From: Adam Ford aford173@gmail.com
commit 7aedca875074b33795bc77066b325898b1eb8032 upstream.
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 Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi | 1 + 1 file changed, 1 insertion(+)
--- 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; };