On Fri, Nov 26, 2021 at 12:15 PM Daniel Lezcano
<daniel.lezcano@xxxxxxxxxx> wrote:
>
> Add the powerzones description. This first step introduces the big,
> the little and the gpu as a powerzone place.
>
> Cc: Robin Murphy <robin.murphy@xxxxxxx>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
> ---
> V1: Initial post
> V2:
> - Move description in the SoC dtsi specific file
> ---
> arch/arm64/boot/dts/rockchip/rk3399.dtsi | 25 ++++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> index d3cdf6f42a30..3c0dbc0cb2bc 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> @@ -76,6 +76,8 @@ cpu_l0: cpu@0 {
> #cooling-cells = <2>; /* min followed by max */
> dynamic-power-coefficient = <100>;
> cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
> + #powerzone-cells = <0>;
> + powerzone = <&PKG_PZ>;
> };
>
> cpu_l1: cpu@1 {
> @@ -88,6 +90,8 @@ cpu_l1: cpu@1 {
> #cooling-cells = <2>; /* min followed by max */
> dynamic-power-coefficient = <100>;
> cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
> + #powerzone-cells = <0>;
> + powerzone = <&PKG_PZ>;
> };
>
> cpu_l2: cpu@2 {
> @@ -100,6 +104,8 @@ cpu_l2: cpu@2 {
> #cooling-cells = <2>; /* min followed by max */
> dynamic-power-coefficient = <100>;
> cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
> + #powerzone-cells = <0>;
> + powerzone = <&PKG_PZ>;
> };
>
> cpu_l3: cpu@3 {
> @@ -112,6 +118,8 @@ cpu_l3: cpu@3 {
> #cooling-cells = <2>; /* min followed by max */
> dynamic-power-coefficient = <100>;
> cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
> + #powerzone-cells = <0>;
> + powerzone = <&PKG_PZ>;
> };
>
> cpu_b0: cpu@100 {
> @@ -124,6 +132,8 @@ cpu_b0: cpu@100 {
> #cooling-cells = <2>; /* min followed by max */
> dynamic-power-coefficient = <436>;
> cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
> + #powerzone-cells = <0>;
> + powerzone = <&PKG_PZ>;
>
> thermal-idle {
> #cooling-cells = <2>;
> @@ -142,6 +152,8 @@ cpu_b1: cpu@101 {
> #cooling-cells = <2>; /* min followed by max */
> dynamic-power-coefficient = <436>;
> cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
> + #powerzone-cells = <0>;
> + powerzone = <&PKG_PZ>;
>
> thermal-idle {
> #cooling-cells = <2>;
> @@ -791,6 +803,17 @@ spi5: spi@ff200000 {
> status = "disabled";
> };
>
> + powerzones {
> +
> + PKG_PZ: pkg {
> + #powerzone-cells = <0>;
> + powerzone = <&SOC_PZ>;
> + };
> +
> + SOC_PZ: soc {
> + };
> + };
> +
> thermal_zones: thermal-zones {
> cpu_thermal: cpu-thermal {
> polling-delay-passive = <100>;
> @@ -2027,6 +2050,8 @@ gpu: gpu@ff9a0000 {
> clocks = <&cru ACLK_GPU>;
> #cooling-cells = <2>;
> power-domains = <&power RK3399_PD_GPU>;
> + #powerzone-cells = <0>;
> + powerzone = <&PKG_PZ>;
Every CPU and the GPU are in the same powerzone. What is the point? Do
you really have to be told that CPUs and GPU are a source of heat and
might need to be limited?
Rob
