From: Dave Airlie <airlied@xxxxxxxxxx>
In order to get correct ordering at hot-unplug for userspace,
we need to tear down all the sysfs bits at the correct time.
This adds a helper to allow drivers to remove the sysfs nodes
for all connectors.
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
drivers/gpu/drm/drm_crtc.c | 11 +++++++++++
include/drm/drm_crtc.h | 2 ++
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 2c27a2e..e6a2a3e 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -523,6 +523,17 @@ void drm_connector_cleanup(struct drm_connector *connector)
}
EXPORT_SYMBOL(drm_connector_cleanup);
+void drm_connector_unplug_all(struct drm_device *dev)
+{
+ struct drm_connector *connector;
+
+ /* taking the mode config mutex ends up in a clash with sysfs */
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+ drm_sysfs_connector_remove(connector);
+
+}
+EXPORT_SYMBOL(drm_connector_unplug_all);
+
void drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
const struct drm_encoder_funcs *funcs,
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 783322b..927e31b 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -825,6 +825,8 @@ extern void drm_connector_init(struct drm_device *dev,
int connector_type);
extern void drm_connector_cleanup(struct drm_connector *connector);
+/* helper to unplug all connectors from sysfs for device */
+extern void drm_connector_unplug_all(struct drm_device *dev);
extern void drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
--
1.7.6
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