Re: [PATCH v5 3/3] dt-binding: mediatek: add MediaTek mt8195 MDP3 components

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On 12/09/2023 09:56, Moudy Ho wrote:
> Introduce more MDP3 components present in MT8195.

Please use subject prefixes matching the subsystem. You can get them for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
your patch is touching.

> 
> Signed-off-by: Moudy Ho <moudy.ho@xxxxxxxxxxxx>
> ---
>  .../display/mediatek/mediatek,aal.yaml        |  2 +-
>  .../display/mediatek/mediatek,color.yaml      |  2 +-
>  .../display/mediatek/mediatek,merge.yaml      |  1 +
>  .../display/mediatek/mediatek,ovl.yaml        |  2 +-
>  .../display/mediatek/mediatek,split.yaml      |  1 +
>  .../bindings/media/mediatek,mdp3-fg.yaml      | 61 +++++++++++++++++++
>  .../bindings/media/mediatek,mdp3-hdr.yaml     | 60 ++++++++++++++++++
>  .../bindings/media/mediatek,mdp3-pad.yaml     | 61 +++++++++++++++++++
>  .../bindings/media/mediatek,mdp3-rdma.yaml    | 16 ++---
>  .../bindings/media/mediatek,mdp3-stitch.yaml  | 61 +++++++++++++++++++
>  .../bindings/media/mediatek,mdp3-tcc.yaml     | 60 ++++++++++++++++++
>  .../bindings/media/mediatek,mdp3-tdshp.yaml   | 61 +++++++++++++++++++
>  12 files changed, 378 insertions(+), 10 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-fg.yaml
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-hdr.yaml
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-pad.yaml
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-stitch.yaml
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-tcc.yaml
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,mdp3-tdshp.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
> index 7fd42c8fdc32..04b1314d00f2 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
> @@ -24,6 +24,7 @@ properties:
>        - enum:
>            - mediatek,mt8173-disp-aal
>            - mediatek,mt8183-disp-aal
> +          - mediatek,mt8195-mdp3-aal
>        - items:
>            - enum:
>                - mediatek,mt2712-disp-aal
> @@ -63,7 +64,6 @@ properties:
>  required:
>    - compatible
>    - reg
> -  - interrupts

Why? commit msg tells nothing about it. Why interrupt is not erquired in
mt8173? How dropping such requirement is anyhow related to mt8195?


>    - power-domains
>    - clocks
>  
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
> index f21e44092043..8e97b0a6a7b3 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
> @@ -26,6 +26,7 @@ properties:
>            - mediatek,mt2701-disp-color
>            - mediatek,mt8167-disp-color
>            - mediatek,mt8173-disp-color
> +          - mediatek,mt8195-mdp3-color
>        - items:
>            - enum:
>                - mediatek,mt7623-disp-color
> @@ -66,7 +67,6 @@ properties:
>  required:
>    - compatible
>    - reg
> -  - interrupts

Why?

>    - power-domains
>    - clocks
>  
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
> index eead5cb8636e..401498523404 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
> @@ -24,6 +24,7 @@ properties:
>        - enum:
>            - mediatek,mt8173-disp-merge
>            - mediatek,mt8195-disp-merge
> +          - mediatek,mt8195-mdp3-merge
>        - items:
>            - const: mediatek,mt6795-disp-merge
>            - const: mediatek,mt8173-disp-merge
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
> index 3e1069b00b56..10d4d4f64e09 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
> @@ -26,6 +26,7 @@ properties:
>            - mediatek,mt8173-disp-ovl
>            - mediatek,mt8183-disp-ovl
>            - mediatek,mt8192-disp-ovl
> +          - mediatek,mt8195-mdp3-ovl
>        - items:
>            - enum:
>                - mediatek,mt7623-disp-ovl
> @@ -76,7 +77,6 @@ properties:
>  required:
>    - compatible
>    - reg
> -  - interrupts

Why?

>    - power-domains
>    - clocks
>    - iommus
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
> index a8a5c9608598..a96b271e3240 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
> @@ -23,6 +23,7 @@ properties:
>      oneOf:
>        - enum:
>            - mediatek,mt8173-disp-split
> +          - mediatek,mt8195-mdp3-split
>        - items:
>            - const: mediatek,mt6795-disp-split
>            - const: mediatek,mt8173-disp-split
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-fg.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-fg.yaml
> new file mode 100644
> index 000000000000..71fd449de8b4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-fg.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mdp3-fg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek Media Data Path 3 FG
> +
> +maintainers:
> +  - Matthias Brugger <matthias.bgg@xxxxxxxxx>
> +  - Moudy Ho <moudy.ho@xxxxxxxxxxxx>
> +
> +description:
> +  One of Media Data Path 3 (MDP3) components used to add film grain
> +  according to AV1 spec.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - mediatek,mt8195-mdp3-fg
> +
> +  reg:
> +    maxItems: 1
> +
> +  mediatek,gce-client-reg:
> +    description:
> +      The register of display function block to be set by gce. There are 4 arguments,
> +      such as gce node, subsys id, offset and register size. The subsys id that is
> +      mapping to the register of display function blocks is defined in the gce header
> +      include/dt-bindings/gce/<chip>-gce.h of each chips.
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    items:
> +      items:
> +        - description: phandle of GCE
> +        - description: GCE subsys id
> +        - description: register offset
> +        - description: register size
> +    maxItems: 1
> +
> +  clocks:
> +    minItems: 1

This must be maxItems. Use existing code as an example, do not re-invent it.

> +
> +required:
> +  - compatible
> +  - reg
> +  - mediatek,gce-client-reg
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/mt8195-clk.h>
> +    #include <dt-bindings/gce/mt8195-gce.h>
> +
> +    display@14002000 {
> +        compatible = "mediatek,mt8195-mdp3-fg";
> +        reg = <0x14002000 0x1000>;
> +        mediatek,gce-client-reg = <&gce1 SUBSYS_1400XXXX 0x2000 0x1000>;
> +        clocks = <&vppsys0 CLK_VPP0_MDP_FG>;
> +    };
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-hdr.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-hdr.yaml
> new file mode 100644
> index 000000000000..fb1bb5a9e57f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-hdr.yaml
> @@ -0,0 +1,60 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mdp3-hdr.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek Media Data Path 3 HDR
> +
> +maintainers:
> +  - Matthias Brugger <matthias.bgg@xxxxxxxxx>
> +  - Moudy Ho <moudy.ho@xxxxxxxxxxxx>
> +
> +description:
> +  One of Media Data Path 3 (MDP3) components used to perform HDR to SDR
> +
> +properties:
> +  compatible:
> +    enum:
> +      - mediatek,mt8195-mdp3-hdr
> +
> +  reg:
> +    maxItems: 1
> +
> +  mediatek,gce-client-reg:
> +    description:
> +      The register of display function block to be set by gce. There are 4 arguments,
> +      such as gce node, subsys id, offset and register size. The subsys id that is
> +      mapping to the register of display function blocks is defined in the gce header
> +      include/dt-bindings/gce/<chip>-gce.h of each chips.
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    items:
> +      items:
> +        - description: phandle of GCE
> +        - description: GCE subsys id
> +        - description: register offset
> +        - description: register size
> +    maxItems: 1
> +
> +  clocks:
> +    minItems: 1

Here as well. Why is this minitems?

> +
> +required:
> +  - compatible
> +  - reg
> +  - mediatek,gce-client-reg
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/mt8195-clk.h>
> +    #include <dt-bindings/gce/mt8195-gce.h>
> +
> +    display@14004000 {
> +        compatible = "mediatek,mt8195-mdp3-hdr";
> +        reg = <0x14004000 0x1000>;
> +        mediatek,gce-client-reg = <&gce1 SUBSYS_1400XXXX 0x4000 0x1000>;
> +        clocks = <&vppsys0 CLK_VPP0_MDP_HDR>;
> +    };
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-pad.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-pad.yaml
> new file mode 100644
> index 000000000000..13b66c5985fe
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-pad.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mdp3-pad.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek Media Data Path 3 PADDING
> +
> +maintainers:
> +  - Matthias Brugger <matthias.bgg@xxxxxxxxx>
> +  - Moudy Ho <moudy.ho@xxxxxxxxxxxx>
> +
> +description:
> +  One of Media Data Path 3 (MDP3) components used to insert
> +  pre-defined color or alpha value to arbitrary side of image.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - mediatek,mt8195-mdp3-pad

And you cannot add it to existing padding because?

> +
> +  reg:
> +    maxItems: 1
> +
> +  mediatek,gce-client-reg:
> +    description:
> +      The register of display function block to be set by gce. There are 4 arguments,
> +      such as gce node, subsys id, offset and register size. The subsys id that is
> +      mapping to the register of display function blocks is defined in the gce header
> +      include/dt-bindings/gce/<chip>-gce.h of each chips.
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    items:
> +      items:
> +        - description: phandle of GCE
> +        - description: GCE subsys id
> +        - description: register offset
> +        - description: register size
> +    maxItems: 1
> +
> +  clocks:
> +    minItems: 1

Nope

> +
> +required:
> +  - compatible
> +  - reg
> +  - mediatek,gce-client-reg
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/mt8195-clk.h>
> +    #include <dt-bindings/gce/mt8195-gce.h>
> +
> +    display@1400a000 {
> +        compatible = "mediatek,mt8195-mdp3-pad";
> +        reg = <0x1400a000 0x1000>;
> +        mediatek,gce-client-reg = <&gce1 SUBSYS_1400XXXX 0xa000 0x1000>;
> +        clocks = <&vppsys0 CLK_VPP0_PADDING>;
> +    };
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
> index 0c22571d8c22..17cd5b587e23 100644
> --- a/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
> +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
> @@ -23,6 +23,7 @@ properties:
>      enum:
>        - mediatek,mt8183-mdp3-rdma
>        - mediatek,mt8195-vdo1-rdma
> +      - mediatek,mt8195-mdp3-rdma

m is before v

>  
>    reg:
>      maxItems: 1
> @@ -50,17 +51,19 @@ properties:
>      maxItems: 1
>  
>    clocks:
> -    items:
> -      - description: RDMA clock
> -      - description: RSZ clock
> +    oneOf:
> +      - items:
> +          - description: RDMA clock
> +          - description: SRAM shared component clock
> +      - items:
> +          - description: RDMA clock

Why now mt8183 can have SRAM clock optional? How changing mt8183 is
related to this patch?

I'll finish the review, sorry fix basics here.

Best regards,
Krzysztof




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