[PATCH 13/28] phy: core: Add devm_of_phy_get to phy-core

Kishon Vijay Abraham I
2014-03-08T09:35:43Z

From: Kamil Debski <k.debski@samsung.com>

Adding devm_of_phy_get will allow to get phys by supplying a
pointer to the struct device_node instead of struct device.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/phy/phy-core.c | 31 +++++++++++++++++++++++++++++++
include/linux/phy/phy.h | 9 +++++++++
2 files changed, 40 insertions(+)

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 7c1b0e1..623b71c 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -526,6 +526,37 @@ struct phy *devm_phy_optional_get(struct device *dev, const char *string)
EXPORT_SYMBOL_GPL(devm_phy_optional_get);

/**
+ * devm_of_phy_get() - lookup and obtain a reference to a phy.
+ * @dev: device that requests this phy
+ * @np: node containing the phy
+ * @con_id: name of the phy from device's point of view
+ *
+ * Gets the phy using of_phy_get(), and associates a device with it using
+ * devres. On driver detach, release function is invoked on the devres data,
+ * then, devres data is freed.
+ */
+struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
+ const char *con_id)
+{
+ struct phy **ptr, *phy;
+
+ ptr = devres_alloc(devm_phy_release, sizeof(*ptr), GFP_KERNEL);
+ if (!ptr)
+ return ERR_PTR(-ENOMEM);
+
+ phy = of_phy_get(np, con_id);
+ if (!IS_ERR(phy)) {
+ *ptr = phy;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return phy;
+}
+EXPORT_SYMBOL_GPL(devm_of_phy_get);
+
+/**
* phy_create() - create a new phy
* @dev: device that is creating the new phy
* @ops: function pointers for performing phy operations
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 50c7629..e2f5ca9 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -149,6 +149,8 @@ struct phy *phy_get(struct device *dev, const char *string);
struct phy *phy_optional_get(struct device *dev, const char *string);
struct phy *devm_phy_get(struct device *dev, const char *string);
struct phy *devm_phy_optional_get(struct device *dev, const char *string);
+struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
+ const char *con_id);
void phy_put(struct phy *phy);
void devm_phy_put(struct device *dev, struct phy *phy);
struct phy *of_phy_get(struct device_node *np, const char *con_id);
@@ -252,6 +254,13 @@ static inline struct phy *devm_phy_optional_get(struct device *dev,
return ERR_PTR(-ENOSYS);
}

+static inline struct phy *devm_of_phy_get(struct device *dev,
+ struct device_node *np,
+ const char *con_id)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
static inline void phy_put(struct phy *phy)
{
}
--
1.7.9.5