[PATCH v11 1/9] dt-bindings: opp: Introduce opp-level bindings

[Rajendra Nayak]

Add opp-level as an additional property in the OPP node to describe
the performance level of the device.

On some SoCs (especially from Qualcomm and MediaTek) this value
is communicated to a remote microprocessor by the CPU, which
then takes some actions (like adjusting voltage values across various
rails) based on the value passed.

Signed-off-by: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/opp/opp.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt
index c396c4c0af92..76b6c79604a5 100644
--- a/Documentation/devicetree/bindings/opp/opp.txt
+++ b/Documentation/devicetree/bindings/opp/opp.txt
@@ -129,6 +129,9 @@ Optional properties:
 - opp-microamp-<name>: Named opp-microamp property. Similar to
   opp-microvolt-<name> property, but for microamp instead.
 
+- opp-level: A value representing the performance level of the device,
+  expressed as a 32-bit integer.
+
 - clock-latency-ns: Specifies the maximum possible transition latency (in
   nanoseconds) for switching to this OPP from any other OPP.
 
-- 
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