Hi Marek,
On Mon, May 20, 2019 at 10:18:11PM +0200, Marek Vasut wrote:
> Add bindings for the Intersil ISL7998x BT656-to-MIPI-CSI2 decoder.
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
> Cc: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> To: linux-media@xxxxxxxxxxxxxxx
> ---
> .../bindings/media/i2c/isl7998x.txt | 37 +++++++++++++++++++
> 1 file changed, 37 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/i2c/isl7998x.txt
>
> diff --git a/Documentation/devicetree/bindings/media/i2c/isl7998x.txt b/Documentation/devicetree/bindings/media/i2c/isl7998x.txt
> new file mode 100644
> index 000000000000..c21703983360
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/isl7998x.txt
> @@ -0,0 +1,37 @@
> +Intersil ISL7998x BT656-to-MIPI-CSI2 decoder
> +
> +The Intersil ISL7998x is a BT656-to-MIPI-CSI decoder which, capable of
> +receiving up to four analog stream and multiplexing them into up to four
> +MIPI CSI2 virtual channels, using one MIPI clock lane and 1/2 data lanes.
> +
> +Required Properties:
> +- compatible: value should be "isil,isl79987"
> +- pd-gpios: a GPIO spec for the Power Down pin (active high)
> +
> +Option Properties:
> +- isil,num-inputs: Number of connected inputs (1, 2 or 4)
The presence of ports describing connected Bt.656 inputs tells this.
> +
> +For further reading on port node refer to
> +Documentation/devicetree/bindings/media/video-interfaces.txt.
Which endpoint properties are relevant for the endpoint(s) in the CSI-2 port?
How about the ports describing the Bt.656 interfaces? You should have
those, too...
> +
> +Example:
> +
> + i2c_master {
> + isl7998x_mipi@44 {
> + compatible = "isil,isl79987";
> + reg = <0x44>;
> + isil,num-inputs = <4>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_videoadc>;
> + pd-gpios = <&gpio3 27 GPIO_ACTIVE_HIGH>;
> + status = "okay";
> +
> + port {
> + isl79987_to_mipi_csi2: endpoint {
> + remote-endpoint = <&mipi_csi2_in>;
> + clock-lanes = <0>;
> + data-lanes = <1 2>;
> + };
> + };
> + };
> + };
>
--
Regards,
Sakari Ailus
sakari.ailus@xxxxxxxxxxxxxxx
