From fc51b632c7b047c25807023b76f3877aed19c770 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 4 Jun 2016 12:58:39 +0200 Subject: ARM: dts: sunxi: Add a startup delay for fixed regulator enabled phys It seems that recent kernels have a shorter timeout when scanning for ethernet phys causing us to hit a timeout on boards where the phy's regulator gets enabled just before scanning, which leads to non working ethernet. A 10ms startup delay seems to be enough to fix it, this commit adds a 20ms startup delay just to be safe. This has been tested on a sun4i-a10-a1000 and sun5i-a10s-wobo-i5 board, both of which have non-working ethernet on recent kernels without this fix. Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede Signed-off-by: Maxime Ripard --- arch/arm/boot/dts/sun4i-a10-a1000.dts | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/boot/dts/sun4i-a10-a1000.dts') diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts b/arch/arm/boot/dts/sun4i-a10-a1000.dts index c92a1ae33a1e..fa70b8fbf221 100644 --- a/arch/arm/boot/dts/sun4i-a10-a1000.dts +++ b/arch/arm/boot/dts/sun4i-a10-a1000.dts @@ -84,6 +84,7 @@ regulator-name = "emac-3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + startup-delay-us = <20000>; enable-active-high; gpio = <&pio 7 15 GPIO_ACTIVE_HIGH>; }; -- cgit v1.2.3