netdev - [PATCH net 1/2] of: mdio: export of_mdiobus_child_is

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Message-Id: <20191217170742.1166139-2-antoine.tenart@bootlin.com>
Date:   Tue, 17 Dec 2019 18:07:41 +0100
From:   Antoine Tenart <antoine.tenart@...tlin.com>
To:     davem@...emloft.net
Cc:     Antoine Tenart <antoine.tenart@...tlin.com>, andrew@...n.ch,
        f.fainelli@...il.com, hkallweit1@...il.com,
        alexandre.belloni@...tlin.com, nicolas.ferre@...rochip.com,
        netdev@...r.kernel.org, thomas.petazzoni@...tlin.com
Subject: [PATCH net 1/2] of: mdio: export of_mdiobus_child_is_phy

This patch exports of_mdiobus_child_is_phy, allowing to check if a child
node is a network PHY.

Signed-off-by: Antoine Tenart <antoine.tenart@...tlin.com>
---
 drivers/of/of_mdio.c    | 3 ++-
 include/linux/of_mdio.h | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index c6b87ce2b0cc..fc757ef6eadc 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -162,7 +162,7 @@ static const struct of_device_id whitelist_phys[] = {
  * A device which is not a phy is expected to have a compatible string
  * indicating what sort of device it is.
  */
-static bool of_mdiobus_child_is_phy(struct device_node *child)
+bool of_mdiobus_child_is_phy(struct device_node *child)
 {
 	u32 phy_id;
 
@@ -187,6 +187,7 @@ static bool of_mdiobus_child_is_phy(struct device_node *child)
 
 	return false;
 }
+EXPORT_SYMBOL(of_mdiobus_child_is_phy);
 
 /**
  * of_mdiobus_register - Register mii_bus and create PHYs from the device tree
diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h
index 99cefe6f5edb..79bc82e30c02 100644
--- a/include/linux/of_mdio.h
+++ b/include/linux/of_mdio.h
@@ -12,6 +12,7 @@
 #include <linux/of.h>
 
 #if IS_ENABLED(CONFIG_OF_MDIO)
+extern bool of_mdiobus_child_is_phy(struct device_node *child);
 extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
 extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
 extern struct phy_device *of_phy_connect(struct net_device *dev,
@@ -54,6 +55,11 @@ static inline int of_mdio_parse_addr(struct device *dev,
 }
 
 #else /* CONFIG_OF_MDIO */
+static bool of_mdiobus_child_is_phy(struct device_node *child)
+{
+	return false;
+}
+
 static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 {
 	/*
-- 
2.23.0