hwmon: (lm80) Simplify TEMP_FROM_REG

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TEMP_FROM_REG gets 12 bits of temperature data in the upper 12 bit
of a signed 16 bit parameter, with the integer part (including sign)
in the upper 8 bit and the remainder in bit 4..7. The lower 4 bit of
the 16 bit data is always 0. We can use that information to convert
the temperature directly into display data (1/1000th of degree C).

Note that the stored temperature data is not shifted right as the
comment claimed, so remove that misleading comment.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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Guenter Roeck 2014-04-13 09:15:09 -07:00

parent a0ac840d99

commit 9028ff8e3d

1 changed files with 3 additions and 14 deletions

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drivers/hwmon/lm80.c

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