From: Viresh Kumar <viresh.ku...@linaro.org>
Migrate um 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: Jeff Dike <jd...@addtoit.com>
Cc: Richard Weinberger <rich...@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: user-mode-linux-u...@lists.sourceforge.net
Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezc...@linaro.org>
---
arch/um/kernel/time.c | 44 ++++++++++++++++++++------------------------
1 file changed, 20 insertions(+), 24 deletions(-)
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index 117568d..5af441e 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -22,23 +22,16 @@ void timer_handler(int sig, struct siginfo *unused_si,
struct uml_pt_regs *regs)
local_irq_restore(flags);
}
-static void itimer_set_mode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int itimer_shutdown(struct clock_event_device *evt)
{
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- set_interval();
- break;
-
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_ONESHOT:
- disable_timer();
- break;
-
- case CLOCK_EVT_MODE_RESUME:
- break;
- }
+ disable_timer();
+ return 0;
+}
+
+static int itimer_set_periodic(struct clock_event_device *evt)
+{
+ set_interval();
+ return 0;
}
static int itimer_next_event(unsigned long delta,
@@ -48,14 +41,17 @@ static int itimer_next_event(unsigned long delta,
}
static struct clock_event_device itimer_clockevent = {
- .name = "itimer",
- .rating = 250,
- .cpumask = cpu_all_mask,
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .set_mode = itimer_set_mode,
- .set_next_event = itimer_next_event,
- .shift = 32,
- .irq = 0,
+ .name = "itimer",
+ .rating = 250,
+ .cpumask = cpu_all_mask,
+ .features = CLOCK_EVT_FEAT_PERIODIC |
+ CLOCK_EVT_FEAT_ONESHOT,
+ .set_state_shutdown = itimer_shutdown,
+ .set_state_periodic = itimer_set_periodic,
+ .set_state_oneshot = itimer_shutdown,
+ .set_next_event = itimer_next_event,
+ .shift = 32,
+ .irq = 0,
};
static irqreturn_t um_timer(int irq, void *dev)
--
1.9.1
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