linux-kernel - Re: [PATCH] arm64: dts: mediatek: mt8173: Add gce-client-reg handle to disp-mutex

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Message-ID: <a263e572-35ec-9671-50e3-dbc71b55b6cd@collabora.com>
Date:   Wed, 6 Apr 2022 13:45:25 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     robh+dt@...nel.org
Cc:     krzysztof.kozlowski@...onical.com, matthias.bgg@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: Re: [PATCH] arm64: dts: mediatek: mt8173: Add gce-client-reg handle
 to disp-mutex

Il 28/02/22 12:03, AngeloGioacchino Del Regno ha scritto:
> Add a gce client reg handle to the disp mutex to enable MT8173
> platforms to use MediaTek's CMDQ for extra performance.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8173.dtsi | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> index 291db4fcbb25..9eaea1156e25 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> @@ -1278,6 +1278,7 @@ mutex: mutex@...20000 {
>   			interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_LOW>;
>   			power-domains = <&spm MT8173_POWER_DOMAIN_MM>;
>   			clocks = <&mmsys CLK_MM_MUTEX_32K>;
> +			mediatek,gce-client-reg = <&gce SUBSYS_1402XXXX 0 0x1000>;
>   			mediatek,gce-events = <CMDQ_EVENT_MUTEX0_STREAM_EOF>,
>                                                 <CMDQ_EVENT_MUTEX1_STREAM_EOF>;
>   		};

Hello, this is a friendly ping to avoid forgetting about this patch.

As a note, this was successfully tested on MT8173 Acer Chromebook R13 (Elm).

Cheers,
Angelo