diff mbox series

ARM: dts: imx6q-logicpd: Reduce inrush current on USBH1

Message ID 20190402193204.4745-1-aford173@gmail.com (mailing list archive)
State Mainlined, archived
Commit 7aedca875074b33795bc77066b325898b1eb8032
Headers show
Series ARM: dts: imx6q-logicpd: Reduce inrush current on USBH1 | expand

Commit Message

Adam Ford April 2, 2019, 7:32 p.m. UTC 
Some USB peripherals draw more power, and the sourcing regulator
take a little time to turn on.  This patch fixes an issue where
some devices occasionally do not get detected, because the power
isn't quite ready when communication starts, so we add a bit
of a delay.

Fixes: 1c207f911fe9 ("ARM: dts: imx: Add support for Logic PD
i.MX6QD EVM")

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

Comments

Shawn Guo April 11, 2019, 5:48 a.m. UTC | #1 
On Tue, Apr 02, 2019 at 02:32:04PM -0500, Adam Ford wrote:
> Some USB peripherals draw more power, and the sourcing regulator
> take a little time to turn on.  This patch fixes an issue where
> some devices occasionally do not get detected, because the power
> isn't quite ready when communication starts, so we add a bit
> of a delay.
> 
> Fixes: 1c207f911fe9 ("ARM: dts: imx: Add support for Logic PD
> i.MX6QD EVM")
> 
> Signed-off-by: Adam Ford <aford173@gmail.com>

Applied, thanks.
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
index db6b5b900826..7731db493cb0 100644
--- a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
+++ b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
@@ -88,6 +88,7 @@ 
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <70000>;
 		enable-active-high;
 	};