* [PATCH v2 0/2] media: i2c: Add os02g10 camera sensor driver
@ 2026-04-14 8:49 Elgin Perumbilly
2026-04-14 8:49 ` [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor Elgin Perumbilly
2026-04-14 8:49 ` [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver Elgin Perumbilly
0 siblings, 2 replies; 15+ messages in thread
From: Elgin Perumbilly @ 2026-04-14 8:49 UTC (permalink / raw)
To: sakari.ailus, tarang.raval
Cc: Elgin Perumbilly, Mauro Carvalho Chehab, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Hans Verkuil, Hans de Goede,
Vladimir Zapolskiy, Mehdi Djait, Laurent Pinchart,
Sylvain Petinot, Benjamin Mugnier, Himanshu Bhavani,
Jingjing Xiong, Svyatoslav Ryhel, Hardevsinh Palaniya,
linux-media, devicetree, linux-kernel
The following features are supported:
- Manual exposure an gain control support.
- vblank/hblank control support.
- vflip/hflip control support
- Test pattern control support.
- Supported resolution: 1920 x 1080 @ 30fps (SBGGR10).
The driver is tested on mainline branch v7.0-rc2 on IMX8MP Debix Model a.
debix@imx8mp-debix:~$ v4l2-compliance -d /dev/v4l-subdev3
v4l2-compliance 1.31.0-5387, 64 bits, 64-bit time_t
v4l2-compliance SHA: 5508bc4301ac 2025-08-25 08:14:22
Compliance test for device /dev/v4l-subdev3:
Driver Info:
Driver version : 7.0.0
Capabilities : 0x00000000
Client Capabilities: 0x0000000000000002
interval-uses-which
Required ioctls:
test VIDIOC_SUDBEV_QUERYCAP: OK
test invalid ioctls: OK
Allow for multiple opens:
test second /dev/v4l-subdev3 open: OK
test VIDIOC_SUBDEV_QUERYCAP: OK
test for unlimited opens: OK
Debug ioctls:
test VIDIOC_LOG_STATUS: OK (Not Supported)
Input ioctls:
test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
test VIDIOC_ENUMAUDIO: OK (Not Supported)
test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
test VIDIOC_G/S_AUDIO: OK (Not Supported)
Inputs: 0 Audio Inputs: 0 Tuners: 0
Output ioctls:
test VIDIOC_G/S_MODULATOR: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_ENUMAUDOUT: OK (Not Supported)
test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
test VIDIOC_G/S_AUDOUT: OK (Not Supported)
Outputs: 0 Audio Outputs: 0 Modulators: 0
Input/Output configuration ioctls:
test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
test VIDIOC_G/S_EDID: OK (Not Supported)
Control ioctls:
test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
test VIDIOC_QUERYCTRL: OK
test VIDIOC_G/S_CTRL: OK
test VIDIOC_G/S/TRY_EXT_CTRLS: OK
test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
Standard Controls: 13 Private Controls: 0
Format ioctls:
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK (Not Supported)
test VIDIOC_G/S_PARM: OK (Not Supported)
test VIDIOC_G_FBUF: OK (Not Supported)
test VIDIOC_G_FMT: OK (Not Supported)
test VIDIOC_TRY_FMT: OK (Not Supported)
test VIDIOC_S_FMT: OK (Not Supported)
test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
test Cropping: OK (Not Supported)
test Composing: OK (Not Supported)
test Scaling: OK (Not Supported)
Codec ioctls:
test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
test VIDIOC_G_ENC_INDEX: OK (Not Supported)
test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
Buffer ioctls:
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK (Not Supported)
test CREATE_BUFS maximum buffers: OK
test VIDIOC_REMOVE_BUFS: OK
test VIDIOC_EXPBUF: OK (Not Supported)
test Requests: OK (Not Supported)
test blocking wait: OK (Not Supported)
Total for device /dev/v4l-subdev3: 46, Succeeded: 46, Failed: 0, Warnings: 0
V1 -> V2
- Mode-specific register writes handled dynamically.
- Moved page 2 registers into a dedicated page 2 block.
- Used pm_runtime_get_if_active() in set_ctrls.
- Resolved negative hblank issue.
- Improved error messages in disable_stream.
- Updated V4L2_SEL_TGT_CROP and V4L2_SEL_TGT_CROP_BOUNDS.
- Added my name to the author list.
Elgin Perumbilly (2):
dt-bindings: media: i2c: Add os02g10 sensor
media: i2c: add os02g10 image sensor driver
.../bindings/media/i2c/ovti,os02g10.yaml | 96 ++
MAINTAINERS | 8 +
drivers/media/i2c/Kconfig | 10 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++
5 files changed, 1154 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,os02g10.yaml
create mode 100644 drivers/media/i2c/os02g10.c
--
2.34.1
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor
2026-04-14 8:49 [PATCH v2 0/2] media: i2c: Add os02g10 camera sensor driver Elgin Perumbilly
@ 2026-04-14 8:49 ` Elgin Perumbilly
2026-04-15 7:54 ` Krzysztof Kozlowski
2026-04-15 9:03 ` Krzysztof Kozlowski
2026-04-14 8:49 ` [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver Elgin Perumbilly
1 sibling, 2 replies; 15+ messages in thread
From: Elgin Perumbilly @ 2026-04-14 8:49 UTC (permalink / raw)
To: sakari.ailus, tarang.raval
Cc: Elgin Perumbilly, Mauro Carvalho Chehab, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Hans Verkuil, Hans de Goede,
Vladimir Zapolskiy, Mehdi Djait, Laurent Pinchart,
Benjamin Mugnier, Sylvain Petinot, Hardevsinh Palaniya,
Heimir Thor Sverrisson, Jingjing Xiong, Himanshu Bhavani,
Svyatoslav Ryhel, linux-media, devicetree, linux-kernel
Add bindings for Omnivision OS02G10 sensor.
Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
---
.../bindings/media/i2c/ovti,os02g10.yaml | 96 +++++++++++++++++++
MAINTAINERS | 7 ++
2 files changed, 103 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,os02g10.yaml
diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,os02g10.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,os02g10.yaml
new file mode 100644
index 000000000000..79e7e644d696
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ovti,os02g10.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ovti,os02g10.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OmniVision OS02G10 Image Sensor
+
+maintainers:
+ - Tarang Raval <tarang.raval@siliconsignals.io>
+
+description:
+ The OmniVision OS02G10 is a 2MP (1920x1080) color CMOS image sensor controlled
+ through an I2C-compatible SCCB bus. it outputs RAW10 format.
+
+properties:
+ compatible:
+ const: ovti,os02g10
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: XCLK clock
+
+ avdd-supply:
+ description: Analog Domain Power Supply (2.8v)
+
+ dovdd-supply:
+ description: I/O Domain Power Supply (1.8v)
+
+ dvdd-supply:
+ description: Digital core Power Supply (1.5v)
+
+ reset-gpios:
+ maxItems: 1
+ description: Reset Pin GPIO Control (active low)
+
+ port:
+ description: MIPI CSI-2 transmitter port
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ additionalProperties: false
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ items:
+ - const: 1
+ - const: 2
+ required:
+ - data-lanes
+ - link-frequencies
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - avdd-supply
+ - dovdd-supply
+ - dvdd-supply
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ camera-sensor@3c {
+ compatible = "ovti,os02g10";
+ reg = <0x3c>;
+ clocks = <&os02g10_clk>;
+ reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+
+ avdd-supply = <&os02g10_avdd_2v8>;
+ dvdd-supply = <&os02g10_dvdd_1v2>;
+ dovdd-supply = <&os2gb10_dovdd_1v8>;
+
+ port {
+ cam_out: endpoint {
+ remote-endpoint = <&mipi_in_cam>;
+ data-lanes = <1 2>;
+ link-frequencies = /bits/ 64 <720000000>;
+ };
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index c3fe46d7c4bc..13409c71a765 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19457,6 +19457,13 @@ T: git git://linuxtv.org/media_tree.git
F: Documentation/devicetree/bindings/media/i2c/ovti,og0ve1b.yaml
F: drivers/media/i2c/og0ve1b.c
+OMNIVISION OS02G10 SENSOR DRIVER
+M: Tarang Raval <tarang.raval@siliconsignals.io>
+M: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/media/i2c/ovti,os02g10.yaml
+
OMNIVISION OS05B10 SENSOR DRIVER
M: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
M: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
--
2.34.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 8:49 [PATCH v2 0/2] media: i2c: Add os02g10 camera sensor driver Elgin Perumbilly
2026-04-14 8:49 ` [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor Elgin Perumbilly
@ 2026-04-14 8:49 ` Elgin Perumbilly
2026-04-14 9:27 ` Laurent Pinchart
2026-04-14 9:57 ` Sakari Ailus
1 sibling, 2 replies; 15+ messages in thread
From: Elgin Perumbilly @ 2026-04-14 8:49 UTC (permalink / raw)
To: sakari.ailus, tarang.raval
Cc: Elgin Perumbilly, Mauro Carvalho Chehab, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Hans Verkuil, Hans de Goede,
Vladimir Zapolskiy, Mehdi Djait, Laurent Pinchart,
Benjamin Mugnier, Sylvain Petinot, Hardevsinh Palaniya,
Jingjing Xiong, linux-media, devicetree, linux-kernel
Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
The Omnivision os02g10 is a CMOS image sensor with an active array size of
1920 x 1080.
The following features are supported:
- Manual exposure an gain control support
- vblank/hblank control support
- vflip/hflip control support
- Test pattern control support
- Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
---
MAINTAINERS | 1 +
drivers/media/i2c/Kconfig | 10 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
4 files changed, 1051 insertions(+)
create mode 100644 drivers/media/i2c/os02g10.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 13409c71a765..28827e77ea31 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19463,6 +19463,7 @@ M: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
L: linux-media@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/media/i2c/ovti,os02g10.yaml
+F: drivers/media/i2c/os02g10.c
OMNIVISION OS05B10 SENSOR DRIVER
M: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 5eb1e0e0a87a..dd6e9562acf6 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -372,6 +372,16 @@ config VIDEO_OG0VE1B
To compile this driver as a module, choose M here: the
module will be called og0ve1b.
+config VIDEO_OS02G10
+ tristate "OmniVision OS02G10 sensor support"
+ select V4L2_CCI_I2C
+ help
+ This is a Video4Linux2 sensor driver for Omnivision
+ OS02G10 camera sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called os02g10.
+
config VIDEO_OS05B10
tristate "OmniVision OS05B10 sensor support"
select V4L2_CCI_I2C
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index a3a6396df3c4..a7554d2eb140 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -84,6 +84,7 @@ obj-$(CONFIG_VIDEO_MT9V032) += mt9v032.o
obj-$(CONFIG_VIDEO_MT9V111) += mt9v111.o
obj-$(CONFIG_VIDEO_OG01A1B) += og01a1b.o
obj-$(CONFIG_VIDEO_OG0VE1B) += og0ve1b.o
+obj-$(CONFIG_VIDEO_OS02G10) += os02g10.o
obj-$(CONFIG_VIDEO_OS05B10) += os05b10.o
obj-$(CONFIG_VIDEO_OV01A10) += ov01a10.o
obj-$(CONFIG_VIDEO_OV02A10) += ov02a10.o
diff --git a/drivers/media/i2c/os02g10.c b/drivers/media/i2c/os02g10.c
new file mode 100644
index 000000000000..b8df79162f88
--- /dev/null
+++ b/drivers/media/i2c/os02g10.c
@@ -0,0 +1,1039 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * V4L2 Support for the OS02G10
+ *
+ * Copyright (C) 2026 Silicon Signals Pvt. Ltd.
+ *
+ */
+
+#include <linux/array_size.h>
+#include <linux/bitops.h>
+#include <linux/cleanup.h>
+#include <linux/clk.h>
+#include <linux/container_of.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pm_runtime.h>
+#include <linux/property.h>
+#include <linux/regulator/consumer.h>
+#include <linux/units.h>
+#include <linux/types.h>
+#include <linux/time.h>
+#include <linux/regmap.h>
+
+#include <media/v4l2-cci.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-mediabus.h>
+
+#define OS02G10_XCLK_FREQ (24 * HZ_PER_MHZ)
+
+/* Add page number in CCI private bits [31:28] of the register address */
+#define OS02G10_PAGE_REG8(p, x) (((p) << CCI_REG_PRIVATE_SHIFT) | CCI_REG8(x))
+#define OS02G10_PAGE_REG16(p, x) (((p) << CCI_REG_PRIVATE_SHIFT) | CCI_REG16(x))
+#define OS02G10_PAGE_REG24(p, x) (((p) << CCI_REG_PRIVATE_SHIFT) | CCI_REG24(x))
+
+#define OS02G10_REG_PAGE_SELECT CCI_REG8(0xfd)
+
+/* Page 0 */
+#define OS02G10_REG_CHIPID OS02G10_PAGE_REG24(0x00, 0x02)
+#define OS02G10_CHIPID 0x560247
+
+#define OS02G10_REG_PLL_DIV_CTRL OS02G10_PAGE_REG8(0x00, 0x30)
+#define OS02G10_REG_PLL_DCTL_BIAS_CTRL OS02G10_PAGE_REG8(0x00, 0x35)
+#define OS02G10_REG_GATE_EN_CTRL OS02G10_PAGE_REG8(0x00, 0x38)
+#define OS02G10_REG_DPLL_NC OS02G10_PAGE_REG8(0x00, 0x41)
+#define OS02G10_REG_MP_PHASE_CTRL OS02G10_PAGE_REG8(0x00, 0x44)
+
+/* Page 1 */
+#define OS02G10_REG_STREAM_CTRL OS02G10_PAGE_REG8(0x01, 0xb1)
+#define OS02G10_STREAM_CTRL_ON 0x03
+#define OS02G10_STREAM_CTRL_OFF 0x00
+
+#define OS02G10_REG_FRAME_SYNC OS02G10_PAGE_REG8(0x01, 0x01)
+
+#define OS02G10_REG_FRAME_LENGTH OS02G10_PAGE_REG16(0x01, 0x0e)
+#define OS02G10_FRAME_LENGTH_MAX 0xffff
+#define OS02G10_REG_HBLANK OS02G10_PAGE_REG16(0x01, 0x09)
+
+#define OS02G10_REG_FRAME_TEST_CTRL OS02G10_PAGE_REG8(0x01, 0x0d)
+#define OS02G10_FRAME_EXP_SEPERATE_EN BIT(4)
+#define OS02G10_TEST_PATTERN_ENABLE BIT(0)
+
+#define OS02G10_REG_ULP_PWD_DUMMY_CTRL OS02G10_PAGE_REG8(0x01, 0x3c)
+#define OS02G10_REG_DC_LEVEL_LIMIT_EN OS02G10_PAGE_REG8(0x01, 0x46)
+#define OS02G10_REG_DC_LEVEL_LIMIT_L OS02G10_PAGE_REG8(0x01, 0x47)
+#define OS02G10_REG_BLC_DATA_LIMIT_L OS02G10_PAGE_REG8(0x01, 0x48)
+#define OS02G10_REG_DC_BLC_LIMIT_H OS02G10_PAGE_REG8(0x01, 0x49)
+
+#define OS02G10_REG_HS_LP_CTRL OS02G10_PAGE_REG8(0x01, 0x92)
+#define OS02G10_REG_HS_LEVEL OS02G10_PAGE_REG8(0x01, 0x9d)
+#define OS02G10_REG_HS_DRV OS02G10_PAGE_REG8(0x01, 0x9e)
+
+#define OS02G10_REG_GB_SUBOFFSET OS02G10_PAGE_REG8(0x01, 0xf0)
+#define OS02G10_REG_BLUE_SUBOFFSET OS02G10_PAGE_REG8(0x01, 0xf1)
+#define OS02G10_REG_RED_SUBOFFSET OS02G10_PAGE_REG8(0x01, 0xf2)
+#define OS02G10_REG_GR_SUBOFFSET OS02G10_PAGE_REG8(0x01, 0xf3)
+
+#define OS02G10_REG_ABL_TRIGGER OS02G10_PAGE_REG8(0x01, 0xfa)
+#define OS02G10_REG_ABL OS02G10_PAGE_REG8(0x01, 0xfb)
+
+#define OS02G10_REG_H_SIZE_MIPI OS02G10_PAGE_REG16(0x01, 0x8e)
+#define OS02G10_REG_V_SIZE_MIPI OS02G10_PAGE_REG16(0x01, 0x90)
+#define OS02G10_REG_MIPI_TX_SPEED_CTRL OS02G10_PAGE_REG8(0x01, 0xa1)
+
+#define OS02G10_REG_LONG_EXPOSURE OS02G10_PAGE_REG16(0x01, 0x03)
+#define OS02G10_EXPOSURE_MIN 4
+#define OS02G10_EXPOSURE_STEP 1
+#define OS02G10_EXPOSURE_MARGIN 9
+
+#define OS02G10_REG_ANALOG_GAIN OS02G10_PAGE_REG8(0x01, 0x24)
+#define OS02G10_ANALOG_GAIN_MIN 0x10
+#define OS02G10_ANALOG_GAIN_MAX 0xf8
+#define OS02G10_ANALOG_GAIN_STEP 1
+#define OS02G10_ANALOG_GAIN_DEFAULT 0x10
+
+#define OS02G10_REG_DIGITAL_GAIN_H OS02G10_PAGE_REG8(0x01, 0x37)
+#define OS02G10_REG_DIGITAL_GAIN_L OS02G10_PAGE_REG8(0x01, 0x39)
+#define OS02G10_DIGITAL_GAIN_MIN 0x40
+#define OS02G10_DIGITAL_GAIN_MAX 0x800
+#define OS02G10_DIGITAL_GAIN_STEP 64
+#define OS02G10_DIGITAL_GAIN_DEFAULT 0x40
+
+#define OS02G10_REG_FLIP_MIRROR OS02G10_PAGE_REG8(0x01, 0x3f)
+#define OS02G10_FLIP BIT(1)
+#define OS02G10_MIRROR BIT(0)
+
+/* Page 2 */
+#define OS02G10_REG_V_START OS02G10_PAGE_REG16(0x02, 0xa0)
+#define OS02G10_REG_V_SIZE OS02G10_PAGE_REG16(0x02, 0xa2)
+#define OS02G10_REG_H_START OS02G10_PAGE_REG16(0x02, 0xa4)
+#define OS02G10_REG_H_SIZE OS02G10_PAGE_REG16(0x02, 0xa6)
+
+#define OS02G10_REG_SIF_CTRL OS02G10_PAGE_REG8(0x02, 0x5e)
+#define OS02G10_ORIENTATION_BAYER_FIX 0x32
+
+#define OS02G10_LINK_FREQ_720MHZ (720 * HZ_PER_MHZ)
+
+/* OS02G10 native and active pixel array size */
+static const struct v4l2_rect os02g10_native_area = {
+ .top = 0,
+ .left = 0,
+ .width = 1928,
+ .height = 1088,
+};
+
+static const struct v4l2_rect os02g10_active_area = {
+ .top = 4,
+ .left = 4,
+ .width = 1920,
+ .height = 1080,
+};
+
+static const char * const os02g10_supply_name[] = {
+ "avdd", /* Analog power */
+ "dovdd", /* Digital I/O power */
+ "dvdd", /* Digital core power */
+};
+
+struct os02g10 {
+ struct device *dev;
+ struct regmap *cci;
+ struct v4l2_subdev sd;
+ struct media_pad pad;
+ struct clk *xclk;
+ struct gpio_desc *reset_gpio;
+ struct regulator_bulk_data supplies[ARRAY_SIZE(os02g10_supply_name)];
+
+ /* V4L2 Controls */
+ struct v4l2_ctrl_handler handler;
+ struct v4l2_ctrl *link_freq;
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *exposure;
+ struct v4l2_ctrl *vflip;
+ struct v4l2_ctrl *hflip;
+
+ u32 link_freq_index;
+
+ u8 current_page;
+ struct mutex page_lock;
+};
+
+struct os02g10_mode {
+ u32 width;
+ u32 height;
+ u32 vts_def;
+ u32 hts_def;
+ u32 exp_def;
+ u32 x_start;
+ u32 y_start;
+};
+
+static const struct cci_reg_sequence os02g10_common_regs[] = {
+ { OS02G10_REG_PLL_DIV_CTRL, 0x0a},
+ { OS02G10_REG_PLL_DCTL_BIAS_CTRL, 0x04},
+ { OS02G10_REG_GATE_EN_CTRL, 0x11},
+ { OS02G10_REG_DPLL_NC, 0x06},
+ { OS02G10_REG_MP_PHASE_CTRL, 0x20},
+ { OS02G10_PAGE_REG8(0x01, 0x19), 0x50},
+ { OS02G10_PAGE_REG8(0x01, 0x1a), 0x0c},
+ { OS02G10_PAGE_REG8(0x01, 0x1b), 0x0d},
+ { OS02G10_PAGE_REG8(0x01, 0x1c), 0x00},
+ { OS02G10_PAGE_REG8(0x01, 0x1d), 0x75},
+ { OS02G10_PAGE_REG8(0x01, 0x1e), 0x52},
+ { OS02G10_PAGE_REG8(0x01, 0x22), 0x14},
+ { OS02G10_PAGE_REG8(0x01, 0x25), 0x44},
+ { OS02G10_PAGE_REG8(0x01, 0x26), 0x0f},
+ { OS02G10_REG_ULP_PWD_DUMMY_CTRL, 0xca},
+ { OS02G10_PAGE_REG8(0x01, 0x3d), 0x4a},
+ { OS02G10_PAGE_REG8(0x01, 0x40), 0x0f},
+ { OS02G10_PAGE_REG8(0x01, 0x43), 0x38},
+ { OS02G10_REG_DC_LEVEL_LIMIT_EN, 0x01},
+ { OS02G10_REG_DC_LEVEL_LIMIT_L, 0x00},
+ { OS02G10_REG_DC_BLC_LIMIT_H, 0x32},
+ { OS02G10_PAGE_REG8(0x01, 0x50), 0x01},
+ { OS02G10_PAGE_REG8(0x01, 0x51), 0x28},
+ { OS02G10_PAGE_REG8(0x01, 0x52), 0x20},
+ { OS02G10_PAGE_REG8(0x01, 0x53), 0x03},
+ { OS02G10_PAGE_REG8(0x01, 0x57), 0x16},
+ { OS02G10_PAGE_REG8(0x01, 0x59), 0x01},
+ { OS02G10_PAGE_REG8(0x01, 0x5a), 0x01},
+ { OS02G10_PAGE_REG8(0x01, 0x5d), 0x04},
+ { OS02G10_PAGE_REG8(0x01, 0x6a), 0x04},
+ { OS02G10_PAGE_REG8(0x01, 0x6b), 0x03},
+ { OS02G10_PAGE_REG8(0x01, 0x6e), 0x28},
+ { OS02G10_PAGE_REG8(0x01, 0x71), 0xc2},
+ { OS02G10_PAGE_REG8(0x01, 0x72), 0x04},
+ { OS02G10_PAGE_REG8(0x01, 0x73), 0x38},
+ { OS02G10_PAGE_REG8(0x01, 0x74), 0x04},
+ { OS02G10_PAGE_REG8(0x01, 0x79), 0x00},
+ { OS02G10_PAGE_REG8(0x01, 0x7a), 0xb2},
+ { OS02G10_PAGE_REG8(0x01, 0x7b), 0x10},
+ { OS02G10_REG_HS_LP_CTRL, 0x02},
+ { OS02G10_REG_HS_LEVEL, 0x03},
+ { OS02G10_REG_HS_DRV, 0x55},
+ { OS02G10_PAGE_REG8(0x01, 0xb8), 0x70},
+ { OS02G10_PAGE_REG8(0x01, 0xb9), 0x70},
+ { OS02G10_PAGE_REG8(0x01, 0xba), 0x70},
+ { OS02G10_PAGE_REG8(0x01, 0xbb), 0x70},
+ { OS02G10_PAGE_REG8(0x01, 0xbc), 0x00},
+ { OS02G10_PAGE_REG8(0x01, 0xc4), 0x6d},
+ { OS02G10_PAGE_REG8(0x01, 0xc5), 0x6d},
+ { OS02G10_PAGE_REG8(0x01, 0xc6), 0x6d},
+ { OS02G10_PAGE_REG8(0x01, 0xc7), 0x6d},
+ { OS02G10_PAGE_REG8(0x01, 0xcc), 0x11},
+ { OS02G10_PAGE_REG8(0x01, 0xcd), 0xe0},
+ { OS02G10_PAGE_REG8(0x01, 0xd0), 0x1b},
+ { OS02G10_PAGE_REG8(0x01, 0xd2), 0x76},
+ { OS02G10_PAGE_REG8(0x01, 0xd3), 0x68},
+ { OS02G10_PAGE_REG8(0x01, 0xd4), 0x68},
+ { OS02G10_PAGE_REG8(0x01, 0xd5), 0x73},
+ { OS02G10_PAGE_REG8(0x01, 0xd6), 0x73},
+ { OS02G10_PAGE_REG8(0x01, 0xe8), 0x55},
+ { OS02G10_REG_GB_SUBOFFSET, 0x40},
+ { OS02G10_REG_BLUE_SUBOFFSET, 0x40},
+ { OS02G10_REG_RED_SUBOFFSET, 0x40},
+ { OS02G10_REG_GR_SUBOFFSET, 0x40},
+ { OS02G10_REG_ABL_TRIGGER, 0x1c},
+ { OS02G10_REG_ABL, 0x33},
+ { OS02G10_PAGE_REG8(0x01, 0xfc), 0x80},
+ { OS02G10_PAGE_REG8(0x01, 0xfe), 0x80},
+ { OS02G10_PAGE_REG8(0x03, 0x03), 0x67},
+ { OS02G10_PAGE_REG8(0x03, 0x00), 0x59},
+ { OS02G10_PAGE_REG8(0x03, 0x04), 0x11},
+ { OS02G10_PAGE_REG8(0x03, 0x05), 0x04},
+ { OS02G10_PAGE_REG8(0x03, 0x06), 0x0c},
+ { OS02G10_PAGE_REG8(0x03, 0x07), 0x08},
+ { OS02G10_PAGE_REG8(0x03, 0x08), 0x08},
+ { OS02G10_PAGE_REG8(0x03, 0x09), 0x4f},
+ { OS02G10_PAGE_REG8(0x03, 0x0b), 0x08},
+ { OS02G10_PAGE_REG8(0x03, 0x0d), 0x26},
+ { OS02G10_PAGE_REG8(0x03, 0x0f), 0x00},
+ { OS02G10_PAGE_REG8(0x02, 0x34), 0xfe},
+ { OS02G10_REG_MIPI_TX_SPEED_CTRL, 0x05},
+};
+
+static const struct os02g10_mode supported_modes[] = {
+ {
+ .width = 1920,
+ .height = 1080,
+ .vts_def = 1246,
+ .hts_def = 1082,
+ .exp_def = 1100,
+ .x_start = 2,
+ .y_start = 6,
+ },
+};
+
+static const s64 link_freq_menu_items[] = {
+ OS02G10_LINK_FREQ_720MHZ,
+};
+
+static const char * const os02g10_test_pattern_menu[] = {
+ "Disabled",
+ "Colorbar",
+};
+
+static int os02g10_page_access(struct os02g10 *os02g10, u32 reg, int *err)
+{
+ u8 page = (reg & CCI_REG_PRIVATE_MASK) >> CCI_REG_PRIVATE_SHIFT;
+ int ret = 0;
+
+ if (err && *err)
+ return *err;
+
+ guard(mutex)(&os02g10->page_lock);
+
+ /* Perform page access before read/write */
+ if (os02g10->current_page == page)
+ return ret;
+
+ ret = cci_write(os02g10->cci, OS02G10_REG_PAGE_SELECT, page, err);
+ if (!ret)
+ os02g10->current_page = page;
+
+ return ret;
+}
+
+static int os02g10_read(struct os02g10 *os02g10, u32 reg, u64 *val, int *err)
+{
+ u32 addr = reg & ~CCI_REG_PRIVATE_MASK;
+ int ret;
+
+ ret = os02g10_page_access(os02g10, reg, err);
+ if (ret)
+ return ret;
+
+ return cci_read(os02g10->cci, addr, val, err);
+}
+
+static int os02g10_write(struct os02g10 *os02g10, u32 reg, u64 val, int *err)
+{
+ u32 addr = reg & ~CCI_REG_PRIVATE_MASK;
+ int ret;
+
+ ret = os02g10_page_access(os02g10, reg, err);
+ if (ret)
+ return ret;
+
+ return cci_write(os02g10->cci, addr, val, err);
+}
+
+static int os02g10_update_bits(struct os02g10 *os02g10, u32 reg, u64 mask,
+ u64 val, int *err)
+{
+ u32 addr = reg & ~CCI_REG_PRIVATE_MASK;
+ int ret;
+
+ ret = os02g10_page_access(os02g10, reg, err);
+ if (ret)
+ return ret;
+
+ return cci_update_bits(os02g10->cci, addr, mask, val, err);
+}
+
+static int os02g10_multi_reg_write(struct os02g10 *os02g10,
+ const struct cci_reg_sequence *regs,
+ unsigned int num_regs, int *err)
+{
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < num_regs; i++) {
+ ret = os02g10_write(os02g10, regs[i].reg, regs[i].val, err);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static inline struct os02g10 *to_os02g10(struct v4l2_subdev *_sd)
+{
+ return container_of_const(_sd, struct os02g10, sd);
+}
+
+static u32 os02g10_get_format_code(struct os02g10 *os02g10)
+{
+ static const u32 codes[2][2] = {
+ { MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SGBRG10_1X10, },
+ { MEDIA_BUS_FMT_SGRBG10_1X10, MEDIA_BUS_FMT_SRGGB10_1X10, },
+ };
+
+ u32 code = codes[os02g10->vflip->val][os02g10->hflip->val];
+
+ return code;
+}
+
+static int os02g10_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct os02g10 *os02g10 = container_of_const(ctrl->handler,
+ struct os02g10, handler);
+ struct v4l2_subdev_state *state;
+ struct v4l2_mbus_framefmt *fmt;
+ int ret = 0;
+
+ state = v4l2_subdev_get_locked_active_state(&os02g10->sd);
+ fmt = v4l2_subdev_state_get_format(state, 0);
+
+ if (ctrl->id == V4L2_CID_VBLANK) {
+ /* Honour the VBLANK limits when setting exposure */
+ s64 max = fmt->height + ctrl->val - OS02G10_EXPOSURE_MARGIN;
+
+ ret = __v4l2_ctrl_modify_range(os02g10->exposure,
+ os02g10->exposure->minimum, max,
+ os02g10->exposure->step,
+ os02g10->exposure->default_value);
+ if (ret)
+ return ret;
+ }
+
+ if (pm_runtime_get_if_active(os02g10->dev) == 0)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ os02g10_write(os02g10, OS02G10_REG_LONG_EXPOSURE, ctrl->val, &ret);
+ break;
+ case V4L2_CID_ANALOGUE_GAIN:
+ os02g10_write(os02g10, OS02G10_REG_ANALOG_GAIN, ctrl->val, &ret);
+ break;
+ case V4L2_CID_DIGITAL_GAIN:
+ os02g10_write(os02g10, OS02G10_REG_DIGITAL_GAIN_L,
+ (ctrl->val & 0xff), &ret);
+ os02g10_write(os02g10, OS02G10_REG_DIGITAL_GAIN_H,
+ ((ctrl->val >> 8) & 0x7), &ret);
+ break;
+ case V4L2_CID_VBLANK:
+ u64 vts = ctrl->val + fmt->height;
+
+ os02g10_update_bits(os02g10, OS02G10_REG_FRAME_TEST_CTRL,
+ OS02G10_FRAME_EXP_SEPERATE_EN,
+ OS02G10_FRAME_EXP_SEPERATE_EN, &ret);
+ os02g10_write(os02g10, OS02G10_REG_FRAME_LENGTH, vts, &ret);
+ break;
+ case V4L2_CID_HFLIP:
+ case V4L2_CID_VFLIP:
+ os02g10_write(os02g10, OS02G10_REG_FLIP_MIRROR,
+ os02g10->hflip->val | os02g10->vflip->val << 1,
+ &ret);
+ os02g10_write(os02g10, OS02G10_REG_SIF_CTRL,
+ OS02G10_ORIENTATION_BAYER_FIX, &ret);
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ os02g10_update_bits(os02g10,
+ OS02G10_REG_FRAME_TEST_CTRL,
+ OS02G10_TEST_PATTERN_ENABLE,
+ ctrl->val ? OS02G10_TEST_PATTERN_ENABLE : 0,
+ &ret);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ os02g10_write(os02g10, OS02G10_REG_FRAME_SYNC, 0x01, &ret);
+
+ pm_runtime_put(os02g10->dev);
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops os02g10_ctrl_ops = {
+ .s_ctrl = os02g10_set_ctrl,
+};
+
+static int os02g10_init_controls(struct os02g10 *os02g10)
+{
+ const struct os02g10_mode *mode = &supported_modes[0];
+ u64 vblank_def, hblank_def, exp_max, pixel_rate;
+ struct v4l2_fwnode_device_properties props;
+ struct v4l2_ctrl_handler *ctrl_hdlr;
+ int ret;
+
+ ctrl_hdlr = &os02g10->handler;
+ v4l2_ctrl_handler_init(ctrl_hdlr, 12);
+
+ /* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
+ pixel_rate = div_u64(OS02G10_LINK_FREQ_720MHZ * 2 * 2, 10);
+ v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops, V4L2_CID_PIXEL_RATE, 0,
+ pixel_rate, 1, pixel_rate);
+
+ os02g10->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ os02g10->link_freq_index,
+ 0, link_freq_menu_items);
+ if (os02g10->link_freq)
+ os02g10->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ /*
+ * Multiply by 2 to ensure positive hblank.
+ * Datasheet does not provide information about the unit of HTS.
+ */
+ hblank_def = (mode->hts_def * 2) - mode->width;
+ os02g10->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_HBLANK, hblank_def, hblank_def,
+ 1, hblank_def);
+ if (os02g10->hblank)
+ os02g10->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ vblank_def = mode->vts_def - mode->height;
+ os02g10->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_VBLANK, vblank_def,
+ OS02G10_FRAME_LENGTH_MAX - mode->height,
+ 1, vblank_def);
+
+ exp_max = mode->vts_def - OS02G10_EXPOSURE_MARGIN;
+ os02g10->exposure =
+ v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_EXPOSURE,
+ OS02G10_EXPOSURE_MIN, exp_max,
+ OS02G10_EXPOSURE_STEP, mode->exp_def);
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_ANALOGUE_GAIN, OS02G10_ANALOG_GAIN_MIN,
+ OS02G10_ANALOG_GAIN_MAX, OS02G10_ANALOG_GAIN_STEP,
+ OS02G10_ANALOG_GAIN_DEFAULT);
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_DIGITAL_GAIN, OS02G10_DIGITAL_GAIN_MIN,
+ OS02G10_DIGITAL_GAIN_MAX, OS02G10_DIGITAL_GAIN_STEP,
+ OS02G10_DIGITAL_GAIN_DEFAULT);
+
+ os02g10->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ if (os02g10->hflip)
+ os02g10->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
+
+ os02g10->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ if (os02g10->vflip)
+ os02g10->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
+
+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &os02g10_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(os02g10_test_pattern_menu) - 1,
+ 0, 0, os02g10_test_pattern_menu);
+ if (ctrl_hdlr->error) {
+ ret = ctrl_hdlr->error;
+ dev_err(os02g10->dev, "control init failed (%d)\n", ret);
+ goto err_handler_free;
+ }
+
+ ret = v4l2_fwnode_device_parse(os02g10->dev, &props);
+ if (ret)
+ goto err_handler_free;
+
+ ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr,
+ &os02g10_ctrl_ops, &props);
+ if (ret)
+ goto err_handler_free;
+
+ os02g10->sd.ctrl_handler = ctrl_hdlr;
+
+ return 0;
+
+err_handler_free:
+ v4l2_ctrl_handler_free(ctrl_hdlr);
+
+ return ret;
+}
+
+static int os02g10_set_framefmt(struct os02g10 *os02g10,
+ struct v4l2_subdev_state *state)
+{
+ const struct v4l2_mbus_framefmt *format;
+ const struct os02g10_mode *mode;
+ int ret = 0;
+
+ format = v4l2_subdev_state_get_format(state, 0);
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes), width,
+ height, format->width, format->height);
+
+ os02g10_write(os02g10, OS02G10_REG_V_START, mode->y_start, &ret);
+ os02g10_write(os02g10, OS02G10_REG_V_SIZE, mode->height, &ret);
+ os02g10_write(os02g10, OS02G10_REG_V_SIZE_MIPI, mode->height, &ret);
+ os02g10_write(os02g10, OS02G10_REG_H_START, mode->x_start, &ret);
+ os02g10_write(os02g10, OS02G10_REG_H_SIZE, mode->width, &ret);
+ os02g10_write(os02g10, OS02G10_REG_H_SIZE_MIPI, mode->width, &ret);
+
+ return ret;
+}
+
+static int os02g10_enable_streams(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state, u32 pad,
+ u64 streams_mask)
+{
+ struct os02g10 *os02g10 = to_os02g10(sd);
+ int ret;
+
+ ret = pm_runtime_resume_and_get(os02g10->dev);
+ if (ret < 0)
+ return ret;
+
+ ret = os02g10_multi_reg_write(os02g10, os02g10_common_regs,
+ ARRAY_SIZE(os02g10_common_regs), NULL);
+ if (ret) {
+ dev_err(os02g10->dev, "failed to write common registers\n");
+ goto err_rpm_put;
+ }
+
+ ret = os02g10_set_framefmt(os02g10, state);
+ if (ret) {
+ dev_err(os02g10->dev, "failed to set frame foramt\n");
+ goto err_rpm_put;
+ }
+
+ /* Apply customized values from user */
+ ret = __v4l2_ctrl_handler_setup(os02g10->sd.ctrl_handler);
+ if (ret)
+ goto err_rpm_put;
+
+ ret = os02g10_write(os02g10, OS02G10_REG_STREAM_CTRL,
+ OS02G10_STREAM_CTRL_ON, NULL);
+ if (ret)
+ goto err_rpm_put;
+
+ /* vflip and hflip cannot change during streaming */
+ __v4l2_ctrl_grab(os02g10->vflip, true);
+ __v4l2_ctrl_grab(os02g10->hflip, true);
+
+ return 0;
+
+err_rpm_put:
+ pm_runtime_put(os02g10->dev);
+ return ret;
+}
+
+static int os02g10_disable_streams(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state, u32 pad,
+ u64 streams_mask)
+{
+ struct os02g10 *os02g10 = to_os02g10(sd);
+ int ret;
+
+ ret = os02g10_write(os02g10, OS02G10_REG_STREAM_CTRL,
+ OS02G10_STREAM_CTRL_OFF, NULL);
+ if (ret)
+ dev_err(os02g10->dev, "Failed to stop stream\n");
+
+ __v4l2_ctrl_grab(os02g10->vflip, false);
+ __v4l2_ctrl_grab(os02g10->hflip, false);
+
+ pm_runtime_put(os02g10->dev);
+
+ return ret;
+}
+
+static int os02g10_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_NATIVE_SIZE:
+ sel->r = os02g10_native_area;
+ return 0;
+ case V4L2_SEL_TGT_CROP:
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ sel->r = os02g10_active_area;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int os02g10_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ struct os02g10 *os02g10 = to_os02g10(sd);
+
+ if (code->index)
+ return -EINVAL;
+
+ code->code = os02g10_get_format_code(os02g10);
+
+ return 0;
+}
+
+static int os02g10_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ struct os02g10 *os02g10 = to_os02g10(sd);
+
+ if (fse->index >= ARRAY_SIZE(supported_modes))
+ return -EINVAL;
+
+ if (fse->code != os02g10_get_format_code(os02g10))
+ return -EINVAL;
+
+ fse->min_width = supported_modes[fse->index].width;
+ fse->max_width = fse->min_width;
+ fse->min_height = supported_modes[fse->index].height;
+ fse->max_height = fse->min_height;
+
+ return 0;
+}
+
+static int os02g10_set_pad_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct os02g10 *os02g10 = to_os02g10(sd);
+ struct v4l2_mbus_framefmt *format;
+ const struct os02g10_mode *mode;
+ int ret;
+
+ format = v4l2_subdev_state_get_format(sd_state, 0);
+
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes),
+ width, height,
+ fmt->format.width, fmt->format.height);
+
+ fmt->format.code = os02g10_get_format_code(os02g10);
+ fmt->format.width = mode->width;
+ fmt->format.height = mode->height;
+ fmt->format.field = V4L2_FIELD_NONE;
+ fmt->format.colorspace = V4L2_COLORSPACE_RAW;
+ fmt->format.quantization = V4L2_QUANTIZATION_FULL_RANGE;
+ fmt->format.xfer_func = V4L2_XFER_FUNC_NONE;
+
+ *format = fmt->format;
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ u32 vblank_def = mode->vts_def - mode->height;
+
+ ret = __v4l2_ctrl_modify_range(os02g10->vblank, vblank_def,
+ OS02G10_FRAME_LENGTH_MAX -
+ mode->height, 1, vblank_def);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int os02g10_init_state(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state)
+{
+ struct os02g10 *os02g10 = to_os02g10(sd);
+ struct v4l2_subdev_format fmt = {
+ .which = V4L2_SUBDEV_FORMAT_TRY,
+ .format = {
+ .code = os02g10_get_format_code(os02g10),
+ .width = supported_modes[0].width,
+ .height = supported_modes[0].height,
+ },
+ };
+
+ os02g10_set_pad_format(sd, state, &fmt);
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops os02g10_video_ops = {
+ .s_stream = v4l2_subdev_s_stream_helper,
+};
+
+static const struct v4l2_subdev_pad_ops os02g10_pad_ops = {
+ .enum_mbus_code = os02g10_enum_mbus_code,
+ .get_fmt = v4l2_subdev_get_fmt,
+ .set_fmt = os02g10_set_pad_format,
+ .get_selection = os02g10_get_selection,
+ .enum_frame_size = os02g10_enum_frame_size,
+ .enable_streams = os02g10_enable_streams,
+ .disable_streams = os02g10_disable_streams,
+};
+
+static const struct v4l2_subdev_ops os02g10_subdev_ops = {
+ .video = &os02g10_video_ops,
+ .pad = &os02g10_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops os02g10_internal_ops = {
+ .init_state = os02g10_init_state,
+};
+
+static int os02g10_power_on(struct device *dev)
+{
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct os02g10 *os02g10 = to_os02g10(sd);
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(os02g10_supply_name),
+ os02g10->supplies);
+ if (ret) {
+ dev_err(os02g10->dev, "failed to enable regulators\n");
+ return ret;
+ }
+
+ /* T4: delay from DOVDD stable to MCLK on */
+ fsleep(5 * USEC_PER_MSEC);
+
+ ret = clk_prepare_enable(os02g10->xclk);
+ if (ret) {
+ dev_err(os02g10->dev, "failed to enable clock\n");
+ goto err_regulator_off;
+ }
+
+ /* T3: delay from DVDD stable to sensor power up stable */
+ fsleep(5 * USEC_PER_MSEC);
+
+ gpiod_set_value_cansleep(os02g10->reset_gpio, 0);
+
+ /* T5: delay from sensor power up stable to SCCB initialization */
+ fsleep(5 * USEC_PER_MSEC);
+
+ return 0;
+
+err_regulator_off:
+ regulator_bulk_disable(ARRAY_SIZE(os02g10_supply_name), os02g10->supplies);
+ return ret;
+}
+
+static int os02g10_power_off(struct device *dev)
+{
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct os02g10 *os02g10 = to_os02g10(sd);
+
+ clk_disable_unprepare(os02g10->xclk);
+ gpiod_set_value_cansleep(os02g10->reset_gpio, 1);
+ regulator_bulk_disable(ARRAY_SIZE(os02g10_supply_name), os02g10->supplies);
+
+ return 0;
+}
+
+static int os02g10_identify_module(struct os02g10 *os02g10)
+{
+ u64 chip_id;
+ int ret;
+
+ ret = os02g10_read(os02g10, OS02G10_REG_CHIPID, &chip_id, NULL);
+ if (ret)
+ return dev_err_probe(os02g10->dev, ret,
+ "failed to read chip id %x\n",
+ OS02G10_CHIPID);
+
+ if (chip_id != OS02G10_CHIPID)
+ return dev_err_probe(os02g10->dev, -EIO,
+ "chip id mismatch: %x!=%llx\n",
+ OS02G10_CHIPID, chip_id);
+
+ return 0;
+}
+
+static int os02g10_parse_endpoint(struct os02g10 *os02g10)
+{
+ struct v4l2_fwnode_endpoint bus_cfg = {
+ .bus_type = V4L2_MBUS_CSI2_DPHY,
+ };
+ unsigned long link_freq_bitmap;
+ struct fwnode_handle *ep;
+ int ret;
+
+ ep = fwnode_graph_get_next_endpoint(dev_fwnode(os02g10->dev), NULL);
+ if (!ep)
+ return dev_err_probe(os02g10->dev, -ENXIO,
+ "Failed to get next endpoint\n");
+
+ ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
+ fwnode_handle_put(ep);
+ if (ret)
+ return ret;
+
+ if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2) {
+ ret = dev_err_probe(os02g10->dev, -EINVAL,
+ "only 2 data lanes are supported\n");
+ goto error_out;
+ }
+
+ ret = v4l2_link_freq_to_bitmap(os02g10->dev, bus_cfg.link_frequencies,
+ bus_cfg.nr_of_link_frequencies,
+ link_freq_menu_items,
+ ARRAY_SIZE(link_freq_menu_items),
+ &link_freq_bitmap);
+ if (ret) {
+ ret = dev_err_probe(os02g10->dev, -EINVAL,
+ "only 720MHz frequency is available\n");
+ goto error_out;
+ }
+
+ os02g10->link_freq_index = __ffs(link_freq_bitmap);
+
+error_out:
+ v4l2_fwnode_endpoint_free(&bus_cfg);
+
+ return ret;
+};
+
+static int os02g10_probe(struct i2c_client *client)
+{
+ struct os02g10 *os02g10;
+ unsigned int xclk_freq;
+ int ret;
+
+ os02g10 = devm_kzalloc(&client->dev, sizeof(*os02g10), GFP_KERNEL);
+ if (!os02g10)
+ return -ENOMEM;
+
+ os02g10->dev = &client->dev;
+
+ v4l2_i2c_subdev_init(&os02g10->sd, client, &os02g10_subdev_ops);
+ os02g10->sd.internal_ops = &os02g10_internal_ops;
+
+ os02g10->cci = devm_cci_regmap_init_i2c(client, 8);
+ if (IS_ERR(os02g10->cci))
+ return dev_err_probe(os02g10->dev, PTR_ERR(os02g10->cci),
+ "failed to initialize CCI\n");
+
+ /* Set Current page to 0 */
+ os02g10->current_page = 0;
+
+ ret = devm_mutex_init(os02g10->dev, &os02g10->page_lock);
+ if (ret)
+ return dev_err_probe(os02g10->dev, ret,
+ "Failed to initialize lock\n");
+
+ /* Get system clock (xvclk) */
+ os02g10->xclk = devm_v4l2_sensor_clk_get(os02g10->dev, NULL);
+ if (IS_ERR(os02g10->xclk))
+ return dev_err_probe(os02g10->dev, PTR_ERR(os02g10->xclk),
+ "failed to get xclk\n");
+
+ xclk_freq = clk_get_rate(os02g10->xclk);
+ if (xclk_freq != OS02G10_XCLK_FREQ)
+ return dev_err_probe(os02g10->dev, -EINVAL,
+ "xclk frequency not supported: %u Hz\n",
+ xclk_freq);
+
+ for (unsigned int i = 0; i < ARRAY_SIZE(os02g10_supply_name); i++)
+ os02g10->supplies[i].supply = os02g10_supply_name[i];
+
+ ret = devm_regulator_bulk_get(os02g10->dev,
+ ARRAY_SIZE(os02g10_supply_name),
+ os02g10->supplies);
+ if (ret)
+ return dev_err_probe(os02g10->dev, ret,
+ "failed to get regulators\n");
+
+ ret = os02g10_parse_endpoint(os02g10);
+ if (ret)
+ return dev_err_probe(os02g10->dev, ret,
+ "failed to parse endpoint configuration\n");
+
+ os02g10->reset_gpio = devm_gpiod_get_optional(os02g10->dev,
+ "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(os02g10->reset_gpio))
+ return dev_err_probe(os02g10->dev, PTR_ERR(os02g10->reset_gpio),
+ "failed to get reset GPIO\n");
+
+ ret = os02g10_power_on(os02g10->dev);
+ if (ret)
+ return ret;
+
+ ret = os02g10_identify_module(os02g10);
+ if (ret)
+ goto error_power_off;
+
+ ret = os02g10_init_controls(os02g10);
+ if (ret)
+ goto error_power_off;
+
+ /* Initialize subdev */
+ os02g10->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ os02g10->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ os02g10->pad.flags = MEDIA_PAD_FL_SOURCE;
+
+ ret = media_entity_pads_init(&os02g10->sd.entity, 1, &os02g10->pad);
+ if (ret) {
+ dev_err_probe(os02g10->dev, ret, "failed to init entity pads\n");
+ goto error_handler_free;
+ }
+
+ os02g10->sd.state_lock = os02g10->handler.lock;
+ ret = v4l2_subdev_init_finalize(&os02g10->sd);
+ if (ret) {
+ dev_err_probe(os02g10->dev, ret, "subdev init error\n");
+ goto error_media_entity;
+ }
+
+ pm_runtime_set_active(os02g10->dev);
+ pm_runtime_enable(os02g10->dev);
+
+ ret = v4l2_async_register_subdev_sensor(&os02g10->sd);
+ if (ret) {
+ dev_err_probe(os02g10->dev, ret,
+ "failed to register os02g10 sub-device\n");
+ goto error_subdev_cleanup;
+ }
+
+ pm_runtime_idle(os02g10->dev);
+ return 0;
+
+error_subdev_cleanup:
+ v4l2_subdev_cleanup(&os02g10->sd);
+ pm_runtime_disable(os02g10->dev);
+ pm_runtime_set_suspended(os02g10->dev);
+
+error_media_entity:
+ media_entity_cleanup(&os02g10->sd.entity);
+
+error_handler_free:
+ v4l2_ctrl_handler_free(os02g10->sd.ctrl_handler);
+
+error_power_off:
+ os02g10_power_off(os02g10->dev);
+
+ return ret;
+}
+
+static void os02g10_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct os02g10 *os02g10 = to_os02g10(sd);
+
+ v4l2_async_unregister_subdev(sd);
+ v4l2_subdev_cleanup(&os02g10->sd);
+ media_entity_cleanup(&sd->entity);
+ v4l2_ctrl_handler_free(os02g10->sd.ctrl_handler);
+
+ pm_runtime_disable(&client->dev);
+ if (!pm_runtime_status_suspended(&client->dev)) {
+ os02g10_power_off(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+ }
+}
+
+static DEFINE_RUNTIME_DEV_PM_OPS(os02g10_pm_ops,
+ os02g10_power_off, os02g10_power_on, NULL);
+
+static const struct of_device_id os02g10_id[] = {
+ { .compatible = "ovti,os02g10" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, os02g10_id);
+
+static struct i2c_driver os02g10_driver = {
+ .driver = {
+ .name = "os02g10",
+ .pm = pm_ptr(&os02g10_pm_ops),
+ .of_match_table = os02g10_id,
+ },
+ .probe = os02g10_probe,
+ .remove = os02g10_remove,
+};
+module_i2c_driver(os02g10_driver);
+
+MODULE_DESCRIPTION("OS02G10 Camera Sensor Driver");
+MODULE_AUTHOR("Tarang Raval <tarang.raval@siliconsignals.io>");
+MODULE_AUTHOR("Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>");
+MODULE_LICENSE("GPL");
--
2.34.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 8:49 ` [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver Elgin Perumbilly
@ 2026-04-14 9:27 ` Laurent Pinchart
2026-04-14 9:43 ` Elgin Perumbilly
2026-04-14 9:57 ` Sakari Ailus
1 sibling, 1 reply; 15+ messages in thread
From: Laurent Pinchart @ 2026-04-14 9:27 UTC (permalink / raw)
To: Elgin Perumbilly
Cc: sakari.ailus, tarang.raval, Mauro Carvalho Chehab, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Hans Verkuil, Hans de Goede,
Vladimir Zapolskiy, Mehdi Djait, Benjamin Mugnier,
Sylvain Petinot, Hardevsinh Palaniya, Jingjing Xiong, linux-media,
devicetree, linux-kernel
Hi Elgin,
I sent a review comment on v1.
On Tue, Apr 14, 2026 at 02:19:45PM +0530, Elgin Perumbilly wrote:
> Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
>
> The Omnivision os02g10 is a CMOS image sensor with an active array size of
> 1920 x 1080.
>
> The following features are supported:
> - Manual exposure an gain control support
> - vblank/hblank control support
> - vflip/hflip control support
> - Test pattern control support
> - Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
>
> Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
> ---
> MAINTAINERS | 1 +
> drivers/media/i2c/Kconfig | 10 +
> drivers/media/i2c/Makefile | 1 +
> drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
> 4 files changed, 1051 insertions(+)
> create mode 100644 drivers/media/i2c/os02g10.c
[snip]
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 9:27 ` Laurent Pinchart
@ 2026-04-14 9:43 ` Elgin Perumbilly
2026-04-14 9:57 ` Laurent Pinchart
0 siblings, 1 reply; 15+ messages in thread
From: Elgin Perumbilly @ 2026-04-14 9:43 UTC (permalink / raw)
To: Laurent Pinchart
Cc: sakari.ailus@linux.intel.com, Tarang Raval, Mauro Carvalho Chehab,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Hans Verkuil,
Hans de Goede, Vladimir Zapolskiy, Mehdi Djait, Benjamin Mugnier,
Sylvain Petinot, Hardevsinh Palaniya, Jingjing Xiong,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Hi Laurent,
> I sent a review comment on v1.
>
> On Tue, Apr 14, 2026 at 02:19:45PM +0530, Elgin Perumbilly wrote:
> > Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
> >
> > The Omnivision os02g10 is a CMOS image sensor with an active array size of
> > 1920 x 1080.
> >
> > The following features are supported:
> > - Manual exposure an gain control support
> > - vblank/hblank control support
> > - vflip/hflip control support
> > - Test pattern control support
> > - Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
> >
> > Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> > Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
> > ---
> > MAINTAINERS | 1 +
> > drivers/media/i2c/Kconfig | 10 +
> > drivers/media/i2c/Makefile | 1 +
> > drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
> > 4 files changed, 1051 insertions(+)
> > create mode 100644 drivers/media/i2c/os02g10.c
I have added a new function, os02g10_set_framefmt, which dynamically sets
the mode register.
Please let me know if I have missed anything or if further changes are
needed.
Best regards,
Elgin
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 9:43 ` Elgin Perumbilly
@ 2026-04-14 9:57 ` Laurent Pinchart
2026-04-14 10:06 ` sakari.ailus
2026-04-14 10:19 ` Tarang Raval
0 siblings, 2 replies; 15+ messages in thread
From: Laurent Pinchart @ 2026-04-14 9:57 UTC (permalink / raw)
To: Elgin Perumbilly
Cc: sakari.ailus@linux.intel.com, Tarang Raval, Mauro Carvalho Chehab,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Hans Verkuil,
Hans de Goede, Vladimir Zapolskiy, Mehdi Djait, Benjamin Mugnier,
Sylvain Petinot, Hardevsinh Palaniya, Jingjing Xiong,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
On Tue, Apr 14, 2026 at 09:43:32AM +0000, Elgin Perumbilly wrote:
> Hi Laurent,
>
> > I sent a review comment on v1.
> >
> > On Tue, Apr 14, 2026 at 02:19:45PM +0530, Elgin Perumbilly wrote:
> > > Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
> > >
> > > The Omnivision os02g10 is a CMOS image sensor with an active array size of
> > > 1920 x 1080.
> > >
> > > The following features are supported:
> > > - Manual exposure an gain control support
> > > - vblank/hblank control support
> > > - vflip/hflip control support
> > > - Test pattern control support
> > > - Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
> > >
> > > Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> > > Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
> > > ---
> > > MAINTAINERS | 1 +
> > > drivers/media/i2c/Kconfig | 10 +
> > > drivers/media/i2c/Makefile | 1 +
> > > drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
> > > 4 files changed, 1051 insertions(+)
> > > create mode 100644 drivers/media/i2c/os02g10.c
>
> I have added a new function, os02g10_set_framefmt, which dynamically sets
> the mode register.
>
> Please let me know if I have missed anything or if further changes are
> needed.
You also need to drop the supported_modes array, and implement support
for .set_selection().
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 8:49 ` [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver Elgin Perumbilly
2026-04-14 9:27 ` Laurent Pinchart
@ 2026-04-14 9:57 ` Sakari Ailus
1 sibling, 0 replies; 15+ messages in thread
From: Sakari Ailus @ 2026-04-14 9:57 UTC (permalink / raw)
To: Elgin Perumbilly
Cc: tarang.raval, Mauro Carvalho Chehab, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Hans Verkuil, Hans de Goede,
Vladimir Zapolskiy, Mehdi Djait, Laurent Pinchart,
Benjamin Mugnier, Sylvain Petinot, Hardevsinh Palaniya,
Jingjing Xiong, linux-media, devicetree, linux-kernel
Hi Elgin,
Thanks for the update.
On Tue, Apr 14, 2026 at 02:19:45PM +0530, Elgin Perumbilly wrote:
> Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
>
> The Omnivision os02g10 is a CMOS image sensor with an active array size of
> 1920 x 1080.
>
> The following features are supported:
> - Manual exposure an gain control support
> - vblank/hblank control support
> - vflip/hflip control support
> - Test pattern control support
> - Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
>
> Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
> ---
> MAINTAINERS | 1 +
> drivers/media/i2c/Kconfig | 10 +
> drivers/media/i2c/Makefile | 1 +
> drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
> 4 files changed, 1051 insertions(+)
> create mode 100644 drivers/media/i2c/os02g10.c
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 13409c71a765..28827e77ea31 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -19463,6 +19463,7 @@ M: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> L: linux-media@vger.kernel.org
> S: Maintained
> F: Documentation/devicetree/bindings/media/i2c/ovti,os02g10.yaml
> +F: drivers/media/i2c/os02g10.c
>
> OMNIVISION OS05B10 SENSOR DRIVER
> M: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index 5eb1e0e0a87a..dd6e9562acf6 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -372,6 +372,16 @@ config VIDEO_OG0VE1B
> To compile this driver as a module, choose M here: the
> module will be called og0ve1b.
>
> +config VIDEO_OS02G10
> + tristate "OmniVision OS02G10 sensor support"
> + select V4L2_CCI_I2C
> + help
> + This is a Video4Linux2 sensor driver for Omnivision
> + OS02G10 camera sensor.
> +
> + To compile this driver as a module, choose M here: the
> + module will be called os02g10.
> +
> config VIDEO_OS05B10
> tristate "OmniVision OS05B10 sensor support"
> select V4L2_CCI_I2C
> diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
> index a3a6396df3c4..a7554d2eb140 100644
> --- a/drivers/media/i2c/Makefile
> +++ b/drivers/media/i2c/Makefile
> @@ -84,6 +84,7 @@ obj-$(CONFIG_VIDEO_MT9V032) += mt9v032.o
> obj-$(CONFIG_VIDEO_MT9V111) += mt9v111.o
> obj-$(CONFIG_VIDEO_OG01A1B) += og01a1b.o
> obj-$(CONFIG_VIDEO_OG0VE1B) += og0ve1b.o
> +obj-$(CONFIG_VIDEO_OS02G10) += os02g10.o
> obj-$(CONFIG_VIDEO_OS05B10) += os05b10.o
> obj-$(CONFIG_VIDEO_OV01A10) += ov01a10.o
> obj-$(CONFIG_VIDEO_OV02A10) += ov02a10.o
> diff --git a/drivers/media/i2c/os02g10.c b/drivers/media/i2c/os02g10.c
> new file mode 100644
> index 000000000000..b8df79162f88
> --- /dev/null
> +++ b/drivers/media/i2c/os02g10.c
> @@ -0,0 +1,1039 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * V4L2 Support for the OS02G10
> + *
> + * Copyright (C) 2026 Silicon Signals Pvt. Ltd.
> + *
> + */
> +
> +#include <linux/array_size.h>
> +#include <linux/bitops.h>
> +#include <linux/cleanup.h>
> +#include <linux/clk.h>
> +#include <linux/container_of.h>
> +#include <linux/delay.h>
> +#include <linux/err.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/i2c.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/property.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/units.h>
> +#include <linux/types.h>
> +#include <linux/time.h>
> +#include <linux/regmap.h>
> +
> +#include <media/v4l2-cci.h>
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +#include <media/v4l2-fwnode.h>
> +#include <media/v4l2-mediabus.h>
> +
> +#define OS02G10_XCLK_FREQ (24 * HZ_PER_MHZ)
> +
> +/* Add page number in CCI private bits [31:28] of the register address */
> +#define OS02G10_PAGE_REG8(p, x) (((p) << CCI_REG_PRIVATE_SHIFT) | CCI_REG8(x))
> +#define OS02G10_PAGE_REG16(p, x) (((p) << CCI_REG_PRIVATE_SHIFT) | CCI_REG16(x))
> +#define OS02G10_PAGE_REG24(p, x) (((p) << CCI_REG_PRIVATE_SHIFT) | CCI_REG24(x))
I just noticed regmap supports paging through register ranges. Could this
work for the driver as-is?
> +
> +#define OS02G10_REG_PAGE_SELECT CCI_REG8(0xfd)
> +
> +/* Page 0 */
> +#define OS02G10_REG_CHIPID OS02G10_PAGE_REG24(0x00, 0x02)
> +#define OS02G10_CHIPID 0x560247
> +
> +#define OS02G10_REG_PLL_DIV_CTRL OS02G10_PAGE_REG8(0x00, 0x30)
> +#define OS02G10_REG_PLL_DCTL_BIAS_CTRL OS02G10_PAGE_REG8(0x00, 0x35)
> +#define OS02G10_REG_GATE_EN_CTRL OS02G10_PAGE_REG8(0x00, 0x38)
> +#define OS02G10_REG_DPLL_NC OS02G10_PAGE_REG8(0x00, 0x41)
> +#define OS02G10_REG_MP_PHASE_CTRL OS02G10_PAGE_REG8(0x00, 0x44)
> +
> +/* Page 1 */
> +#define OS02G10_REG_STREAM_CTRL OS02G10_PAGE_REG8(0x01, 0xb1)
> +#define OS02G10_STREAM_CTRL_ON 0x03
> +#define OS02G10_STREAM_CTRL_OFF 0x00
> +
> +#define OS02G10_REG_FRAME_SYNC OS02G10_PAGE_REG8(0x01, 0x01)
> +
> +#define OS02G10_REG_FRAME_LENGTH OS02G10_PAGE_REG16(0x01, 0x0e)
> +#define OS02G10_FRAME_LENGTH_MAX 0xffff
> +#define OS02G10_REG_HBLANK OS02G10_PAGE_REG16(0x01, 0x09)
> +
> +#define OS02G10_REG_FRAME_TEST_CTRL OS02G10_PAGE_REG8(0x01, 0x0d)
> +#define OS02G10_FRAME_EXP_SEPERATE_EN BIT(4)
> +#define OS02G10_TEST_PATTERN_ENABLE BIT(0)
> +
> +#define OS02G10_REG_ULP_PWD_DUMMY_CTRL OS02G10_PAGE_REG8(0x01, 0x3c)
> +#define OS02G10_REG_DC_LEVEL_LIMIT_EN OS02G10_PAGE_REG8(0x01, 0x46)
> +#define OS02G10_REG_DC_LEVEL_LIMIT_L OS02G10_PAGE_REG8(0x01, 0x47)
> +#define OS02G10_REG_BLC_DATA_LIMIT_L OS02G10_PAGE_REG8(0x01, 0x48)
> +#define OS02G10_REG_DC_BLC_LIMIT_H OS02G10_PAGE_REG8(0x01, 0x49)
> +
> +#define OS02G10_REG_HS_LP_CTRL OS02G10_PAGE_REG8(0x01, 0x92)
> +#define OS02G10_REG_HS_LEVEL OS02G10_PAGE_REG8(0x01, 0x9d)
> +#define OS02G10_REG_HS_DRV OS02G10_PAGE_REG8(0x01, 0x9e)
> +
> +#define OS02G10_REG_GB_SUBOFFSET OS02G10_PAGE_REG8(0x01, 0xf0)
> +#define OS02G10_REG_BLUE_SUBOFFSET OS02G10_PAGE_REG8(0x01, 0xf1)
> +#define OS02G10_REG_RED_SUBOFFSET OS02G10_PAGE_REG8(0x01, 0xf2)
> +#define OS02G10_REG_GR_SUBOFFSET OS02G10_PAGE_REG8(0x01, 0xf3)
> +
> +#define OS02G10_REG_ABL_TRIGGER OS02G10_PAGE_REG8(0x01, 0xfa)
> +#define OS02G10_REG_ABL OS02G10_PAGE_REG8(0x01, 0xfb)
> +
> +#define OS02G10_REG_H_SIZE_MIPI OS02G10_PAGE_REG16(0x01, 0x8e)
> +#define OS02G10_REG_V_SIZE_MIPI OS02G10_PAGE_REG16(0x01, 0x90)
> +#define OS02G10_REG_MIPI_TX_SPEED_CTRL OS02G10_PAGE_REG8(0x01, 0xa1)
> +
> +#define OS02G10_REG_LONG_EXPOSURE OS02G10_PAGE_REG16(0x01, 0x03)
> +#define OS02G10_EXPOSURE_MIN 4
> +#define OS02G10_EXPOSURE_STEP 1
> +#define OS02G10_EXPOSURE_MARGIN 9
> +
> +#define OS02G10_REG_ANALOG_GAIN OS02G10_PAGE_REG8(0x01, 0x24)
> +#define OS02G10_ANALOG_GAIN_MIN 0x10
> +#define OS02G10_ANALOG_GAIN_MAX 0xf8
> +#define OS02G10_ANALOG_GAIN_STEP 1
> +#define OS02G10_ANALOG_GAIN_DEFAULT 0x10
> +
> +#define OS02G10_REG_DIGITAL_GAIN_H OS02G10_PAGE_REG8(0x01, 0x37)
> +#define OS02G10_REG_DIGITAL_GAIN_L OS02G10_PAGE_REG8(0x01, 0x39)
> +#define OS02G10_DIGITAL_GAIN_MIN 0x40
> +#define OS02G10_DIGITAL_GAIN_MAX 0x800
> +#define OS02G10_DIGITAL_GAIN_STEP 64
> +#define OS02G10_DIGITAL_GAIN_DEFAULT 0x40
> +
> +#define OS02G10_REG_FLIP_MIRROR OS02G10_PAGE_REG8(0x01, 0x3f)
> +#define OS02G10_FLIP BIT(1)
> +#define OS02G10_MIRROR BIT(0)
> +
> +/* Page 2 */
> +#define OS02G10_REG_V_START OS02G10_PAGE_REG16(0x02, 0xa0)
> +#define OS02G10_REG_V_SIZE OS02G10_PAGE_REG16(0x02, 0xa2)
> +#define OS02G10_REG_H_START OS02G10_PAGE_REG16(0x02, 0xa4)
> +#define OS02G10_REG_H_SIZE OS02G10_PAGE_REG16(0x02, 0xa6)
> +
> +#define OS02G10_REG_SIF_CTRL OS02G10_PAGE_REG8(0x02, 0x5e)
> +#define OS02G10_ORIENTATION_BAYER_FIX 0x32
> +
> +#define OS02G10_LINK_FREQ_720MHZ (720 * HZ_PER_MHZ)
> +
> +/* OS02G10 native and active pixel array size */
> +static const struct v4l2_rect os02g10_native_area = {
> + .top = 0,
> + .left = 0,
> + .width = 1928,
> + .height = 1088,
> +};
> +
> +static const struct v4l2_rect os02g10_active_area = {
> + .top = 4,
> + .left = 4,
> + .width = 1920,
> + .height = 1080,
> +};
> +
> +static const char * const os02g10_supply_name[] = {
> + "avdd", /* Analog power */
> + "dovdd", /* Digital I/O power */
> + "dvdd", /* Digital core power */
> +};
> +
> +struct os02g10 {
> + struct device *dev;
> + struct regmap *cci;
> + struct v4l2_subdev sd;
> + struct media_pad pad;
> + struct clk *xclk;
> + struct gpio_desc *reset_gpio;
> + struct regulator_bulk_data supplies[ARRAY_SIZE(os02g10_supply_name)];
> +
> + /* V4L2 Controls */
> + struct v4l2_ctrl_handler handler;
> + struct v4l2_ctrl *link_freq;
> + struct v4l2_ctrl *hblank;
> + struct v4l2_ctrl *vblank;
> + struct v4l2_ctrl *exposure;
> + struct v4l2_ctrl *vflip;
> + struct v4l2_ctrl *hflip;
> +
> + u32 link_freq_index;
> +
> + u8 current_page;
> + struct mutex page_lock;
> +};
> +
> +struct os02g10_mode {
> + u32 width;
> + u32 height;
> + u32 vts_def;
> + u32 hts_def;
> + u32 exp_def;
> + u32 x_start;
> + u32 y_start;
> +};
> +
> +static const struct cci_reg_sequence os02g10_common_regs[] = {
> + { OS02G10_REG_PLL_DIV_CTRL, 0x0a},
> + { OS02G10_REG_PLL_DCTL_BIAS_CTRL, 0x04},
> + { OS02G10_REG_GATE_EN_CTRL, 0x11},
> + { OS02G10_REG_DPLL_NC, 0x06},
> + { OS02G10_REG_MP_PHASE_CTRL, 0x20},
> + { OS02G10_PAGE_REG8(0x01, 0x19), 0x50},
> + { OS02G10_PAGE_REG8(0x01, 0x1a), 0x0c},
> + { OS02G10_PAGE_REG8(0x01, 0x1b), 0x0d},
> + { OS02G10_PAGE_REG8(0x01, 0x1c), 0x00},
> + { OS02G10_PAGE_REG8(0x01, 0x1d), 0x75},
> + { OS02G10_PAGE_REG8(0x01, 0x1e), 0x52},
> + { OS02G10_PAGE_REG8(0x01, 0x22), 0x14},
> + { OS02G10_PAGE_REG8(0x01, 0x25), 0x44},
> + { OS02G10_PAGE_REG8(0x01, 0x26), 0x0f},
> + { OS02G10_REG_ULP_PWD_DUMMY_CTRL, 0xca},
> + { OS02G10_PAGE_REG8(0x01, 0x3d), 0x4a},
> + { OS02G10_PAGE_REG8(0x01, 0x40), 0x0f},
> + { OS02G10_PAGE_REG8(0x01, 0x43), 0x38},
> + { OS02G10_REG_DC_LEVEL_LIMIT_EN, 0x01},
> + { OS02G10_REG_DC_LEVEL_LIMIT_L, 0x00},
> + { OS02G10_REG_DC_BLC_LIMIT_H, 0x32},
> + { OS02G10_PAGE_REG8(0x01, 0x50), 0x01},
> + { OS02G10_PAGE_REG8(0x01, 0x51), 0x28},
> + { OS02G10_PAGE_REG8(0x01, 0x52), 0x20},
> + { OS02G10_PAGE_REG8(0x01, 0x53), 0x03},
> + { OS02G10_PAGE_REG8(0x01, 0x57), 0x16},
> + { OS02G10_PAGE_REG8(0x01, 0x59), 0x01},
> + { OS02G10_PAGE_REG8(0x01, 0x5a), 0x01},
> + { OS02G10_PAGE_REG8(0x01, 0x5d), 0x04},
> + { OS02G10_PAGE_REG8(0x01, 0x6a), 0x04},
> + { OS02G10_PAGE_REG8(0x01, 0x6b), 0x03},
> + { OS02G10_PAGE_REG8(0x01, 0x6e), 0x28},
> + { OS02G10_PAGE_REG8(0x01, 0x71), 0xc2},
> + { OS02G10_PAGE_REG8(0x01, 0x72), 0x04},
> + { OS02G10_PAGE_REG8(0x01, 0x73), 0x38},
> + { OS02G10_PAGE_REG8(0x01, 0x74), 0x04},
> + { OS02G10_PAGE_REG8(0x01, 0x79), 0x00},
> + { OS02G10_PAGE_REG8(0x01, 0x7a), 0xb2},
> + { OS02G10_PAGE_REG8(0x01, 0x7b), 0x10},
> + { OS02G10_REG_HS_LP_CTRL, 0x02},
> + { OS02G10_REG_HS_LEVEL, 0x03},
> + { OS02G10_REG_HS_DRV, 0x55},
> + { OS02G10_PAGE_REG8(0x01, 0xb8), 0x70},
> + { OS02G10_PAGE_REG8(0x01, 0xb9), 0x70},
> + { OS02G10_PAGE_REG8(0x01, 0xba), 0x70},
> + { OS02G10_PAGE_REG8(0x01, 0xbb), 0x70},
> + { OS02G10_PAGE_REG8(0x01, 0xbc), 0x00},
> + { OS02G10_PAGE_REG8(0x01, 0xc4), 0x6d},
> + { OS02G10_PAGE_REG8(0x01, 0xc5), 0x6d},
> + { OS02G10_PAGE_REG8(0x01, 0xc6), 0x6d},
> + { OS02G10_PAGE_REG8(0x01, 0xc7), 0x6d},
> + { OS02G10_PAGE_REG8(0x01, 0xcc), 0x11},
> + { OS02G10_PAGE_REG8(0x01, 0xcd), 0xe0},
> + { OS02G10_PAGE_REG8(0x01, 0xd0), 0x1b},
> + { OS02G10_PAGE_REG8(0x01, 0xd2), 0x76},
> + { OS02G10_PAGE_REG8(0x01, 0xd3), 0x68},
> + { OS02G10_PAGE_REG8(0x01, 0xd4), 0x68},
> + { OS02G10_PAGE_REG8(0x01, 0xd5), 0x73},
> + { OS02G10_PAGE_REG8(0x01, 0xd6), 0x73},
> + { OS02G10_PAGE_REG8(0x01, 0xe8), 0x55},
> + { OS02G10_REG_GB_SUBOFFSET, 0x40},
> + { OS02G10_REG_BLUE_SUBOFFSET, 0x40},
> + { OS02G10_REG_RED_SUBOFFSET, 0x40},
> + { OS02G10_REG_GR_SUBOFFSET, 0x40},
> + { OS02G10_REG_ABL_TRIGGER, 0x1c},
> + { OS02G10_REG_ABL, 0x33},
> + { OS02G10_PAGE_REG8(0x01, 0xfc), 0x80},
> + { OS02G10_PAGE_REG8(0x01, 0xfe), 0x80},
> + { OS02G10_PAGE_REG8(0x03, 0x03), 0x67},
> + { OS02G10_PAGE_REG8(0x03, 0x00), 0x59},
> + { OS02G10_PAGE_REG8(0x03, 0x04), 0x11},
> + { OS02G10_PAGE_REG8(0x03, 0x05), 0x04},
> + { OS02G10_PAGE_REG8(0x03, 0x06), 0x0c},
> + { OS02G10_PAGE_REG8(0x03, 0x07), 0x08},
> + { OS02G10_PAGE_REG8(0x03, 0x08), 0x08},
> + { OS02G10_PAGE_REG8(0x03, 0x09), 0x4f},
> + { OS02G10_PAGE_REG8(0x03, 0x0b), 0x08},
> + { OS02G10_PAGE_REG8(0x03, 0x0d), 0x26},
> + { OS02G10_PAGE_REG8(0x03, 0x0f), 0x00},
> + { OS02G10_PAGE_REG8(0x02, 0x34), 0xfe},
> + { OS02G10_REG_MIPI_TX_SPEED_CTRL, 0x05},
> +};
> +
> +static const struct os02g10_mode supported_modes[] = {
> + {
> + .width = 1920,
> + .height = 1080,
> + .vts_def = 1246,
> + .hts_def = 1082,
> + .exp_def = 1100,
> + .x_start = 2,
> + .y_start = 6,
> + },
> +};
> +
> +static const s64 link_freq_menu_items[] = {
> + OS02G10_LINK_FREQ_720MHZ,
> +};
> +
> +static const char * const os02g10_test_pattern_menu[] = {
> + "Disabled",
> + "Colorbar",
> +};
> +
> +static int os02g10_page_access(struct os02g10 *os02g10, u32 reg, int *err)
> +{
> + u8 page = (reg & CCI_REG_PRIVATE_MASK) >> CCI_REG_PRIVATE_SHIFT;
> + int ret = 0;
> +
> + if (err && *err)
> + return *err;
> +
> + guard(mutex)(&os02g10->page_lock);
> +
> + /* Perform page access before read/write */
> + if (os02g10->current_page == page)
> + return ret;
> +
> + ret = cci_write(os02g10->cci, OS02G10_REG_PAGE_SELECT, page, err);
> + if (!ret)
> + os02g10->current_page = page;
> +
> + return ret;
> +}
> +
> +static int os02g10_read(struct os02g10 *os02g10, u32 reg, u64 *val, int *err)
> +{
> + u32 addr = reg & ~CCI_REG_PRIVATE_MASK;
> + int ret;
> +
> + ret = os02g10_page_access(os02g10, reg, err);
> + if (ret)
> + return ret;
> +
> + return cci_read(os02g10->cci, addr, val, err);
> +}
> +
> +static int os02g10_write(struct os02g10 *os02g10, u32 reg, u64 val, int *err)
> +{
> + u32 addr = reg & ~CCI_REG_PRIVATE_MASK;
> + int ret;
> +
> + ret = os02g10_page_access(os02g10, reg, err);
> + if (ret)
> + return ret;
> +
> + return cci_write(os02g10->cci, addr, val, err);
> +}
> +
> +static int os02g10_update_bits(struct os02g10 *os02g10, u32 reg, u64 mask,
> + u64 val, int *err)
> +{
> + u32 addr = reg & ~CCI_REG_PRIVATE_MASK;
> + int ret;
> +
> + ret = os02g10_page_access(os02g10, reg, err);
> + if (ret)
> + return ret;
> +
> + return cci_update_bits(os02g10->cci, addr, mask, val, err);
> +}
> +
> +static int os02g10_multi_reg_write(struct os02g10 *os02g10,
> + const struct cci_reg_sequence *regs,
> + unsigned int num_regs, int *err)
> +{
> + unsigned int i;
> + int ret;
> +
> + for (i = 0; i < num_regs; i++) {
> + ret = os02g10_write(os02g10, regs[i].reg, regs[i].val, err);
> + if (ret)
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static inline struct os02g10 *to_os02g10(struct v4l2_subdev *_sd)
> +{
> + return container_of_const(_sd, struct os02g10, sd);
You can call "_sd" "sd".
> +}
> +
> +static u32 os02g10_get_format_code(struct os02g10 *os02g10)
> +{
> + static const u32 codes[2][2] = {
> + { MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SGBRG10_1X10, },
> + { MEDIA_BUS_FMT_SGRBG10_1X10, MEDIA_BUS_FMT_SRGGB10_1X10, },
> + };
> +
Extra newline.
> + u32 code = codes[os02g10->vflip->val][os02g10->hflip->val];
> +
> + return code;
> +}
> +
> +static int os02g10_set_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + struct os02g10 *os02g10 = container_of_const(ctrl->handler,
> + struct os02g10, handler);
> + struct v4l2_subdev_state *state;
> + struct v4l2_mbus_framefmt *fmt;
> + int ret = 0;
> +
> + state = v4l2_subdev_get_locked_active_state(&os02g10->sd);
> + fmt = v4l2_subdev_state_get_format(state, 0);
> +
> + if (ctrl->id == V4L2_CID_VBLANK) {
> + /* Honour the VBLANK limits when setting exposure */
> + s64 max = fmt->height + ctrl->val - OS02G10_EXPOSURE_MARGIN;
> +
> + ret = __v4l2_ctrl_modify_range(os02g10->exposure,
> + os02g10->exposure->minimum, max,
> + os02g10->exposure->step,
> + os02g10->exposure->default_value);
> + if (ret)
> + return ret;
> + }
> +
> + if (pm_runtime_get_if_active(os02g10->dev) == 0)
> + return 0;
> +
> + switch (ctrl->id) {
> + case V4L2_CID_EXPOSURE:
> + os02g10_write(os02g10, OS02G10_REG_LONG_EXPOSURE, ctrl->val, &ret);
> + break;
> + case V4L2_CID_ANALOGUE_GAIN:
> + os02g10_write(os02g10, OS02G10_REG_ANALOG_GAIN, ctrl->val, &ret);
> + break;
> + case V4L2_CID_DIGITAL_GAIN:
> + os02g10_write(os02g10, OS02G10_REG_DIGITAL_GAIN_L,
> + (ctrl->val & 0xff), &ret);
> + os02g10_write(os02g10, OS02G10_REG_DIGITAL_GAIN_H,
> + ((ctrl->val >> 8) & 0x7), &ret);
> + break;
> + case V4L2_CID_VBLANK:
> + u64 vts = ctrl->val + fmt->height;
> +
> + os02g10_update_bits(os02g10, OS02G10_REG_FRAME_TEST_CTRL,
> + OS02G10_FRAME_EXP_SEPERATE_EN,
> + OS02G10_FRAME_EXP_SEPERATE_EN, &ret);
> + os02g10_write(os02g10, OS02G10_REG_FRAME_LENGTH, vts, &ret);
> + break;
> + case V4L2_CID_HFLIP:
> + case V4L2_CID_VFLIP:
> + os02g10_write(os02g10, OS02G10_REG_FLIP_MIRROR,
> + os02g10->hflip->val | os02g10->vflip->val << 1,
> + &ret);
> + os02g10_write(os02g10, OS02G10_REG_SIF_CTRL,
> + OS02G10_ORIENTATION_BAYER_FIX, &ret);
> + break;
> + case V4L2_CID_TEST_PATTERN:
> + os02g10_update_bits(os02g10,
> + OS02G10_REG_FRAME_TEST_CTRL,
> + OS02G10_TEST_PATTERN_ENABLE,
> + ctrl->val ? OS02G10_TEST_PATTERN_ENABLE : 0,
> + &ret);
> + break;
> + default:
> + ret = -EINVAL;
> + break;
> + }
> + os02g10_write(os02g10, OS02G10_REG_FRAME_SYNC, 0x01, &ret);
> +
> + pm_runtime_put(os02g10->dev);
> +
> + return ret;
> +}
> +
> +static const struct v4l2_ctrl_ops os02g10_ctrl_ops = {
> + .s_ctrl = os02g10_set_ctrl,
> +};
> +
> +static int os02g10_init_controls(struct os02g10 *os02g10)
> +{
> + const struct os02g10_mode *mode = &supported_modes[0];
> + u64 vblank_def, hblank_def, exp_max, pixel_rate;
> + struct v4l2_fwnode_device_properties props;
> + struct v4l2_ctrl_handler *ctrl_hdlr;
> + int ret;
> +
> + ctrl_hdlr = &os02g10->handler;
> + v4l2_ctrl_handler_init(ctrl_hdlr, 12);
> +
> + /* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
> + pixel_rate = div_u64(OS02G10_LINK_FREQ_720MHZ * 2 * 2, 10);
> + v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops, V4L2_CID_PIXEL_RATE, 0,
> + pixel_rate, 1, pixel_rate);
> +
> + os02g10->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_LINK_FREQ,
> + os02g10->link_freq_index,
> + 0, link_freq_menu_items);
> + if (os02g10->link_freq)
> + os02g10->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
> +
> + /*
> + * Multiply by 2 to ensure positive hblank.
V4L2 controls can also have negative values, there's no need to multiply
line length in pixels for this reason.
> + * Datasheet does not provide information about the unit of HTS.
> + */
> + hblank_def = (mode->hts_def * 2) - mode->width;
> + os02g10->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_HBLANK, hblank_def, hblank_def,
> + 1, hblank_def);
> + if (os02g10->hblank)
> + os02g10->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
> +
> + vblank_def = mode->vts_def - mode->height;
> + os02g10->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_VBLANK, vblank_def,
> + OS02G10_FRAME_LENGTH_MAX - mode->height,
> + 1, vblank_def);
> +
> + exp_max = mode->vts_def - OS02G10_EXPOSURE_MARGIN;
> + os02g10->exposure =
> + v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_EXPOSURE,
> + OS02G10_EXPOSURE_MIN, exp_max,
> + OS02G10_EXPOSURE_STEP, mode->exp_def);
> +
> + v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_ANALOGUE_GAIN, OS02G10_ANALOG_GAIN_MIN,
> + OS02G10_ANALOG_GAIN_MAX, OS02G10_ANALOG_GAIN_STEP,
> + OS02G10_ANALOG_GAIN_DEFAULT);
> +
> + v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_DIGITAL_GAIN, OS02G10_DIGITAL_GAIN_MIN,
> + OS02G10_DIGITAL_GAIN_MAX, OS02G10_DIGITAL_GAIN_STEP,
> + OS02G10_DIGITAL_GAIN_DEFAULT);
> +
> + os02g10->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_HFLIP, 0, 1, 1, 0);
> + if (os02g10->hflip)
> + os02g10->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
> +
> + os02g10->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_VFLIP, 0, 1, 1, 0);
> + if (os02g10->vflip)
> + os02g10->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
> +
> + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &os02g10_ctrl_ops,
> + V4L2_CID_TEST_PATTERN,
> + ARRAY_SIZE(os02g10_test_pattern_menu) - 1,
> + 0, 0, os02g10_test_pattern_menu);
> + if (ctrl_hdlr->error) {
You can skip this error check; doing this after
v4l2_ctrl_new_fwnode_properties() is enough.
> + ret = ctrl_hdlr->error;
> + dev_err(os02g10->dev, "control init failed (%d)\n", ret);
> + goto err_handler_free;
> + }
> +
> + ret = v4l2_fwnode_device_parse(os02g10->dev, &props);
> + if (ret)
> + goto err_handler_free;
> +
> + ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr,
> + &os02g10_ctrl_ops, &props);
> + if (ret)
> + goto err_handler_free;
> +
> + os02g10->sd.ctrl_handler = ctrl_hdlr;
> +
> + return 0;
> +
> +err_handler_free:
> + v4l2_ctrl_handler_free(ctrl_hdlr);
> +
> + return ret;
> +}
> +
> +static int os02g10_set_framefmt(struct os02g10 *os02g10,
> + struct v4l2_subdev_state *state)
> +{
> + const struct v4l2_mbus_framefmt *format;
> + const struct os02g10_mode *mode;
> + int ret = 0;
> +
> + format = v4l2_subdev_state_get_format(state, 0);
> + mode = v4l2_find_nearest_size(supported_modes,
> + ARRAY_SIZE(supported_modes), width,
> + height, format->width, format->height);
> +
> + os02g10_write(os02g10, OS02G10_REG_V_START, mode->y_start, &ret);
> + os02g10_write(os02g10, OS02G10_REG_V_SIZE, mode->height, &ret);
> + os02g10_write(os02g10, OS02G10_REG_V_SIZE_MIPI, mode->height, &ret);
> + os02g10_write(os02g10, OS02G10_REG_H_START, mode->x_start, &ret);
> + os02g10_write(os02g10, OS02G10_REG_H_SIZE, mode->width, &ret);
> + os02g10_write(os02g10, OS02G10_REG_H_SIZE_MIPI, mode->width, &ret);
> +
> + return ret;
> +}
> +
> +static int os02g10_enable_streams(struct v4l2_subdev *sd,
> + struct v4l2_subdev_state *state, u32 pad,
> + u64 streams_mask)
> +{
> + struct os02g10 *os02g10 = to_os02g10(sd);
> + int ret;
> +
> + ret = pm_runtime_resume_and_get(os02g10->dev);
> + if (ret < 0)
> + return ret;
> +
> + ret = os02g10_multi_reg_write(os02g10, os02g10_common_regs,
> + ARRAY_SIZE(os02g10_common_regs), NULL);
> + if (ret) {
> + dev_err(os02g10->dev, "failed to write common registers\n");
> + goto err_rpm_put;
> + }
> +
> + ret = os02g10_set_framefmt(os02g10, state);
> + if (ret) {
> + dev_err(os02g10->dev, "failed to set frame foramt\n");
> + goto err_rpm_put;
> + }
> +
> + /* Apply customized values from user */
> + ret = __v4l2_ctrl_handler_setup(os02g10->sd.ctrl_handler);
> + if (ret)
> + goto err_rpm_put;
> +
> + ret = os02g10_write(os02g10, OS02G10_REG_STREAM_CTRL,
> + OS02G10_STREAM_CTRL_ON, NULL);
> + if (ret)
> + goto err_rpm_put;
> +
> + /* vflip and hflip cannot change during streaming */
> + __v4l2_ctrl_grab(os02g10->vflip, true);
> + __v4l2_ctrl_grab(os02g10->hflip, true);
> +
> + return 0;
> +
> +err_rpm_put:
> + pm_runtime_put(os02g10->dev);
> + return ret;
> +}
> +
> +static int os02g10_disable_streams(struct v4l2_subdev *sd,
> + struct v4l2_subdev_state *state, u32 pad,
> + u64 streams_mask)
> +{
> + struct os02g10 *os02g10 = to_os02g10(sd);
> + int ret;
> +
> + ret = os02g10_write(os02g10, OS02G10_REG_STREAM_CTRL,
> + OS02G10_STREAM_CTRL_OFF, NULL);
> + if (ret)
> + dev_err(os02g10->dev, "Failed to stop stream\n");
> +
> + __v4l2_ctrl_grab(os02g10->vflip, false);
> + __v4l2_ctrl_grab(os02g10->hflip, false);
> +
> + pm_runtime_put(os02g10->dev);
> +
> + return ret;
> +}
> +
> +static int os02g10_get_selection(struct v4l2_subdev *sd,
> + struct v4l2_subdev_state *sd_state,
> + struct v4l2_subdev_selection *sel)
> +{
> + switch (sel->target) {
> + case V4L2_SEL_TGT_CROP_BOUNDS:
> + case V4L2_SEL_TGT_NATIVE_SIZE:
> + sel->r = os02g10_native_area;
> + return 0;
> + case V4L2_SEL_TGT_CROP:
> + case V4L2_SEL_TGT_CROP_DEFAULT:
> + sel->r = os02g10_active_area;
> + return 0;
> + default:
> + return -EINVAL;
> + }
> +}
> +
> +static int os02g10_enum_mbus_code(struct v4l2_subdev *sd,
> + struct v4l2_subdev_state *sd_state,
> + struct v4l2_subdev_mbus_code_enum *code)
> +{
> + struct os02g10 *os02g10 = to_os02g10(sd);
> +
> + if (code->index)
> + return -EINVAL;
> +
> + code->code = os02g10_get_format_code(os02g10);
> +
> + return 0;
> +}
> +
> +static int os02g10_enum_frame_size(struct v4l2_subdev *sd,
> + struct v4l2_subdev_state *sd_state,
> + struct v4l2_subdev_frame_size_enum *fse)
> +{
> + struct os02g10 *os02g10 = to_os02g10(sd);
> +
> + if (fse->index >= ARRAY_SIZE(supported_modes))
> + return -EINVAL;
> +
> + if (fse->code != os02g10_get_format_code(os02g10))
> + return -EINVAL;
> +
> + fse->min_width = supported_modes[fse->index].width;
> + fse->max_width = fse->min_width;
> + fse->min_height = supported_modes[fse->index].height;
> + fse->max_height = fse->min_height;
> +
> + return 0;
> +}
> +
> +static int os02g10_set_pad_format(struct v4l2_subdev *sd,
> + struct v4l2_subdev_state *sd_state,
> + struct v4l2_subdev_format *fmt)
> +{
> + struct os02g10 *os02g10 = to_os02g10(sd);
> + struct v4l2_mbus_framefmt *format;
> + const struct os02g10_mode *mode;
> + int ret;
> +
> + format = v4l2_subdev_state_get_format(sd_state, 0);
> +
> + mode = v4l2_find_nearest_size(supported_modes,
> + ARRAY_SIZE(supported_modes),
> + width, height,
> + fmt->format.width, fmt->format.height);
> +
> + fmt->format.code = os02g10_get_format_code(os02g10);
> + fmt->format.width = mode->width;
> + fmt->format.height = mode->height;
> + fmt->format.field = V4L2_FIELD_NONE;
> + fmt->format.colorspace = V4L2_COLORSPACE_RAW;
> + fmt->format.quantization = V4L2_QUANTIZATION_FULL_RANGE;
> + fmt->format.xfer_func = V4L2_XFER_FUNC_NONE;
> +
> + *format = fmt->format;
> +
> + if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
> + u32 vblank_def = mode->vts_def - mode->height;
You can declare ret here.
> +
> + ret = __v4l2_ctrl_modify_range(os02g10->vblank, vblank_def,
> + OS02G10_FRAME_LENGTH_MAX -
> + mode->height, 1, vblank_def);
> + if (ret)
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int os02g10_init_state(struct v4l2_subdev *sd,
> + struct v4l2_subdev_state *state)
> +{
> + struct os02g10 *os02g10 = to_os02g10(sd);
> + struct v4l2_subdev_format fmt = {
> + .which = V4L2_SUBDEV_FORMAT_TRY,
> + .format = {
> + .code = os02g10_get_format_code(os02g10),
> + .width = supported_modes[0].width,
> + .height = supported_modes[0].height,
> + },
> + };
> +
> + os02g10_set_pad_format(sd, state, &fmt);
> +
> + return 0;
> +}
> +
> +static const struct v4l2_subdev_video_ops os02g10_video_ops = {
> + .s_stream = v4l2_subdev_s_stream_helper,
> +};
> +
> +static const struct v4l2_subdev_pad_ops os02g10_pad_ops = {
> + .enum_mbus_code = os02g10_enum_mbus_code,
> + .get_fmt = v4l2_subdev_get_fmt,
> + .set_fmt = os02g10_set_pad_format,
> + .get_selection = os02g10_get_selection,
> + .enum_frame_size = os02g10_enum_frame_size,
> + .enable_streams = os02g10_enable_streams,
> + .disable_streams = os02g10_disable_streams,
> +};
> +
> +static const struct v4l2_subdev_ops os02g10_subdev_ops = {
> + .video = &os02g10_video_ops,
> + .pad = &os02g10_pad_ops,
> +};
> +
> +static const struct v4l2_subdev_internal_ops os02g10_internal_ops = {
> + .init_state = os02g10_init_state,
> +};
> +
> +static int os02g10_power_on(struct device *dev)
> +{
> + struct v4l2_subdev *sd = dev_get_drvdata(dev);
> + struct os02g10 *os02g10 = to_os02g10(sd);
> + int ret;
> +
> + ret = regulator_bulk_enable(ARRAY_SIZE(os02g10_supply_name),
> + os02g10->supplies);
> + if (ret) {
> + dev_err(os02g10->dev, "failed to enable regulators\n");
> + return ret;
> + }
> +
> + /* T4: delay from DOVDD stable to MCLK on */
> + fsleep(5 * USEC_PER_MSEC);
> +
> + ret = clk_prepare_enable(os02g10->xclk);
> + if (ret) {
> + dev_err(os02g10->dev, "failed to enable clock\n");
> + goto err_regulator_off;
> + }
> +
> + /* T3: delay from DVDD stable to sensor power up stable */
> + fsleep(5 * USEC_PER_MSEC);
> +
> + gpiod_set_value_cansleep(os02g10->reset_gpio, 0);
> +
> + /* T5: delay from sensor power up stable to SCCB initialization */
> + fsleep(5 * USEC_PER_MSEC);
> +
> + return 0;
> +
> +err_regulator_off:
> + regulator_bulk_disable(ARRAY_SIZE(os02g10_supply_name), os02g10->supplies);
> + return ret;
> +}
> +
> +static int os02g10_power_off(struct device *dev)
> +{
> + struct v4l2_subdev *sd = dev_get_drvdata(dev);
> + struct os02g10 *os02g10 = to_os02g10(sd);
> +
> + clk_disable_unprepare(os02g10->xclk);
> + gpiod_set_value_cansleep(os02g10->reset_gpio, 1);
> + regulator_bulk_disable(ARRAY_SIZE(os02g10_supply_name), os02g10->supplies);
> +
> + return 0;
> +}
> +
> +static int os02g10_identify_module(struct os02g10 *os02g10)
> +{
> + u64 chip_id;
> + int ret;
> +
> + ret = os02g10_read(os02g10, OS02G10_REG_CHIPID, &chip_id, NULL);
> + if (ret)
> + return dev_err_probe(os02g10->dev, ret,
> + "failed to read chip id %x\n",
> + OS02G10_CHIPID);
> +
> + if (chip_id != OS02G10_CHIPID)
> + return dev_err_probe(os02g10->dev, -EIO,
> + "chip id mismatch: %x!=%llx\n",
> + OS02G10_CHIPID, chip_id);
> +
> + return 0;
> +}
> +
> +static int os02g10_parse_endpoint(struct os02g10 *os02g10)
> +{
> + struct v4l2_fwnode_endpoint bus_cfg = {
> + .bus_type = V4L2_MBUS_CSI2_DPHY,
> + };
> + unsigned long link_freq_bitmap;
> + struct fwnode_handle *ep;
> + int ret;
> +
> + ep = fwnode_graph_get_next_endpoint(dev_fwnode(os02g10->dev), NULL);
> + if (!ep)
You can omit this check.
> + return dev_err_probe(os02g10->dev, -ENXIO,
> + "Failed to get next endpoint\n");
> +
> + ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
> + fwnode_handle_put(ep);
> + if (ret)
> + return ret;
> +
> + if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2) {
> + ret = dev_err_probe(os02g10->dev, -EINVAL,
> + "only 2 data lanes are supported\n");
> + goto error_out;
> + }
> +
> + ret = v4l2_link_freq_to_bitmap(os02g10->dev, bus_cfg.link_frequencies,
> + bus_cfg.nr_of_link_frequencies,
> + link_freq_menu_items,
> + ARRAY_SIZE(link_freq_menu_items),
> + &link_freq_bitmap);
> + if (ret) {
> + ret = dev_err_probe(os02g10->dev, -EINVAL,
> + "only 720MHz frequency is available\n");
> + goto error_out;
> + }
> +
> + os02g10->link_freq_index = __ffs(link_freq_bitmap);
Could you rely on the value of the control?
> +
> +error_out:
> + v4l2_fwnode_endpoint_free(&bus_cfg);
> +
> + return ret;
> +};
> +
> +static int os02g10_probe(struct i2c_client *client)
> +{
> + struct os02g10 *os02g10;
> + unsigned int xclk_freq;
> + int ret;
> +
> + os02g10 = devm_kzalloc(&client->dev, sizeof(*os02g10), GFP_KERNEL);
> + if (!os02g10)
> + return -ENOMEM;
> +
> + os02g10->dev = &client->dev;
> +
> + v4l2_i2c_subdev_init(&os02g10->sd, client, &os02g10_subdev_ops);
> + os02g10->sd.internal_ops = &os02g10_internal_ops;
> +
> + os02g10->cci = devm_cci_regmap_init_i2c(client, 8);
> + if (IS_ERR(os02g10->cci))
> + return dev_err_probe(os02g10->dev, PTR_ERR(os02g10->cci),
> + "failed to initialize CCI\n");
> +
> + /* Set Current page to 0 */
> + os02g10->current_page = 0;
> +
> + ret = devm_mutex_init(os02g10->dev, &os02g10->page_lock);
> + if (ret)
> + return dev_err_probe(os02g10->dev, ret,
> + "Failed to initialize lock\n");
> +
> + /* Get system clock (xvclk) */
> + os02g10->xclk = devm_v4l2_sensor_clk_get(os02g10->dev, NULL);
> + if (IS_ERR(os02g10->xclk))
> + return dev_err_probe(os02g10->dev, PTR_ERR(os02g10->xclk),
> + "failed to get xclk\n");
> +
> + xclk_freq = clk_get_rate(os02g10->xclk);
> + if (xclk_freq != OS02G10_XCLK_FREQ)
> + return dev_err_probe(os02g10->dev, -EINVAL,
> + "xclk frequency not supported: %u Hz\n",
> + xclk_freq);
> +
> + for (unsigned int i = 0; i < ARRAY_SIZE(os02g10_supply_name); i++)
> + os02g10->supplies[i].supply = os02g10_supply_name[i];
> +
> + ret = devm_regulator_bulk_get(os02g10->dev,
> + ARRAY_SIZE(os02g10_supply_name),
> + os02g10->supplies);
> + if (ret)
> + return dev_err_probe(os02g10->dev, ret,
> + "failed to get regulators\n");
> +
> + ret = os02g10_parse_endpoint(os02g10);
I'd do this first: in some cases driver probing ends up being done a few
times before it succeeds so getting regulators, GPIOs and clock is better
left after that.
> + if (ret)
> + return dev_err_probe(os02g10->dev, ret,
> + "failed to parse endpoint configuration\n");
> +
> + os02g10->reset_gpio = devm_gpiod_get_optional(os02g10->dev,
> + "reset", GPIOD_OUT_HIGH);
> + if (IS_ERR(os02g10->reset_gpio))
> + return dev_err_probe(os02g10->dev, PTR_ERR(os02g10->reset_gpio),
> + "failed to get reset GPIO\n");
> +
> + ret = os02g10_power_on(os02g10->dev);
> + if (ret)
> + return ret;
> +
> + ret = os02g10_identify_module(os02g10);
> + if (ret)
> + goto error_power_off;
> +
> + ret = os02g10_init_controls(os02g10);
> + if (ret)
> + goto error_power_off;
> +
> + /* Initialize subdev */
> + os02g10->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
> + os02g10->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
> + os02g10->pad.flags = MEDIA_PAD_FL_SOURCE;
> +
> + ret = media_entity_pads_init(&os02g10->sd.entity, 1, &os02g10->pad);
> + if (ret) {
> + dev_err_probe(os02g10->dev, ret, "failed to init entity pads\n");
> + goto error_handler_free;
> + }
> +
> + os02g10->sd.state_lock = os02g10->handler.lock;
> + ret = v4l2_subdev_init_finalize(&os02g10->sd);
> + if (ret) {
> + dev_err_probe(os02g10->dev, ret, "subdev init error\n");
> + goto error_media_entity;
> + }
> +
> + pm_runtime_set_active(os02g10->dev);
> + pm_runtime_enable(os02g10->dev);
> +
> + ret = v4l2_async_register_subdev_sensor(&os02g10->sd);
> + if (ret) {
> + dev_err_probe(os02g10->dev, ret,
> + "failed to register os02g10 sub-device\n");
> + goto error_subdev_cleanup;
> + }
> +
> + pm_runtime_idle(os02g10->dev);
A newline here?
> + return 0;
> +
> +error_subdev_cleanup:
> + v4l2_subdev_cleanup(&os02g10->sd);
> + pm_runtime_disable(os02g10->dev);
> + pm_runtime_set_suspended(os02g10->dev);
> +
> +error_media_entity:
> + media_entity_cleanup(&os02g10->sd.entity);
> +
> +error_handler_free:
> + v4l2_ctrl_handler_free(os02g10->sd.ctrl_handler);
> +
> +error_power_off:
> + os02g10_power_off(os02g10->dev);
> +
> + return ret;
> +}
> +
> +static void os02g10_remove(struct i2c_client *client)
> +{
> + struct v4l2_subdev *sd = i2c_get_clientdata(client);
> + struct os02g10 *os02g10 = to_os02g10(sd);
> +
> + v4l2_async_unregister_subdev(sd);
> + v4l2_subdev_cleanup(&os02g10->sd);
> + media_entity_cleanup(&sd->entity);
> + v4l2_ctrl_handler_free(os02g10->sd.ctrl_handler);
> +
> + pm_runtime_disable(&client->dev);
> + if (!pm_runtime_status_suspended(&client->dev)) {
> + os02g10_power_off(&client->dev);
> + pm_runtime_set_suspended(&client->dev);
> + }
> +}
> +
> +static DEFINE_RUNTIME_DEV_PM_OPS(os02g10_pm_ops,
> + os02g10_power_off, os02g10_power_on, NULL);
> +
> +static const struct of_device_id os02g10_id[] = {
> + { .compatible = "ovti,os02g10" },
> + { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, os02g10_id);
> +
> +static struct i2c_driver os02g10_driver = {
> + .driver = {
> + .name = "os02g10",
> + .pm = pm_ptr(&os02g10_pm_ops),
> + .of_match_table = os02g10_id,
> + },
> + .probe = os02g10_probe,
> + .remove = os02g10_remove,
> +};
> +module_i2c_driver(os02g10_driver);
> +
> +MODULE_DESCRIPTION("OS02G10 Camera Sensor Driver");
> +MODULE_AUTHOR("Tarang Raval <tarang.raval@siliconsignals.io>");
> +MODULE_AUTHOR("Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>");
> +MODULE_LICENSE("GPL");
--
Kind regards,
Sakari Ailus
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 9:57 ` Laurent Pinchart
@ 2026-04-14 10:06 ` sakari.ailus
2026-04-14 10:12 ` Laurent Pinchart
2026-04-14 10:19 ` Tarang Raval
1 sibling, 1 reply; 15+ messages in thread
From: sakari.ailus @ 2026-04-14 10:06 UTC (permalink / raw)
To: Laurent Pinchart
Cc: Elgin Perumbilly, Tarang Raval, Mauro Carvalho Chehab,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Hans Verkuil,
Hans de Goede, Vladimir Zapolskiy, Mehdi Djait, Benjamin Mugnier,
Sylvain Petinot, Hardevsinh Palaniya, Jingjing Xiong,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Hi Laurent,
On Tue, Apr 14, 2026 at 12:57:27PM +0300, Laurent Pinchart wrote:
> On Tue, Apr 14, 2026 at 09:43:32AM +0000, Elgin Perumbilly wrote:
> > Hi Laurent,
> >
> > > I sent a review comment on v1.
> > >
> > > On Tue, Apr 14, 2026 at 02:19:45PM +0530, Elgin Perumbilly wrote:
> > > > Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
> > > >
> > > > The Omnivision os02g10 is a CMOS image sensor with an active array size of
> > > > 1920 x 1080.
> > > >
> > > > The following features are supported:
> > > > - Manual exposure an gain control support
> > > > - vblank/hblank control support
> > > > - vflip/hflip control support
> > > > - Test pattern control support
> > > > - Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
> > > >
> > > > Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> > > > Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
> > > > ---
> > > > MAINTAINERS | 1 +
> > > > drivers/media/i2c/Kconfig | 10 +
> > > > drivers/media/i2c/Makefile | 1 +
> > > > drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
> > > > 4 files changed, 1051 insertions(+)
> > > > create mode 100644 drivers/media/i2c/os02g10.c
> >
> > I have added a new function, os02g10_set_framefmt, which dynamically sets
> > the mode register.
> >
> > Please let me know if I have missed anything or if further changes are
> > needed.
>
> You also need to drop the supported_modes array, and implement support
> for .set_selection().
I don't think we have a very well established behaviour for set_selections
on sensors before the common raw sensor model, do we? I guess it can be the
same as get_selections, though.
Hopefully we can merge the metadata series soon...
--
Regards,
Sakari Ailus
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 10:06 ` sakari.ailus
@ 2026-04-14 10:12 ` Laurent Pinchart
0 siblings, 0 replies; 15+ messages in thread
From: Laurent Pinchart @ 2026-04-14 10:12 UTC (permalink / raw)
To: sakari.ailus@linux.intel.com
Cc: Elgin Perumbilly, Tarang Raval, Mauro Carvalho Chehab,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Hans Verkuil,
Hans de Goede, Vladimir Zapolskiy, Mehdi Djait, Benjamin Mugnier,
Sylvain Petinot, Hardevsinh Palaniya, Jingjing Xiong,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
On Tue, Apr 14, 2026 at 01:06:37PM +0300, Sakari Ailus wrote:
> On Tue, Apr 14, 2026 at 12:57:27PM +0300, Laurent Pinchart wrote:
> > On Tue, Apr 14, 2026 at 09:43:32AM +0000, Elgin Perumbilly wrote:
> > > Hi Laurent,
> > >
> > > > I sent a review comment on v1.
> > > >
> > > > On Tue, Apr 14, 2026 at 02:19:45PM +0530, Elgin Perumbilly wrote:
> > > > > Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
> > > > >
> > > > > The Omnivision os02g10 is a CMOS image sensor with an active array size of
> > > > > 1920 x 1080.
> > > > >
> > > > > The following features are supported:
> > > > > - Manual exposure an gain control support
> > > > > - vblank/hblank control support
> > > > > - vflip/hflip control support
> > > > > - Test pattern control support
> > > > > - Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
> > > > >
> > > > > Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> > > > > Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
> > > > > ---
> > > > > MAINTAINERS | 1 +
> > > > > drivers/media/i2c/Kconfig | 10 +
> > > > > drivers/media/i2c/Makefile | 1 +
> > > > > drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
> > > > > 4 files changed, 1051 insertions(+)
> > > > > create mode 100644 drivers/media/i2c/os02g10.c
> > >
> > > I have added a new function, os02g10_set_framefmt, which dynamically sets
> > > the mode register.
> > >
> > > Please let me know if I have missed anything or if further changes are
> > > needed.
> >
> > You also need to drop the supported_modes array, and implement support
> > for .set_selection().
>
> I don't think we have a very well established behaviour for set_selections
> on sensors before the common raw sensor model, do we? I guess it can be the
> same as get_selections, though.
>
> Hopefully we can merge the metadata series soon...
I've bumped that high on my list of priority tasks.
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 9:57 ` Laurent Pinchart
2026-04-14 10:06 ` sakari.ailus
@ 2026-04-14 10:19 ` Tarang Raval
2026-04-14 10:33 ` Laurent Pinchart
1 sibling, 1 reply; 15+ messages in thread
From: Tarang Raval @ 2026-04-14 10:19 UTC (permalink / raw)
To: Laurent Pinchart
Cc: Elgin Perumbilly, sakari.ailus@linux.intel.com,
Mauro Carvalho Chehab, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Hans Verkuil, Hans de Goede, Vladimir Zapolskiy,
Mehdi Djait, Benjamin Mugnier, Sylvain Petinot,
Hardevsinh Palaniya, Jingjing Xiong, linux-media@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Hi Laurent,
> On Tue, Apr 14, 2026 at 09:43:32AM +0000, Elgin Perumbilly wrote:
> > Hi Laurent,
> >
> > > I sent a review comment on v1.
> > >
> > > On Tue, Apr 14, 2026 at 02:19:45PM +0530, Elgin Perumbilly wrote:
> > > > Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
> > > >
> > > > The Omnivision os02g10 is a CMOS image sensor with an active array size of
> > > > 1920 x 1080.
> > > >
> > > > The following features are supported:
> > > > - Manual exposure an gain control support
> > > > - vblank/hblank control support
> > > > - vflip/hflip control support
> > > > - Test pattern control support
> > > > - Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
> > > >
> > > > Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> > > > Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
> > > > ---
> > > > MAINTAINERS | 1 +
> > > > drivers/media/i2c/Kconfig | 10 +
> > > > drivers/media/i2c/Makefile | 1 +
> > > > drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
> > > > 4 files changed, 1051 insertions(+)
> > > > create mode 100644 drivers/media/i2c/os02g10.c
> >
> > I have added a new function, os02g10_set_framefmt, which dynamically sets
> > the mode register.
> >
> > Please let me know if I have missed anything or if further changes are
> > needed.
>
> You also need to drop the supported_modes array, and implement support
> for .set_selection().
Are you suggesting that we should drop the array below?
static const struct os02g10_mode supported_modes[] = {
{
.width = 1920,
.height = 1080,
.vts_def = 1246,
.hts_def = 1082,
.exp_def = 1100,
.x_start = 2,
.y_start = 6,
},
};
If we remove this, how would we provide mode-specific parameters such as VTS?
Best Regards,
Tarang
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver
2026-04-14 10:19 ` Tarang Raval
@ 2026-04-14 10:33 ` Laurent Pinchart
0 siblings, 0 replies; 15+ messages in thread
From: Laurent Pinchart @ 2026-04-14 10:33 UTC (permalink / raw)
To: Tarang Raval
Cc: Elgin Perumbilly, sakari.ailus@linux.intel.com,
Mauro Carvalho Chehab, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Hans Verkuil, Hans de Goede, Vladimir Zapolskiy,
Mehdi Djait, Benjamin Mugnier, Sylvain Petinot,
Hardevsinh Palaniya, linux-media@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
On Tue, Apr 14, 2026 at 10:19:23AM +0000, Tarang Raval wrote:
> > On Tue, Apr 14, 2026 at 09:43:32AM +0000, Elgin Perumbilly wrote:
> > > > On Tue, Apr 14, 2026 at 02:19:45PM +0530, Elgin Perumbilly wrote:
> > > > > Add a v4l2 subdevice driver for the Omnivision os02g10 sensor.
> > > > >
> > > > > The Omnivision os02g10 is a CMOS image sensor with an active array size of
> > > > > 1920 x 1080.
> > > > >
> > > > > The following features are supported:
> > > > > - Manual exposure an gain control support
> > > > > - vblank/hblank control support
> > > > > - vflip/hflip control support
> > > > > - Test pattern control support
> > > > > - Supported resolution: 1920 x 1080 @ 30fps (SBGGR10)
> > > > >
> > > > > Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> > > > > Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
> > > > > ---
> > > > > MAINTAINERS | 1 +
> > > > > drivers/media/i2c/Kconfig | 10 +
> > > > > drivers/media/i2c/Makefile | 1 +
> > > > > drivers/media/i2c/os02g10.c | 1039 +++++++++++++++++++++++++++++++++++
> > > > > 4 files changed, 1051 insertions(+)
> > > > > create mode 100644 drivers/media/i2c/os02g10.c
> > >
> > > I have added a new function, os02g10_set_framefmt, which dynamically sets
> > > the mode register.
> > >
> > > Please let me know if I have missed anything or if further changes are
> > > needed.
> >
> > You also need to drop the supported_modes array, and implement support
> > for .set_selection().
>
> Are you suggesting that we should drop the array below?
Correct.
> static const struct os02g10_mode supported_modes[] = {
> {
> .width = 1920,
> .height = 1080,
> .vts_def = 1246,
> .hts_def = 1082,
> .exp_def = 1100,
> .x_start = 2,
> .y_start = 6,
> },
> };
>
> If we remove this, how would we provide mode-specific parameters such as VTS?
Those should be computed by the driver based on the format and crop
rectangle configured by userspace.
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor
2026-04-14 8:49 ` [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor Elgin Perumbilly
@ 2026-04-15 7:54 ` Krzysztof Kozlowski
2026-04-15 8:57 ` Elgin Perumbilly
2026-04-15 9:03 ` Krzysztof Kozlowski
1 sibling, 1 reply; 15+ messages in thread
From: Krzysztof Kozlowski @ 2026-04-15 7:54 UTC (permalink / raw)
To: Elgin Perumbilly
Cc: sakari.ailus, tarang.raval, Mauro Carvalho Chehab, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Hans Verkuil, Hans de Goede,
Vladimir Zapolskiy, Mehdi Djait, Laurent Pinchart,
Benjamin Mugnier, Sylvain Petinot, Hardevsinh Palaniya,
Heimir Thor Sverrisson, Jingjing Xiong, Himanshu Bhavani,
Svyatoslav Ryhel, linux-media, devicetree, linux-kernel
On Tue, Apr 14, 2026 at 02:19:44PM +0530, Elgin Perumbilly wrote:
> Add bindings for Omnivision OS02G10 sensor.
>
> Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
> ---
> .../bindings/media/i2c/ovti,os02g10.yaml | 96 +++++++++++++++++++
> MAINTAINERS | 7 ++
> 2 files changed, 103 insertions(+)
Your changelog in cover letters says nothing changed here, so same
comments as v1. Please go back to v1 and read the feedback carefully.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor
2026-04-15 7:54 ` Krzysztof Kozlowski
@ 2026-04-15 8:57 ` Elgin Perumbilly
0 siblings, 0 replies; 15+ messages in thread
From: Elgin Perumbilly @ 2026-04-15 8:57 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: sakari.ailus@linux.intel.com, Tarang Raval, Mauro Carvalho Chehab,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Hans Verkuil,
Hans de Goede, Vladimir Zapolskiy, Mehdi Djait, Laurent Pinchart,
Benjamin Mugnier, Sylvain Petinot, Hardevsinh Palaniya,
Heimir Thor Sverrisson, Jingjing Xiong, Himanshu Bhavani,
Svyatoslav Ryhel, linux-media@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Hi Krzysztof,
>On Tue, Apr 14, 2026 at 02:19:44PM +0530, Elgin Perumbilly wrote:
>> Add bindings for Omnivision OS02G10 sensor.
>>
>> Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
>> ---
>> .../bindings/media/i2c/ovti,os02g10.yaml | 96 +++++++++++++++++++
>> MAINTAINERS | 7 ++
>> 2 files changed, 103 insertions(+)
>
>Your changelog in cover letters says nothing changed here, so same
>comments as v1. Please go back to v1 and read the feedback carefully.
>
>Best regards,
>Krzysztof
I made the changes but forgot to include them in the changelog.
Changes made:
- Corrected $id to ovti,os02g10.yaml
- Fixed data-lanes property structure to use proper items format
Best regards,
Elgin
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor
2026-04-14 8:49 ` [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor Elgin Perumbilly
2026-04-15 7:54 ` Krzysztof Kozlowski
@ 2026-04-15 9:03 ` Krzysztof Kozlowski
2026-04-15 9:49 ` Sakari Ailus
1 sibling, 1 reply; 15+ messages in thread
From: Krzysztof Kozlowski @ 2026-04-15 9:03 UTC (permalink / raw)
To: Elgin Perumbilly, sakari.ailus, tarang.raval
Cc: Mauro Carvalho Chehab, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Hans Verkuil, Hans de Goede, Vladimir Zapolskiy,
Mehdi Djait, Laurent Pinchart, Benjamin Mugnier, Sylvain Petinot,
Hardevsinh Palaniya, Heimir Thor Sverrisson, Jingjing Xiong,
Himanshu Bhavani, Svyatoslav Ryhel, linux-media, devicetree,
linux-kernel
On 14/04/2026 10:49, Elgin Perumbilly wrote:
> +
> + properties:
> + endpoint:
> + $ref: /schemas/media/video-interfaces.yaml#
> + unevaluatedProperties: false
> +
> + properties:
> + data-lanes:
> + items:
> + - const: 1
> + - const: 2
This looks completely fixed per model. If device cannot work with four
lanes, then you simply don't need this property. It's deducible from the
compatible.
> + required:
> + - data-lanes
> + - link-frequencies
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - avdd-supply
> + - dovdd-supply
> + - dvdd-supply
> + - port
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor
2026-04-15 9:03 ` Krzysztof Kozlowski
@ 2026-04-15 9:49 ` Sakari Ailus
0 siblings, 0 replies; 15+ messages in thread
From: Sakari Ailus @ 2026-04-15 9:49 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Elgin Perumbilly, tarang.raval, Mauro Carvalho Chehab,
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Hans Verkuil,
Hans de Goede, Vladimir Zapolskiy, Mehdi Djait, Laurent Pinchart,
Benjamin Mugnier, Sylvain Petinot, Hardevsinh Palaniya,
Heimir Thor Sverrisson, Jingjing Xiong, Himanshu Bhavani,
Svyatoslav Ryhel, linux-media, devicetree, linux-kernel
Hi Krzysztof,
On Wed, Apr 15, 2026 at 11:03:51AM +0200, Krzysztof Kozlowski wrote:
> On 14/04/2026 10:49, Elgin Perumbilly wrote:
> > +
> > + properties:
> > + endpoint:
> > + $ref: /schemas/media/video-interfaces.yaml#
> > + unevaluatedProperties: false
> > +
> > + properties:
> > + data-lanes:
> > + items:
> > + - const: 1
> > + - const: 2
>
> This looks completely fixed per model. If device cannot work with four
> lanes, then you simply don't need this property. It's deducible from the
> compatible.
Presumably one lane is enough for the sensor even if the driver only
supports two lane operation.
--
Regards,
Sakari Ailus
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2026-04-15 9:49 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-04-14 8:49 [PATCH v2 0/2] media: i2c: Add os02g10 camera sensor driver Elgin Perumbilly
2026-04-14 8:49 ` [PATCH v2 1/2] dt-bindings: media: i2c: Add os02g10 sensor Elgin Perumbilly
2026-04-15 7:54 ` Krzysztof Kozlowski
2026-04-15 8:57 ` Elgin Perumbilly
2026-04-15 9:03 ` Krzysztof Kozlowski
2026-04-15 9:49 ` Sakari Ailus
2026-04-14 8:49 ` [PATCH v2 2/2] media: i2c: add os02g10 image sensor driver Elgin Perumbilly
2026-04-14 9:27 ` Laurent Pinchart
2026-04-14 9:43 ` Elgin Perumbilly
2026-04-14 9:57 ` Laurent Pinchart
2026-04-14 10:06 ` sakari.ailus
2026-04-14 10:12 ` Laurent Pinchart
2026-04-14 10:19 ` Tarang Raval
2026-04-14 10:33 ` Laurent Pinchart
2026-04-14 9:57 ` Sakari Ailus
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