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Cristian Ciocaltea
bd66cb4038
Bridges using DRM_BRIDGE_OP_HDMI are expected to provide the supported HDMI version. This is not enforced yet, but will become mandatory once the migration to the caps-based HDMI connector initialization API is complete. Advertise HDMI 1.3 support for IT6263, covering the 225 MHz TMDS character rate currently documented by the driver, which is within the HDMI 1.3 limit of 340 MHz. Additionally, keep the stricter 150 MHz effective mode limit by setting max_tmds_char_rate from MAX_PIXEL_CLOCK_KHZ. The existing .hdmi_tmds_char_rate_valid() hook checks both the pixel clock and TMDS character rate. Since the bridge only supports 8 bpc RGB444, these are equivalent for supported modes, making the 225 MHz TMDS rate check unreachable once the 150 MHz pixel-clock limit is applied. drm_bridge_connector_atomic_check() invokes drm_atomic_helper_connector_hdmi_check(), which rejects modes whose computed TMDS character rate exceeds the connector's max_tmds_char_rate before invoking the driver's .tmds_char_rate_valid hook. Since max_tmds_char_rate now carries the existing effective limit, it6263_hdmi_tmds_char_rate_valid() is redundant. Drop it. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Tested-by: Igor Paunovic <royalnet026@gmail.com> # RK3588 Orange Pi 5 Plus, dual HDMI Tested-by: Robin Räber <robin.raebi@gmail.com> Tested-by: Diederik de Haas <diederik@cknow-tech.com> # NanoPC-T6 LTS, Rock 5B Link: https://patch.msgid.link/20261001-bridge-advert-hdmi-caps-v1-4-f8806570e243@collabora.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>