diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2013-11-28 20:10:38 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 15:48:58 (GMT) |
| commit | d3b9c9ba488cdbedba8dd4b93eebb85153466965 (patch) | |
| tree | e1110ca4b919faa3db0f58b6133d74f5263fde6f /drivers/gpu | |
| parent | c4f16060b6e48a04487d1becf52d4acb2b3f69b0 (diff) | |
| download | linux-fsl-qoriq-d3b9c9ba488cdbedba8dd4b93eebb85153466965.tar.xz | |
drm/i915: Fix pipe CSC post offset calculation
commit 32cf0cb0294814cb1ee5d8727e9aac0e9aa80d2e upstream.
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
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -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 333aa1b..1392b0b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5546,7 +5546,7 @@ 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); |