diff options
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_dp.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index 3edefa0f1795..49b4b24f499f 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -1566,14 +1566,13 @@ static int zynqmp_dp_bridge_atomic_check(struct drm_bridge *bridge, return 0; } -static enum drm_connector_status zynqmp_dp_bridge_detect(struct drm_bridge *bridge) +static enum drm_connector_status __zynqmp_dp_bridge_detect(struct zynqmp_dp *dp) { - struct zynqmp_dp *dp = bridge_to_dp(bridge); struct zynqmp_dp_link_config *link_config = &dp->link_config; u32 state, i; int ret; - mutex_lock(&dp->lock); + lockdep_assert_held(&dp->lock); /* * This is from heuristic. It takes some delay (ex, 100 ~ 500 msec) to @@ -1602,16 +1601,26 @@ static enum drm_connector_status zynqmp_dp_bridge_detect(struct drm_bridge *brid dp->num_lanes); dp->status = connector_status_connected; - mutex_unlock(&dp->lock); return connector_status_connected; } disconnected: dp->status = connector_status_disconnected; - mutex_unlock(&dp->lock); return connector_status_disconnected; } +static enum drm_connector_status zynqmp_dp_bridge_detect(struct drm_bridge *bridge) +{ + struct zynqmp_dp *dp = bridge_to_dp(bridge); + enum drm_connector_status ret; + + mutex_lock(&dp->lock); + ret = __zynqmp_dp_bridge_detect(dp); + mutex_unlock(&dp->lock); + + return ret; +} + static const struct drm_edid *zynqmp_dp_bridge_edid_read(struct drm_bridge *bridge, struct drm_connector *connector) { @@ -1695,7 +1704,10 @@ static void zynqmp_dp_hpd_work_func(struct work_struct *work) struct zynqmp_dp *dp = container_of(work, struct zynqmp_dp, hpd_work); enum drm_connector_status status; - status = zynqmp_dp_bridge_detect(&dp->bridge); + mutex_lock(&dp->lock); + status = __zynqmp_dp_bridge_detect(dp); + mutex_unlock(&dp->lock); + drm_bridge_hpd_notify(&dp->bridge, status); } |