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authorIngo Molnar <mingo@elte.hu>2008-12-18 21:54:49 +0100
committerIngo Molnar <mingo@elte.hu>2008-12-18 21:54:49 +0100
commitd110ec3a1e1f522e2e9dfceb9c36d6590c26d2d4 (patch)
tree86b2f8f1d22b74b05239525c55bd42e3db6afc03 /Documentation/ics932s401
parent343e9099c8152daff20e10d6269edec21da44fc0 (diff)
parent55dac3a5553b13891f0ae4bbd11920619b5436d4 (diff)
Merge branch 'linus' into core/rcu
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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!