[PATCH v2 2/4] phy: core: Add common helper for get phy phandle by index
From: Inochi Amaoto <inochiama@gmail.com>
Date: 2026-09-04 08:37:59
Also in:
lkml
Subsystem:
generic phy framework, the rest · Maintainers:
Vinod Koul, Linus Torvalds
Several phy helper use index to get phy phandle of a device node, add a common function for the future reuse. Signed-off-by: Inochi Amaoto <inochiama@gmail.com> --- drivers/phy/phy-core.c | 51 +++++++++++++++++++++++++----------------- 1 file changed, 30 insertions(+), 21 deletions(-)
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index ea79913fbb87..a7d7acb5d3c2 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c@@ -681,33 +681,49 @@ static struct phy *_of_phy_get(struct device_node *np, int index) return phy; } +/** + * of_phy_get_by_index() - lookup and obtain a reference to a phy using a + * device_node by index. + * @np: device_node for which to get the phy + * @index: index of the phy from device's point of view + * + * Returns: the phy driver, after getting a refcount to it; or + * -ENODEV if there is no such phy. The caller is responsible for + * calling of_phy_put() to release that count. + */ +static struct phy *of_phy_get_by_index(struct device_node *np, int index) +{ + struct phy *phy; + + phy = _of_phy_get(np, index); + if (IS_ERR(phy)) + return phy; + + if (!try_module_get(phy->ops->owner)) + return ERR_PTR(-EPROBE_DEFER); + + get_device(&phy->dev); + + return phy; +} + /** * of_phy_get() - lookup and obtain a reference to a phy using a device_node. * @np: device_node for which to get the phy * @con_id: name of the phy from device's point of view * - * Returns the phy driver, after getting a refcount to it; or + * Returns: the phy driver, after getting a refcount to it; or * -ENODEV if there is no such phy. The caller is responsible for * calling of_phy_put() to release that count. */ struct phy *of_phy_get(struct device_node *np, const char *con_id) { - struct phy *phy = NULL; int index = 0; if (con_id) index = of_property_match_string(np, "phy-names", con_id); - phy = _of_phy_get(np, index); - if (IS_ERR(phy)) - return phy; - - if (!try_module_get(phy->ops->owner)) - return ERR_PTR(-EPROBE_DEFER); - - get_device(&phy->dev); - - return phy; + return of_phy_get_by_index(np, index); } EXPORT_SYMBOL_GPL(of_phy_get);
@@ -957,7 +973,7 @@ EXPORT_SYMBOL_GPL(devm_of_phy_optional_get); * @np: node containing the phy * @index: index of the phy * - * Gets the phy using _of_phy_get(), then gets a refcount to it, + * Gets the phy using of_phy_get_by_index(), then gets a refcount to it, * and associates a device with it using devres. On driver detach, * release function is invoked on the devres data, * then, devres data is freed.
@@ -972,19 +988,12 @@ struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np, if (!ptr) return ERR_PTR(-ENOMEM); - phy = _of_phy_get(np, index); + phy = of_phy_get_by_index(np, index); if (IS_ERR(phy)) { devres_free(ptr); return phy; } - if (!try_module_get(phy->ops->owner)) { - devres_free(ptr); - return ERR_PTR(-EPROBE_DEFER); - } - - get_device(&phy->dev); - *ptr = phy; devres_add(dev, ptr);
--
2.55.0
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