| Message ID | 20190402191908.4306-1-aford173@gmail.com (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Commit | dbb58e291cd47e594b64293bd91a4ce40626513c |
| Headers | show |
| Series | [V2] ARM: dts: imx6q-logicpd: Reduce inrush current on start | expand |
On Tue, Apr 02, 2019 at 02:19:08PM -0500, Adam Ford wrote: > 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> Applied, thanks.
diff --git a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi index fb01fa6e4224..e31b6923cb72 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; };
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>