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phy: core: Add devm_of_phy_get to phy-core 

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>
This commit is contained in:
Kamil Debski 2014-03-06 12:16:47 +01:00 committed by Kishon Vijay Abraham I
parent 0b3f3b2c77
commit b5d682f4eb
2 changed files with 40 additions and 0 deletions
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31
drivers/phy/phy-core.c
View File

@ -525,6 +525,37 @@ 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

9
include/linux/phy/phy.h
View File

@ -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)
{
}