[PATCH v17 1/2] dt-bindings: mailbox: mtk,adsp-mbox: add mtk adsp-mbox document

[allen-kh.cheng]

On Thu, 2022-02-24 at 10:12 -0600, Rob Herring wrote:
> On Thu, Feb 24, 2022 at 09:30:44PM +0800, Allen-KH Cheng wrote:
> > From: Allen-KH Cheng <Allen-KH.Cheng at mediatek.com>
> > 
> > This patch adds document for mediatek adsp mbox
> > 
> > Signed-off-by: Allen-KH Cheng <allen-kh.cheng at mediatek.com>
> > Reviewed-by: AngeloGioacchino Del Regno <
> > angelogioacchino.delregno at collabora.com>
> > ---
> >  .../bindings/mailbox/mtk,adsp-mbox.yaml       | 52
> > +++++++++++++++++++
> >  1 file changed, 52 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/mailbox/mtk,adsp-
> > mbox.yaml b/Documentation/devicetree/bindings/mailbox/mtk,adsp-
> > mbox.yaml
> > new file mode 100644
> > index 000000000000..25756837797f
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml
> > @@ -0,0 +1,52 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: 
> > https://urldefense.com/v3/__http://devicetree.org/schemas/mailbox/mtk,adsp-mbox.yaml*__;Iw!!CTRNKA9wMg0ARbw!1-w9zcYC59nNwgZh8GRqYCSfHVTtj2nHfLuwGaqiLdOeCxlBGUkwqcW50EVBYejpHXulQA$
> >  
> > +$schema: 
> > https://urldefense.com/v3/__http://devicetree.org/meta-schemas/core.yaml*__;Iw!!CTRNKA9wMg0ARbw!1-w9zcYC59nNwgZh8GRqYCSfHVTtj2nHfLuwGaqiLdOeCxlBGUkwqcW50EVBYejjdYjzJw$
> >  
> > +
> > +title: Mediatek ADSP mailbox
> > +
> > +maintainers:
> > +  - Allen-KH Cheng <Allen-KH.Cheng at mediatek.com>
> > +
> > +description: |
> > +  The MTK ADSP mailbox Inter-Processor Communication (IPC) enables
> > the SoC
> > +  to ommunicate with ADSP by passing messages through two mailbox
> > channels.
> > +  The MTK ADSP mailbox IPC also provides the ability for one
> > processor to
> > +  signal the other processor using interrupts.
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - const: mediatek,mt8195-adsp-mbox
> > +
> > +  "#mbox-cells":
> > +    const: 0
> > +
> > +  reg:
> > +    description:
> > +      Physical address base for dsp mbox registers.
> 
> That's fairly obvious. Drop.
> 
> You need to define how many: 'maxItems: 1'
> 
Hi Rob,

thanks for your suggestions and comments.

I will add the number information for reg and interrupts.

Best Regards,
Allen

> > +
> > +  interrupts:
> > +    description:
> > +      adsp mbox interrupt
> 
> Same here.
> 
> > +
> > +required:
> > +  - compatible
> > +  - "#mbox-cells"
> > +  - reg
> > +  - interrupts
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/interrupt-controller/irq.h>
> > +
> > +    adsp_mailbox0:mailbox at 10816000 {
> > +        compatible = "mediatek,mt8195-adsp-mbox";
> > +        #mbox-cells = <0>;
> > +        reg = <0x10816000 0x1000>;
> > +        interrupts = <GIC_SPI 702 IRQ_TYPE_LEVEL_HIGH 0>;
> > +    };
> > -- 
> > 2.18.0
> > 
> >