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* [PATCH] arm64: dts: imx8mm-beacon: Fix voltages on LDO1 and LDO2
@ 2020-05-26 17:09 Adam Ford
  2020-05-26 17:43 ` Daniel Baluta
  0 siblings, 1 reply; 3+ messages in thread
From: Adam Ford @ 2020-05-26 17:09 UTC (permalink / raw)
  To: linux-arm-kernel
  Cc: aford, Adam Ford, Rob Herring, Shawn Guo, Sascha Hauer,
	Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
	devicetree, linux-kernel

LDO1 and LDO2 settings are wrong and case the voltage to go above the
maximum level of 2.15V permitted by the SoC to 3.0V.

This patch is based on work done on the i.MX8M Mini-EVK which utilizes
the same fix.

Fixes: 593816fa2f35 ("arm64: dts: imx: Add Beacon i.MX8m-Mini development kit")

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
index fb0137a8611c..94911b1707ef 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
@@ -136,7 +136,7 @@
 
 			ldo1_reg: LDO1 {
 				regulator-name = "LDO1";
-				regulator-min-microvolt = <3000000>;
+				regulator-min-microvolt = <1600000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
 				regulator-always-on;
@@ -144,7 +144,7 @@
 
 			ldo2_reg: LDO2 {
 				regulator-name = "LDO2";
-				regulator-min-microvolt = <900000>;
+				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <900000>;
 				regulator-boot-on;
 				regulator-always-on;
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-06-18 14:36 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2020-05-26 17:09 [PATCH] arm64: dts: imx8mm-beacon: Fix voltages on LDO1 and LDO2 Adam Ford
2020-05-26 17:43 ` Daniel Baluta
2020-06-18 14:35   ` Shawn Guo

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