linux-kernel - Re: [PATCH] arm64: dts: mt8183: Add missing power-domain for pwm0 node

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Date:   Thu, 28 Jan 2021 18:09:34 +0100
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        linux-kernel@...r.kernel.org
Cc:     drinkcat@...omium.org, hsinyi@...omium.org,
        Collabora Kernel ML <kernel@...labora.com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] arm64: dts: mt8183: Add missing power-domain for pwm0
 node



On 13/01/2021 22:57, Enric Balletbo i Serra wrote:
> The MT8183 display PWM device will not work until the associated
> power-domain is enabled. Add the power-domain reference to the node
> allows the display PWM driver to operate and the backlight turn on.
> 
> Fixes: f15722c0fef0 ("arm64: dts: mt8183: Add pwm and backlight node")
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> ---

applied to v5.11-next/dts64

Thanks!

> 
>  arch/arm64/boot/dts/mediatek/mt8183.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index bda283fa9245..8471c973dfd5 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -661,6 +661,7 @@ pwm0: pwm@...0e000 {
>  			compatible = "mediatek,mt8183-disp-pwm";
>  			reg = <0 0x1100e000 0 0x1000>;
>  			interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_LOW>;
> +			power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
>  			#pwm-cells = <2>;
>  			clocks = <&topckgen CLK_TOP_MUX_DISP_PWM>,
>  					<&infracfg CLK_INFRA_DISP_PWM>;
>