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mdio: Add support for mdio drivers.

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Not all devices on an MDIO bus are PHYs. Meaning not all MDIO drivers
are PHY drivers. Add support for generic MDIO drivers.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn
2016-01-06 20:11:26 +01:00
committed by David S. Miller
parent f89df3f381
commit a9049e0c51
7 changed files with 286 additions and 17 deletions
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9
include/linux/phy.h
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@@ -60,6 +60,7 @@
#define PHY_HAS_INTERRUPT 0x00000001
#define PHY_HAS_MAGICANEG 0x00000002
#define PHY_IS_INTERNAL 0x00000004
#define MDIO_DEVICE_IS_PHY 0x80000000
/* Interface Mode definitions */
typedef enum {
@@ -432,6 +433,7 @@ struct phy_device {
/* struct phy_driver: Driver structure for a particular PHY type
*
* driver_data: static driver data
* phy_id: The result of reading the UID registers of this PHY
* type, and ANDing them with the phy_id_mask. This driver
* only works for PHYs with IDs which match this field
@@ -441,7 +443,6 @@ struct phy_device {
* by this PHY
* flags: A bitfield defining certain other features this PHY
* supports (like interrupts)
* driver_data: static driver data
*
* The drivers must implement config_aneg and read_status. All
* other functions are optional. Note that none of these
@@ -452,6 +453,7 @@ struct phy_device {
* supported in the driver).
*/
struct phy_driver {
struct mdio_driver_common mdiodrv;
u32 phy_id;
char *name;
unsigned int phy_id_mask;
@@ -587,10 +589,9 @@ struct phy_driver {
void (*get_strings)(struct phy_device *dev, u8 *data);
void (*get_stats)(struct phy_device *dev,
struct ethtool_stats *stats, u64 *data);
struct device_driver driver;
};
#define to_phy_driver(d) container_of(d, struct phy_driver, driver)
#define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
struct phy_driver, mdiodrv)
#define PHY_ANY_ID "MATCH ANY PHY"
#define PHY_ANY_UID 0xffffffff