[PATCH v4 00/24] tegra-video: add CSI support for Tegra20 and Tegra30

Svyatoslav Ryhel
2025-10-08T07:31:15Z

Add support for MIPI CSI device found in Tegra20 and Tegra30 SoC along
with a set of changes required for that.

---
Changes in v2:
- vi_sensor gated through csus
- TEGRA30_CLK_CLK_MAX moved to clk-tegra30
- adjusted commit titles and messages
- clk_register_clkdev dropped from pad clock registration
- removed tegra30-vi/vip and used tegra20 fallback
- added separate csi schema for tegra20-csi and tegra30-csi
- fixet number of VI channels
- adjusted tegra_vi_out naming
- fixed yuv_input_format to main_input_format
- MIPI calibration refsctored for Tegra114+ and added support for
pre-Tegra114 to use CSI as a MIPI calibration device
- switched ENOMEM to EBUSY
- added check into tegra_channel_get_remote_csi_subdev
- moved avdd-dsi-csi-supply into CSI
- next_fs_sp_idx > next_fs_sp_value
- removed host1x_syncpt_incr from framecounted syncpoint
- csi subdev request moved before frame cycle

Changes in v3:
- tegra20 and tegra30 csi schema merged
- removed unneeded properties and requirements from schema
- improved vendor specific properties description
- added tegra20 csus parent mux
- improved commit descriptions
- redesigned MIPI-calibration to expose less SoC related data into header
- commit "staging: media: tegra-video: csi: add support for SoCs with integrated
MIPI calibration" dropped as unneeded
- improved tegra_channel_get_remote_device_subdev logic
- avdd-dsi-csi-supply moved from vi to csi for p2597 and p3450-0000
- software syncpoint counters switched to direct reading
- adjusted planar formats offset calculation

Changes in v4:
- removed ifdefs from tegra_mipi_driver
- document Tegra132 MIPI calibration device
- switched to use BIT macro in tegra114-mipi
- pinctrl changes moved to a separate patch
- ERESTARTSYS workaround preserved for now
- tegra_mipi_add_provider replaced with devm_tegra_mipi_add_provider
- reworked bytesperline and sizeimage calculaion
---

Svyatoslav Ryhel (24):
pinctrl: tegra20: register csus_mux clock
clk: tegra: set CSUS as vi_sensor's gate for Tegra20, Tegra30 and
Tegra114
dt-bindings: clock: tegra30: Add IDs for CSI pad clocks
clk: tegra30: add CSI pad clock gates
dt-bindings: display: tegra: document Tegra30 VI and VIP
staging: media: tegra-video: expand VI and VIP support to Tegra30
staging: media: tegra-video: vi: adjust get_selection op check
staging: media: tegra-video: vi: add flip controls only if no source
controls are provided
staging: media: tegra-video: csi: move CSI helpers to header
gpu: host1x: convert MIPI to use operation function pointers
dt-bindings: display: tegra: document Tegra132 MIPI calibration device
staging: media: tegra-video: vi: improve logic of source requesting
staging: media: tegra-video: csi: move avdd-dsi-csi-supply from VI to
CSI
arm64: tegra: move avdd-dsi-csi-supply into CSI node
staging: media: tegra-video: tegra20: set correct maximum width and
height
staging: media: tegra-video: tegra20: add support for second output of
VI
staging: media: tegra-video: tegra20: adjust format align calculations
staging: media: tegra-video: tegra20: set VI HW revision
staging: media: tegra-video: tegra20: increase maximum VI clock
frequency
staging: media: tegra-video: tegra20: expand format support with
RAW8/10 and YUV422/YUV420p 1X16
staging: media: tegra-video: tegra20: adjust luma buffer stride
dt-bindings: display: tegra: document Tegra20 and Tegra30 CSI
ARM: tegra: add CSI nodes for Tegra20 and Tegra30
staging: media: tegra-video: add CSI support for Tegra20 and Tegra30

.../display/tegra/nvidia,tegra114-mipi.yaml | 1 +
.../display/tegra/nvidia,tegra20-csi.yaml | 135 +++
.../display/tegra/nvidia,tegra20-vi.yaml | 19 +-
.../display/tegra/nvidia,tegra20-vip.yaml | 9 +-
arch/arm/boot/dts/nvidia/tegra20.dtsi | 19 +-
arch/arm/boot/dts/nvidia/tegra30.dtsi | 24 +-
.../arm64/boot/dts/nvidia/tegra210-p2597.dtsi | 4 +-
.../boot/dts/nvidia/tegra210-p3450-0000.dts | 4 +-
drivers/clk/tegra/clk-tegra114.c | 7 +-
drivers/clk/tegra/clk-tegra20.c | 20 +-
drivers/clk/tegra/clk-tegra30.c | 21 +-
drivers/gpu/drm/tegra/dsi.c | 1 +
drivers/gpu/host1x/Makefile | 1 +
drivers/gpu/host1x/mipi.c | 525 ++----------
drivers/gpu/host1x/tegra114-mipi.c | 483 +++++++++++
drivers/pinctrl/tegra/pinctrl-tegra20.c | 11 +-
drivers/staging/media/tegra-video/Makefile | 1 +
drivers/staging/media/tegra-video/csi.c | 70 +-
drivers/staging/media/tegra-video/csi.h | 16 +
drivers/staging/media/tegra-video/tegra20.c | 808 +++++++++++++++---
drivers/staging/media/tegra-video/vi.c | 56 +-
drivers/staging/media/tegra-video/vi.h | 6 +-
drivers/staging/media/tegra-video/video.c | 8 +-
drivers/staging/media/tegra-video/vip.c | 4 +-
include/dt-bindings/clock/tegra30-car.h | 3 +-
include/linux/host1x.h | 10 -
include/linux/tegra-mipi-cal.h | 57 ++
27 files changed, 1651 insertions(+), 672 deletions(-)
create mode 100644 Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-csi.yaml
create mode 100644 drivers/gpu/host1x/tegra114-mipi.c
create mode 100644 include/linux/tegra-mipi-cal.h

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2.48.1