dt-bindings: display: bridge: sil,sii8620: convert to dtschema

Convert the Silicon Image SiI8620 HDMI/MHL bridge bindings to DT schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 .../bindings/display/bridge/sil,sii8620.yaml  | 107 ++++++++++++++++++
 .../bindings/display/bridge/sil-sii8620.txt   |  33 ------
 2 files changed, 107 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

Hi Krzysztof,

Thank you for the patch.

On Fri, Jan 27, 2023 at 09:35:25PM +0100, Krzysztof Kozlowski wrote:
> Convert the Silicon Image SiI8620 HDMI/MHL bridge bindings to DT schema.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>  .../bindings/display/bridge/sil,sii8620.yaml  | 107 ++++++++++++++++++
>  .../bindings/display/bridge/sil-sii8620.txt   |  33 ------
>  2 files changed, 107 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..90532bb99161
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml
> @@ -0,0 +1,107 @@
> +# 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:
> +  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> +
> +properties:
> +  compatible:
> +    const: sil,sii8620
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    items:
> +      - const: xtal
> +
> +  cvcc10-supply:
> +    description: Digital Core Supply Voltage (1.0V)
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  iovcc18-supply:
> +    description: I/O Supply Voltage (1.8V)
> +
> +  reset-gpios:
> +    maxItems: 1
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +    unevaluatedProperties: false
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          Video port for HDMI (encoder) input
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description:
> +          MHL to connector port
> +
> +    required:
> +      - port@0

Why port@0 only ?

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - cvcc10-supply
> +  - interrupts
> +  - iovcc18-supply
> +  - reset-gpios
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        bridge@39 {
> +            reg = <0x39>;
> +            compatible = "sil,sii8620";
> +            cvcc10-supply = <&ldo36_reg>;
> +            iovcc18-supply = <&ldo34_reg>;
> +            interrupt-parent = <&gpf0>;
> +            interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
> +            reset-gpios = <&gpv7 0 GPIO_ACTIVE_LOW>;
> +            clocks = <&pmu_system_controller 0>;
> +            clock-names = "xtal";
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port@0 {
> +                    reg = <0>;
> +                    mhl_to_hdmi: endpoint {
> +                        remote-endpoint = <&hdmi_to_mhl>;
> +                    };
> +                };
> +
> +                port@1 {
> +                    reg = <1>;
> +                    mhl_to_musb_con: endpoint {
> +                        remote-endpoint = <&musb_con_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>;
> -			};
> -		};
> -	};

On 28/01/2023 09:30, Laurent Pinchart wrote:
> Hi Krzysztof,
> 
> Thank you for the patch.
> 
> On Fri, Jan 27, 2023 at 09:35:25PM +0100, Krzysztof Kozlowski wrote:
>> Convert the Silicon Image SiI8620 HDMI/MHL bridge bindings to DT schema.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> ---
>>  .../bindings/display/bridge/sil,sii8620.yaml  | 107 ++++++++++++++++++
>>  .../bindings/display/bridge/sil-sii8620.txt   |  33 ------
>>  2 files changed, 107 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..90532bb99161
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/bridge/sil,sii8620.yaml
>> @@ -0,0 +1,107 @@
>> +# 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:
>> +  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> +
>> +properties:
>> +  compatible:
>> +    const: sil,sii8620
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    maxItems: 1
>> +
>> +  clock-names:
>> +    items:
>> +      - const: xtal
>> +
>> +  cvcc10-supply:
>> +    description: Digital Core Supply Voltage (1.0V)
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  iovcc18-supply:
>> +    description: I/O Supply Voltage (1.8V)
>> +
>> +  reset-gpios:
>> +    maxItems: 1
>> +
>> +  ports:
>> +    $ref: /schemas/graph.yaml#/properties/ports
>> +    unevaluatedProperties: false
>> +
>> +    properties:
>> +      port@0:
>> +        $ref: /schemas/graph.yaml#/properties/port
>> +        description:
>> +          Video port for HDMI (encoder) input
>> +
>> +      port@1:
>> +        $ref: /schemas/graph.yaml#/properties/port
>> +        description:
>> +          MHL to connector port
>> +
>> +    required:
>> +      - port@0
> 
> Why port@0 only ?

I am not the author of the original binding, but when it was introduced,
I think it came without MHL port support - only HDMI. This probably is
incomplete but I guess can work due to some default settings. Shall we
make both required? I don't know, sounds reasonable...

Best regards,
Krzysztof