linux-kernel - RE: [PATCH 3.18 03/28] ARM: dts: imx53-qsb-common: fix FEC pinmux config

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Date:   Thu, 16 Nov 2017 04:08:21 +0000
From:   Patrick Brünn <P.Bruenn@...khoff.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: RE: [PATCH 3.18 03/28] ARM: dts: imx53-qsb-common: fix FEC pinmux
 config

>From: Greg Kroah-Hartman [mailto:gregkh@...uxfoundation.org]
>Sent: Montag, 13. November 2017 13:55
>
>3.18-stable review patch.  If anyone has any objections, please let me know.
>
>------------------
>
>From: Patrick Bruenn <p.bruenn@...khoff.com>
>
>
>[ Upstream commit 8b649e426336d7d4800ff9c82858328f4215ba01 ]
>
>The pinmux configuration in device tree was different from manual
>muxing in <u-boot>/board/freescale/mx53loco/mx53loco.c
>All pins were configured as NO_PAD_CTL(1 << 31), which was fine as the
>bootloader already did the correct pinmuxing for us.
>But recently u-boot is migrating to reuse device tree files from the
>kernel tree, so it seems to be better to have the correct pinmuxing in
>our files, too.
>
As discussed for 4.4 stable queue this patch might break existing machines, if they use a different pinmux configuration with their own bootloader.
I would drop it from 3.18, too.

Regards,
Patrick

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