From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:60156 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1947091AbcHRK4u (ORCPT ); Thu, 18 Aug 2016 06:56:50 -0400 Subject: Patch "ARM: dts: sunxi: Add a startup delay for fixed regulator enabled phys" has been added to the 4.4-stable tree To: hdegoede@redhat.com, gregkh@linuxfoundation.org, maxime.ripard@free-electrons.com Cc: , From: Date: Thu, 18 Aug 2016 12:56:59 +0200 Message-ID: <147151781996160@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled ARM: dts: sunxi: Add a startup delay for fixed regulator enabled phys to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm-dts-sunxi-add-a-startup-delay-for-fixed-regulator-enabled-phys.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>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 From: Hans de Goede commit fc51b632c7b047c25807023b76f3877aed19c770 upstream. 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. Signed-off-by: Hans de Goede Signed-off-by: Maxime Ripard Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/sun4i-a10-a1000.dts | 1 + arch/arm/boot/dts/sun4i-a10-hackberry.dts | 1 + arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts | 1 + arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts | 1 + 4 files changed, 4 insertions(+) --- 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>; }; --- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts +++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts @@ -66,6 +66,7 @@ regulator-name = "emac-3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + startup-delay-us = <20000>; enable-active-high; gpio = <&pio 7 19 GPIO_ACTIVE_HIGH>; }; --- a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts +++ b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts @@ -80,6 +80,7 @@ regulator-name = "emac-3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + startup-delay-us = <20000>; enable-active-high; gpio = <&pio 7 19 GPIO_ACTIVE_HIGH>; /* PH19 */ }; --- a/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts +++ b/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts @@ -79,6 +79,7 @@ regulator-name = "emac-3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + startup-delay-us = <20000>; enable-active-high; gpio = <&pio 0 2 GPIO_ACTIVE_HIGH>; }; Patches currently in stable-queue which might be from hdegoede@redhat.com are queue-4.4/arm-dts-sunxi-add-a-startup-delay-for-fixed-regulator-enabled-phys.patch