x86/uv/time: Migrate to new set-state interface
Migrate uv 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.
We weren't doing anything while switching modes other than in shutdown
mode and so those are not implemented.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linaro-kernel@lists.linaro.org
Cc: Christoph Lameter <cl@linux.com>
Cc: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/52e04139746222a2e82a96d13953cbc306cfb59b.1437042675.git.viresh.kumar@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/platform/uv/uv_time.c b/arch/x86/platform/uv/uv_time.c
index a244237..2b158a9 100644
--- a/arch/x86/platform/uv/uv_time.c
+++ b/arch/x86/platform/uv/uv_time.c
@@ -32,8 +32,7 @@
static cycle_t uv_read_rtc(struct clocksource *cs);
static int uv_rtc_next_event(unsigned long, struct clock_event_device *);
-static void uv_rtc_timer_setup(enum clock_event_mode,
- struct clock_event_device *);
+static int uv_rtc_shutdown(struct clock_event_device *evt);
static struct clocksource clocksource_uv = {
.name = RTC_NAME,
@@ -44,14 +43,14 @@
};
static struct clock_event_device clock_event_device_uv = {
- .name = RTC_NAME,
- .features = CLOCK_EVT_FEAT_ONESHOT,
- .shift = 20,
- .rating = 400,
- .irq = -1,
- .set_next_event = uv_rtc_next_event,
- .set_mode = uv_rtc_timer_setup,
- .event_handler = NULL,
+ .name = RTC_NAME,
+ .features = CLOCK_EVT_FEAT_ONESHOT,
+ .shift = 20,
+ .rating = 400,
+ .irq = -1,
+ .set_next_event = uv_rtc_next_event,
+ .set_state_shutdown = uv_rtc_shutdown,
+ .event_handler = NULL,
};
static DEFINE_PER_CPU(struct clock_event_device, cpu_ced);
@@ -321,24 +320,14 @@
}
/*
- * Setup the RTC timer in oneshot mode
+ * Shutdown the RTC timer
*/
-static void uv_rtc_timer_setup(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int uv_rtc_shutdown(struct clock_event_device *evt)
{
int ced_cpu = cpumask_first(evt->cpumask);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- case CLOCK_EVT_MODE_ONESHOT:
- case CLOCK_EVT_MODE_RESUME:
- /* Nothing to do here yet */
- break;
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_SHUTDOWN:
- uv_rtc_unset_timer(ced_cpu, 1);
- break;
- }
+ uv_rtc_unset_timer(ced_cpu, 1);
+ return 0;
}
static void uv_rtc_interrupt(void)