[PATCH net-next 08/10] dpll: zl3073x: update locking comments

[Ivan Vecera <ivecera@redhat.com>]

Callbacks are serialized by the DPLL core domain lock instead of dpll_lock.
All channels of a chip belong to one domain, so what the comments rely on
still holds.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
---
 drivers/dpll/zl3073x/dpll.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/dpll/zl3073x/dpll.c b/drivers/dpll/zl3073x/dpll.c
index 1cdadb8e46fb2d..6e5e2bb41f55d6 100644
--- a/drivers/dpll/zl3073x/dpll.c
+++ b/drivers/dpll/zl3073x/dpll.c
@@ -349,9 +349,10 @@ zl3073x_dpll_input_pin_ref_sync_set(const struct dpll_pin *dpll_pin,
 	if (rc)
 		goto unlock;
 
-	/* All code paths accessing per-channel reference priorities are
-	 * serialized by the subsystem dpll_lock, so it is safe to release
-	 * our lock here before iterating over the other channels.
+	/* All callbacks accessing per-channel reference priorities are
+	 * serialized by the DPLL core domain lock shared by all channels of
+	 * the chip, so it is safe to release our lock here before iterating
+	 * over the other channels.
 	 */
 	mutex_unlock(&zldpll->lock);
 
@@ -2401,7 +2402,7 @@ zl3073x_dpll_changes_check(struct zl3073x_dpll *zldpll)
 	mutex_unlock(&zldpll->lock);
 
 	/* Send notifications outside the lock to avoid ABBA deadlock
-	 * with dpll_lock taken by notification functions.
+	 * with the DPLL core domain lock taken by notification functions.
 	 */
 	if (dev_changed)
 		dpll_device_change_ntf(zldpll->dpll_dev);
-- 
2.56.0