From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Wed, 2 Jul 2014 13:47:04 +0000 (+0200)
Subject: drm/vmwgfx: Fix incorrect write to read-only register v2:
X-Git-Tag: omap-for-v3.16/fixes-rc4~13^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4e578080ed3262ed2c3985868539bc66218d25c0;p=pandora-kernel.git

drm/vmwgfx: Fix incorrect write to read-only register v2:

Commit "drm/vmwgfx: correct fb_fix_screeninfo.line_length", while fixing a
vmwgfx fbdev bug, also writes the pitch to a supposedly read-only register:
SVGA_REG_BYTES_PER_LINE, while it should be (and also in fact is) written to
SVGA_REG_PITCHLOCK.

This patch is Cc'd stable because of the unknown effects writing to this
register might have, particularly on older device versions.

v2: Updated log message.

Cc: stable@vger.kernel.org
Cc: Christopher Friedt <chrisfriedt@gmail.com>
Tested-by: Christopher Friedt <chrisfriedt@gmail.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
---

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