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Old 03-25-2010, 09:25 PM
Chris Halse Rogers
 
Default drm/nv04-nv40: Fix up the programmed horizontal sync pulse delay.

From: Christopher James Halse Rogers <raof@ubuntu.com>

The calculated values were a little bit off (~16 clocks), the only
effect it could have had is a slightly offset image with respect to
the blob on analog outputs (bug 26790).

BugLink: http://bugs.launchpad.net/bugs/529130

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Christopher James Halse Rogers <raof@ubuntu.com>
---
drivers/gpu/drm/nouveau/nv04_crtc.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nv04_crtc.c b/drivers/gpu/drm/nouveau/nv04_crtc.c
index d2f143e..9986aba 100644
--- a/drivers/gpu/drm/nouveau/nv04_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv04_crtc.c
@@ -230,9 +230,9 @@ nv_crtc_mode_set_vga(struct drm_crtc *crtc, struct drm_display_mode *mode)
struct drm_framebuffer *fb = crtc->fb;

/* Calculate our timings */
- int horizDisplay = (mode->crtc_hdisplay >> 3) - 1;
- int horizStart = (mode->crtc_hsync_start >> 3) - 1;
- int horizEnd = (mode->crtc_hsync_end >> 3) - 1;
+ int horizDisplay = (mode->crtc_hdisplay >> 3) - 1;
+ int horizStart = (mode->crtc_hsync_start >> 3) + 1;
+ int horizEnd = (mode->crtc_hsync_end >> 3) + 1;
int horizTotal = (mode->crtc_htotal >> 3) - 5;
int horizBlankStart = (mode->crtc_hdisplay >> 3) - 1;
int horizBlankEnd = (mode->crtc_htotal >> 3) - 1;
--
1.7.0


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