linux-kernel - Re: [PATCH v5 1/2] dt-bindings: mailbox: mediatek,mt8196-vcp-mbox: add mtk vcp-mbox document

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Message-ID: <CAGXv+5GaJdWPFigVs-XyDZms_0Yvo+58p7N5e+-jwnyAhsO7bQ@mail.gmail.com>
Date: Fri, 22 Aug 2025 13:43:18 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Jjian Zhou <jjian.zhou@...iatek.com>
Cc: Jassi Brar <jassisinghbrar@...il.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-mediatek@...ts.infradead.org, 
	Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v5 1/2] dt-bindings: mailbox: mediatek,mt8196-vcp-mbox:
 add mtk vcp-mbox document

On Fri, Aug 22, 2025 at 10:12 AM Jjian Zhou <jjian.zhou@...iatek.com> wrote:
>
> The MTK VCP mailbox enables the SoC to communicate with the VCP by passing
> messages through 64 32-bit wide registers. It has 32 interrupt vectors in
> either direction for signalling purposes.
>
> This adds a binding for Mediatek VCP mailbox.
>
> Signed-off-by: Jjian Zhou <jjian.zhou@...iatek.com>

Reviewed-by: Chen-Yu Tsai <wenst@...omium.org>

> ---
>  .../mailbox/mediatek,mt8196-vcp-mbox.yaml     | 49 +++++++++++++++++++
>  1 file changed, 49 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mailbox/mediatek,mt8196-vcp-mbox.yaml
>
> diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,mt8196-vcp-mbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,mt8196-vcp-mbox.yaml
> new file mode 100644
> index 000000000000..7b1c5165e64e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mailbox/mediatek,mt8196-vcp-mbox.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mailbox/mediatek,mt8196-vcp-mbox.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek Video Companion Processor (VCP) mailbox
> +
> +maintainers:
> +  - Jjian Zhou <Jjian.Zhou@...iatek.com>
> +
> +description:
> +  The MTK VCP mailbox enables the SoC to communicate with the VCP by passing
> +  messages through 64 32-bit wide registers. It has 32 interrupt vectors in
> +  either direction for signalling purposes.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - mediatek,mt8196-vcp-mbox
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  "#mbox-cells":
> +    const: 0
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - "#mbox-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    mailbox@...80000 {
> +        compatible = "mediatek,mt8196-vcp-mbox";
> +        reg = <0x31b80000 0x1000>;
> +        interrupts = <GIC_SPI 789 IRQ_TYPE_LEVEL_HIGH 0>;
> +        #mbox-cells = <0>;
> +    };
> --
> 2.46.0
>