Thread (6 messages) 6 messages, 3 authors, 2026-08-06

[PATCH v2 3/3] arm64: dts: imx8mq-evk: add regulator-off-in-suspend for VGEN1/VGEN6

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From: Joy Zou <hidden>
Date: 2026-07-31 10:18:50
Also in: imx, linux-devicetree, lkml
Subsystem: arm/freescale imx / mxc / layerscape arm architecture, the rest · Maintainers: Frank Li, Sascha Hauer, Linus Torvalds

VGEN1 and VGEN6 have no consumers and are not always-on. Mark them as
regulator-off-in-suspend to disable them properly during suspend and
reduce power consumption.

Signed-off-by: Joy Zou <redacted>
---
Changes in v2:
- The patch is aimed at reducing power consumption during suspend. It is
not related to the race condition. So remove the redundant wording so the
commit message is clearer.
- Link to v1: https://patch.msgid.link/20260716-b4-regulator-pf01-v1-0-8c1519d54bd4@oss.nxp.com (local)
---
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 6 ++++++
 1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index 5ea04703ddd7..fc0303e44433 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -299,6 +299,9 @@ vref_reg: vrefddr {
 			vgen1_reg: vgen1 {
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <1550000>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
 			};
 
 			vgen2_reg: vgen2 {
@@ -328,6 +331,9 @@ vgen5_reg: vgen5 {
 			vgen6_reg: vgen6 {
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
 			};
 		};
 	};
-- 
2.34.1

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