drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c | 174 +++++++++++++++++++++++-- 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, 308 insertions(+), 71 deletions(-)
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, optimize 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 <cristian.ciocaltea@collabora.com>
---
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 | 174 +++++++++++++++++++++++--
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, 308 insertions(+), 71 deletions(-)
---
base-commit: ac5b392a8c355001c4c3f230a0e4b1f904e359ca
change-id: 20251203-dw-hdmi-qp-scramb-cdbd8b57ccf9
On Wed Dec 3, 2025 at 7:27 PM CET, Cristian Ciocaltea wrote: > 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. I tested this patch set with my 4K TV and Rock 5B and without it I did not see 4K@60, only 4K@30. With this patch set also a number of 4K related display settings appeared which were not there without it. So thanks a lot for this patch set. Feel free to add: Tested-by: Diederik de Haas <diederik@cknow-tech.com> Cheers, Diederik > 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, optimize 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 <cristian.ciocaltea@collabora.com> > --- > 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 | 174 +++++++++++++++++++++++-- > 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, 308 insertions(+), 71 deletions(-) > --- > base-commit: ac5b392a8c355001c4c3f230a0e4b1f904e359ca > change-id: 20251203-dw-hdmi-qp-scramb-cdbd8b57ccf9 > > > _______________________________________________ > Linux-rockchip mailing list > Linux-rockchip@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-rockchip
On 12/3/25 8:27 PM, Cristian Ciocaltea wrote: > 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. Please also try the following PHY patch if you encounter issues while testing 1080p@120Hz with 10-bit RGB: https://lore.kernel.org/all/20251204-phy-hdptx-pll-fix-v1-1-d94fd6cfd59b@collabora.com/
Awesome work! I've been waiting for this feature! I can now actually get 1440p100 on my display and 4k60 on my tv over HDMI. Tested-by: Maud Spierings <maud_spierings@hotmail.com> Kind regards, Maud > 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, optimize 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 <cristian.ciocaltea@collabora.com> > --- > 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 | 174 +++++++++++++++++++++++-- > 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, 308 insertions(+), 71 deletions(-) > --- > base-commit: ac5b392a8c355001c4c3f230a0e4b1f904e359ca > change-id: 20251203-dw-hdmi-qp-scramb-cdbd8b57ccf9
On 12/7/25 3:16 PM, Maud Spierings wrote: > Awesome work! I've been waiting for this feature! > > I can now actually get 1440p100 on my display and 4k60 on my tv over HDMI. > > Tested-by: Maud Spierings <maud_spierings@hotmail.com> Thanks, Cristian
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