[PATCH 3/6] clocksource: bcm2835: Migrate to new 'set-state' interface

Viresh Kumar
2015-06-08T13:41:59Z

Migrate bcm2835 driver to the new 'set-state' interface provided by
the 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: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
drivers/clocksource/bcm2835_timer.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index 26ed331b1aad..b59b8e1ba503 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -54,19 +54,9 @@ static u64 notrace bcm2835_sched_read(void)
return readl_relaxed(system_clock);
}

-static void bcm2835_time_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt_dev)
+static int bcm2835_time_noop(struct clock_event_device *evt)
{
- switch (mode) {
- case CLOCK_EVT_MODE_ONESHOT:
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_RESUME:
- break;
- default:
- WARN(1, "%s: unhandled event mode %d\n", __func__, mode);
- break;
- }
+ return 0;
}

static int bcm2835_time_set_next_event(unsigned long event,
@@ -129,7 +119,8 @@ static void __init bcm2835_timer_init(struct device_node *node)
timer->evt.name = node->name;
timer->evt.rating = 300;
timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;
- timer->evt.set_mode = bcm2835_time_set_mode;
+ timer->evt.set_state_shutdown = bcm2835_time_noop;
+ timer->evt.set_state_oneshot = bcm2835_time_noop;
timer->evt.set_next_event = bcm2835_time_set_next_event;
timer->evt.cpumask = cpumask_of(0);
timer->act.name = node->name;
--
2.4.0