diff options
| author | Darren Etheridge <detheridge@ti.com> | 2013-08-14 21:43:33 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-08-19 01:10:54 +0200 |
| commit | a9767188678725aac99d7990025dd5b822728ba8 (patch) | |
| tree | 74fa670bc920f9193882395c8233cfcf157e4b04 /drivers/gpu/drm/tilcdc/tilcdc_crtc.c | |
| parent | drm/i2c: tda998x: prepare for broken sync workaround (diff) | |
| download | linux-a9767188678725aac99d7990025dd5b822728ba8.tar.xz linux-a9767188678725aac99d7990025dd5b822728ba8.zip | |
drm/tilcdc fixup mode to workaround sync for tda998x
Add a fixup function that will flip the hsync priority and
add a hskew value that is used to shift the tda998x to the
right by a variable number of pixels depending on the mode.
This works around an issue with the sync timings that tilcdc
is outputing.
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index 7418dcd986d3..6d0524095fe3 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -379,7 +379,12 @@ static int tilcdc_crtc_mode_set(struct drm_crtc *crtc, else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_SYNC_EDGE); - if (mode->flags & DRM_MODE_FLAG_NHSYNC) + /* + * use value from adjusted_mode here as this might have been + * changed as part of the fixup for slave encoders to solve the + * issue where tilcdc timings are not VESA compliant + */ + if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) tilcdc_set(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_HSYNC); else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_HSYNC); |