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author | Jean Delvare <khali@linux-fr.org> | 2008-10-26 17:04:39 +0100 |
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committer | Jean Delvare <khali@linux-fr.org> | 2008-10-26 17:04:39 +0100 |
commit | ec38fa2b35f13e7fa1d676a5bc997d0df1b02574 (patch) | |
tree | df2ffd6eb0af65516cf0aae37c80c9fd1eee5dc6 /Documentation/hwmon/lm90 | |
parent | hwmon-vid: Add support for AMD family 10h CPUs (diff) | |
download | linux-ec38fa2b35f13e7fa1d676a5bc997d0df1b02574.tar.xz linux-ec38fa2b35f13e7fa1d676a5bc997d0df1b02574.zip |
hwmon: (lm90) Fix handling of hysteresis value
There are several problems in the way the hysteresis value is handled
by the lm90 driver:
* In show_temphyst(), specific handling of the MAX6646 is missing, so
the hysteresis is reported incorrectly if the critical temperature
is over 127 degrees C.
* In set_temphyst(), the new hysteresis register value is written to
the chip but data->temp_hyst isn't updated accordingly, so there is
a short period of time (up to 2 seconds) where the old hystereris
value will be returned while the new one is already active.
* In set_temphyst(), the critical temperature which is used as a base
to compute the value of the hysteresis register lacks
device-specific handling. As a result, the value of the hysteresis
register might be incorrect for the ADT7461 and MAX6646 chips.
Fix these 3 bugs.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: Nate Case <ncase@xes-inc.com>
Diffstat (limited to 'Documentation/hwmon/lm90')
0 files changed, 0 insertions, 0 deletions