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authorJeff Garzik <jeff@garzik.org>2007-07-15 01:12:04 +0200
committerAnton Vorontsov <cbou@mail.ru>2007-07-15 20:32:03 +0200
commit5ebf6e6a96e41220edec23a90e4140985d1a5732 (patch)
tree3ad37208eb90bb8ce530ee0befe99c192868ba1e
parentMAINTAINERS: Add maintainers for power supply subsystem and drivers (diff)
downloadlinux-5ebf6e6a96e41220edec23a90e4140985d1a5732.tar.xz
linux-5ebf6e6a96e41220edec23a90e4140985d1a5732.zip
pda_power: clean up irq, timer
Clean up pda_power interrupt handling: Prior to this patch, the driver would pass information it needed to the interrupt handler dev_id pointer, and then prompt forget it ever did so, recreating that same information after a couple passes through the timer-based state machine. This patch removes the redundant checks by passing the pda_power_supply[] pointer through the state machine. The current code passed 'irq' through the state machine, as an index to recreate the pointer, when we could more simply pass around the pointer itself. This patch makes it easier to remove the 'irq' argument in the future, in addition to cleaning up the driver today. Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/power/pda_power.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index 4e1eb040e148..cdc28923e0ce 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -101,32 +101,31 @@ static void update_charger(void)
return;
}
-static void supply_timer_func(unsigned long irq)
+static void supply_timer_func(unsigned long power_supply_ptr)
{
- if (ac_irq && irq == ac_irq->start)
- power_supply_changed(&pda_power_supplies[0]);
- else if (usb_irq && irq == usb_irq->start)
- power_supply_changed(&pda_power_supplies[1]);
+ void *power_supply = (void *)power_supply_ptr;
+
+ power_supply_changed(power_supply);
return;
}
-static void charger_timer_func(unsigned long irq)
+static void charger_timer_func(unsigned long power_supply_ptr)
{
update_charger();
/* Okay, charger set. Now wait a bit before notifying supplicants,
* charge power should stabilize. */
- supply_timer.data = irq;
+ supply_timer.data = power_supply_ptr;
mod_timer(&supply_timer,
jiffies + msecs_to_jiffies(pdata->wait_for_charger));
return;
}
-static irqreturn_t power_changed_isr(int irq, void *unused)
+static irqreturn_t power_changed_isr(int irq, void *power_supply)
{
/* Wait a bit before reading ac/usb line status and setting charger,
* because ac/usb status readings may lag from irq. */
- charger_timer.data = irq;
+ charger_timer.data = (unsigned long)power_supply;
mod_timer(&charger_timer,
jiffies + msecs_to_jiffies(pdata->wait_for_status));
return IRQ_HANDLED;