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faf9b61632
This patch contains 2 sets of fixes for the abituguru:
1) Much improved timeout handling, drasticly reducing the amount of
timeout errors on some motherboards
2) Fix the exit paths in the bank1 sensor type detect code to always
restore the original settings even on an error. Without this our
special test settings could remain seriously confusing the system
BIOS's setup menu.
Both are very much related and are must haves, to avoid messing up the
uguru CMOS settings.
Detailed changes:
- Much improved timeout / wait for status handling. Many thanks to Sunil
Kumar, for all his testing, ideas and patches! The code now first busy
waits, polling the uguru for the expected status as this usually
succeeds pretty quickly (within 90 reads). To avoid unnecessary CPU burn
in timeout conditions, the amount of busy waiting has been halved from
previous versions (120 tries instead of 250). This is not a problem,
because this version goes to sleep after 120 attemps for 1 jiffy and
then tries again, it does this sleep and try again 5 times before
finally giving up. This (almost?) completly removes the timeout errors
some people have seen regulary. Apparently some older uguru versions
sometimes are distracted for a (relatively) long time. This solves this.
- These timeout errors not only occur in the sending address part of
reading the uguru but also in the wait for read state, so errors in
this state are now handled as retryable just like send address state
errors and are only logged and reported to userspace if 3 executive
tries fail.
- Fix a very nasty bug in the bank1 sensor type detection code, where it
would not restore the original settings in any of the error paths!
- Since not successfully restoring the original settings can seriously
confuse the system BIOS (hang when entering the relevant setup menu),
we now try restoring them 3 times before giving up.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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| .. | ||
| abituguru.c | ||
| adm1021.c | ||
| adm1025.c | ||
| adm1026.c | ||
| adm1031.c | ||
| adm9240.c | ||
| asb100.c | ||
| atxp1.c | ||
| ds1621.c | ||
| f71805f.c | ||
| fscher.c | ||
| fscpos.c | ||
| gl518sm.c | ||
| gl520sm.c | ||
| hdaps.c | ||
| hwmon-vid.c | ||
| hwmon.c | ||
| it87.c | ||
| Kconfig | ||
| lm63.c | ||
| lm70.c | ||
| lm75.c | ||
| lm75.h | ||
| lm77.c | ||
| lm78.c | ||
| lm80.c | ||
| lm83.c | ||
| lm85.c | ||
| lm87.c | ||
| lm90.c | ||
| lm92.c | ||
| Makefile | ||
| max1619.c | ||
| pc87360.c | ||
| sis5595.c | ||
| smsc47b397.c | ||
| smsc47m1.c | ||
| smsc47m192.c | ||
| via686a.c | ||
| vt8231.c | ||
| w83l785ts.c | ||
| w83627ehf.c | ||
| w83627hf.c | ||
| w83781d.c | ||
| w83791d.c | ||
| w83792d.c | ||