diff mbox series

[v2,1/7] dt-bindings: cpufreq: cpufreq-qcom-hw: Add cpufreq clock provider

Message ID 20221025073254.1564622-2-manivannan.sadhasivam@linaro.org (mailing list archive)
State New, archived
Delegated to: viresh kumar
Headers show
Series qcom-cpufreq-hw: Add CPU clock provider support | expand

Commit Message

Manivannan Sadhasivam Oct. 25, 2022, 7:32 a.m. UTC 
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>
---
 .../devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml | 12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
index cbba8979fe0e..2e0336163ffb 100644
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
@@ -57,6 +57,9 @@  properties:
   '#freq-domain-cells':
     const: 1
 
+  '#clock-cells':
+    const: 1
+
 required:
   - compatible
   - reg
@@ -84,6 +87,7 @@  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";
           next-level-cache = <&L3_0>;
@@ -100,6 +104,7 @@  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";
           next-level-cache = <&L3_0>;
@@ -113,6 +118,7 @@  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";
           next-level-cache = <&L3_0>;
@@ -126,6 +132,7 @@  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";
           next-level-cache = <&L3_0>;
@@ -139,6 +146,7 @@  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";
           next-level-cache = <&L3_0>;
@@ -152,6 +160,7 @@  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";
           next-level-cache = <&L3_0>;
@@ -165,6 +174,7 @@  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";
           next-level-cache = <&L3_0>;
@@ -178,6 +188,7 @@  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";
           next-level-cache = <&L3_0>;
@@ -198,6 +209,7 @@  examples:
         clock-names = "xo", "alternate";
 
         #freq-domain-cells = <1>;
+        #clock-cells = <1>;
       };
     };
 ...