[PATCH] arm64: dts: amlogic: odroid-n2: set usb-pwr-en regulator always on

From: Anand Moon
Date: Sun Feb 16 2020 - 15:21:31 EST


usb-pwr-en regulator is getting disable after booting, setting
regulator-alway-on help enable the regulator after booting.

[ 31.766097] USB_PWR_EN: disabling

Fixes: c35f6dc5c377 (arm64: dts: meson: Add minimal support for Odroid-N2)
Cc: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
Cc: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
---
Patch generated on top of my earier patch.
[0] https://patchwork.kernel.org/patch/11384531/
[1] https://patchwork.kernel.org/patch/11384533/

Before
[root@alarm ~]# cat /sys/kernel/debug/regulator/regulator_summary | grep USB
USB_PWR_EN 0 1 0 unknown 5000mV 0mA 5000mV 5000mV
After
[root@alarm ~]# cat /sys/kernel/debug/regulator/regulator_summary | grep USB
USB_PWR_EN 1 1 0 unknown 5000mV 0mA 5000mV 5000mV
---
arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
index 23eddff85fe5..938a9e15adfc 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
@@ -177,6 +177,7 @@ usb_pwr_en: regulator-usb_pwr_en {
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
vin-supply = <&vcc_5v>;
+ regulator-always-on;

/* Connected to the microUSB port power enable */
gpio = <&gpio GPIOH_6 GPIO_ACTIVE_HIGH>;
--
2.25.0