[net-next PATCH v4 11/15] net: mdiobus: Introduce fwnode_mdiobus_register()
From: Calvin Johnson <hidden>
Date: 2021-01-22 17:36:36
Also in:
linux-acpi, linux-arm-kernel, lkml
Subsystem:
ethernet phy library, networking drivers, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Introduce fwnode_mdiobus_register() to register PHYs on the mdiobus. If the fwnode is DT node, then call of_mdiobus_register(). If it is an ACPI node, then call acpi_mdiobus_register(). Signed-off-by: Calvin Johnson <redacted> --- Changes in v4: - Remove redundant else from fwnode_mdiobus_register() Changes in v3: - Use acpi_mdiobus_register() Changes in v2: None drivers/net/phy/mdio_bus.c | 21 +++++++++++++++++++++ include/linux/phy.h | 1 + 2 files changed, 22 insertions(+)
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 44ddfb0ba99f..362e12853f30 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c@@ -9,6 +9,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/acpi.h> +#include <linux/acpi_mdio.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/errno.h>
@@ -568,6 +569,26 @@ static int mdiobus_create_device(struct mii_bus *bus, return ret; } +/** + * fwnode_mdiobus_register - Register mii_bus and create PHYs from fwnode + * @mdio: pointer to mii_bus structure + * @fwnode: pointer to fwnode of MDIO bus. + * + * This function returns of_mdiobus_register() for DT and + * acpi_mdiobus_register() for ACPI. + */ +int fwnode_mdiobus_register(struct mii_bus *mdio, struct fwnode_handle *fwnode) +{ + if (is_of_node(fwnode)) + return of_mdiobus_register(mdio, to_of_node(fwnode)); + + if (is_acpi_node(fwnode)) + return acpi_mdiobus_register(mdio, fwnode); + + return -EINVAL; +} +EXPORT_SYMBOL(fwnode_mdiobus_register); + /** * __mdiobus_register - bring up all the PHYs on a given bus and attach them to bus * @bus: target mii_bus
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 957ce3c9b058..765e1844cfdb 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h@@ -387,6 +387,7 @@ static inline struct mii_bus *mdiobus_alloc(void) return mdiobus_alloc_size(0); } +int fwnode_mdiobus_register(struct mii_bus *mdio, struct fwnode_handle *fwnode); int __mdiobus_register(struct mii_bus *bus, struct module *owner); int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus, struct module *owner);
--
2.17.1