From: Calvin Johnson <calvin.johnson@oss.nxp.com>
To: Grant Likely <grant.likely@arm.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Jeremy Linton <jeremy.linton@arm.com>,
Andrew Lunn <andrew@lunn.ch>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
Cristi Sovaiala <cristian.sovaiala@nxp.com>,
Florin Laurentiu Chiculita <florinlaurentiu.chiculita@nxp.com>,
Ioana Ciornei <ioana.ciornei@nxp.com>,
Madalin Bucur <madalin.bucur@oss.nxp.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Marcin Wojtas <mw@semihalf.com>,
Pieter Jansen Van Vuuren <pieter.jansenvv@bamboosystems.io>,
Jon <jon@solid-run.com>
Cc: linux.cj@gmail.com, Laurentiu Tudor <laurentiu.tudor@nxp.com>,
Diana Madalina Craciun <diana.craciun@nxp.com>,
linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org,
Calvin Johnson <calvin.johnson@oss.nxp.com>,
"David S. Miller" <davem@davemloft.net>,
Heiner Kallweit <hkallweit1@gmail.com>,
Jakub Kicinski <kuba@kernel.org>
Subject: [net-next PATCH v2 13/14] net: phy: Introduce fwnode_mdio_find_device()
Date: Tue, 15 Dec 2020 22:13:14 +0530 [thread overview]
Message-ID: <20201215164315.3666-14-calvin.johnson@oss.nxp.com> (raw)
In-Reply-To: <20201215164315.3666-1-calvin.johnson@oss.nxp.com>
Define fwnode_mdio_find_device() to get a pointer to the
mdio_device from fwnode passed to the function.
Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com>
---
Changes in v2: None
drivers/net/mdio/of_mdio.c | 11 +----------
drivers/net/phy/phy_device.c | 23 +++++++++++++++++++++++
include/linux/phy.h | 6 ++++++
3 files changed, 30 insertions(+), 10 deletions(-)
diff --git a/drivers/net/mdio/of_mdio.c b/drivers/net/mdio/of_mdio.c
index fa914d285271..1b561849269e 100644
--- a/drivers/net/mdio/of_mdio.c
+++ b/drivers/net/mdio/of_mdio.c
@@ -300,16 +300,7 @@ EXPORT_SYMBOL(of_mdiobus_register);
*/
struct mdio_device *of_mdio_find_device(struct device_node *np)
{
- struct device *d;
-
- if (!np)
- return NULL;
-
- d = bus_find_device_by_of_node(&mdio_bus_type, np);
- if (!d)
- return NULL;
-
- return to_mdio_device(d);
+ return fwnode_mdio_find_device(of_fwnode_handle(np));
}
EXPORT_SYMBOL(of_mdio_find_device);
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 6fad89c02c5a..17d20e6d5416 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2851,6 +2851,29 @@ static bool phy_drv_supports_irq(struct phy_driver *phydrv)
return phydrv->config_intr && phydrv->handle_interrupt;
}
+/**
+ * fwnode_mdio_find_device - Given a fwnode, find the mdio_device
+ * @np: pointer to the mdio_device's fwnode
+ *
+ * If successful, returns a pointer to the mdio_device with the embedded
+ * struct device refcount incremented by one, or NULL on failure.
+ * The caller should call put_device() on the mdio_device after its use
+ */
+struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode)
+{
+ struct device *d;
+
+ if (!fwnode)
+ return NULL;
+
+ d = bus_find_device_by_fwnode(&mdio_bus_type, fwnode);
+ if (!d)
+ return NULL;
+
+ return to_mdio_device(d);
+}
+EXPORT_SYMBOL(fwnode_mdio_find_device);
+
/**
* fwnode_phy_find_device - Find phy_device on the mdiobus for the provided
* phy_fwnode.
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 67ea4ca6f76f..5a0c290ff0f4 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1343,6 +1343,7 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
struct phy_c45_device_ids *c45_ids);
#if IS_ENABLED(CONFIG_PHYLIB)
int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id);
+struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode);
struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode);
struct phy_device *device_phy_find_device(struct device *dev);
struct fwnode_handle *fwnode_get_phy_node(struct fwnode_handle *fwnode);
@@ -1355,6 +1356,11 @@ static inline int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id)
return 0;
}
static inline
+struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode)
+{
+ return 0;
+}
+static inline
struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode)
{
return NULL;
--
2.17.1
next prev parent reply other threads:[~2020-12-15 16:50 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-15 16:43 [net-next PATCH v2 00/14] ACPI support for dpaa2 driver Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 01/14] Documentation: ACPI: DSD: Document MDIO PHY Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 02/14] net: phy: Introduce phy related fwnode functions Calvin Johnson
2020-12-15 17:23 ` Andy Shevchenko
2020-12-17 7:32 ` Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 03/14] of: mdio: Refactor of_phy_find_device() Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 04/14] net: phy: Introduce fwnode_get_phy_id() Calvin Johnson
2020-12-15 17:28 ` Andy Shevchenko
2020-12-17 8:28 ` Calvin Johnson
2020-12-17 9:44 ` Andy Shevchenko
2020-12-15 16:43 ` [net-next PATCH v2 05/14] of: mdio: Refactor of_get_phy_id() Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 06/14] net: mdiobus: Introduce fwnode_mdiobus_register_phy() Calvin Johnson
2020-12-15 17:33 ` Andy Shevchenko
2020-12-18 5:34 ` Calvin Johnson
2020-12-18 15:35 ` Andy Shevchenko
2020-12-15 16:43 ` [net-next PATCH v2 07/14] of: mdio: Refactor of_mdiobus_register_phy() Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 08/14] net: mdiobus: Introduce fwnode_mdiobus_register() Calvin Johnson
2020-12-15 17:53 ` Andy Shevchenko
2020-12-18 5:40 ` Calvin Johnson
2020-12-18 15:36 ` Andy Shevchenko
2020-12-15 16:43 ` [net-next PATCH v2 09/14] net/fsl: Use fwnode_mdiobus_register() Calvin Johnson
2020-12-15 17:55 ` Andy Shevchenko
2020-12-18 5:48 ` Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 10/14] device property: Introduce fwnode_get_id() Calvin Johnson
2020-12-15 17:00 ` Laurent Pinchart
2020-12-15 17:49 ` Andy Shevchenko
2020-12-18 6:09 ` Calvin Johnson
2020-12-15 17:45 ` Andy Shevchenko
2020-12-18 6:12 ` Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 11/14] phylink: introduce phylink_fwnode_phy_connect() Calvin Johnson
2020-12-15 16:43 ` [net-next PATCH v2 12/14] net: phylink: Refactor phylink_of_phy_connect() Calvin Johnson
2020-12-15 16:43 ` Calvin Johnson [this message]
2020-12-15 16:43 ` [net-next PATCH v2 14/14] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver Calvin Johnson
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