[PATCH 3/3] arm64: dts: apple: t8103: Add apple, min-ps to DCP PMGR nodes

Sven Peter sven at svenpeter.dev
Sat Dec 11 04:24:45 PST 2021


On Thu, Dec 9, 2021, at 05:45, Hector Martin wrote:
> This is required for DCP to boot successfully; it seems if power gating
> is allowed, they do not wake up properly.
>
> Signed-off-by: Hector Martin <marcan at marcan.st>

Reviewed-by: Sven Peter <sven at svenpeter.dev>

> ---
>  arch/arm64/boot/dts/apple/t8103-pmgr.dtsi | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi 
> b/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
> index 1310be74df1d..fc51bc872468 100644
> --- a/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
> +++ b/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
> @@ -665,6 +665,7 @@ ps_dispext_cpu0: power-controller at 378 {
>  		#reset-cells = <0>;
>  		label = "dispext_cpu0";
>  		power-domains = <&ps_dispext_fe>;
> +		apple,min-state = <4>;
>  	};
> 
>  	ps_jpg: power-controller at 3c0 {
> @@ -1005,6 +1006,7 @@ ps_disp0_cpu0: power-controller at 10018 {
>  		label = "disp0_cpu0";
>  		power-domains = <&ps_disp0_fe>;
>  		apple,always-on; /* TODO: figure out if we can enable PM here */
> +		apple,min-state = <4>;
>  	};
>  };
> 
> -- 
> 2.33.0



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