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authorAndres Salomon <dilinger@collabora.co.uk>2009-12-15 03:00:37 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 17:53:28 +0100
commit82dca611bb516ec5fb7d04077733d6a4b70f52d1 (patch)
tree67e085277bcc06e0aa7bf305e586ce856ef11078 /drivers/misc/Kconfig
parentALSA: cs5535audio: free OLPC quirks from reliance on MGEODE_LX cpu optimization (diff)
downloadlinux-82dca611bb516ec5fb7d04077733d6a4b70f52d1.tar.xz
linux-82dca611bb516ec5fb7d04077733d6a4b70f52d1.zip
cs5535: add a generic MFGPT driver
This is based on the old code on arch/x86/kernel/mfgpt_32.c, except it's not x86 specific, it's modular, and it makes use of a PCI BAR rather than a random MSR. Currently module unloading is not supported; it's uncertain whether or not it can be made work with the hardware. [akpm@linux-foundation.org: add X86 dependency] 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/misc/Kconfig')
-rw-r--r--drivers/misc/Kconfig24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 724d1188a322..d6d6d846f0d6 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -187,6 +187,30 @@ config SGI_XP
this feature will allow for direct communication between SSIs
based on a network adapter and DMA messaging.
+config CS5535_MFGPT
+ tristate "CS5535/CS5536 Geode Multi-Function General Purpose Timer (MFGPT) support"
+ depends on PCI && !MGEODE_LX
+ depends on X86
+ default n
+ help
+ This driver provides access to MFGPT functionality for other
+ drivers that need timers. MFGPTs are available in the CS5535 and
+ CS5536 companion chips that are found in AMD Geode and several
+ other platforms. They have a better resolution and max interval
+ than the generic PIT, and are suitable for use as high-res timers.
+ You probably don't want to enable this manually; other drivers that
+ make use of it should enable it.
+
+config CS5535_MFGPT_DEFAULT_IRQ
+ int
+ default 7
+ help
+ MFGPTs on the CS5535 require an interrupt. The selected IRQ
+ can be overridden as a module option as well as by driver that
+ use the cs5535_mfgpt_ API; however, different architectures might
+ want to use a different IRQ by default. This is here for
+ architectures to set as necessary.
+
config HP_ILO
tristate "Channel interface driver for HP iLO/iLO2 processor"
depends on PCI