linux-kernel - [PATCH] arm64: dts: qcom: sc7280: Update gpu opp table

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Date:   Mon, 29 Aug 2022 01:10:55 +0530
From:   Akhil P Oommen <quic_akhilpo@...cinc.com>
To:     freedreno <freedreno@...ts.freedesktop.org>,
        <linux-arm-msm@...r.kernel.org>,
        "OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, Rob Clark <robdclark@...il.com>,
        "Bjorn Andersson" <bjorn.andersson@...aro.org>
CC:     Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] arm64: dts: qcom: sc7280: Update gpu opp table

On the lite sku where GPU Fmax is 550Mhz, voting for a slightly higher
bandwidth at the highest gpu opp helps to improve "Manhattan offscreen"
score by 10%. Update the gpu opp table such that this is applicable only
on SKUs which has 550Mhz as GPU Fmax.

Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
---

 arch/arm64/boot/dts/qcom/sc7280.dtsi | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 13d7f26..5a16592 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -2352,11 +2352,19 @@
 					opp-supported-hw = <0x03>;
 				};
 
-				opp-550000000 {
+				/* Only applicable for SKUs which has 550Mhz as Fmax */
+				opp-550000000-0 {
+					opp-hz = /bits/ 64 <550000000>;
+					opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
+					opp-peak-kBps = <8368000>;
+					opp-supported-hw = <0x01>;
+				};
+
+				opp-550000000-1 {
 					opp-hz = /bits/ 64 <550000000>;
 					opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
 					opp-peak-kBps = <6832000>;
-					opp-supported-hw = <0x03>;
+					opp-supported-hw = <0x02>;
 				};
 
 				opp-608000000 {
-- 
2.7.4