diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-01-11 14:57:24 +0200 |
|---|---|---|
| committer | Tao Huang <huangtao@rock-chips.com> | 2019-03-08 08:49:30 +0800 |
| commit | 2b882c1f35d814fb7ef3e74255ba66012223f08f (patch) | |
| tree | a8c4d6d5f32d158c870de4c10cfde9d3e91f1fc0 /include | |
| parent | 6255a9fe86e08dc0760cb824875f2dae728428e7 (diff) | |
UPSTREAM: drm/edid: Set AVI infoframe Q even when QS=0
HDMI 2.0 recommends that we set the Q bits in the AVI infoframe
even when the sink does not support quantization range selection (QS=0).
According to CEA-861 we can do that as long as the Q we send matches
the default quantization range for the mode.
Previously I think I had misread the spec as saying that you can't
send a non-zero Q at all when QS=0. But that's not what the spec
actually says.
v2: Fix typo in commit message (Jani)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170111125725.8086-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit 779c4c2866150c1e5518d703b747f794f91f044c)
Change-Id: Ic006e2a2a9ac2f1ab105c595bc4a62c0918c6dff
Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drm_edid.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 50a8e4d04aeb..aecba3b48d1a 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -348,6 +348,7 @@ drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame, const struct drm_display_mode *mode); void drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame, + const struct drm_display_mode *mode, enum hdmi_quantization_range rgb_quant_range, bool rgb_quant_range_selectable); |