When a uevent only updates a single connector, add a CONNECTOR property to the uevent. This allows user-space to ignore other connectors when handling the uevent. This is purely an optimization, drivers can still send a uevent without the CONNECTOR property.
The CONNECTOR property is already set when sending HDCP property update uevents, see drm_sysfs_connector_status_event.
This has been tested with a wlroots patch [1].
amdgpu and the probe-helper has been updated to use these new fine-grained uevents.
Changes in v4: address comments from Ville, Maxime and Sam.
Simon Ser (6): drm/sysfs: introduce drm_sysfs_connector_hotplug_event drm/probe-helper: add drm_kms_helper_connector_hotplug_event drm/connector: use drm_sysfs_connector_hotplug_event amdgpu: use drm_kms_helper_connector_hotplug_event drm/probe-helper: use drm_kms_helper_connector_hotplug_event i915/display/dp: send a more fine-grained link-status uevent
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 ++-- .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 4 +- drivers/gpu/drm/drm_connector.c | 2 +- drivers/gpu/drm/drm_probe_helper.c | 48 +++++++++++++++---- drivers/gpu/drm/drm_sysfs.c | 25 ++++++++++ drivers/gpu/drm/i915/display/intel_dp.c | 2 +- include/drm/drm_probe_helper.h | 1 + include/drm/drm_sysfs.h | 1 + 8 files changed, 75 insertions(+), 16 deletions(-)
base-commit: f6632721cd6231e1bf28b5317dcc7543e43359f7