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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 43967d9b5a
("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: 43967d9b5a ("ARM: dts: imx7d-sdb: Assign corresponding power supply for LDOs")
Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Anson Huang 2019-05-29 14:50:56 +08:00 committed by Shawn Guo
parent af79ef726a
commit 86ddd8ad2f
1 changed files with 2 additions and 2 deletions
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4
arch/arm/boot/dts/imx7d-sdb.dts
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@ -263,8 +263,8 @@ sw1c_reg: sw1b {
};
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;
};