[08/13] dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR

Message ID 20190705095726.21433-9-niklas.cassel@linaro.org
State New
Headers show
  • Add support for QCOM Core Power Reduction
Related show

Commit Message

Niklas Cassel July 5, 2019, 9:57 a.m.
Add qcom-opp bindings with properties needed for Core Power Reduction

CPR is included in a great variety of Qualcomm SoCs, e.g. msm8916 and
msm8996. CPR was first introduced in msm8974.

Changes since RFC:
-Removed opp-hz. It is already an optional property in opp.txt
so no need to specify it with the same definition here.

Co-developed-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>

Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>

 .../devicetree/bindings/opp/qcom-opp.txt      | 19 +++++++++++++++++++
 1 file changed, 19 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..f204685d029c
--- /dev/null
+++ b/Documentation/devicetree/bindings/opp/qcom-opp.txt
@@ -0,0 +1,19 @@ 
+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:
+- 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.