linux-kernel - [PATCH] arm64: dts: qcom: sc7280: Add support for two additional DDR frequencies

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Message-Id: <20250701074334.1782967-1-quic_pussin@quicinc.com>
Date: Tue,  1 Jul 2025 13:13:34 +0530
From: Pushpendra Singh <quic_pussin@...cinc.com>
To: cros-qcom-dts-watchers@...omium.org, andersson@...nel.org,
        konradybcio@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Pushpendra Singh <quic_pussin@...cinc.com>, kernel@...cinc.com
Subject: [PATCH] arm64: dts: qcom: sc7280: Add support for two additional DDR frequencies

Cc: kernel@...cinc.com, kernel@....qualcomm.com

The SC7280 SoC now supports two additional frequencies. This patch
add those frequencies to the BWMON OPP table and updates the frequency
mapping table accordingly.

These changes do not impact existing platforms, as the updated mapping
only affects the highest OPP. On any given platform, this will continue
to vote for the maximum available OPP.

Change-Id: Id3a91e065c49848d9af18e5c3edee0836cb693e5
Signed-off-by: Pushpendra Singh <quic_pussin@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 64a2abd30100..cb945abf0475 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -620,12 +620,12 @@ cpu4_opp_2208mhz: opp-2208000000 {
 
 		cpu4_opp_2400mhz: opp-2400000000 {
 			opp-hz = /bits/ 64 <2400000000>;
-			opp-peak-kBps = <8532000 48537600>;
+			opp-peak-kBps = <12787200 48537600>;
 		};
 
 		cpu4_opp_2611mhz: opp-2611200000 {
 			opp-hz = /bits/ 64 <2611200000>;
-			opp-peak-kBps = <8532000 48537600>;
+			opp-peak-kBps = <12787200 48537600>;
 		};
 	};
 
@@ -685,22 +685,22 @@ cpu7_opp_2381mhz: opp-2380800000 {
 
 		cpu7_opp_2400mhz: opp-2400000000 {
 			opp-hz = /bits/ 64 <2400000000>;
-			opp-peak-kBps = <8532000 48537600>;
+			opp-peak-kBps = <12787200 48537600>;
 		};
 
 		cpu7_opp_2515mhz: opp-2515200000 {
 			opp-hz = /bits/ 64 <2515200000>;
-			opp-peak-kBps = <8532000 48537600>;
+			opp-peak-kBps = <12787200 48537600>;
 		};
 
 		cpu7_opp_2707mhz: opp-2707200000 {
 			opp-hz = /bits/ 64 <2707200000>;
-			opp-peak-kBps = <8532000 48537600>;
+			opp-peak-kBps = <12787200 48537600>;
 		};
 
 		cpu7_opp_3014mhz: opp-3014400000 {
 			opp-hz = /bits/ 64 <3014400000>;
-			opp-peak-kBps = <8532000 48537600>;
+			opp-peak-kBps = <12787200 48537600>;
 		};
 	};
 
@@ -4013,6 +4013,12 @@ opp-6 {
 				opp-7 {
 					opp-peak-kBps = <8532000>;
 				};
+				opp-8 {
+					opp-peak-kBps = <10944000>;
+				};
+				opp-9 {
+					opp-peak-kBps = <12787200>;
+				};
 			};
 		};
 
-- 
2.34.1