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

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Message-ID: <f6fff608-42d8-2c71-02a5-102f19db6291@collabora.com>
Date:   Tue, 15 Feb 2022 14:50:42 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     "allen-kh.cheng" <allen-kh.cheng@...iatek.com>,
        Jassi Brar <jassisinghbrar@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Linux-ALSA <alsa-devel@...a-project.org>, tzungbi@...gle.com,
        cujomalainey@...gle.com,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Daniel Baluta <daniel.baluta@....com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Kevin Hilman <khilman@...libre.com>,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        sound-open-firmware@...a-project.org
Subject: Re: [PATCH v17 1/2] dt-bindings: mailbox: add mtk adsp-mbox document

Il 28/01/22 12:08, allen-kh.cheng ha scritto:
> From: Allen-KH Cheng <Allen-KH.Cheng@...iatek.com>
> 
> This patch adds document for mediatek adsp mbox
> 
> Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@...iatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.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
> +---
> +$id: http://devicetree.org/schemas/mailbox/mtk,adsp-mbox.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek ADSP mailbox
> +
> +maintainers:
> +  - Allen-KH Cheng <Allen-KH.Cheng@...iatek.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.
> +
> +  interrupts:
> +    description:
> +      adsp mbox interrupt
> +
> +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@...16000 {
> +        compatible = "mediatek,mt8195-adsp-mbox";
> +        #mbox-cells = <0>;
> +        reg = <0x10816000 0x1000>;
> +        interrupts = <GIC_SPI 702 IRQ_TYPE_LEVEL_HIGH 0>;
> +    };