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| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-01-11 14:57:24 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-01-26 18:37:13 +0200 |
| commit | 779c4c2866150c1e5518d703b747f794f91f044c (patch) | |
| tree | 95f70bfa6e8b22f4972134e19aa7ba5065fb1b81 /include/drm/drm_edid.h | |
| parent | drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range() (diff) | |
| download | wireguard-linux-779c4c2866150c1e5518d703b747f794f91f044c.tar.xz wireguard-linux-779c4c2866150c1e5518d703b747f794f91f044c.zip | |
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>
Diffstat (limited to 'include/drm/drm_edid.h')
| -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 cfad4d89589f..43fb0ac5eb9c 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -347,6 +347,7 @@ 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); |