From: Andre Przywara <andre.przywara@arm.com>
Date: Thu, 21 May 2015 16:26:19 +0000 (+0100)
Subject: drivers: PL011: replace UART_MIS reading with _RIS & _IMSC
X-Git-Tag: omap-for-v4.2/wakeirq-drivers-v2^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=075167ed71b7bd9fdeaa5c2f69179471d17e3712;p=pandora-kernel.git

drivers: PL011: replace UART_MIS reading with _RIS & _IMSC

The PL011 register UART_MIS is actually a bitwise AND of the
UART_RIS and the UART_MISC register.
Since the SBSA UART does not include the _MIS register, use the
two separate registers to get the same behaviour. Since we are
inside the spinlock and we read the _IMSC register only once, there
should be no race issue.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Mark Langsdorf <mlangsdo@redhat.com>
Tested-by: Naresh Bhat <nbhat@cavium.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

Reading git-diff-tree failed