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-rw-r--r--net/dsa/dsa.c80
-rw-r--r--net/dsa/dsa_priv.h1
-rw-r--r--net/dsa/slave.c35
3 files changed, 57 insertions, 59 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 1eba07feb..fa4daba8d 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -21,8 +21,10 @@
#include <linux/of_mdio.h>
#include <linux/of_platform.h>
#include <linux/of_net.h>
+#include <linux/of_gpio.h>
#include <linux/sysfs.h>
#include <linux/phy_fixed.h>
+#include <linux/gpio/consumer.h>
#include "dsa_priv.h"
char dsa_driver_version[] = "0.1";
@@ -437,7 +439,7 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
if (of_phy_is_fixed_link(port_dn)) {
phydev = of_phy_find_device(port_dn);
if (phydev) {
- int addr = phydev->addr;
+ int addr = phydev->mdio.addr;
phy_device_free(phydev);
of_node_put(port_dn);
@@ -454,8 +456,7 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
if (!ds->ports[port])
continue;
- unregister_netdev(ds->ports[port]);
- free_netdev(ds->ports[port]);
+ dsa_slave_destroy(ds->ports[port]);
}
mdiobus_unregister(ds->slave_mii_bus);
@@ -506,33 +507,6 @@ static int dsa_switch_resume(struct dsa_switch *ds)
}
#endif
-
-/* link polling *************************************************************/
-static void dsa_link_poll_work(struct work_struct *ugly)
-{
- struct dsa_switch_tree *dst;
- int i;
-
- dst = container_of(ugly, struct dsa_switch_tree, link_poll_work);
-
- for (i = 0; i < dst->pd->nr_chips; i++) {
- struct dsa_switch *ds = dst->ds[i];
-
- if (ds != NULL && ds->drv->poll_link != NULL)
- ds->drv->poll_link(ds);
- }
-
- mod_timer(&dst->link_poll_timer, round_jiffies(jiffies + HZ));
-}
-
-static void dsa_link_poll_timer(unsigned long _dst)
-{
- struct dsa_switch_tree *dst = (void *)_dst;
-
- schedule_work(&dst->link_poll_work);
-}
-
-
/* platform driver init and cleanup *****************************************/
static int dev_is_class(struct device *dev, void *class)
{
@@ -688,6 +662,9 @@ static int dsa_of_probe(struct device *dev)
const char *port_name;
int chip_index, port_index;
const unsigned int *sw_addr, *port_reg;
+ int gpio;
+ enum of_gpio_flags of_flags;
+ unsigned long flags;
u32 eeprom_len;
int ret;
@@ -766,6 +743,19 @@ static int dsa_of_probe(struct device *dev)
put_device(cd->host_dev);
cd->host_dev = &mdio_bus_switch->dev;
}
+ gpio = of_get_named_gpio_flags(child, "reset-gpios", 0,
+ &of_flags);
+ if (gpio_is_valid(gpio)) {
+ flags = (of_flags == OF_GPIO_ACTIVE_LOW ?
+ GPIOF_ACTIVE_LOW : 0);
+ ret = devm_gpio_request_one(dev, gpio, flags,
+ "switch_reset");
+ if (ret)
+ goto out_free_chip;
+
+ cd->reset = gpio_to_desc(gpio);
+ gpiod_direction_output(cd->reset, 0);
+ }
for_each_available_child_of_node(child, port) {
port_reg = of_get_property(port, "reg", NULL);
@@ -859,8 +849,6 @@ static int dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
}
dst->ds[i] = ds;
- if (ds->drv->poll_link != NULL)
- dst->link_poll_needed = 1;
++configured;
}
@@ -879,15 +867,6 @@ static int dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
wmb();
dev->dsa_ptr = (void *)dst;
- if (dst->link_poll_needed) {
- INIT_WORK(&dst->link_poll_work, dsa_link_poll_work);
- init_timer(&dst->link_poll_timer);
- dst->link_poll_timer.data = (unsigned long)dst;
- dst->link_poll_timer.function = dsa_link_poll_timer;
- dst->link_poll_timer.expires = round_jiffies(jiffies + HZ);
- add_timer(&dst->link_poll_timer);
- }
-
return 0;
}
@@ -939,8 +918,10 @@ static int dsa_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, dst);
ret = dsa_setup_dst(dst, dev, &pdev->dev, pd);
- if (ret)
+ if (ret) {
+ dev_put(dev);
goto out;
+ }
return 0;
@@ -954,17 +935,14 @@ static void dsa_remove_dst(struct dsa_switch_tree *dst)
{
int i;
- if (dst->link_poll_needed)
- del_timer_sync(&dst->link_poll_timer);
-
- flush_work(&dst->link_poll_work);
-
for (i = 0; i < dst->pd->nr_chips; i++) {
struct dsa_switch *ds = dst->ds[i];
if (ds)
dsa_switch_destroy(ds);
}
+
+ dev_put(dst->master_netdev);
}
static int dsa_remove(struct platform_device *pdev)
@@ -1010,6 +988,14 @@ static int dsa_suspend(struct device *d)
struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
int i, ret = 0;
+ dst->master_netdev->dsa_ptr = NULL;
+
+ /* If we used a tagging format that doesn't have an ethertype
+ * field, make sure that all packets from this point get sent
+ * without the tag and go through the regular receive path.
+ */
+ wmb();
+
for (i = 0; i < dst->pd->nr_chips; i++) {
struct dsa_switch *ds = dst->ds[i];
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 311796c80..1d1a54687 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -61,6 +61,7 @@ extern const struct dsa_device_ops notag_netdev_ops;
void dsa_slave_mii_bus_init(struct dsa_switch *ds);
int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
int port, char *name);
+void dsa_slave_destroy(struct net_device *slave_dev);
int dsa_slave_suspend(struct net_device *slave_dev);
int dsa_slave_resume(struct net_device *slave_dev);
int dsa_slave_netdevice_event(struct notifier_block *unused,
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 7bc787b09..ab24521be 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -15,6 +15,7 @@
#include <linux/phy_fixed.h>
#include <linux/of_net.h>
#include <linux/of_mdio.h>
+#include <linux/mdio.h>
#include <net/rtnetlink.h>
#include <net/switchdev.h>
#include <linux/if_bridge.h>
@@ -997,7 +998,7 @@ static int dsa_slave_phy_connect(struct dsa_slave_priv *p,
{
struct dsa_switch *ds = p->parent;
- p->phy = ds->slave_mii_bus->phy_map[addr];
+ p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr);
if (!p->phy) {
netdev_err(slave_dev, "no phy at %d\n", addr);
return -ENODEV;
@@ -1080,11 +1081,10 @@ static int dsa_slave_phy_setup(struct dsa_slave_priv *p,
netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret);
return ret;
}
- } else {
- netdev_info(slave_dev, "attached PHY at address %d [%s]\n",
- p->phy->addr, p->phy->drv->name);
}
+ phy_attached_info(p->phy);
+
return 0;
}
@@ -1189,19 +1189,11 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
p->old_link = -1;
p->old_duplex = -1;
- ret = dsa_slave_phy_setup(p, slave_dev);
- if (ret) {
- netdev_err(master, "error %d setting up slave phy\n", ret);
- free_netdev(slave_dev);
- return ret;
- }
-
ds->ports[port] = slave_dev;
ret = register_netdev(slave_dev);
if (ret) {
netdev_err(master, "error %d registering interface %s\n",
ret, slave_dev->name);
- phy_disconnect(p->phy);
ds->ports[port] = NULL;
free_netdev(slave_dev);
return ret;
@@ -1209,9 +1201,28 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
netif_carrier_off(slave_dev);
+ ret = dsa_slave_phy_setup(p, slave_dev);
+ if (ret) {
+ netdev_err(master, "error %d setting up slave phy\n", ret);
+ unregister_netdev(slave_dev);
+ free_netdev(slave_dev);
+ return ret;
+ }
+
return 0;
}
+void dsa_slave_destroy(struct net_device *slave_dev)
+{
+ struct dsa_slave_priv *p = netdev_priv(slave_dev);
+
+ netif_carrier_off(slave_dev);
+ if (p->phy)
+ phy_disconnect(p->phy);
+ unregister_netdev(slave_dev);
+ free_netdev(slave_dev);
+}
+
static bool dsa_slave_dev_check(struct net_device *dev)
{
return dev->netdev_ops == &dsa_slave_netdev_ops;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-18 23:23:56 +0000