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Subject[net-next PATCH v1 5/7] phylink: introduce phylink_fwnode_phy_connect()
Date
Define phylink_fwnode_phy_connect() to connect phy specified by
a fwnode to a phylink instance.

Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com>
---

drivers/net/phy/phylink.c | 51 +++++++++++++++++++++++++++++++++++++++
include/linux/phylink.h | 3 +++
2 files changed, 54 insertions(+)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index fe2296fdda19..ca88bd90d605 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -5,6 +5,7 @@
*
* Copyright (C) 2015 Russell King
*/
+#include <linux/acpi.h>
#include <linux/ethtool.h>
#include <linux/export.h>
#include <linux/gpio/consumer.h>
@@ -1120,6 +1121,56 @@ int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn,
}
EXPORT_SYMBOL_GPL(phylink_of_phy_connect);

+/**
+ * phylink_fwnode_phy_connect() - connect the PHY specified in the fwnode.
+ * @pl: a pointer to a &struct phylink returned from phylink_create()
+ * @fwnode: a pointer to a &struct fwnode_handle.
+ * @flags: PHY-specific flags to communicate to the PHY device driver
+ *
+ * Connect the phy specified @fwnode to the phylink instance specified
+ * by @pl.
+ *
+ * Returns 0 on success or a negative errno.
+ */
+int phylink_fwnode_phy_connect(struct phylink *pl,
+ struct fwnode_handle *fwnode,
+ u32 flags)
+{
+ struct fwnode_handle *phy_fwnode;
+ struct phy_device *phy_dev;
+ int ret;
+
+ if (is_of_node(fwnode))
+ return phylink_of_phy_connect(pl, to_of_node(fwnode), flags);
+ if (is_acpi_device_node(fwnode)) {
+ phy_fwnode = fwnode_get_phy_node(fwnode);
+ if (IS_ERR(phy_fwnode)) {
+ if (pl->cfg_link_an_mode == MLO_AN_PHY)
+ return -ENODEV;
+ return 0;
+ }
+
+ phy_dev = fwnode_phy_find_device(phy_fwnode);
+ fwnode_handle_put(phy_fwnode);
+ if (!phy_dev)
+ return -ENODEV;
+
+ ret = phy_attach_direct(pl->netdev, phy_dev, flags,
+ pl->link_interface);
+ if (ret)
+ return ret;
+
+ ret = phylink_bringup_phy(pl, phy_dev, pl->link_config.interface);
+ if (ret)
+ phy_detach(phy_dev);
+
+ return ret;
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(phylink_fwnode_phy_connect);
+
/**
* phylink_disconnect_phy() - disconnect any PHY attached to the phylink
* instance.
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index d81a714cfbbd..75d4f99090fd 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -439,6 +439,9 @@ void phylink_destroy(struct phylink *);

int phylink_connect_phy(struct phylink *, struct phy_device *);
int phylink_of_phy_connect(struct phylink *, struct device_node *, u32 flags);
+int phylink_fwnode_phy_connect(struct phylink *pl,
+ struct fwnode_handle *fwnode,
+ u32 flags);
void phylink_disconnect_phy(struct phylink *);

void phylink_mac_change(struct phylink *, bool up);
--
2.17.1
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