drm/i915: Provide the quantization range in the AVI infoframe

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The AVI infoframe is able to inform the display whether the source is
sending full or limited range RGB data.

As per CEA-861 [1] we must first check whether the display reports the
quantization range as selectable, and if so we can set the approriate
bits in the AVI inforframe.

[1] CEA-861-E - 6.4 Format of Version 2 AVI InfoFrame

v2: Give the Q bits better names, add spec chapter information

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Ville Syrjälä 2013-01-17 16:31:31 +02:00 • committed by Daniel Vetter

parent b1edd6a6ec

commit abedc077b4

3 changed files with 29 additions and 2 deletions

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4

drivers/gpu/drm/i915/intel_drv.h

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11

drivers/gpu/drm/i915/intel_hdmi.c

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16

drivers/gpu/drm/i915/intel_sdvo.c

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