drm: Add a non-locking version of drm_kms_helper_poll_enable(), v2
drm_kms_helper_poll_enable() was converted to lock the mode_config
mutex in commit 8c4ccc4ab6f64e859d4ff8d7c02c2ed2e956e07f
("drm/probe-helper: Grab mode_config.mutex in poll_init/enable").
This disregarded the cases where this function is called from a context
where this mutex is already locked.
Add a non-locking version as well.
Changes since v1:
- use function name suffix '_locked' for the function that
is to be called from a locked context.
Signed-off-by: Egbert Eich <eich@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 2a747a9..3febb4b 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -240,5 +240,6 @@
extern void drm_kms_helper_poll_disable(struct drm_device *dev);
extern void drm_kms_helper_poll_enable(struct drm_device *dev);
+extern void drm_kms_helper_poll_enable_locked(struct drm_device *dev);
#endif