[PATCH] arm64: dts: mt8183: Enable CPU idle-states

Matthias Brugger matthias.bgg at gmail.com
Fri Jun 21 09:14:11 PDT 2019



On 29/05/2019 10:25, James Liao wrote:
> Enable mcdi-cpu and mcdi-cluster on MT8183 CPUs.
> 
> Signed-off-by: James Liao <jamesjj.liao at mediatek.com>

Would you mind to rebase and resend?

Regards,
Matthias

> ---
> This patch bases on v5.1-rc1 and [1], adds idle-states for MT8183 CPUs.
> 
> [1] https://patchwork.kernel.org/patch/10962375/
> 
>  arch/arm64/boot/dts/mediatek/mt8183.dtsi | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index 08274bf..ef4b054 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -56,6 +56,7 @@
>  			compatible = "arm,cortex-a53";
>  			reg = <0x000>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
>  		};
>  
>  		cpu1: cpu at 1 {
> @@ -63,6 +64,7 @@
>  			compatible = "arm,cortex-a53";
>  			reg = <0x001>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
>  		};
>  
>  		cpu2: cpu at 2 {
> @@ -70,6 +72,7 @@
>  			compatible = "arm,cortex-a53";
>  			reg = <0x002>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
>  		};
>  
>  		cpu3: cpu at 3 {
> @@ -77,6 +80,7 @@
>  			compatible = "arm,cortex-a53";
>  			reg = <0x003>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
>  		};
>  
>  		cpu4: cpu at 100 {
> @@ -84,6 +88,7 @@
>  			compatible = "arm,cortex-a73";
>  			reg = <0x100>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
>  		};
>  
>  		cpu5: cpu at 101 {
> @@ -91,6 +96,7 @@
>  			compatible = "arm,cortex-a73";
>  			reg = <0x101>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
>  		};
>  
>  		cpu6: cpu at 102 {
> @@ -98,6 +104,7 @@
>  			compatible = "arm,cortex-a73";
>  			reg = <0x102>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
>  		};
>  
>  		cpu7: cpu at 103 {
> @@ -105,6 +112,29 @@
>  			compatible = "arm,cortex-a73";
>  			reg = <0x103>;
>  			enable-method = "psci";
> +			cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
> +		};
> +
> +		idle-states {
> +			entry-method = "arm,psci";
> +
> +			MCDI_CPU: mcdi-cpu {
> +				compatible = "arm,idle-state";
> +				local-timer-stop;
> +				arm,psci-suspend-param = <0x00010001>;
> +				entry-latency-us = <200>;
> +				exit-latency-us = <200>;
> +				min-residency-us = <800>;
> +			};
> +
> +			MCDI_CLUSTER: mcdi-cluster {
> +				compatible = "arm,idle-state";
> +				local-timer-stop;
> +				arm,psci-suspend-param = <0x01010001>;
> +				entry-latency-us = <250>;
> +				exit-latency-us = <400>;
> +				min-residency-us = <1300>;
> +			};
>  		};
>  	};
>  
> 



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