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author | Kamil Debski <k.debski@samsung.com> | 2014-03-06 12:16:47 +0100 |
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committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2014-05-13 05:29:38 -0700 |
commit | 53330dde8c25c6a1a9fc73222470183ff8240845 (patch) | |
tree | dc4ba94f90069c0a1dbccbd19e1b707488f94808 /drivers | |
parent | 3b660162cdc79008eb50e6361ece5bb7cb1d4ebf (diff) | |
download | linux-3.10-53330dde8c25c6a1a9fc73222470183ff8240845.tar.gz linux-3.10-53330dde8c25c6a1a9fc73222470183ff8240845.tar.bz2 linux-3.10-53330dde8c25c6a1a9fc73222470183ff8240845.zip |
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>
[backport from upstream commit b5d682f4eb76c98f2ca5658926df43dd05cf2c37]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: Ie1d75af85ef1072457074d94ab268c5d570ed930
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/phy/phy-core.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 7c1b0e14a23..623b71c54b3 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 |