From f8f76db1db369f3a130ac3fd33e2eee5f1610d9c Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jpirko@redhat.com>
Date: Thu, 4 Feb 2010 10:23:02 -0800
Subject: [PATCH] libphy: add phy_find_first function
Many drivers do this in them manually. Now they can use this function.
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/phy_device.c | 16 ++++++++++++++++
include/linux/phy.h | 1 +
2 files changed, 17 insertions(+)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index adbc0fded1305..db1794546c565 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -276,6 +276,22 @@ int phy_device_register(struct phy_device *phydev)
}
EXPORT_SYMBOL(phy_device_register);
+/**
+ * phy_find_first - finds the first PHY device on the bus
+ * @bus: the target MII bus
+ */
+struct phy_device *phy_find_first(struct mii_bus *bus)
+{
+ int addr;
+
+ for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
+ if (bus->phy_map[addr])
+ return bus->phy_map[addr];
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(phy_find_first);
+
/**
* phy_prepare_link - prepares the PHY layer to monitor link status
* @phydev: target phy_device struct
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 6a7eb402165d0..14d7fdf6a90ae 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -452,6 +452,7 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
u32 flags, phy_interface_t interface);
struct phy_device * phy_attach(struct net_device *dev,
const char *bus_id, u32 flags, phy_interface_t interface);
+struct phy_device *phy_find_first(struct mii_bus *bus);
int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
void (*handler)(struct net_device *), u32 flags,
phy_interface_t interface);
--
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