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path: root/drivers/gpu/drm/drm_crtc_helper.c
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Diffstat (limited to 'drivers/gpu/drm/drm_crtc_helper.c')
-rw-r--r--drivers/gpu/drm/drm_crtc_helper.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 764401951041..9b2a54117c91 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -860,19 +860,24 @@ static void output_poll_execute(struct slow_work *work)
}
}
-void drm_kms_helper_poll_init(struct drm_device *dev)
+void drm_kms_helper_poll_disable(struct drm_device *dev)
+{
+ if (!dev->mode_config.poll_enabled)
+ return;
+ delayed_slow_work_cancel(&dev->mode_config.output_poll_slow_work);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_disable);
+
+void drm_kms_helper_poll_enable(struct drm_device *dev)
{
- struct drm_connector *connector;
bool poll = false;
+ struct drm_connector *connector;
int ret;
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (connector->polled)
poll = true;
}
- slow_work_register_user(THIS_MODULE);
- delayed_slow_work_init(&dev->mode_config.output_poll_slow_work,
- &output_poll_ops);
if (poll) {
ret = delayed_slow_work_enqueue(&dev->mode_config.output_poll_slow_work, DRM_OUTPUT_POLL_PERIOD);
@@ -880,11 +885,22 @@ void drm_kms_helper_poll_init(struct drm_device *dev)
DRM_ERROR("delayed enqueue failed %d\n", ret);
}
}
+EXPORT_SYMBOL(drm_kms_helper_poll_enable);
+
+void drm_kms_helper_poll_init(struct drm_device *dev)
+{
+ slow_work_register_user(THIS_MODULE);
+ delayed_slow_work_init(&dev->mode_config.output_poll_slow_work,
+ &output_poll_ops);
+ dev->mode_config.poll_enabled = true;
+
+ drm_kms_helper_poll_enable(dev);
+}
EXPORT_SYMBOL(drm_kms_helper_poll_init);
void drm_kms_helper_poll_fini(struct drm_device *dev)
{
- delayed_slow_work_cancel(&dev->mode_config.output_poll_slow_work);
+ drm_kms_helper_poll_disable(dev);
slow_work_unregister_user(THIS_MODULE);
}
EXPORT_SYMBOL(drm_kms_helper_poll_fini);