From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adam Ford Subject: [PATCH] ARM: dts: imx6q-logicpd: Reduce inrush current on USBH1 Date: Tue, 2 Apr 2019 14:32:04 -0500 Message-ID: <20190402193204.4745-1-aford173@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: linux-arm-kernel@lists.infradead.org Cc: adam.ford@logicpd.com, Adam Ford , Rob Herring , Mark Rutland , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org 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 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; }; -- 2.17.1