summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/drm_probe_helper.c
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2015-10-13 19:00:14 +0200
committerThomas Gleixner <tglx@linutronix.de>2015-10-13 19:00:14 +0200
commite50226b4b86755e65aef2129e94d952fee3df722 (patch)
treed4dd925fc7f5c6fe46b647c8027911190595f014 /drivers/gpu/drm/drm_probe_helper.c
parente9849777d0e27cdd2902805be51da73e7c79578c (diff)
parent25cb62b76430a91cc6195f902e61c2cb84ade622 (diff)
Merge branch 'linus' into irq/core
Bring in upstream updates for patches which depend on them
Diffstat (limited to 'drivers/gpu/drm/drm_probe_helper.c')
-rw-r--r--drivers/gpu/drm/drm_probe_helper.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index d734780b31c0..a18164f2f6d2 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -94,7 +94,18 @@ static int drm_helper_probe_add_cmdline_mode(struct drm_connector *connector)
}
#define DRM_OUTPUT_POLL_PERIOD (10*HZ)
-static void __drm_kms_helper_poll_enable(struct drm_device *dev)
+/**
+ * drm_kms_helper_poll_enable_locked - re-enable output polling.
+ * @dev: drm_device
+ *
+ * This function re-enables the output polling work without
+ * locking the mode_config mutex.
+ *
+ * This is like drm_kms_helper_poll_enable() however it is to be
+ * called from a context where the mode_config mutex is locked
+ * already.
+ */
+void drm_kms_helper_poll_enable_locked(struct drm_device *dev)
{
bool poll = false;
struct drm_connector *connector;
@@ -113,6 +124,8 @@ static void __drm_kms_helper_poll_enable(struct drm_device *dev)
if (poll)
schedule_delayed_work(&dev->mode_config.output_poll_work, DRM_OUTPUT_POLL_PERIOD);
}
+EXPORT_SYMBOL(drm_kms_helper_poll_enable_locked);
+
static int drm_helper_probe_single_connector_modes_merge_bits(struct drm_connector *connector,
uint32_t maxX, uint32_t maxY, bool merge_type_bits)
@@ -174,7 +187,7 @@ static int drm_helper_probe_single_connector_modes_merge_bits(struct drm_connect
/* Re-enable polling in case the global poll config changed. */
if (drm_kms_helper_poll != dev->mode_config.poll_running)
- __drm_kms_helper_poll_enable(dev);
+ drm_kms_helper_poll_enable_locked(dev);
dev->mode_config.poll_running = drm_kms_helper_poll;
@@ -428,7 +441,7 @@ EXPORT_SYMBOL(drm_kms_helper_poll_disable);
void drm_kms_helper_poll_enable(struct drm_device *dev)
{
mutex_lock(&dev->mode_config.mutex);
- __drm_kms_helper_poll_enable(dev);
+ drm_kms_helper_poll_enable_locked(dev);
mutex_unlock(&dev->mode_config.mutex);
}
EXPORT_SYMBOL(drm_kms_helper_poll_enable);