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authorRobin Gong <yibin.gong@nxp.com>2020-05-22 18:44:51 +0800
committerSasha Levin <sashal@kernel.org>2020-06-30 15:37:10 -0400
commitc036eb65fdfc1a5d43f7edf3d6e6fb562bde5120 (patch)
tree5f88cfdcc6ad68f7aced800ca3b9beb7453095a3 /arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
parent90bd9c611f21b7461d199f2e331cdde1563c72e3 (diff)
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: 3e44dd09736d ("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>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts')
-rw-r--r--arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
index 11c705d225d0..9ad1d43b8ce7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
@@ -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;