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drm/edid: kerneldoc for is_hdmi2_sink

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Also some breadcrumbs for how exactly to find this. Probably should
pass drm_connector * or at least drm_display_info * to that function
instead. But drm_hdmi_avi_infoframe_quant_range probably also wants
drm_connector_state (and the hdmi stuff moved into that), so this is a
bit more work.

v2: Fix typo (Alex).

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: 9271c0ca573e ("drm/edid: Don't send non-zero YQ in AVI infoframe for HDMI 1.x sinks")
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171214203054.20141-2-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2017-12-14 21:30:50 +01:00
parent ca40cfc85e
commit 7cdeb37c66
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/drm_edid.c
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@ -4871,6 +4871,11 @@ EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
* @mode: DRM display mode * @mode: DRM display mode
* @rgb_quant_range: RGB quantization range (Q) * @rgb_quant_range: RGB quantization range (Q)
* @rgb_quant_range_selectable: Sink support selectable RGB quantization range (QS) * @rgb_quant_range_selectable: Sink support selectable RGB quantization range (QS)
* @is_hdmi2_sink: HDMI 2.0 sink, which has different default recommendations
*
* Note that @is_hdmi2_sink can be derived by looking at the
* &drm_scdc.supported flag stored in &drm_hdmi_info.scdc,
* &drm_display_info.hdmi, which can be found in &drm_connector.display_info.
*/ */
void void
drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame, drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,