From 54d74013a170868303a0811b5d75af955e0c12aa Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Wed, 29 May 2019 14:50:56 +0800 Subject: [PATCH] ARM: dts: imx7d-sdb: Make SW2's voltage fixed On i.MX7D SDB board, SW2 supplies a lot of peripheral devices, its voltage should be fixed at 1.8V. The commit 8fcac7aeb4fb ("ARM: dts: imx7d-sdb: Assign corresponding power supply for LDOs") assigns SW2 as the supplier of vdd1p0d, and when its comsumers pcie-phy/mipi-phy try to set the vdd1p0d to 1.0V, regulator core will also set SW2 to its best(min) voltage to 1.5V, and it will lead to board reset. This patch makes SW2's voltage fixed at 1.8V to avoid this issue. Fixes: 8fcac7aeb4fb ("ARM: dts: imx7d-sdb: Assign corresponding power supply for LDOs") Reported-by: Leonard Crestez Signed-off-by: Anson Huang Reviewed-by: Leonard Crestez Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx7d-sdb.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts index efc83bcfa9c6d..a5365b8694850 100644 --- a/arch/arm/boot/dts/imx7d-sdb.dts +++ b/arch/arm/boot/dts/imx7d-sdb.dts @@ -263,8 +263,8 @@ }; sw2_reg: sw2 { - regulator-min-microvolt = <1500000>; - regulator-max-microvolt = <1850000>; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; regulator-boot-on; regulator-always-on; }; -- 2.39.5