phy: core: Add *release* phy_ops invoked when the consumer relinquishes PHY

Add a new phy_ops *release* invoked when the consumer relinquishes the
PHY using phy_put/devm_phy_put. The initializations done by the PHY
driver in of_xlate call back can be can be cleaned up here.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index cb38f6e..b9a4ebf 100644 (file)
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -564,6 +564,11 @@ void phy_put(struct phy *phy)
        if (!phy || IS_ERR(phy))
                return;
 
+       mutex_lock(&phy->mutex);
+       if (phy->ops->release)
+               phy->ops->release(phy);
+       mutex_unlock(&phy->mutex);
+
        module_put(phy->ops->owner);
        put_device(&phy->dev);
 }

diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 3f350e2..ef13aea 100644 (file)
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -64,6 +64,7 @@ union phy_configure_opts {
  * @set_mode: set the mode of the phy
  * @reset: resetting the phy
  * @calibrate: calibrate the phy
+ * @release: ops to be performed while the consumer relinquishes the PHY
  * @owner: the module owner containing the ops
  */
 struct phy_ops {
@@ -105,6 +106,7 @@ struct phy_ops {
                            union phy_configure_opts *opts);
        int     (*reset)(struct phy *phy);
        int     (*calibrate)(struct phy *phy);
+       void    (*release)(struct phy *phy);
        struct module *owner;
 };