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Date: Fri, 3 Jun 2016 18:44:08 +0200
From: Andrew Lunn <andrew@...n.ch>
To: David Miller <davem@...emloft.net>,
Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
Florian Fainelli <f.fainelli@...il.com>
Cc: netdev <netdev@...r.kernel.org>, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next 09/17] net: dsa: Split up creating/destroying of DSA and CPU ports
Refactor the code to setup a single DSA/CPU port into a function of
its own, and export it, so it can be used by the new binding.
Similarly, refactor the destroy code into a function. When destroying
the ports, don't put the of node. They should be released at the end
along with the normal ports.
Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
rfc->v1:
* Extend commit message with comment about wrong of_node_put()
* Fix destroy of cpu and dsa ports.
---
net/dsa/dsa.c | 86 ++++++++++++++++++++++++++++++++----------------------
net/dsa/dsa_priv.h | 3 ++
2 files changed, 54 insertions(+), 35 deletions(-)
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index bfe1d03d4730..7140de475c07 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -180,36 +180,47 @@ __ATTRIBUTE_GROUPS(dsa_hwmon);
#endif /* CONFIG_NET_DSA_HWMON */
/* basic switch operations **************************************************/
-static int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct net_device *master)
+int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev,
+ struct device_node *port_dn, int port)
{
- struct device_node *port_dn;
struct phy_device *phydev;
- int ret, port, mode;
+ int ret, mode;
+
+ if (of_phy_is_fixed_link(port_dn)) {
+ ret = of_phy_register_fixed_link(port_dn);
+ if (ret) {
+ dev_err(dev, "failed to register fixed PHY\n");
+ return ret;
+ }
+ phydev = of_phy_find_device(port_dn);
+
+ mode = of_get_phy_mode(port_dn);
+ if (mode < 0)
+ mode = PHY_INTERFACE_MODE_NA;
+ phydev->interface = mode;
+
+ genphy_config_init(phydev);
+ genphy_read_status(phydev);
+ if (ds->drv->adjust_link)
+ ds->drv->adjust_link(ds, port, phydev);
+ }
+
+ return 0;
+}
+
+static int dsa_cpu_dsa_setups(struct dsa_switch *ds, struct device *dev)
+{
+ struct device_node *port_dn;
+ int ret, port;
for (port = 0; port < DSA_MAX_PORTS; port++) {
if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)))
continue;
port_dn = ds->ports[port].dn;
- if (of_phy_is_fixed_link(port_dn)) {
- ret = of_phy_register_fixed_link(port_dn);
- if (ret) {
- netdev_err(master,
- "failed to register fixed PHY\n");
- return ret;
- }
- phydev = of_phy_find_device(port_dn);
-
- mode = of_get_phy_mode(port_dn);
- if (mode < 0)
- mode = PHY_INTERFACE_MODE_NA;
- phydev->interface = mode;
-
- genphy_config_init(phydev);
- genphy_read_status(phydev);
- if (ds->drv->adjust_link)
- ds->drv->adjust_link(ds, port, phydev);
- }
+ ret = dsa_cpu_dsa_setup(ds, dev, port_dn, port);
+ if (ret)
+ return ret;
}
return 0;
}
@@ -340,7 +351,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
}
/* Perform configuration of the CPU and DSA ports */
- ret = dsa_cpu_dsa_setup(ds, dst->master_netdev);
+ ret = dsa_cpu_dsa_setups(ds, parent);
if (ret < 0) {
netdev_err(dst->master_netdev, "[%d] : can't configure CPU and DSA ports\n",
index);
@@ -423,10 +434,21 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
return ds;
}
-static void dsa_switch_destroy(struct dsa_switch *ds)
+void dsa_cpu_dsa_destroy(struct device_node *port_dn)
{
- struct device_node *port_dn;
struct phy_device *phydev;
+
+ if (of_phy_is_fixed_link(port_dn)) {
+ phydev = of_phy_find_device(port_dn);
+ if (phydev) {
+ phy_device_free(phydev);
+ fixed_phy_unregister(phydev);
+ }
+ }
+}
+
+static void dsa_switch_destroy(struct dsa_switch *ds)
+{
int port;
#ifdef CONFIG_NET_DSA_HWMON
@@ -445,17 +467,11 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
dsa_slave_destroy(ds->ports[port].netdev);
}
- /* Remove any fixed link PHYs */
+ /* Disable configuration of the CPU and DSA ports */
for (port = 0; port < DSA_MAX_PORTS; port++) {
- port_dn = ds->ports[port].dn;
- if (of_phy_is_fixed_link(port_dn)) {
- phydev = of_phy_find_device(port_dn);
- if (phydev) {
- phy_device_free(phydev);
- of_node_put(port_dn);
- fixed_phy_unregister(phydev);
- }
- }
+ if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)))
+ continue;
+ dsa_cpu_dsa_destroy(ds->ports[port].dn);
}
mdiobus_unregister(ds->slave_mii_bus);
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index dfa33779d49c..dbea5d9e7f75 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -50,6 +50,9 @@ struct dsa_slave_priv {
/* dsa.c */
extern char dsa_driver_version[];
+int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev,
+ struct device_node *port_dn, int port);
+void dsa_cpu_dsa_destroy(struct device_node *port_dn);
/* slave.c */
extern const struct dsa_device_ops notag_netdev_ops;
--
2.8.1
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