On 10/22/2026 9:27 PM, Dmitry Baryshkov wrote: > The DisplayPort standard defines a special kind of HPD events called > IRQ_HPD. These events are used to notify DP Source about the events on > the Sink side. Pass down the extra status to the bridge drivers via the > hpd_notify() callback, letting DP bridges to act accordingly. > > Signed-off-by: Dmitry Baryshkov <[email protected]> > --- > drivers/gpu/drm/bridge/lontium-lt9611uxc.c | 3 ++- > drivers/gpu/drm/display/drm_bridge_connector.c | 2 +- > drivers/gpu/drm/meson/meson_encoder_hdmi.c | 3 ++- > drivers/gpu/drm/msm/dp/dp_display.c | 3 ++- > drivers/gpu/drm/msm/dp/dp_drm.h | 3 ++- > drivers/gpu/drm/omapdrm/dss/hdmi4.c | 3 ++- > include/drm/drm_bridge.h | 3 ++- > 7 files changed, 13 insertions(+), 7 deletions(-) >
Reviewed-by: Chaoyi Chen <[email protected]> > diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c > b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c > index b3bb7f2cebb3..b1ffbab89a16 100644 > --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c > +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c > @@ -429,7 +429,8 @@ static const struct drm_edid > *lt9611uxc_bridge_edid_read(struct drm_bridge *brid > > static void lt9611uxc_bridge_hpd_notify(struct drm_bridge *bridge, > struct drm_connector *connector, > - enum drm_connector_status status) > + enum drm_connector_status status, > + enum drm_connector_dp_event event) > { > const struct drm_edid *drm_edid; > > diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c > b/drivers/gpu/drm/display/drm_bridge_connector.c > index 898273f60cf6..1b0a1a00d8eb 100644 > --- a/drivers/gpu/drm/display/drm_bridge_connector.c > +++ b/drivers/gpu/drm/display/drm_bridge_connector.c > @@ -151,7 +151,7 @@ static void drm_bridge_connector_hpd_notify(struct > drm_connector *connector, > /* Notify all bridges in the pipeline of hotplug events. */ > drm_for_each_bridge_in_chain(bridge_connector->encoder, bridge) { > if (bridge->funcs->hpd_notify) > - bridge->funcs->hpd_notify(bridge, connector, status); > + bridge->funcs->hpd_notify(bridge, connector, status, > event); > } > } > > diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c > b/drivers/gpu/drm/meson/meson_encoder_hdmi.c > index c4355c5cc340..a637613ae2e1 100644 > --- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c > +++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c > @@ -323,7 +323,8 @@ static int meson_encoder_hdmi_atomic_check(struct > drm_bridge *bridge, > > static void meson_encoder_hdmi_hpd_notify(struct drm_bridge *bridge, > struct drm_connector *connector, > - enum drm_connector_status status) > + enum drm_connector_status status, > + enum drm_connector_dp_event event) > { > struct meson_encoder_hdmi *encoder_hdmi = > bridge_to_meson_encoder_hdmi(bridge); > > diff --git a/drivers/gpu/drm/msm/dp/dp_display.c > b/drivers/gpu/drm/msm/dp/dp_display.c > index 6abe30bdff12..fa8942922b53 100644 > --- a/drivers/gpu/drm/msm/dp/dp_display.c > +++ b/drivers/gpu/drm/msm/dp/dp_display.c > @@ -1541,7 +1541,8 @@ void msm_dp_bridge_hpd_disable(struct drm_bridge > *bridge) > > void msm_dp_bridge_hpd_notify(struct drm_bridge *bridge, > struct drm_connector *connector, > - enum drm_connector_status status) > + enum drm_connector_status status, > + enum drm_connector_dp_event event) > { > struct msm_dp_bridge *msm_dp_bridge = to_dp_bridge(bridge); > struct msm_dp *msm_dp_display = msm_dp_bridge->msm_dp_display; > diff --git a/drivers/gpu/drm/msm/dp/dp_drm.h b/drivers/gpu/drm/msm/dp/dp_drm.h > index da412c788503..8f2f4201da60 100644 > --- a/drivers/gpu/drm/msm/dp/dp_drm.h > +++ b/drivers/gpu/drm/msm/dp/dp_drm.h > @@ -31,6 +31,7 @@ void msm_dp_bridge_hpd_enable(struct drm_bridge *bridge); > void msm_dp_bridge_hpd_disable(struct drm_bridge *bridge); > void msm_dp_bridge_hpd_notify(struct drm_bridge *bridge, > struct drm_connector *connector, > - enum drm_connector_status status); > + enum drm_connector_status status, > + enum drm_connector_dp_event event); > > #endif /* _DP_DRM_H_ */ > diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c > b/drivers/gpu/drm/omapdrm/dss/hdmi4.c > index bd6c4d2dcdc8..72972a6fe989 100644 > --- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c > +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c > @@ -429,7 +429,8 @@ static void hdmi4_bridge_disable(struct drm_bridge > *bridge, > > static void hdmi4_bridge_hpd_notify(struct drm_bridge *bridge, > struct drm_connector *connector, > - enum drm_connector_status status) > + enum drm_connector_status status, > + enum drm_connector_dp_event event) > { > struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); > > diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h > index 1981d24a700d..6382ef5f1ea2 100644 > --- a/include/drm/drm_bridge.h > +++ b/include/drm/drm_bridge.h > @@ -509,7 +509,8 @@ struct drm_bridge_funcs { > */ > void (*hpd_notify)(struct drm_bridge *bridge, > struct drm_connector *connector, > - enum drm_connector_status status); > + enum drm_connector_status status, > + enum drm_connector_dp_event event); > > /** > * @hpd_enable: > -- Best, Chaoyi
