diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2013-11-28 22:10:38 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-11-28 22:47:41 +0100 |
| commit | 32cf0cb0294814cb1ee5d8727e9aac0e9aa80d2e (patch) | |
| tree | 287d2d26b1186c11fa52f3588cbb0bd9adf4040f /drivers/gpu/drm/i915 | |
| parent | 3b32a35b31b19c8f9340d3b3a149062fce1cd89f (diff) | |
| download | linux-32cf0cb0294814cb1ee5d8727e9aac0e9aa80d2e.tar.bz2 | |
drm/i915: Fix pipe CSC post offset calculation
We were miscalculating the pipe CSC post offset for the full->limited
range conversion. The resulting post offset was double what it was
supposed to be, which caused blacks to come out grey when using
limited range output on HSW+.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71769
Cc: stable@vger.kernel.org
Tested-by: Lauri Mylläri <lauri.myllari@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0d9369578fde..898bd98c96ae 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5815,7 +5815,7 @@ static void intel_set_pipe_csc(struct drm_crtc *crtc) uint16_t postoff = 0; if (intel_crtc->config.limited_color_range) - postoff = (16 * (1 << 13) / 255) & 0x1fff; + postoff = (16 * (1 << 12) / 255) & 0x1fff; I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff); I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff); |