[5/6] dt-bindings: Add ANX6345 DP/eDP transmitter binding
diff mbox series

Message ID 20190523065400.BD9EB68B05@newverein.lst.de
State New
Headers show
Series
  • Add anx6345 DP/eDP bridge for Olimex Teres-I
Related show

Commit Message

Torsten Duwe May 23, 2019, 6:54 a.m. UTC
From: Icenowy Zheng <icenowy@aosc.io>

The anx6345 is an ultra-low power DisplayPort/eDP transmitter designed
for portable devices.

Add a binding document for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Torsten Duwe <duwe@suse.de>
---
 .../bindings/display/bridge/anx6345.txt       | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/anx6345.txt

Comments

Laurent Pinchart May 23, 2019, 7:31 a.m. UTC | #1
Hi Torsten,

Thank you for the patch.

On Thu, May 23, 2019 at 08:54:00AM +0200, Torsten Duwe wrote:
> From: Icenowy Zheng <icenowy@aosc.io>
> 
> The anx6345 is an ultra-low power DisplayPort/eDP transmitter designed
> for portable devices.
> 
> Add a binding document for it.
> 
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Torsten Duwe <duwe@suse.de>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  .../bindings/display/bridge/anx6345.txt       | 56 +++++++++++++++++++
>  1 file changed, 56 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/anx6345.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/anx6345.txt b/Documentation/devicetree/bindings/display/bridge/anx6345.txt
> new file mode 100644
> index 000000000000..e79a11348d11
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/anx6345.txt
> @@ -0,0 +1,56 @@
> +Analogix ANX6345 eDP Transmitter
> +--------------------------------
> +
> +The ANX6345 is an ultra-low power Full-HD eDP transmitter designed for
> +portable devices.
> +
> +Required properties:
> +
> + - compatible		: "analogix,anx6345"
> + - reg			: I2C address of the device
> + - reset-gpios		: Which GPIO to use for reset
> + - dvdd12-supply	: Regulator for 1.2V digital core power.
> + - dvdd25-supply	: Regulator for 2.5V digital core power.
> +
> +Optional properties:
> +
> + - Video ports for RGB input and eDP output using the DT bindings
> +   defined in [1]
> +
> +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
> +
> +Example:
> +
> +anx6345: anx6345@38 {
> +	compatible = "analogix,anx6345";
> +	reg = <0x38>;
> +	reset-gpios = <&pio 3 24 GPIO_ACTIVE_LOW>; /* PD24 */
> +	dvdd25-supply = <&reg_dldo2>;
> +	dvdd12-supply = <&reg_fldo1>;
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		anx6345_in: port@0 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <0>;
> +			anx6345_in_tcon0: endpoint@0 {
> +				reg = <0>;
> +				remote-endpoint = <&tcon0_out_anx6345>;
> +			};
> +		};
> +
> +		anx6345_out: port@1 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <1>;
> +
> +			anx6345_out_panel: endpoint@0 {
> +				reg = <0>;
> +				remote-endpoint = <&panel_in_edp>;
> +			};
> +		};
> +	};
> +};
Maxime Ripard May 23, 2019, 9:05 a.m. UTC | #2
On Thu, May 23, 2019 at 08:54:00AM +0200, Torsten Duwe wrote:
> From: Icenowy Zheng <icenowy@aosc.io>
>
> The anx6345 is an ultra-low power DisplayPort/eDP transmitter designed
> for portable devices.
>
> Add a binding document for it.
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Torsten Duwe <duwe@suse.de>
> ---
>  .../bindings/display/bridge/anx6345.txt       | 56 +++++++++++++++++++
>  1 file changed, 56 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/anx6345.txt
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/anx6345.txt b/Documentation/devicetree/bindings/display/bridge/anx6345.txt
> new file mode 100644
> index 000000000000..e79a11348d11
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/anx6345.txt
> @@ -0,0 +1,56 @@
> +Analogix ANX6345 eDP Transmitter
> +--------------------------------
> +
> +The ANX6345 is an ultra-low power Full-HD eDP transmitter designed for
> +portable devices.
> +
> +Required properties:
> +
> + - compatible		: "analogix,anx6345"
> + - reg			: I2C address of the device
> + - reset-gpios		: Which GPIO to use for reset
> + - dvdd12-supply	: Regulator for 1.2V digital core power.
> + - dvdd25-supply	: Regulator for 2.5V digital core power.
> +
> +Optional properties:
> +
> + - Video ports for RGB input and eDP output using the DT bindings
> +   defined in [1]

The output node can be optional, but the input one is probably going
to be needed all the time, since otherwise you won't be able to fill
the output port of the upstream device in the graph.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
Torsten Duwe May 23, 2019, 12:30 p.m. UTC | #3
On Thu, May 23, 2019 at 11:05:40AM +0200, Maxime Ripard wrote:
> > +Optional properties:
> > +
> > + - Video ports for RGB input and eDP output using the DT bindings
> > +   defined in [1]
> 
> The output node can be optional, but the input one is probably going
> to be needed all the time, since otherwise you won't be able to fill
> the output port of the upstream device in the graph.

I guess so. A sibling product brief (anx9804)
https://www.analogix.com/en/ttlconvertersbridges
references it as
| LVTTL to DisplayPort 1.2 _transmitter_
so it will probably always be used on the output side.

	Torsten

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/display/bridge/anx6345.txt b/Documentation/devicetree/bindings/display/bridge/anx6345.txt
new file mode 100644
index 000000000000..e79a11348d11
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/anx6345.txt
@@ -0,0 +1,56 @@ 
+Analogix ANX6345 eDP Transmitter
+--------------------------------
+
+The ANX6345 is an ultra-low power Full-HD eDP transmitter designed for
+portable devices.
+
+Required properties:
+
+ - compatible		: "analogix,anx6345"
+ - reg			: I2C address of the device
+ - reset-gpios		: Which GPIO to use for reset
+ - dvdd12-supply	: Regulator for 1.2V digital core power.
+ - dvdd25-supply	: Regulator for 2.5V digital core power.
+
+Optional properties:
+
+ - Video ports for RGB input and eDP output using the DT bindings
+   defined in [1]
+
+[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+
+anx6345: anx6345@38 {
+	compatible = "analogix,anx6345";
+	reg = <0x38>;
+	reset-gpios = <&pio 3 24 GPIO_ACTIVE_LOW>; /* PD24 */
+	dvdd25-supply = <&reg_dldo2>;
+	dvdd12-supply = <&reg_fldo1>;
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		anx6345_in: port@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			anx6345_in_tcon0: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&tcon0_out_anx6345>;
+			};
+		};
+
+		anx6345_out: port@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			anx6345_out_panel: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&panel_in_edp>;
+			};
+		};
+	};
+};