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hwmon: (pmbus) Support per-page exponent in linear mode
authorGuenter Roeck <linux@roeck-us.net>
Fri, 31 Jan 2014 03:51:14 +0000 (19:51 -0800)
committerGuenter Roeck <linux@roeck-us.net>
Mon, 3 Feb 2014 05:21:40 +0000 (21:21 -0800)
Some chips use different exponents for sensors on different pages
or rails. Detect and store exponent per page to support this situation.

This fixes a problem with wrong voltages seen on UCD90120.

Reported-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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