diff options
| author | Daniel Lezcano <daniel.lezcano@linaro.org> | 2015-11-08 22:39:12 +0100 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2015-12-15 09:42:18 +0100 |
| commit | 254d8b5d59516d670111e0ac14d53fed4d61118d (patch) | |
| tree | 4e2d458b8ddea1ef06a35a1e7b292934533f6114 /drivers/clocksource/h8300_timer8.c | |
| parent | clocksource/drivers/h8300_timer8: Remove pointless irq re-entrant safe code (diff) | |
| download | linux-254d8b5d59516d670111e0ac14d53fed4d61118d.tar.xz linux-254d8b5d59516d670111e0ac14d53fed4d61118d.zip | |
clocksource/drivers/h8300_timer8: Remove irq and lock legacy code
The time framawork takes care of disabling the interrupts and takes a lock
to prevent races.
Remove the legacy code in the driver taking care of the races.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource/h8300_timer8.c')
| -rw-r--r-- | drivers/clocksource/h8300_timer8.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c index 7111b99be6d5..24d91b1a5d5c 100644 --- a/drivers/clocksource/h8300_timer8.c +++ b/drivers/clocksource/h8300_timer8.c @@ -31,7 +31,6 @@ struct timer8_priv { struct clock_event_device ced; unsigned long mapbase; - raw_spinlock_t lock; unsigned long flags; unsigned int rate; unsigned int tcora; @@ -78,10 +77,8 @@ static irqreturn_t timer8_interrupt(int irq, void *dev_id) static void timer8_set_next(struct timer8_priv *p, unsigned long delta) { - unsigned long flags; unsigned long now; - raw_spin_lock_irqsave(&p->lock, flags); if (delta >= 0x10000) pr_warn("delta out of range\n"); now = timer8_get_counter(p); @@ -91,8 +88,6 @@ static void timer8_set_next(struct timer8_priv *p, unsigned long delta) ctrl_outw(delta, p->mapbase + TCORA); else ctrl_outw(now + 1, p->mapbase + TCORA); - - raw_spin_unlock_irqrestore(&p->lock, flags); } static int timer8_enable(struct timer8_priv *p) @@ -108,9 +103,6 @@ static int timer8_enable(struct timer8_priv *p) static int timer8_start(struct timer8_priv *p) { int ret = 0; - unsigned long flags; - - raw_spin_lock_irqsave(&p->lock, flags); if (!(p->flags & FLAG_STARTED)) ret = timer8_enable(p); @@ -120,20 +112,12 @@ static int timer8_start(struct timer8_priv *p) p->flags |= FLAG_STARTED; out: - raw_spin_unlock_irqrestore(&p->lock, flags); - return ret; } static void timer8_stop(struct timer8_priv *p) { - unsigned long flags; - - raw_spin_lock_irqsave(&p->lock, flags); - ctrl_outw(0x0000, p->mapbase + _8TCR); - - raw_spin_unlock_irqrestore(&p->lock, flags); } static inline struct timer8_priv *ced_to_priv(struct clock_event_device *ced) |