linux-kernel - Re: [PATCH 3/3] arm64: dts: amlogic: a4: add power domain controller node

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Message-ID: <c97b12bb-8b56-4129-a292-588226a0ec42@linaro.org>
Date: Tue, 28 May 2024 10:46:46 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: xianwei.zhao@...ogic.com, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Kevin Hilman <khilman@...libre.com>,
 Jerome Brunet <jbrunet@...libre.com>,
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
 Jianxin Pan <jianxin.pan@...ogic.com>, Ulf Hansson <ulf.hansson@...aro.org>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-pm@...r.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: amlogic: a4: add power domain controller
 node

On 28/05/2024 10:39, Xianwei Zhao via B4 Relay wrote:
> From: Xianwei Zhao <xianwei.zhao@...ogic.com>
> 
> Add power domain controller node for Amlogic A4 SoC
> 
> Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
> ---
>   arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi | 4 ++++
>   arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi        | 5 +++++
>   2 files changed, 9 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
> index b6106ad4a072..eebde77ae5b4 100644
> --- a/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-a4-common.dtsi
> @@ -27,6 +27,10 @@ xtal: xtal-clk {
>   		#clock-cells = <0>;
>   	};
>   
> +	sm: secure-monitor {
> +		compatible = "amlogic,meson-gxbb-sm";
> +	};
> +
>   	soc {
>   		compatible = "simple-bus";
>   		#address-cells = <2>;
> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi
> index 73ca1d7eed81..917c05219b9c 100644
> --- a/arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi
> @@ -37,4 +37,9 @@ cpu3: cpu@3 {
>   			enable-method = "psci";
>   		};
>   	};
> +
> +	pwrc: power-controller {
> +		compatible = "amlogic,a4-pwrc";
> +		#power-domain-cells = <1>;
> +	};

pwrc is supposed to be a child of secure-monitor.

Neil

>   };
>