media: i2c: add ov9281 driver.

Change-Id: I7b77250bbc56d2f861450cf77271ad15f9b88ab1
Signed-off-by: Zefa Chen <[email protected]>

media: i2c: ov9281: fix mclk issue when probe multiple camera.

Takes the ov9281 part only from the Rockchip's patch.

Change-Id: I30e833baf2c1bb07d6d87ddb3b00759ab45a90e4
Signed-off-by: Zefa Chen <[email protected]>

media: i2c: ov9281: add enum_frame_interval function for iq tool 2.2 and hal3

Adds the ov9281 parts of the Rockchip patch adding enum_frame_interval to
a large number of drivers.

Change-Id: I03344cd6cf278dd7c18fce8e97479089ef185a5c
Signed-off-by: Zefa Chen <[email protected]>

media: i2c: ov9281: Fixup for recent kernel releases, and remove custom code

The Rockchip driver was based on a 4.4 kernel, and had several custom
Rockchip parts.

Update to 5.4 kernel APIs, with the relevant controls required by
libcamera, and remove custom Rockchip parts.

Signed-off-by: Dave Stevenson <[email protected]>

media: i2c: ov9281: Read chip ID via 2 reads

Vision Components have made an OV9281 module which blocks reading
back the majority of registers to comply with NDAs, and in doing
so doesn't allow auto-increment register reading as used when
reading the chip ID.

Use two reads and manually combine the results.

Signed-off-by: Dave Stevenson <[email protected]>

media: i2c: ov9281: Add support for 8 bit readout

The sensor supports 8 bit mode as well as 10bit, so add the
relevant code to allow selection of this.

Signed-off-by: Dave Stevenson <[email protected]>

media: ov9281: Add 1280x720 and 640x480 modes

Breaks out common register set and adds the different registers
for 1280x720 (cropped) and 640x480 (skipped) modes

Signed-off-by: Dave Stevenson <[email protected]>

Fixed picture line bug in all ov9281 modes

Signed-off-by: Mathias Anhalt <[email protected]>

Added hflip and vflip controls to ov9281

Signed-off-by: Mathias Anhalt <[email protected]>

media: i2c: ov9281: Remove override of subdev name

From the original Rockchip driver, the subdev was renamed
from the default to being "mov9281 <dev_name>" whereas the
default would have been "ov9281 <dev_name>".

Remove the override to drop back to the default rather than
a vendor custom string.

Signed-off-by: Dave Stevenson <[email protected]>

media: v4l2-subdev: add subdev-wide state struct

Signed-off-by: Dom Cobley <[email protected]>

media: i2c: ov9281: Add fwnode properties controls

Add call to v4l2_ctrl_new_fwnode_properties to read and
create the fwnode based controls.

Signed-off-by: Dave Stevenson <[email protected]>

media: i2c: ov9281: Sensor should report RAW color space

Tested on Raspberry Pi running libcamera.

Signed-off-by: David Plowman <[email protected]>

Author: Zefa Chen

drivers/media/i2c/Kconfig

@@ -1390,6 +1390,17 @@ config VIDEO_TW2804
 	  To compile this driver as a module, choose M here: the
 	  module will be called tw2804.
 
+config VIDEO_OV9281
+	tristate "OmniVision OV9281 sensor support"
+	depends on I2C && VIDEO_DEV
+	depends on MEDIA_CAMERA_SUPPORT
+	help
+	  This is a Video4Linux2 sensor-level driver for the OmniVision
+	  OV9281 camera.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ov9281.
+
 config VIDEO_TW9903
 	tristate "Techwell TW9903 video decoder"
 	depends on VIDEO_DEV && I2C

drivers/media/i2c/Makefile

@@ -101,6 +101,7 @@ obj-$(CONFIG_VIDEO_OV772X) += ov772x.o
 obj-$(CONFIG_VIDEO_OV7740) += ov7740.o
 obj-$(CONFIG_VIDEO_OV8856) += ov8856.o
 obj-$(CONFIG_VIDEO_OV8865) += ov8865.o
+obj-$(CONFIG_VIDEO_OV9281) += ov9281.o
 obj-$(CONFIG_VIDEO_OV9282) += ov9282.o
 obj-$(CONFIG_VIDEO_OV9640) += ov9640.o
 obj-$(CONFIG_VIDEO_OV9650) += ov9650.o