linux-kernel - [PATCH v2 1/6] arm64: dts: qcom: sc7280: Enable MDP turbo mode

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Message-ID: <20240326-rb3gen2-dp-connector-v2-1-a9f1bc32ecaf@quicinc.com>
Date: Tue, 26 Mar 2024 19:04:18 -0700
From: Bjorn Andersson <quic_bjorande@...cinc.com>
To: <cros-qcom-dts-watchers@...omium.org>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Catalin Marinas
	<catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Dmitry Baryshkov
	<dmitry.baryshkov@...aro.org>
CC: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        Douglas Anderson <dianders@...omium.org>,
        Abhinav Kumar
	<quic_abhinavk@...cinc.com>,
        Bjorn Andersson <quic_bjorande@...cinc.com>
Subject: [PATCH v2 1/6] arm64: dts: qcom: sc7280: Enable MDP turbo mode

The max frequency listed in the DPU opp-table is 506MHz, this is not
sufficient to drive a 4k@60 display, resulting in constant underrun.

Add the missing MDP_CLK turbo frequency of 608MHz to the opp-table to
fix this.

Acked-by: Douglas Anderson <dianders@...omium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 41f51d326111..261d2d431faa 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -4458,6 +4458,11 @@ opp-506666667 {
 						opp-hz = /bits/ 64 <506666667>;
 						required-opps = <&rpmhpd_opp_nom>;
 					};
+
+					opp-608000000 {
+						opp-hz = /bits/ 64 <608000000>;
+						required-opps = <&rpmhpd_opp_turbo>;
+					};
 				};
 			};
 

-- 
2.25.1