[PATCH v12 00/18] media: rockchip: add a driver for the rockchip camera interface

[PATCH v12 00/18] media: rockchip: add a driver for the rockchip camera interface

[Michael Riesch via B4 Relay]

Habidere,

This series introduces support for the Rockchip Camera Interface (CIF),
which is featured in many Rockchip SoCs in different variations.
For example, the PX30 Video Input Processor (VIP) is able to receive
video data via the Digital Video Port (DVP, a parallel data interface)
and transfer it into system memory using a double-buffering mechanism
called ping-pong mode.
The RK3568 Video Capture (VICAP) unit, on the other hand, features a
DVP and a MIPI CSI-2 receiver that can receive video data independently
(both using the ping-pong scheme).
The different variants may have additional features, such as scaling
and/or cropping.
Finally, the RK3588 VICAP unit constitutes an essential piece of the
camera interface with one DVP, six MIPI CSI-2 receivers, scale/crop
units, and a data path multiplexer (to scaler units, to ISP, ...).

The v12 of the series adds a media controller centric V4L2 device driver
for the Rockchip CIF with
 - support for the PX30 VIP (not tested, though, due to the lack of HW)
 - support for the RK3568 VICAP, including
    - capturing frames from the DVP
    - capturing frames from the MIPI CSI-2 receiver
 - abstraction for the ping-pong scheme to allow for future extensions
 - abstraction for the INTERFACE and CROP parts to allow for future
   extensions
 - initial support for different virtual channels (not tested, though,
   due to the lack of HW)
and a V4L2 subdevice driver for the Rockchip MIPI CSI-2 Receiver.

The RK3568 DVP has been tested by Gerald on a WolfVision PF5 hardware,
the RK3568 MIPI CSI-2 have been tested by me on a Radxa ROCK 3A + Radxa
Camera 8M.

The driver can be readily extended to provide support for the RK3588
VICAP variant. In order to keep things simple, however, this extension
shall be submitted separately.

Looking forward to your comments!

To: Mehdi Djait <mehdi.djait@linux.intel.com>
To: Maxime Chevallier <maxime.chevallier@bootlin.com>
To: Théo Lebrun <theo.lebrun@bootlin.com>
To: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
To: Gerald Loacker <gerald.loacker@wolfvision.net>
To: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: Markus Elfring <Markus.Elfring@web.de>
To: Sakari Ailus <sakari.ailus@iki.fi>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
To: Rob Herring <robh+dt@kernel.org>
To: Krzysztof Kozlowski <krzk+dt@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>
To: Heiko Stuebner <heiko@sntech.de>
To: Kever Yang <kever.yang@rock-chips.com>
To: Nicolas Dufresne <nicolas.dufresne@collabora.com>
To: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Collabora Kernel Team <kernel@collabora.com>
To: Paul Kocialkowski <paulk@sys-base.io>
To: Alexander Shiyan <eagle.alexander923@gmail.com>
To: Val Packett <val@packett.cool>
To: Rob Herring <robh@kernel.org>
To: Philipp Zabel <p.zabel@pengutronix.de>
Cc: linux-media@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

Changes in v12:
- added Radxa Camera 8M device tree overlay
- rebased onto v6.18-rc1
- fixed IOMMU pagefaults caused by wrong VLW (Mehdi)
- fixed indentation of register defines in -regs.h (Sakari)
- renamed CSI-2 receiver interrupts (Rob)
- added MEDIA_BUS_TYPE_* as comments in DT bindings (Bryan)
- added newline in rkcif-dev.c (Bryan)
- Link to v11: https://lore.kernel.org/r/20240220-rk3568-vicap-v11-0-af0eada54e5d@collabora.com

Changes in v11:
- rkcif: split large driver patch (6/13 of v10) into smaller
  patches (6-11/17 of v11) (Bryan)
- rkcsi: replaced devm_reset_control_array_get_exclusive with 
  devm_reset_control_get_exclusive (Philipp)
- Link to v10: https://lore.kernel.org/r/20240220-rk3568-vicap-v10-0-62d8a7b209b4@collabora.com

Changes in v10:
- rkcsi: fixed error handling in rkcsi_start (Bryan)
- rkcsi: fixed interrupt references in device tree and bindings
  (Rob's bot)
- added missing call to rkcif_mipi_stop_streaming from rkcif_mipi_isr
  (Mehdi)
- renamed remaining instances "cif_" -> "rkcif_" in functions
- Link to v9: https://lore.kernel.org/r/20240220-rk3568-vicap-v9-0-ace1e5cc4a82@collabora.com

Changes in v9:
- added compatible for RK3588 MIPI CSI-2 receiver, thus dropped
  Krzysztof's R-b
- added interrupts to rkcsi DT binding and RK356x DT
- added variant specific callback to rkcif-capture-mipi that puts
  together the CTRL0 register content (which varies between RK3568
  and RK3588)
- fixed v4l2_fill_pixfmt_mp() return value handling (Mehdi)
- Link to v8: https://lore.kernel.org/r/20240220-rk3568-vicap-v8-0-9d9cbc4b524d@collabora.com

Changes in v8:
- rebased onto v6.16-rc1
- fixed RKCIF_MIPI_MAX value in rkcif-common.h
- fixed rkcsi Kconfig (kernel test robot)
- sorted rkcsi DT bindings document properly, completed example
  (Krzysztof)
- squashed the defconfig patches (Krzysztof), dropped Bryan's R-b
- Link to v7: https://lore.kernel.org/r/20240220-rk3568-vicap-v7-0-7581fd96a33a@collabora.com

Changes in v7:
- moved MIPI CSI-2 receiver driver into separate directory (Laurent)
- rkcsi: fixed return values (Bryan)
- rkcsi: fixed v4l2_get_link_freq to use pad instead of control
  handler (Sakari)
- rkcsi: added data-lanes property (Mehdi)
- rkcif: fixed formatting (Bryan)
- fixed "int" -> "unsigned int" in all for loops (Sakari)
- rkcif-stream: fixed minimum number of required buffers (Mehdi)
- rkcif-stream: used guards for the spinlock (Markus and Mehdi)
- rkcif-stream: made driver less noisy with dev_dbg (Mehdi)
- rkcif-stream: fixed issues detected by v4l2-compliance (Mehdi)
- rkcif-dvp-capture: fixed return value propagation in _register()
  (Mehdi)
- removed stray "phy-names" from required properties (Rob's bot)
- Link to v6: https://lore.kernel.org/r/20240220-rk3568-vicap-v6-0-d2f5fbee1551@collabora.com

Changes in v6:
- rebased onto v6.15-rc1
- renamed "MIPI CSI HOST" -> "MIPI CSI RECEIVER" (Laurent)
- s/@wolfvision.net/@collabora.com where appropriate
- renamed DVP delay property and moved it to the endpoint (Sakari)
- implemented DT review comments (Krzysztof and Sakari)
- implemented driver review comments (Sakari)
- fixed issues raised by media-ci (yet again)
- added documentation including a RK3568 topology (new patch 1)
  (Sakari)
- added patch that enables rkcif in the defconfig (new patch 9)
- Link to v5: https://lore.kernel.org/r/20250306-v6-8-topic-rk3568-vicap-v5-0-f02152534f3c@wolfvision.net

Changes in v5:
- fixed issues raised by media-ci
- fixed dt bindings (comments by Rob and Sakari)
- fixed probe on systems with no DVP in DT (comment by Alexander)
- fixed error path in register offset calculation
- split off MIPI CSI host driver into separate module (comment
  by Mehdi)
- added MODULE_DEVICE_TABLE() for both drivers (comment by Mehdi)
- Link to v4: https://lore.kernel.org/r/20250219-v6-8-topic-rk3568-vicap-v4-0-e906600ae3b0@wolfvision.net

Changes in v4:
- added support for the MIPI CSI-2 receiver (new patches 4, 6, 7, 10)
- fixed asserts on stream stop
- fixed register address lookup
- fixed link validiation callback
- fixed issues raised by Rob's bot, kernel test robot, and media-ci
- Link to v3: https://lore.kernel.org/r/20250206-v6-8-topic-rk3568-vicap-v3-0-69d1f19e5c40@wolfvision.net

Changes in v3:
- renamed the driver "cif" -> "rkcif"
- rebased onto v6.14-rc1
- abstracted the generic INTERFACE+CROP part
- addressed comments by Rob and Sakari
- added V4L2 MPLANE formats to DVP
- added patch that enables the RK3568 VICAP DVP on PF5 IO Expander
- fixed formatting issues raised by media-ci bot
- Link to v2: https://lore.kernel.org/r/20241217-v6-8-topic-rk3568-vicap-v2-0-b1d488fcc0d3@wolfvision.net

Changes in v2:
- merged with Mehdi's v13
- refactored the complete driver towards a media controller centric driver
- abstracted the generic ping-pong stream (can be used for DVP as well as for CSI-2)
- switched to MPLANE API
- added support for notifications
- Link to v1: https://lore.kernel.org/r/20240220-v6-8-topic-rk3568-vicap-v1-0-2680a1fa640b@wolfvision.net

---
Mehdi Djait (2):
      media: dt-bindings: add rockchip px30 vip
      arm64: dts: rockchip: add the vip node to px30

Michael Riesch (16):
      Documentation: admin-guide: media: add rockchip camera interface
      media: dt-bindings: video-interfaces: add defines for sampling modes
      media: dt-bindings: add rockchip rk3568 vicap
      media: dt-bindings: add rockchip rk3568 mipi csi-2 receiver
      media: rockchip: add driver for the rockchip mipi csi-2 receiver
      media: rockchip: add driver for the rockchip camera interface
      media: rockchip: rkcif: add abstraction for interface and crop blocks
      media: rockchip: rkcif: add abstraction for dma blocks
      media: rockchip: rkcif: add support for px30 vip dvp capture
      media: rockchip: rkcif: add support for rk3568 vicap dvp capture
      media: rockchip: rkcif: add support for rk3568 vicap mipi capture
      arm64: defconfig: enable rockchip camera interface and mipi csi-2 receiver
      arm64: dts: rockchip: add vicap node to rk356x
      arm64: dts: rockchip: add mipi csi-2 receiver node to rk356x
      arm64: dts: rockchip: enable vicap dvp on wolfvision pf5 io expander
      arm64: dts: rockchip: add overlay for radxa camera 8m

 .../admin-guide/media/rkcif-rk3568-vicap.dot       |  21 +
 Documentation/admin-guide/media/rkcif.rst          |  83 ++
 Documentation/admin-guide/media/v4l-drivers.rst    |   1 +
 .../bindings/media/rockchip,px30-vip.yaml          | 124 +++
 .../bindings/media/rockchip,rk3568-mipi-csi.yaml   | 146 ++++
 .../bindings/media/rockchip,rk3568-vicap.yaml      | 172 ++++
 MAINTAINERS                                        |  17 +
 arch/arm64/boot/dts/rockchip/Makefile              |   5 +
 arch/arm64/boot/dts/rockchip/px30.dtsi             |  12 +
 .../dts/rockchip/rk3568-rock-3a-radxa-cam8m.dtso   |  90 +++
 .../rk3568-wolfvision-pf5-io-expander.dtso         |  20 +
 arch/arm64/boot/dts/rockchip/rk356x-base.dtsi      |  78 ++
 arch/arm64/configs/defconfig                       |   2 +
 drivers/media/platform/rockchip/Kconfig            |   2 +
 drivers/media/platform/rockchip/Makefile           |   2 +
 drivers/media/platform/rockchip/rkcif/Kconfig      |  18 +
 drivers/media/platform/rockchip/rkcif/Makefile     |   8 +
 .../platform/rockchip/rkcif/rkcif-capture-dvp.c    | 865 +++++++++++++++++++++
 .../platform/rockchip/rkcif/rkcif-capture-dvp.h    |  25 +
 .../platform/rockchip/rkcif/rkcif-capture-mipi.c   | 777 ++++++++++++++++++
 .../platform/rockchip/rkcif/rkcif-capture-mipi.h   |  23 +
 .../media/platform/rockchip/rkcif/rkcif-common.h   | 250 ++++++
 drivers/media/platform/rockchip/rkcif/rkcif-dev.c  | 303 ++++++++
 .../platform/rockchip/rkcif/rkcif-interface.c      | 426 ++++++++++
 .../platform/rockchip/rkcif/rkcif-interface.h      |  31 +
 drivers/media/platform/rockchip/rkcif/rkcif-regs.h | 153 ++++
 .../media/platform/rockchip/rkcif/rkcif-stream.c   | 638 +++++++++++++++
 .../media/platform/rockchip/rkcif/rkcif-stream.h   |  32 +
 drivers/media/platform/rockchip/rkcsi/Kconfig      |  16 +
 drivers/media/platform/rockchip/rkcsi/Makefile     |   3 +
 drivers/media/platform/rockchip/rkcsi/rkcsi.c      | 742 ++++++++++++++++++
 include/dt-bindings/media/video-interfaces.h       |   4 +
 32 files changed, 5089 insertions(+)
---
base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
change-id: 20240220-rk3568-vicap-b9b3f9925f44

Best regards,
-- 
Michael Riesch <michael.riesch@collabora.com>

[PATCH v12 01/18] Documentation: admin-guide: media: add rockchip camera interface

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add a document that describes the different variants of the Rockchip
Camera Interface (CIF), their hardware layout, as well as their
representation in the media controller centric rkcif device driver,
which is located under drivers/media/platform/rockchip/rkcif.

Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 .../admin-guide/media/rkcif-rk3568-vicap.dot       | 21 ++++++
 Documentation/admin-guide/media/rkcif.rst          | 83 ++++++++++++++++++++++
 Documentation/admin-guide/media/v4l-drivers.rst    |  1 +
 MAINTAINERS                                        |  7 ++
 4 files changed, 112 insertions(+)

diff --git a/Documentation/admin-guide/media/rkcif-rk3568-vicap.dot b/Documentation/admin-guide/media/rkcif-rk3568-vicap.dot
new file mode 100644
index 000000000000..02340135a2ac
--- /dev/null
+++ b/Documentation/admin-guide/media/rkcif-rk3568-vicap.dot
@@ -0,0 +1,21 @@
+digraph board {
+        rankdir=TB
+        n00000001 [label="{{<port0> 0} | rkcif-dvp0\n/dev/v4l-subdev0 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+        n00000001:port1 -> n00000004
+        n00000004 [label="rkcif-dvp0-id0\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
+        n0000000a [label="{{<port0> 0} | rkcif-mipi0\n/dev/v4l-subdev1 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+        n0000000a:port1 -> n0000000d
+        n0000000a:port1 -> n00000013 [style=dashed]
+        n0000000a:port1 -> n00000019 [style=dashed]
+        n0000000a:port1 -> n0000001f [style=dashed]
+        n0000000d [label="rkcif-mipi0-id0\n/dev/video1", shape=box, style=filled, fillcolor=yellow]
+        n00000013 [label="rkcif-mipi0-id1\n/dev/video2", shape=box, style=filled, fillcolor=yellow]
+        n00000019 [label="rkcif-mipi0-id2\n/dev/video3", shape=box, style=filled, fillcolor=yellow]
+        n0000001f [label="rkcif-mipi0-id3\n/dev/video4", shape=box, style=filled, fillcolor=yellow]
+        n00000025 [label="{{} | it6801 2-0048\n/dev/v4l-subdev2 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+        n00000025:port0 -> n00000001:port0
+        n00000029 [label="{{<port0> 0} | rockchip-mipi-csi fdfb0000.csi\n/dev/v4l-subdev3 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+        n00000029:port1 -> n0000000a:port0
+        n0000002e [label="{{} | imx415 4-001a\n/dev/v4l-subdev4 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+        n0000002e:port0 -> n00000029:port0
+}
diff --git a/Documentation/admin-guide/media/rkcif.rst b/Documentation/admin-guide/media/rkcif.rst
new file mode 100644
index 000000000000..f35f644a54a0
--- /dev/null
+++ b/Documentation/admin-guide/media/rkcif.rst
@@ -0,0 +1,83 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================================
+Rockchip Camera Interface (CIF)
+=========================================
+
+Introduction
+============
+
+The Rockchip Camera Interface (CIF) is featured in many Rockchip SoCs in
+different variants.
+The different variants are combinations of common building blocks, such as
+
+* INTERFACE blocks of different types, namely
+
+  * the Digital Video Port (DVP, a parallel data interface)
+  * the interface block for the MIPI CSI-2 receiver
+
+* CROP units
+
+* MIPI CSI-2 receiver (not available on all variants): This unit is referred
+  to as MIPI CSI HOST in the Rockchip documentation.
+  Technically, it is a separate hardware block, but it is strongly coupled to
+  the CIF and therefore included here.
+
+* MUX units (not available on all variants) that pass the video data to an
+  image signal processor (ISP)
+
+* SCALE units (not available on all variants)
+
+* DMA engines that transfer video data into system memory using a
+  double-buffering mechanism called ping-pong mode
+
+* Support for four streams per INTERFACE block (not available on all
+  variants), e.g., for MIPI CSI-2 Virtual Channels (VCs)
+
+This document describes the different variants of the CIF, their hardware
+layout, as well as their representation in the media controller centric rkcif
+device driver, which is located under drivers/media/platform/rockchip/rkcif.
+
+Variants
+========
+
+Rockchip PX30 Video Input Processor (VIP)
+-----------------------------------------
+
+The PX30 Video Input Processor (VIP) features a digital video port that accepts
+parallel video data or BT.656.
+Since these protocols do not feature multiple streams, the VIP has one DMA
+engine that transfers the input video data into system memory.
+
+The rkcif driver represents this hardware variant by exposing one V4L2 subdevice
+(the DVP INTERFACE/CROP block) and one V4L2 device (the DVP DMA engine).
+
+Rockchip RK3568 Video Capture (VICAP)
+-------------------------------------
+
+The RK3568 Video Capture (VICAP) unit features a digital video port and a MIPI
+CSI-2 receiver that can receive video data independently.
+The DVP accepts parallel video data, BT.656 and BT.1120.
+Since the BT.1120 protocol may feature more than one stream, the RK3568 VICAP
+DVP features four DMA engines that can capture different streams.
+Similarly, the RK3568 VICAP MIPI CSI-2 receiver features four DMA engines to
+handle different Virtual Channels (VCs).
+
+The rkcif driver represents this hardware variant by exposing up to three V4L2
+subdevices:
+
+* rkcif-dvp0: INTERFACE/CROP block for the DVP
+* rockchip-mipi-csi fdfb0000.csi: MIPI CSI-2 receiver
+* rkcif-mipi0: INTERFACE/CROP block for the MIPI CSI-2 receiver
+
+and up to five V4L2 devices:
+
+* rkcif-dvp0-id0: The support for multiple streams on the DVP is not yet
+  implemented, as it is hard to find test hardware. Thus, this video device
+  represents the first DMA engine of the RK3568 DVP.
+* rkcif-mipi0-id[0...3]: The four DMA engines of the RK3568 MIPI CSI-2
+  receiver. Each DMA engine can capture a certain MIPI CSI-2 Virtual Channel.
+
+.. kernel-figure:: rkcif-rk3568-vicap.dot
+    :alt:   Topology of the RK3568 Video Capture (VICAP) unit
+    :align: center
diff --git a/Documentation/admin-guide/media/v4l-drivers.rst b/Documentation/admin-guide/media/v4l-drivers.rst
index 3bac5165b134..694fad685ff5 100644
--- a/Documentation/admin-guide/media/v4l-drivers.rst
+++ b/Documentation/admin-guide/media/v4l-drivers.rst
@@ -25,6 +25,7 @@ Video4Linux (V4L) driver-specific documentation
 	qcom_camss
 	raspberrypi-pisp-be
 	rcar-fdp1
+	rkcif
 	rkisp1
 	raspberrypi-rp1-cfe
 	saa7134
diff --git a/MAINTAINERS b/MAINTAINERS
index 46126ce2f968..3f9fbb5d73da 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22210,6 +22210,13 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml
 F:	drivers/net/can/rockchip/
 
+ROCKCHIP CAMERA INTERFACE (RKCIF) DRIVER
+M:	Mehdi Djait <mehdi.djait@linux.intel.com>
+M:	Michael Riesch <michael.riesch@collabora.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	Documentation/admin-guide/media/rkcif*
+
 ROCKCHIP CRYPTO DRIVERS
 M:	Corentin Labbe <clabbe@baylibre.com>
 L:	linux-crypto@vger.kernel.org

-- 
2.39.5

[PATCH v12 02/18] media: dt-bindings: video-interfaces: add defines for sampling modes

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add defines for the pixel clock sampling modes (rising edge, falling edge,
dual edge) for parallel video interfaces.
This avoids hardcoded constants in device tree sources.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 include/dt-bindings/media/video-interfaces.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/dt-bindings/media/video-interfaces.h b/include/dt-bindings/media/video-interfaces.h
index 88b9d05d8075..0b19c9b2e627 100644
--- a/include/dt-bindings/media/video-interfaces.h
+++ b/include/dt-bindings/media/video-interfaces.h
@@ -20,4 +20,8 @@
 #define MEDIA_BUS_CSI2_CPHY_LINE_ORDER_CAB	4
 #define MEDIA_BUS_CSI2_CPHY_LINE_ORDER_CBA	5
 
+#define MEDIA_PCLK_SAMPLE_FALLING_EDGE		0
+#define MEDIA_PCLK_SAMPLE_RISING_EDGE		1
+#define MEDIA_PCLK_SAMPLE_DUAL_EDGE		2
+
 #endif /* __DT_BINDINGS_MEDIA_VIDEO_INTERFACES_H__ */

-- 
2.39.5

[PATCH v12 03/18] media: dt-bindings: add rockchip px30 vip

[Michael Riesch via B4 Relay]

From: Mehdi Djait <mehdi.djait@bootlin.com>

Add documentation for the Rockchip PX30 Video Input Processor (VIP).

Signed-off-by: Mehdi Djait <mehdi.djait@bootlin.com>
[revised description]
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 .../bindings/media/rockchip,px30-vip.yaml          | 124 +++++++++++++++++++++
 MAINTAINERS                                        |   1 +
 2 files changed, 125 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/rockchip,px30-vip.yaml b/Documentation/devicetree/bindings/media/rockchip,px30-vip.yaml
new file mode 100644
index 000000000000..cc08ce94bef7
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip,px30-vip.yaml
@@ -0,0 +1,124 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/rockchip,px30-vip.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip PX30 Video Input Processor (VIP)
+
+maintainers:
+  - Mehdi Djait <mehdi.djait@linux.intel.com>
+  - Michael Riesch <michael.riesch@collabora.com>
+
+description:
+  The Rockchip PX30 Video Input Processor (VIP) receives the data from a camera
+  sensor or CCIR656 encoder and transfers it into system main memory by AXI bus.
+
+properties:
+  compatible:
+    const: rockchip,px30-vip
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: ACLK
+      - description: HCLK
+      - description: PCLK
+
+  clock-names:
+    items:
+      - const: aclk
+      - const: hclk
+      - const: pclk
+
+  resets:
+    items:
+      - description: AXI
+      - description: AHB
+      - description: PCLK IN
+
+  reset-names:
+    items:
+      - const: axi
+      - const: ahb
+      - const: pclkin
+
+  power-domains:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: input port on the parallel interface
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              bus-type:
+                enum:
+                  - 5 # MEDIA_BUS_TYPE_PARALLEL
+                  - 6 # MEDIA_BUS_TYPE_BT656
+
+            required:
+              - bus-type
+
+    required:
+      - port@0
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/px30-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/media/video-interfaces.h>
+    #include <dt-bindings/power/px30-power.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        video-capture@ff490000 {
+            compatible = "rockchip,px30-vip";
+            reg = <0x0 0xff490000 0x0 0x200>;
+            interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cru ACLK_CIF>, <&cru HCLK_CIF>, <&cru PCLK_CIF>;
+            clock-names = "aclk", "hclk", "pclk";
+            power-domains = <&power PX30_PD_VI>;
+            resets = <&cru SRST_CIF_A>, <&cru SRST_CIF_H>, <&cru SRST_CIF_PCLKIN>;
+            reset-names = "axi", "ahb", "pclkin";
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+
+                    cif_in: endpoint {
+                        remote-endpoint = <&tw9900_out>;
+                        bus-type = <MEDIA_BUS_TYPE_BT656>;
+                    };
+                };
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 3f9fbb5d73da..416cfb7e24f6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22216,6 +22216,7 @@ M:	Michael Riesch <michael.riesch@collabora.com>
 L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	Documentation/admin-guide/media/rkcif*
+F:	Documentation/devicetree/bindings/media/rockchip,px30-vip.yaml
 
 ROCKCHIP CRYPTO DRIVERS
 M:	Corentin Labbe <clabbe@baylibre.com>

-- 
2.39.5

[PATCH v12 04/18] media: dt-bindings: add rockchip rk3568 vicap

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add documentation for the Rockchip RK3568 Video Capture (VICAP) unit.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 .../bindings/media/rockchip,rk3568-vicap.yaml      | 172 +++++++++++++++++++++
 MAINTAINERS                                        |   1 +
 2 files changed, 173 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/rockchip,rk3568-vicap.yaml b/Documentation/devicetree/bindings/media/rockchip,rk3568-vicap.yaml
new file mode 100644
index 000000000000..18cd0a5a5318
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip,rk3568-vicap.yaml
@@ -0,0 +1,172 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/rockchip,rk3568-vicap.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3568 Video Capture (VICAP)
+
+maintainers:
+  - Michael Riesch <michael.riesch@collabora.com>
+
+description:
+  The Rockchip RK3568 Video Capture (VICAP) block features a digital video
+  port (DVP, a parallel video interface) and a MIPI CSI-2 port. It receives
+  the data from camera sensors, video decoders, or other companion ICs and
+  transfers it into system main memory by AXI bus.
+
+properties:
+  compatible:
+    const: rockchip,rk3568-vicap
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: ACLK
+      - description: HCLK
+      - description: DCLK
+      - description: ICLK
+
+  clock-names:
+    items:
+      - const: aclk
+      - const: hclk
+      - const: dclk
+      - const: iclk
+
+  iommus:
+    maxItems: 1
+
+  resets:
+    items:
+      - description: ARST
+      - description: HRST
+      - description: DRST
+      - description: PRST
+      - description: IRST
+
+  reset-names:
+    items:
+      - const: arst
+      - const: hrst
+      - const: drst
+      - const: prst
+      - const: irst
+
+  rockchip,grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: Phandle to general register file used for video input block control.
+
+  power-domains:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: The digital video port (DVP, a parallel video interface).
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              bus-type:
+                enum:
+                  - 5 # MEDIA_BUS_TYPE_PARALLEL
+                  - 6 # MEDIA_BUS_TYPE_BT656
+
+              rockchip,dvp-clk-delay:
+                $ref: /schemas/types.yaml#/definitions/uint32
+                default: 0
+                minimum: 0
+                maximum: 127
+                description:
+                  Delay the DVP path clock input to align the sampling phase,
+                  only valid in dual edge sampling mode. Delay is zero by
+                  default and can be adjusted optionally.
+
+            required:
+              - bus-type
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Port connected to the MIPI CSI-2 receiver output.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3568-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/power/rk3568-power.h>
+    #include <dt-bindings/media/video-interfaces.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        vicap: video-capture@fdfe0000 {
+            compatible = "rockchip,rk3568-vicap";
+            reg = <0x0 0xfdfe0000 0x0 0x200>;
+            interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
+            assigned-clocks = <&cru DCLK_VICAP>;
+            assigned-clock-rates = <300000000>;
+            clocks = <&cru ACLK_VICAP>, <&cru HCLK_VICAP>,
+                     <&cru DCLK_VICAP>, <&cru ICLK_VICAP_G>;
+            clock-names = "aclk", "hclk", "dclk", "iclk";
+            iommus = <&vicap_mmu>;
+            power-domains = <&power RK3568_PD_VI>;
+            resets = <&cru SRST_A_VICAP>, <&cru SRST_H_VICAP>,
+                     <&cru SRST_D_VICAP>, <&cru SRST_P_VICAP>,
+                     <&cru SRST_I_VICAP>;
+            reset-names = "arst", "hrst", "drst", "prst", "irst";
+            rockchip,grf = <&grf>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                vicap_dvp: port@0 {
+                    reg = <0>;
+
+                    vicap_dvp_input: endpoint {
+                        bus-type = <MEDIA_BUS_TYPE_BT656>;
+                        bus-width = <16>;
+                        pclk-sample = <MEDIA_PCLK_SAMPLE_DUAL_EDGE>;
+                        remote-endpoint = <&it6801_output>;
+                    };
+                };
+
+                vicap_mipi: port@1 {
+                    reg = <1>;
+
+                    vicap_mipi_input: endpoint {
+                        remote-endpoint = <&csi_output>;
+                    };
+                };
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 416cfb7e24f6..56d3016385c7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22217,6 +22217,7 @@ L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	Documentation/admin-guide/media/rkcif*
 F:	Documentation/devicetree/bindings/media/rockchip,px30-vip.yaml
+F:	Documentation/devicetree/bindings/media/rockchip,rk3568-vicap.yaml
 
 ROCKCHIP CRYPTO DRIVERS
 M:	Corentin Labbe <clabbe@baylibre.com>

-- 
2.39.5

[PATCH v12 05/18] media: dt-bindings: add rockchip rk3568 mipi csi-2 receiver

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add documentation for the Rockchip RK3568 MIPI CSI-2 Receiver.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Bryan O'Donoghue <bod@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 .../bindings/media/rockchip,rk3568-mipi-csi.yaml   | 146 +++++++++++++++++++++
 MAINTAINERS                                        |   6 +
 2 files changed, 152 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml b/Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml
new file mode 100644
index 000000000000..4c94a59cd106
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml
@@ -0,0 +1,146 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/rockchip,rk3568-mipi-csi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3568 MIPI CSI-2 Receiver
+
+maintainers:
+  - Michael Riesch <michael.riesch@collabora.com>
+
+description:
+  The Rockchip RK3568 MIPI CSI-2 Receiver is a CSI-2 bridge with one input port
+  and one output port. It receives the data with the help of an external
+  MIPI PHY (C-PHY or D-PHY) and passes it to the Rockchip RK3568 Video Capture
+  (VICAP) block.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - rockchip,rk3588-mipi-csi
+          - const: rockchip,rk3568-mipi-csi
+      - const: rockchip,rk3568-mipi-csi
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: Interrupt that signals changes in CSI2HOST_ERR1.
+      - description: Interrupt that signals changes in CSI2HOST_ERR2.
+
+  interrupt-names:
+    items:
+      - const: err1
+      - const: err2
+
+  clocks:
+    maxItems: 1
+
+  phys:
+    maxItems: 1
+    description: MIPI C-PHY or D-PHY.
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: Input port node. Connect to e.g., a MIPI CSI-2 image sensor.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              bus-type:
+                enum:
+                  - 1 # MEDIA_BUS_TYPE_CSI2_CPHY
+                  - 4 # MEDIA_BUS_TYPE_CSI2_DPHY
+
+              data-lanes:
+                minItems: 1
+                maxItems: 4
+
+            required:
+              - bus-type
+              - data-lanes
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Output port connected to a RK3568 VICAP port.
+
+    required:
+      - port@0
+      - port@1
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - phys
+  - ports
+  - power-domains
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3568-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/media/video-interfaces.h>
+    #include <dt-bindings/power/rk3568-power.h>
+
+    soc {
+        interrupt-parent = <&gic>;
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        csi: csi@fdfb0000 {
+            compatible = "rockchip,rk3568-mipi-csi";
+            reg = <0x0 0xfdfb0000 0x0 0x10000>;
+            interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "irq1", "irq2";
+            clocks = <&cru PCLK_CSI2HOST1>;
+            phys = <&csi_dphy>;
+            power-domains = <&power RK3568_PD_VI>;
+            resets = <&cru SRST_P_CSI2HOST1>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                csi_in: port@0 {
+                    reg = <0>;
+
+                    csi_input: endpoint {
+                        bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
+                        data-lanes = <1 2 3 4>;
+                        remote-endpoint = <&imx415_output>;
+                    };
+                };
+
+                csi_out: port@1 {
+                    reg = <1>;
+
+                    csi_output: endpoint {
+                        remote-endpoint = <&vicap_mipi_input>;
+                    };
+                };
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 56d3016385c7..6d79fded8e3d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22245,6 +22245,12 @@ F:	Documentation/userspace-api/media/v4l/metafmt-rkisp1.rst
 F:	drivers/media/platform/rockchip/rkisp1
 F:	include/uapi/linux/rkisp1-config.h
 
+ROCKCHIP MIPI CSI-2 RECEIVER DRIVER
+M:	Michael Riesch <michael.riesch@collabora.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml
+
 ROCKCHIP RK3568 RANDOM NUMBER GENERATOR SUPPORT
 M:	Daniel Golle <daniel@makrotopia.org>
 M:	Aurelien Jarno <aurelien@aurel32.net>

-- 
2.39.5

[PATCH v12 06/18] media: rockchip: add driver for the rockchip mipi csi-2 receiver

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

The Rockchip RK3568 MIPI CSI-2 Receiver is a CSI-2 bridge with one
input port and one output port. It receives the data with the help
of an external MIPI PHY (C-PHY or D-PHY) and passes it to the
Rockchip RK3568 Video Capture (VICAP) block.

Add a V4L2 subdevice driver for this unit.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 MAINTAINERS                                    |   1 +
 drivers/media/platform/rockchip/Kconfig        |   1 +
 drivers/media/platform/rockchip/Makefile       |   1 +
 drivers/media/platform/rockchip/rkcsi/Kconfig  |  16 +
 drivers/media/platform/rockchip/rkcsi/Makefile |   3 +
 drivers/media/platform/rockchip/rkcsi/rkcsi.c  | 742 +++++++++++++++++++++++++
 6 files changed, 764 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 6d79fded8e3d..d7c3f5ad50ad 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22250,6 +22250,7 @@ M:	Michael Riesch <michael.riesch@collabora.com>
 L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.yaml
+F:	drivers/media/platform/rockchip/rkcsi/
 
 ROCKCHIP RK3568 RANDOM NUMBER GENERATOR SUPPORT
 M:	Daniel Golle <daniel@makrotopia.org>
diff --git a/drivers/media/platform/rockchip/Kconfig b/drivers/media/platform/rockchip/Kconfig
index 9bbeec4996aa..2f6f77afecfc 100644
--- a/drivers/media/platform/rockchip/Kconfig
+++ b/drivers/media/platform/rockchip/Kconfig
@@ -3,5 +3,6 @@
 comment "Rockchip media platform drivers"
 
 source "drivers/media/platform/rockchip/rga/Kconfig"
+source "drivers/media/platform/rockchip/rkcsi/Kconfig"
 source "drivers/media/platform/rockchip/rkisp1/Kconfig"
 source "drivers/media/platform/rockchip/rkvdec/Kconfig"
diff --git a/drivers/media/platform/rockchip/Makefile b/drivers/media/platform/rockchip/Makefile
index 286dc5c53f7e..33e24b47735c 100644
--- a/drivers/media/platform/rockchip/Makefile
+++ b/drivers/media/platform/rockchip/Makefile
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-y += rga/
+obj-y += rkcsi/
 obj-y += rkisp1/
 obj-y += rkvdec/
diff --git a/drivers/media/platform/rockchip/rkcsi/Kconfig b/drivers/media/platform/rockchip/rkcsi/Kconfig
new file mode 100644
index 000000000000..d8004198c386
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcsi/Kconfig
@@ -0,0 +1,16 @@
+config VIDEO_ROCKCHIP_CSI
+	tristate "Rockchip MIPI CSI-2 Receiver"
+	depends on VIDEO_DEV
+	depends on ARCH_ROCKCHIP || COMPILE_TEST
+	depends on V4L_PLATFORM_DRIVERS
+	depends on PM && COMMON_CLK
+	select MEDIA_CONTROLLER
+	select V4L2_FWNODE
+	select VIDEO_V4L2_SUBDEV_API
+	help
+	  This is a driver for Rockchip MIPI CSI-2 Receiver. It is featured
+	  in various Rockchips SoCs, usually in combination with a Video
+	  Capture (VICAP) unit (see Rockchip Camera Interface (CIF) driver).
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called rockchip-mipi-csi.
diff --git a/drivers/media/platform/rockchip/rkcsi/Makefile b/drivers/media/platform/rockchip/rkcsi/Makefile
new file mode 100644
index 000000000000..147712cbb68a
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcsi/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_VIDEO_ROCKCHIP_CSI) += rockchip-mipi-csi.o
+rockchip-mipi-csi-objs += rkcsi.o
diff --git a/drivers/media/platform/rockchip/rkcsi/rkcsi.c b/drivers/media/platform/rockchip/rkcsi/rkcsi.c
new file mode 100644
index 000000000000..fc950060b81a
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcsi/rkcsi.c
@@ -0,0 +1,742 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip MIPI CSI-2 Receiver Driver
+ *
+ * Copyright (C) 2019 Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <media/mipi-csi2.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-subdev.h>
+
+#define CSI2HOST_N_LANES     0x04
+#define CSI2HOST_CSI2_RESETN 0x10
+#define CSI2HOST_PHY_STATE   0x14
+#define CSI2HOST_ERR1	     0x20
+#define CSI2HOST_ERR2	     0x24
+#define CSI2HOST_MSK1	     0x28
+#define CSI2HOST_MSK2	     0x2c
+#define CSI2HOST_CONTROL     0x40
+
+#define SW_CPHY_EN(x)	     ((x) << 0)
+#define SW_DSI_EN(x)	     ((x) << 4)
+#define SW_DATATYPE_FS(x)    ((x) << 8)
+#define SW_DATATYPE_FE(x)    ((x) << 14)
+#define SW_DATATYPE_LS(x)    ((x) << 20)
+#define SW_DATATYPE_LE(x)    ((x) << 26)
+
+#define RKCSI_CLKS_MAX	     1
+
+enum {
+	RKCSI_PAD_SINK,
+	RKCSI_PAD_SRC,
+	RKCSI_PAD_MAX,
+};
+
+struct rkcsi_format {
+	u32 code;
+	u8 depth;
+	u8 csi_dt;
+};
+
+struct rkcsi_device {
+	struct device *dev;
+
+	void __iomem *base_addr;
+	struct clk_bulk_data *clks;
+	unsigned int clks_num;
+	struct phy *phy;
+	struct reset_control *reset;
+
+	const struct rkcsi_format *formats;
+	unsigned int formats_num;
+
+	struct media_pad pads[RKCSI_PAD_MAX];
+	struct v4l2_async_notifier notifier;
+	struct v4l2_fwnode_endpoint vep;
+	struct v4l2_subdev sd;
+
+	struct v4l2_subdev *source_sd;
+	u32 source_pad;
+};
+
+static const struct v4l2_mbus_framefmt default_format = {
+	.width = 3840,
+	.height = 2160,
+	.code = MEDIA_BUS_FMT_SRGGB10_1X10,
+	.field = V4L2_FIELD_NONE,
+	.colorspace = V4L2_COLORSPACE_RAW,
+	.ycbcr_enc = V4L2_YCBCR_ENC_601,
+	.quantization = V4L2_QUANTIZATION_FULL_RANGE,
+	.xfer_func = V4L2_XFER_FUNC_NONE,
+};
+
+static const struct rkcsi_format formats[] = {
+	/* YUV formats */
+	{
+		.code = MEDIA_BUS_FMT_YUYV8_1X16,
+		.depth = 16,
+		.csi_dt = MIPI_CSI2_DT_YUV422_8B,
+	},
+	{
+		.code = MEDIA_BUS_FMT_UYVY8_1X16,
+		.depth = 16,
+		.csi_dt = MIPI_CSI2_DT_YUV422_8B,
+	},
+	{
+		.code = MEDIA_BUS_FMT_YVYU8_1X16,
+		.depth = 16,
+		.csi_dt = MIPI_CSI2_DT_YUV422_8B,
+	},
+	{
+		.code = MEDIA_BUS_FMT_VYUY8_1X16,
+		.depth = 16,
+		.csi_dt = MIPI_CSI2_DT_YUV422_8B,
+	},
+	/* RGB formats */
+	{
+		.code = MEDIA_BUS_FMT_RGB888_1X24,
+		.depth = 24,
+		.csi_dt = MIPI_CSI2_DT_RGB888,
+	},
+	{
+		.code = MEDIA_BUS_FMT_BGR888_1X24,
+		.depth = 24,
+		.csi_dt = MIPI_CSI2_DT_RGB888,
+	},
+	/* Bayer formats */
+	{
+		.code = MEDIA_BUS_FMT_SBGGR8_1X8,
+		.depth = 8,
+		.csi_dt = MIPI_CSI2_DT_RAW8,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGBRG8_1X8,
+		.depth = 8,
+		.csi_dt = MIPI_CSI2_DT_RAW8,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGRBG8_1X8,
+		.depth = 8,
+		.csi_dt = MIPI_CSI2_DT_RAW8,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SRGGB8_1X8,
+		.depth = 8,
+		.csi_dt = MIPI_CSI2_DT_RAW8,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SBGGR10_1X10,
+		.depth = 10,
+		.csi_dt = MIPI_CSI2_DT_RAW10,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGBRG10_1X10,
+		.depth = 10,
+		.csi_dt = MIPI_CSI2_DT_RAW10,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGRBG10_1X10,
+		.depth = 10,
+		.csi_dt = MIPI_CSI2_DT_RAW10,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SRGGB10_1X10,
+		.depth = 10,
+		.csi_dt = MIPI_CSI2_DT_RAW10,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SBGGR12_1X12,
+		.depth = 12,
+		.csi_dt = MIPI_CSI2_DT_RAW12,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGBRG12_1X12,
+		.depth = 12,
+		.csi_dt = MIPI_CSI2_DT_RAW12,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGRBG12_1X12,
+		.depth = 12,
+		.csi_dt = MIPI_CSI2_DT_RAW12,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SRGGB12_1X12,
+		.depth = 12,
+		.csi_dt = MIPI_CSI2_DT_RAW12,
+	},
+};
+
+static inline struct rkcsi_device *to_rkcsi(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct rkcsi_device, sd);
+}
+
+static inline __maybe_unused void rkcsi_write(struct rkcsi_device *csi_dev,
+					      unsigned int addr, u32 val)
+{
+	writel(val, csi_dev->base_addr + addr);
+}
+
+static inline __maybe_unused u32 rkcsi_read(struct rkcsi_device *csi_dev,
+					    unsigned int addr)
+{
+	return readl(csi_dev->base_addr + addr);
+}
+
+static const struct rkcsi_format *
+rkcsi_find_format(struct rkcsi_device *csi_dev, u32 mbus_code)
+{
+	const struct rkcsi_format *format;
+
+	WARN_ON(csi_dev->formats_num == 0);
+
+	for (int i = 0; i < csi_dev->formats_num; i++) {
+		format = &csi_dev->formats[i];
+		if (format->code == mbus_code)
+			return format;
+	}
+
+	return NULL;
+}
+
+static int rkcsi_start(struct rkcsi_device *csi_dev)
+{
+	struct media_pad *source_pad =
+		&csi_dev->source_sd->entity.pads[csi_dev->source_pad];
+	enum v4l2_mbus_type bus_type = csi_dev->vep.bus_type;
+	union phy_configure_opts opts;
+	s64 link_freq;
+	u32 lanes = csi_dev->vep.bus.mipi_csi2.num_data_lanes;
+	u32 control = 0;
+	int ret;
+
+	if (lanes < 1 || lanes > 4)
+		return -EINVAL;
+
+	/* set mult and div to 0, thus completely rely on V4L2_CID_LINK_FREQ */
+	link_freq = v4l2_get_link_freq(source_pad, 0, 0);
+	if (link_freq <= 0)
+		return -EINVAL;
+
+	if (bus_type == V4L2_MBUS_CSI2_DPHY) {
+		struct phy_configure_opts_mipi_dphy *cfg = &opts.mipi_dphy;
+
+		ret = phy_mipi_dphy_get_default_config_for_hsclk(link_freq * 2,
+								 lanes, cfg);
+		if (ret)
+			return ret;
+
+		ret = phy_set_mode(csi_dev->phy, PHY_MODE_MIPI_DPHY);
+		if (ret)
+			return ret;
+
+		ret = phy_configure(csi_dev->phy, &opts);
+		if (ret)
+			return ret;
+
+		control |= SW_CPHY_EN(0);
+
+	} else if (bus_type == V4L2_MBUS_CSI2_CPHY) {
+		/* TODO: implement CPHY configuration */
+		return -EOPNOTSUPP;
+	} else {
+		return -EINVAL;
+	}
+
+	control |= SW_DATATYPE_FS(0x00) | SW_DATATYPE_FE(0x01) |
+		   SW_DATATYPE_LS(0x02) | SW_DATATYPE_LE(0x03);
+
+	rkcsi_write(csi_dev, CSI2HOST_N_LANES, lanes - 1);
+	rkcsi_write(csi_dev, CSI2HOST_CONTROL, control);
+	rkcsi_write(csi_dev, CSI2HOST_CSI2_RESETN, 1);
+
+	ret = phy_power_on(csi_dev->phy);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static void rkcsi_stop(struct rkcsi_device *csi_dev)
+{
+	phy_power_off(csi_dev->phy);
+
+	rkcsi_write(csi_dev, CSI2HOST_CSI2_RESETN, 0);
+	rkcsi_write(csi_dev, CSI2HOST_MSK1, ~0);
+	rkcsi_write(csi_dev, CSI2HOST_MSK2, ~0);
+}
+
+static const struct media_entity_operations rkcsi_media_ops = {
+	.link_validate = v4l2_subdev_link_validate,
+};
+
+static int rkcsi_enum_mbus_code(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *sd_state,
+				struct v4l2_subdev_mbus_code_enum *code)
+{
+	struct rkcsi_device *csi_dev = to_rkcsi(sd);
+
+	if (code->pad == RKCSI_PAD_SRC) {
+		const struct v4l2_mbus_framefmt *sink_fmt;
+
+		if (code->index)
+			return -EINVAL;
+
+		sink_fmt = v4l2_subdev_state_get_format(sd_state,
+							RKCSI_PAD_SINK);
+		code->code = sink_fmt->code;
+
+		return 0;
+	} else if (code->pad == RKCSI_PAD_SINK) {
+		if (code->index > csi_dev->formats_num)
+			return -EINVAL;
+
+		code->code = csi_dev->formats[code->index].code;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static int rkcsi_set_fmt(struct v4l2_subdev *sd,
+			 struct v4l2_subdev_state *state,
+			 struct v4l2_subdev_format *format)
+{
+	struct rkcsi_device *csi_dev = to_rkcsi(sd);
+	const struct rkcsi_format *fmt;
+	struct v4l2_mbus_framefmt *sink, *src;
+
+	/* the format on the source pad always matches the sink pad */
+	if (format->pad == RKCSI_PAD_SRC)
+		return v4l2_subdev_get_fmt(sd, state, format);
+
+	sink = v4l2_subdev_state_get_format(state, format->pad, format->stream);
+	if (!sink)
+		return -EINVAL;
+
+	fmt = rkcsi_find_format(csi_dev, format->format.code);
+	if (fmt)
+		*sink = format->format;
+	else
+		*sink = default_format;
+
+	/* propagate the format to the source pad */
+	src = v4l2_subdev_state_get_opposite_stream_format(state, format->pad,
+							   format->stream);
+	if (!src)
+		return -EINVAL;
+
+	*src = *sink;
+
+	return 0;
+}
+
+static int rkcsi_set_routing(struct v4l2_subdev *sd,
+			     struct v4l2_subdev_state *state,
+			     enum v4l2_subdev_format_whence which,
+			     struct v4l2_subdev_krouting *routing)
+{
+	int ret;
+
+	ret = v4l2_subdev_routing_validate(sd, routing,
+					   V4L2_SUBDEV_ROUTING_ONLY_1_TO_1);
+	if (ret)
+		return ret;
+
+	ret = v4l2_subdev_set_routing_with_fmt(sd, state, routing,
+					       &default_format);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int rkcsi_enable_streams(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *state, u32 pad,
+				u64 streams_mask)
+{
+	struct rkcsi_device *csi_dev = to_rkcsi(sd);
+	struct v4l2_subdev *remote_sd;
+	struct media_pad *sink_pad, *remote_pad;
+	struct device *dev = csi_dev->dev;
+	u64 mask;
+	int ret;
+
+	sink_pad = &sd->entity.pads[RKCSI_PAD_SINK];
+	remote_pad = media_pad_remote_pad_first(sink_pad);
+	remote_sd = media_entity_to_v4l2_subdev(remote_pad->entity);
+
+	mask = v4l2_subdev_state_xlate_streams(state, RKCSI_PAD_SINK,
+					       RKCSI_PAD_SRC, &streams_mask);
+
+	ret = pm_runtime_resume_and_get(dev);
+	if (ret)
+		goto err;
+
+	ret = rkcsi_start(csi_dev);
+	if (ret) {
+		dev_err(dev, "failed to enable CSI hardware\n");
+		goto err_pm_runtime_put;
+	}
+
+	ret = v4l2_subdev_enable_streams(remote_sd, remote_pad->index, mask);
+	if (ret)
+		goto err_csi_stop;
+
+	return 0;
+
+err_csi_stop:
+	rkcsi_stop(csi_dev);
+err_pm_runtime_put:
+	pm_runtime_put_sync(dev);
+err:
+	return ret;
+}
+
+static int rkcsi_disable_streams(struct v4l2_subdev *sd,
+				 struct v4l2_subdev_state *state, u32 pad,
+				 u64 streams_mask)
+{
+	struct rkcsi_device *csi_dev = to_rkcsi(sd);
+	struct v4l2_subdev *remote_sd;
+	struct media_pad *sink_pad, *remote_pad;
+	struct device *dev = csi_dev->dev;
+	u64 mask;
+	int ret;
+
+	sink_pad = &sd->entity.pads[RKCSI_PAD_SINK];
+	remote_pad = media_pad_remote_pad_first(sink_pad);
+	remote_sd = media_entity_to_v4l2_subdev(remote_pad->entity);
+
+	mask = v4l2_subdev_state_xlate_streams(state, RKCSI_PAD_SINK,
+					       RKCSI_PAD_SRC, &streams_mask);
+
+	ret = v4l2_subdev_disable_streams(remote_sd, remote_pad->index, mask);
+
+	rkcsi_stop(csi_dev);
+
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
+
+	return ret;
+}
+
+static const struct v4l2_subdev_pad_ops rkcsi_pad_ops = {
+	.enum_mbus_code = rkcsi_enum_mbus_code,
+	.get_fmt = v4l2_subdev_get_fmt,
+	.set_fmt = rkcsi_set_fmt,
+	.set_routing = rkcsi_set_routing,
+	.enable_streams = rkcsi_enable_streams,
+	.disable_streams = rkcsi_disable_streams,
+};
+
+static const struct v4l2_subdev_ops rkcsi_ops = {
+	.pad = &rkcsi_pad_ops,
+};
+
+static int rkcsi_init_state(struct v4l2_subdev *sd,
+			    struct v4l2_subdev_state *state)
+{
+	struct v4l2_subdev_route routes[] = {
+		{
+			.sink_pad = RKCSI_PAD_SINK,
+			.sink_stream = 0,
+			.source_pad = RKCSI_PAD_SRC,
+			.source_stream = 0,
+			.flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE,
+		},
+	};
+	struct v4l2_subdev_krouting routing = {
+		.len_routes = ARRAY_SIZE(routes),
+		.num_routes = ARRAY_SIZE(routes),
+		.routes = routes,
+	};
+	int ret;
+
+	ret = v4l2_subdev_set_routing_with_fmt(sd, state, &routing,
+					       &default_format);
+
+	return ret;
+}
+
+static const struct v4l2_subdev_internal_ops rkcsi_internal_ops = {
+	.init_state = rkcsi_init_state,
+};
+
+static int rkcsi_notifier_bound(struct v4l2_async_notifier *notifier,
+				struct v4l2_subdev *sd,
+				struct v4l2_async_connection *asd)
+{
+	struct rkcsi_device *csi_dev =
+		container_of(notifier, struct rkcsi_device, notifier);
+	int source_pad;
+
+	source_pad = media_entity_get_fwnode_pad(&sd->entity, sd->fwnode,
+						 MEDIA_PAD_FL_SOURCE);
+	if (source_pad < 0) {
+		dev_err(csi_dev->dev, "failed to find source pad for %s\n",
+			sd->name);
+		return source_pad;
+	}
+
+	csi_dev->source_sd = sd;
+	csi_dev->source_pad = source_pad;
+
+	return media_create_pad_link(&sd->entity, source_pad,
+				     &csi_dev->sd.entity, RKCSI_PAD_SINK,
+				     MEDIA_LNK_FL_ENABLED);
+}
+
+static const struct v4l2_async_notifier_operations rkcsi_notifier_ops = {
+	.bound = rkcsi_notifier_bound,
+};
+
+static int rkcsi_register_notifier(struct rkcsi_device *csi_dev)
+{
+	struct v4l2_async_connection *asd;
+	struct v4l2_async_notifier *ntf = &csi_dev->notifier;
+	struct v4l2_fwnode_endpoint *vep = &csi_dev->vep;
+	struct v4l2_subdev *sd = &csi_dev->sd;
+	struct device *dev = csi_dev->dev;
+	struct fwnode_handle *ep;
+	int ret = 0;
+
+	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), 0, 0, 0);
+	if (!ep)
+		return dev_err_probe(dev, -ENODEV, "failed to get endpoint\n");
+
+	vep->bus_type = V4L2_MBUS_UNKNOWN;
+	ret = v4l2_fwnode_endpoint_parse(ep, vep);
+	if (ret) {
+		ret = dev_err_probe(dev, ret, "failed to parse endpoint\n");
+		goto out;
+	}
+
+	if (vep->bus_type != V4L2_MBUS_CSI2_DPHY &&
+	    vep->bus_type != V4L2_MBUS_CSI2_CPHY) {
+		ret = dev_err_probe(dev, -EINVAL,
+				    "invalid bus type of endpoint\n");
+		goto out;
+	}
+
+	v4l2_async_subdev_nf_init(ntf, sd);
+	ntf->ops = &rkcsi_notifier_ops;
+
+	asd = v4l2_async_nf_add_fwnode_remote(ntf, ep,
+					      struct v4l2_async_connection);
+	if (IS_ERR(asd)) {
+		ret = PTR_ERR(asd);
+		goto err_nf_cleanup;
+	}
+
+	ret = v4l2_async_nf_register(ntf);
+	if (ret) {
+		ret = dev_err_probe(dev, ret, "failed to register notifier\n");
+		goto err_nf_cleanup;
+	}
+
+	goto out;
+
+err_nf_cleanup:
+	v4l2_async_nf_cleanup(ntf);
+out:
+	fwnode_handle_put(ep);
+	return ret;
+}
+
+static int rkcsi_register(struct rkcsi_device *csi_dev)
+{
+	struct media_pad *pads = csi_dev->pads;
+	struct v4l2_subdev *sd = &csi_dev->sd;
+	int ret;
+
+	ret = rkcsi_register_notifier(csi_dev);
+	if (ret)
+		goto err;
+
+	v4l2_subdev_init(sd, &rkcsi_ops);
+	sd->dev = csi_dev->dev;
+	sd->entity.ops = &rkcsi_media_ops;
+	sd->entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_STREAMS;
+	sd->internal_ops = &rkcsi_internal_ops;
+	sd->owner = THIS_MODULE;
+	snprintf(sd->name, sizeof(sd->name), "rockchip-mipi-csi %s",
+		 dev_name(csi_dev->dev));
+
+	pads[RKCSI_PAD_SINK].flags = MEDIA_PAD_FL_SINK |
+				     MEDIA_PAD_FL_MUST_CONNECT;
+	pads[RKCSI_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE;
+	ret = media_entity_pads_init(&sd->entity, RKCSI_PAD_MAX, pads);
+	if (ret)
+		goto err_notifier_unregister;
+
+	ret = v4l2_subdev_init_finalize(sd);
+	if (ret)
+		goto err_entity_cleanup;
+
+	ret = v4l2_async_register_subdev(sd);
+	if (ret) {
+		dev_err(sd->dev, "failed to register CSI subdev\n");
+		goto err_subdev_cleanup;
+	}
+
+	return 0;
+
+err_subdev_cleanup:
+	v4l2_subdev_cleanup(sd);
+err_entity_cleanup:
+	media_entity_cleanup(&sd->entity);
+err_notifier_unregister:
+	v4l2_async_nf_unregister(&csi_dev->notifier);
+	v4l2_async_nf_cleanup(&csi_dev->notifier);
+err:
+	return ret;
+}
+
+static void rkcsi_unregister(struct rkcsi_device *csi_dev)
+{
+	struct v4l2_subdev *sd = &csi_dev->sd;
+
+	v4l2_async_unregister_subdev(sd);
+	v4l2_subdev_cleanup(sd);
+	media_entity_cleanup(&sd->entity);
+	v4l2_async_nf_unregister(&csi_dev->notifier);
+	v4l2_async_nf_cleanup(&csi_dev->notifier);
+}
+
+static const struct of_device_id rkcsi_of_match[] = {
+	{
+		.compatible = "rockchip,rk3568-mipi-csi",
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, rkcsi_of_match);
+
+static int rkcsi_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rkcsi_device *csi_dev;
+	int ret;
+
+	csi_dev = devm_kzalloc(dev, sizeof(*csi_dev), GFP_KERNEL);
+	if (!csi_dev)
+		return -ENOMEM;
+	csi_dev->dev = dev;
+	dev_set_drvdata(dev, csi_dev);
+
+	csi_dev->base_addr = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(csi_dev->base_addr))
+		return PTR_ERR(csi_dev->base_addr);
+
+	ret = devm_clk_bulk_get_all(dev, &csi_dev->clks);
+	if (ret != RKCSI_CLKS_MAX)
+		return dev_err_probe(dev, -ENODEV, "failed to get clocks\n");
+	csi_dev->clks_num = ret;
+
+	csi_dev->phy = devm_phy_get(dev, NULL);
+	if (IS_ERR(csi_dev->phy))
+		return dev_err_probe(dev, PTR_ERR(csi_dev->phy),
+				     "failed to get MIPI CSI PHY\n");
+
+	csi_dev->reset = devm_reset_control_get_exclusive(dev, NULL);
+	if (IS_ERR(csi_dev->reset))
+		return dev_err_probe(dev, PTR_ERR(csi_dev->reset),
+				     "failed to get reset\n");
+
+	csi_dev->formats = formats;
+	csi_dev->formats_num = ARRAY_SIZE(formats);
+
+	pm_runtime_enable(dev);
+
+	ret = phy_init(csi_dev->phy);
+	if (ret) {
+		ret = dev_err_probe(dev, ret,
+				    "failed to initialize MIPI CSI PHY\n");
+		goto err_pm_runtime_disable;
+	}
+
+	ret = rkcsi_register(csi_dev);
+	if (ret)
+		goto err_phy_exit;
+
+	return 0;
+
+err_phy_exit:
+	phy_exit(csi_dev->phy);
+err_pm_runtime_disable:
+	pm_runtime_disable(dev);
+	return ret;
+}
+
+static void rkcsi_remove(struct platform_device *pdev)
+{
+	struct rkcsi_device *csi_dev = platform_get_drvdata(pdev);
+	struct device *dev = &pdev->dev;
+
+	rkcsi_unregister(csi_dev);
+	phy_exit(csi_dev->phy);
+	pm_runtime_disable(dev);
+}
+
+static int rkcsi_runtime_suspend(struct device *dev)
+{
+	struct rkcsi_device *csi_dev = dev_get_drvdata(dev);
+
+	clk_bulk_disable_unprepare(csi_dev->clks_num, csi_dev->clks);
+
+	return 0;
+}
+
+static int rkcsi_runtime_resume(struct device *dev)
+{
+	struct rkcsi_device *csi_dev = dev_get_drvdata(dev);
+	int ret;
+
+	reset_control_assert(csi_dev->reset);
+	udelay(5);
+	reset_control_deassert(csi_dev->reset);
+
+	ret = clk_bulk_prepare_enable(csi_dev->clks_num, csi_dev->clks);
+	if (ret) {
+		dev_err(dev, "failed to enable clocks\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct dev_pm_ops rkcsi_pm_ops = {
+	.runtime_suspend = rkcsi_runtime_suspend,
+	.runtime_resume = rkcsi_runtime_resume,
+};
+
+static struct platform_driver rkcsi_drv = {
+	.driver = {
+		   .name = "rockchip-mipi-csi",
+		   .of_match_table = rkcsi_of_match,
+		   .pm = &rkcsi_pm_ops,
+	},
+	.probe = rkcsi_probe,
+	.remove = rkcsi_remove,
+};
+module_platform_driver(rkcsi_drv);
+
+MODULE_DESCRIPTION("Rockchip MIPI CSI-2 Receiver platform driver");
+MODULE_LICENSE("GPL");

-- 
2.39.5

[PATCH v12 07/18] media: rockchip: add driver for the rockchip camera interface

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add the skeleton for a media controller centric V4L2 driver for the
Rockchip Camera Interface (CIF).
The skeleton features support for the PX30 Video Input Processor (VIP)
and the RK3568 Video Capture (VICAP) unit.

Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 MAINTAINERS                                        |   1 +
 drivers/media/platform/rockchip/Kconfig            |   1 +
 drivers/media/platform/rockchip/Makefile           |   1 +
 drivers/media/platform/rockchip/rkcif/Kconfig      |  18 ++
 drivers/media/platform/rockchip/rkcif/Makefile     |   4 +
 .../media/platform/rockchip/rkcif/rkcif-common.h   |  55 +++++
 drivers/media/platform/rockchip/rkcif/rkcif-dev.c  | 262 +++++++++++++++++++++
 7 files changed, 342 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index d7c3f5ad50ad..2ff7dc228572 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22218,6 +22218,7 @@ S:	Maintained
 F:	Documentation/admin-guide/media/rkcif*
 F:	Documentation/devicetree/bindings/media/rockchip,px30-vip.yaml
 F:	Documentation/devicetree/bindings/media/rockchip,rk3568-vicap.yaml
+F:	drivers/media/platform/rockchip/rkcif/
 
 ROCKCHIP CRYPTO DRIVERS
 M:	Corentin Labbe <clabbe@baylibre.com>
diff --git a/drivers/media/platform/rockchip/Kconfig b/drivers/media/platform/rockchip/Kconfig
index 2f6f77afecfc..54b698c4cd2c 100644
--- a/drivers/media/platform/rockchip/Kconfig
+++ b/drivers/media/platform/rockchip/Kconfig
@@ -3,6 +3,7 @@
 comment "Rockchip media platform drivers"
 
 source "drivers/media/platform/rockchip/rga/Kconfig"
+source "drivers/media/platform/rockchip/rkcif/Kconfig"
 source "drivers/media/platform/rockchip/rkcsi/Kconfig"
 source "drivers/media/platform/rockchip/rkisp1/Kconfig"
 source "drivers/media/platform/rockchip/rkvdec/Kconfig"
diff --git a/drivers/media/platform/rockchip/Makefile b/drivers/media/platform/rockchip/Makefile
index 33e24b47735c..522a7d3e30b0 100644
--- a/drivers/media/platform/rockchip/Makefile
+++ b/drivers/media/platform/rockchip/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-y += rga/
+obj-y += rkcif/
 obj-y += rkcsi/
 obj-y += rkisp1/
 obj-y += rkvdec/
diff --git a/drivers/media/platform/rockchip/rkcif/Kconfig b/drivers/media/platform/rockchip/rkcif/Kconfig
new file mode 100644
index 000000000000..efd82ac35bd8
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/Kconfig
@@ -0,0 +1,18 @@
+config VIDEO_ROCKCHIP_CIF
+	tristate "Rockchip Camera Interface (CIF)"
+	depends on VIDEO_DEV
+	depends on ARCH_ROCKCHIP || COMPILE_TEST
+	depends on V4L_PLATFORM_DRIVERS
+	depends on PM && COMMON_CLK
+	select MEDIA_CONTROLLER
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
+	select VIDEO_V4L2_SUBDEV_API
+	help
+	  This is a driver for Rockchip Camera Interface (CIF). It is featured
+	  in many Rockchips SoCs in different variations, such as the PX30
+	  Video Input Processor (VIP, one Digital Video Port (DVP)) or the
+	  RK3568 Video Capture (VICAP, one DVP, one MIPI CSI-2 receiver) unit.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called rockchip-cif.
diff --git a/drivers/media/platform/rockchip/rkcif/Makefile b/drivers/media/platform/rockchip/rkcif/Makefile
new file mode 100644
index 000000000000..c6837ed2f65c
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_VIDEO_ROCKCHIP_CIF) += rockchip-cif.o
+
+rockchip-cif-objs += rkcif-dev.o
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-common.h b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
new file mode 100644
index 000000000000..b456a56b5ac4
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2023 Mehdi Djait <mehdi.djait@bootlin.com>
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#ifndef _RKCIF_COMMON_H
+#define _RKCIF_COMMON_H
+
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+
+#include <media/media-device.h>
+#include <media/media-entity.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-subdev.h>
+#include <media/videobuf2-v4l2.h>
+
+#define RKCIF_DRIVER_NAME "rockchip-cif"
+#define RKCIF_CLK_MAX	  4
+
+struct rkcif_remote {
+	struct v4l2_async_connection async_conn;
+	struct v4l2_subdev *sd;
+};
+
+struct rkcif_match_data {
+	const char *const *clks;
+	unsigned int clks_num;
+};
+
+struct rkcif_device {
+	struct device *dev;
+
+	const struct rkcif_match_data *match_data;
+	struct clk_bulk_data clks[RKCIF_CLK_MAX];
+	unsigned int clks_num;
+	struct regmap *grf;
+	struct reset_control *reset;
+	void __iomem *base_addr;
+
+	struct media_device media_dev;
+	struct v4l2_device v4l2_dev;
+	struct v4l2_async_notifier notifier;
+};
+
+#endif
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
new file mode 100644
index 000000000000..9215dbe90353
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
@@ -0,0 +1,262 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2020 Maxime Chevallier <maxime.chevallier@bootlin.com>
+ * Copyright (C) 2023 Mehdi Djait <mehdi.djait@bootlin.com>
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-mc.h>
+
+#include "rkcif-common.h"
+
+static const char *const px30_vip_clks[] = {
+	"aclk",
+	"hclk",
+	"pclk",
+};
+
+static const struct rkcif_match_data px30_vip_match_data = {
+	.clks = px30_vip_clks,
+	.clks_num = ARRAY_SIZE(px30_vip_clks),
+};
+
+static const char *const rk3568_vicap_clks[] = {
+	"aclk",
+	"hclk",
+	"dclk",
+	"iclk",
+};
+
+static const struct rkcif_match_data rk3568_vicap_match_data = {
+	.clks = rk3568_vicap_clks,
+	.clks_num = ARRAY_SIZE(rk3568_vicap_clks),
+};
+
+static const struct of_device_id rkcif_plat_of_match[] = {
+	{
+		.compatible = "rockchip,px30-vip",
+		.data = &px30_vip_match_data,
+	},
+	{
+		.compatible = "rockchip,rk3568-vicap",
+		.data = &rk3568_vicap_match_data,
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, rkcif_plat_of_match);
+
+static int rkcif_register(struct rkcif_device *rkcif)
+{
+	return 0;
+}
+
+static void rkcif_unregister(struct rkcif_device *rkcif)
+{
+}
+
+static int rkcif_notifier_bound(struct v4l2_async_notifier *notifier,
+				struct v4l2_subdev *sd,
+				struct v4l2_async_connection *asd)
+{
+	struct rkcif_remote *remote =
+		container_of(asd, struct rkcif_remote, async_conn);
+
+	remote->sd = sd;
+
+	return 0;
+}
+
+static int rkcif_notifier_complete(struct v4l2_async_notifier *notifier)
+{
+	struct rkcif_device *rkcif =
+		container_of(notifier, struct rkcif_device, notifier);
+
+	return v4l2_device_register_subdev_nodes(&rkcif->v4l2_dev);
+}
+
+static const struct v4l2_async_notifier_operations rkcif_notifier_ops = {
+	.bound = rkcif_notifier_bound,
+	.complete = rkcif_notifier_complete,
+};
+
+static irqreturn_t rkcif_isr(int irq, void *ctx)
+{
+	irqreturn_t ret = IRQ_NONE;
+
+	return ret;
+}
+
+static int rkcif_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rkcif_device *rkcif;
+	int ret, irq;
+
+	rkcif = devm_kzalloc(dev, sizeof(*rkcif), GFP_KERNEL);
+	if (!rkcif)
+		return -ENOMEM;
+
+	rkcif->match_data = of_device_get_match_data(dev);
+	if (!rkcif->match_data)
+		return -ENODEV;
+
+	dev_set_drvdata(dev, rkcif);
+	rkcif->dev = dev;
+
+	rkcif->base_addr = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(rkcif->base_addr))
+		return PTR_ERR(rkcif->base_addr);
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_irq(dev, irq, rkcif_isr, IRQF_SHARED,
+			       dev_driver_string(dev), dev);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to request irq\n");
+
+	if (rkcif->match_data->clks_num > RKCIF_CLK_MAX)
+		return dev_err_probe(dev, -EINVAL, "invalid number of clocks\n");
+
+	rkcif->clks_num = rkcif->match_data->clks_num;
+	for (unsigned int i = 0; i < rkcif->clks_num; i++)
+		rkcif->clks[i].id = rkcif->match_data->clks[i];
+	ret = devm_clk_bulk_get(dev, rkcif->clks_num, rkcif->clks);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to get clocks\n");
+
+	rkcif->reset = devm_reset_control_array_get_exclusive(dev);
+	if (IS_ERR(rkcif->reset))
+		return PTR_ERR(rkcif->reset);
+
+	rkcif->grf = syscon_regmap_lookup_by_phandle(dev->of_node,
+						     "rockchip,grf");
+	if (IS_ERR(rkcif->grf))
+		rkcif->grf = NULL;
+
+	pm_runtime_enable(&pdev->dev);
+
+	rkcif->media_dev.dev = dev;
+	strscpy(rkcif->media_dev.model, RKCIF_DRIVER_NAME,
+		sizeof(rkcif->media_dev.model));
+	media_device_init(&rkcif->media_dev);
+
+	rkcif->v4l2_dev.mdev = &rkcif->media_dev;
+	ret = v4l2_device_register(dev, &rkcif->v4l2_dev);
+	if (ret)
+		goto err_media_dev_cleanup;
+
+	ret = media_device_register(&rkcif->media_dev);
+	if (ret < 0) {
+		dev_err(dev, "failed to register media device: %d\n", ret);
+		goto err_v4l2_dev_unregister;
+	}
+
+	v4l2_async_nf_init(&rkcif->notifier, &rkcif->v4l2_dev);
+	rkcif->notifier.ops = &rkcif_notifier_ops;
+
+	ret = rkcif_register(rkcif);
+	if (ret) {
+		dev_err(dev, "failed to register media entities: %d\n", ret);
+		goto err_notifier_cleanup;
+	}
+
+	ret = v4l2_async_nf_register(&rkcif->notifier);
+	if (ret)
+		goto err_rkcif_unregister;
+
+	return 0;
+
+err_rkcif_unregister:
+	rkcif_unregister(rkcif);
+err_notifier_cleanup:
+	v4l2_async_nf_cleanup(&rkcif->notifier);
+	media_device_unregister(&rkcif->media_dev);
+err_v4l2_dev_unregister:
+	v4l2_device_unregister(&rkcif->v4l2_dev);
+err_media_dev_cleanup:
+	media_device_cleanup(&rkcif->media_dev);
+	pm_runtime_disable(&pdev->dev);
+	return ret;
+}
+
+static void rkcif_remove(struct platform_device *pdev)
+{
+	struct rkcif_device *rkcif = platform_get_drvdata(pdev);
+
+	v4l2_async_nf_unregister(&rkcif->notifier);
+	rkcif_unregister(rkcif);
+	v4l2_async_nf_cleanup(&rkcif->notifier);
+	media_device_unregister(&rkcif->media_dev);
+	v4l2_device_unregister(&rkcif->v4l2_dev);
+	media_device_cleanup(&rkcif->media_dev);
+	pm_runtime_disable(&pdev->dev);
+}
+
+static int rkcif_runtime_suspend(struct device *dev)
+{
+	struct rkcif_device *rkcif = dev_get_drvdata(dev);
+
+	/*
+	 * Reset CIF (CRU, DMA, FIFOs) to allow a clean resume.
+	 * Since this resets the IOMMU too, we cannot issue this reset when
+	 * resuming.
+	 */
+	reset_control_assert(rkcif->reset);
+	udelay(5);
+	reset_control_deassert(rkcif->reset);
+
+	clk_bulk_disable_unprepare(rkcif->clks_num, rkcif->clks);
+
+	return 0;
+}
+
+static int rkcif_runtime_resume(struct device *dev)
+{
+	struct rkcif_device *rkcif = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_bulk_prepare_enable(rkcif->clks_num, rkcif->clks);
+	if (ret) {
+		dev_err(dev, "failed to enable clocks\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct dev_pm_ops rkcif_plat_pm_ops = {
+	.runtime_suspend = rkcif_runtime_suspend,
+	.runtime_resume = rkcif_runtime_resume,
+};
+
+static struct platform_driver rkcif_plat_drv = {
+	.driver = {
+		   .name = RKCIF_DRIVER_NAME,
+		   .of_match_table = rkcif_plat_of_match,
+		   .pm = &rkcif_plat_pm_ops,
+	},
+	.probe = rkcif_probe,
+	.remove = rkcif_remove,
+};
+module_platform_driver(rkcif_plat_drv);
+
+MODULE_DESCRIPTION("Rockchip Camera Interface (CIF) platform driver");
+MODULE_LICENSE("GPL");

-- 
2.39.5

[PATCH v12 08/18] media: rockchip: rkcif: add abstraction for interface and crop blocks

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add an abstraction for the INTERFACE and CROP parts of the different
Rockchip Camera Interface (CIF) variants. These parts are represented
as V4L2 subdevice with one sink pad and one source pad. The sink pad
is connected to a subdevice: either the subdevice provided by the
driver of the companion chip connected to the DVP, or the subdevice
provided by the MIPI CSI-2 receiver. The source pad is connected to
V4l2 device(s) provided by one or many instance(s) of the DMA
abstraction.

Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 drivers/media/platform/rockchip/rkcif/Makefile     |   1 +
 .../media/platform/rockchip/rkcif/rkcif-common.h   |  71 ++++
 drivers/media/platform/rockchip/rkcif/rkcif-dev.c  |  13 +
 .../platform/rockchip/rkcif/rkcif-interface.c      | 389 +++++++++++++++++++++
 .../platform/rockchip/rkcif/rkcif-interface.h      |  31 ++
 5 files changed, 505 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkcif/Makefile b/drivers/media/platform/rockchip/rkcif/Makefile
index c6837ed2f65c..9d535fc27e51 100644
--- a/drivers/media/platform/rockchip/rkcif/Makefile
+++ b/drivers/media/platform/rockchip/rkcif/Makefile
@@ -2,3 +2,4 @@
 obj-$(CONFIG_VIDEO_ROCKCHIP_CIF) += rockchip-cif.o
 
 rockchip-cif-objs += rkcif-dev.o
+rockchip-cif-objs += rkcif-interface.o
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-common.h b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
index b456a56b5ac4..f01536727a5d 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-common.h
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
@@ -27,9 +27,78 @@
 #define RKCIF_DRIVER_NAME "rockchip-cif"
 #define RKCIF_CLK_MAX	  4
 
+enum rkcif_format_type {
+	RKCIF_FMT_TYPE_INVALID,
+	RKCIF_FMT_TYPE_YUV,
+	RKCIF_FMT_TYPE_RAW,
+};
+
+enum rkcif_interface_index {
+	RKCIF_DVP,
+	RKCIF_MIPI_BASE,
+	RKCIF_MIPI1 = RKCIF_MIPI_BASE,
+	RKCIF_MIPI2,
+	RKCIF_MIPI3,
+	RKCIF_MIPI4,
+	RKCIF_MIPI5,
+	RKCIF_MIPI6,
+	RKCIF_MIPI_MAX,
+	RKCIF_IF_MAX = RKCIF_MIPI_MAX
+};
+
+enum rkcif_interface_pad_index {
+	RKCIF_IF_PAD_SINK,
+	RKCIF_IF_PAD_SRC,
+	RKCIF_IF_PAD_MAX
+};
+
+enum rkcif_interface_status {
+	RKCIF_IF_INACTIVE,
+	RKCIF_IF_ACTIVE,
+};
+
+enum rkcif_interface_type {
+	RKCIF_IF_INVALID,
+	RKCIF_IF_DVP,
+	RKCIF_IF_MIPI,
+};
+
+struct rkcif_input_fmt {
+	u32 mbus_code;
+
+	enum rkcif_format_type fmt_type;
+	enum v4l2_field field;
+};
+
+struct rkcif_interface;
+
 struct rkcif_remote {
 	struct v4l2_async_connection async_conn;
 	struct v4l2_subdev *sd;
+
+	struct rkcif_interface *interface;
+};
+
+struct rkcif_dvp {
+	u32 dvp_clk_delay;
+};
+
+struct rkcif_interface {
+	enum rkcif_interface_type type;
+	enum rkcif_interface_status status;
+	enum rkcif_interface_index index;
+	struct rkcif_device *rkcif;
+	struct rkcif_remote *remote;
+	const struct rkcif_input_fmt *in_fmts;
+	unsigned int in_fmts_num;
+
+	struct media_pad pads[RKCIF_IF_PAD_MAX];
+	struct v4l2_fwnode_endpoint vep;
+	struct v4l2_subdev sd;
+
+	union {
+		struct rkcif_dvp dvp;
+	};
 };
 
 struct rkcif_match_data {
@@ -47,6 +116,8 @@ struct rkcif_device {
 	struct reset_control *reset;
 	void __iomem *base_addr;
 
+	struct rkcif_interface interfaces[RKCIF_IF_MAX];
+
 	struct media_device media_dev;
 	struct v4l2_device v4l2_dev;
 	struct v4l2_async_notifier notifier;
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
index 9215dbe90353..49e53f70715c 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
@@ -74,8 +74,21 @@ static int rkcif_notifier_bound(struct v4l2_async_notifier *notifier,
 				struct v4l2_subdev *sd,
 				struct v4l2_async_connection *asd)
 {
+	struct rkcif_device *rkcif =
+		container_of(notifier, struct rkcif_device, notifier);
 	struct rkcif_remote *remote =
 		container_of(asd, struct rkcif_remote, async_conn);
+	struct media_pad *sink_pad =
+		&remote->interface->pads[RKCIF_IF_PAD_SINK];
+	int ret;
+
+	ret = v4l2_create_fwnode_links_to_pad(sd, sink_pad,
+					      MEDIA_LNK_FL_ENABLED);
+	if (ret) {
+		dev_err(rkcif->dev, "failed to link source pad of %s\n",
+			sd->name);
+		return ret;
+	}
 
 	remote->sd = sd;
 
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-interface.c b/drivers/media/platform/rockchip/rkcif/rkcif-interface.c
new file mode 100644
index 000000000000..9cea9060ce02
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-interface.c
@@ -0,0 +1,389 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-subdev.h>
+
+#include "rkcif-common.h"
+#include "rkcif-interface.h"
+
+static inline struct rkcif_interface *to_rkcif_interface(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct rkcif_interface, sd);
+}
+
+static const struct media_entity_operations rkcif_interface_media_ops = {
+	.link_validate = v4l2_subdev_link_validate,
+	.has_pad_interdep = v4l2_subdev_has_pad_interdep,
+};
+
+static int rkcif_interface_set_fmt(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_state *state,
+				   struct v4l2_subdev_format *format)
+{
+	struct rkcif_interface *interface = to_rkcif_interface(sd);
+	const struct rkcif_input_fmt *input;
+	struct v4l2_mbus_framefmt *sink, *src;
+
+	/* the format on the source pad always matches the sink pad */
+	if (format->pad == RKCIF_IF_PAD_SRC)
+		return v4l2_subdev_get_fmt(sd, state, format);
+
+	input = rkcif_interface_find_input_fmt(interface, true,
+					       format->format.code);
+	format->format.code = input->mbus_code;
+
+	sink = v4l2_subdev_state_get_format(state, format->pad, format->stream);
+	if (!sink)
+		return -EINVAL;
+
+	*sink = format->format;
+
+	/* propagate the format to the source pad */
+	src = v4l2_subdev_state_get_opposite_stream_format(state, format->pad,
+							   format->stream);
+	if (!src)
+		return -EINVAL;
+
+	*src = *sink;
+
+	return 0;
+}
+
+static int rkcif_interface_get_sel(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_state *state,
+				   struct v4l2_subdev_selection *sel)
+{
+	struct v4l2_mbus_framefmt *sink;
+	struct v4l2_rect *crop;
+	int ret = 0;
+
+	if (sel->pad != RKCIF_IF_PAD_SRC)
+		return -EINVAL;
+
+	sink = v4l2_subdev_state_get_opposite_stream_format(state, sel->pad,
+							    sel->stream);
+	if (!sink)
+		return -EINVAL;
+
+	crop = v4l2_subdev_state_get_crop(state, sel->pad, sel->stream);
+	if (!crop)
+		return -EINVAL;
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		sel->r.left = 0;
+		sel->r.top = 0;
+		sel->r.width = sink->width;
+		sel->r.height = sink->height;
+		break;
+	case V4L2_SEL_TGT_CROP:
+		sel->r = *crop;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int rkcif_interface_set_sel(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_state *state,
+				   struct v4l2_subdev_selection *sel)
+{
+	struct v4l2_mbus_framefmt *sink, *src;
+	struct v4l2_rect *crop;
+
+	if (sel->pad != RKCIF_IF_PAD_SRC || sel->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	sink = v4l2_subdev_state_get_opposite_stream_format(state, sel->pad,
+							    sel->stream);
+	if (!sink)
+		return -EINVAL;
+
+	src = v4l2_subdev_state_get_format(state, sel->pad, sel->stream);
+	if (!src)
+		return -EINVAL;
+
+	crop = v4l2_subdev_state_get_crop(state, sel->pad, sel->stream);
+	if (!crop)
+		return -EINVAL;
+
+	/* only starting point of crop can be specified */
+	sel->r.height = sink->height - sel->r.top;
+	sel->r.width = sink->width - sel->r.left;
+	*crop = sel->r;
+
+	src->height = sel->r.height;
+	src->width = sel->r.width;
+
+	return 0;
+}
+
+static int rkcif_interface_set_routing(struct v4l2_subdev *sd,
+				       struct v4l2_subdev_state *state,
+				       enum v4l2_subdev_format_whence which,
+				       struct v4l2_subdev_krouting *routing)
+{
+	int ret;
+
+	ret = v4l2_subdev_routing_validate(sd, routing,
+					   V4L2_SUBDEV_ROUTING_ONLY_1_TO_1);
+	if (ret)
+		return ret;
+
+	ret = v4l2_subdev_set_routing(sd, state, routing);
+
+	return ret;
+}
+
+static int rkcif_interface_enable_streams(struct v4l2_subdev *sd,
+					  struct v4l2_subdev_state *state,
+					  u32 pad, u64 streams_mask)
+{
+	struct v4l2_subdev *remote_sd;
+	struct media_pad *remote_pad;
+	u64 mask;
+
+	remote_pad =
+		media_pad_remote_pad_first(&sd->entity.pads[RKCIF_IF_PAD_SINK]);
+	remote_sd = media_entity_to_v4l2_subdev(remote_pad->entity);
+
+	mask = v4l2_subdev_state_xlate_streams(state, RKCIF_IF_PAD_SINK,
+					       RKCIF_IF_PAD_SRC, &streams_mask);
+
+	return v4l2_subdev_enable_streams(remote_sd, remote_pad->index, mask);
+}
+
+static int rkcif_interface_disable_streams(struct v4l2_subdev *sd,
+					   struct v4l2_subdev_state *state,
+					   u32 pad, u64 streams_mask)
+{
+	struct v4l2_subdev *remote_sd;
+	struct media_pad *remote_pad;
+	u64 mask;
+
+	remote_pad =
+		media_pad_remote_pad_first(&sd->entity.pads[RKCIF_IF_PAD_SINK]);
+	remote_sd = media_entity_to_v4l2_subdev(remote_pad->entity);
+
+	mask = v4l2_subdev_state_xlate_streams(state, RKCIF_IF_PAD_SINK,
+					       RKCIF_IF_PAD_SRC, &streams_mask);
+
+	return v4l2_subdev_disable_streams(remote_sd, remote_pad->index, mask);
+}
+
+static const struct v4l2_subdev_pad_ops rkcif_interface_pad_ops = {
+	.get_fmt = v4l2_subdev_get_fmt,
+	.set_fmt = rkcif_interface_set_fmt,
+	.get_selection = rkcif_interface_get_sel,
+	.set_selection = rkcif_interface_set_sel,
+	.set_routing = rkcif_interface_set_routing,
+	.enable_streams = rkcif_interface_enable_streams,
+	.disable_streams = rkcif_interface_disable_streams,
+};
+
+static const struct v4l2_subdev_ops rkcif_interface_ops = {
+	.pad = &rkcif_interface_pad_ops,
+};
+
+static int rkcif_interface_init_state(struct v4l2_subdev *sd,
+				      struct v4l2_subdev_state *state)
+{
+	struct rkcif_interface *interface = to_rkcif_interface(sd);
+	struct v4l2_subdev_route routes[] = {
+		{
+			.sink_pad = RKCIF_IF_PAD_SINK,
+			.sink_stream = 0,
+			.source_pad = RKCIF_IF_PAD_SRC,
+			.source_stream = 0,
+			.flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE,
+		},
+	};
+	struct v4l2_subdev_krouting routing = {
+		.len_routes = ARRAY_SIZE(routes),
+		.num_routes = ARRAY_SIZE(routes),
+		.routes = routes,
+	};
+	const struct v4l2_mbus_framefmt dvp_default_format = {
+		.width = 3840,
+		.height = 2160,
+		.code = MEDIA_BUS_FMT_YUYV8_1X16,
+		.field = V4L2_FIELD_NONE,
+		.colorspace = V4L2_COLORSPACE_REC709,
+		.ycbcr_enc = V4L2_YCBCR_ENC_709,
+		.quantization = V4L2_QUANTIZATION_LIM_RANGE,
+		.xfer_func = V4L2_XFER_FUNC_NONE,
+	};
+	const struct v4l2_mbus_framefmt mipi_default_format = {
+		.width = 3840,
+		.height = 2160,
+		.code = MEDIA_BUS_FMT_SRGGB10_1X10,
+		.field = V4L2_FIELD_NONE,
+		.colorspace = V4L2_COLORSPACE_RAW,
+		.ycbcr_enc = V4L2_YCBCR_ENC_601,
+		.quantization = V4L2_QUANTIZATION_FULL_RANGE,
+		.xfer_func = V4L2_XFER_FUNC_NONE,
+	};
+	const struct v4l2_mbus_framefmt *default_format;
+	int ret;
+
+	default_format = (interface->type == RKCIF_IF_DVP) ?
+				 &dvp_default_format :
+				 &mipi_default_format;
+
+	ret = v4l2_subdev_set_routing_with_fmt(sd, state, &routing,
+					       default_format);
+
+	return ret;
+}
+
+static const struct v4l2_subdev_internal_ops rkcif_interface_internal_ops = {
+	.init_state = rkcif_interface_init_state,
+};
+
+static int rkcif_interface_add(struct rkcif_interface *interface)
+{
+	struct rkcif_device *rkcif = interface->rkcif;
+	struct rkcif_remote *remote;
+	struct v4l2_async_notifier *ntf = &rkcif->notifier;
+	struct v4l2_fwnode_endpoint *vep = &interface->vep;
+	struct device *dev = rkcif->dev;
+	struct fwnode_handle *ep;
+	u32 dvp_clk_delay = 0;
+	int ret;
+
+	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), interface->index,
+					     0, 0);
+	if (!ep)
+		return -ENODEV;
+
+	vep->bus_type = V4L2_MBUS_UNKNOWN;
+	ret = v4l2_fwnode_endpoint_parse(ep, vep);
+	if (ret)
+		goto complete;
+
+	if (interface->type == RKCIF_IF_DVP) {
+		if (vep->bus_type != V4L2_MBUS_BT656 &&
+		    vep->bus_type != V4L2_MBUS_PARALLEL) {
+			ret = dev_err_probe(dev, -EINVAL,
+					    "unsupported bus type\n");
+			goto complete;
+		}
+
+		fwnode_property_read_u32(ep, "rockchip,dvp-clk-delay",
+					 &dvp_clk_delay);
+		interface->dvp.dvp_clk_delay = dvp_clk_delay;
+	}
+
+	remote = v4l2_async_nf_add_fwnode_remote(ntf, ep, struct rkcif_remote);
+	if (IS_ERR(remote)) {
+		ret = PTR_ERR(remote);
+		goto complete;
+	}
+
+	remote->interface = interface;
+	interface->remote = remote;
+	interface->status = RKCIF_IF_ACTIVE;
+	ret = 0;
+
+complete:
+	fwnode_handle_put(ep);
+
+	return ret;
+}
+
+int rkcif_interface_register(struct rkcif_device *rkcif,
+			     struct rkcif_interface *interface)
+{
+	struct media_pad *pads = interface->pads;
+	struct v4l2_subdev *sd = &interface->sd;
+	int ret;
+
+	interface->rkcif = rkcif;
+
+	v4l2_subdev_init(sd, &rkcif_interface_ops);
+	sd->dev = rkcif->dev;
+	sd->entity.ops = &rkcif_interface_media_ops;
+	sd->entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_STREAMS;
+	sd->internal_ops = &rkcif_interface_internal_ops;
+	sd->owner = THIS_MODULE;
+
+	if (interface->type == RKCIF_IF_DVP)
+		snprintf(sd->name, sizeof(sd->name), "rkcif-dvp0");
+	else if (interface->type == RKCIF_IF_MIPI)
+		snprintf(sd->name, sizeof(sd->name), "rkcif-mipi%d",
+			 interface->index - RKCIF_MIPI_BASE);
+
+	pads[RKCIF_IF_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
+	pads[RKCIF_IF_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE;
+	ret = media_entity_pads_init(&sd->entity, RKCIF_IF_PAD_MAX, pads);
+	if (ret)
+		goto err;
+
+	ret = v4l2_subdev_init_finalize(sd);
+	if (ret)
+		goto err_entity_cleanup;
+
+	ret = v4l2_device_register_subdev(&rkcif->v4l2_dev, sd);
+	if (ret) {
+		dev_err(sd->dev, "failed to register subdev\n");
+		goto err_subdev_cleanup;
+	}
+
+	ret = rkcif_interface_add(interface);
+	if (ret)
+		goto err_subdev_unregister;
+
+	return 0;
+
+err_subdev_unregister:
+	v4l2_device_unregister_subdev(sd);
+err_subdev_cleanup:
+	v4l2_subdev_cleanup(sd);
+err_entity_cleanup:
+	media_entity_cleanup(&sd->entity);
+err:
+	return ret;
+}
+
+void rkcif_interface_unregister(struct rkcif_interface *interface)
+{
+	struct v4l2_subdev *sd = &interface->sd;
+
+	if (interface->status != RKCIF_IF_ACTIVE)
+		return;
+
+	v4l2_device_unregister_subdev(sd);
+	v4l2_subdev_cleanup(sd);
+	media_entity_cleanup(&sd->entity);
+}
+
+const struct rkcif_input_fmt *
+rkcif_interface_find_input_fmt(struct rkcif_interface *interface, bool ret_def,
+			       u32 mbus_code)
+{
+	const struct rkcif_input_fmt *fmt;
+
+	WARN_ON(interface->in_fmts_num == 0);
+
+	for (unsigned int i = 0; i < interface->in_fmts_num; i++) {
+		fmt = &interface->in_fmts[i];
+		if (fmt->mbus_code == mbus_code)
+			return fmt;
+	}
+	if (ret_def)
+		return &interface->in_fmts[0];
+	else
+		return NULL;
+}
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-interface.h b/drivers/media/platform/rockchip/rkcif/rkcif-interface.h
new file mode 100644
index 000000000000..f13aa28b6fa7
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-interface.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Abstraction for the INTERFACE and CROP parts of the different CIF variants.
+ * They shall be represented as V4L2 subdevice with one sink pad and one
+ * source pad. The sink pad is connected to a subdevice: either the subdevice
+ * provided by the driver of the companion chip connected to the DVP, or the
+ * subdevice provided by the MIPI CSI-2 receiver driver. The source pad is
+ * to V4l2 device(s) provided by one or many instance(s) of the DMA
+ * abstraction.
+ *
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#ifndef _RKCIF_INTERFACE_H
+#define _RKCIF_INTERFACE_H
+
+#include "rkcif-common.h"
+
+int rkcif_interface_register(struct rkcif_device *rkcif,
+			     struct rkcif_interface *interface);
+
+void rkcif_interface_unregister(struct rkcif_interface *interface);
+
+const struct rkcif_input_fmt *
+rkcif_interface_find_input_fmt(struct rkcif_interface *interface, bool ret_def,
+			       u32 mbus_code);
+
+#endif

-- 
2.39.5

[PATCH v12 09/18] media: rockchip: rkcif: add abstraction for dma blocks

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add an abstraction for the DMA parts and the ping-pong scheme (a
double-buffering mechanism) of the different CIF variants. Each
stream is represented as V4L2 device whose corresponding media
entity has one sink pad. This sink pad is connected to an instance
of the INTERFACE/CROP abstraction.

Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 drivers/media/platform/rockchip/rkcif/Makefile     |   1 +
 .../media/platform/rockchip/rkcif/rkcif-common.h   |  67 +++
 .../platform/rockchip/rkcif/rkcif-interface.c      |  37 ++
 .../media/platform/rockchip/rkcif/rkcif-stream.c   | 638 +++++++++++++++++++++
 .../media/platform/rockchip/rkcif/rkcif-stream.h   |  32 ++
 5 files changed, 775 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkcif/Makefile b/drivers/media/platform/rockchip/rkcif/Makefile
index 9d535fc27e51..256335d95050 100644
--- a/drivers/media/platform/rockchip/rkcif/Makefile
+++ b/drivers/media/platform/rockchip/rkcif/Makefile
@@ -3,3 +3,4 @@ obj-$(CONFIG_VIDEO_ROCKCHIP_CIF) += rockchip-cif.o
 
 rockchip-cif-objs += rkcif-dev.o
 rockchip-cif-objs += rkcif-interface.o
+rockchip-cif-objs += rkcif-stream.o
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-common.h b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
index f01536727a5d..63d5b45c7afe 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-common.h
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
@@ -33,6 +33,14 @@ enum rkcif_format_type {
 	RKCIF_FMT_TYPE_RAW,
 };
 
+enum rkcif_id_index {
+	RKCIF_ID0,
+	RKCIF_ID1,
+	RKCIF_ID2,
+	RKCIF_ID3,
+	RKCIF_ID_MAX
+};
+
 enum rkcif_interface_index {
 	RKCIF_DVP,
 	RKCIF_MIPI_BASE,
@@ -63,6 +71,19 @@ enum rkcif_interface_type {
 	RKCIF_IF_MIPI,
 };
 
+struct rkcif_buffer {
+	struct vb2_v4l2_buffer vb;
+	struct list_head queue;
+	dma_addr_t buff_addr[VIDEO_MAX_PLANES];
+	bool is_dummy;
+};
+
+struct rkcif_dummy_buffer {
+	struct rkcif_buffer buffer;
+	void *vaddr;
+	u32 size;
+};
+
 struct rkcif_input_fmt {
 	u32 mbus_code;
 
@@ -70,6 +91,12 @@ struct rkcif_input_fmt {
 	enum v4l2_field field;
 };
 
+struct rkcif_output_fmt {
+	u32 fourcc;
+	u32 mbus_code;
+	u8 cplanes;
+};
+
 struct rkcif_interface;
 
 struct rkcif_remote {
@@ -79,6 +106,42 @@ struct rkcif_remote {
 	struct rkcif_interface *interface;
 };
 
+struct rkcif_stream {
+	enum rkcif_id_index id;
+	struct rkcif_device *rkcif;
+	struct rkcif_interface *interface;
+	const struct rkcif_output_fmt *out_fmts;
+	unsigned int out_fmts_num;
+
+	/* in ping-pong mode, two buffers can be provided to the HW */
+	struct rkcif_buffer *buffers[2];
+	int frame_idx;
+	int frame_phase;
+
+	/* in case of no available buffer, HW can write to the dummy buffer */
+	struct rkcif_dummy_buffer dummy;
+
+	bool stopping;
+	wait_queue_head_t wq_stopped;
+
+	/* queue of available buffers plus spinlock that protects it */
+	spinlock_t driver_queue_lock;
+	struct list_head driver_queue;
+
+	/* lock used by the V4L2 core */
+	struct mutex vlock;
+
+	struct media_pad pad;
+	struct media_pipeline pipeline;
+	struct v4l2_pix_format_mplane pix;
+	struct vb2_queue buf_queue;
+	struct video_device vdev;
+
+	void (*queue_buffer)(struct rkcif_stream *stream, unsigned int index);
+	int (*start_streaming)(struct rkcif_stream *stream);
+	void (*stop_streaming)(struct rkcif_stream *stream);
+};
+
 struct rkcif_dvp {
 	u32 dvp_clk_delay;
 };
@@ -89,6 +152,8 @@ struct rkcif_interface {
 	enum rkcif_interface_index index;
 	struct rkcif_device *rkcif;
 	struct rkcif_remote *remote;
+	struct rkcif_stream streams[RKCIF_ID_MAX];
+	unsigned int streams_num;
 	const struct rkcif_input_fmt *in_fmts;
 	unsigned int in_fmts_num;
 
@@ -99,6 +164,8 @@ struct rkcif_interface {
 	union {
 		struct rkcif_dvp dvp;
 	};
+
+	void (*set_crop)(struct rkcif_stream *stream, u16 left, u16 top);
 };
 
 struct rkcif_match_data {
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-interface.c b/drivers/media/platform/rockchip/rkcif/rkcif-interface.c
index 9cea9060ce02..9cf6f9470fff 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-interface.c
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-interface.c
@@ -141,15 +141,41 @@ static int rkcif_interface_set_routing(struct v4l2_subdev *sd,
 	if (ret)
 		return ret;
 
+	for (unsigned int i = 0; i < routing->num_routes; i++) {
+		const struct v4l2_subdev_route *route = &routing->routes[i];
+
+		if (route->source_stream >= RKCIF_ID_MAX)
+			return -EINVAL;
+	}
+
 	ret = v4l2_subdev_set_routing(sd, state, routing);
 
 	return ret;
 }
 
+static int rkcif_interface_apply_crop(struct rkcif_stream *stream,
+				      struct v4l2_subdev_state *state)
+{
+	struct rkcif_interface *interface = stream->interface;
+	struct v4l2_rect *crop;
+
+	crop = v4l2_subdev_state_get_crop(state, RKCIF_IF_PAD_SRC, stream->id);
+	if (!crop)
+		return -EINVAL;
+
+	if (interface->set_crop)
+		interface->set_crop(stream, crop->left, crop->top);
+
+	return 0;
+}
+
 static int rkcif_interface_enable_streams(struct v4l2_subdev *sd,
 					  struct v4l2_subdev_state *state,
 					  u32 pad, u64 streams_mask)
 {
+	struct rkcif_interface *interface = to_rkcif_interface(sd);
+	struct rkcif_stream *stream;
+	struct v4l2_subdev_route *route;
 	struct v4l2_subdev *remote_sd;
 	struct media_pad *remote_pad;
 	u64 mask;
@@ -158,6 +184,17 @@ static int rkcif_interface_enable_streams(struct v4l2_subdev *sd,
 		media_pad_remote_pad_first(&sd->entity.pads[RKCIF_IF_PAD_SINK]);
 	remote_sd = media_entity_to_v4l2_subdev(remote_pad->entity);
 
+	/* DVP has one crop setting for all IDs */
+	if (interface->type == RKCIF_IF_DVP) {
+		stream = &interface->streams[RKCIF_ID0];
+		rkcif_interface_apply_crop(stream, state);
+	} else {
+		for_each_active_route(&state->routing, route) {
+			stream = &interface->streams[route->sink_stream];
+			rkcif_interface_apply_crop(stream, state);
+		}
+	}
+
 	mask = v4l2_subdev_state_xlate_streams(state, RKCIF_IF_PAD_SINK,
 					       RKCIF_IF_PAD_SRC, &streams_mask);
 
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-stream.c b/drivers/media/platform/rockchip/rkcif/rkcif-stream.c
new file mode 100644
index 000000000000..fd6593f4702f
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-stream.c
@@ -0,0 +1,638 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#include <linux/pm_runtime.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-subdev.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "rkcif-common.h"
+#include "rkcif-stream.h"
+
+#define CIF_REQ_BUFS_MIN 1
+#define CIF_MIN_WIDTH	 64
+#define CIF_MIN_HEIGHT	 64
+#define CIF_MAX_WIDTH	 8192
+#define CIF_MAX_HEIGHT	 8192
+
+static inline struct rkcif_buffer *to_rkcif_buffer(struct vb2_v4l2_buffer *vb)
+{
+	return container_of(vb, struct rkcif_buffer, vb);
+}
+
+static inline struct rkcif_stream *to_rkcif_stream(struct video_device *vdev)
+{
+	return container_of(vdev, struct rkcif_stream, vdev);
+}
+
+static struct rkcif_buffer *rkcif_stream_pop_buffer(struct rkcif_stream *stream)
+{
+	struct rkcif_buffer *buffer;
+
+	guard(spinlock_irqsave)(&stream->driver_queue_lock);
+
+	if (list_empty(&stream->driver_queue))
+		return NULL;
+
+	buffer = list_first_entry(&stream->driver_queue, struct rkcif_buffer,
+				  queue);
+	list_del(&buffer->queue);
+
+	return buffer;
+}
+
+static void rkcif_stream_push_buffer(struct rkcif_stream *stream,
+				     struct rkcif_buffer *buffer)
+{
+	guard(spinlock_irqsave)(&stream->driver_queue_lock);
+
+	list_add_tail(&buffer->queue, &stream->driver_queue);
+}
+
+static inline void rkcif_stream_return_buffer(struct rkcif_buffer *buffer,
+					      enum vb2_buffer_state state)
+{
+	struct vb2_v4l2_buffer *vb = &buffer->vb;
+
+	vb2_buffer_done(&vb->vb2_buf, state);
+}
+
+static void rkcif_stream_complete_buffer(struct rkcif_stream *stream,
+					 struct rkcif_buffer *buffer)
+{
+	struct vb2_v4l2_buffer *vb = &buffer->vb;
+
+	vb->vb2_buf.timestamp = ktime_get_ns();
+	vb->sequence = stream->frame_idx;
+	vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
+	stream->frame_idx++;
+}
+
+void rkcif_stream_pingpong(struct rkcif_stream *stream)
+{
+	struct rkcif_buffer *buffer;
+
+	buffer = stream->buffers[stream->frame_phase];
+	if (!buffer->is_dummy)
+		rkcif_stream_complete_buffer(stream, buffer);
+
+	buffer = rkcif_stream_pop_buffer(stream);
+	if (buffer) {
+		stream->buffers[stream->frame_phase] = buffer;
+		stream->buffers[stream->frame_phase]->is_dummy = false;
+	} else {
+		stream->buffers[stream->frame_phase] = &stream->dummy.buffer;
+		stream->buffers[stream->frame_phase]->is_dummy = true;
+		dev_dbg(stream->rkcif->dev,
+			"no buffer available, frame will be dropped\n");
+	}
+
+	if (stream->queue_buffer)
+		stream->queue_buffer(stream, stream->frame_phase);
+
+	stream->frame_phase = 1 - stream->frame_phase;
+}
+
+static int rkcif_stream_init_buffers(struct rkcif_stream *stream)
+{
+	struct v4l2_pix_format_mplane *pix = &stream->pix;
+
+	stream->buffers[0] = rkcif_stream_pop_buffer(stream);
+	if (!stream->buffers[0])
+		goto err_buff_0;
+
+	stream->buffers[1] = rkcif_stream_pop_buffer(stream);
+	if (!stream->buffers[1])
+		goto err_buff_1;
+
+	if (stream->queue_buffer) {
+		stream->queue_buffer(stream, 0);
+		stream->queue_buffer(stream, 1);
+	}
+
+	stream->dummy.size = pix->num_planes * pix->plane_fmt[0].sizeimage;
+	stream->dummy.vaddr =
+		dma_alloc_attrs(stream->rkcif->dev, stream->dummy.size,
+				&stream->dummy.buffer.buff_addr[0], GFP_KERNEL,
+				DMA_ATTR_NO_KERNEL_MAPPING);
+	if (!stream->dummy.vaddr)
+		goto err_dummy;
+
+	for (unsigned int i = 1; i < pix->num_planes; i++)
+		stream->dummy.buffer.buff_addr[i] =
+			stream->dummy.buffer.buff_addr[i - 1] +
+			pix->plane_fmt[i - 1].bytesperline * pix->height;
+
+	return 0;
+
+err_dummy:
+	rkcif_stream_return_buffer(stream->buffers[1], VB2_BUF_STATE_QUEUED);
+	stream->buffers[1] = NULL;
+
+err_buff_1:
+	rkcif_stream_return_buffer(stream->buffers[0], VB2_BUF_STATE_QUEUED);
+	stream->buffers[0] = NULL;
+err_buff_0:
+	return -EINVAL;
+}
+
+static void rkcif_stream_return_all_buffers(struct rkcif_stream *stream,
+					    enum vb2_buffer_state state)
+{
+	struct rkcif_buffer *buffer;
+
+	if (stream->buffers[0] && !stream->buffers[0]->is_dummy) {
+		rkcif_stream_return_buffer(stream->buffers[0], state);
+		stream->buffers[0] = NULL;
+	}
+
+	if (stream->buffers[1] && !stream->buffers[1]->is_dummy) {
+		rkcif_stream_return_buffer(stream->buffers[1], state);
+		stream->buffers[1] = NULL;
+	}
+
+	while ((buffer = rkcif_stream_pop_buffer(stream)))
+		rkcif_stream_return_buffer(buffer, state);
+
+	if (stream->dummy.vaddr) {
+		dma_free_attrs(stream->rkcif->dev, stream->dummy.size,
+			       stream->dummy.vaddr,
+			       stream->dummy.buffer.buff_addr[0],
+			       DMA_ATTR_NO_KERNEL_MAPPING);
+		stream->dummy.vaddr = NULL;
+	}
+}
+
+static int rkcif_stream_setup_queue(struct vb2_queue *queue,
+				    unsigned int *num_buffers,
+				    unsigned int *num_planes,
+				    unsigned int sizes[],
+				    struct device *alloc_devs[])
+{
+	struct rkcif_stream *stream = queue->drv_priv;
+	struct v4l2_pix_format_mplane *pix = &stream->pix;
+
+	if (*num_planes) {
+		if (*num_planes != pix->num_planes)
+			return -EINVAL;
+
+		for (unsigned int i = 0; i < pix->num_planes; i++)
+			if (sizes[i] < pix->plane_fmt[i].sizeimage)
+				return -EINVAL;
+	} else {
+		*num_planes = pix->num_planes;
+		for (unsigned int i = 0; i < pix->num_planes; i++)
+			sizes[i] = pix->plane_fmt[i].sizeimage;
+	}
+
+	return 0;
+}
+
+static int rkcif_stream_prepare_buffer(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct rkcif_buffer *buffer = to_rkcif_buffer(vbuf);
+	struct rkcif_stream *stream = vb->vb2_queue->drv_priv;
+	const struct rkcif_output_fmt *fmt;
+	struct v4l2_pix_format_mplane *pix = &stream->pix;
+	unsigned int i;
+
+	memset(buffer->buff_addr, 0, sizeof(buffer->buff_addr));
+	for (i = 0; i < pix->num_planes; i++)
+		buffer->buff_addr[i] = vb2_dma_contig_plane_dma_addr(vb, i);
+
+	/* apply fallback for non-mplane formats, if required */
+	if (pix->num_planes == 1) {
+		fmt = rkcif_stream_find_output_fmt(stream, true,
+						   pix->pixelformat);
+		for (i = 1; i < fmt->cplanes; i++)
+			buffer->buff_addr[i] =
+				buffer->buff_addr[i - 1] +
+				pix->plane_fmt[i - 1].bytesperline *
+					pix->height;
+	}
+
+	for (i = 0; i < pix->num_planes; i++) {
+		unsigned long size = pix->plane_fmt[i].sizeimage;
+
+		if (vb2_plane_size(vb, i) < size) {
+			dev_err(stream->rkcif->dev,
+				"user buffer too small (%ld < %ld)\n",
+				vb2_plane_size(vb, i), size);
+			return -EINVAL;
+		}
+
+		vb2_set_plane_payload(vb, i, size);
+	}
+
+	vbuf->field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static void rkcif_stream_queue_buffer(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct rkcif_buffer *buffer = to_rkcif_buffer(vbuf);
+	struct rkcif_stream *stream = vb->vb2_queue->drv_priv;
+
+	rkcif_stream_push_buffer(stream, buffer);
+}
+
+static int rkcif_stream_start_streaming(struct vb2_queue *queue,
+					unsigned int count)
+{
+	struct rkcif_stream *stream = queue->drv_priv;
+	struct rkcif_device *rkcif = stream->rkcif;
+	u64 mask;
+	int ret;
+
+	stream->frame_idx = 0;
+	stream->frame_phase = 0;
+
+	ret = video_device_pipeline_start(&stream->vdev, &stream->pipeline);
+	if (ret) {
+		dev_err(rkcif->dev, "failed to start pipeline %d\n", ret);
+		goto err_out;
+	}
+
+	ret = pm_runtime_resume_and_get(rkcif->dev);
+	if (ret < 0) {
+		dev_err(rkcif->dev, "failed to get runtime pm, %d\n", ret);
+		goto err_pipeline_stop;
+	}
+
+	ret = rkcif_stream_init_buffers(stream);
+	if (ret)
+		goto err_runtime_put;
+
+	if (stream->start_streaming) {
+		ret = stream->start_streaming(stream);
+		if (ret < 0)
+			goto err_runtime_put;
+	}
+
+	mask = BIT_ULL(stream->id);
+	ret = v4l2_subdev_enable_streams(&stream->interface->sd,
+					 RKCIF_IF_PAD_SRC, mask);
+	if (ret < 0)
+		goto err_stop_stream;
+
+	return 0;
+
+err_stop_stream:
+	if (stream->stop_streaming)
+		stream->stop_streaming(stream);
+err_runtime_put:
+	pm_runtime_put(rkcif->dev);
+err_pipeline_stop:
+	video_device_pipeline_stop(&stream->vdev);
+err_out:
+	rkcif_stream_return_all_buffers(stream, VB2_BUF_STATE_QUEUED);
+	return ret;
+}
+
+static void rkcif_stream_stop_streaming(struct vb2_queue *queue)
+{
+	struct rkcif_stream *stream = queue->drv_priv;
+	struct rkcif_device *rkcif = stream->rkcif;
+	u64 mask;
+	int ret;
+
+	mask = BIT_ULL(stream->id);
+	v4l2_subdev_disable_streams(&stream->interface->sd, RKCIF_IF_PAD_SRC,
+				    mask);
+
+	stream->stopping = true;
+	ret = wait_event_timeout(stream->wq_stopped, !stream->stopping,
+				 msecs_to_jiffies(1000));
+
+	if (!ret && stream->stop_streaming)
+		stream->stop_streaming(stream);
+
+	pm_runtime_put(rkcif->dev);
+
+	rkcif_stream_return_all_buffers(stream, VB2_BUF_STATE_ERROR);
+
+	video_device_pipeline_stop(&stream->vdev);
+}
+
+static const struct vb2_ops rkcif_stream_vb2_ops = {
+	.queue_setup = rkcif_stream_setup_queue,
+	.buf_prepare = rkcif_stream_prepare_buffer,
+	.buf_queue = rkcif_stream_queue_buffer,
+	.wait_prepare = vb2_ops_wait_prepare,
+	.wait_finish = vb2_ops_wait_finish,
+	.start_streaming = rkcif_stream_start_streaming,
+	.stop_streaming = rkcif_stream_stop_streaming,
+};
+
+static int rkcif_stream_fill_format(struct rkcif_stream *stream,
+				    struct v4l2_pix_format_mplane *pix)
+{
+	const struct rkcif_output_fmt *fmt;
+	u32 height, width;
+	int ret;
+
+	fmt = rkcif_stream_find_output_fmt(stream, true, pix->pixelformat);
+	height = clamp_t(u32, pix->height, CIF_MIN_HEIGHT, CIF_MAX_HEIGHT);
+	width = clamp_t(u32, pix->width, CIF_MIN_WIDTH, CIF_MAX_WIDTH);
+	ret = v4l2_fill_pixfmt_mp(pix, fmt->fourcc, width, height);
+	if (ret)
+		return ret;
+
+	pix->field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static int rkcif_stream_try_format(struct file *file, void *fh,
+				   struct v4l2_format *f)
+{
+	struct rkcif_stream *stream = video_drvdata(file);
+	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+
+	return rkcif_stream_fill_format(stream, pix);
+}
+
+static int rkcif_stream_set_format(struct file *file, void *priv,
+				   struct v4l2_format *f)
+{
+	struct rkcif_stream *stream = video_drvdata(file);
+	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+	int ret;
+
+	if (vb2_is_busy(&stream->buf_queue))
+		return -EBUSY;
+
+	ret = rkcif_stream_try_format(file, priv, f);
+	if (ret)
+		return ret;
+
+	stream->pix = *pix;
+
+	return 0;
+}
+
+static int rkcif_stream_get_format(struct file *file, void *fh,
+				   struct v4l2_format *f)
+{
+	struct rkcif_stream *stream = video_drvdata(file);
+
+	f->fmt.pix_mp = stream->pix;
+
+	return 0;
+}
+
+static int rkcif_stream_enum_formats(struct file *file, void *priv,
+				     struct v4l2_fmtdesc *f)
+{
+	struct rkcif_stream *stream = video_drvdata(file);
+
+	if (f->index >= stream->out_fmts_num)
+		return -EINVAL;
+
+	f->pixelformat = stream->out_fmts[f->index].fourcc;
+
+	return 0;
+}
+
+static int rkcif_stream_enum_framesizes(struct file *file, void *fh,
+					struct v4l2_frmsizeenum *fsize)
+{
+	struct rkcif_stream *stream = video_drvdata(file);
+
+	if (fsize->index > 0)
+		return -EINVAL;
+
+	if (!rkcif_stream_find_output_fmt(stream, false, fsize->pixel_format))
+		return -EINVAL;
+
+	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+	fsize->stepwise.min_width = CIF_MIN_WIDTH;
+	fsize->stepwise.max_width = CIF_MAX_WIDTH;
+	fsize->stepwise.step_width = 8;
+	fsize->stepwise.min_height = CIF_MIN_HEIGHT;
+	fsize->stepwise.max_height = CIF_MAX_HEIGHT;
+	fsize->stepwise.step_height = 8;
+
+	return 0;
+}
+
+static int rkcif_stream_querycap(struct file *file, void *priv,
+				 struct v4l2_capability *cap)
+{
+	struct rkcif_stream *stream = video_drvdata(file);
+	struct device *dev = stream->rkcif->dev;
+
+	strscpy(cap->driver, dev->driver->name, sizeof(cap->driver));
+	strscpy(cap->card, dev->driver->name, sizeof(cap->card));
+
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops rkcif_stream_ioctl_ops = {
+	.vidioc_reqbufs = vb2_ioctl_reqbufs,
+	.vidioc_querybuf = vb2_ioctl_querybuf,
+	.vidioc_create_bufs = vb2_ioctl_create_bufs,
+	.vidioc_qbuf = vb2_ioctl_qbuf,
+	.vidioc_expbuf = vb2_ioctl_expbuf,
+	.vidioc_dqbuf = vb2_ioctl_dqbuf,
+	.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+	.vidioc_streamon = vb2_ioctl_streamon,
+	.vidioc_streamoff = vb2_ioctl_streamoff,
+	.vidioc_try_fmt_vid_cap_mplane = rkcif_stream_try_format,
+	.vidioc_s_fmt_vid_cap_mplane = rkcif_stream_set_format,
+	.vidioc_g_fmt_vid_cap_mplane = rkcif_stream_get_format,
+	.vidioc_enum_fmt_vid_cap = rkcif_stream_enum_formats,
+	.vidioc_enum_framesizes = rkcif_stream_enum_framesizes,
+	.vidioc_querycap = rkcif_stream_querycap,
+};
+
+static int rkcif_stream_link_validate(struct media_link *link)
+{
+	struct video_device *vdev =
+		media_entity_to_video_device(link->sink->entity);
+	struct v4l2_mbus_framefmt *source_fmt;
+	struct v4l2_subdev *sd;
+	struct v4l2_subdev_state *state;
+	struct rkcif_stream *stream = to_rkcif_stream(vdev);
+	int ret = -EINVAL;
+
+	if (!media_entity_remote_source_pad_unique(link->sink->entity))
+		return -ENOTCONN;
+
+	sd = media_entity_to_v4l2_subdev(link->source->entity);
+
+	state = v4l2_subdev_lock_and_get_active_state(sd);
+
+	source_fmt = v4l2_subdev_state_get_format(state, link->source->index,
+						  stream->id);
+	if (!source_fmt)
+		goto out;
+
+	if (source_fmt->height != stream->pix.height ||
+	    source_fmt->width != stream->pix.width) {
+		dev_dbg(stream->rkcif->dev,
+			"link '%s':%u -> '%s':%u not valid: %ux%u != %ux%u\n",
+			link->source->entity->name, link->source->index,
+			link->sink->entity->name, link->sink->index,
+			source_fmt->width, source_fmt->height,
+			stream->pix.width, stream->pix.height);
+		goto out;
+	}
+
+	ret = 0;
+
+out:
+	v4l2_subdev_unlock_state(state);
+	return ret;
+}
+
+static const struct media_entity_operations rkcif_stream_media_ops = {
+	.link_validate = rkcif_stream_link_validate,
+};
+
+static const struct v4l2_file_operations rkcif_stream_file_ops = {
+	.open = v4l2_fh_open,
+	.release = vb2_fop_release,
+	.unlocked_ioctl = video_ioctl2,
+	.poll = vb2_fop_poll,
+	.mmap = vb2_fop_mmap,
+};
+
+static int rkcif_stream_init_vb2_queue(struct vb2_queue *q,
+				       struct rkcif_stream *stream)
+{
+	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	q->io_modes = VB2_MMAP | VB2_DMABUF;
+	q->drv_priv = stream;
+	q->ops = &rkcif_stream_vb2_ops;
+	q->mem_ops = &vb2_dma_contig_memops;
+	q->buf_struct_size = sizeof(struct rkcif_buffer);
+	q->min_queued_buffers = CIF_REQ_BUFS_MIN;
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->lock = &stream->vlock;
+	q->dev = stream->rkcif->dev;
+
+	return vb2_queue_init(q);
+}
+
+int rkcif_stream_register(struct rkcif_device *rkcif,
+			  struct rkcif_stream *stream)
+{
+	struct rkcif_interface *interface = stream->interface;
+	struct v4l2_device *v4l2_dev = &rkcif->v4l2_dev;
+	struct video_device *vdev = &stream->vdev;
+	u32 link_flags = 0;
+	int ret;
+
+	stream->rkcif = rkcif;
+
+	INIT_LIST_HEAD(&stream->driver_queue);
+	spin_lock_init(&stream->driver_queue_lock);
+
+	init_waitqueue_head(&stream->wq_stopped);
+
+	mutex_init(&stream->vlock);
+
+	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_STREAMING |
+			    V4L2_CAP_IO_MC;
+	vdev->entity.ops = &rkcif_stream_media_ops;
+	vdev->fops = &rkcif_stream_file_ops;
+	vdev->ioctl_ops = &rkcif_stream_ioctl_ops;
+	vdev->lock = &stream->vlock;
+	vdev->minor = -1;
+	vdev->release = video_device_release_empty;
+	vdev->v4l2_dev = v4l2_dev;
+	vdev->vfl_dir = VFL_DIR_RX;
+	video_set_drvdata(vdev, stream);
+
+	stream->pad.flags = MEDIA_PAD_FL_SINK;
+
+	stream->pix.height = CIF_MIN_HEIGHT;
+	stream->pix.width = CIF_MIN_WIDTH;
+	rkcif_stream_fill_format(stream, &stream->pix);
+
+	rkcif_stream_init_vb2_queue(&stream->buf_queue, stream);
+
+	vdev->queue = &stream->buf_queue;
+	if (interface->type == RKCIF_IF_DVP)
+		snprintf(vdev->name, sizeof(vdev->name), "rkcif-dvp0-id%d",
+			 stream->id);
+	else if (interface->type == RKCIF_IF_MIPI)
+		snprintf(vdev->name, sizeof(vdev->name), "rkcif-mipi%d-id%d",
+			 interface->index - RKCIF_MIPI_BASE, stream->id);
+
+	ret = media_entity_pads_init(&vdev->entity, 1, &stream->pad);
+	if (ret < 0) {
+		dev_err(rkcif->dev,
+			"failed to initialize stream media pad: %d\n", ret);
+		return ret;
+	}
+
+	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+	if (ret < 0) {
+		dev_err(rkcif->dev, "failed to register video device: %d\n",
+			ret);
+		goto err_media_entity_cleanup;
+	}
+
+	/* enable only stream ID0 by default */
+	if (stream->id == RKCIF_ID0)
+		link_flags |= MEDIA_LNK_FL_ENABLED;
+
+	ret = media_create_pad_link(&interface->sd.entity, RKCIF_IF_PAD_SRC,
+				    &stream->vdev.entity, 0, link_flags);
+	if (ret) {
+		dev_err(rkcif->dev, "failed to link stream media pad: %d\n",
+			ret);
+		goto err_video_unregister;
+	}
+
+	v4l2_info(v4l2_dev, "registered %s as /dev/video%d\n", vdev->name,
+		  vdev->num);
+
+	return 0;
+
+err_video_unregister:
+	video_unregister_device(&stream->vdev);
+err_media_entity_cleanup:
+	media_entity_cleanup(&stream->vdev.entity);
+	return ret;
+}
+
+void rkcif_stream_unregister(struct rkcif_stream *stream)
+{
+	video_unregister_device(&stream->vdev);
+	media_entity_cleanup(&stream->vdev.entity);
+}
+
+const struct rkcif_output_fmt *
+rkcif_stream_find_output_fmt(struct rkcif_stream *stream, bool ret_def,
+			     u32 pixelfmt)
+{
+	const struct rkcif_output_fmt *fmt;
+
+	WARN_ON(stream->out_fmts_num == 0);
+
+	for (unsigned int i = 0; i < stream->out_fmts_num; i++) {
+		fmt = &stream->out_fmts[i];
+		if (fmt->fourcc == pixelfmt)
+			return fmt;
+	}
+
+	if (ret_def)
+		return &stream->out_fmts[0];
+	else
+		return NULL;
+}
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-stream.h b/drivers/media/platform/rockchip/rkcif/rkcif-stream.h
new file mode 100644
index 000000000000..590faf5d1a87
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-stream.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Abstraction for the DMA part and the ping-pong scheme (a double-buffering
+ * mechanism) of the different CIF variants.
+ * Each stream is represented as V4L2 device whose corresponding media entity
+ * has one sink pad.
+ * The sink pad is connected to an instance of the INTERFACE/CROP abstraction
+ * in rkcif-interface.c.
+ *
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#ifndef _RKCIF_STREAM_H
+#define _RKCIF_STREAM_H
+
+#include "rkcif-common.h"
+
+void rkcif_stream_pingpong(struct rkcif_stream *stream);
+
+int rkcif_stream_register(struct rkcif_device *rkcif,
+			  struct rkcif_stream *stream);
+
+void rkcif_stream_unregister(struct rkcif_stream *stream);
+
+const struct rkcif_output_fmt *
+rkcif_stream_find_output_fmt(struct rkcif_stream *stream, bool ret_def,
+			     u32 pixelfmt);
+
+#endif

-- 
2.39.5

[PATCH v12 10/18] media: rockchip: rkcif: add support for px30 vip dvp capture

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

The PX30 Video Input Processor (VIP) unit features a Digital Video
Port (DVP). Add support for the DVP in general and for the PX30
VIP DVP in particular.

Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 drivers/media/platform/rockchip/rkcif/Makefile     |   1 +
 .../platform/rockchip/rkcif/rkcif-capture-dvp.c    | 589 +++++++++++++++++++++
 .../platform/rockchip/rkcif/rkcif-capture-dvp.h    |  24 +
 .../media/platform/rockchip/rkcif/rkcif-common.h   |  28 +
 drivers/media/platform/rockchip/rkcif/rkcif-dev.c  |  15 +
 drivers/media/platform/rockchip/rkcif/rkcif-regs.h | 131 +++++
 6 files changed, 788 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkcif/Makefile b/drivers/media/platform/rockchip/rkcif/Makefile
index 256335d95050..a36e294d569d 100644
--- a/drivers/media/platform/rockchip/rkcif/Makefile
+++ b/drivers/media/platform/rockchip/rkcif/Makefile
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VIDEO_ROCKCHIP_CIF) += rockchip-cif.o
 
+rockchip-cif-objs += rkcif-capture-dvp.o
 rockchip-cif-objs += rkcif-dev.o
 rockchip-cif-objs += rkcif-interface.o
 rockchip-cif-objs += rkcif-stream.o
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.c b/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.c
new file mode 100644
index 000000000000..b40135035ab8
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.c
@@ -0,0 +1,589 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2020 Maxime Chevallier <maxime.chevallier@bootlin.com>
+ * Copyright (C) 2023 Mehdi Djait <mehdi.djait@bootlin.com>
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-subdev.h>
+
+#include "rkcif-capture-dvp.h"
+#include "rkcif-common.h"
+#include "rkcif-interface.h"
+#include "rkcif-regs.h"
+#include "rkcif-stream.h"
+
+static const struct rkcif_output_fmt dvp_out_fmts[] = {
+	{
+		.fourcc = V4L2_PIX_FMT_NV16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_OUTPUT_422 |
+			       RKCIF_FORMAT_UV_STORAGE_ORDER_UVUV,
+		.cplanes = 2,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_NV16M,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_OUTPUT_422 |
+			       RKCIF_FORMAT_UV_STORAGE_ORDER_UVUV,
+		.cplanes = 2,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_NV61,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_OUTPUT_422 |
+			       RKCIF_FORMAT_UV_STORAGE_ORDER_VUVU,
+		.cplanes = 2,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_NV61M,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_OUTPUT_422 |
+			       RKCIF_FORMAT_UV_STORAGE_ORDER_VUVU,
+		.cplanes = 2,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_NV12,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_OUTPUT_420 |
+			       RKCIF_FORMAT_UV_STORAGE_ORDER_UVUV,
+		.cplanes = 2,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_NV12M,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_OUTPUT_420 |
+			       RKCIF_FORMAT_UV_STORAGE_ORDER_UVUV,
+		.cplanes = 2,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_NV21,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_OUTPUT_420 |
+			       RKCIF_FORMAT_UV_STORAGE_ORDER_VUVU,
+		.cplanes = 2,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_NV21M,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_OUTPUT_420 |
+			       RKCIF_FORMAT_UV_STORAGE_ORDER_VUVU,
+		.cplanes = 2,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_RGB24,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_RGB565,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_BGR666,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SRGGB8,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGRBG8,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGBRG8,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR8,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SRGGB10,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGRBG10,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGBRG10,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR10,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SRGGB12,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGRBG12,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGBRG12,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR12,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR16,
+		.cplanes = 1,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_Y16,
+		.cplanes = 1,
+	},
+};
+
+static const struct rkcif_input_fmt px30_dvp_in_fmts[] = {
+	{
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YVYU8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YVYU8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_UYVY,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_UYVY,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_VYUY8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_VYUY,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_VYUY8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_VYUY,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_RGB888_1X24,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_Y8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_Y10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_Y12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	}
+};
+
+const struct rkcif_dvp_match_data rkcif_px30_vip_dvp_match_data = {
+	.in_fmts = px30_dvp_in_fmts,
+	.in_fmts_num = ARRAY_SIZE(px30_dvp_in_fmts),
+	.out_fmts = dvp_out_fmts,
+	.out_fmts_num = ARRAY_SIZE(dvp_out_fmts),
+	.has_scaler = true,
+	.regs = {
+		[RKCIF_DVP_CTRL] = 0x00,
+		[RKCIF_DVP_INTEN] = 0x04,
+		[RKCIF_DVP_INTSTAT] = 0x08,
+		[RKCIF_DVP_FOR] = 0x0c,
+		[RKCIF_DVP_LINE_NUM_ADDR] = 0x10,
+		[RKCIF_DVP_FRM0_ADDR_Y] = 0x14,
+		[RKCIF_DVP_FRM0_ADDR_UV] = 0x18,
+		[RKCIF_DVP_FRM1_ADDR_Y] = 0x1c,
+		[RKCIF_DVP_FRM1_ADDR_UV] = 0x20,
+		[RKCIF_DVP_VIR_LINE_WIDTH] = 0x24,
+		[RKCIF_DVP_SET_SIZE] = 0x28,
+		[RKCIF_DVP_SCL_CTRL] = 0x48,
+		[RKCIF_DVP_FRAME_STATUS] = 0x60,
+		[RKCIF_DVP_LAST_LINE] = 0x68,
+		[RKCIF_DVP_LAST_PIX] = 0x6c,
+	},
+};
+
+static inline unsigned int rkcif_dvp_get_addr(struct rkcif_device *rkcif,
+					      unsigned int index)
+{
+	if (WARN_ON_ONCE(index >= RKCIF_DVP_REGISTER_MAX))
+		return RKCIF_REGISTER_NOTSUPPORTED;
+
+	return rkcif->match_data->dvp->regs[index];
+}
+
+static inline __maybe_unused void rkcif_dvp_write(struct rkcif_device *rkcif,
+						  unsigned int index, u32 val)
+{
+	unsigned int addr = rkcif_dvp_get_addr(rkcif, index);
+
+	if (addr == RKCIF_REGISTER_NOTSUPPORTED)
+		return;
+
+	writel(val, rkcif->base_addr + addr);
+}
+
+static inline __maybe_unused u32 rkcif_dvp_read(struct rkcif_device *rkcif,
+						unsigned int index)
+{
+	unsigned int addr = rkcif_dvp_get_addr(rkcif, index);
+
+	if (addr == RKCIF_REGISTER_NOTSUPPORTED)
+		return 0;
+
+	return readl(rkcif->base_addr + addr);
+}
+
+static void rkcif_dvp_queue_buffer(struct rkcif_stream *stream,
+				   unsigned int index)
+{
+	struct rkcif_device *rkcif = stream->rkcif;
+	struct rkcif_buffer *buffer = stream->buffers[index];
+	u32 frm_addr_y, frm_addr_uv;
+
+	frm_addr_y = index ? RKCIF_DVP_FRM1_ADDR_Y : RKCIF_DVP_FRM0_ADDR_Y;
+	frm_addr_uv = index ? RKCIF_DVP_FRM1_ADDR_UV : RKCIF_DVP_FRM0_ADDR_UV;
+
+	rkcif_dvp_write(rkcif, frm_addr_y, buffer->buff_addr[RKCIF_PLANE_Y]);
+	rkcif_dvp_write(rkcif, frm_addr_uv, buffer->buff_addr[RKCIF_PLANE_UV]);
+}
+
+static int rkcif_dvp_start_streaming(struct rkcif_stream *stream)
+{
+	struct rkcif_device *rkcif = stream->rkcif;
+	struct rkcif_interface *interface = stream->interface;
+	struct v4l2_mbus_config_parallel *parallel;
+	struct v4l2_mbus_framefmt *source_fmt;
+	struct v4l2_subdev_state *state;
+	const struct rkcif_input_fmt *active_in_fmt;
+	const struct rkcif_output_fmt *active_out_fmt;
+	u32 val = 0;
+	int ret = -EINVAL;
+
+	state = v4l2_subdev_lock_and_get_active_state(&interface->sd);
+	source_fmt = v4l2_subdev_state_get_format(state, RKCIF_IF_PAD_SRC,
+						  stream->id);
+	if (!source_fmt)
+		goto out;
+
+	active_in_fmt = rkcif_interface_find_input_fmt(interface, false,
+						       source_fmt->code);
+	active_out_fmt = rkcif_stream_find_output_fmt(stream, false,
+						      stream->pix.pixelformat);
+	if (!active_in_fmt || !active_out_fmt)
+		goto out;
+
+	parallel = &interface->vep.bus.parallel;
+	if (parallel->bus_width == 16 &&
+	    (parallel->flags & V4L2_MBUS_PCLK_SAMPLE_DUALEDGE))
+		val |= RKCIF_FORMAT_BT1120_CLOCK_DOUBLE_EDGES;
+	val |= active_in_fmt->dvp_fmt_val;
+	val |= active_out_fmt->dvp_fmt_val;
+	rkcif_dvp_write(rkcif, RKCIF_DVP_FOR, val);
+
+	val = stream->pix.width;
+	if (active_in_fmt->fmt_type == RKCIF_FMT_TYPE_RAW)
+		val = stream->pix.width * 2;
+	rkcif_dvp_write(rkcif, RKCIF_DVP_VIR_LINE_WIDTH, val);
+
+	val = RKCIF_XY_COORD(stream->pix.width, stream->pix.height);
+	rkcif_dvp_write(rkcif, RKCIF_DVP_SET_SIZE, val);
+
+	rkcif_dvp_write(rkcif, RKCIF_DVP_FRAME_STATUS, RKCIF_FRAME_STAT_CLS);
+	rkcif_dvp_write(rkcif, RKCIF_DVP_INTSTAT, RKCIF_INTSTAT_CLS);
+	if (rkcif->match_data->dvp->has_scaler) {
+		val = active_in_fmt->fmt_type == RKCIF_FMT_TYPE_YUV ?
+			      RKCIF_SCL_CTRL_ENABLE_YUV_16BIT_BYPASS :
+			      RKCIF_SCL_CTRL_ENABLE_RAW_16BIT_BYPASS;
+		rkcif_dvp_write(rkcif, RKCIF_DVP_SCL_CTRL, val);
+	}
+
+	rkcif_dvp_write(rkcif, RKCIF_DVP_INTEN,
+			RKCIF_INTEN_FRAME_END_EN |
+			RKCIF_INTEN_PST_INF_FRAME_END_EN);
+
+	rkcif_dvp_write(rkcif, RKCIF_DVP_CTRL,
+			RKCIF_CTRL_AXI_BURST_16 | RKCIF_CTRL_MODE_PINGPONG |
+			RKCIF_CTRL_ENABLE_CAPTURE);
+
+	ret = 0;
+
+out:
+	v4l2_subdev_unlock_state(state);
+	return ret;
+}
+
+static void rkcif_dvp_stop_streaming(struct rkcif_stream *stream)
+{
+	struct rkcif_device *rkcif = stream->rkcif;
+	u32 val;
+
+	val = rkcif_dvp_read(rkcif, RKCIF_DVP_CTRL);
+	rkcif_dvp_write(rkcif, RKCIF_DVP_CTRL,
+			val & (~RKCIF_CTRL_ENABLE_CAPTURE));
+	rkcif_dvp_write(rkcif, RKCIF_DVP_INTEN, 0x0);
+	rkcif_dvp_write(rkcif, RKCIF_DVP_INTSTAT, 0x3ff);
+	rkcif_dvp_write(rkcif, RKCIF_DVP_FRAME_STATUS, 0x0);
+
+	stream->stopping = false;
+}
+
+static void rkcif_dvp_reset_stream(struct rkcif_device *rkcif)
+{
+	u32 ctl = rkcif_dvp_read(rkcif, RKCIF_DVP_CTRL);
+
+	rkcif_dvp_write(rkcif, RKCIF_DVP_CTRL,
+			ctl & (~RKCIF_CTRL_ENABLE_CAPTURE));
+	rkcif_dvp_write(rkcif, RKCIF_DVP_CTRL, ctl | RKCIF_CTRL_ENABLE_CAPTURE);
+}
+
+static void rkcif_dvp_set_crop(struct rkcif_stream *stream, u16 left, u16 top)
+{
+	struct rkcif_device *rkcif = stream->rkcif;
+	u32 val;
+
+	val = RKCIF_XY_COORD(left, top);
+	rkcif_dvp_write(rkcif, RKCIF_DVP_CROP, val);
+}
+
+irqreturn_t rkcif_dvp_isr(int irq, void *ctx)
+{
+	struct device *dev = ctx;
+	struct rkcif_device *rkcif = dev_get_drvdata(dev);
+	struct rkcif_stream *stream;
+	u32 intstat, lastline, lastpix, cif_frmst;
+	irqreturn_t ret = IRQ_NONE;
+
+	if (!rkcif->match_data->dvp)
+		return ret;
+
+	intstat = rkcif_dvp_read(rkcif, RKCIF_DVP_INTSTAT);
+	cif_frmst = rkcif_dvp_read(rkcif, RKCIF_DVP_FRAME_STATUS);
+	lastline = RKCIF_FETCH_Y(rkcif_dvp_read(rkcif, RKCIF_DVP_LAST_LINE));
+	lastpix = RKCIF_FETCH_Y(rkcif_dvp_read(rkcif, RKCIF_DVP_LAST_PIX));
+
+	if (intstat & RKCIF_INTSTAT_FRAME_END) {
+		rkcif_dvp_write(rkcif, RKCIF_DVP_INTSTAT,
+				RKCIF_INTSTAT_FRAME_END_CLR |
+				RKCIF_INTSTAT_LINE_END_CLR);
+
+		stream = &rkcif->interfaces[RKCIF_DVP].streams[RKCIF_ID0];
+
+		if (stream->stopping) {
+			rkcif_dvp_stop_streaming(stream);
+			wake_up(&stream->wq_stopped);
+			ret = IRQ_HANDLED;
+			goto out;
+		}
+
+		if (lastline != stream->pix.height) {
+			v4l2_err(&rkcif->v4l2_dev,
+				 "bad frame, irq:%#x frmst:%#x size:%dx%d\n",
+				 intstat, cif_frmst, lastpix, lastline);
+
+			rkcif_dvp_reset_stream(rkcif);
+		}
+
+		rkcif_stream_pingpong(stream);
+
+		ret = IRQ_HANDLED;
+	}
+out:
+	return ret;
+}
+
+int rkcif_dvp_register(struct rkcif_device *rkcif)
+{
+	struct rkcif_interface *interface;
+	unsigned int streams_num;
+	int ret;
+
+	if (!rkcif->match_data->dvp)
+		return 0;
+
+	interface = &rkcif->interfaces[RKCIF_DVP];
+	interface->index = RKCIF_DVP;
+	interface->type = RKCIF_IF_DVP;
+	interface->in_fmts = rkcif->match_data->dvp->in_fmts;
+	interface->in_fmts_num = rkcif->match_data->dvp->in_fmts_num;
+	interface->set_crop = rkcif_dvp_set_crop;
+	ret = rkcif_interface_register(rkcif, interface);
+	if (ret)
+		return ret;
+
+	if (rkcif->match_data->dvp->setup)
+		rkcif->match_data->dvp->setup(rkcif);
+
+	streams_num = rkcif->match_data->dvp->has_ids ? 4 : 1;
+	for (unsigned int i = 0; i < streams_num; i++) {
+		struct rkcif_stream *stream = &interface->streams[i];
+
+		stream->id = i;
+		stream->interface = interface;
+		stream->out_fmts = rkcif->match_data->dvp->out_fmts;
+		stream->out_fmts_num = rkcif->match_data->dvp->out_fmts_num;
+		stream->queue_buffer = rkcif_dvp_queue_buffer;
+		stream->start_streaming = rkcif_dvp_start_streaming;
+		stream->stop_streaming = rkcif_dvp_stop_streaming;
+
+		ret = rkcif_stream_register(rkcif, stream);
+		if (ret)
+			goto err_streams_unregister;
+
+		interface->streams_num++;
+	}
+
+	return 0;
+
+err_streams_unregister:
+	for (unsigned int i = 0; i < interface->streams_num; i++)
+		rkcif_stream_unregister(&interface->streams[i]);
+
+	rkcif_interface_unregister(interface);
+
+	return ret;
+}
+
+void rkcif_dvp_unregister(struct rkcif_device *rkcif)
+{
+	struct rkcif_interface *interface;
+
+	if (!rkcif->match_data->dvp)
+		return;
+
+	interface = &rkcif->interfaces[RKCIF_DVP];
+
+	for (unsigned int i = 0; i < interface->streams_num; i++)
+		rkcif_stream_unregister(&interface->streams[i]);
+
+	rkcif_interface_unregister(interface);
+}
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.h b/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.h
new file mode 100644
index 000000000000..7b2da11497c3
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2023 Mehdi Djait <mehdi.djait@bootlin.com>
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#ifndef _RKCIF_CAPTURE_DVP_H
+#define _RKCIF_CAPTURE_DVP_H
+
+#include "rkcif-common.h"
+
+extern const struct rkcif_dvp_match_data rkcif_px30_vip_dvp_match_data;
+
+int rkcif_dvp_register(struct rkcif_device *rkcif);
+
+void rkcif_dvp_unregister(struct rkcif_device *rkcif);
+
+irqreturn_t rkcif_dvp_isr(int irq, void *ctx);
+
+#endif
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-common.h b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
index 63d5b45c7afe..c6ec578e1049 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-common.h
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
@@ -24,6 +24,8 @@
 #include <media/v4l2-subdev.h>
 #include <media/videobuf2-v4l2.h>
 
+#include "rkcif-regs.h"
+
 #define RKCIF_DRIVER_NAME "rockchip-cif"
 #define RKCIF_CLK_MAX	  4
 
@@ -84,17 +86,31 @@ struct rkcif_dummy_buffer {
 	u32 size;
 };
 
+enum rkcif_plane_index {
+	RKCIF_PLANE_Y,
+	RKCIF_PLANE_UV,
+	RKCIF_PLANE_MAX
+};
+
 struct rkcif_input_fmt {
 	u32 mbus_code;
 
 	enum rkcif_format_type fmt_type;
 	enum v4l2_field field;
+
+	union {
+		u32 dvp_fmt_val;
+	};
 };
 
 struct rkcif_output_fmt {
 	u32 fourcc;
 	u32 mbus_code;
 	u8 cplanes;
+
+	union {
+		u32 dvp_fmt_val;
+	};
 };
 
 struct rkcif_interface;
@@ -168,9 +184,21 @@ struct rkcif_interface {
 	void (*set_crop)(struct rkcif_stream *stream, u16 left, u16 top);
 };
 
+struct rkcif_dvp_match_data {
+	const struct rkcif_input_fmt *in_fmts;
+	unsigned int in_fmts_num;
+	const struct rkcif_output_fmt *out_fmts;
+	unsigned int out_fmts_num;
+	void (*setup)(struct rkcif_device *rkcif);
+	bool has_scaler;
+	bool has_ids;
+	unsigned int regs[RKCIF_DVP_REGISTER_MAX];
+};
+
 struct rkcif_match_data {
 	const char *const *clks;
 	unsigned int clks_num;
+	const struct rkcif_dvp_match_data *dvp;
 };
 
 struct rkcif_device {
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
index 49e53f70715c..207802073fd3 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
@@ -23,6 +23,7 @@
 #include <media/v4l2-fwnode.h>
 #include <media/v4l2-mc.h>
 
+#include "rkcif-capture-dvp.h"
 #include "rkcif-common.h"
 
 static const char *const px30_vip_clks[] = {
@@ -34,6 +35,7 @@ static const char *const px30_vip_clks[] = {
 static const struct rkcif_match_data px30_vip_match_data = {
 	.clks = px30_vip_clks,
 	.clks_num = ARRAY_SIZE(px30_vip_clks),
+	.dvp = &rkcif_px30_vip_dvp_match_data,
 };
 
 static const char *const rk3568_vicap_clks[] = {
@@ -63,11 +65,21 @@ MODULE_DEVICE_TABLE(of, rkcif_plat_of_match);
 
 static int rkcif_register(struct rkcif_device *rkcif)
 {
+	int ret;
+
+	ret = rkcif_dvp_register(rkcif);
+	if (ret && ret != -ENODEV)
+		goto err;
+
 	return 0;
+
+err:
+	return ret;
 }
 
 static void rkcif_unregister(struct rkcif_device *rkcif)
 {
+	rkcif_dvp_unregister(rkcif);
 }
 
 static int rkcif_notifier_bound(struct v4l2_async_notifier *notifier,
@@ -112,6 +124,9 @@ static irqreturn_t rkcif_isr(int irq, void *ctx)
 {
 	irqreturn_t ret = IRQ_NONE;
 
+	if (rkcif_dvp_isr(irq, ctx) == IRQ_HANDLED)
+		ret = IRQ_HANDLED;
+
 	return ret;
 }
 
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-regs.h b/drivers/media/platform/rockchip/rkcif/rkcif-regs.h
new file mode 100644
index 000000000000..91d42d31fd10
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-regs.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2023 Mehdi Djait <mehdi.djait@bootlin.com>
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ */
+
+#ifndef _RKCIF_REGS_H
+#define _RKCIF_REGS_H
+
+#define RKCIF_REGISTER_NOTSUPPORTED		0x420000
+#define RKCIF_FETCH_Y(VAL)			((VAL) & 0x1fff)
+#define RKCIF_XY_COORD(x, y)			(((y) << 16) | (x))
+
+/* DVP register contents */
+#define RKCIF_CTRL_ENABLE_CAPTURE		BIT(0)
+#define RKCIF_CTRL_MODE_PINGPONG		BIT(1)
+#define RKCIF_CTRL_MODE_LINELOOP		BIT(2)
+#define RKCIF_CTRL_AXI_BURST_16			(0xf << 12)
+
+#define RKCIF_INTEN_FRAME_END_EN		BIT(0)
+#define RKCIF_INTEN_LINE_ERR_EN			BIT(2)
+#define RKCIF_INTEN_BUS_ERR_EN			BIT(6)
+#define RKCIF_INTEN_SCL_ERR_EN			BIT(7)
+#define RKCIF_INTEN_PST_INF_FRAME_END_EN	BIT(9)
+
+#define RKCIF_INTSTAT_CLS			0x3ff
+#define RKCIF_INTSTAT_FRAME_END			BIT(0)
+#define RKCIF_INTSTAT_LINE_END			BIT(1)
+#define RKCIF_INTSTAT_LINE_ERR			BIT(2)
+#define RKCIF_INTSTAT_PIX_ERR			BIT(3)
+#define RKCIF_INTSTAT_DFIFO_OF			BIT(5)
+#define RKCIF_INTSTAT_BUS_ERR			BIT(6)
+#define RKCIF_INTSTAT_PRE_INF_FRAME_END		BIT(8)
+#define RKCIF_INTSTAT_PST_INF_FRAME_END		BIT(9)
+#define RKCIF_INTSTAT_FRAME_END_CLR		BIT(0)
+#define RKCIF_INTSTAT_LINE_END_CLR		BIT(1)
+#define RKCIF_INTSTAT_LINE_ERR_CLR		BIT(2)
+#define RKCIF_INTSTAT_PST_INF_FRAME_END_CLR	BIT(9)
+#define RKCIF_INTSTAT_ERR			0xfc
+
+#define RKCIF_FRAME_STAT_CLS			0x00
+#define RKCIF_FRAME_FRM0_STAT_CLS		0x20
+
+#define RKCIF_FORMAT_VSY_HIGH_ACTIVE		BIT(0)
+#define RKCIF_FORMAT_HSY_LOW_ACTIVE		BIT(1)
+
+#define RKCIF_FORMAT_INPUT_MODE_YUV		(0x00 << 2)
+#define RKCIF_FORMAT_INPUT_MODE_PAL		(0x02 << 2)
+#define RKCIF_FORMAT_INPUT_MODE_NTSC		(0x03 << 2)
+#define RKCIF_FORMAT_INPUT_MODE_BT1120		(0x07 << 2)
+#define RKCIF_FORMAT_INPUT_MODE_RAW		(0x04 << 2)
+#define RKCIF_FORMAT_INPUT_MODE_JPEG		(0x05 << 2)
+#define RKCIF_FORMAT_INPUT_MODE_MIPI		(0x06 << 2)
+
+#define RKCIF_FORMAT_YUV_INPUT_ORDER_UYVY	(0x00 << 5)
+#define RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU	(0x01 << 5)
+#define RKCIF_FORMAT_YUV_INPUT_ORDER_VYUY	(0x02 << 5)
+#define RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV	(0x03 << 5)
+#define RKCIF_FORMAT_YUV_INPUT_422		(0x00 << 7)
+#define RKCIF_FORMAT_YUV_INPUT_420		BIT(7)
+
+#define RKCIF_FORMAT_INPUT_420_ORDER_ODD	BIT(8)
+
+#define RKCIF_FORMAT_CCIR_INPUT_ORDER_EVEN	BIT(9)
+
+#define RKCIF_FORMAT_RAW_DATA_WIDTH_8		(0x00 << 11)
+#define RKCIF_FORMAT_RAW_DATA_WIDTH_10		(0x01 << 11)
+#define RKCIF_FORMAT_RAW_DATA_WIDTH_12		(0x02 << 11)
+
+#define RKCIF_FORMAT_YUV_OUTPUT_422		(0x00 << 16)
+#define RKCIF_FORMAT_YUV_OUTPUT_420		BIT(16)
+
+#define RKCIF_FORMAT_OUTPUT_420_ORDER_EVEN	(0x00 << 17)
+#define RKCIF_FORMAT_OUTPUT_420_ORDER_ODD	BIT(17)
+
+#define RKCIF_FORMAT_RAWD_DATA_LITTLE_ENDIAN	(0x00 << 18)
+#define RKCIF_FORMAT_RAWD_DATA_BIG_ENDIAN	BIT(18)
+
+#define RKCIF_FORMAT_UV_STORAGE_ORDER_UVUV	(0x00 << 19)
+#define RKCIF_FORMAT_UV_STORAGE_ORDER_VUVU	BIT(19)
+
+#define RKCIF_FORMAT_BT1120_CLOCK_SINGLE_EDGES	(0x00 << 24)
+#define RKCIF_FORMAT_BT1120_CLOCK_DOUBLE_EDGES	BIT(24)
+#define RKCIF_FORMAT_BT1120_TRANSMIT_INTERFACE	(0x00 << 25)
+#define RKCIF_FORMAT_BT1120_TRANSMIT_PROGRESS	BIT(25)
+#define RKCIF_FORMAT_BT1120_YC_SWAP		BIT(26)
+
+#define RKCIF_SCL_CTRL_ENABLE_SCL_DOWN		BIT(0)
+#define RKCIF_SCL_CTRL_ENABLE_SCL_UP		BIT(1)
+#define RKCIF_SCL_CTRL_ENABLE_YUV_16BIT_BYPASS	BIT(4)
+#define RKCIF_SCL_CTRL_ENABLE_RAW_16BIT_BYPASS	BIT(5)
+#define RKCIF_SCL_CTRL_ENABLE_32BIT_BYPASS	BIT(6)
+#define RKCIF_SCL_CTRL_DISABLE_32BIT_BYPASS	(0x00 << 6)
+
+#define RKCIF_INTSTAT_F0_READY			BIT(0)
+#define RKCIF_INTSTAT_F1_READY			BIT(1)
+
+/* GRF register offsets and contents */
+#define RK3568_GRF_VI_CON0			0x340
+#define RK3568_GRF_VI_CON1			0x344
+#define RK3568_GRF_VI_STATUS0			0x348
+
+#define RK3568_GRF_VI_CON1_CIF_DATAPATH		BIT(9)
+#define RK3568_GRF_VI_CON1_CIF_CLK_DELAYNUM	GENMASK(6, 0)
+
+#define RK3568_GRF_WRITE_ENABLE(x)		((x) << 16)
+
+enum rkcif_dvp_register_index {
+	RKCIF_DVP_CTRL,
+	RKCIF_DVP_INTEN,
+	RKCIF_DVP_INTSTAT,
+	RKCIF_DVP_FOR,
+	RKCIF_DVP_LINE_NUM_ADDR,
+	RKCIF_DVP_FRM0_ADDR_Y,
+	RKCIF_DVP_FRM0_ADDR_UV,
+	RKCIF_DVP_FRM1_ADDR_Y,
+	RKCIF_DVP_FRM1_ADDR_UV,
+	RKCIF_DVP_VIR_LINE_WIDTH,
+	RKCIF_DVP_SET_SIZE,
+	RKCIF_DVP_SCL_CTRL,
+	RKCIF_DVP_CROP,
+	RKCIF_DVP_FRAME_STATUS,
+	RKCIF_DVP_LAST_LINE,
+	RKCIF_DVP_LAST_PIX,
+	RKCIF_DVP_REGISTER_MAX
+};
+
+#endif

-- 
2.39.5

[PATCH v12 11/18] media: rockchip: rkcif: add support for rk3568 vicap dvp capture

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

The RK3568 Video Capture (VICAP) unit features a Digital Video Port
(DVP). Add support for it.

Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 .../platform/rockchip/rkcif/rkcif-capture-dvp.c    | 276 +++++++++++++++++++++
 .../platform/rockchip/rkcif/rkcif-capture-dvp.h    |   1 +
 drivers/media/platform/rockchip/rkcif/rkcif-dev.c  |   1 +
 3 files changed, 278 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.c b/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.c
index b40135035ab8..dbaf7636aeeb 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.c
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.c
@@ -332,6 +332,282 @@ const struct rkcif_dvp_match_data rkcif_px30_vip_dvp_match_data = {
 	},
 };
 
+static const struct rkcif_input_fmt rk3568_dvp_in_fmts[] = {
+	{
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YVYU8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YVYU8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_UYVY,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_UYVY,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_VYUY8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_VYUY,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_VYUY8_2X8,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_VYUY,
+		.fmt_type = RKCIF_FMT_TYPE_YUV,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_1X16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV |
+			       RKCIF_FORMAT_INPUT_MODE_BT1120 |
+			       RKCIF_FORMAT_BT1120_TRANSMIT_PROGRESS,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_1X16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV |
+			       RKCIF_FORMAT_INPUT_MODE_BT1120,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YVYU8_1X16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU |
+			       RKCIF_FORMAT_INPUT_MODE_BT1120 |
+			       RKCIF_FORMAT_BT1120_TRANSMIT_PROGRESS,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YVYU8_1X16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU |
+			       RKCIF_FORMAT_INPUT_MODE_BT1120,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_1X16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV |
+			       RKCIF_FORMAT_INPUT_MODE_BT1120 |
+			       RKCIF_FORMAT_BT1120_YC_SWAP |
+			       RKCIF_FORMAT_BT1120_TRANSMIT_PROGRESS,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_1X16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YUYV |
+			       RKCIF_FORMAT_BT1120_YC_SWAP |
+			       RKCIF_FORMAT_INPUT_MODE_BT1120,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_VYUY8_1X16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU |
+			       RKCIF_FORMAT_INPUT_MODE_BT1120 |
+			       RKCIF_FORMAT_BT1120_YC_SWAP |
+			       RKCIF_FORMAT_BT1120_TRANSMIT_PROGRESS,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_VYUY8_1X16,
+		.dvp_fmt_val = RKCIF_FORMAT_YUV_INPUT_422 |
+			       RKCIF_FORMAT_YUV_INPUT_ORDER_YVYU |
+			       RKCIF_FORMAT_BT1120_YC_SWAP |
+			       RKCIF_FORMAT_INPUT_MODE_BT1120,
+		.field = V4L2_FIELD_INTERLACED,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_RGB888_1X24,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_Y8_1X8,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_8,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_Y10_1X10,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_10,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_Y12_1X12,
+		.dvp_fmt_val = RKCIF_FORMAT_INPUT_MODE_RAW |
+			       RKCIF_FORMAT_RAW_DATA_WIDTH_12,
+		.fmt_type = RKCIF_FMT_TYPE_RAW,
+		.field = V4L2_FIELD_NONE,
+	},
+};
+
+static void rk3568_dvp_grf_setup(struct rkcif_device *rkcif)
+{
+	u32 con1 = RK3568_GRF_WRITE_ENABLE(RK3568_GRF_VI_CON1_CIF_DATAPATH |
+					   RK3568_GRF_VI_CON1_CIF_CLK_DELAYNUM);
+
+	if (!rkcif->grf)
+		return;
+
+	con1 |= rkcif->interfaces[RKCIF_DVP].dvp.dvp_clk_delay &
+		RK3568_GRF_VI_CON1_CIF_CLK_DELAYNUM;
+
+	if (rkcif->interfaces[RKCIF_DVP].vep.bus.parallel.flags &
+	    V4L2_MBUS_PCLK_SAMPLE_DUALEDGE)
+		con1 |= RK3568_GRF_VI_CON1_CIF_DATAPATH;
+
+	regmap_write(rkcif->grf, RK3568_GRF_VI_CON1, con1);
+}
+
+const struct rkcif_dvp_match_data rkcif_rk3568_vicap_dvp_match_data = {
+	.in_fmts = rk3568_dvp_in_fmts,
+	.in_fmts_num = ARRAY_SIZE(rk3568_dvp_in_fmts),
+	.out_fmts = dvp_out_fmts,
+	.out_fmts_num = ARRAY_SIZE(dvp_out_fmts),
+	.setup = rk3568_dvp_grf_setup,
+	.has_scaler = false,
+	.regs = {
+		[RKCIF_DVP_CTRL] = 0x00,
+		[RKCIF_DVP_INTEN] = 0x04,
+		[RKCIF_DVP_INTSTAT] = 0x08,
+		[RKCIF_DVP_FOR] = 0x0c,
+		[RKCIF_DVP_LINE_NUM_ADDR] = 0x2c,
+		[RKCIF_DVP_FRM0_ADDR_Y] = 0x14,
+		[RKCIF_DVP_FRM0_ADDR_UV] = 0x18,
+		[RKCIF_DVP_FRM1_ADDR_Y] = 0x1c,
+		[RKCIF_DVP_FRM1_ADDR_UV] = 0x20,
+		[RKCIF_DVP_VIR_LINE_WIDTH] = 0x24,
+		[RKCIF_DVP_SET_SIZE] = 0x28,
+		[RKCIF_DVP_CROP] = 0x34,
+		[RKCIF_DVP_FRAME_STATUS] = 0x3c,
+		[RKCIF_DVP_LAST_LINE] = 0x44,
+		[RKCIF_DVP_LAST_PIX] = 0x48,
+	},
+};
+
 static inline unsigned int rkcif_dvp_get_addr(struct rkcif_device *rkcif,
 					      unsigned int index)
 {
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.h b/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.h
index 7b2da11497c3..a4ed37833bd6 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.h
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-capture-dvp.h
@@ -14,6 +14,7 @@
 #include "rkcif-common.h"
 
 extern const struct rkcif_dvp_match_data rkcif_px30_vip_dvp_match_data;
+extern const struct rkcif_dvp_match_data rkcif_rk3568_vicap_dvp_match_data;
 
 int rkcif_dvp_register(struct rkcif_device *rkcif);
 
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
index 207802073fd3..addc118ff8bf 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
@@ -48,6 +48,7 @@ static const char *const rk3568_vicap_clks[] = {
 static const struct rkcif_match_data rk3568_vicap_match_data = {
 	.clks = rk3568_vicap_clks,
 	.clks_num = ARRAY_SIZE(rk3568_vicap_clks),
+	.dvp = &rkcif_rk3568_vicap_dvp_match_data,
 };
 
 static const struct of_device_id rkcif_plat_of_match[] = {

-- 
2.39.5

[PATCH v12 12/18] media: rockchip: rkcif: add support for rk3568 vicap mipi capture

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

The RK3568 Video Capture (VICAP) unit features a MIPI CSI-2 capture
interface. Add support for the MIPI capture interface in general
and for the RK3568 VICAP MIPI capture in particular.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 drivers/media/platform/rockchip/rkcif/Makefile     |   1 +
 .../platform/rockchip/rkcif/rkcif-capture-mipi.c   | 777 +++++++++++++++++++++
 .../platform/rockchip/rkcif/rkcif-capture-mipi.h   |  23 +
 .../media/platform/rockchip/rkcif/rkcif-common.h   |  29 +
 drivers/media/platform/rockchip/rkcif/rkcif-dev.c  |  12 +
 drivers/media/platform/rockchip/rkcif/rkcif-regs.h |  22 +
 6 files changed, 864 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkcif/Makefile b/drivers/media/platform/rockchip/rkcif/Makefile
index a36e294d569d..dca2bf45159f 100644
--- a/drivers/media/platform/rockchip/rkcif/Makefile
+++ b/drivers/media/platform/rockchip/rkcif/Makefile
@@ -2,6 +2,7 @@
 obj-$(CONFIG_VIDEO_ROCKCHIP_CIF) += rockchip-cif.o
 
 rockchip-cif-objs += rkcif-capture-dvp.o
+rockchip-cif-objs += rkcif-capture-mipi.o
 rockchip-cif-objs += rkcif-dev.o
 rockchip-cif-objs += rkcif-interface.o
 rockchip-cif-objs += rkcif-stream.o
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c b/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c
new file mode 100644
index 000000000000..1b81bcc067ef
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c
@@ -0,0 +1,777 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#include <linux/interrupt.h>
+
+#include <media/mipi-csi2.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-subdev.h>
+
+#include "rkcif-capture-mipi.h"
+#include "rkcif-common.h"
+#include "rkcif-interface.h"
+#include "rkcif-regs.h"
+#include "rkcif-stream.h"
+
+#define RK3568_MIPI_CTRL0_HIGH_ALIGN  BIT(31)
+#define RK3568_MIPI_CTRL0_UV_SWAP_EN  BIT(7)
+#define RK3568_MIPI_CTRL0_COMPACT_EN  BIT(6)
+#define RK3568_MIPI_CTRL0_CROP_EN     BIT(5)
+#define RK3568_MIPI_CTRL0_WRDDR(type) ((type) << 1)
+
+#define RKCIF_MIPI_CTRL0_DT_ID(id)    ((id) << 10)
+#define RKCIF_MIPI_CTRL0_VC_ID(id)    ((id) << 8)
+#define RKCIF_MIPI_CTRL0_CAP_EN	      BIT(0)
+
+#define RKCIF_MIPI_INT_FRAME0_END(id) BIT(8 + (id) * 2 + 0)
+#define RKCIF_MIPI_INT_FRAME1_END(id) BIT(8 + (id) * 2 + 1)
+
+static const struct rkcif_output_fmt mipi_out_fmts[] = {
+	/* YUV formats */
+	{
+		.fourcc = V4L2_PIX_FMT_YUYV,
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_1X16,
+		.depth = 16,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_YUV422_8B,
+			.type = RKCIF_MIPI_TYPE_RAW8,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_UYVY,
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_1X16,
+		.depth = 16,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_YUV422_8B,
+			.type = RKCIF_MIPI_TYPE_RAW8,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_YVYU,
+		.mbus_code = MEDIA_BUS_FMT_YVYU8_1X16,
+		.depth = 16,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_YUV422_8B,
+			.type = RKCIF_MIPI_TYPE_RAW8,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_VYUY,
+		.mbus_code = MEDIA_BUS_FMT_VYUY8_1X16,
+		.depth = 16,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_YUV422_8B,
+			.type = RKCIF_MIPI_TYPE_RAW8,
+		},
+	},
+	/* RGB formats */
+	{
+		.fourcc = V4L2_PIX_FMT_RGB24,
+		.mbus_code = MEDIA_BUS_FMT_RGB888_1X24,
+		.depth = 24,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RGB888,
+			.type = RKCIF_MIPI_TYPE_RGB888,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_BGR24,
+		.mbus_code = MEDIA_BUS_FMT_BGR888_1X24,
+		.depth = 24,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RGB888,
+			.type = RKCIF_MIPI_TYPE_RGB888,
+		},
+	},
+	/* Bayer formats */
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR8,
+		.mbus_code = MEDIA_BUS_FMT_SBGGR8_1X8,
+		.depth = 8,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW8,
+			.type = RKCIF_MIPI_TYPE_RAW8,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGBRG8,
+		.mbus_code = MEDIA_BUS_FMT_SGBRG8_1X8,
+		.depth = 8,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW8,
+			.type = RKCIF_MIPI_TYPE_RAW8,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGRBG8,
+		.mbus_code = MEDIA_BUS_FMT_SGRBG8_1X8,
+		.depth = 8,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW8,
+			.type = RKCIF_MIPI_TYPE_RAW8,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SRGGB8,
+		.mbus_code = MEDIA_BUS_FMT_SRGGB8_1X8,
+		.depth = 8,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW8,
+			.type = RKCIF_MIPI_TYPE_RAW8,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR10,
+		.mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
+		.depth = 10,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW10,
+			.type = RKCIF_MIPI_TYPE_RAW10,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR10P,
+		.mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
+		.depth = 10,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW10,
+			.compact = true,
+			.type = RKCIF_MIPI_TYPE_RAW10,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGBRG10,
+		.mbus_code = MEDIA_BUS_FMT_SGBRG10_1X10,
+		.depth = 10,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW10,
+			.type = RKCIF_MIPI_TYPE_RAW10,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGBRG10P,
+		.mbus_code = MEDIA_BUS_FMT_SGBRG10_1X10,
+		.depth = 10,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW10,
+			.compact = true,
+			.type = RKCIF_MIPI_TYPE_RAW10,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGRBG10,
+		.mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10,
+		.depth = 10,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW10,
+			.type = RKCIF_MIPI_TYPE_RAW10,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGRBG10P,
+		.mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10,
+		.depth = 10,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW10,
+			.compact = true,
+			.type = RKCIF_MIPI_TYPE_RAW10,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SRGGB10,
+		.mbus_code = MEDIA_BUS_FMT_SRGGB10_1X10,
+		.depth = 10,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW10,
+			.type = RKCIF_MIPI_TYPE_RAW10,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SRGGB10P,
+		.mbus_code = MEDIA_BUS_FMT_SRGGB10_1X10,
+		.depth = 10,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW10,
+			.compact = true,
+			.type = RKCIF_MIPI_TYPE_RAW10,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR12,
+		.mbus_code = MEDIA_BUS_FMT_SBGGR12_1X12,
+		.depth = 12,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW12,
+			.type = RKCIF_MIPI_TYPE_RAW12,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SBGGR12P,
+		.mbus_code = MEDIA_BUS_FMT_SBGGR12_1X12,
+		.depth = 12,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW12,
+			.compact = true,
+			.type = RKCIF_MIPI_TYPE_RAW12,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGBRG12,
+		.mbus_code = MEDIA_BUS_FMT_SGBRG12_1X12,
+		.depth = 12,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW12,
+			.type = RKCIF_MIPI_TYPE_RAW12,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGBRG12P,
+		.mbus_code = MEDIA_BUS_FMT_SGBRG12_1X12,
+		.depth = 12,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW12,
+			.compact = true,
+			.type = RKCIF_MIPI_TYPE_RAW12,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGRBG12,
+		.mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12,
+		.depth = 12,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW12,
+			.type = RKCIF_MIPI_TYPE_RAW12,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SGRBG12P,
+		.mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12,
+		.depth = 12,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW12,
+			.compact = true,
+			.type = RKCIF_MIPI_TYPE_RAW12,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SRGGB12,
+		.mbus_code = MEDIA_BUS_FMT_SRGGB12_1X12,
+		.depth = 12,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW12,
+			.type = RKCIF_MIPI_TYPE_RAW12,
+		},
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_SRGGB12P,
+		.mbus_code = MEDIA_BUS_FMT_SRGGB12_1X12,
+		.depth = 12,
+		.cplanes = 1,
+		.mipi = {
+			.dt = MIPI_CSI2_DT_RAW12,
+			.compact = true,
+			.type = RKCIF_MIPI_TYPE_RAW12,
+		},
+	},
+};
+
+static const struct rkcif_input_fmt mipi_in_fmts[] = {
+	/* YUV formats */
+	{
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_1X16,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_1X16,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_YVYU8_1X16,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_VYUY8_1X16,
+	},
+	/* RGB formats */
+	{
+		.mbus_code = MEDIA_BUS_FMT_RGB888_1X24,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_BGR888_1X24,
+	},
+	/* Bayer formats */
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR8_1X8,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG8_1X8,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG8_1X8,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB8_1X8,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG10_1X10,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB10_1X10,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SBGGR12_1X12,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGBRG12_1X12,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12,
+	},
+	{
+		.mbus_code = MEDIA_BUS_FMT_SRGGB12_1X12,
+	},
+};
+
+static u32
+rkcif_rk3568_mipi_ctrl0(struct rkcif_stream *stream,
+			const struct rkcif_output_fmt *active_out_fmt)
+{
+	u32 ctrl0 = 0;
+
+	ctrl0 |= RKCIF_MIPI_CTRL0_DT_ID(active_out_fmt->mipi.dt);
+	ctrl0 |= RKCIF_MIPI_CTRL0_CAP_EN;
+	ctrl0 |= RK3568_MIPI_CTRL0_CROP_EN;
+
+	if (active_out_fmt->mipi.compact)
+		ctrl0 |= RK3568_MIPI_CTRL0_COMPACT_EN;
+
+	switch (active_out_fmt->mipi.type) {
+	case RKCIF_MIPI_TYPE_RAW8:
+		break;
+	case RKCIF_MIPI_TYPE_RAW10:
+		ctrl0 |= RK3568_MIPI_CTRL0_WRDDR(0x1);
+		break;
+	case RKCIF_MIPI_TYPE_RAW12:
+		ctrl0 |= RK3568_MIPI_CTRL0_WRDDR(0x2);
+		break;
+	case RKCIF_MIPI_TYPE_RGB888:
+		ctrl0 |= RK3568_MIPI_CTRL0_WRDDR(0x3);
+		break;
+	case RKCIF_MIPI_TYPE_YUV422SP:
+		ctrl0 |= RK3568_MIPI_CTRL0_WRDDR(0x4);
+		break;
+	case RKCIF_MIPI_TYPE_YUV420SP:
+		ctrl0 |= RK3568_MIPI_CTRL0_WRDDR(0x5);
+		break;
+	case RKCIF_MIPI_TYPE_YUV400:
+		ctrl0 |= RK3568_MIPI_CTRL0_WRDDR(0x6);
+		break;
+	default:
+		break;
+	}
+
+	return ctrl0;
+}
+
+const struct rkcif_mipi_match_data rkcif_rk3568_vicap_mipi_match_data = {
+	.mipi_num = 1,
+	.mipi_ctrl0 = rkcif_rk3568_mipi_ctrl0,
+	.regs = {
+		[RKCIF_MIPI_CTRL] = 0x20,
+		[RKCIF_MIPI_INTEN] = 0xa4,
+		[RKCIF_MIPI_INTSTAT] = 0xa8,
+	},
+	.regs_id = {
+		[RKCIF_ID0] = {
+			[RKCIF_MIPI_CTRL0] = 0x00,
+			[RKCIF_MIPI_CTRL1] = 0x04,
+			[RKCIF_MIPI_FRAME0_ADDR_Y] = 0x24,
+			[RKCIF_MIPI_FRAME0_ADDR_UV] = 0x2c,
+			[RKCIF_MIPI_FRAME0_VLW_Y] = 0x34,
+			[RKCIF_MIPI_FRAME0_VLW_UV] = 0x3c,
+			[RKCIF_MIPI_FRAME1_ADDR_Y] = 0x28,
+			[RKCIF_MIPI_FRAME1_ADDR_UV] = 0x30,
+			[RKCIF_MIPI_FRAME1_VLW_Y] = 0x38,
+			[RKCIF_MIPI_FRAME1_VLW_UV] = 0x40,
+			[RKCIF_MIPI_CROP_START] = 0xbc,
+		},
+		[RKCIF_ID1] = {
+			[RKCIF_MIPI_CTRL0] = 0x08,
+			[RKCIF_MIPI_CTRL1] = 0x0c,
+			[RKCIF_MIPI_FRAME0_ADDR_Y] = 0x44,
+			[RKCIF_MIPI_FRAME0_ADDR_UV] = 0x4c,
+			[RKCIF_MIPI_FRAME0_VLW_Y] = 0x54,
+			[RKCIF_MIPI_FRAME0_VLW_UV] = 0x5c,
+			[RKCIF_MIPI_FRAME1_ADDR_Y] = 0x48,
+			[RKCIF_MIPI_FRAME1_ADDR_UV] = 0x50,
+			[RKCIF_MIPI_FRAME1_VLW_Y] = 0x58,
+			[RKCIF_MIPI_FRAME1_VLW_UV] = 0x60,
+			[RKCIF_MIPI_CROP_START] = 0xc0,
+		},
+		[RKCIF_ID2] = {
+			[RKCIF_MIPI_CTRL0] = 0x10,
+			[RKCIF_MIPI_CTRL1] = 0x14,
+			[RKCIF_MIPI_FRAME0_ADDR_Y] = 0x64,
+			[RKCIF_MIPI_FRAME0_ADDR_UV] = 0x6c,
+			[RKCIF_MIPI_FRAME0_VLW_Y] = 0x74,
+			[RKCIF_MIPI_FRAME0_VLW_UV] = 0x7c,
+			[RKCIF_MIPI_FRAME1_ADDR_Y] = 0x68,
+			[RKCIF_MIPI_FRAME1_ADDR_UV] = 0x70,
+			[RKCIF_MIPI_FRAME1_VLW_Y] = 0x78,
+			[RKCIF_MIPI_FRAME1_VLW_UV] = 0x80,
+			[RKCIF_MIPI_CROP_START] = 0xc4,
+		},
+		[RKCIF_ID3] = {
+			[RKCIF_MIPI_CTRL0] = 0x18,
+			[RKCIF_MIPI_CTRL1] = 0x1c,
+			[RKCIF_MIPI_FRAME0_ADDR_Y] = 0x84,
+			[RKCIF_MIPI_FRAME0_ADDR_UV] = 0x8c,
+			[RKCIF_MIPI_FRAME0_VLW_Y] = 0x94,
+			[RKCIF_MIPI_FRAME0_VLW_UV] = 0x9c,
+			[RKCIF_MIPI_FRAME1_ADDR_Y] = 0x88,
+			[RKCIF_MIPI_FRAME1_ADDR_UV] = 0x90,
+			[RKCIF_MIPI_FRAME1_VLW_Y] = 0x98,
+			[RKCIF_MIPI_FRAME1_VLW_UV] = 0xa0,
+			[RKCIF_MIPI_CROP_START] = 0xc8,
+		},
+	},
+	.blocks = {
+		{
+			.offset = 0x80,
+		},
+	},
+};
+
+static inline unsigned int rkcif_mipi_get_reg(struct rkcif_interface *interface,
+					      unsigned int index)
+{
+	struct rkcif_device *rkcif = interface->rkcif;
+	unsigned int block, offset, reg;
+
+	block = interface->index - RKCIF_MIPI_BASE;
+
+	if (WARN_ON_ONCE(block > RKCIF_MIPI_MAX - RKCIF_MIPI_BASE) ||
+	    WARN_ON_ONCE(index > RKCIF_MIPI_REGISTER_MAX))
+		return RKCIF_REGISTER_NOTSUPPORTED;
+
+	offset = rkcif->match_data->mipi->blocks[block].offset;
+	reg = rkcif->match_data->mipi->regs[index];
+	if (reg == RKCIF_REGISTER_NOTSUPPORTED)
+		return reg;
+
+	return offset + reg;
+}
+
+static inline unsigned int rkcif_mipi_id_get_reg(struct rkcif_stream *stream,
+						 unsigned int index)
+{
+	struct rkcif_device *rkcif = stream->rkcif;
+	unsigned int block, id, offset, reg;
+
+	block = stream->interface->index - RKCIF_MIPI_BASE;
+	id = stream->id;
+
+	if (WARN_ON_ONCE(block > RKCIF_MIPI_MAX - RKCIF_MIPI_BASE) ||
+	    WARN_ON_ONCE(id > RKCIF_ID_MAX) ||
+	    WARN_ON_ONCE(index > RKCIF_MIPI_ID_REGISTER_MAX))
+		return RKCIF_REGISTER_NOTSUPPORTED;
+
+	offset = rkcif->match_data->mipi->blocks[block].offset;
+	reg = rkcif->match_data->mipi->regs_id[id][index];
+	if (reg == RKCIF_REGISTER_NOTSUPPORTED)
+		return reg;
+
+	return offset + reg;
+}
+
+static inline __maybe_unused void
+rkcif_mipi_write(struct rkcif_interface *interface, unsigned int index, u32 val)
+{
+	unsigned int addr = rkcif_mipi_get_reg(interface, index);
+
+	if (addr == RKCIF_REGISTER_NOTSUPPORTED)
+		return;
+
+	writel(val, interface->rkcif->base_addr + addr);
+}
+
+static inline __maybe_unused void
+rkcif_mipi_stream_write(struct rkcif_stream *stream, unsigned int index,
+			u32 val)
+{
+	unsigned int addr = rkcif_mipi_id_get_reg(stream, index);
+
+	if (addr == RKCIF_REGISTER_NOTSUPPORTED)
+		return;
+
+	writel(val, stream->rkcif->base_addr + addr);
+}
+
+static inline __maybe_unused u32
+rkcif_mipi_read(struct rkcif_interface *interface, unsigned int index)
+{
+	unsigned int addr = rkcif_mipi_get_reg(interface, index);
+
+	if (addr == RKCIF_REGISTER_NOTSUPPORTED)
+		return 0;
+
+	return readl(interface->rkcif->base_addr + addr);
+}
+
+static inline __maybe_unused u32
+rkcif_mipi_stream_read(struct rkcif_stream *stream, unsigned int index)
+{
+	unsigned int addr = rkcif_mipi_id_get_reg(stream, index);
+
+	if (addr == RKCIF_REGISTER_NOTSUPPORTED)
+		return 0;
+
+	return readl(stream->rkcif->base_addr + addr);
+}
+
+static void rkcif_mipi_queue_buffer(struct rkcif_stream *stream,
+				    unsigned int index)
+{
+	struct rkcif_buffer *buffer = stream->buffers[index];
+	u32 frm_addr_y, frm_addr_uv;
+
+	frm_addr_y = index ? RKCIF_MIPI_FRAME1_ADDR_Y :
+			     RKCIF_MIPI_FRAME0_ADDR_Y;
+	frm_addr_uv = index ? RKCIF_MIPI_FRAME1_ADDR_UV :
+			      RKCIF_MIPI_FRAME0_ADDR_UV;
+
+	rkcif_mipi_stream_write(stream, frm_addr_y,
+				buffer->buff_addr[RKCIF_PLANE_Y]);
+	rkcif_mipi_stream_write(stream, frm_addr_uv,
+				buffer->buff_addr[RKCIF_PLANE_UV]);
+}
+
+static int rkcif_mipi_start_streaming(struct rkcif_stream *stream)
+{
+	struct rkcif_interface *interface = stream->interface;
+	const struct rkcif_output_fmt *active_out_fmt;
+	const struct rkcif_mipi_match_data *match_data;
+	struct v4l2_subdev_state *state;
+	u32 ctrl0 = 0, ctrl1 = 0, int_temp = 0, int_mask = 0, vlw = 0;
+	u16 height, width;
+	int ret = -EINVAL;
+
+	state = v4l2_subdev_lock_and_get_active_state(&interface->sd);
+
+	active_out_fmt = rkcif_stream_find_output_fmt(stream, false,
+						      stream->pix.pixelformat);
+	if (!active_out_fmt)
+		goto out;
+
+	height = stream->pix.height;
+	width = stream->pix.width;
+	vlw = stream->pix.plane_fmt[0].bytesperline;
+
+	match_data = stream->rkcif->match_data->mipi;
+	if (match_data->mipi_ctrl0)
+		ctrl0 = match_data->mipi_ctrl0(stream, active_out_fmt);
+
+	ctrl1 = RKCIF_XY_COORD(width, height);
+
+	int_mask |= RKCIF_MIPI_INT_FRAME0_END(stream->id);
+	int_mask |= RKCIF_MIPI_INT_FRAME1_END(stream->id);
+
+	int_temp = rkcif_mipi_read(interface, RKCIF_MIPI_INTEN);
+	int_temp |= int_mask;
+	rkcif_mipi_write(interface, RKCIF_MIPI_INTEN, int_temp);
+
+	int_temp = rkcif_mipi_read(interface, RKCIF_MIPI_INTSTAT);
+	int_temp &= ~int_mask;
+	rkcif_mipi_write(interface, RKCIF_MIPI_INTSTAT, int_temp);
+
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_FRAME0_VLW_Y, vlw);
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_FRAME1_VLW_Y, vlw);
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_FRAME0_VLW_UV, vlw);
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_FRAME1_VLW_UV, vlw);
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_CROP_START, 0x0);
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_CTRL1, ctrl1);
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_CTRL0, ctrl0);
+
+	ret = 0;
+
+out:
+	v4l2_subdev_unlock_state(state);
+	return ret;
+}
+
+static void rkcif_mipi_stop_streaming(struct rkcif_stream *stream)
+{
+	struct rkcif_interface *interface = stream->interface;
+	struct v4l2_subdev_state *state;
+	u32 int_temp = 0, int_mask = 0;
+
+	state = v4l2_subdev_lock_and_get_active_state(&interface->sd);
+
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_CTRL0, 0);
+
+	int_mask |= RKCIF_MIPI_INT_FRAME0_END(stream->id);
+	int_mask |= RKCIF_MIPI_INT_FRAME1_END(stream->id);
+
+	int_temp = rkcif_mipi_read(interface, RKCIF_MIPI_INTEN);
+	int_temp &= ~int_mask;
+	rkcif_mipi_write(interface, RKCIF_MIPI_INTEN, int_temp);
+
+	int_temp = rkcif_mipi_read(interface, RKCIF_MIPI_INTSTAT);
+	int_temp &= ~int_mask;
+	rkcif_mipi_write(interface, RKCIF_MIPI_INTSTAT, int_temp);
+
+	stream->stopping = false;
+
+	v4l2_subdev_unlock_state(state);
+}
+
+static void rkcif_mipi_set_crop(struct rkcif_stream *stream, u16 left, u16 top)
+{
+	u32 val;
+
+	val = RKCIF_XY_COORD(left, top);
+	rkcif_mipi_stream_write(stream, RKCIF_MIPI_CROP_START, val);
+}
+
+irqreturn_t rkcif_mipi_isr(int irq, void *ctx)
+{
+	struct device *dev = ctx;
+	struct rkcif_device *rkcif = dev_get_drvdata(dev);
+	irqreturn_t ret = IRQ_NONE;
+	u32 intstat;
+
+	for (unsigned int i = 0; i < rkcif->match_data->mipi->mipi_num; i++) {
+		enum rkcif_interface_index index = RKCIF_MIPI_BASE + i;
+		struct rkcif_interface *interface = &rkcif->interfaces[index];
+
+		intstat = rkcif_mipi_read(interface, RKCIF_MIPI_INTSTAT);
+		rkcif_mipi_write(interface, RKCIF_MIPI_INTSTAT, intstat);
+
+		for (unsigned int j = 0; j < interface->streams_num; j++) {
+			struct rkcif_stream *stream = &interface->streams[j];
+
+			if (intstat & RKCIF_MIPI_INT_FRAME0_END(stream->id) ||
+			    intstat & RKCIF_MIPI_INT_FRAME1_END(stream->id)) {
+				ret = IRQ_HANDLED;
+
+				if (stream->stopping) {
+					rkcif_mipi_stop_streaming(stream);
+					wake_up(&stream->wq_stopped);
+					continue;
+				}
+
+				rkcif_stream_pingpong(stream);
+			}
+		}
+	}
+
+	return ret;
+}
+
+int rkcif_mipi_register(struct rkcif_device *rkcif)
+{
+	int ret;
+
+	if (!rkcif->match_data->mipi)
+		return 0;
+
+	for (unsigned int i = 0; i < rkcif->match_data->mipi->mipi_num; i++) {
+		enum rkcif_interface_index index = RKCIF_MIPI_BASE + i;
+		struct rkcif_interface *interface = &rkcif->interfaces[index];
+
+		interface->index = index;
+		interface->type = RKCIF_IF_MIPI;
+		interface->in_fmts = mipi_in_fmts;
+		interface->in_fmts_num = ARRAY_SIZE(mipi_in_fmts);
+		interface->set_crop = rkcif_mipi_set_crop;
+		interface->streams_num = 0;
+		ret = rkcif_interface_register(rkcif, interface);
+		if (ret)
+			continue;
+
+		for (unsigned int j = 0; j < RKCIF_ID_MAX; j++) {
+			struct rkcif_stream *stream = &interface->streams[j];
+
+			stream->id = j;
+			stream->interface = interface;
+			stream->out_fmts = mipi_out_fmts;
+			stream->out_fmts_num = ARRAY_SIZE(mipi_out_fmts);
+			stream->queue_buffer = rkcif_mipi_queue_buffer;
+			stream->start_streaming = rkcif_mipi_start_streaming;
+			stream->stop_streaming = rkcif_mipi_stop_streaming;
+			ret = rkcif_stream_register(rkcif, stream);
+			if (ret)
+				goto err;
+			interface->streams_num++;
+		}
+	}
+
+	return 0;
+
+err:
+	for (unsigned int i = 0; i < rkcif->match_data->mipi->mipi_num; i++) {
+		enum rkcif_interface_index index = RKCIF_MIPI_BASE + i;
+		struct rkcif_interface *interface = &rkcif->interfaces[index];
+
+		for (unsigned int j = 0; j < interface->streams_num; j++)
+			rkcif_stream_unregister(&interface->streams[j]);
+
+		rkcif_interface_unregister(interface);
+	}
+	return ret;
+}
+
+void rkcif_mipi_unregister(struct rkcif_device *rkcif)
+{
+	if (!rkcif->match_data->mipi)
+		return;
+
+	for (unsigned int i = 0; i < rkcif->match_data->mipi->mipi_num; i++) {
+		enum rkcif_interface_index index = RKCIF_MIPI_BASE + i;
+		struct rkcif_interface *interface = &rkcif->interfaces[index];
+
+		for (unsigned int j = 0; j < interface->streams_num; j++)
+			rkcif_stream_unregister(&interface->streams[j]);
+
+		rkcif_interface_unregister(interface);
+	}
+}
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.h b/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.h
new file mode 100644
index 000000000000..7f16eadc474c
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Rockchip Camera Interface (CIF) Driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2025 Michael Riesch <michael.riesch@wolfvision.net>
+ * Copyright (C) 2025 Collabora, Ltd.
+ */
+
+#ifndef _RKCIF_CAPTURE_MIPI_H
+#define _RKCIF_CAPTURE_MIPI_H
+
+#include "rkcif-common.h"
+
+extern const struct rkcif_mipi_match_data rkcif_rk3568_vicap_mipi_match_data;
+
+int rkcif_mipi_register(struct rkcif_device *rkcif);
+
+void rkcif_mipi_unregister(struct rkcif_device *rkcif);
+
+irqreturn_t rkcif_mipi_isr(int irq, void *ctx);
+
+#endif
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-common.h b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
index c6ec578e1049..dd92cfbc879f 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-common.h
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
@@ -73,6 +73,17 @@ enum rkcif_interface_type {
 	RKCIF_IF_MIPI,
 };
 
+enum rkcif_mipi_format_type {
+	RKCIF_MIPI_TYPE_INVALID,
+	RKCIF_MIPI_TYPE_RAW8,
+	RKCIF_MIPI_TYPE_RAW10,
+	RKCIF_MIPI_TYPE_RAW12,
+	RKCIF_MIPI_TYPE_RGB888,
+	RKCIF_MIPI_TYPE_YUV422SP,
+	RKCIF_MIPI_TYPE_YUV420SP,
+	RKCIF_MIPI_TYPE_YUV400,
+};
+
 struct rkcif_buffer {
 	struct vb2_v4l2_buffer vb;
 	struct list_head queue;
@@ -107,9 +118,15 @@ struct rkcif_output_fmt {
 	u32 fourcc;
 	u32 mbus_code;
 	u8 cplanes;
+	u8 depth;
 
 	union {
 		u32 dvp_fmt_val;
+		struct {
+			u8 dt;
+			bool compact;
+			enum rkcif_mipi_format_type type;
+		} mipi;
 	};
 };
 
@@ -184,6 +201,17 @@ struct rkcif_interface {
 	void (*set_crop)(struct rkcif_stream *stream, u16 left, u16 top);
 };
 
+struct rkcif_mipi_match_data {
+	unsigned int mipi_num;
+	unsigned int regs[RKCIF_MIPI_REGISTER_MAX];
+	unsigned int regs_id[RKCIF_ID_MAX][RKCIF_MIPI_ID_REGISTER_MAX];
+	u32 (*mipi_ctrl0)(struct rkcif_stream *stream,
+			  const struct rkcif_output_fmt *active_out_fmt);
+	struct {
+		unsigned int offset;
+	} blocks[RKCIF_MIPI_MAX - RKCIF_MIPI_BASE];
+};
+
 struct rkcif_dvp_match_data {
 	const struct rkcif_input_fmt *in_fmts;
 	unsigned int in_fmts_num;
@@ -199,6 +227,7 @@ struct rkcif_match_data {
 	const char *const *clks;
 	unsigned int clks_num;
 	const struct rkcif_dvp_match_data *dvp;
+	const struct rkcif_mipi_match_data *mipi;
 };
 
 struct rkcif_device {
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
index addc118ff8bf..b4cf1146f131 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
@@ -24,6 +24,7 @@
 #include <media/v4l2-mc.h>
 
 #include "rkcif-capture-dvp.h"
+#include "rkcif-capture-mipi.h"
 #include "rkcif-common.h"
 
 static const char *const px30_vip_clks[] = {
@@ -49,6 +50,7 @@ static const struct rkcif_match_data rk3568_vicap_match_data = {
 	.clks = rk3568_vicap_clks,
 	.clks_num = ARRAY_SIZE(rk3568_vicap_clks),
 	.dvp = &rkcif_rk3568_vicap_dvp_match_data,
+	.mipi = &rkcif_rk3568_vicap_mipi_match_data,
 };
 
 static const struct of_device_id rkcif_plat_of_match[] = {
@@ -72,14 +74,21 @@ static int rkcif_register(struct rkcif_device *rkcif)
 	if (ret && ret != -ENODEV)
 		goto err;
 
+	ret = rkcif_mipi_register(rkcif);
+	if (ret && ret != -ENODEV)
+		goto err_dvp_unregister;
+
 	return 0;
 
+err_dvp_unregister:
+	rkcif_dvp_unregister(rkcif);
 err:
 	return ret;
 }
 
 static void rkcif_unregister(struct rkcif_device *rkcif)
 {
+	rkcif_mipi_unregister(rkcif);
 	rkcif_dvp_unregister(rkcif);
 }
 
@@ -128,6 +137,9 @@ static irqreturn_t rkcif_isr(int irq, void *ctx)
 	if (rkcif_dvp_isr(irq, ctx) == IRQ_HANDLED)
 		ret = IRQ_HANDLED;
 
+	if (rkcif_mipi_isr(irq, ctx) == IRQ_HANDLED)
+		ret = IRQ_HANDLED;
+
 	return ret;
 }
 
diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-regs.h b/drivers/media/platform/rockchip/rkcif/rkcif-regs.h
index 91d42d31fd10..3cf7ee19de30 100644
--- a/drivers/media/platform/rockchip/rkcif/rkcif-regs.h
+++ b/drivers/media/platform/rockchip/rkcif/rkcif-regs.h
@@ -128,4 +128,26 @@ enum rkcif_dvp_register_index {
 	RKCIF_DVP_REGISTER_MAX
 };
 
+enum rkcif_mipi_register_index {
+	RKCIF_MIPI_CTRL,
+	RKCIF_MIPI_INTEN,
+	RKCIF_MIPI_INTSTAT,
+	RKCIF_MIPI_REGISTER_MAX
+};
+
+enum rkcif_mipi_id_register_index {
+	RKCIF_MIPI_CTRL0,
+	RKCIF_MIPI_CTRL1,
+	RKCIF_MIPI_FRAME0_ADDR_Y,
+	RKCIF_MIPI_FRAME0_ADDR_UV,
+	RKCIF_MIPI_FRAME0_VLW_Y,
+	RKCIF_MIPI_FRAME0_VLW_UV,
+	RKCIF_MIPI_FRAME1_ADDR_Y,
+	RKCIF_MIPI_FRAME1_ADDR_UV,
+	RKCIF_MIPI_FRAME1_VLW_Y,
+	RKCIF_MIPI_FRAME1_VLW_UV,
+	RKCIF_MIPI_CROP_START,
+	RKCIF_MIPI_ID_REGISTER_MAX
+};
+
 #endif

-- 
2.39.5

[PATCH v12 13/18] arm64: defconfig: enable rockchip camera interface and mipi csi-2 receiver

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

The Rockchip Camera Interface (CIF) and the Rockchip MIPI CSI-2 Receiver
are featured in many Rockchip SoCs in different variations.
Enable the drivers for them in the default configuration.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 arch/arm64/configs/defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index e3a2d37bd104..86e39240979a 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -883,6 +883,8 @@ CONFIG_VIDEO_RENESAS_FCP=m
 CONFIG_VIDEO_RENESAS_FDP1=m
 CONFIG_VIDEO_RENESAS_VSP1=m
 CONFIG_VIDEO_RCAR_DRIF=m
+CONFIG_VIDEO_ROCKCHIP_CIF=m
+CONFIG_VIDEO_ROCKCHIP_CSI=m
 CONFIG_VIDEO_ROCKCHIP_RGA=m
 CONFIG_VIDEO_SAMSUNG_EXYNOS_GSC=m
 CONFIG_VIDEO_SAMSUNG_S5P_JPEG=m

-- 
2.39.5

[PATCH v12 14/18] arm64: dts: rockchip: add the vip node to px30

[Michael Riesch via B4 Relay]

From: Mehdi Djait <mehdi.djait@bootlin.com>

Add the device tree node for the PX30 Video Input Processor (VIP).

Signed-off-by: Mehdi Djait <mehdi.djait@bootlin.com>
[added cosmetic changes]
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 arch/arm64/boot/dts/rockchip/px30.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index 46f64cd33b9b..ef52879d6a73 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -1280,6 +1280,18 @@ isp_mmu: iommu@ff4a8000 {
 		#iommu-cells = <0>;
 	};
 
+	cif: video-capture@ff490000 {
+		compatible = "rockchip,px30-vip";
+		reg = <0x0 0xff490000 0x0 0x200>;
+		interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru ACLK_CIF>, <&cru HCLK_CIF>, <&cru PCLK_CIF>;
+		clock-names = "aclk", "hclk", "pclk";
+		power-domains = <&power PX30_PD_VI>;
+		resets = <&cru SRST_CIF_A>, <&cru SRST_CIF_H>, <&cru SRST_CIF_PCLKIN>;
+		reset-names = "axi", "ahb", "pclkin";
+		status = "disabled";
+	};
+
 	qos_gmac: qos@ff518000 {
 		compatible = "rockchip,px30-qos", "syscon";
 		reg = <0x0 0xff518000 0x0 0x20>;

-- 
2.39.5

[PATCH v12 15/18] arm64: dts: rockchip: add vicap node to rk356x

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add the device tree node for the RK356x Video Capture (VICAP) unit.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 44 +++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
index fd2214b6fad4..e0e4dc85a3a9 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
@@ -564,6 +564,50 @@ gpu: gpu@fde60000 {
 		status = "disabled";
 	};
 
+	vicap: video-capture@fdfe0000 {
+		compatible = "rockchip,rk3568-vicap";
+		reg = <0x0 0xfdfe0000 0x0 0x200>;
+		interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
+		assigned-clocks = <&cru DCLK_VICAP>;
+		assigned-clock-rates = <300000000>;
+		clocks = <&cru ACLK_VICAP>, <&cru HCLK_VICAP>,
+			 <&cru DCLK_VICAP>, <&cru ICLK_VICAP_G>;
+		clock-names = "aclk", "hclk", "dclk", "iclk";
+		iommus = <&vicap_mmu>;
+		power-domains = <&power RK3568_PD_VI>;
+		resets = <&cru SRST_A_VICAP>, <&cru SRST_H_VICAP>,
+			 <&cru SRST_D_VICAP>, <&cru SRST_P_VICAP>,
+			 <&cru SRST_I_VICAP>;
+		reset-names = "arst", "hrst", "drst", "prst", "irst";
+		rockchip,grf = <&grf>;
+		status = "disabled";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			vicap_dvp: port@0 {
+				reg = <0>;
+			};
+
+			vicap_mipi: port@1 {
+				reg = <1>;
+			};
+		};
+	};
+
+	vicap_mmu: iommu@fdfe0800 {
+		compatible = "rockchip,rk3568-iommu";
+		reg = <0x0 0xfdfe0800 0x0 0x100>;
+		interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru ACLK_VICAP>, <&cru HCLK_VICAP>;
+		clock-names = "aclk", "iface";
+		#iommu-cells = <0>;
+		power-domains = <&power RK3568_PD_VI>;
+		rockchip,disable-mmu-reset;
+		status = "disabled";
+	};
+
 	vpu: video-codec@fdea0400 {
 		compatible = "rockchip,rk3568-vpu";
 		reg = <0x0 0xfdea0000 0x0 0x800>;

-- 
2.39.5

[PATCH v12 16/18] arm64: dts: rockchip: add mipi csi-2 receiver node to rk356x

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add the device tree node for the RK356x MIPI CSI-2 Receiver.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 34 +++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
index e0e4dc85a3a9..36365e6998dc 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
@@ -564,6 +564,36 @@ gpu: gpu@fde60000 {
 		status = "disabled";
 	};
 
+	csi: csi@fdfb0000 {
+		compatible = "rockchip,rk3568-mipi-csi";
+		reg = <0x0 0xfdfb0000 0x0 0x10000>;
+		interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "err1", "err2";
+		clocks = <&cru PCLK_CSI2HOST1>;
+		phys = <&csi_dphy>;
+		power-domains = <&power RK3568_PD_VI>;
+		resets = <&cru SRST_P_CSI2HOST1>;
+		status = "disabled";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			csi_in: port@0 {
+				reg = <0>;
+			};
+
+			csi_out: port@1 {
+				reg = <1>;
+
+				csi_output: endpoint {
+					remote-endpoint = <&vicap_mipi_input>;
+				};
+			};
+		};
+	};
+
 	vicap: video-capture@fdfe0000 {
 		compatible = "rockchip,rk3568-vicap";
 		reg = <0x0 0xfdfe0000 0x0 0x200>;
@@ -592,6 +622,10 @@ vicap_dvp: port@0 {
 
 			vicap_mipi: port@1 {
 				reg = <1>;
+
+				vicap_mipi_input: endpoint {
+					remote-endpoint = <&csi_output>;
+				};
 			};
 		};
 	};

-- 
2.39.5

[PATCH v12 17/18] arm64: dts: rockchip: enable vicap dvp on wolfvision pf5 io expander

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

The Digital Video Port (DVP, the 16-bit variant) of the RK3568 VICAP
is broken out to the PF5 mainboard expansion header.
Enable it in the device tree overlay for the WolfVision PF5 IO
Expander board.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 .../rockchip/rk3568-wolfvision-pf5-io-expander.dtso  | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-wolfvision-pf5-io-expander.dtso b/arch/arm64/boot/dts/rockchip/rk3568-wolfvision-pf5-io-expander.dtso
index 048933de2943..8cfce71dd318 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-wolfvision-pf5-io-expander.dtso
+++ b/arch/arm64/boot/dts/rockchip/rk3568-wolfvision-pf5-io-expander.dtso
@@ -11,6 +11,7 @@
 #include <dt-bindings/clock/rk3568-cru.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/media/video-interfaces.h>
 #include <dt-bindings/pinctrl/rockchip.h>
 
 &{/} {
@@ -134,3 +135,22 @@ &usb2phy0_host {
 	phy-supply = <&usb_host_vbus>;
 	status = "okay";
 };
+
+&vicap {
+	pinctrl-names = "default";
+	pinctrl-0 = <&cif_clk &cif_dvp_clk &cif_dvp_bus16>;
+	status = "okay";
+};
+
+&vicap_dvp {
+	vicap_dvp_input: endpoint {
+		bus-type = <MEDIA_BUS_TYPE_BT656>;
+		bus-width = <16>;
+		pclk-sample = <MEDIA_PCLK_SAMPLE_DUAL_EDGE>;
+		rockchip,dvp-clk-delay = <10>;
+	};
+};
+
+&vicap_mmu {
+	status = "okay";
+};

-- 
2.39.5

[PATCH v12 18/18] arm64: dts: rockchip: add overlay for radxa camera 8m

[Michael Riesch via B4 Relay]

From: Michael Riesch <michael.riesch@collabora.com>

Add a device tree overlay for the Radxa Camera 8M featuring the Sony
IMX219 image sensor. The sensor is connected to the RK3568 VICAP MIPI
CSI-2 port, since as at the time of writing this there is no mainline
support for the RK3568 ISP.

Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
---
 arch/arm64/boot/dts/rockchip/Makefile              |  5 ++
 .../dts/rockchip/rk3568-rock-3a-radxa-cam8m.dtso   | 90 ++++++++++++++++++++++
 2 files changed, 95 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index ad684e3831bc..d6b969a0dab9 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -146,6 +146,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts433.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-radxa-e25.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-roc-pc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3a.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3a-radxa-cam8m.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3b.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-display-vz.dtbo
@@ -243,6 +244,10 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rockpro64-v2-screen.dtb
 rk3399-rockpro64-v2-screen-dtbs := rk3399-rockpro64-v2.dtb \
 	rk3399-rockpro64-screen.dtbo
 
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3a-radxa-8m-cam.dtb
+rk3568-rock-3a-radxa-8m-cam-dtbs := rk3568-rock-3a.dtb \
+	rk3568-rock-3a-radxa-cam8m.dtbo
+
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-vz-2-uhd.dtb
 rk3568-wolfvision-pf5-vz-2-uhd-dtbs := rk3568-wolfvision-pf5.dtb \
 	rk3568-wolfvision-pf5-display-vz.dtbo \
diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a-radxa-cam8m.dtso b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a-radxa-cam8m.dtso
new file mode 100644
index 000000000000..4db177b1c701
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a-radxa-cam8m.dtso
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device tree overlay for the Radxa Camera 8M attached to the CSI port of
+ * the Radxa ROCK 3A.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+
+&{/} {
+	clk_cam: clock-cam {
+		compatible = "fixed-clock";
+		clock-frequency = <24000000>;
+		clock-output-names = "clk_cam";
+		#clock-cells = <0>;
+	};
+
+	vcc_camera: regulator-vcc-camera {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio4 RK_PD2 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&camera_power_en>;
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-name = "vcc_camera";
+		vin-supply = <&vcc_cam>;
+	};
+};
+
+&i2c5 {
+	#address-cells = <1>;
+	clock-frequency = <100000>;
+	#size-cells = <0>;
+	status = "okay";
+
+	imx219: camera-sensor@10 {
+		compatible = "sony,imx219";
+		reg = <0x10>;
+		clocks = <&clk_cam>;
+		clock-names = "xclk";
+		VANA-supply = <&vcc_camera>;
+		VDIG-supply = <&vcc_camera>;
+		VDDL-supply = <&vcc_camera>;
+
+		port {
+			imx219_output: endpoint {
+				data-lanes = <1 2>;
+				link-frequencies = /bits/ 64 <456000000>;
+				remote-endpoint = <&csi_input>;
+			};
+		};
+	};
+};
+
+&pinctrl {
+	cam {
+		camera_power_en: camera-power-en-pinctrl {
+			rockchip,pins = <4 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&csi {
+	status = "okay";
+};
+
+&csi_dphy {
+	status = "okay";
+};
+
+&csi_in {
+	csi_input: endpoint {
+		data-lanes = <1 2>;
+		link-frequencies = /bits/ 64 <456000000>;
+		remote-endpoint = <&imx219_output>;
+	};
+};
+
+&vicap {
+	status = "okay";
+};
+
+&vicap_mmu {
+	status = "okay";
+};

-- 
2.39.5

Re: [PATCH v12 05/18] media: dt-bindings: add rockchip rk3568 mipi csi-2 receiver

[Rob Herring (Arm)]

On Tue, 14 Oct 2025 15:01:51 +0200, Michael Riesch wrote:
> Add documentation for the Rockchip RK3568 MIPI CSI-2 Receiver.
> 
> Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
> Reviewed-by: Bryan O'Donoghue <bod@kernel.org>
> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
> ---
>  .../bindings/media/rockchip,rk3568-mipi-csi.yaml   | 146 +++++++++++++++++++++
>  MAINTAINERS                                        |   6 +
>  2 files changed, 152 insertions(+)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/slimbus/slimbus.example.dtb: slim@28080000 (qcom,slim-ngd-v1.5.0): 'audio-codec@1,0' does not match any of the regexes: '^pinctrl-[0-9]+$', '^slim@[0-9a-f]+$'
	from schema $id: http://devicetree.org/schemas/slimbus/qcom,slim-ngd.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/slimbus/slimbus.example.dtb: slim@28080000 (qcom,slim-ngd-v1.5.0): #address-cells: 1 was expected
	from schema $id: http://devicetree.org/schemas/slimbus/qcom,slim-ngd.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/slimbus/slimbus.example.dtb: slim@28080000 (qcom,slim-ngd-v1.5.0): 'dmas' is a required property
	from schema $id: http://devicetree.org/schemas/slimbus/qcom,slim-ngd.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/slimbus/slimbus.example.dtb: slim@28080000 (qcom,slim-ngd-v1.5.0): 'dma-names' is a required property
	from schema $id: http://devicetree.org/schemas/slimbus/qcom,slim-ngd.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.example.dtb: csi@fdfb0000 (rockchip,rk3568-mipi-csi): interrupt-names:0: 'err1' was expected
	from schema $id: http://devicetree.org/schemas/media/rockchip,rk3568-mipi-csi.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/rockchip,rk3568-mipi-csi.example.dtb: csi@fdfb0000 (rockchip,rk3568-mipi-csi): interrupt-names:1: 'err2' was expected
	from schema $id: http://devicetree.org/schemas/media/rockchip,rk3568-mipi-csi.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240220-rk3568-vicap-v12-5-c6dbece6bb98@collabora.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.

Re: [PATCH v12 00/18] media: rockchip: add a driver for the rockchip camera interface

[Bryan O'Donoghue]

On 14/10/2025 14:01, Michael Riesch via B4 Relay wrote:
> Habidere,
> 
> This series introduces support for the Rockchip Camera Interface (CIF),
> which is featured in many Rockchip SoCs in different variations.
> For example, the PX30 Video Input Processor (VIP) is able to receive
> video data via the Digital Video Port (DVP, a parallel data interface)
> and transfer it into system memory using a double-buffering mechanism
> called ping-pong mode.
> The RK3568 Video Capture (VICAP) unit, on the other hand, features a
> DVP and a MIPI CSI-2 receiver that can receive video data independently
> (both using the ping-pong scheme).
> The different variants may have additional features, such as scaling
> and/or cropping.
> Finally, the RK3588 VICAP unit constitutes an essential piece of the
> camera interface with one DVP, six MIPI CSI-2 receivers, scale/crop
> units, and a data path multiplexer (to scaler units, to ISP, ...).
> 
> The v12 of the series adds a media controller centric V4L2 device driver
> for the Rockchip CIF with
>   - support for the PX30 VIP (not tested, though, due to the lack of HW)
>   - support for the RK3568 VICAP, including
>      - capturing frames from the DVP
>      - capturing frames from the MIPI CSI-2 receiver
>   - abstraction for the ping-pong scheme to allow for future extensions
>   - abstraction for the INTERFACE and CROP parts to allow for future
>     extensions
>   - initial support for different virtual channels (not tested, though,
>     due to the lack of HW)
> and a V4L2 subdevice driver for the Rockchip MIPI CSI-2 Receiver.
> 
> The RK3568 DVP has been tested by Gerald on a WolfVision PF5 hardware,
> the RK3568 MIPI CSI-2 have been tested by me on a Radxa ROCK 3A + Radxa
> Camera 8M.
> 
> The driver can be readily extended to provide support for the RK3588
> VICAP variant. In order to keep things simple, however, this extension
> shall be submitted separately.
> 
> Looking forward to your comments!
> 
> To: Mehdi Djait <mehdi.djait@linux.intel.com>
> To: Maxime Chevallier <maxime.chevallier@bootlin.com>
> To: Théo Lebrun <theo.lebrun@bootlin.com>
> To: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> To: Gerald Loacker <gerald.loacker@wolfvision.net>
> To: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> To: Markus Elfring <Markus.Elfring@web.de>
> To: Sakari Ailus <sakari.ailus@iki.fi>
> To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> To: Mauro Carvalho Chehab <mchehab@kernel.org>
> To: Rob Herring <robh+dt@kernel.org>
> To: Krzysztof Kozlowski <krzk+dt@kernel.org>
> To: Conor Dooley <conor+dt@kernel.org>
> To: Heiko Stuebner <heiko@sntech.de>
> To: Kever Yang <kever.yang@rock-chips.com>
> To: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> To: Sebastian Reichel <sebastian.reichel@collabora.com>
> To: Collabora Kernel Team <kernel@collabora.com>
> To: Paul Kocialkowski <paulk@sys-base.io>
> To: Alexander Shiyan <eagle.alexander923@gmail.com>
> To: Val Packett <val@packett.cool>
> To: Rob Herring <robh@kernel.org>
> To: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: linux-media@vger.kernel.org
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-rockchip@lists.infradead.org
> Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
> 
> Changes in v12:
> - added Radxa Camera 8M device tree overlay
> - rebased onto v6.18-rc1
> - fixed IOMMU pagefaults caused by wrong VLW (Mehdi)
> - fixed indentation of register defines in -regs.h (Sakari)
> - renamed CSI-2 receiver interrupts (Rob)
> - added MEDIA_BUS_TYPE_* as comments in DT bindings (Bryan)
> - added newline in rkcif-dev.c (Bryan)
> - Link to v11: https://lore.kernel.org/r/20240220-rk3568-vicap-v11-0-af0eada54e5d@collabora.com
> 
> Changes in v11:
> - rkcif: split large driver patch (6/13 of v10) into smaller
>    patches (6-11/17 of v11) (Bryan)
> - rkcsi: replaced devm_reset_control_array_get_exclusive with
>    devm_reset_control_get_exclusive (Philipp)
> - Link to v10: https://lore.kernel.org/r/20240220-rk3568-vicap-v10-0-62d8a7b209b4@collabora.com
> 
> Changes in v10:
> - rkcsi: fixed error handling in rkcsi_start (Bryan)
> - rkcsi: fixed interrupt references in device tree and bindings
>    (Rob's bot)
> - added missing call to rkcif_mipi_stop_streaming from rkcif_mipi_isr
>    (Mehdi)
> - renamed remaining instances "cif_" -> "rkcif_" in functions
> - Link to v9: https://lore.kernel.org/r/20240220-rk3568-vicap-v9-0-ace1e5cc4a82@collabora.com
> 
> Changes in v9:
> - added compatible for RK3588 MIPI CSI-2 receiver, thus dropped
>    Krzysztof's R-b
> - added interrupts to rkcsi DT binding and RK356x DT
> - added variant specific callback to rkcif-capture-mipi that puts
>    together the CTRL0 register content (which varies between RK3568
>    and RK3588)
> - fixed v4l2_fill_pixfmt_mp() return value handling (Mehdi)
> - Link to v8: https://lore.kernel.org/r/20240220-rk3568-vicap-v8-0-9d9cbc4b524d@collabora.com
> 
> Changes in v8:
> - rebased onto v6.16-rc1
> - fixed RKCIF_MIPI_MAX value in rkcif-common.h
> - fixed rkcsi Kconfig (kernel test robot)
> - sorted rkcsi DT bindings document properly, completed example
>    (Krzysztof)
> - squashed the defconfig patches (Krzysztof), dropped Bryan's R-b
> - Link to v7: https://lore.kernel.org/r/20240220-rk3568-vicap-v7-0-7581fd96a33a@collabora.com
> 
> Changes in v7:
> - moved MIPI CSI-2 receiver driver into separate directory (Laurent)
> - rkcsi: fixed return values (Bryan)
> - rkcsi: fixed v4l2_get_link_freq to use pad instead of control
>    handler (Sakari)
> - rkcsi: added data-lanes property (Mehdi)
> - rkcif: fixed formatting (Bryan)
> - fixed "int" -> "unsigned int" in all for loops (Sakari)
> - rkcif-stream: fixed minimum number of required buffers (Mehdi)
> - rkcif-stream: used guards for the spinlock (Markus and Mehdi)
> - rkcif-stream: made driver less noisy with dev_dbg (Mehdi)
> - rkcif-stream: fixed issues detected by v4l2-compliance (Mehdi)
> - rkcif-dvp-capture: fixed return value propagation in _register()
>    (Mehdi)
> - removed stray "phy-names" from required properties (Rob's bot)
> - Link to v6: https://lore.kernel.org/r/20240220-rk3568-vicap-v6-0-d2f5fbee1551@collabora.com
> 
> Changes in v6:
> - rebased onto v6.15-rc1
> - renamed "MIPI CSI HOST" -> "MIPI CSI RECEIVER" (Laurent)
> - s/@wolfvision.net/@collabora.com where appropriate
> - renamed DVP delay property and moved it to the endpoint (Sakari)
> - implemented DT review comments (Krzysztof and Sakari)
> - implemented driver review comments (Sakari)
> - fixed issues raised by media-ci (yet again)
> - added documentation including a RK3568 topology (new patch 1)
>    (Sakari)
> - added patch that enables rkcif in the defconfig (new patch 9)
> - Link to v5: https://lore.kernel.org/r/20250306-v6-8-topic-rk3568-vicap-v5-0-f02152534f3c@wolfvision.net
> 
> Changes in v5:
> - fixed issues raised by media-ci
> - fixed dt bindings (comments by Rob and Sakari)
> - fixed probe on systems with no DVP in DT (comment by Alexander)
> - fixed error path in register offset calculation
> - split off MIPI CSI host driver into separate module (comment
>    by Mehdi)
> - added MODULE_DEVICE_TABLE() for both drivers (comment by Mehdi)
> - Link to v4: https://lore.kernel.org/r/20250219-v6-8-topic-rk3568-vicap-v4-0-e906600ae3b0@wolfvision.net
> 
> Changes in v4:
> - added support for the MIPI CSI-2 receiver (new patches 4, 6, 7, 10)
> - fixed asserts on stream stop
> - fixed register address lookup
> - fixed link validiation callback
> - fixed issues raised by Rob's bot, kernel test robot, and media-ci
> - Link to v3: https://lore.kernel.org/r/20250206-v6-8-topic-rk3568-vicap-v3-0-69d1f19e5c40@wolfvision.net
> 
> Changes in v3:
> - renamed the driver "cif" -> "rkcif"
> - rebased onto v6.14-rc1
> - abstracted the generic INTERFACE+CROP part
> - addressed comments by Rob and Sakari
> - added V4L2 MPLANE formats to DVP
> - added patch that enables the RK3568 VICAP DVP on PF5 IO Expander
> - fixed formatting issues raised by media-ci bot
> - Link to v2: https://lore.kernel.org/r/20241217-v6-8-topic-rk3568-vicap-v2-0-b1d488fcc0d3@wolfvision.net
> 
> Changes in v2:
> - merged with Mehdi's v13
> - refactored the complete driver towards a media controller centric driver
> - abstracted the generic ping-pong stream (can be used for DVP as well as for CSI-2)
> - switched to MPLANE API
> - added support for notifications
> - Link to v1: https://lore.kernel.org/r/20240220-v6-8-topic-rk3568-vicap-v1-0-2680a1fa640b@wolfvision.net
> 
> ---
> Mehdi Djait (2):
>        media: dt-bindings: add rockchip px30 vip
>        arm64: dts: rockchip: add the vip node to px30
> 
> Michael Riesch (16):
>        Documentation: admin-guide: media: add rockchip camera interface
>        media: dt-bindings: video-interfaces: add defines for sampling modes
>        media: dt-bindings: add rockchip rk3568 vicap
>        media: dt-bindings: add rockchip rk3568 mipi csi-2 receiver
>        media: rockchip: add driver for the rockchip mipi csi-2 receiver
>        media: rockchip: add driver for the rockchip camera interface
>        media: rockchip: rkcif: add abstraction for interface and crop blocks
>        media: rockchip: rkcif: add abstraction for dma blocks
>        media: rockchip: rkcif: add support for px30 vip dvp capture
>        media: rockchip: rkcif: add support for rk3568 vicap dvp capture
>        media: rockchip: rkcif: add support for rk3568 vicap mipi capture
>        arm64: defconfig: enable rockchip camera interface and mipi csi-2 receiver
>        arm64: dts: rockchip: add vicap node to rk356x
>        arm64: dts: rockchip: add mipi csi-2 receiver node to rk356x
>        arm64: dts: rockchip: enable vicap dvp on wolfvision pf5 io expander
>        arm64: dts: rockchip: add overlay for radxa camera 8m
> 
>   .../admin-guide/media/rkcif-rk3568-vicap.dot       |  21 +
>   Documentation/admin-guide/media/rkcif.rst          |  83 ++
>   Documentation/admin-guide/media/v4l-drivers.rst    |   1 +
>   .../bindings/media/rockchip,px30-vip.yaml          | 124 +++
>   .../bindings/media/rockchip,rk3568-mipi-csi.yaml   | 146 ++++
>   .../bindings/media/rockchip,rk3568-vicap.yaml      | 172 ++++
>   MAINTAINERS                                        |  17 +
>   arch/arm64/boot/dts/rockchip/Makefile              |   5 +
>   arch/arm64/boot/dts/rockchip/px30.dtsi             |  12 +
>   .../dts/rockchip/rk3568-rock-3a-radxa-cam8m.dtso   |  90 +++
>   .../rk3568-wolfvision-pf5-io-expander.dtso         |  20 +
>   arch/arm64/boot/dts/rockchip/rk356x-base.dtsi      |  78 ++
>   arch/arm64/configs/defconfig                       |   2 +
>   drivers/media/platform/rockchip/Kconfig            |   2 +
>   drivers/media/platform/rockchip/Makefile           |   2 +
>   drivers/media/platform/rockchip/rkcif/Kconfig      |  18 +
>   drivers/media/platform/rockchip/rkcif/Makefile     |   8 +
>   .../platform/rockchip/rkcif/rkcif-capture-dvp.c    | 865 +++++++++++++++++++++
>   .../platform/rockchip/rkcif/rkcif-capture-dvp.h    |  25 +
>   .../platform/rockchip/rkcif/rkcif-capture-mipi.c   | 777 ++++++++++++++++++
>   .../platform/rockchip/rkcif/rkcif-capture-mipi.h   |  23 +
>   .../media/platform/rockchip/rkcif/rkcif-common.h   | 250 ++++++
>   drivers/media/platform/rockchip/rkcif/rkcif-dev.c  | 303 ++++++++
>   .../platform/rockchip/rkcif/rkcif-interface.c      | 426 ++++++++++
>   .../platform/rockchip/rkcif/rkcif-interface.h      |  31 +
>   drivers/media/platform/rockchip/rkcif/rkcif-regs.h | 153 ++++
>   .../media/platform/rockchip/rkcif/rkcif-stream.c   | 638 +++++++++++++++
>   .../media/platform/rockchip/rkcif/rkcif-stream.h   |  32 +
>   drivers/media/platform/rockchip/rkcsi/Kconfig      |  16 +
>   drivers/media/platform/rockchip/rkcsi/Makefile     |   3 +
>   drivers/media/platform/rockchip/rkcsi/rkcsi.c      | 742 ++++++++++++++++++
>   include/dt-bindings/media/video-interfaces.h       |   4 +
>   32 files changed, 5089 insertions(+)
> ---
> base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
> change-id: 20240220-rk3568-vicap-b9b3f9925f44
> 
> Best regards,
> --
> Michael Riesch <michael.riesch@collabora.com>
> 
> 
> 

This series feels like it needs to be merged....

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

Re: [PATCH v12 06/18] media: rockchip: add driver for the rockchip mipi csi-2 receiver

[Mehdi Djait]

Hi Michael,

Thank you for the patches!

On Tue, Oct 14, 2025 at 03:01:52PM +0200, Michael Riesch via B4 Relay wrote:
> From: Michael Riesch <michael.riesch@collabora.com>
> 
> The Rockchip RK3568 MIPI CSI-2 Receiver is a CSI-2 bridge with one
> input port and one output port. It receives the data with the help
> of an external MIPI PHY (C-PHY or D-PHY) and passes it to the
> Rockchip RK3568 Video Capture (VICAP) block.
> 
> Add a V4L2 subdevice driver for this unit.
> 

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>

> Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

--
Kind Regards
Mehdi Djait

Re: [PATCH v12 07/18] media: rockchip: add driver for the rockchip camera interface

[Mehdi Djait]

Hi Michael,

Thank you for the patches!

On Tue, Oct 14, 2025 at 03:01:53PM +0200, Michael Riesch via B4 Relay wrote:
> From: Michael Riesch <michael.riesch@collabora.com>
> 
> Add the skeleton for a media controller centric V4L2 driver for the
> Rockchip Camera Interface (CIF).
> The skeleton features support for the PX30 Video Input Processor (VIP)
> and the RK3568 Video Capture (VICAP) unit.
> 

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>

> Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

--
Kind Regards
Mehdi Djait

Re: [PATCH v12 10/18] media: rockchip: rkcif: add support for px30 vip dvp capture

[Mehdi Djait]

Hi Michael,

Thank you for the patches!

On Tue, Oct 14, 2025 at 03:01:56PM +0200, Michael Riesch via B4 Relay wrote:
> From: Michael Riesch <michael.riesch@collabora.com>
> 
> The PX30 Video Input Processor (VIP) unit features a Digital Video
> Port (DVP). Add support for the DVP in general and for the PX30
> VIP DVP in particular.
> 

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>

> Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

--
Kind Regards
Mehdi Djait

Re: [PATCH v12 12/18] media: rockchip: rkcif: add support for rk3568 vicap mipi capture

[Mehdi Djait]

Hi Michael,

Thank you for the patches!

On Tue, Oct 14, 2025 at 03:01:58PM +0200, Michael Riesch via B4 Relay wrote:
> From: Michael Riesch <michael.riesch@collabora.com>
> 
> The RK3568 Video Capture (VICAP) unit features a MIPI CSI-2 capture
> interface. Add support for the MIPI capture interface in general
> and for the RK3568 VICAP MIPI capture in particular.
> 
> Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>

--
Kind Regards
Mehdi Djait

Re: [PATCH v12 09/18] media: rockchip: rkcif: add abstraction for dma blocks

[Mehdi Djait]

Hi Michael,

Thank you for the patches!

On Tue, Oct 14, 2025 at 03:01:55PM +0200, Michael Riesch via B4 Relay wrote:
> From: Michael Riesch <michael.riesch@collabora.com>
> 
> Add an abstraction for the DMA parts and the ping-pong scheme (a
> double-buffering mechanism) of the different CIF variants. Each
> stream is represented as V4L2 device whose corresponding media
> entity has one sink pad. This sink pad is connected to an instance
> of the INTERFACE/CROP abstraction.
> 
> Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>

--
Kind Regards
Mehdi Djait

Re: [PATCH v12 08/18] media: rockchip: rkcif: add abstraction for interface and crop blocks

[Mehdi Djait]

Hi Michael,

Thank you for the patches!

On Tue, Oct 14, 2025 at 03:01:54PM +0200, Michael Riesch via B4 Relay wrote:
> From: Michael Riesch <michael.riesch@collabora.com>
> 
> Add an abstraction for the INTERFACE and CROP parts of the different
> Rockchip Camera Interface (CIF) variants. These parts are represented
> as V4L2 subdevice with one sink pad and one source pad. The sink pad
> is connected to a subdevice: either the subdevice provided by the
> driver of the companion chip connected to the DVP, or the subdevice
> provided by the MIPI CSI-2 receiver. The source pad is connected to
> V4l2 device(s) provided by one or many instance(s) of the DMA
> abstraction.
> 
> Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>

--
Kind Regards
Mehdi Djait
 

Re: [PATCH v12 11/18] media: rockchip: rkcif: add support for rk3568 vicap dvp capture

[Mehdi Djait]

Hi Michael,

Thank you for the patches!

On Tue, Oct 14, 2025 at 03:01:57PM +0200, Michael Riesch via B4 Relay wrote:
> From: Michael Riesch <michael.riesch@collabora.com>
> 
> The RK3568 Video Capture (VICAP) unit features a Digital Video Port
> (DVP). Add support for it.
> 
> Tested-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>

--
Kind Regards
Mehdi Djait
 

Re: [PATCH v12 13/18] arm64: defconfig: enable rockchip camera interface and mipi csi-2 receiver

[Mehdi Djait]

Hi Michael,

Thank you for the patches!

On Tue, Oct 14, 2025 at 03:01:59PM +0200, Michael Riesch via B4 Relay wrote:
> From: Michael Riesch <michael.riesch@collabora.com>
> 
> The Rockchip Camera Interface (CIF) and the Rockchip MIPI CSI-2 Receiver
> are featured in many Rockchip SoCs in different variations.
> Enable the drivers for them in the default configuration.
> 
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> Signed-off-by: Michael Riesch <michael.riesch@collabora.com>

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>

--
Kind Regards
Mehdi Djait

Re: [PATCH v12 00/18] media: rockchip: add a driver for the rockchip camera interface

[Mehdi Djait]

Hi Michael,

On Tue, Oct 14, 2025 at 03:01:46PM +0200, Michael Riesch via B4 Relay wrote:

[..]

> Changes in v12:
> - added Radxa Camera 8M device tree overlay
> - rebased onto v6.18-rc1
> - fixed IOMMU pagefaults caused by wrong VLW (Mehdi)

Yes, I confirm it is fixed :)

Thank you for working on this!

> - fixed indentation of register defines in -regs.h (Sakari)
> - renamed CSI-2 receiver interrupts (Rob)
> - added MEDIA_BUS_TYPE_* as comments in DT bindings (Bryan)
> - added newline in rkcif-dev.c (Bryan)
> - Link to v11: https://lore.kernel.org/r/20240220-rk3568-vicap-v11-0-af0eada54e5d@collabora.com

--
Kind Regards
Mehdi Djait