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drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range()

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Pull the logic to populate the quantization range information
in the AVI infoframe into a small helper. We'll be adding a bit
more logic to it, and having it in a central place seems like a
good idea since it's based on the CEA-861 spec.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170111125725.8086-4-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Ville Syrjälä
2017-01-11 14:57:23 +02:00
parent c8127cf08a
commit a2ce26f815
4 changed files with 40 additions and 17 deletions
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13
drivers/gpu/drm/i915/intel_hdmi.c
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@@ -465,14 +465,11 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
return;
}
if (intel_hdmi->rgb_quant_range_selectable) {
if (crtc_state->limited_color_range)
frame.avi.quantization_range =
HDMI_QUANTIZATION_RANGE_LIMITED;
else
frame.avi.quantization_range =
HDMI_QUANTIZATION_RANGE_FULL;
}
drm_hdmi_avi_infoframe_quant_range(&frame.avi,
crtc_state->limited_color_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
intel_hdmi->rgb_quant_range_selectable);
intel_write_infoframe(encoder, crtc_state, &frame);
}