On Thu, Feb 29, 2024 at 08:47:26PM +0100, Sebastian Wick wrote: > > @@ -1708,6 +1731,39 @@ EXPORT_SYMBOL(drm_connector_attach_dp_subconnector_property); > > /** > > * DOC: HDMI connector properties > > * > > + * Broadcast RGB (HDMI specific) > > + * Indicates the Quantization Range (Full vs Limited) used. The color > > + * processing pipeline will be adjusted to match the value of the > > + * property, and the Infoframes will be generated and sent accordingly. > > + * > > + * This property is only relevant if the HDMI output format is RGB. If > > + * it's one of the YCbCr variant, it will be ignored and the output will > > + * use a limited quantization range. > > Uh, maybe just say that the quantization range is selected automatically > in case a YCbCr output format is in use. I'm not sure every YCbCr > variant requires limited and even if it does, new formats could change > this. I documented what i915 is doing: https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/i915/display/intel_hdmi.c#L2143 Maxime
