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authorMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-06-28 18:23:13 -0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-07-03 21:09:41 +0200
commit9b5db89ea4bfdbb23d4f85f3a7fbf2cd36d20146 (patch)
tree94d68f0a652ab381412336b968ef36094c182973 /Documentation/misc-devices/ics932s401.rst
parent69416739ee3692f4ba890f153d9000e865b73c2d (diff)
docs: misc-devices: convert files without extension to ReST
Those files are also text files. Convert them to ReST and add to the misc-files index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Link: https://lore.kernel.org/r/b7dc829809673bd8cffe0e7bbe9c9308681c6fe2.1561756511.git.mchehab+samsung@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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+========================
+Kernel driver ics932s401
+========================
+
+Supported chips:
+
+ * IDT ICS932S401
+
+ Prefix: 'ics932s401'
+
+ Addresses scanned: I2C 0x69
+
+ Datasheet: Publicly 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!