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authorIngo Molnar <mingo@elte.hu>2008-11-19 09:44:37 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-19 09:44:37 +0100
commit3ac3ba0b396fd99550e08034b0e4c27fdf39c252 (patch)
treef9f69fac41d66540a37a33808714d055d702328f /Documentation/ics932s401
parent934352f214b3251eb0793c1209d346595a661d80 (diff)
parent7f0f598a0069d1ab072375965a4b69137233169c (diff)
Merge branch 'linus' into sched/core
Conflicts: kernel/Makefile
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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!