clockevents/drivers/stm32: Migrate to new 'set-state' interface
Migrate stm32 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: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Acked-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
diff --git a/drivers/clocksource/timer-stm32.c b/drivers/clocksource/timer-stm32.c
index a97e8b5..f3dcb76 100644
--- a/drivers/clocksource/timer-stm32.c
+++ b/drivers/clocksource/timer-stm32.c
@@ -40,24 +40,25 @@
void __iomem *base;
};
-static void stm32_clock_event_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evtdev)
+static int stm32_clock_event_shutdown(struct clock_event_device *evtdev)
{
struct stm32_clock_event_ddata *data =
container_of(evtdev, struct stm32_clock_event_ddata, evtdev);
void *base = data->base;
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- writel_relaxed(data->periodic_top, base + TIM_ARR);
- writel_relaxed(TIM_CR1_ARPE | TIM_CR1_CEN, base + TIM_CR1);
- break;
+ writel_relaxed(0, base + TIM_CR1);
+ return 0;
+}
- case CLOCK_EVT_MODE_ONESHOT:
- default:
- writel_relaxed(0, base + TIM_CR1);
- break;
- }
+static int stm32_clock_event_set_periodic(struct clock_event_device *evtdev)
+{
+ struct stm32_clock_event_ddata *data =
+ container_of(evtdev, struct stm32_clock_event_ddata, evtdev);
+ void *base = data->base;
+
+ writel_relaxed(data->periodic_top, base + TIM_ARR);
+ writel_relaxed(TIM_CR1_ARPE | TIM_CR1_CEN, base + TIM_CR1);
+ return 0;
}
static int stm32_clock_event_set_next_event(unsigned long evt,
@@ -88,7 +89,10 @@
.evtdev = {
.name = "stm32 clockevent",
.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
- .set_mode = stm32_clock_event_set_mode,
+ .set_state_shutdown = stm32_clock_event_shutdown,
+ .set_state_periodic = stm32_clock_event_set_periodic,
+ .set_state_oneshot = stm32_clock_event_shutdown,
+ .tick_resume = stm32_clock_event_shutdown,
.set_next_event = stm32_clock_event_set_next_event,
.rating = 200,
},
