Commit-ID: 20bf54f1172931df634d8f8cf05ba2c2d371dc10
Gitweb: http://git.kernel.org/tip/20bf54f1172931df634d8f8cf05ba2c2d371dc10
Author: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
AuthorDate: Thu, 18 Jun 2015 16:24:41 +0530
Committer: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitDate: Mon, 10 Aug 2015 11:40:42 +0200
clockevents/drivers/efm32: Migrate to new 'set-state' interface
Migrate efm32 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.
There is nothing to be done for resume state and so isn't implemented.
Cc: Uwe Kleine-König <kernel@xxxxxxxxxxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
---
drivers/clocksource/time-efm32.c | 66 +++++++++++++++++++++-------------------
1 file changed, 35 insertions(+), 31 deletions(-)
diff --git a/drivers/clocksource/time-efm32.c b/drivers/clocksource/time-efm32.c
index 5b6e3d5..b06e4c2 100644
--- a/drivers/clocksource/time-efm32.c
+++ b/drivers/clocksource/time-efm32.c
@@ -48,40 +48,42 @@ struct efm32_clock_event_ddata {
unsigned periodic_top;
};
-static void efm32_clock_event_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evtdev)
+static int efm32_clock_event_shutdown(struct clock_event_device *evtdev)
{
struct efm32_clock_event_ddata *ddata =
container_of(evtdev, struct efm32_clock_event_ddata, evtdev);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
- writel_relaxed(ddata->periodic_top, ddata->base + TIMERn_TOP);
- writel_relaxed(TIMERn_CTRL_PRESC_1024 |
- TIMERn_CTRL_CLKSEL_PRESCHFPERCLK |
- TIMERn_CTRL_MODE_DOWN,
- ddata->base + TIMERn_CTRL);
- writel_relaxed(TIMERn_CMD_START, ddata->base + TIMERn_CMD);
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
- writel_relaxed(TIMERn_CTRL_PRESC_1024 |
- TIMERn_CTRL_CLKSEL_PRESCHFPERCLK |
- TIMERn_CTRL_OSMEN |
- TIMERn_CTRL_MODE_DOWN,
- ddata->base + TIMERn_CTRL);
- break;
-
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_SHUTDOWN:
- writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
- break;
-
- case CLOCK_EVT_MODE_RESUME:
- break;
- }
+ writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
+ return 0;
+}
+
+static int efm32_clock_event_set_oneshot(struct clock_event_device *evtdev)
+{
+ struct efm32_clock_event_ddata *ddata =
+ container_of(evtdev, struct efm32_clock_event_ddata, evtdev);
+
+ writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
+ writel_relaxed(TIMERn_CTRL_PRESC_1024 |
+ TIMERn_CTRL_CLKSEL_PRESCHFPERCLK |
+ TIMERn_CTRL_OSMEN |
+ TIMERn_CTRL_MODE_DOWN,
+ ddata->base + TIMERn_CTRL);
+ return 0;
+}
+
+static int efm32_clock_event_set_periodic(struct clock_event_device *evtdev)
+{
+ struct efm32_clock_event_ddata *ddata =
+ container_of(evtdev, struct efm32_clock_event_ddata, evtdev);
+
+ writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
+ writel_relaxed(ddata->periodic_top, ddata->base + TIMERn_TOP);
+ writel_relaxed(TIMERn_CTRL_PRESC_1024 |
+ TIMERn_CTRL_CLKSEL_PRESCHFPERCLK |
+ TIMERn_CTRL_MODE_DOWN,
+ ddata->base + TIMERn_CTRL);
+ writel_relaxed(TIMERn_CMD_START, ddata->base + TIMERn_CMD);
+ return 0;
}
static int efm32_clock_event_set_next_event(unsigned long evt,
@@ -112,7 +114,9 @@ static struct efm32_clock_event_ddata clock_event_ddata = {
.evtdev = {
.name = "efm32 clockevent",
.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
- .set_mode = efm32_clock_event_set_mode,
+ .set_state_shutdown = efm32_clock_event_shutdown,
+ .set_state_periodic = efm32_clock_event_set_periodic,
+ .set_state_oneshot = efm32_clock_event_set_oneshot,
.set_next_event = efm32_clock_event_set_next_event,
.rating = 200,
},
--
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