dt-bindings: drm/msm/gpu: Document gpu opp table

Update documentation to list the gpu opp table bindings including the
newly added "opp-peak-kBps" needed for GPU-DDR bandwidth scaling.

Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

diff --git a/Documentation/devicetree/bindings/display/msm/gpu.txt b/Documentation/devicetree/bindings/display/msm/gpu.txt
index fd779cd..1af0ff1 100644 (file)
--- a/Documentation/devicetree/bindings/display/msm/gpu.txt
+++ b/Documentation/devicetree/bindings/display/msm/gpu.txt
@@ -112,6 +112,34 @@ Example a6xx (with GMU):
                interconnects = <&rsc_hlos MASTER_GFX3D &rsc_hlos SLAVE_EBI1>;
                interconnect-names = "gfx-mem";
 
+               gpu_opp_table: opp-table {
+                       compatible = "operating-points-v2";
+
+                       opp-430000000 {
+                               opp-hz = /bits/ 64 <430000000>;
+                               opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
+                               opp-peak-kBps = <5412000>;
+                       };
+
+                       opp-355000000 {
+                               opp-hz = /bits/ 64 <355000000>;
+                               opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
+                               opp-peak-kBps = <3072000>;
+                       };
+
+                       opp-267000000 {
+                               opp-hz = /bits/ 64 <267000000>;
+                               opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
+                               opp-peak-kBps = <3072000>;
+                       };
+
+                       opp-180000000 {
+                               opp-hz = /bits/ 64 <180000000>;
+                               opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
+                               opp-peak-kBps = <1804000>;
+                       };
+               };
+
                qcom,gmu = <&gmu>;
 
                zap-shader {