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    Subject[PATCH v1 04/17] dt-bindings: display: mediatek: add MT8195 hdmi bindings
    Add mt8195 SoC bindings for hdmi and hdmi-ddc

    Make port1 optional for mt8195 as it only supports HDMI tx for now.
    Requires a ddc-i2c-bus phandle.
    Requires a power-domains phandle.

    Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>

    diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
    index bdaf0b51e68c..abb231a0694b 100644
    --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
    +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
    @@ -21,6 +21,10 @@ properties:
    - mediatek,mt7623-hdmi
    - mediatek,mt8167-hdmi
    - mediatek,mt8173-hdmi
    + - mediatek,mt8195-hdmi
    +
    + clocks: true
    + clock-names: true

    reg:
    maxItems: 1
    @@ -28,20 +32,6 @@ properties:
    interrupts:
    maxItems: 1

    - clocks:
    - items:
    - - description: Pixel Clock
    - - description: HDMI PLL
    - - description: Bit Clock
    - - description: S/PDIF Clock
    -
    - clock-names:
    - items:
    - - const: pixel
    - - const: pll
    - - const: bclk
    - - const: spdif
    -
    phys:
    maxItems: 1

    @@ -58,6 +48,16 @@ properties:
    description: |
    phandle link and register offset to the system configuration registers.

    + ddc-i2c-bus:
    + $ref: '/schemas/types.yaml#/definitions/phandle'
    + description: Phandle to the ddc-i2c device
    +
    + power-domains:
    + description:
    + A phandle and PM domain specifier as defined by bindings
    + of the power controller specified by phandle. See
    + Documentation/devicetree/bindings/power/power-domain.yaml for details.
    +
    ports:
    $ref: /schemas/graph.yaml#/properties/ports

    @@ -76,7 +76,6 @@ properties:

    required:
    - port@0
    - - port@1

    required:
    - compatible
    @@ -86,9 +85,55 @@ required:
    - clock-names
    - phys
    - phy-names
    - - mediatek,syscon-hdmi
    - ports

    +allOf:
    + - if:
    + properties:
    + compatible:
    + contains:
    + const: mediatek,mt8195-hdmi
    + then:
    + properties:
    + clocks:
    + items:
    + - description: APB
    + - description: HDCP
    + - description: HDCP 24M
    + - description: Split HDMI
    + clock-names:
    + items:
    + - const: hdmi_apb_sel
    + - const: hdcp_sel
    + - const: hdcp24_sel
    + - const: split_hdmi
    +
    + required:
    + - power-domains
    + - ddc-i2c-bus
    + else:
    + properties:
    + clocks:
    + items:
    + - description: Pixel Clock
    + - description: HDMI PLL
    + - description: Bit Clock
    + - description: S/PDIF Clock
    +
    + clock-names:
    + items:
    + - const: pixel
    + - const: pll
    + - const: bclk
    + - const: spdif
    +
    + ports:
    + required:
    + - port@1
    +
    + required:
    + - mediatek,syscon-hdmi
    +
    additionalProperties: false

    examples:
    diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
    new file mode 100644
    index 000000000000..3c80bcebe6d3
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
    @@ -0,0 +1,45 @@
    +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    +%YAML 1.2
    +---
    +$id: http://devicetree.org/schemas/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml#
    +$schema: http://devicetree.org/meta-schemas/core.yaml#
    +
    +title: Mediatek HDMI DDC Device Tree Bindings for mt8195
    +
    +maintainers:
    + - CK Hu <ck.hu@mediatek.com>
    + - Jitao shi <jitao.shi@mediatek.com>
    +
    +description: |
    + The HDMI DDC i2c controller is used to interface with the HDMI DDC pins.
    +
    +properties:
    + compatible:
    + enum:
    + - mediatek,mt8195-hdmi-ddc
    +
    + clocks:
    + maxItems: 1
    +
    + clock-names:
    + items:
    + - const: ddc-i2c
    +
    +required:
    + - compatible
    + - clocks
    + - clock-names
    +
    +additionalProperties: false
    +
    +examples:
    + - |
    + #include <dt-bindings/interrupt-controller/arm-gic.h>
    + #include <dt-bindings/interrupt-controller/irq.h>
    + hdmiddc0: ddc_i2c {
    + compatible = "mediatek,mt8195-hdmi-ddc";
    + clocks = <&clk26m>;
    + clock-names = "ddc-i2c";
    + };
    +
    +...
    --
    b4 0.10.0-dev

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