leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

clockevents/drivers/vf_pit: Migrate to new 'set-state' interface

Browse Source 
Migrate vf_pit driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.

This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.

Cc: Jingchang Lu <b35083@freescale.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Stefan Agner <stefan@agner.ch>
This commit is contained in:
Viresh Kumar 2015-06-18 16:24:53 +05:30 committed by Daniel Lezcano
parent 8ff8fc13bd
commit 9552a6af8c
1 changed files with 12 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/clocksource/vf_pit_timer.c
View File

@ -86,20 +86,16 @@ static int pit_set_next_event(unsigned long delta,
return 0; return 0;
} }
static void pit_set_mode(enum clock_event_mode mode, static int pit_shutdown(struct clock_event_device *evt)
struct clock_event_device *evt)
{ {
switch (mode) { pit_timer_disable();
case CLOCK_EVT_MODE_PERIODIC: return 0;
pit_set_next_event(cycle_per_jiffy, evt); }
break;
case CLOCK_EVT_MODE_SHUTDOWN: static int pit_set_periodic(struct clock_event_device *evt)
case CLOCK_EVT_MODE_UNUSED: {
pit_timer_disable(); pit_set_next_event(cycle_per_jiffy, evt);
break; return 0;
default:
break;
}
} }
static irqreturn_t pit_timer_interrupt(int irq, void *dev_id) static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
@ -114,7 +110,7 @@ static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
* and start the counter again. So software need to disable the timer * and start the counter again. So software need to disable the timer
* to stop the counter loop in ONESHOT mode. * to stop the counter loop in ONESHOT mode.
*/ */
if (likely(evt->mode == CLOCK_EVT_MODE_ONESHOT)) if (likely(clockevent_state_oneshot(evt)))
pit_timer_disable(); pit_timer_disable();
evt->event_handler(evt); evt->event_handler(evt);
@ -125,7 +121,8 @@ static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
static struct clock_event_device clockevent_pit = { static struct clock_event_device clockevent_pit = {
.name = "VF pit timer", .name = "VF pit timer",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.set_mode = pit_set_mode, .set_state_shutdown = pit_shutdown,
.set_state_periodic = pit_set_periodic,
.set_next_event = pit_set_next_event, .set_next_event = pit_set_next_event,
.rating = 300, .rating = 300,
}; };