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authorLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-11-28 15:23:52 +1100
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-11-28 15:23:52 +1100
commitb5a20aa2657063cbf3b47fc700603180de4bb554 (patch)
tree9419fb851cda53a7f1fd67a3697bdf8550df19e4 /Documentation/ics932s401
parentcc09c0dc57de7f7d2ed89d480b5653e5f6a32f2c (diff)
parented313489badef16d700f5a3be50e8fd8f8294bc8 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
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+Kernel driver ics932s401
+======================
+
+Supported chips:
+ * IDT ICS932S401
+ Prefix: 'ics932s401'
+ Addresses scanned: I2C 0x69
+ Datasheet: Publically available at the IDT website
+
+Author: Darrick J. Wong
+
+Description
+-----------
+
+This driver implements support for the IDT ICS932S401 chip family.
+
+This chip has 4 clock outputs--a base clock for the CPU (which is likely
+multiplied to get the real CPU clock), a system clock, a PCI clock, a USB
+clock, and a reference clock. The driver reports selected and actual
+frequency. If spread spectrum mode is enabled, the driver also reports by what
+percent the clock signal is being spread, which should be between 0 and -0.5%.
+All frequencies are reported in KHz.
+
+The ICS932S401 monitors all inputs continuously. The driver will not read
+the registers more often than once every other second.
+
+Special Features
+----------------
+
+The clocks could be reprogrammed to increase system speed. I will not help you
+do this, as you risk damaging your system!