Merge branch 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / arm / arm,scmi.txt

diff --git a/Documentation/devicetree/bindings/arm/arm,scmi.txt b/Documentation/devicetree/bindings/arm/arm,scmi.txt
index 55deb68..b5ce5b3 100644 (file)
--- a/Documentation/devicetree/bindings/arm/arm,scmi.txt
+++ b/Documentation/devicetree/bindings/arm/arm,scmi.txt
@@ -62,6 +62,20 @@ Required properties:
  - #power-domain-cells : Should be 1. Contains the device or the power
                         domain ID value used by SCMI commands.
 
+Regulator bindings for the SCMI Regulator based on SCMI Message Protocol
+------------------------------------------------------------
+An SCMI Regulator is permanently bound to a well defined SCMI Voltage Domain,
+and should be always positioned as a root regulator.
+It does not support any current operation.
+
+SCMI Regulators are grouped under a 'regulators' node which in turn is a child
+of the SCMI Voltage protocol node inside the desired SCMI instance node.
+
+This binding uses the common regulator binding[6].
+
+Required properties:
+ - reg : shall identify an existent SCMI Voltage Domain.
+
 Sensor bindings for the sensors based on SCMI Message Protocol
 --------------------------------------------------------------
 SCMI provides an API to access the various sensors on the SoC.
@@ -105,6 +119,7 @@ Required sub-node properties:
 [3] Documentation/devicetree/bindings/thermal/thermal*.yaml
 [4] Documentation/devicetree/bindings/sram/sram.yaml
 [5] Documentation/devicetree/bindings/reset/reset.txt
+[6] Documentation/devicetree/bindings/regulator/regulator.yaml
 
 Example:
 
@@ -169,6 +184,25 @@ firmware {
                        reg = <0x16>;
                        #reset-cells = <1>;
                };
+
+               scmi_voltage: protocol@17 {
+                       reg = <0x17>;
+
+                       regulators {
+                               regulator_devX: regulator@0 {
+                                       reg = <0x0>;
+                                       regulator-max-microvolt = <3300000>;
+                               };
+
+                               regulator_devY: regulator@9 {
+                                       reg = <0x9>;
+                                       regulator-min-microvolt = <500000>;
+                                       regulator-max-microvolt = <4200000>;
+                               };
+
+                               ...
+                       };
+               };
        };
 };