linux-kernel - Re: [PATCH 3/3] arm64: dts: add support for C3 power domain controller

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Message-ID: <992f74b3-373c-14d2-12cc-85ada068d54b@linaro.org>
Date:   Mon, 3 Jul 2023 15:12:30 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     =Xianwei Zhao <xianwei.zhao@...ogic.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kevin Hilman <khilman@...libre.com>
Subject: Re: [PATCH 3/3] arm64: dts: add support for C3 power domain
 controller

On 03/07/2023 11:31, =Xianwei Zhao wrote:
> From: Xianwei Zhao <xianwei.zhao@...ogic.com>
> 
> Enable power domain controller for Amlogic C3 SoC
> 
> Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
> ---
>  arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
> index 60ad4f3eef9d..826c51b1aff6 100644
> --- a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
> @@ -47,6 +47,16 @@ xtal: xtal-clk {
>  		#clock-cells = <0>;
>  	};
>  
> +	sm: secure-monitor {
> +		compatible = "amlogic,meson-gxbb-sm";
> +
> +		pwrc: power-controller {
> +			compatible = "amlogic,c3-pwrc";
> +			#power-domain-cells = <1>;
> +			status = "okay";

Why do you need it? okay is by default.

Best regards,
Krzysztof