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authorYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>2007-10-23 18:19:13 +0900
committerRalf Baechle <ralf@linux-mips.org>2007-10-29 19:35:33 +0000
commitc984c87826a6e3b2adae1fab8d5bddcf26af8c78 (patch)
treef326319dcd672bde4afcb69d128ba46df6d14e56 /arch
parent2c771a4c28a71b6acc0bd6b7ef56e0a1849c9b09 (diff)
[MIPS] time: Use non-interrupt locks in GT641xx clockevent driver
set_next_event() and set_mode() are always called with interrupt disabled. irqsave and irqrestore are not necessary for spinlock. Pointed out by Atsushi Nemoto. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/kernel/cevt-gt641xx.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/mips/kernel/cevt-gt641xx.c b/arch/mips/kernel/cevt-gt641xx.c
index 4c651b2680f..155ef81ec21 100644
--- a/arch/mips/kernel/cevt-gt641xx.c
+++ b/arch/mips/kernel/cevt-gt641xx.c
@@ -49,10 +49,9 @@ int gt641xx_timer0_state(void)
static int gt641xx_timer0_set_next_event(unsigned long delta,
struct clock_event_device *evt)
{
- unsigned long flags;
u32 ctrl;
- spin_lock_irqsave(&gt641xx_timer_lock, flags);
+ spin_lock(&gt641xx_timer_lock);
ctrl = GT_READ(GT_TC_CONTROL_OFS);
ctrl &= ~(GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK);
@@ -61,7 +60,7 @@ static int gt641xx_timer0_set_next_event(unsigned long delta,
GT_WRITE(GT_TC0_OFS, delta);
GT_WRITE(GT_TC_CONTROL_OFS, ctrl);
- spin_unlock_irqrestore(&gt641xx_timer_lock, flags);
+ spin_unlock(&gt641xx_timer_lock);
return 0;
}
@@ -69,10 +68,9 @@ static int gt641xx_timer0_set_next_event(unsigned long delta,
static void gt641xx_timer0_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt)
{
- unsigned long flags;
u32 ctrl;
- spin_lock_irqsave(&gt641xx_timer_lock, flags);
+ spin_lock(&gt641xx_timer_lock);
ctrl = GT_READ(GT_TC_CONTROL_OFS);
ctrl &= ~(GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK);
@@ -90,7 +88,7 @@ static void gt641xx_timer0_set_mode(enum clock_event_mode mode,
GT_WRITE(GT_TC_CONTROL_OFS, ctrl);
- spin_unlock_irqrestore(&gt641xx_timer_lock, flags);
+ spin_unlock(&gt641xx_timer_lock);
}
static void gt641xx_timer0_event_handler(struct clock_event_device *dev)