Commit 338bdbcc authored by Sharat Masetty's avatar Sharat Masetty Committed by Bjorn Andersson
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arm64: dts: qcom: SDM845: Enable GPU DDR bw scaling 



This patch adds the interconnects property for the gpu node and the
opp-peak-kBps property to the opps of the gpu opp table. This should
help enable DDR bandwidth scaling dynamically and proportionally to the
GPU frequency.

Signed-off-by: default avatarSharat Masetty <smasetty@codeaurora.org>
Signed-off-by: default avatarAkhil P Oommen <akhilpo@codeaurora.org>
Link: https://lore.kernel.org/r/1594992579-20662-5-git-send-email-akhilpo@codeaurora.org


Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 8aa6ac22

arch/arm64/boot/dts/qcom/sdm845.dtsi

+10 −0
Original line number Diff line number Diff line
@@ -4007,42 +4007,52 @@ 


			qcom,gmu = <&gmu>;



			interconnects = <&mem_noc MASTER_GFX3D &mem_noc SLAVE_EBI1>;

			interconnect-names = "gfx-mem";



			gpu_opp_table: opp-table {

				compatible = "operating-points-v2";



				opp-710000000 {

					opp-hz = /bits/ 64 <710000000>;

					opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;

					opp-peak-kBps = <7216000>;

				};



				opp-675000000 {

					opp-hz = /bits/ 64 <675000000>;

					opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;

					opp-peak-kBps = <7216000>;

				};



				opp-596000000 {

					opp-hz = /bits/ 64 <596000000>;

					opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;

					opp-peak-kBps = <6220000>;

				};



				opp-520000000 {

					opp-hz = /bits/ 64 <520000000>;

					opp-level = <RPMH_REGULATOR_LEVEL_NOM>;

					opp-peak-kBps = <6220000>;

				};



				opp-414000000 {

					opp-hz = /bits/ 64 <414000000>;

					opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;

					opp-peak-kBps = <4068000>;

				};



				opp-342000000 {

					opp-hz = /bits/ 64 <342000000>;

					opp-level = <RPMH_REGULATOR_LEVEL_SVS>;

					opp-peak-kBps = <2724000>;

				};



				opp-257000000 {

					opp-hz = /bits/ 64 <257000000>;

					opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;

					opp-peak-kBps = <1648000>;

				};

			};

		};