[PATCH v15 05/12] dt-bindings: display: mediatek: merge: add additional prop for mt8195

[Chun-Kuang Hu]

Hi, Jason:

jason-jh.lin <jason-jh.lin at mediatek.com> 於 2022年1月26日 週三 下午3:19寫道：
>
> add MERGE additional properties description for mt8195:
> 1. async clock
> 2. fifo setting enable
> 3. reset controller

Applied to mediatek-drm-next [1], thanks.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next

Regards,
Chun-Kuang

>
> Signed-off-by: jason-jh.lin <jason-jh.lin at mediatek.com>
> Reviewed-by: Chun-Kuang Hu <chunkuang.hu at kernel.org>
> ---
>  .../display/mediatek/mediatek,merge.yaml      | 38 +++++++++++++++++++
>  1 file changed, 38 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
> index 7aa6974d509d..fae106cf1753 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
> @@ -36,8 +36,28 @@ properties:
>        Documentation/devicetree/bindings/power/power-domain.yaml for details.
>
>    clocks:
> +    maxItems: 2
>      items:
>        - description: MERGE Clock
> +      - description: MERGE Async Clock
> +          Controlling the synchronous process between MERGE and other display
> +          function blocks cross clock domain.
> +
> +  clock-names:
> +    maxItems: 2
> +    items:
> +      - const: merge
> +      - const: merge_async
> +
> +  mediatek,merge-fifo-en:
> +    description:
> +      The setting of merge fifo is mainly provided for the display latency
> +      buffer to ensure that the back-end panel display data will not be
> +      underrun, a little more data is needed in the fifo.
> +      According to the merge fifo settings, when the water level is detected
> +      to be insufficient, it will trigger RDMA sending ultra and preulra
> +      command to SMI to speed up the data rate.
> +    type: boolean
>
>    mediatek,gce-client-reg:
>      description: The register of client driver can be configured by gce with
> @@ -47,6 +67,11 @@ properties:
>      $ref: /schemas/types.yaml#/definitions/phandle-array
>      maxItems: 1
>
> +  resets:
> +    description: reset controller
> +      See Documentation/devicetree/bindings/reset/reset.txt for details.
> +    maxItems: 1
> +
>  required:
>    - compatible
>    - reg
> @@ -64,3 +89,16 @@ examples:
>          power-domains = <&spm MT8173_POWER_DOMAIN_MM>;
>          clocks = <&mmsys CLK_MM_DISP_MERGE>;
>      };
> +
> +    merge5: disp_vpp_merge5 at 1c110000 {
> +        compatible = "mediatek,mt8195-disp-merge";
> +        reg = <0 0x1c110000 0 0x1000>;
> +        interrupts = <GIC_SPI 507 IRQ_TYPE_LEVEL_HIGH 0>;
> +        clocks = <&vdosys1 CLK_VDO1_VPP_MERGE4>,
> +                 <&vdosys1 CLK_VDO1_MERGE4_DL_ASYNC>;
> +        clock-names = "merge","merge_async";
> +        power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
> +        mediatek,gce-client-reg = <&gce1 SUBSYS_1c11XXXX 0x0000 0x1000>;
> +        mediatek,merge-fifo-en = <1>;
> +        resets = <&vdosys1 MT8195_VDOSYS1_SW0_RST_B_MERGE4_DL_ASYNC>;
> +    };
> --
> 2.18.0
>