linux-kernel - Re: [PATCH v2] dt-bindings: display/bridge: sil,sii8620: Convert to YAML binding

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Date:   Thu, 14 Oct 2021 15:26:07 -0500
From:   Rob Herring <robh@...nel.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     airlied@...ux.ie, daniel@...ll.ch, a.hajda@...sung.com,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bindings: display/bridge: sil,sii8620: Convert to
 YAML binding

On Wed, Oct 06, 2021 at 05:04:59PM +0200, AngeloGioacchino Del Regno wrote:
> Convert the Silicon Image SiI8620 HDMI/MHL bridge documentation to YAML.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>  .../bindings/display/bridge/sil,sii8620.yaml  | 93 +++++++++++++++++++
>  .../bindings/display/bridge/sil-sii8620.txt   | 33 -------
>  2 files changed, 93 insertions(+), 33 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml
>  delete mode 100644 Documentation/devicetree/bindings/display/bridge/sil-sii8620.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml b/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml
> new file mode 100644
> index 000000000000..5a38595b6687
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml
> @@ -0,0 +1,93 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/sil,sii8620.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Silicon Image SiI8620 HDMI/MHL bridge
> +
> +maintainers:
> +  - Andrzej Hajda <a.hajda@...sung.com>
> +
> +properties:
> +  compatible:
> +    const: sil,sii8620
> +
> +  reg:
> +    description: I2C address of the bridge
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: xtal
> +
> +  cvcc10-supply:
> +    description: Digital Core Supply Voltage, 1.0V
> +
> +  iovcc18-supply:
> +    description: I/O voltage supply, 1.8V
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  reset-gpios:
> +    description: GPIO connected to the reset pin.
> +    maxItems: 1
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          Video port for HDMI input

No need for 'ports' with only one port. However, this *should* have an 
output port for a connector, so I'm okay with this change. However, 
don't add that now. Just note the addition of 'ports' in the commit msg.

> +
> +    required:
> +      - port@0
> +
> +required:
> +  - compatible
> +  - reg
> +  - cvcc10-supply
> +  - iovcc18-supply
> +  - interrupts
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    i2c1 {

i2c {

> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      bridge@39 {
> +        compatible = "sil,sii8620";
> +        reg = <0x39>;
> +        cvcc10-supply = <&ldo36_reg>;
> +        iovcc18-supply = <&ldo34_reg>;
> +        interrupt-parent = <&gpf0>;
> +        interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
> +        reset-gpios = <&gpv7 0 GPIO_ACTIVE_HIGH>;
> +
> +        ports {
> +          #address-cells = <1>;
> +          #size-cells = <0>;
> +
> +          port@0 {
> +            reg = <0>;
> +            mhl_to_hdmi: endpoint {
> +              remote-endpoint = <&hdmi_to_mhl>;
> +            };
> +          };
> +        };
> +      };
> +    };
> +
> +...
> diff --git a/Documentation/devicetree/bindings/display/bridge/sil-sii8620.txt b/Documentation/devicetree/bindings/display/bridge/sil-sii8620.txt
> deleted file mode 100644
> index b05052f7d62f..000000000000
> --- a/Documentation/devicetree/bindings/display/bridge/sil-sii8620.txt
> +++ /dev/null
> @@ -1,33 +0,0 @@
> -Silicon Image SiI8620 HDMI/MHL bridge bindings
> -
> -Required properties:
> -	- compatible: "sil,sii8620"
> -	- reg: i2c address of the bridge
> -	- cvcc10-supply: Digital Core Supply Voltage (1.0V)
> -	- iovcc18-supply: I/O Supply Voltage (1.8V)
> -	- interrupts: interrupt specifier of INT pin
> -	- reset-gpios: gpio specifier of RESET pin
> -	- clocks, clock-names: specification and name of "xtal" clock
> -	- video interfaces: Device node can contain video interface port
> -			    node for HDMI encoder according to [1].
> -
> -[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
> -
> -Example:
> -	sii8620@39 {
> -		reg = <0x39>;
> -		compatible = "sil,sii8620";
> -		cvcc10-supply = <&ldo36_reg>;
> -		iovcc18-supply = <&ldo34_reg>;
> -		interrupt-parent = <&gpf0>;
> -		interrupts = <2 0>;
> -		reset-gpio = <&gpv7 0 0>;
> -		clocks = <&pmu_system_controller 0>;
> -		clock-names = "xtal";
> -
> -		port {
> -			mhl_to_hdmi: endpoint {
> -				remote-endpoint = <&hdmi_to_mhl>;
> -			};
> -		};
> -	};
> -- 
> 2.33.0
> 
>