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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>,
	Frank Li <Frank.Li@nxp.com>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.10.y 6/7] Revert "arm64: dts: imx8mq-librem5: Set the DVS voltages lower"
Date: Mon, 13 Apr 2026 10:58:03 -0400	[thread overview]
Message-ID: <20260413145804.2968471-6-sashal@kernel.org> (raw)
In-Reply-To: <20260413145804.2968471-1-sashal@kernel.org>

From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>

[ Upstream commit 4cd46ea0eb4504f7f4fea92cb4601c5c9a3e545e ]

This reverts commit c24a9b698fb02cd0723fa8375abab07f94b97b10.

It's been found that there's a significant per-unit variance in accepted
supply voltages and the current set still makes some units unstable.

Revert back to nominal values.

Cc: stable@vger.kernel.org
Fixes: c24a9b698fb0 ("arm64: dts: imx8mq-librem5: Set the DVS voltages lower")
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Stable-dep-of: 511f76bf1dce ("arm64: dts: imx8mq-librem5: Bump BUCK1 suspend voltage up to 0.85V")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../boot/dts/freescale/imx8mq-librem5-r3.dts  |  2 +-
 .../boot/dts/freescale/imx8mq-librem5.dtsi    | 22 +++++--------------
 2 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
index 425f4ef7cb2dd..cd3c3edd48fa3 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
@@ -12,7 +12,7 @@ / {
 
 &a53_opp_table {
 	opp-1000000000 {
-		opp-microvolt = <950000>;
+		opp-microvolt = <1000000>;
 	};
 };
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 2f9bb8d042e38..251504dba3f04 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -651,8 +651,8 @@ buck1_reg: BUCK1 {
 				regulator-max-microvolt = <1300000>;
 				regulator-boot-on;
 				regulator-ramp-delay = <1250>;
-				rohm,dvs-run-voltage = <880000>;
-				rohm,dvs-idle-voltage = <820000>;
+				rohm,dvs-run-voltage = <900000>;
+				rohm,dvs-idle-voltage = <850000>;
 				rohm,dvs-suspend-voltage = <810000>;
 				regulator-always-on;
 			};
@@ -663,8 +663,8 @@ buck2_reg: BUCK2 {
 				regulator-max-microvolt = <1300000>;
 				regulator-boot-on;
 				regulator-ramp-delay = <1250>;
-				rohm,dvs-run-voltage = <950000>;
-				rohm,dvs-idle-voltage = <850000>;
+				rohm,dvs-run-voltage = <1000000>;
+				rohm,dvs-idle-voltage = <900000>;
 				regulator-always-on;
 			};
 
@@ -673,14 +673,14 @@ buck3_reg: BUCK3 {
 				regulator-min-microvolt = <700000>;
 				regulator-max-microvolt = <1300000>;
 				regulator-boot-on;
-				rohm,dvs-run-voltage = <850000>;
+				rohm,dvs-run-voltage = <900000>;
 			};
 
 			buck4_reg: BUCK4 {
 				regulator-name = "buck4";
 				regulator-min-microvolt = <700000>;
 				regulator-max-microvolt = <1300000>;
-				rohm,dvs-run-voltage = <930000>;
+				rohm,dvs-run-voltage = <1000000>;
 			};
 
 			buck5_reg: BUCK5 {
@@ -1117,13 +1117,3 @@ &wdog1 {
 	fsl,ext-reset-output;
 	status = "okay";
 };
-
-&a53_opp_table {
-	opp-1000000000 {
-		opp-microvolt = <850000>;
-	};
-
-	opp-1500000000 {
-		opp-microvolt = <950000>;
-	};
-};
-- 
2.53.0


  parent reply	other threads:[~2026-04-13 14:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-13 12:13 FAILED: patch "[PATCH] arm64: dts: imx8mq-librem5: Bump BUCK1 suspend voltage up to" failed to apply to 5.10-stable tree gregkh
2026-04-13 14:57 ` [PATCH 5.10.y 1/7] arm64: dts: imx8mq-librem5-r3: workaround i2c1 issue with 1GHz cpu voltage Sasha Levin
2026-04-13 14:57   ` [PATCH 5.10.y 2/7] arm64: dts: imx8mq-librem5: Don't mark buck3 as always on Sasha Levin
2026-04-13 14:58   ` [PATCH 5.10.y 3/7] arm64: dts: imx8mq-librem5: set regulators boot-on Sasha Levin
2026-04-13 14:58   ` [PATCH 5.10.y 4/7] arm64: dts: imx8mq-librem5: Set the DVS voltages lower Sasha Levin
2026-04-13 14:58   ` [PATCH 5.10.y 5/7] arm64: dts: imx8mq-librem5: Bump BUCK1 suspend voltage to 0.81V Sasha Levin
2026-04-13 14:58   ` Sasha Levin [this message]
2026-04-13 14:58   ` [PATCH 5.10.y 7/7] arm64: dts: imx8mq-librem5: Bump BUCK1 suspend voltage up to 0.85V Sasha Levin

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