media: i2c: Add driver of Arducam 64MP camera

Add a driver for the Arducam 64MP camera sensor.
Whilst the sensor supports 2 or 4 CSI2 data lanes, this driver
currently only supports 2 lanes.

The following Bayer modes are currently available:

9152x6944 10-bit @ 2.7fps
4624x3472 10-bit (binned) @ 10fps
3840x2160 10-bit (cropped/binned) @ 20fps
2312x1736 10-bit (binned) @ 30fps
1920x1080 10-bit (cropped/binned) @ 60fps
1280x720 10-bit (cropped/binned) @ 120fps

Signed-off-by: Lee Jackson <info@arducam.com>

media: i2c: arducam_64mp: Advertise embedded data node on media pad 1

This commit updates the arducam_64mp driver to adverise support for
embedded data streams.

The arducam_64mp sensor subdevice overloads the media pad to differentiate
between image stream (pad 0) and embedded data stream (pad 1) when
performing the v4l2_subdev_pad_ops functions.

Signed-off-by: Lee Jackson <info@arducam.com>

media: i2c: arducam_64mp: Modify the line length of 1280x720 resolution

Arducam 64MP has specific requirements for the line length, and if these
conditions are not met, the camera will not function properly. Under the
previous configuration, once a stream off operation is performed, the
camera will not output any data, even if a stream on operation is
performed. This prevents us from switching from 1280x720 to another
resolution.

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>

media: i2c: arducam_64mp: Add 8000x6000 resolution

Added 8000x6000 10-bit (cropped) @ 3fps mode for Arducam 64MP

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>

media: i2c: arducam_64mp: Add PDAF support

Enable PDAF output for all modes, and also need to modify Embedded Line
Width to 11560 * 3 (two lines of Embedded Data + one line of PDAF).

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>

drivers: media: arducam_64mp: Add V4L2_CID_LINK_FREQ control

Add V4L2_CID_LINK_FREQ as a read-only control with a value of 456 Mhz.
This will be used by the CFE driver to corretly setup the DPHY timing
parameters in the CSI-2 block.

Signed-off-by: Lee Jackson <lee.jackson@arducam.com>

media: i2c: Modify the datatype of PDAF data in the arducam_64mp driver

Modify the PDAF Datatype of the Arducam 64MP camera from 0x30 to 0x12
so that the Raspberry Pi 5 cfe driver can receive PDAF data.

Signed-off-by: Lee Jackson <info@arducam.com>

drivers/media/i2c/Kconfig

@@ -110,6 +110,17 @@ config VIDEO_GC2145
 	  To compile this driver as a module, choose M here: the
 	  module will be called gc2145.
 
+config VIDEO_ARDUCAM_64MP
+	tristate "Arducam 64MP sensor support"
+	depends on I2C && VIDEO_DEV
+	select VIDEO_V4L2_SUBDEV_API
+	help
+	  This is a Video4Linux2 sensor driver for the Arducam
+	  64MP camera.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called arducam_64mp.
+
 config VIDEO_ARDUCAM_PIVARIETY
 	tristate "Arducam Pivariety sensor support"
 	depends on I2C && VIDEO_DEV

drivers/media/i2c/Makefile

@@ -21,6 +21,7 @@ obj-$(CONFIG_VIDEO_AK881X) += ak881x.o
 obj-$(CONFIG_VIDEO_ALVIUM_CSI2) += alvium-csi2.o
 obj-$(CONFIG_VIDEO_APTINA_PLL) += aptina-pll.o
 obj-$(CONFIG_VIDEO_AR0521) += ar0521.o
+obj-$(CONFIG_VIDEO_ARDUCAM_64MP) += arducam_64mp.o
 obj-$(CONFIG_VIDEO_ARDUCAM_PIVARIETY) += arducam-pivariety.o
 obj-$(CONFIG_VIDEO_BT819) += bt819.o
 obj-$(CONFIG_VIDEO_BT856) += bt856.o