Re: [PATCH v3 1/2] drm/display: hdmi: Only allow BPC values of 8, 10, 12 and 16

[Maxime Ripard]

On Fri, 19 Jun 2026 16:37:31 +0200, Nicolas Frattaroli wrote:
> As per the comment in sink_supports_format_bpc(), CTA-861-F defines that
> only bits-per-channel values of 8, 10, 12 and 16 are allowed for HDMI.
> Allowing more than this has surprising consequences for the atomic check
> phase. The HDMI state helpers may accidentally conclude that a sink
> supports 11bpc if a caller asks for it.
> 
> [ ... ]

Reviewed-by: Maxime Ripard <mripard@xxxxxxxxxx>

Thanks!
Maxime