diff mbox

[36/41] clocksource: stm32: Migrate to new 'set-state' interface

Message ID 7fc5a0bfae6062b7fbea71a9a469e6574a1c3cf6.1434622147.git.viresh.kumar@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Viresh Kumar June 18, 2015, 10:54 a.m. UTC 
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>
---
 drivers/clocksource/timer-stm32.c | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

Comments

Maxime Coquelin June 18, 2015, 11:09 a.m. UTC | #1 
Hi Viresh,

On 06/18/2015 12:54 PM, Viresh Kumar wrote:
> 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>
> ---
>   drivers/clocksource/timer-stm32.c | 30 +++++++++++++++++-------------
>   1 file changed, 17 insertions(+), 13 deletions(-)
>
>

Thanks for having implemented the move to the new interface.
I just tested it, and confirm it works fine on my STM32 board.
You can add:

Tested-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Acked-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>

Regards,
Maxime
Viresh Kumar June 18, 2015, 11:32 a.m. UTC | #2 
On 18-06-15, 13:09, Maxime Coquelin wrote:
> Thanks for having implemented the move to the new interface.
> I just tested it, and confirm it works fine on my STM32 board.
> You can add:
> 
> Tested-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
> Acked-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>

Oh, that was so quick. Thanks a lot.
diff mbox

Patch

diff --git a/drivers/clocksource/timer-stm32.c b/drivers/clocksource/timer-stm32.c
index a97e8b50701c..f3dcb76799b4 100644
--- a/drivers/clocksource/timer-stm32.c
+++ b/drivers/clocksource/timer-stm32.c
@@ -40,24 +40,25 @@  struct stm32_clock_event_ddata {
 	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 @@  static struct stm32_clock_event_ddata clock_event_ddata = {
 	.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,
 	},