[PATCH] arm64: dts: hi3660: Add property for fixing CPUIdle

[Wei Xu]

Hi Leo,

On 2025/3/10 17:37, Leo Yan wrote:
> During CPU low power modes, ETM components will lose their context.  Add
> the "arm,coresight-loses-context-with-cpu" property to ETM nodes to save
> and restore ETM context for CPU idle states.
> 
> Signed-off-by: Leo Yan <leo.yan at arm.com>
> ---

Applied to the HiSilicon arm64 dt tree.
Thanks!

Best Regards,
Wei

>  arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi
> index 79a55a0fa2f1..4c6a075908d1 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi
> @@ -17,6 +17,7 @@ etm at ecc40000 {
>  			clocks = <&crg_ctrl HI3660_PCLK>;
>  			clock-names = "apb_pclk";
>  			cpu = <&cpu0>;
> +			arm,coresight-loses-context-with-cpu;
>  
>  			out-ports {
>  				port {
> @@ -34,6 +35,7 @@ etm at ecd40000 {
>  			clocks = <&crg_ctrl HI3660_PCLK>;
>  			clock-names = "apb_pclk";
>  			cpu = <&cpu1>;
> +			arm,coresight-loses-context-with-cpu;
>  
>  			out-ports {
>  				port {
> @@ -51,6 +53,7 @@ etm at ece40000 {
>  			clocks = <&crg_ctrl HI3660_PCLK>;
>  			clock-names = "apb_pclk";
>  			cpu = <&cpu2>;
> +			arm,coresight-loses-context-with-cpu;
>  
>  			out-ports {
>  				port {
> @@ -68,6 +71,7 @@ etm at ecf40000 {
>  			clocks = <&crg_ctrl HI3660_PCLK>;
>  			clock-names = "apb_pclk";
>  			cpu = <&cpu3>;
> +			arm,coresight-loses-context-with-cpu;
>  
>  			out-ports {
>  				port {
> @@ -160,6 +164,7 @@ etm at ed440000 {
>  			clocks = <&crg_ctrl HI3660_PCLK>;
>  			clock-names = "apb_pclk";
>  			cpu = <&cpu4>;
> +			arm,coresight-loses-context-with-cpu;
>  
>  			out-ports {
>  				port {
> @@ -177,6 +182,7 @@ etm at ed540000 {
>  			clocks = <&crg_ctrl HI3660_PCLK>;
>  			clock-names = "apb_pclk";
>  			cpu = <&cpu5>;
> +			arm,coresight-loses-context-with-cpu;
>  
>  			out-ports {
>  				port {
> @@ -194,6 +200,7 @@ etm at ed640000 {
>  			clocks = <&crg_ctrl HI3660_PCLK>;
>  			clock-names = "apb_pclk";
>  			cpu = <&cpu6>;
> +			arm,coresight-loses-context-with-cpu;
>  
>  			out-ports {
>  				port {
> @@ -211,6 +218,7 @@ etm at ed740000 {
>  			clocks = <&crg_ctrl HI3660_PCLK>;
>  			clock-names = "apb_pclk";
>  			cpu = <&cpu7>;
> +			arm,coresight-loses-context-with-cpu;
>  
>  			out-ports {
>  				port {
>