From: Jakub Kicinski <kubakici@wp.pl>
Date: Mon, 16 Mar 2015 23:28:47 +0000 (+0100)
Subject: sc16is7xx: don't wipe out port configuration on shutdown
X-Git-Tag: omap-for-v4.2/o2_dc~64^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9764e7a0f63bda5664cb985f992002c6eccef641;p=pandora-kernel.git

sc16is7xx: don't wipe out port configuration on shutdown

EFCR register contains RS-485 configuration which should not
be changed by shutdown.  Instead of doing a write only update
the appropriate bits.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Jon Ringle <jringle@gridpoint.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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