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drm/fb-helper: Push down modeset lock into FB helpers

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Move the modeset locking from drivers into FB helpers.

v2: Also handle intel_connector_add_to_fbdev.

v3: Prevent race in intel_dp_mst with ->detect (Maarten)

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com> (v1)
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170704151833.17304-2-daniel.vetter@ffwll.ch
This commit is contained in:
Thierry Reding 2017-07-04 17:18:21 +02:00 • committed by Daniel Vetter
parent e6090cc9be
commit af2405af07
3 changed files with 37 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

7
drivers/gpu/drm/radeon/radeon_dp_mst.c
View file

@ -300,9 +300,7 @@ static void radeon_dp_register_mst_connector(struct drm_connector *connector)
struct drm_device *dev = connector->dev;
struct radeon_device *rdev = dev->dev_private;
drm_modeset_lock_all(dev);
radeon_fb_add_connector(rdev, connector);
drm_modeset_unlock_all(dev);
drm_connector_register(connector);
}
@ -315,13 +313,8 @@ static void radeon_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
struct radeon_device *rdev = dev->dev_private;
drm_connector_unregister(connector);
/* need to nuke the connector */
drm_modeset_lock_all(dev);
/* dpms off */
radeon_fb_remove_connector(rdev, connector);
drm_connector_cleanup(connector);
drm_modeset_unlock_all(dev);
kfree(connector);
DRM_DEBUG_KMS("\n");