clocksource: sh_cmt: Convert timer lock to raw spinlock.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 32fe9ef..98b06ba 100644 (file)
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -48,13 +48,13 @@ struct sh_cmt_priv {
        unsigned long next_match_value;
        unsigned long max_match_value;
        unsigned long rate;
-       spinlock_t lock;
+       raw_spinlock_t lock;
        struct clock_event_device ced;
        struct clocksource cs;
        unsigned long total_cycles;
 };
 
-static DEFINE_SPINLOCK(sh_cmt_lock);
+static DEFINE_RAW_SPINLOCK(sh_cmt_lock);
 
 #define CMSTR -1 /* shared register */
 #define CMCSR 0 /* channel register */
@@ -139,7 +139,7 @@ static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start)
        unsigned long flags, value;
 
        /* start stop register shared by multiple timer channels */
-       spin_lock_irqsave(&sh_cmt_lock, flags);
+       raw_spin_lock_irqsave(&sh_cmt_lock, flags);
        value = sh_cmt_read(p, CMSTR);
 
        if (start)
@@ -148,7 +148,7 @@ static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start)
                value &= ~(1 << cfg->timer_bit);
 
        sh_cmt_write(p, CMSTR, value);
-       spin_unlock_irqrestore(&sh_cmt_lock, flags);
+       raw_spin_unlock_irqrestore(&sh_cmt_lock, flags);
 }
 
 static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate)
@@ -328,9 +328,9 @@ static void sh_cmt_set_next(struct sh_cmt_priv *p, unsigned long delta)
 {
        unsigned long flags;
 
-       spin_lock_irqsave(&p->lock, flags);
+       raw_spin_lock_irqsave(&p->lock, flags);
        __sh_cmt_set_next(p, delta);
-       spin_unlock_irqrestore(&p->lock, flags);
+       raw_spin_unlock_irqrestore(&p->lock, flags);
 }
 
 static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id)
@@ -385,7 +385,7 @@ static int sh_cmt_start(struct sh_cmt_priv *p, unsigned long flag)
        int ret = 0;
        unsigned long flags;
 
-       spin_lock_irqsave(&p->lock, flags);
+       raw_spin_lock_irqsave(&p->lock, flags);
 
        if (!(p->flags & (FLAG_CLOCKEVENT | FLAG_CLOCKSOURCE)))
                ret = sh_cmt_enable(p, &p->rate);
@@ -398,7 +398,7 @@ static int sh_cmt_start(struct sh_cmt_priv *p, unsigned long flag)
        if ((flag == FLAG_CLOCKSOURCE) && (!(p->flags & FLAG_CLOCKEVENT)))
                __sh_cmt_set_next(p, p->max_match_value);
  out:
-       spin_unlock_irqrestore(&p->lock, flags);
+       raw_spin_unlock_irqrestore(&p->lock, flags);
 
        return ret;
 }
@@ -408,7 +408,7 @@ static void sh_cmt_stop(struct sh_cmt_priv *p, unsigned long flag)
        unsigned long flags;
        unsigned long f;
 
-       spin_lock_irqsave(&p->lock, flags);
+       raw_spin_lock_irqsave(&p->lock, flags);
 
        f = p->flags & (FLAG_CLOCKEVENT | FLAG_CLOCKSOURCE);
        p->flags &= ~flag;
@@ -420,7 +420,7 @@ static void sh_cmt_stop(struct sh_cmt_priv *p, unsigned long flag)
        if ((flag == FLAG_CLOCKEVENT) && (p->flags & FLAG_CLOCKSOURCE))
                __sh_cmt_set_next(p, p->max_match_value);
 
-       spin_unlock_irqrestore(&p->lock, flags);
+       raw_spin_unlock_irqrestore(&p->lock, flags);
 }
 
 static struct sh_cmt_priv *cs_to_sh_cmt(struct clocksource *cs)
@@ -435,13 +435,13 @@ static cycle_t sh_cmt_clocksource_read(struct clocksource *cs)
        unsigned long value;
        int has_wrapped;
 
-       spin_lock_irqsave(&p->lock, flags);
+       raw_spin_lock_irqsave(&p->lock, flags);
        value = p->total_cycles;
        raw = sh_cmt_get_counter(p, &has_wrapped);
 
        if (unlikely(has_wrapped))
                raw += p->match_value + 1;
-       spin_unlock_irqrestore(&p->lock, flags);
+       raw_spin_unlock_irqrestore(&p->lock, flags);
 
        return value + raw;
 }
@@ -591,7 +591,7 @@ static int sh_cmt_register(struct sh_cmt_priv *p, char *name,
                p->max_match_value = (1 << p->width) - 1;
 
        p->match_value = p->max_match_value;
-       spin_lock_init(&p->lock);
+       raw_spin_lock_init(&p->lock);
 
        if (clockevent_rating)
                sh_cmt_register_clockevent(p, name, clockevent_rating);