From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 13 Feb 2012 21:36:34 +0000 (-0500)
Subject: drm/radeon/kms: fix MSI re-arm on rv370+
X-Git-Tag: v3.2.9~69
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74d54f57ce5ae36b8e74cab2a349edb614f1b5cb;p=pandora-kernel.git

drm/radeon/kms: fix MSI re-arm on rv370+

commit b7f5b7dec3d539a84734f2bcb7e53fbb1532a40b upstream.

MSI_REARM_EN register is a write only trigger register.
There is no need RMW when re-arming.

May fix:
https://bugs.freedesktop.org/show_bug.cgi?id=41668

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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