[PATCH] Modified the device tree for Tech Nexion's PICO-PI-IMX8M board to keep the power regulators always on, due to encountering problems after booting the kernel on the board (the power resistors would turn off shortly after being presented the login prompt).
DORMANTno replies
From: Ioan-Vladut Voicu <hidden>
Date: 2024-08-07 22:39:30
Subsystem:
arm/freescale imx / mxc / layerscape arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
--- arch/arm64/boot/dts/freescale/imx8mq-pico-pi.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-pico-pi.dts b/arch/arm64/boot/dts/freescale/imx8mq-pico-pi.dts
index ec89b5ade..27d81083d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-pico-pi.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-pico-pi.dts@@ -80,6 +80,7 @@ buck1: BUCK1 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; + regulator-always-on; regulator-ramp-delay = <1250>; rohm,dvs-run-voltage = <900000>; rohm,dvs-idle-voltage = <850000>;
@@ -91,6 +92,7 @@ buck2: BUCK2 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; + regulator-always-on; regulator-ramp-delay = <1250>; rohm,dvs-run-voltage = <1000000>; rohm,dvs-idle-voltage = <900000>;
@@ -101,6 +103,7 @@ buck3: BUCK3 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; + regulator-always-on; rohm,dvs-run-voltage = <1000000>; };
@@ -109,6 +112,7 @@ buck4: BUCK4 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; + regulator-always-on; rohm,dvs-run-voltage = <1000000>; };
@@ -117,6 +121,7 @@ buck5: BUCK5 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1350000>; regulator-boot-on; + regulator-always-on; }; buck6: BUCK6 {
@@ -124,6 +129,7 @@ buck6: BUCK6 { regulator-min-microvolt = <3000000>; regulator-max-microvolt = <3300000>; regulator-boot-on; + regulator-always-on; }; buck7: BUCK7 {
@@ -131,6 +137,7 @@ buck7: BUCK7 { regulator-min-microvolt = <1605000>; regulator-max-microvolt = <1995000>; regulator-boot-on; + regulator-always-on; }; buck8: BUCK8 {
@@ -138,6 +145,7 @@ buck8: BUCK8 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; regulator-boot-on; + regulator-always-on; }; ldo1: LDO1 {
@@ -161,6 +169,7 @@ ldo3: LDO3 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-boot-on; + regulator-always-on; }; ldo4: LDO4 {
@@ -168,6 +177,7 @@ ldo4: LDO4 { regulator-min-microvolt = <900000>; regulator-max-microvolt = <1800000>; regulator-boot-on; + regulator-always-on; }; ldo5: LDO5 {
@@ -175,6 +185,7 @@ ldo5: LDO5 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-boot-on; + regulator-always-on; }; ldo6: LDO6 {
@@ -182,6 +193,7 @@ ldo6: LDO6 { regulator-min-microvolt = <900000>; regulator-max-microvolt = <1800000>; regulator-boot-on; + regulator-always-on; }; ldo7: LDO7 {
@@ -189,6 +201,7 @@ ldo7: LDO7 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-boot-on; + regulator-always-on; }; }; };
--
2.39.2