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From: Christopher Harvey <charvey@matrox.com>
To: dri-devel@lists.freedesktop.org
Cc: Mathieu Larouche <mathieu.larouche@matrox.com>
Subject: [PATCH] drm/mgag200: Add missing write to index before accessing data register
Date: Fri, 31 May 2013 16:33:07 -0400 (EDT)	[thread overview]
Message-ID: <20130531203307.787D87F45F@pluton.matrox.com> (raw)

This is a bug fix for some versions of g200se cards while doing
mode-setting.

Signed-off-by: Christopher Harvey <charvey@matrox.com>
Tested-by: Julia Lemire <jlemire@matrox.com>
Acked-by: Julia Lemire <jlemire@matrox.com>Julia Lemire <jlemire@matrox.com>
---
 drivers/gpu/drm/mgag200/mgag200_mode.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index deed0bd..5b1a9e7 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1034,13 +1034,14 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
 			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;
-- 
1.8.1.5

             reply	other threads:[~2013-05-31 20:33 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-31 20:33 Christopher Harvey [this message]
2013-05-31 20:40 ` [PATCH] drm/mgag200: Add missing write to index before accessing data register Christopher Harvey

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