linux-kernel - Re: [PATCH RFC 3/3] dt-bindings: mailbox: mtk,vcp-mbox: add mtk vcp-mbox document

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Message-ID: <a37826597bd6e7889d191163865e49a06f70fca4.camel@mediatek.com>
Date: Sat, 8 Mar 2025 03:46:30 +0000
From: Jjian Zhou (周建) <Jjian.Zhou@...iatek.com>
To: "conor@...nel.org" <conor@...nel.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Jason-ch Chen (陳建豪)
	<Jason-ch.Chen@...iatek.com>, "conor+dt@...nel.org" <conor+dt@...nel.org>,
	Project_Global_Chrome_Upstream_Group
	<Project_Global_Chrome_Upstream_Group@...iatek.com>, "robh@...nel.org"
	<robh@...nel.org>, "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "matthias.bgg@...il.com"
	<matthias.bgg@...il.com>, "jassisinghbrar@...il.com"
	<jassisinghbrar@...il.com>, "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH RFC 3/3] dt-bindings: mailbox: mtk,vcp-mbox: add mtk
 vcp-mbox document

On Wed, 2025-03-05 at 16:31 +0000, Conor Dooley wrote:
> On Wed, Mar 05, 2025 at 04:20:40PM +0800, Jjian Zhou wrote:
> > This patch adds document for mediatek vcp mbox.
> > 
> > Signed-off-by: Jjian Zhou <jjian.zhou@...iatek.com>
> > ---
> >  .../bindings/mailbox/mtk,vcp-mbox.yaml        | 49
> > +++++++++++++++++++
> >  1 file changed, 49 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/mailbox/mtk,vcp-mbox.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/mailbox/mtk,vcp-
> > mbox.yaml b/Documentation/devicetree/bindings/mailbox/mtk,vcp-
> > mbox.yaml
> > new file mode 100644
> > index 000000000000..d5afe295af14
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mailbox/mtk,vcp-mbox.yaml
> 
> When you go !RFC, filename matching compatible please.
  I will rename the yaml file to mtk,mt8196-vcp-mbox.yaml.
  Thanks for your review.
> 
> > @@ -0,0 +1,49 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mailbox/mtk,vcp-mbox.yaml#
> > +$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>
> > +
> > +    vcp_mailbox0: mailbox@...80000 {
> 
> label here is unused, please drop it.
> 
> Cheers,
> Conor.

   OK. I will drop it in version-two.
> 
> > +        compatible = "mediatek,mt8196-vcp-mbox";
> > +        reg = <0x31b80000 0x1000>;
> > +        interrupts = <GIC_SPI 789 IRQ_TYPE_LEVEL_HIGH 0>;
> > +        #mbox-cells = <0>;
> > +    };
> > -- 
> > 2.45.2
> >