Add qcom-opp bindings with properties needed for Core Power Reduction (CPR). CPR is included in a great variety of Qualcomm SoC, e.g. msm8916 and msm8996, and was first introduced in msm8974. Co-developed-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@xxxxxxxxxx> Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@xxxxxxxxxx> Signed-off-by: Niklas Cassel <niklas.cassel@xxxxxxxxxx> --- .../devicetree/bindings/opp/qcom-opp.txt | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/opp/qcom-opp.txt diff --git a/Documentation/devicetree/bindings/opp/qcom-opp.txt b/Documentation/devicetree/bindings/opp/qcom-opp.txt new file mode 100644 index 000000000000..d24280467db7 --- /dev/null +++ b/Documentation/devicetree/bindings/opp/qcom-opp.txt @@ -0,0 +1,24 @@ +Qualcomm OPP bindings to describe OPP nodes + +The bindings are based on top of the operating-points-v2 bindings +described in Documentation/devicetree/bindings/opp/opp.txt +Additional properties are described below. + +* OPP Table Node + +Required properties: +- compatible: Allow OPPs to express their compatibility. It should be: + "operating-points-v2-qcom-level" + +* OPP Node + +Optional properties: +- opp-hz: Frequency in Hz, expressed as a 64-bit big-endian integer. Even + though a power domain doesn't need a opp-hz, there can be devices in the + power domain that need to know the highest supported frequency for each + corner/level (e.g. CPR), in order to properly initialize the hardware. + +- qcom,opp-fuse-level: A positive value representing the fuse corner/level + associated with this OPP node. Sometimes several corners/levels shares + a certain fuse corner/level. A fuse corner/level contains e.g. ref uV, + min uV, and max uV. -- 2.20.1
