[PATCH v5 1/2] devicetree/bindings: display: Add document for rockchip RGB output

[PATCH v5 1/2] devicetree/bindings: display: Add document for rockchip RGB output

[Sandy Huang]

This path add support rv1108 and px30 rgb output interface driver.

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1509522765-118759-1-git-send-email-hjc@rock-chips.com
---
 .../bindings/display/rockchip/rockchip-rgb.txt     | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
new file mode 100644
index 0000000..1f4909c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
@@ -0,0 +1,70 @@
+Rockchip RV1108 RGB interface
+================================
+
+Required properties:
+- compatible: matching the soc type:
+	- "rockchip,px30-rgb";
+	- "rockchip,rv1108-rgb";
+
+Optional properties:
+- pinctrl-names: should be a "lcdc" entry or a "default" entry.
+- pinctrl-0: pin control group to be used for this interface.
+
+The rgb has two video ports described by:
+	Documentation/devicetree/bindings/media/video-interfaces.txt
+Their connections are modeled using the OF graph bindings specified in
+	Documentation/devicetree/bindings/graph.txt.
+
+- video port 0 for the VOP input, the remote endpoint maybe vopb/vopl/vop
+- video port 1 for either a panel or subsequent encoder
+
+the panel described by:
+	Documentation/devicetree/bindings/display/panel/simple-panel.txt
+Panel other required properties:
+- ports for remote rgb output.
+
+Example:
+
+panel: panel {
+	compatible = "auo,b101ean01";
+	enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
+
+	ports {
+		panel_in_rgb: endpoint {
+			remote-endpoint = <&rgb_out_panel>;
+		};
+	};
+};
+
+For Rockchip RV1108:
+
+	rgb: rgb {
+		compatible = "rockchip,rv1108-rgb";
+		pinctrl-names = "lcdc";
+		pinctrl-0 = <&lcdc_ctl>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			rgb_in: port@0 {
+				reg = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				rgb_in_vop: endpoint {
+					remote-endpoint = <&vop_out_rgb>;
+				};
+			};
+
+			rgb_out: port@1 {
+				reg = <1>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				rgb_out_panel: endpoint {
+					remote-endpoint = <&panel_in_rgb>;
+				};
+			};
+		};
+	};
-- 
2.7.4


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Re: [PATCH v5 1/2] devicetree/bindings: display: Add document for rockchip RGB output

[Michal Vokáč]

On 28.8.2018 10:12, Sandy Huang wrote:
> This path add support rv1108 and px30 rgb output interface driver.

Hi Sandy,
Seems like you forgot to address Rob's comment regarding the "driver" word.
Also fix the typo: s/path/patch
The subject could be improved as well: s/devicetree\/bindings/dt-bindings

Best regards, Michal
> 
> Signed-off-by: Sandy Huang <hjc@rock-chips.com>
> Link: https://patchwork.freedesktop.org/patch/msgid/1509522765-118759-1-git-send-email-hjc@rock-chips.com
> ---
>   .../bindings/display/rockchip/rockchip-rgb.txt     | 70 ++++++++++++++++++++++
>   1 file changed, 70 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
> new file mode 100644
> index 0000000..1f4909c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
> @@ -0,0 +1,70 @@
> +Rockchip RV1108 RGB interface
> +================================
> +
> +Required properties:
> +- compatible: matching the soc type:
> +	- "rockchip,px30-rgb";
> +	- "rockchip,rv1108-rgb";
> +
> +Optional properties:
> +- pinctrl-names: should be a "lcdc" entry or a "default" entry.
> +- pinctrl-0: pin control group to be used for this interface.
> +
> +The rgb has two video ports described by:
> +	Documentation/devicetree/bindings/media/video-interfaces.txt
> +Their connections are modeled using the OF graph bindings specified in
> +	Documentation/devicetree/bindings/graph.txt.
> +
> +- video port 0 for the VOP input, the remote endpoint maybe vopb/vopl/vop
> +- video port 1 for either a panel or subsequent encoder
> +
> +the panel described by:
> +	Documentation/devicetree/bindings/display/panel/simple-panel.txt
> +Panel other required properties:
> +- ports for remote rgb output.
> +
> +Example:
> +
> +panel: panel {
> +	compatible = "auo,b101ean01";
> +	enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
> +
> +	ports {
> +		panel_in_rgb: endpoint {
> +			remote-endpoint = <&rgb_out_panel>;
> +		};
> +	};
> +};
> +
> +For Rockchip RV1108:
> +
> +	rgb: rgb {
> +		compatible = "rockchip,rv1108-rgb";
> +		pinctrl-names = "lcdc";
> +		pinctrl-0 = <&lcdc_ctl>;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			rgb_in: port@0 {
> +				reg = <0>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				rgb_in_vop: endpoint {
> +					remote-endpoint = <&vop_out_rgb>;
> +				};
> +			};
> +
> +			rgb_out: port@1 {
> +				reg = <1>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				rgb_out_panel: endpoint {
> +					remote-endpoint = <&panel_in_rgb>;
> +				};
> +			};
> +		};
> +	};
> 

Re: [PATCH v5 1/2] devicetree/bindings: display: Add document for rockchip RGB output

[Heiko Stuebner]

Hi Michal,

Am Dienstag, 28. August 2018, 10:31:15 CEST schrieb Michal Vokáč:
> On 28.8.2018 10:12, Sandy Huang wrote:
> > This path add support rv1108 and px30 rgb output interface driver.
> 
> Hi Sandy,
> Seems like you forgot to address Rob's comment regarding the "driver" word.
> Also fix the typo: s/path/patch
> The subject could be improved as well: s/devicetree\/bindings/dt-bindings

We actually honored Rob's bigger concern of the rgb output not being
an actual device backed by programmable hardware and moved the rgb
output inside the driver, see v7 of the patchset [0].


Heiko

[0] https://patchwork.freedesktop.org/patch/246297/
https://patchwork.freedesktop.org/patch/246298/
https://patchwork.freedesktop.org/patch/246299/


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