diff mbox series

[v4,1/3] dt-bindings: cpufreq: cpufreq-qcom-hw: Add cpufreq clock provider

Message ID 20221102090818.65321-2-manivannan.sadhasivam@linaro.org (mailing list archive)
State Superseded
Headers show
Series qcom-cpufreq-hw: Add CPU clock provider support | expand

Commit Message

Manivannan Sadhasivam Nov. 2, 2022, 9:08 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 24fa3d87a40b..9ac8ad5b71b5 100644
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
@@ -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";
           next-level-cache = <&L3_0>;
@@ -99,6 +103,7 @@  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>;
@@ -112,6 +117,7 @@  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>;
@@ -125,6 +131,7 @@  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>;
@@ -138,6 +145,7 @@  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>;
@@ -151,6 +159,7 @@  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>;
@@ -164,6 +173,7 @@  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>;
@@ -177,6 +187,7 @@  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>;
@@ -197,6 +208,7 @@  examples:
         clock-names = "xo", "alternate";
 
         #freq-domain-cells = <1>;
+        #clock-cells = <1>;
       };
     };
 ...