linux-kernel - Re: [PATCH v1] tty: serial: 8250_core: restore the LCR register in set

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Message-ID: <7hppdmg4zc.fsf@deeprootsystems.com>
Date:	Mon, 20 Oct 2014 08:01:27 -0700
From:	Kevin Hilman <khilman@...nel.org>
To:	Sudhir Sreedharan <ssreedharan@...sta.com>
Cc:	peter@...leysoftware.com, gregkh@...uxfoundation.org,
	linux-serial@...r.kernel.org, jslaby@...e.cz,
	linux-kernel@...r.kernel.org, olof@...om.net,
	linux-arm-kernel@...ts.infradead.org, geert@...ux-m68k.org
Subject: Re: [PATCH v1] tty: serial: 8250_core: restore the LCR register in set_sleep

Sudhir Sreedharan <ssreedharan@...sta.com> writes:

> In ST16650V2 based serial uarts, while initalizing the PM state,
> LCR registers are being initialized to 0 in serial8250_set_sleep().
> If console port is already initialized and being used, this will
> throws garbage in the console.
>
> Signed-off-by: Sudhir Sreedharan <ssreedharan@...sta.com>

Tested-by: Kevin Hilman <khilman@...aro.org>

I boot tested this on a bunch of ARM boards and don't see any
more failures/regressions.

Kevin
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