#include <linux/device.h>
#include <linux/errno.h>
-#include <linux/etherdevice.h>
#include <linux/ethtool.h>
-#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mii.h>
#include <linux/mm.h>
#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/of_device.h>
-#include <linux/of_mdio.h>
#include <linux/phy.h>
-#include <linux/reset.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/string.h>
}
EXPORT_SYMBOL(mdiobus_is_registered_device);
-/**
- * mdiobus_release - mii_bus device release callback
- * @d: the target struct device that contains the mii_bus
- *
- * Description: called when the last reference to an mii_bus is
- * dropped, to free the underlying memory.
- */
-static void mdiobus_release(struct device *d)
-{
- struct mii_bus *bus = to_mii_bus(d);
-
- WARN(bus->state != MDIOBUS_RELEASED &&
- /* for compatibility with error handling in drivers */
- bus->state != MDIOBUS_ALLOCATED,
- "%s: not in RELEASED or ALLOCATED state\n",
- bus->id);
-
- if (bus->state == MDIOBUS_RELEASED)
- fwnode_handle_put(dev_fwnode(d));
-
- kfree(bus);
-}
-
-struct mdio_bus_stat_attr {
- struct device_attribute attr;
- int address;
- unsigned int field_offset;
-};
-
-static struct mdio_bus_stat_attr *to_sattr(struct device_attribute *attr)
-{
- return container_of(attr, struct mdio_bus_stat_attr, attr);
-}
-
-static u64 mdio_bus_get_stat(struct mdio_bus_stats *s, unsigned int offset)
-{
- const u64_stats_t *stats = (const void *)s + offset;
- unsigned int start;
- u64 val = 0;
-
- do {
- start = u64_stats_fetch_begin(&s->syncp);
- val = u64_stats_read(stats);
- } while (u64_stats_fetch_retry(&s->syncp, start));
-
- return val;
-}
-
-static ssize_t mdio_bus_stat_field_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct mdio_bus_stat_attr *sattr = to_sattr(attr);
- struct mii_bus *bus = to_mii_bus(dev);
- u64 val = 0;
-
- if (sattr->address < 0) {
- /* get global stats */
- for (int i = 0; i < PHY_MAX_ADDR; i++)
- val += mdio_bus_get_stat(&bus->stats[i],
- sattr->field_offset);
- } else {
- val = mdio_bus_get_stat(&bus->stats[sattr->address],
- sattr->field_offset);
- }
-
- return sysfs_emit(buf, "%llu\n", val);
-}
-
-static ssize_t mdio_bus_device_stat_field_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct mdio_bus_stat_attr *sattr = to_sattr(attr);
- struct mdio_device *mdiodev = to_mdio_device(dev);
- struct mii_bus *bus = mdiodev->bus;
- int addr = mdiodev->addr;
- u64 val;
-
- val = mdio_bus_get_stat(&bus->stats[addr], sattr->field_offset);
-
- return sysfs_emit(buf, "%llu\n", val);
-}
-
-#define MDIO_BUS_STATS_ATTR(field) \
-static const struct mdio_bus_stat_attr dev_attr_mdio_bus_##field = { \
- .attr = __ATTR(field, 0444, mdio_bus_stat_field_show, NULL), \
- .address = -1, \
- .field_offset = offsetof(struct mdio_bus_stats, field), \
-}; \
-static const struct mdio_bus_stat_attr dev_attr_mdio_bus_device_##field = { \
- .attr = __ATTR(field, 0444, mdio_bus_device_stat_field_show, NULL), \
- .field_offset = offsetof(struct mdio_bus_stats, field), \
-}
-
-MDIO_BUS_STATS_ATTR(transfers);
-MDIO_BUS_STATS_ATTR(errors);
-MDIO_BUS_STATS_ATTR(writes);
-MDIO_BUS_STATS_ATTR(reads);
-
-#define MDIO_BUS_STATS_ADDR_ATTR_DECL(field, addr, file) \
-static const struct mdio_bus_stat_attr \
-dev_attr_mdio_bus_addr_##field##_##addr = { \
- .attr = { .attr = { .name = file, .mode = 0444 }, \
- .show = mdio_bus_stat_field_show, \
- }, \
- .address = addr, \
- .field_offset = offsetof(struct mdio_bus_stats, field), \
-}
-
-#define MDIO_BUS_STATS_ADDR_ATTR(field, addr) \
- MDIO_BUS_STATS_ADDR_ATTR_DECL(field, addr, \
- __stringify(field) "_" __stringify(addr))
-
-#define MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(addr) \
- MDIO_BUS_STATS_ADDR_ATTR(transfers, addr); \
- MDIO_BUS_STATS_ADDR_ATTR(errors, addr); \
- MDIO_BUS_STATS_ADDR_ATTR(writes, addr); \
- MDIO_BUS_STATS_ADDR_ATTR(reads, addr) \
-
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(0);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(1);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(2);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(3);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(4);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(5);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(6);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(7);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(8);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(9);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(10);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(11);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(12);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(13);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(14);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(15);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(16);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(17);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(18);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(19);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(20);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(21);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(22);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(23);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(24);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(25);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(26);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(27);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(28);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(29);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(30);
-MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(31);
-
-#define MDIO_BUS_STATS_ADDR_ATTR_GROUP(addr) \
- &dev_attr_mdio_bus_addr_transfers_##addr.attr.attr, \
- &dev_attr_mdio_bus_addr_errors_##addr.attr.attr, \
- &dev_attr_mdio_bus_addr_writes_##addr.attr.attr, \
- &dev_attr_mdio_bus_addr_reads_##addr.attr.attr \
-
-static const struct attribute *const mdio_bus_statistics_attrs[] = {
- &dev_attr_mdio_bus_transfers.attr.attr,
- &dev_attr_mdio_bus_errors.attr.attr,
- &dev_attr_mdio_bus_writes.attr.attr,
- &dev_attr_mdio_bus_reads.attr.attr,
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(0),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(1),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(2),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(3),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(4),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(5),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(6),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(7),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(8),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(9),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(10),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(11),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(12),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(13),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(14),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(15),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(16),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(17),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(18),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(19),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(20),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(21),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(22),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(23),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(24),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(25),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(26),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(27),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(28),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(29),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(30),
- MDIO_BUS_STATS_ADDR_ATTR_GROUP(31),
- NULL,
-};
-
-static const struct attribute_group mdio_bus_statistics_group = {
- .name = "statistics",
- .attrs_const = mdio_bus_statistics_attrs,
-};
-__ATTRIBUTE_GROUPS(mdio_bus_statistics);
-
-const struct class mdio_bus_class = {
- .name = "mdio_bus",
- .dev_release = mdiobus_release,
- .dev_groups = mdio_bus_statistics_groups,
-};
-EXPORT_SYMBOL_GPL(mdio_bus_class);
-
static void mdiobus_stats_acct(struct mdio_bus_stats *stats, bool op, int ret)
{
preempt_disable();
}
EXPORT_SYMBOL_GPL(mdiobus_c45_modify_changed);
-/**
- * mdio_bus_match - determine if given MDIO driver supports the given
- * MDIO device
- * @dev: target MDIO device
- * @drv: given MDIO driver
- *
- * Return: 1 if the driver supports the device, 0 otherwise
- *
- * Description: This may require calling the devices own match function,
- * since different classes of MDIO devices have different match criteria.
- */
-static int mdio_bus_match(struct device *dev, const struct device_driver *drv)
-{
- const struct mdio_driver *mdiodrv = to_mdio_driver(drv);
- struct mdio_device *mdio = to_mdio_device(dev);
-
- /* Both the driver and device must type-match */
- if (!(mdiodrv->mdiodrv.flags & MDIO_DEVICE_IS_PHY) !=
- !(mdio->flags & MDIO_DEVICE_FLAG_PHY))
- return 0;
-
- if (of_driver_match_device(dev, drv))
- return 1;
-
- if (mdio->bus_match)
- return mdio->bus_match(dev, drv);
-
- return 0;
-}
-
-static int mdio_uevent(const struct device *dev, struct kobj_uevent_env *env)
-{
- int rc;
-
- /* Some devices have extra OF data and an OF-style MODALIAS */
- rc = of_device_uevent_modalias(dev, env);
- if (rc != -ENODEV)
- return rc;
-
- return 0;
-}
-
-static const struct attribute *const mdio_bus_device_statistics_attrs[] = {
- &dev_attr_mdio_bus_device_transfers.attr.attr,
- &dev_attr_mdio_bus_device_errors.attr.attr,
- &dev_attr_mdio_bus_device_writes.attr.attr,
- &dev_attr_mdio_bus_device_reads.attr.attr,
- NULL,
-};
-
-static const struct attribute_group mdio_bus_device_statistics_group = {
- .name = "statistics",
- .attrs_const = mdio_bus_device_statistics_attrs,
-};
-__ATTRIBUTE_GROUPS(mdio_bus_device_statistics);
-
-const struct bus_type mdio_bus_type = {
- .name = "mdio_bus",
- .dev_groups = mdio_bus_device_statistics_groups,
- .match = mdio_bus_match,
- .uevent = mdio_uevent,
-};
-EXPORT_SYMBOL(mdio_bus_type);
-
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("MDIO bus/device layer");
#include <linux/string.h>
#include <linux/uaccess.h>
#include <linux/unistd.h>
+#include "phylib-internal.h"
+
+/**
+ * mdiobus_release - mii_bus device release callback
+ * @d: the target struct device that contains the mii_bus
+ *
+ * Description: called when the last reference to an mii_bus is
+ * dropped, to free the underlying memory.
+ */
+static void mdiobus_release(struct device *d)
+{
+ struct mii_bus *bus = to_mii_bus(d);
+
+ WARN(bus->state != MDIOBUS_RELEASED &&
+ /* for compatibility with error handling in drivers */
+ bus->state != MDIOBUS_ALLOCATED,
+ "%s: not in RELEASED or ALLOCATED state\n",
+ bus->id);
+
+ if (bus->state == MDIOBUS_RELEASED)
+ fwnode_handle_put(dev_fwnode(d));
+
+ kfree(bus);
+}
+
+struct mdio_bus_stat_attr {
+ struct device_attribute attr;
+ int address;
+ unsigned int field_offset;
+};
+
+static struct mdio_bus_stat_attr *to_sattr(struct device_attribute *attr)
+{
+ return container_of(attr, struct mdio_bus_stat_attr, attr);
+}
+
+static u64 mdio_bus_get_stat(struct mdio_bus_stats *s, unsigned int offset)
+{
+ const u64_stats_t *stats = (const void *)s + offset;
+ unsigned int start;
+ u64 val = 0;
+
+ do {
+ start = u64_stats_fetch_begin(&s->syncp);
+ val = u64_stats_read(stats);
+ } while (u64_stats_fetch_retry(&s->syncp, start));
+
+ return val;
+}
+
+static ssize_t mdio_bus_stat_field_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct mdio_bus_stat_attr *sattr = to_sattr(attr);
+ struct mii_bus *bus = to_mii_bus(dev);
+ u64 val = 0;
+
+ if (sattr->address < 0) {
+ /* get global stats */
+ for (int i = 0; i < PHY_MAX_ADDR; i++)
+ val += mdio_bus_get_stat(&bus->stats[i],
+ sattr->field_offset);
+ } else {
+ val = mdio_bus_get_stat(&bus->stats[sattr->address],
+ sattr->field_offset);
+ }
+
+ return sysfs_emit(buf, "%llu\n", val);
+}
+
+static ssize_t mdio_bus_device_stat_field_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct mdio_bus_stat_attr *sattr = to_sattr(attr);
+ struct mdio_device *mdiodev = to_mdio_device(dev);
+ struct mii_bus *bus = mdiodev->bus;
+ int addr = mdiodev->addr;
+ u64 val;
+
+ val = mdio_bus_get_stat(&bus->stats[addr], sattr->field_offset);
+
+ return sysfs_emit(buf, "%llu\n", val);
+}
+
+#define MDIO_BUS_STATS_ATTR(field) \
+static const struct mdio_bus_stat_attr dev_attr_mdio_bus_##field = { \
+ .attr = __ATTR(field, 0444, mdio_bus_stat_field_show, NULL), \
+ .address = -1, \
+ .field_offset = offsetof(struct mdio_bus_stats, field), \
+}; \
+static const struct mdio_bus_stat_attr dev_attr_mdio_bus_device_##field = { \
+ .attr = __ATTR(field, 0444, mdio_bus_device_stat_field_show, NULL), \
+ .field_offset = offsetof(struct mdio_bus_stats, field), \
+}
+
+MDIO_BUS_STATS_ATTR(transfers);
+MDIO_BUS_STATS_ATTR(errors);
+MDIO_BUS_STATS_ATTR(writes);
+MDIO_BUS_STATS_ATTR(reads);
+
+#define MDIO_BUS_STATS_ADDR_ATTR_DECL(field, addr, file) \
+static const struct mdio_bus_stat_attr \
+dev_attr_mdio_bus_addr_##field##_##addr = { \
+ .attr = { .attr = { .name = file, .mode = 0444 }, \
+ .show = mdio_bus_stat_field_show, \
+ }, \
+ .address = addr, \
+ .field_offset = offsetof(struct mdio_bus_stats, field), \
+}
+
+#define MDIO_BUS_STATS_ADDR_ATTR(field, addr) \
+ MDIO_BUS_STATS_ADDR_ATTR_DECL(field, addr, \
+ __stringify(field) "_" __stringify(addr))
+
+#define MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(addr) \
+ MDIO_BUS_STATS_ADDR_ATTR(transfers, addr); \
+ MDIO_BUS_STATS_ADDR_ATTR(errors, addr); \
+ MDIO_BUS_STATS_ADDR_ATTR(writes, addr); \
+ MDIO_BUS_STATS_ADDR_ATTR(reads, addr) \
+
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(0);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(1);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(2);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(3);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(4);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(5);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(6);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(7);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(8);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(9);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(10);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(11);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(12);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(13);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(14);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(15);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(16);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(17);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(18);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(19);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(20);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(21);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(22);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(23);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(24);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(25);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(26);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(27);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(28);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(29);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(30);
+MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(31);
+
+#define MDIO_BUS_STATS_ADDR_ATTR_GROUP(addr) \
+ &(dev_attr_mdio_bus_addr_transfers_##addr).attr.attr, \
+ &(dev_attr_mdio_bus_addr_errors_##addr).attr.attr, \
+ &(dev_attr_mdio_bus_addr_writes_##addr).attr.attr, \
+ &(dev_attr_mdio_bus_addr_reads_##addr).attr.attr \
+
+static const struct attribute *const mdio_bus_statistics_attrs[] = {
+ &dev_attr_mdio_bus_transfers.attr.attr,
+ &dev_attr_mdio_bus_errors.attr.attr,
+ &dev_attr_mdio_bus_writes.attr.attr,
+ &dev_attr_mdio_bus_reads.attr.attr,
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(0),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(1),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(2),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(3),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(4),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(5),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(6),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(7),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(8),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(9),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(10),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(11),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(12),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(13),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(14),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(15),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(16),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(17),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(18),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(19),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(20),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(21),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(22),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(23),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(24),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(25),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(26),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(27),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(28),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(29),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(30),
+ MDIO_BUS_STATS_ADDR_ATTR_GROUP(31),
+ NULL,
+};
+
+static const struct attribute_group mdio_bus_statistics_group = {
+ .name = "statistics",
+ .attrs_const = mdio_bus_statistics_attrs,
+};
+__ATTRIBUTE_GROUPS(mdio_bus_statistics);
+
+const struct class mdio_bus_class = {
+ .name = "mdio_bus",
+ .dev_release = mdiobus_release,
+ .dev_groups = mdio_bus_statistics_groups,
+};
+
+/**
+ * mdio_bus_match - determine if given MDIO driver supports the given
+ * MDIO device
+ * @dev: target MDIO device
+ * @drv: given MDIO driver
+ *
+ * Return: 1 if the driver supports the device, 0 otherwise
+ *
+ * Description: This may require calling the devices own match function,
+ * since different classes of MDIO devices have different match criteria.
+ */
+static int mdio_bus_match(struct device *dev, const struct device_driver *drv)
+{
+ const struct mdio_driver *mdiodrv = to_mdio_driver(drv);
+ struct mdio_device *mdio = to_mdio_device(dev);
+
+ /* Both the driver and device must type-match */
+ if (!(mdiodrv->mdiodrv.flags & MDIO_DEVICE_IS_PHY) !=
+ !(mdio->flags & MDIO_DEVICE_FLAG_PHY))
+ return 0;
+
+ if (of_driver_match_device(dev, drv))
+ return 1;
+
+ if (mdio->bus_match)
+ return mdio->bus_match(dev, drv);
+
+ return 0;
+}
+
+static int mdio_uevent(const struct device *dev, struct kobj_uevent_env *env)
+{
+ int rc;
+
+ /* Some devices have extra OF data and an OF-style MODALIAS */
+ rc = of_device_uevent_modalias(dev, env);
+ if (rc != -ENODEV)
+ return rc;
+
+ return 0;
+}
+
+static const struct attribute *const mdio_bus_device_statistics_attrs[] = {
+ &dev_attr_mdio_bus_device_transfers.attr.attr,
+ &dev_attr_mdio_bus_device_errors.attr.attr,
+ &dev_attr_mdio_bus_device_writes.attr.attr,
+ &dev_attr_mdio_bus_device_reads.attr.attr,
+ NULL,
+};
+
+static const struct attribute_group mdio_bus_device_statistics_group = {
+ .name = "statistics",
+ .attrs_const = mdio_bus_device_statistics_attrs,
+};
+__ATTRIBUTE_GROUPS(mdio_bus_device_statistics);
+
+const struct bus_type mdio_bus_type = {
+ .name = "mdio_bus",
+ .dev_groups = mdio_bus_device_statistics_groups,
+ .match = mdio_bus_match,
+ .uevent = mdio_uevent,
+};
/**
* mdiobus_alloc_size - allocate a mii_bus structure
projects / thirdparty / linux.git / commitdiff
