On some SoCs (especially from Qualcomm and MediaTek) an OPP node needs to describe an additional level/corner value that is then communicated to a remote microprocessor by the CPU, which then takes some actions (like adjusting voltage values across variousi rails) based on the value passed. Add opp-level as an additional property in the OPP node and describe it in the OPP bindings document. Signed-off-by: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx> --- Documentation/devicetree/bindings/opp/opp.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt index c396c4c0af92..e83fb7cbfd58 100644 --- a/Documentation/devicetree/bindings/opp/opp.txt +++ b/Documentation/devicetree/bindings/opp/opp.txt @@ -129,6 +129,11 @@ Optional properties: - opp-microamp-<name>: Named opp-microamp property. Similar to opp-microvolt-<name> property, but for microamp instead. +- opp-level: On some SoC platforms an OPP node can describe a positive value + representing a corner/level that's communicated with a remote microprocessor + (usually called the power manager) which then translates it into a certain + voltage on a voltage rail. + - clock-latency-ns: Specifies the maximum possible transition latency (in nanoseconds) for switching to this OPP from any other OPP. -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
