Commit 4cd46ea0 authored Feb 21, 2026 by Sebastian Krzyszkowiak Committed by Frank Li Mar 17, 2026

Revert "arm64: dts: imx8mq-librem5: Set the DVS voltages lower"



This reverts commit c24a9b69.

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: c24a9b69 ("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>

parent bccaf98c

arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts

+1 −1

Original line number	Diff line number	Diff line
		@@ -7,7 +7,7 @@

		&a53_opp_table {
		opp-1000000000 {
		opp-microvolt = <950000>;
		opp-microvolt = <1000000>;
		};
		};

arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi

+6 −16

Original line number	Diff line number	Diff line
		@@ -880,8 +880,8 @@ 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;
		};
		@@ -892,8 +892,8 @@ 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;
		};

		@@ -902,14 +902,14 @@ 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 {
		@@ -1448,13 +1448,3 @@ &wdog1 {
		fsl,ext-reset-output;
		status = "okay";
		};

		&a53_opp_table {
		opp-1000000000 {
		opp-microvolt = <850000>;
		};

		opp-1500000000 {
		opp-microvolt = <950000>;
		};
		};