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Message-Id: <20100730173108.030172538@clark.site>
Date:	Fri, 30 Jul 2010 10:30:24 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Alex Deucher <alexdeucher@...il.com>,
	Dave Airlie <airlied@...hat.com>
Subject: [059/140] drm/radeon/kms: fix legacy LVDS dpms sequence

2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Alex Deucher <alexdeucher@...il.com>

commit 15cb02c0a0338ee724bf23e31c7c410ecbffeeba upstream.

Add delay after turning off the LVDS encoder.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16389

Tested-by: Jan Kreuzer <kontrollator@....de>
Signed-off-by: Alex Deucher <alexdeucher@...il.com>
Signed-off-by: Dave Airlie <airlied@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/gpu/drm/radeon/radeon_legacy_encoders.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -108,6 +108,7 @@ static void radeon_legacy_lvds_dpms(stru
 		udelay(panel_pwr_delay * 1000);
 		WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
 		WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
+		udelay(panel_pwr_delay * 1000);
 		break;
 	}
 


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