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Commit 97b33bdf authored by Heiner Kallweit's avatar Heiner Kallweit Committed by David S. Miller
Browse files

net: phy: export phy_queue_state_machine 



We face the issue that link change interrupt and link status may be
reported by different PHY layers. As a result the link change
interrupt may occur before the link status changes.
Export phy_queue_state_machine to allow PHY drivers to specify a
delay between link status change interrupt and link status check.

v2:
- change jiffies parameter type to unsigned long

Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Suggested-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Acked-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 49644e68

drivers/net/phy/phy.c

+5 −3
Original line number Diff line number Diff line
@@ -29,6 +29,8 @@ 
#include <linux/uaccess.h>

#include <linux/atomic.h>



#define PHY_STATE_TIME	HZ



#define PHY_STATE_STR(_state)			\

	case PHY_##_state:			\

		return __stringify(_state);	\
@@ -478,12 +480,12 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd) 
}

EXPORT_SYMBOL(phy_mii_ioctl);



static void phy_queue_state_machine(struct phy_device *phydev,

				    unsigned int secs)

void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies)

{

	mod_delayed_work(system_power_efficient_wq, &phydev->state_queue,

			 secs * HZ);

			 jiffies);

}

EXPORT_SYMBOL(phy_queue_state_machine);



static void phy_trigger_machine(struct phy_device *phydev)

{

include/linux/phy.h

+1 −1
Original line number Diff line number Diff line
@@ -188,7 +188,6 @@ static inline const char *phy_modes(phy_interface_t interface) 




#define PHY_INIT_TIMEOUT	100000

#define PHY_STATE_TIME		1

#define PHY_FORCE_TIMEOUT	10



#define PHY_MAX_ADDR	32
@@ -1140,6 +1139,7 @@ int phy_driver_register(struct phy_driver *new_driver, struct module *owner); 
int phy_drivers_register(struct phy_driver *new_driver, int n,

			 struct module *owner);

void phy_state_machine(struct work_struct *work);

void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);

void phy_mac_interrupt(struct phy_device *phydev);

void phy_start_machine(struct phy_device *phydev);

void phy_stop_machine(struct phy_device *phydev);