linux-kernel - Re: [PATCH v6 09/16] dt-bindings: media: mediatek: mdp3: add component STITCH for MT8195

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Message-ID: <fd167162432a28d716bb532291f9c13e2916b286.camel@mediatek.com>
Date:   Wed, 27 Sep 2023 08:35:37 +0000
From:   Moudy Ho (何宗原) <Moudy.Ho@...iatek.com>
To:     "robh@...nel.org" <robh@...nel.org>
CC:     "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
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        "airlied@...il.com" <airlied@...il.com>,
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        <krzysztof.kozlowski+dt@...aro.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
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        <angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH v6 09/16] dt-bindings: media: mediatek: mdp3: add
 component STITCH for MT8195

On Mon, 2023-09-25 at 11:09 -0500, Rob Herring wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  On Fri, Sep 22, 2023 at 03:21:09PM +0800, Moudy Ho wrote:
> > Add the fundamental hardware configuration of component STITCH,
> 
> STITCH? You mean TCC?
> 
Hi Rob,

Apologize for the typo, it will be promptly addressed and corrected.

> > which is controlled by MDP3 on MT8195.
> > 
> > Signed-off-by: Moudy Ho <moudy.ho@...iatek.com>
> > ---
> >  .../bindings/media/mediatek,mdp3-tcc.yaml     | 60
> +++++++++++++++++++
> >  1 file changed, 60 insertions(+)
> >  create mode 100644
> Documentation/devicetree/bindings/media/mediatek,mdp3-tcc.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-
> tcc.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-
> tcc.yaml
> > new file mode 100644
> > index 000000000000..245e2134c74a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-
> tcc.yaml
> > @@ -0,0 +1,60 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/mediatek,mdp3-tcc.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: MediaTek Media Data Path 3 TCC
> > +
> > +maintainers:
> > +  - Matthias Brugger <matthias.bgg@...il.com>
> > +
> > +description:
> > +  One of Media Data Path 3 (MDP3) components used to support
> > +  HDR gamma curve conversion HDR displays.
> 
> Please say what the block does.
> 

I will provide a more specific description for this.

Sincerely,
Moudy

> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - mediatek,mt8195-mdp3-tcc
> > +
> > +  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
> > +
> > +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@...0b000 {
> > +        compatible = "mediatek,mt8195-mdp3-tcc";
> > +        reg = <0x1400b000 0x1000>;
> > +        mediatek,gce-client-reg = <&gce1 SUBSYS_1400XXXX 0xb000
> 0x1000>;
> > +        clocks = <&vppsys0 CLK_VPP0_MDP_TCC>;
> > +    };
> > -- 
> > 2.18.0
> >