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@chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.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