| Message ID | 1570604659-28314-1-git-send-email-Anson.Huang@nxp.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 13645b1a0426a38338d484f3ec7b3021c1359986 |
| Headers | show |
| Series | arm64: dts: imx8mq-evk: VDD_ARM power rail is always ON | expand |
On Wed, Oct 09, 2019 at 03:04:19PM +0800, Anson Huang wrote: > On i.MX8MQ EVK board, VDD_ARM is from a DC-DC converter which > is always ON, the GPIO1_IO13 is ONLY to switch VDD_ARM's voltage > between 0.9V and 1V for CPU DVFS, so VDD_ARM's GPIO regulator > should be always ON to avoid below confusion after kernel boot > up: > > imx8mqevk login: > [ 31.776619] vdd_arm: disabling > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Applied, thanks.
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts index 6ede46f..4e0a281 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -48,6 +48,8 @@ gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>; states = <1000000 0x0 900000 0x1>; + regulator-boot-on; + regulator-always-on; }; wm8524: audio-codec {
On i.MX8MQ EVK board, VDD_ARM is from a DC-DC converter which is always ON, the GPIO1_IO13 is ONLY to switch VDD_ARM's voltage between 0.9V and 1V for CPU DVFS, so VDD_ARM's GPIO regulator should be always ON to avoid below confusion after kernel boot up: imx8mqevk login: [ 31.776619] vdd_arm: disabling Signed-off-by: Anson Huang <Anson.Huang@nxp.com> --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 2 ++ 1 file changed, 2 insertions(+)