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    Subject[PATCH v10 2/4] phy: core: Add devm_of_phy_get to phy-core
    Date
    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>
    ---
    drivers/phy/phy-core.c | 31 +++++++++++++++++++++++++++++++
    include/linux/phy/phy.h | 8 ++++++++
    2 files changed, 39 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 2fe3194..bcbf96c 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 +254,12 @@ static inline struct phy *devm_phy_optional_get(struct device *dev,
    return ERR_PTR(-ENOSYS);
    }

    +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


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