This is a note to let you know that I've just added the patch titled
drm/mgag200: Add missing write to index before accessing data register
to the 3.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-mgag200-add-missing-write-to-index-before-accessing-data-register.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 91f8f105f2b82b4a38dee2d74760bc39d40ec42c Mon Sep 17 00:00:00 2001
From: Christopher Harvey <charvey@xxxxxxxxxx>
Date: Fri, 31 May 2013 20:33:07 +0000
Subject: drm/mgag200: Add missing write to index before accessing data register
From: Christopher Harvey <charvey@xxxxxxxxxx>
commit 91f8f105f2b82b4a38dee2d74760bc39d40ec42c upstream.
This is a bug fix for some versions of g200se cards while doing
mode-setting.
Signed-off-by: Christopher Harvey <charvey@xxxxxxxxxx>
Tested-by: Julia Lemire <jlemire@xxxxxxxxxx>
Acked-by: Julia Lemire <jlemire@xxxxxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/mgag200/mgag200_mode.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1041,13 +1041,14 @@ static int mga_crtc_mode_set(struct drm_
else
hi_pri_lvl = 5;
- WREG8(0x1fde, 0x06);
- WREG8(0x1fdf, hi_pri_lvl);
+ WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
+ WREG8(MGAREG_CRTCEXT_DATA, hi_pri_lvl);
} else {
+ WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
if (mdev->reg_1e24 >= 0x01)
- WREG8(0x1fdf, 0x03);
+ WREG8(MGAREG_CRTCEXT_DATA, 0x03);
else
- WREG8(0x1fdf, 0x04);
+ WREG8(MGAREG_CRTCEXT_DATA, 0x04);
}
}
return 0;
Patches currently in stable-queue which might be from charvey@xxxxxxxxxx are
queue-3.9/drm-mgag200-add-missing-write-to-index-before-accessing-data-register.patch
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