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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2009-12-17 12:43:29 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2010-01-22 17:04:52 +0100 |
| commit | a602f0f2f04f150fa1f7312b9e601e8e1a5afe10 (patch) | |
| tree | 108f52cfb0450127b0d9390bab101980ca31d73d /arch | |
| parent | arm/at91: Don't disable irqs in set_next_event and set_mode callbacks (diff) | |
| download | linux-a602f0f2f04f150fa1f7312b9e601e8e1a5afe10.tar.xz linux-a602f0f2f04f150fa1f7312b9e601e8e1a5afe10.zip | |
arm/{pxa,sa1100,nomadik}: Don't disable irqs in set_next_event and set_mode
These functions are called with irqs already off. This commit removes
the calls to raw_local_irq_save and raw_local_irq_restore on platforms
that don't have to use a shared interrupt for their timekeeping.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-pxa/time.c | 10 | ||||
| -rw-r--r-- | arch/arm/mach-sa1100/time.c | 8 | ||||
| -rw-r--r-- | arch/arm/plat-nomadik/timer.c | 9 |
3 files changed, 3 insertions, 24 deletions
diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c index 750c448db672..293e40aeaf29 100644 --- a/arch/arm/mach-pxa/time.c +++ b/arch/arm/mach-pxa/time.c @@ -76,14 +76,12 @@ pxa_ost0_interrupt(int irq, void *dev_id) static int pxa_osmr0_set_next_event(unsigned long delta, struct clock_event_device *dev) { - unsigned long flags, next, oscr; + unsigned long next, oscr; - raw_local_irq_save(flags); OIER |= OIER_E0; next = OSCR + delta; OSMR0 = next; oscr = OSCR; - raw_local_irq_restore(flags); return (signed)(next - oscr) <= MIN_OSCR_DELTA ? -ETIME : 0; } @@ -91,23 +89,17 @@ pxa_osmr0_set_next_event(unsigned long delta, struct clock_event_device *dev) static void pxa_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *dev) { - unsigned long irqflags; - switch (mode) { case CLOCK_EVT_MODE_ONESHOT: - raw_local_irq_save(irqflags); OIER &= ~OIER_E0; OSSR = OSSR_M0; - raw_local_irq_restore(irqflags); break; case CLOCK_EVT_MODE_UNUSED: case CLOCK_EVT_MODE_SHUTDOWN: /* initializing, released, or preparing for suspend */ - raw_local_irq_save(irqflags); OIER &= ~OIER_E0; OSSR = OSSR_M0; - raw_local_irq_restore(irqflags); break; case CLOCK_EVT_MODE_RESUME: diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c index b9cbb56d6e9d..74b6e0e570b6 100644 --- a/arch/arm/mach-sa1100/time.c +++ b/arch/arm/mach-sa1100/time.c @@ -35,14 +35,12 @@ static irqreturn_t sa1100_ost0_interrupt(int irq, void *dev_id) static int sa1100_osmr0_set_next_event(unsigned long delta, struct clock_event_device *c) { - unsigned long flags, next, oscr; + unsigned long next, oscr; - raw_local_irq_save(flags); OIER |= OIER_E0; next = OSCR + delta; OSMR0 = next; oscr = OSCR; - raw_local_irq_restore(flags); return (signed)(next - oscr) <= MIN_OSCR_DELTA ? -ETIME : 0; } @@ -50,16 +48,12 @@ sa1100_osmr0_set_next_event(unsigned long delta, struct clock_event_device *c) static void sa1100_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *c) { - unsigned long flags; - switch (mode) { case CLOCK_EVT_MODE_ONESHOT: case CLOCK_EVT_MODE_UNUSED: case CLOCK_EVT_MODE_SHUTDOWN: - raw_local_irq_save(flags); OIER &= ~OIER_E0; OSSR = OSSR_M0; - raw_local_irq_restore(flags); break; case CLOCK_EVT_MODE_RESUME: diff --git a/arch/arm/plat-nomadik/timer.c b/arch/arm/plat-nomadik/timer.c index 62f18ad43a28..fa7cb3a57cbf 100644 --- a/arch/arm/plat-nomadik/timer.c +++ b/arch/arm/plat-nomadik/timer.c @@ -49,24 +49,17 @@ static struct clocksource nmdk_clksrc = { static void nmdk_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev) { - unsigned long flags; - switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - /* enable interrupts -- and count current value? */ - raw_local_irq_save(flags); + /* count current value? */ writel(readl(mtu_base + MTU_IMSC) | 1, mtu_base + MTU_IMSC); - raw_local_irq_restore(flags); break; case CLOCK_EVT_MODE_ONESHOT: BUG(); /* Not supported, yet */ /* FALLTHROUGH */ case CLOCK_EVT_MODE_SHUTDOWN: case CLOCK_EVT_MODE_UNUSED: - /* disable irq */ - raw_local_irq_save(flags); writel(readl(mtu_base + MTU_IMSC) & ~1, mtu_base + MTU_IMSC); - raw_local_irq_restore(flags); break; case CLOCK_EVT_MODE_RESUME: break; |