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arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range 

commit cfb12c8952f617df58d73d24161e539a035d82b0 upstream.

Correct ldo1 voltage range from wrong high group(3.0V~3.3V) to low group
(1.6V~1.9V) because the ldo1 should be 1.8V. Actually, two voltage groups
have been supported at bd718x7-regulator driver, hence, just corrrect the
voltage range to 1.6V~3.3V. For ldo2@0.8V, correct voltage range too.
Otherwise, ldo1 would be kept @3.0V and ldo2@0.9V which violate i.mx8mn
datasheet as the below warning log in kernel:

[    0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV
[    0.999196] LDO2: Bringing 800000uV into 900000-900000uV

Fixes: 3e44dd0973 ("arm64: dts: imx8mn-ddr4-evk: Add rohm,bd71847 PMIC support")
Cc: stable@vger.kernel.org
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Robin Gong 2020-05-22 18:44:51 +08:00 committed by Sasha Levin
parent 90bd9c611f
commit c036eb65fd
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
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@ -268,7 +268,7 @@
ldo1_reg: LDO1 {
regulator-name = "LDO1";
regulator-min-microvolt = <3000000>;
regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
@ -276,7 +276,7 @@
ldo2_reg: LDO2 {
regulator-name = "LDO2";
regulator-min-microvolt = <900000>;
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <900000>;
regulator-boot-on;
regulator-always-on;