drm/radeon/kms: fix legacy LVDS dpms sequence
authorAlex Deucher <alexdeucher@gmail.com>
Wed, 21 Jul 2010 23:37:21 +0000 (19:37 -0400)
committerDave Airlie <airlied@redhat.com>
Thu, 22 Jul 2010 00:01:40 +0000 (10:01 +1000)
Add delay after turning off the LVDS encoder.

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

Tested-by: Jan Kreuzer <kontrollator@gmx.de>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/radeon_legacy_encoders.c

index bad77f4..5688a0c 100644 (file)
@@ -108,6 +108,7 @@ static void radeon_legacy_lvds_dpms(struct drm_encoder *encoder, int mode)
                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;
        }