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dt-bindings: cpufreq: cpufreq-qcom-hw: Add cpufreq clock provider

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Qualcomm platforms making use of CPUFreq HW Engine (EPSS/OSM) supply clocks
to the CPU cores. Document the same in the binding to reflect the actual
implementation.

CPUFreq HW will become the clock provider and CPU cores will become the
clock consumers.

The clock index for each CPU core is based on the frequency domain index.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Manivannan Sadhasivam
2022-11-17 11:01:42 +05:30
committed by Viresh Kumar
parent c72cf0cb1d
commit f9281ab6b8
1 changed files with 12 additions and 0 deletions
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12
Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
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@@ -56,6 +56,9 @@ properties:
'#freq-domain-cells':
const: 1
'#clock-cells':
const: 1
required:
- compatible
- reg
@@ -83,6 +86,7 @@ examples:
enable-method = "psci";
next-level-cache = <&L2_0>;
qcom,freq-domain = <&cpufreq_hw 0>;
clocks = <&cpufreq_hw 0>;
L2_0: l2-cache {
compatible = "cache";
cache-unified;
@@ -103,6 +107,7 @@ examples:
enable-method = "psci";
next-level-cache = <&L2_100>;
qcom,freq-domain = <&cpufreq_hw 0>;
clocks = <&cpufreq_hw 0>;
L2_100: l2-cache {
compatible = "cache";
cache-unified;
@@ -118,6 +123,7 @@ examples:
enable-method = "psci";
next-level-cache = <&L2_200>;
qcom,freq-domain = <&cpufreq_hw 0>;
clocks = <&cpufreq_hw 0>;
L2_200: l2-cache {
compatible = "cache";
cache-unified;
@@ -133,6 +139,7 @@ examples:
enable-method = "psci";
next-level-cache = <&L2_300>;
qcom,freq-domain = <&cpufreq_hw 0>;
clocks = <&cpufreq_hw 0>;
L2_300: l2-cache {
compatible = "cache";
cache-unified;
@@ -148,6 +155,7 @@ examples:
enable-method = "psci";
next-level-cache = <&L2_400>;
qcom,freq-domain = <&cpufreq_hw 1>;
clocks = <&cpufreq_hw 1>;
L2_400: l2-cache {
compatible = "cache";
cache-unified;
@@ -163,6 +171,7 @@ examples:
enable-method = "psci";
next-level-cache = <&L2_500>;
qcom,freq-domain = <&cpufreq_hw 1>;
clocks = <&cpufreq_hw 1>;
L2_500: l2-cache {
compatible = "cache";
cache-unified;
@@ -178,6 +187,7 @@ examples:
enable-method = "psci";
next-level-cache = <&L2_600>;
qcom,freq-domain = <&cpufreq_hw 1>;
clocks = <&cpufreq_hw 1>;
L2_600: l2-cache {
compatible = "cache";
cache-unified;
@@ -193,6 +203,7 @@ examples:
enable-method = "psci";
next-level-cache = <&L2_700>;
qcom,freq-domain = <&cpufreq_hw 1>;
clocks = <&cpufreq_hw 1>;
L2_700: l2-cache {
compatible = "cache";
cache-unified;
@@ -215,6 +226,7 @@ examples:
clock-names = "xo", "alternate";
#freq-domain-cells = <1>;
#clock-cells = <1>;
};
};
...