ARM/iop/time: Migrate to new 'set-state' interface
Migrate iop 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: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
diff --git a/arch/arm/plat-iop/time.c b/arch/arm/plat-iop/time.c
index 6ad65d8..101e8f2 100644
--- a/arch/arm/plat-iop/time.c
+++ b/arch/arm/plat-iop/time.c
@@ -77,41 +77,57 @@
static unsigned long ticks_per_jiffy;
-static void iop_set_mode(enum clock_event_mode mode,
- struct clock_event_device *unused)
+static int iop_set_periodic(struct clock_event_device *evt)
{
u32 tmr = read_tmr0();
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- write_tmr0(tmr & ~IOP_TMR_EN);
- write_tcr0(ticks_per_jiffy - 1);
- write_trr0(ticks_per_jiffy - 1);
- tmr |= (IOP_TMR_RELOAD | IOP_TMR_EN);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- /* ->set_next_event sets period and enables timer */
- tmr &= ~(IOP_TMR_RELOAD | IOP_TMR_EN);
- break;
- case CLOCK_EVT_MODE_RESUME:
- tmr |= IOP_TMR_EN;
- break;
- case CLOCK_EVT_MODE_SHUTDOWN:
- case CLOCK_EVT_MODE_UNUSED:
- default:
- tmr &= ~IOP_TMR_EN;
- break;
- }
+ write_tmr0(tmr & ~IOP_TMR_EN);
+ write_tcr0(ticks_per_jiffy - 1);
+ write_trr0(ticks_per_jiffy - 1);
+ tmr |= (IOP_TMR_RELOAD | IOP_TMR_EN);
write_tmr0(tmr);
+ return 0;
+}
+
+static int iop_set_oneshot(struct clock_event_device *evt)
+{
+ u32 tmr = read_tmr0();
+
+ /* ->set_next_event sets period and enables timer */
+ tmr &= ~(IOP_TMR_RELOAD | IOP_TMR_EN);
+ write_tmr0(tmr);
+ return 0;
+}
+
+static int iop_shutdown(struct clock_event_device *evt)
+{
+ u32 tmr = read_tmr0();
+
+ tmr &= ~IOP_TMR_EN;
+ write_tmr0(tmr);
+ return 0;
+}
+
+static int iop_resume(struct clock_event_device *evt)
+{
+ u32 tmr = read_tmr0();
+
+ tmr |= IOP_TMR_EN;
+ write_tmr0(tmr);
+ return 0;
}
static struct clock_event_device iop_clockevent = {
- .name = "iop_timer0",
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .rating = 300,
- .set_next_event = iop_set_next_event,
- .set_mode = iop_set_mode,
+ .name = "iop_timer0",
+ .features = CLOCK_EVT_FEAT_PERIODIC |
+ CLOCK_EVT_FEAT_ONESHOT,
+ .rating = 300,
+ .set_next_event = iop_set_next_event,
+ .set_state_shutdown = iop_shutdown,
+ .set_state_periodic = iop_set_periodic,
+ .tick_resume = iop_resume,
+ .set_state_oneshot = iop_set_oneshot,
};
static irqreturn_t