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Date: Fri, 20 Mar 2015 14:07:08 -0700 From: Arun Ramamurthy <arun.ramamurthy@...adcom.com> To: Kishon Vijay Abraham I <kishon@...com>, Tony Prisk <linux@...sktech.co.nz>, Alan Stern <stern@...land.harvard.edu>, "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>, Arnd Bergmann <arnd@...db.de> CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-usb@...r.kernel.org>, Dmitry Torokhov <dtor@...gle.com>, "Anatol Pomazau" <anatol@...gle.com>, Jonathan Richardson <jonathar@...adcom.com>, Scott Branden <sbranden@...adcom.com>, Ray Jui <rjui@...adcom.com>, <bcm-kernel-feedback-list@...adcom.com>, Arun Ramamurthy <arun.ramamurthy@...adcom.com> Subject: [PATCH 1/3] phy: core: Add devm_of_phy_get_by_index to phy-core Adding devm_of_phy_get_by_index to get phys by supplying an index and not a phy name when multiple phys are declared Reviewed-by: Ray Jui <rjui@...adcom.com> Reviewed-by: Scott Branden <sbranden@...adcom.com> Signed-off-by: Arun Ramamurthy <arun.ramamurthy@...adcom.com> --- drivers/phy/phy-core.c | 30 ++++++++++++++++++++++++++++++ include/linux/phy/phy.h | 2 ++ 2 files changed, 32 insertions(+) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index a12d353..0c03876 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -622,6 +622,36 @@ struct phy *devm_of_phy_get(struct device *dev, struct device_node *np, EXPORT_SYMBOL_GPL(devm_of_phy_get); /** + * devm_of_phy_get_by_index() - lookup and obtain a reference to a phy by index. + * @dev: device that requests this phy + * @np: node containing the phy + * @index: index of the phy + * + * 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_by_index(struct device *dev, struct device_node *np, + int index) +{ + 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, index); + if (!IS_ERR(phy)) { + *ptr = phy; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return phy; +} +/** * phy_create() - create a new phy * @dev: device that is creating the new phy * @node: device node of the phy diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index a0197fa..ae2ffaf 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -133,6 +133,8 @@ 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); +struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np, + int index); 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); -- 2.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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