Fix bug where signed data was processed as unsigned. The bug previously
resulted in negative temperature readings wrapping around, eg -10 became
245.
Signed-off-by: Jeff Dischler <jdischler@xes-inc.com>
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Poll the ds1621 NV Memory Busy bit instead of waiting a static amount of
time for register writes.
Also add config retister bit defines.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
This patch is based on a patch submitted by Jean-Christophe PLAGNIOL-VILLARD
on 18th May 2008 as part of a general i386 / sc520 fixup which was never
applied
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
This patch adds support for the National LM63 temperature
sensor with integrated fan control. It's used on the GDSys
Neo board (405EP) which will be submitted later.
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Acked-by: Stefan Roese <sr@denx.de>
The checks for CFG_EEPROM_PAGE_WRITE_ENABLE and
CFG_EEPROM_PAGE_WRITE_BITS in various temperature
sensor drivers are not necessary
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Clean Makefile
Move device specific values to driver for better reading
Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stefan Roese <sr@denx.de>
On AD7414 the first value upon bootup is not read correctly.
This is most likely because of the 800ms update time of the
temp register in normal update mode. To get current values
each time we issue the "dtt" command including upon powerup
we switch into one-short mode.
This patch fixes the problem on AD7414 equipped boards (Sequoia,
Canyonlands etc), that temp value printed in the bootup log was
incorrect.
Signed-off-by: Stefan Roese <sr@denx.de>
When the LM73 temperature sensor measures a temperature below 0 C, the
current driver does not perform sign extension, so the result returned is
512 C too high. This patch fixes the problem, and does general cleanup
of the code.
Signed-off-by: Larry Johnson <lrj@acm.org>
When the LM75 temperature sensor measures a temperature below 0 C, the
current driver does not perform sign extension, so the result returned is
256 C too high. This patch fixes the problem.
Signed-off-by: Larry Johnson <lrj@acm.org>
