This fixes fdo bug 27008. >From 0be75bd324cea1eb577cf4bdebfb59af217876cf Mon Sep 17 00:00:00 2001 From: Alex Deucher <alexdeuc...@gmail.com> Date: Thu, 11 Mar 2010 10:38:07 -0500 Subject: [PATCH] drm/radeon/kms/rs4xx: make sure crtcs are enabled when setting timing
based on ddx patch from Matthias Hopf.
Signed-off-by: Alex Deucher <alexdeuc...@gmail.com>
---
drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index df23d6a..88865e3 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -603,6 +603,10 @@ static bool radeon_set_crtc_timing(struct
drm_crtc *crtc, struct drm_display_mod
? RADEON_CRTC2_INTERLACE_EN
: 0));
+ /* rs4xx chips seem to like to have the crtc enabled when the
timing is set */
+ if ((rdev->family == CHIP_RS400) || (rdev->family ==
CHIP_RS480))
+ crtc2_gen_cntl |= RADEON_CRTC2_EN;
+
disp2_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
disp2_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
@@ -630,6 +634,10 @@ static bool radeon_set_crtc_timing(struct
drm_crtc *crtc, struct drm_display_mod
? RADEON_CRTC_INTERLACE_EN
: 0));
+ /* rs4xx chips seem to like to have the crtc enabled when the
timing is set */
+ if ((rdev->family == CHIP_RS400) || (rdev->family ==
CHIP_RS480))
+ crtc_gen_cntl |= RADEON_CRTC_EN;
+
crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
crtc_ext_cntl |= (RADEON_XCRT_CNT_EN |
RADEON_CRTC_VSYNC_DIS |
--
1.5.6.3
0001-drm-radeon-kms-rs4xx-make-sure-crtcs-are-enabled-wh.patch
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