phy subsystem: more cleanups
- unexport symbols never used outside of home module
- remove dead code
- remove CONFIG_PHYCONTROL, make it unconditionally enabled
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 934065d..d3e4363 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -40,21 +40,9 @@
#include <asm/uaccess.h>
static void phy_timer(unsigned long data);
-
-/* Convenience function to print out the current phy status
- */
-void phy_print_status(struct phy_device *phydev)
-{
- pr_info("%s: Link is %s", phydev->dev.bus_id,
- phydev->link ? "Up" : "Down");
- if (phydev->link)
- printk(" - %d/%s", phydev->speed,
- DUPLEX_FULL == phydev->duplex ?
- "Full" : "Half");
-
- printk("\n");
-}
-EXPORT_SYMBOL(phy_print_status);
+static int phy_disable_interrupts(struct phy_device *phydev);
+static void phy_sanitize_settings(struct phy_device *phydev);
+static int phy_stop_interrupts(struct phy_device *phydev);
/* Convenience functions for reading/writing a given PHY
@@ -133,7 +121,7 @@
* and to PHY_FORCING if auto-negotiation is disabled. Unless
* the PHY is currently HALTED.
*/
-int phy_start_aneg(struct phy_device *phydev)
+static int phy_start_aneg(struct phy_device *phydev)
{
int err;
@@ -161,8 +149,6 @@
spin_unlock(&phydev->lock);
return err;
}
-EXPORT_SYMBOL(phy_start_aneg);
-
/* A structure for mapping a particular speed and duplex
* combination to a particular SUPPORTED and ADVERTISED value */
@@ -255,7 +241,7 @@
* duplexes. Drop down by one in this order: 1000/FULL,
* 1000/HALF, 100/FULL, 100/HALF, 10/FULL, 10/HALF
*/
-void phy_sanitize_settings(struct phy_device *phydev)
+static void phy_sanitize_settings(struct phy_device *phydev)
{
u32 features = phydev->supported;
int idx;
@@ -270,7 +256,6 @@
phydev->speed = settings[idx].speed;
phydev->duplex = settings[idx].duplex;
}
-EXPORT_SYMBOL(phy_sanitize_settings);
/* phy_force_reduction
*
@@ -477,48 +462,22 @@
spin_unlock(&phydev->lock);
}
-#ifdef CONFIG_PHYCONTROL
-
-static void phy_change(void *data);
-
-/* phy_interrupt
- *
- * description: When a PHY interrupt occurs, the handler disables
- * interrupts, and schedules a work task to clear the interrupt.
- */
-static irqreturn_t phy_interrupt(int irq, void *phy_dat, struct pt_regs *regs)
-{
- struct phy_device *phydev = phy_dat;
-
- /* The MDIO bus is not allowed to be written in interrupt
- * context, so we need to disable the irq here. A work
- * queue will write the PHY to disable and clear the
- * interrupt, and then reenable the irq line. */
- disable_irq_nosync(irq);
-
- schedule_work(&phydev->phy_queue);
-
- return IRQ_HANDLED;
-}
-
-/* Enable the interrupts from the PHY side */
-int phy_enable_interrupts(struct phy_device *phydev)
+static int phy_stop_interrupts(struct phy_device *phydev)
{
int err;
- err = phy_clear_interrupt(phydev);
+ err = phy_disable_interrupts(phydev);
- if (err < 0)
- return err;
+ if (err)
+ phy_error(phydev);
- err = phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED);
+ free_irq(phydev->irq, phydev);
return err;
}
-EXPORT_SYMBOL(phy_enable_interrupts);
/* Disable the PHY interrupts from the PHY side */
-int phy_disable_interrupts(struct phy_device *phydev)
+static int phy_disable_interrupts(struct phy_device *phydev)
{
int err;
@@ -541,140 +500,6 @@
return err;
}
-EXPORT_SYMBOL(phy_disable_interrupts);
-
-/* phy_start_interrupts
- *
- * description: Request the interrupt for the given PHY. If
- * this fails, then we set irq to PHY_POLL.
- * Otherwise, we enable the interrupts in the PHY.
- * Returns 0 on success.
- * This should only be called with a valid IRQ number.
- */
-int phy_start_interrupts(struct phy_device *phydev)
-{
- int err = 0;
-
- INIT_WORK(&phydev->phy_queue, phy_change, phydev);
-
- if (request_irq(phydev->irq, phy_interrupt,
- SA_SHIRQ,
- "phy_interrupt",
- phydev) < 0) {
- printk(KERN_WARNING "%s: Can't get IRQ %d (PHY)\n",
- phydev->bus->name,
- phydev->irq);
- phydev->irq = PHY_POLL;
- return 0;
- }
-
- err = phy_enable_interrupts(phydev);
-
- return err;
-}
-EXPORT_SYMBOL(phy_start_interrupts);
-
-int phy_stop_interrupts(struct phy_device *phydev)
-{
- int err;
-
- err = phy_disable_interrupts(phydev);
-
- if (err)
- phy_error(phydev);
-
- free_irq(phydev->irq, phydev);
-
- return err;
-}
-EXPORT_SYMBOL(phy_stop_interrupts);
-
-
-/* Scheduled by the phy_interrupt/timer to handle PHY changes */
-static void phy_change(void *data)
-{
- int err;
- struct phy_device *phydev = data;
-
- err = phy_disable_interrupts(phydev);
-
- if (err)
- goto phy_err;
-
- spin_lock(&phydev->lock);
- if ((PHY_RUNNING == phydev->state) || (PHY_NOLINK == phydev->state))
- phydev->state = PHY_CHANGELINK;
- spin_unlock(&phydev->lock);
-
- enable_irq(phydev->irq);
-
- /* Reenable interrupts */
- err = phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED);
-
- if (err)
- goto irq_enable_err;
-
- return;
-
-irq_enable_err:
- disable_irq(phydev->irq);
-phy_err:
- phy_error(phydev);
-}
-
-/* Bring down the PHY link, and stop checking the status. */
-void phy_stop(struct phy_device *phydev)
-{
- spin_lock(&phydev->lock);
-
- if (PHY_HALTED == phydev->state)
- goto out_unlock;
-
- if (phydev->irq != PHY_POLL) {
- /* Clear any pending interrupts */
- phy_clear_interrupt(phydev);
-
- /* Disable PHY Interrupts */
- phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED);
- }
-
- phydev->state = PHY_HALTED;
-
-out_unlock:
- spin_unlock(&phydev->lock);
-}
-
-
-/* phy_start
- *
- * description: Indicates the attached device's readiness to
- * handle PHY-related work. Used during startup to start the
- * PHY, and after a call to phy_stop() to resume operation.
- * Also used to indicate the MDIO bus has cleared an error
- * condition.
- */
-void phy_start(struct phy_device *phydev)
-{
- spin_lock(&phydev->lock);
-
- switch (phydev->state) {
- case PHY_STARTING:
- phydev->state = PHY_PENDING;
- break;
- case PHY_READY:
- phydev->state = PHY_UP;
- break;
- case PHY_HALTED:
- phydev->state = PHY_RESUMING;
- default:
- break;
- }
- spin_unlock(&phydev->lock);
-}
-EXPORT_SYMBOL(phy_stop);
-EXPORT_SYMBOL(phy_start);
-
-#endif /* CONFIG_PHYCONTROL */
/* PHY timer which handles the state machine */
static void phy_timer(unsigned long data)