[Letux-kernel] [PATCH v8 3/8] dt-bindings: display: Add ingenic, jz4780-dw-hdmi DT Schema

H. Nikolaus Schaller hns at goldelico.com
Wed Nov 24 17:21:13 CET 2021


Hi Rob and Paul,

> Am 24.11.2021 um 10:17 schrieb Paul Cercueil <paul at crapouillou.net>:
> 
> Hi Nikolaus,
> 
> Le mar., nov. 23 2021 at 19:13:56 +0100, H. Nikolaus Schaller <hns at goldelico.com> a écrit :
>> From: Sam Ravnborg <sam at ravnborg.org>
>> Add DT bindings for the hdmi driver for the Ingenic JZ4780 SoC.
>> Based on .txt binding from Zubair Lutfullah Kakakhel
>> We also add generic ddc-i2c-bus to synopsys,dw-hdmi.yaml
>> Signed-off-by: Sam Ravnborg <sam at ravnborg.org>
>> Signed-off-by: H. Nikolaus Schaller <hns at goldelico.com>
>> Cc: Rob Herring <robh at kernel.org>
>> Cc: devicetree at vger.kernel.org
>> ---
>> .../display/bridge/ingenic,jz4780-hdmi.yaml   | 76 +++++++++++++++++++
>> .../display/bridge/synopsys,dw-hdmi.yaml      |  3 +
>> 2 files changed, 79 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
>> diff --git a/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
>> new file mode 100644
>> index 0000000000000..190ca4521b1d0
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
>> @@ -0,0 +1,76 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/bridge/ingenic,jz4780-hdmi.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Bindings for Ingenic JZ4780 HDMI Transmitter
>> +
>> +maintainers:
>> +  - H. Nikolaus Schaller <hns at goldelico.com>
>> +
>> +description: |
>> +  The HDMI Transmitter in the Ingenic JZ4780 is a Synopsys DesignWare HDMI 1.4
>> +  TX controller IP with accompanying PHY IP.
>> +
>> +allOf:
>> +  - $ref: bridge/synopsys,dw-hdmi.yaml#
>> +
>> +properties:
>> +  compatible:
>> +    const: ingenic,jz4780-dw-hdmi
>> +
>> +  reg-io-width:
>> +    const: 4
>> +
>> +  clocks:
>> +    maxItems: 2
>> +
>> +  hdmi-5v-supply:
>> +    description: Optional regulator to provide +5V at the connector
>> +
>> +  ports:
>> +    $ref: /schemas/graph.yaml#/properties/ports
>> +
>> +required:
>> +    - compatible
>> +    - clocks
>> +    - clock-names
>> +    - ports
>> +    - reg-io-width
>> +
>> +unevaluatedPropertes: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/clock/jz4780-cgu.h>
> 
> This include was moved in 5.16-rc1 to <dt-bindings/clock/ingenic,jz4780-cgu.h>.

I see!

> 
> Cheers,
> -Paul
> 
>> +
>> +    hdmi: hdmi at 10180000 {
>> +        compatible = "ingenic,jz4780-dw-hdmi";
>> +        reg = <0x10180000 0x8000>;
>> +        reg-io-width = <4>;
>> +        ddc-i2c-bus = <&i2c4>;
>> +        interrupt-parent = <&intc>;
>> +        interrupts = <3>;
>> +        clocks = <&cgu JZ4780_CLK_AHB0>, <&cgu JZ4780_CLK_HDMI>;
>> +        clock-names = "iahb", "isfr";
>> +
>> +        ports {
>> +            #address-cells = <1>;
>> +            #size-cells = <0>;
>> +            hdmi_in: port at 0 {
>> +                reg = <0>;
>> +                dw_hdmi_in: endpoint {
>> +                    remote-endpoint = <&jz4780_lcd_out>;
>> +                };
>> +            };
>> +            hdmi_out: port at 1 {
>> +                reg = <1>;
>> +                dw_hdmi_out: endpoint {
>> +                    remote-endpoint = <&hdmi_con>;
>> +                };
>> +            };
>> +        };
>> +    };
>> +
>> +...
>> diff --git a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
>> index 9be44a682e67a..9cbeabaee0968 100644
>> --- a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
>> +++ b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
>> @@ -50,6 +50,9 @@ properties:
>>   interrupts:
>>     maxItems: 1
>> +  ddc-i2c-bus:
>> +    description: An I2C interface if the internal DDC I2C driver is not to be used
>> +
>> additionalProperties: true
>> ...
>> --
>> 2.33.0
> 
> 



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