From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anson Huang Subject: [PATCH] arm64: dts: imx8mq-evk: VDD_ARM power rail is always ON Date: Wed, 9 Oct 2019 15:04:19 +0800 Message-ID: <1570604659-28314-1-git-send-email-Anson.Huang@nxp.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, l.stach@pengutronix.de, ccaione@baylibre.com, daniel.baluta@nxp.com, andrew.smirnov@gmail.com, abel.vesa@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Linux-imx@nxp.com List-Id: devicetree@vger.kernel.org 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 --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 2 ++ 1 file changed, 2 insertions(+) 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 { -- 2.7.4