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| author |   Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> | 2007-10-23 18:19:13 +0900 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2007-10-29 19:35:33 +0000 |
| commit | c984c87826a6e3b2adae1fab8d5bddcf26af8c78 (patch) | |
| tree | f326319dcd672bde4afcb69d128ba46df6d14e56 /arch/mips/kernel/cevt-gt641xx.c | |
| parent | [MIPS] Alchemy: micro-optimizatize time code. (diff) | |
| download | linux-dev-c984c87826a6e3b2adae1fab8d5bddcf26af8c78.tar.xz linux-dev-c984c87826a6e3b2adae1fab8d5bddcf26af8c78.zip | |
[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/mips/kernel/cevt-gt641xx.c')
| -rw-r--r-- | arch/mips/kernel/cevt-gt641xx.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/mips/kernel/cevt-gt641xx.c b/arch/mips/kernel/cevt-gt641xx.c index 4c651b2680f9..155ef81ec216 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(>641xx_timer_lock, flags); + spin_lock(>641xx_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(>641xx_timer_lock, flags); + spin_unlock(>641xx_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(>641xx_timer_lock, flags); + spin_lock(>641xx_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(>641xx_timer_lock, flags); + spin_unlock(>641xx_timer_lock); } static void gt641xx_timer0_event_handler(struct clock_event_device *dev) |