On Wed, Oct 12, 2022 at 12:20 PM Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> wrote: > > Some bridges are able to update HDCP status from userspace request if > they support HDCP. > > HDCP property is the same as other connector properties that need to be > created after the connecter is initialized and before the connector is > registered. > anx7625 is a user for this. > Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> > Reported-by: kernel test robot <lkp@xxxxxxxxx> > --- > v2: Fix compile error when config is not set. > --- > drivers/gpu/drm/drm_bridge_connector.c | 3 +++ > include/drm/display/drm_hdcp_helper.h | 8 ++++++++ > 2 files changed, 11 insertions(+) > > diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c > index 1c7d936523df5..a3b9ef8dc3f0b 100644 > --- a/drivers/gpu/drm/drm_bridge_connector.c > +++ b/drivers/gpu/drm/drm_bridge_connector.c > @@ -7,6 +7,7 @@ > #include <linux/module.h> > #include <linux/slab.h> > > +#include <drm/display/drm_hdcp_helper.h> > #include <drm/drm_atomic_state_helper.h> > #include <drm/drm_bridge.h> > #include <drm/drm_bridge_connector.h> > @@ -398,6 +399,8 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm, > if (panel_bridge) > drm_panel_bridge_set_orientation(connector, panel_bridge); > > + drm_connector_attach_content_protection_property(connector, true); > + > return connector; > } > EXPORT_SYMBOL_GPL(drm_bridge_connector_init); > diff --git a/include/drm/display/drm_hdcp_helper.h b/include/drm/display/drm_hdcp_helper.h > index 8aaf87bf27351..c65d9f06a2532 100644 > --- a/include/drm/display/drm_hdcp_helper.h > +++ b/include/drm/display/drm_hdcp_helper.h > @@ -15,8 +15,16 @@ struct drm_device; > struct drm_connector; > > int drm_hdcp_check_ksvs_revoked(struct drm_device *dev, u8 *ksvs, u32 ksv_count); > +#if defined(CONFIG_DRM_DISPLAY_HDCP_HELPER) > int drm_connector_attach_content_protection_property(struct drm_connector *connector, > bool hdcp_content_type); > +#else > +static inline int drm_connector_attach_content_protection_property(struct drm_connector *connector, > + bool hdcp_content_type) > +{ > + return 0; > +} > +#endif > void drm_hdcp_update_content_protection(struct drm_connector *connector, u64 val); > > #endif > -- > 2.38.0.rc1.362.ged0d419d3c-goog >