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authorAdam Ford <aford173@gmail.com>2019-04-02 22:19:08 +0300
committerShawn Guo <shawnguo@kernel.org>2019-04-11 08:44:44 +0300
commitdbb58e291cd47e594b64293bd91a4ce40626513c (patch)
tree3a28f14cb8309d50c49b3a0a7a37af23e4dbeedc /arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
parent0672d22a19244cdb0e5c753125c1a55a120db5d0 (diff)
downloadlinux-dbb58e291cd47e594b64293bd91a4ce40626513c.tar.xz
ARM: dts: imx6q-logicpd: Reduce inrush current on start
The main 3.3V regulator sources a series of additional regulators. This patch adds a small delay, so when the 3.3V regulator comes on it delays a bit before the subsequent regulators can come on. This reduces the inrush current a bit on the external DC power supply to help prevent a situation where the sourcing power supply cannot source enough current and overloads and the kit fails to start. Fixes: 1c207f911fe9 ("ARM: dts: imx: Add support for Logic PD i.MX6QD EVM") Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi')
-rw-r--r--arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
index 3cae139e6396..53624d6bfbfb 100644
--- a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
+++ b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
@@ -99,6 +99,7 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+ startup-delay-us = <70000>;
enable-active-high;
regulator-always-on;
};