Re: [PATCH V2] ARM: dts: imx6q-logicpd: Reduce inrush current on start

2019-04-10 Thread Shawn Guo 
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 

Applied, thanks.

[PATCH V2] ARM: dts: imx6q-logicpd: Reduce inrush current on start

2019-04-02 Thread Adam Ford 
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 

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 = <330>;
regulator-max-microvolt = <330>;
gpio = < 26 GPIO_ACTIVE_HIGH>;
+   startup-delay-us = <7>;
enable-active-high;
regulator-always-on;
};
-- 
2.17.1