On 15.02.2023 08:03, Manivannan Sadhasivam wrote:
> Qualcomm platforms making use of CPUFreq HW Engine (EPSS/OSM) supply clocks
> to the CPU cores. But this relationship is not represented in DTS so far.
>
> So let's make cpufreq node as the clock provider and CPU nodes as the
> consumers. The clock index for each CPU node is based on the frequency
> domain index.
>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Konrad
> arch/arm64/boot/dts/qcom/sc7280.dtsi | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index bdcb74925313..d9b6e028cdac 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -168,6 +168,7 @@ CPU0: cpu@0 {
> device_type = "cpu";
> compatible = "qcom,kryo";
> reg = <0x0 0x0>;
> + clocks = <&cpufreq_hw 0>;
> enable-method = "psci";
> cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> &LITTLE_CPU_SLEEP_1
> @@ -193,6 +194,7 @@ CPU1: cpu@100 {
> device_type = "cpu";
> compatible = "qcom,kryo";
> reg = <0x0 0x100>;
> + clocks = <&cpufreq_hw 0>;
> enable-method = "psci";
> cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> &LITTLE_CPU_SLEEP_1
> @@ -214,6 +216,7 @@ CPU2: cpu@200 {
> device_type = "cpu";
> compatible = "qcom,kryo";
> reg = <0x0 0x200>;
> + clocks = <&cpufreq_hw 0>;
> enable-method = "psci";
> cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> &LITTLE_CPU_SLEEP_1
> @@ -235,6 +238,7 @@ CPU3: cpu@300 {
> device_type = "cpu";
> compatible = "qcom,kryo";
> reg = <0x0 0x300>;
> + clocks = <&cpufreq_hw 0>;
> enable-method = "psci";
> cpu-idle-states = <&LITTLE_CPU_SLEEP_0
> &LITTLE_CPU_SLEEP_1
> @@ -256,6 +260,7 @@ CPU4: cpu@400 {
> device_type = "cpu";
> compatible = "qcom,kryo";
> reg = <0x0 0x400>;
> + clocks = <&cpufreq_hw 1>;
> enable-method = "psci";
> cpu-idle-states = <&BIG_CPU_SLEEP_0
> &BIG_CPU_SLEEP_1
> @@ -277,6 +282,7 @@ CPU5: cpu@500 {
> device_type = "cpu";
> compatible = "qcom,kryo";
> reg = <0x0 0x500>;
> + clocks = <&cpufreq_hw 1>;
> enable-method = "psci";
> cpu-idle-states = <&BIG_CPU_SLEEP_0
> &BIG_CPU_SLEEP_1
> @@ -298,6 +304,7 @@ CPU6: cpu@600 {
> device_type = "cpu";
> compatible = "qcom,kryo";
> reg = <0x0 0x600>;
> + clocks = <&cpufreq_hw 1>;
> enable-method = "psci";
> cpu-idle-states = <&BIG_CPU_SLEEP_0
> &BIG_CPU_SLEEP_1
> @@ -319,6 +326,7 @@ CPU7: cpu@700 {
> device_type = "cpu";
> compatible = "qcom,kryo";
> reg = <0x0 0x700>;
> + clocks = <&cpufreq_hw 2>;
> enable-method = "psci";
> cpu-idle-states = <&BIG_CPU_SLEEP_0
> &BIG_CPU_SLEEP_1
> @@ -5337,6 +5345,7 @@ cpufreq_hw: cpufreq@18591000 {
> clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_GPLL0>;
> clock-names = "xo", "alternate";
> #freq-domain-cells = <1>;
> + #clock-cells = <1>;
> };
> };
>
