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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-15 20:01:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-15 20:01:36 -0700 |
| commit | d10902812c9cd5583130a4ebb9ad19c60b68149d (patch) | |
| tree | b1b28587970e8cebf74ba4d61edf49537f619ab7 /drivers/rtc/rtc-mrst.c | |
| parent | 181f977d134a9f8e3f8839f42af655b045fc059e (diff) | |
| parent | 25874a299ef8037df03ce4ada570bc4e42f9748f (diff) | |
| download | linux-d10902812c9cd5583130a4ebb9ad19c60b68149d.tar.bz2 | |
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (27 commits)
x86: Clean up apic.c and apic.h
x86: Remove superflous goal definition of tsc_sync
x86: dt: Correct local apic documentation in device tree bindings
x86: dt: Cleanup local apic setup
x86: dt: Fix OLPC=y/INTEL_CE=n build
rtc: cmos: Add OF bindings
x86: ce4100: Use OF to setup devices
x86: ioapic: Add OF bindings for IO_APIC
x86: dtb: Add generic bus probe
x86: dtb: Add support for PCI devices backed by dtb nodes
x86: dtb: Add device tree support for HPET
x86: dtb: Add early parsing of IO_APIC
x86: dtb: Add irq domain abstraction
x86: dtb: Add a device tree for CE4100
x86: Add device tree support
x86: e820: Remove conditional early mapping in parse_e820_ext
x86: OLPC: Make OLPC=n build again
x86: OLPC: Remove extra OLPC_OPENFIRMWARE_DT indirection
x86: OLPC: Cleanup config maze completely
x86: OLPC: Hide OLPC_OPENFIRMWARE config switch
...
Fix up conflicts in arch/x86/platform/ce4100/ce4100.c
Diffstat (limited to 'drivers/rtc/rtc-mrst.c')
| -rw-r--r-- | drivers/rtc/rtc-mrst.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index 4db96fa306fc..b86bc328463b 100644 --- a/drivers/rtc/rtc-mrst.c +++ b/drivers/rtc/rtc-mrst.c @@ -62,6 +62,17 @@ static inline int is_intr(u8 rtc_intr) return rtc_intr & RTC_IRQMASK; } +static inline unsigned char vrtc_is_updating(void) +{ + unsigned char uip; + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + uip = (vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP); + spin_unlock_irqrestore(&rtc_lock, flags); + return uip; +} + /* * rtc_time's year contains the increment over 1900, but vRTC's YEAR * register can't be programmed to value larger than 0x64, so vRTC @@ -76,7 +87,7 @@ static int mrst_read_time(struct device *dev, struct rtc_time *time) { unsigned long flags; - if (rtc_is_updating()) + if (vrtc_is_updating()) mdelay(20); spin_lock_irqsave(&rtc_lock, flags); |