diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 14:58:40 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 14:58:40 -0800 |
commit | b274776c54c320763bc12eb035c0e244f76ccb43 (patch) | |
tree | c75b70d0824a7ae029229b19d61884039abf2127 /arch/arm/mach-at91/at91sam926x_time.c | |
parent | b24174b0cbbe383c5bb6097aeb24480b8fd2d338 (diff) | |
parent | 3b1209e7994c4d31ff9932a7f566ae1c96b3c443 (diff) |
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Arnd Bergmann:
"A large number of cleanups, all over the platforms. This is dominated
largely by the Samsung platforms (s3c, s5p, exynos) and a few of the
others moving code out of arch/arm into more appropriate subsystems.
The clocksource and irqchip drivers are now abstracted to the point
where platforms that are already cleaned up do not need to even
specify the driver they use, it can all get configured from the device
tree as we do for normal device drivers. The clocksource changes
basically touch every single platform in the process.
We further clean up the use of platform specific header files here,
with the goal of turning more of the platforms over to being
"multiplatform" enabled, which implies that they cannot expose their
headers to architecture independent code any more.
It is expected that no functional changes are part of the cleanup.
The overall reduction in total code lines is mostly the result of
removing broken and obsolete code."
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits)
ARM: mvebu: correct gated clock documentation
ARM: kirkwood: add missing include for nsa310
ARM: exynos: move exynos4210-combiner to drivers/irqchip
mfd: db8500-prcmu: update resource passing
drivers/db8500-cpufreq: delete dangling include
ARM: at91: remove NEOCORE 926 board
sunxi: Cleanup the reset code and add meaningful registers defines
ARM: S3C24XX: header mach/regs-mem.h local
ARM: S3C24XX: header mach/regs-power.h local
ARM: S3C24XX: header mach/regs-s3c2412-mem.h local
ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/
ARM: S3C24XX: transform s3c2443 subirqs into new structure
ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs
ARM: S3C24XX: move s3c2443 irq code to irq.c
ARM: S3C24XX: transform s3c2416 irqs into new structure
ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs
ARM: S3C24XX: move s3c2416 irq init to common irq code
ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property
ARM: S3C24XX: Move irq syscore-ops to irq-pm
clocksource: always define CLOCKSOURCE_OF_DECLARE
...
Diffstat (limited to 'arch/arm/mach-at91/at91sam926x_time.c')
-rw-r--r-- | arch/arm/mach-at91/at91sam926x_time.c | 53 |
1 files changed, 27 insertions, 26 deletions
diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c index 358412f1f5f8..3a4bc2e1a65e 100644 --- a/arch/arm/mach-at91/at91sam926x_time.c +++ b/arch/arm/mach-at91/at91sam926x_time.c @@ -104,12 +104,38 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev) } } +static void at91sam926x_pit_suspend(struct clock_event_device *cedev) +{ + /* Disable timer */ + pit_write(AT91_PIT_MR, 0); +} + +static void at91sam926x_pit_reset(void) +{ + /* Disable timer and irqs */ + pit_write(AT91_PIT_MR, 0); + + /* Clear any pending interrupts, wait for PIT to stop counting */ + while (PIT_CPIV(pit_read(AT91_PIT_PIVR)) != 0) + cpu_relax(); + + /* Start PIT but don't enable IRQ */ + pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); +} + +static void at91sam926x_pit_resume(struct clock_event_device *cedev) +{ + at91sam926x_pit_reset(); +} + static struct clock_event_device pit_clkevt = { .name = "pit", .features = CLOCK_EVT_FEAT_PERIODIC, .shift = 32, .rating = 100, .set_mode = pit_clkevt_mode, + .suspend = at91sam926x_pit_suspend, + .resume = at91sam926x_pit_resume, }; @@ -150,19 +176,6 @@ static struct irqaction at91sam926x_pit_irq = { .irq = NR_IRQS_LEGACY + AT91_ID_SYS, }; -static void at91sam926x_pit_reset(void) -{ - /* Disable timer and irqs */ - pit_write(AT91_PIT_MR, 0); - - /* Clear any pending interrupts, wait for PIT to stop counting */ - while (PIT_CPIV(pit_read(AT91_PIT_PIVR)) != 0) - cpu_relax(); - - /* Start PIT but don't enable IRQ */ - pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); -} - #ifdef CONFIG_OF static struct of_device_id pit_timer_ids[] = { { .compatible = "atmel,at91sam9260-pit" }, @@ -211,7 +224,7 @@ static int __init of_at91sam926x_pit_init(void) /* * Set up both clocksource and clockevent support. */ -static void __init at91sam926x_pit_init(void) +void __init at91sam926x_pit_init(void) { unsigned long pit_rate; unsigned bits; @@ -250,12 +263,6 @@ static void __init at91sam926x_pit_init(void) clockevents_register_device(&pit_clkevt); } -static void at91sam926x_pit_suspend(void) -{ - /* Disable timer */ - pit_write(AT91_PIT_MR, 0); -} - void __init at91sam926x_ioremap_pit(u32 addr) { #if defined(CONFIG_OF) @@ -272,9 +279,3 @@ void __init at91sam926x_ioremap_pit(u32 addr) if (!pit_base_addr) panic("Impossible to ioremap PIT\n"); } - -struct sys_timer at91sam926x_timer = { - .init = at91sam926x_pit_init, - .suspend = at91sam926x_pit_suspend, - .resume = at91sam926x_pit_reset, -}; |