[PATCH v10 54/69] drm/rockchip: rk3066_hdmi: Advertise HDMI 1.4 capabilities

[Heiko Stübner]

Am Freitag, 31. Juli 2026, 18:20:01 Mitteleuropäische Sommerzeit schrieb Cristian Ciocaltea:
> Bridges using DRM_BRIDGE_OP_HDMI are now expected to also provide a
> supported HDMI version.  This is not yet enforced, but will become
> mandatory once the migration to the new caps-based HDMI connector
> initialization API is completed.
> 
> The RK3066 HDMI TX supports HDMI 1.4a, as described in commit
> f84d3d37b7fb ("drm: rockchip: introduce rk3066 hdmi").  However, the
> driver does not currently enforce a maximum TMDS character rate, it only
> filters non-CEA modes and excludes VIC 1 (640x480) via the .mode_valid
> callback.
> 
> Advertise HDMI 1.4 support for now so that modes exceeding the 340 MHz
> TMDS limit are rejected by the core.
> 
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at collabora.com>

Reviewed-by: Heiko Stuebner <heiko at sntech.de>