This patch series provides the missing support for high TMDS clock ratio and scrambling to DW HDMI QP TX library, required for handling HDMI 2.0 display modes on RK3576 & RK3588 SoCs.
In order to allow addressing the SCDC status lost on sink disconnects, it adds an atomic variant of the drm_bridge_funcs.detect callback and a new drm_bridge_detect_ctx() helper, which is further used in drm_bridge_connector to switch to ->detect_ctx hook. Furthermore, it optimizes HPD event handling in dw_hdmi_qp Rockchip platform driver to run the detect cycle on the affected connector only. Signed-off-by: Cristian Ciocaltea <[email protected]> --- Changes in v2: - Collected Tested-by tags from Diederik and Maud - Rebased onto latest drm-misc-next - Ensured the recently introduced 'no-hpd' support for dealing with unconnected/repurposed/broken HPD pin is limited to HDMI 1.4 rates - Link to v1: https://lore.kernel.org/r/[email protected] --- Cristian Ciocaltea (4): drm/bridge: Add ->detect_ctx hook and drm_bridge_detect_ctx() drm/bridge-connector: Switch to using ->detect_ctx hook drm/bridge: dw-hdmi-qp: Add high TMDS clock ratio and scrambling support drm/rockchip: dw_hdmi_qp: Do not send HPD events for all connectors drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c | 184 ++++++++++++++++++++++--- drivers/gpu/drm/display/drm_bridge_connector.c | 73 +++++----- drivers/gpu/drm/drm_bridge.c | 58 ++++++++ drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 44 +++--- include/drm/drm_bridge.h | 30 ++++ 5 files changed, 313 insertions(+), 76 deletions(-) --- base-commit: 38feb171b3f92d77e8061fafb5ddfffc2c13b672 change-id: 20251203-dw-hdmi-qp-scramb-cdbd8b57ccf9
