diff options
Diffstat (limited to 'drivers/clocksource/timer-keystone.c')
| -rw-r--r-- | drivers/clocksource/timer-keystone.c | 46 |
1 files changed, 17 insertions, 29 deletions
diff --git a/drivers/clocksource/timer-keystone.c b/drivers/clocksource/timer-keystone.c index 0250354f7..1cea08cf6 100644 --- a/drivers/clocksource/timer-keystone.c +++ b/drivers/clocksource/timer-keystone.c @@ -72,10 +72,10 @@ static inline void keystone_timer_barrier(void) /** * keystone_timer_config: configures timer to work in oneshot/periodic modes. - * @ mode: mode to configure + * @ mask: mask of the mode to configure * @ period: cycles number to configure for */ -static int keystone_timer_config(u64 period, enum clock_event_mode mode) +static int keystone_timer_config(u64 period, int mask) { u32 tcr; u32 off; @@ -84,16 +84,7 @@ static int keystone_timer_config(u64 period, enum clock_event_mode mode) off = tcr & ~(TCR_ENAMODE_MASK); /* set enable mode */ - switch (mode) { - case CLOCK_EVT_MODE_ONESHOT: - tcr |= TCR_ENAMODE_ONESHOT_MASK; - break; - case CLOCK_EVT_MODE_PERIODIC: - tcr |= TCR_ENAMODE_PERIODIC_MASK; - break; - default: - return -1; - } + tcr |= mask; /* disable timer */ keystone_timer_writel(off, TCR); @@ -138,24 +129,19 @@ static irqreturn_t keystone_timer_interrupt(int irq, void *dev_id) static int keystone_set_next_event(unsigned long cycles, struct clock_event_device *evt) { - return keystone_timer_config(cycles, evt->mode); + return keystone_timer_config(cycles, TCR_ENAMODE_ONESHOT_MASK); } -static void keystone_set_mode(enum clock_event_mode mode, - struct clock_event_device *evt) +static int keystone_shutdown(struct clock_event_device *evt) { - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - keystone_timer_config(timer.hz_period, CLOCK_EVT_MODE_PERIODIC); - break; - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_ONESHOT: - keystone_timer_disable(); - break; - default: - break; - } + keystone_timer_disable(); + return 0; +} + +static int keystone_set_periodic(struct clock_event_device *evt) +{ + keystone_timer_config(timer.hz_period, TCR_ENAMODE_PERIODIC_MASK); + return 0; } static void __init keystone_timer_init(struct device_node *np) @@ -166,7 +152,7 @@ static void __init keystone_timer_init(struct device_node *np) int irq, error; irq = irq_of_parse_and_map(np, 0); - if (irq == NO_IRQ) { + if (!irq) { pr_err("%s: failed to map interrupts\n", __func__); return; } @@ -222,7 +208,9 @@ static void __init keystone_timer_init(struct device_node *np) /* setup clockevent */ event_dev->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; event_dev->set_next_event = keystone_set_next_event; - event_dev->set_mode = keystone_set_mode; + event_dev->set_state_shutdown = keystone_shutdown; + event_dev->set_state_periodic = keystone_set_periodic; + event_dev->set_state_oneshot = keystone_shutdown; event_dev->cpumask = cpu_all_mask; event_dev->owner = THIS_MODULE; event_dev->name = TIMER_NAME; |