[PATCH] arm64: dts: imx8mp: add imx8mp-venice-gw74xx-imx219 overlay for rpi v2 camera

[Fabio Estevam]

On Tue, Jul 11, 2023 at 7:15 PM Tim Harvey <tharvey at gateworks.com> wrote:
>
> Add support for the RaspberryPi Camera v2 which is an IMX219 8MP module:
>  - https://datasheets.raspberrypi.com/camera/camera-v2-schematics.pdf
>  - has its own on-board 24MHz osc so no clock required from baseboard
>  - pin 11 enables 1.8V and 2.8V LDO which is connected to
>    GW74xx MIPI_GPIO4 (IMX8MP GPIO1_IO4) so we use this as a gpio
>
> Support is added via a device-tree overlay.
>
> The IMX219 supports RAW8/RAW10 image formats.
>
> Example configuration:
> media-ctl -l "'imx219 3-0010':0->'csis-32e40000.csi':0[1]"
> media-ctl -v -V "'imx219 3-0010':0 [fmt:SRGGB8/640x480 field:none]"
> media-ctl -v -V "'crossbar':0 [fmt:SRGGB8/640x480 field:none]"
> media-ctl -v -V "'mxc_isi.0':0 [fmt:SRGGB8/640x480 field:none]"
> v4l2-ctl --set-fmt-video=width=640,height=480,pixelformat=RGGB
> v4l2-ctl --stream-mmap --stream-to=frame.raw --stream-count=1
> convert -size 640x480 -depth 8 gray:frame.raw frame.png
> gst-launch-1.0 v4l2src ! \
>   video/x-bayer,format=rggb,width=640,height=480,framerate=10/1 ! \
>   bayer2rgb ! fbdevsink
>
> Signed-off-by: Tim Harvey <tharvey at gateworks.com>

Reviewed-by: Fabio Estevam <festevam at gmail.com>