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authorStanislav Lisovskiy <stanislav.lisovskiy@intel.com>2020-06-30 03:26:59 +0300
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2020-06-30 14:31:27 +0300
commit5186421cbfe250002308d4d759674214b385752f (patch)
tree671cdf3d9832531890773b40db6c094cba4cae9f /include/drm/drm_connector.h
parent536faa450e17f32fddb1a2124e3df71a966122cd (diff)
downloadlinux-5186421cbfe250002308d4d759674214b385752f.tar.xz
drm: Introduce epoch counter to drm_connector
This counter will be used by drm_helper_probe_detect caller to determine if anything had changed(including edid, connection status and etc). Hardware specific driver detect hooks are responsible for updating this counter when some change is detected to notify the drm part, which can trigger for example hotplug event. Also now call drm_connector_update_edid_property right after we get edid always to make sure there is a unified way to handle edid change, without having to change tons of source code as currently drm_connector_update_edid_property is called only in certain cases like reprobing and not right after edid is actually updated. v2: Added documentation for the new counter. Rename change_counter to epoch_counter. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105540 Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200630002700.5451-3-kunal1.joshi@intel.com
Diffstat (limited to 'include/drm/drm_connector.h')
-rw-r--r--include/drm/drm_connector.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index fd543d1db9b2..6a451b86c454 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1329,6 +1329,8 @@ struct drm_connector {
enum drm_connector_force force;
/** @override_edid: has the EDID been overwritten through debugfs for testing? */
bool override_edid;
+ /** @epoch_counter: used to detect any other changes in connector, besides status */
+ u64 epoch_counter;
/**
* @possible_encoders: Bit mask of encoders that can drive this