Re: [PATCH] arm64: dts: mediatek: mt8173 PSCI-1.0 support

[Matthias Brugger]

On 28/08/15 04:11, fan.chen@xxxxxxxxxxxx wrote:
> From: Fan Chen <fan.chen@xxxxxxxxxxxx>
>
> This patch adds psci comatible properties to support all mandatory
> functions of PSCI-1.0, PSCI-0.2 and PSCI-0.1, and system suspend
> can be supported in PSCI-1.0.
>
> Signed-off-by: Fan Chen <fan.chen@xxxxxxxxxxxx>
> ---
> Because PSCI-1.0 patches hadn't landed on mainline, this patch is
> based on three patch sets below:
> [0] http://www.spinics.net/lists/arm-kernel/msg425793.html
>      PSCI: system suspend support
> [1] git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
>      psci/unification
> [2] http://www.spinics.net/lists/devicetree/msg82017.html
>      [PATCH 0/6] drivers: firmware: psci: add basic v1.0 support
>
> Before they are merged in, this patch still works fine with psci-0.2
> support in current mainline.
> ---
>   arch/arm64/boot/dts/mediatek/mt8173.dtsi |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> index d18ee42..b9b4205 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> @@ -95,7 +95,7 @@
>   	};
>
>   	psci {
> -		compatible = "arm,psci";
> +		compatible = "arm,psci-1.0", "arm,psci-0.2", "arm,psci";

As this binding is not yet upstream, I prefer not to take the patch. 
Most probably the binding will have the name you indicated, but as DTS 
bindings are representing an external API, we should be really careful 
in changing them.

Cheers,
Matthias

>   		method = "smc";
>   		cpu_suspend   = <0x84000001>;
>   		cpu_off	      = <0x84000002>;
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