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| author | Andres Salomon <dilinger@collabora.co.uk> | 2009-12-14 18:00:38 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-15 08:53:28 -0800 |
| commit | c30d7d2b9987e189bc6d5ec6635785b91a6ee81e (patch) | |
| tree | 521d7185b8612fa6bd9589923d8da5884cc2e53e /drivers/clocksource/Kconfig | |
| parent | 82dca611bb516ec5fb7d04077733d6a4b70f52d1 (diff) | |
| download | kernel_samsung_crespo-c30d7d2b9987e189bc6d5ec6635785b91a6ee81e.zip kernel_samsung_crespo-c30d7d2b9987e189bc6d5ec6635785b91a6ee81e.tar.gz kernel_samsung_crespo-c30d7d2b9987e189bc6d5ec6635785b91a6ee81e.tar.bz2 | |
cs5535: add a generic clock event MFGPT driver
This is based on the old code in arch/x86/kernel/mfgpt_32.c, but is
modular and not Geode-specific. There's no reason why the clock event
device needs to be registered so early at boot; the clockevent code is
perfectly capable of dynamic switching.
[akpm@linux-foundation.org: add linux/irq.h include]
Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Cc: Jordan Crouse <jordan@cosmicpenguin.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Chris Ball <cjb@laptop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/clocksource/Kconfig')
| -rw-r--r-- | drivers/clocksource/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig new file mode 100644 index 0000000..08f726c --- /dev/null +++ b/drivers/clocksource/Kconfig @@ -0,0 +1,9 @@ +config CS5535_CLOCK_EVENT_SRC + tristate "CS5535/CS5536 high-res timer (MFGPT) events" + depends on GENERIC_TIME && GENERIC_CLOCKEVENTS && CS5535_MFGPT + help + This driver provides a clock event source based on the MFGPT + timer(s) in the CS5535 and CS5536 companion chips. + MFGPTs have a better resolution and max interval than the + generic PIT, and are suitable for use as high-res timers. + |