summaryrefslogtreecommitdiffstats
path: root/drivers/hwmon
Commit message (Collapse)AuthorAgeFilesLines
* hwmon: applesmc: add support for iMac 8Henrik Rydberg2008-11-061-0/+9
| | | | | | | | | Add temperature sensor support for iMac 8. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Tested-by: Klaus Doblmann <klaus.doblmann@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: add support for Macbook Pro 5Henrik Rydberg2008-11-061-0/+10
| | | | | | | | | Add accelerometer, backlight and temperature sensor support for the new unibody Macbook Pro 5. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: add support for Macbook 5Henrik Rydberg2008-11-061-0/+9
| | | | | | | | | | Add accelerometer, backlight and temperature sensor support for the new unibody Macbook 5. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Tested-by: David M. Lary <dmlary@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: add support for iMac 5Henrik Rydberg2008-11-061-0/+8
| | | | | | | | | Add temperature sensor support for iMac 5. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Tested-by: Ricky Campbell <johnrcampbell@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: (abituguru3) enable DMI probing feature on AW9D-MAXAlistair John Strachan2008-10-261-1/+1
| | | | | | | | | | Switch the AW9D-MAX over from port probing to the preferred DMI probe method. Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk> Tested-by: Justin Piszcz <jpiszcz@lucidpixels.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (abituguru3) Cosmetic whitespace fixesAlistair John Strachan2008-10-261-14/+14
| | | | | | | | | | | | | | | | | | As the probable result of zealous copy/pasting, many supported boards contain sensor names with trailing whitespace. Though this is not a huge problem, it is inconsistent with other sensor names, and with other similar hwmon drivers. Additionally, the DMI nag message added in 2.6.27 was missing a space between two sentence fragments -- might as well clean that up too. Doesn't alter any kernel text, just data. Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk> Reported-by: Justin Piszcz <jpiszcz@lucidpixels.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (adt7473) Fix voltage conversion routinesJean Delvare2008-10-261-20/+9
| | | | | | | | | | | | Fix voltage conversion routines. Based on an earlier patch from Paulius Zaleckas. According to the datasheet voltage is scaled with resistors and value 192 is nominal voltage. 0 is 0V. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Cc: Darrick J. Wong <djwong@us.ibm.com>
* hwmon: (lm90) Add support for the LM99 16 degree offsetJean Delvare2008-10-261-4/+33
| | | | | | | | | | The LM99 differs from the LM86, LM89 and LM90 in that it reports remote temperatures (temp2) 16 degrees lower than they really are. So far we have been cheating and handled this in userspace but it really should be handled by the driver directly. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Matthew Garrett <mjg59@srcf.ucam.org>
* hwmon: (lm90) Fix handling of hysteresis valueJean Delvare2008-10-261-3/+12
| | | | | | | | | | | | | | | | | | | | | | | 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>
* hwmon-vid: Add support for AMD family 10h CPUsJean Delvare2008-10-261-0/+1
| | | | | | | | The AMD family 10h CPUs use the same VID decoding table as the family 0Fh CPUs. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Rudolf Marek <r.marek@assembler.cz>
* hwmon: (w83781d) Fix linking when built-inGeert Uytterhoeven2008-10-261-2/+2
| | | | | | | | | | | | | | | When w83781d is built-in, the final links fails with the following vague error message: `.exit.text' referenced in section `.init.text' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o w83781d_isa_unregister() cannot be marked __exit, as it's also called from sensors_w83781d_init(), which is marked __init. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: applesmc: lighter wait mechanism, drastic improvementHenrik Rydberg2008-10-201-10/+12
| | | | | | | | | | | | | | | | | | | The read fail ratio is sensitive to the delay between the first byte written and the first byte read; apparently the sensors cannot be rushed. Increasing the minimum wait time, without changing the total wait time, improves the fail ratio from a 8% chance that any of the sensors fails in one read, down to 0.4%, on a Macbook Air. On a Macbook Pro 3,1, the effect is even more apparent. By reducing the number of status polls, the ratio is further improved to below 0.1%. Finally, increasing the total wait time brings the fail ratio down to virtually zero. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Tested-by: Bob McElrath <bob@mcelrath.org> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: Add support for Macbook Pro 3Henrik Rydberg2008-10-201-0/+9
| | | | | | | | | | | | Add temperature sensor support for Macbook Pro 3. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Riki Oktarianto <rkoktarianto@gmail.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: Add support for Macbook Pro 4Henrik Rydberg2008-10-201-0/+9
| | | | | | | | | | | | Adds temperature sensor support for the Macbook Pro 4. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Riki Oktarianto <rkoktarianto@gmail.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/hwmon/applesmc.c: remove unneeded castsAndrew Morton2008-10-201-8/+8
| | | | | | | | | | | | dmi_system_id.driver_data is already void*. Cc: Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Riki Oktarianto <rkoktarianto@gmail.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: add support for Macbook AirHenrik Rydberg2008-10-201-0/+9
| | | | | | | | | | | | | This patch adds accelerometer, backlight and temperature sensor support for the Macbook Air. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Riki Oktarianto <rkoktarianto@gmail.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: allow for variable ALV0 and ALV1 package lengthHenrik Rydberg2008-10-201-5/+15
| | | | | | | | | | | | | | On some recent Macbooks, the package length for the light sensors ALV0 and ALV1 has changed from 6 to 10. This patch allows for a variable package length encompassing both variants. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Riki Oktarianto <rkoktarianto@gmail.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: prolong status waitHenrik Rydberg2008-10-201-2/+2
| | | | | | | | | | | | | | | | | The time to wait for a status change while reading or writing to the SMC ports is a balance between read reliability and system performance. The current setting yields rougly three errors in a thousand when simultaneously reading three different temperature values on a Macbook Air. This patch increases the setting to a value yielding roughly one error in ten thousand, with no noticable system performance degradation. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Riki Oktarianto <rkoktarianto@gmail.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: fix the 'wait status failed: c != 8' problemHenrik Rydberg2008-10-201-8/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | On many Macbooks since mid 2007, the Pro, C2D and Air models, applesmc fails to read some or all SMC ports. This problem has various effects, such as flooded logfiles, malfunctioning temperature sensors, accelerometers failing to initialize, and difficulties getting backlight functionality to work properly. The root of the problem seems to be the command protocol. The current code sends out a command byte, then repeatedly polls for an ack before continuing to send or recieve data. From experiments leading to this patch, it seems the command protocol never quite worked or changed so that one now sends a command byte, waits a little bit, polls for an ack, and if it fails, repeats the whole thing by sending the command byte again. This patch implements a send_command function according to the new interpretation of the protocol, and should work also for earlier models. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Riki Oktarianto <rkoktarianto@gmail.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: applesmc: specified number of bytes to read should match actualHenrik Rydberg2008-10-201-1/+1
| | | | | | | | | | | | | | At one single place in the code, the specified number of bytes to read and the actual number of bytes read differ by one. This one-liner patch fixes that inconsistency. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Cc: Nicolas Boichat <nicolas@boichat.ch> Cc: Riki Oktarianto <rkoktarianto@gmail.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon/pc87360 separate alarm files: add therm-min/max/crit-alarmsJim Cromie2008-10-201-1/+57
| | | | | | | | | | | | | | | | | Adds therm-min/max/crit-alarm callbacks, sensor-device-attribute declarations, and refs to those new decls in the macro used to initialize the therm_group (of sysfs files) The thermistors use voltage channels to measure; so they don't have a fault-alarm, but unlike the other voltages, they do have an overtemp, which we call crit (by convention). [akpm@linux-foundation.org: cleanup] Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon/pc87360 separate alarm files: add dev_dbg helpJim Cromie2008-10-201-4/+12
| | | | | | | | | | | | temp and vin status register values may be set by chip specifications, set again by bios, or by this previously loaded driver. Debug output nicely displays modprobe init=\d actions. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon/pc87360 separate alarm files: define LDNI_MAX constJim Cromie2008-10-201-2/+3
| | | | | | | | | | | Driver handles 3 logical devices in fixed length array. Give this a define-d constant. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon/pc87360 separate alarm files: add temp-min/max/crit/fault-alarmsJim Cromie2008-10-201-4/+80
| | | | | | | | | | | | | Adds temp-min/max/crit/fault-alarm callbacks, sensor-device-attribute declarations, and refs to those new decls in the macro used to initialize the temp_group (of sysfs files) [akpm@linux-foundation.org: cleanups] Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon/pc87360 separate alarm files: add in-min/max-alarmsJim Cromie2008-10-201-1/+51
| | | | | | | | | | | | | Adds vin-min/max-alarm callbacks, sensor-device-attribute declarations, and refs to those new decls in the macro used to initialize the vin_group (of sysfs files) [akpm@linux-foundation.org: cleanups] Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon/pc87360 separate alarm files: define some constantsJim Cromie2008-10-201-11/+22
| | | | | | | | | | | | | | | | | | | | | | | Bring hwmon/pc87360 into agreement with Documentation/hwmon/sysfs-interface. Patchset adds separate limit alarms for voltages and temps, it also adds temp[123]_fault files. On my Soekris, temps 1,2 are unused/unconnected, so temp[123]_fault = 1,1,0 respectively. This agrees with /usr/bin/sensors, which has always shown them as OPEN. Temps 4,5,6 are thermistor based, and dont have a fault bit in their status register. This patch: 2 different kinds of constants added: - CHAN_ALM_* constants for (later) vin, temp alarm callbacks. - CHAN_* conversion constants, used in _init_device, partly for RW1C bits Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon: (adm1026) Prevent log spammingJean Delvare2008-10-171-4/+4
| | | | | | | | | When debugging is enabled, the adm1026 driver currently logs the message "Setting VID from GPIO11-15" 108 times each time you run "sensors". Once should be enough. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Philip Pokorny <ppokorny@penguincomputing.com>
* hwmon: (adm1026) Fix debug messagesJean Delvare2008-10-171-5/+4
| | | | | | | | * Add missing new-line to one debug message. * Remove leading colon from 3 debug messages. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Philip Pokorny <ppokorny@penguincomputing.com>
* hwmon: (adm1029) Use mask for fan_div valueCorentin Labbe2008-10-171-2/+3
| | | | | | | | This is my patch for testing correct values of fan div in adm1029 and prevent a division by 0 for some (unlikely) register values. Signed-off-by: Corentin Labbe <corentin.labbe@geomatys.fr> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (ibmaem) Automatically load on IBM systems via DMIDarrick J. Wong2008-10-171-0/+7
| | | | | Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (ibmpex) Automatically load on IBM systems via DMIDarrick J. Wong2008-10-171-0/+6
| | | | | Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83781d) Use new style driver bindingWolfgang Grandegger2008-10-171-175/+134
| | | | | | | | | | | | This patch modifies the w83781d driver to use new style driver binding. Substantial code modifications are required to deal with the new interface, especially legacy device detection. [JD: largely edited to make the patch smaller and to get the driver to work again on ISA devices.] Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83781d) Stop abusing struct i2c_client for ISA devicesJean Delvare2008-10-171-37/+26
| | | | | | | | | Upcoming changes to the I2C part of the w83781d driver will cause ISA devices to no longer have a struct i2c_client at hand. So, we must stop (ab)using it now. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Wolfgang Grandegger <wg@grandegger.com>
* hwmon: (w83781d) Make ISA interface depend on CONFIG_ISAWolfgang Grandegger2008-10-171-280/+393
| | | | | | | | | | | Probing the ISA bus on systems without ISA bus may hang the system. This patch makes the ISA bus related code depend on the kernel configuration parameter CONFIG_ISA. It moves ISA bus related code into one #ifdef CONFIG_ISA ... #endif block and adds some helper function. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83781d) Detect alias chipsJean Delvare2008-10-171-13/+66
| | | | | | | | | | | | | | | | | The W83781D and W83782D can be accessed either on the I2C bus or the ISA bus. We must not access the same chip through both interfaces. So far we were relying on the user passing the correct ignore parameter to skip the registration of the I2C interface as suggested by sensors-detect, but this is fragile: the user may load the w83781d driver without running sensors-detect, and the i2c bus numbers are not stable across reboots and hardware changes. So, better detect alias chips in the driver directly, and skip any I2C chip which is obviously an alias of the ISA chip. This is done by comparing the value of 26 selected registers. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Wolfgang Grandegger <wg@grandegger.com>
* hwmon: (w83781d) Refactor beep enable handlingJean Delvare2008-10-171-37/+9
| | | | | | | | We can handle the beep enable bit as any other beep mask bit for slightly smaller code. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Wolfgang Grandegger <wg@grandegger.com>
* hwmon: (w83791d) add support for thermal cruise modeMarc Hulsman2008-10-171-0/+148
| | | | | | | | | Add support to set target temperature and tolerance for thermal cruise mode. Signed-off-by: Marc Hulsman <m.hulsman@tudelft.nl> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83791d) add pwm_enable supportMarc Hulsman2008-10-171-0/+79
| | | | | | | | Add support for pwm_enable. Signed-off-by: Marc Hulsman <m.hulsman@tudelft.nl> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83791d) add manual PWM supportMarc Hulsman2008-10-171-1/+66
| | | | | | | | Add PWM manual control. Signed-off-by: Marc Hulsman <m.hulsman@tudelft.nl> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83791d) fan 4/5 pins can also be used for gpioMarc Hulsman2008-10-171-3/+27
| | | | | | | | | Pins fan/pwm 4-5 can be in use as GPIO. If that is the case, do not create their sysfs-interface. Signed-off-by: Marc Hulsman <m.hulsman@tudelft.nl> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (max1619) Use inline functions instead of macrosAndrew Morton2008-10-171-5/+12
| | | | | | Macros evaluating their arguments more than once are evil. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (it87) Fix thermal sensor type valuesJean Delvare2008-10-171-3/+8
| | | | | | | | | | | | | | | The it87 driver doesn't follow the standard sensor type values as documented in Documentation/hwmon/sysfs-interface. It uses value 2 for thermistors instead of value 4. This causes "sensors" to tell the user that the chip is setup for a transistor while it is actually setup for a thermistor. Using value 4 for thermistors solves the problem. For compatibility reasons, we still accept value 2 but emit a warning message so that users update their configuration files. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <hdegoede@redhat.com>
* hwmon: (lm78) Convert to a new-style i2c driverJean Delvare2008-10-171-105/+89
| | | | | | | The new-style lm78 driver implements the optional detect() callback to cover the use cases of the legacy driver. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm78) Stop abusing struct i2c_client for ISA devicesJean Delvare2008-10-171-22/+16
| | | | | | | | Upcoming changes to the I2C part of the lm78 driver will cause ISA devices to no longer have a struct i2c_client at hand. So, we must stop (ab)using it now. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm78) Prevent misdetection of Winbond chipsJean Delvare2008-10-171-0/+6
| | | | | | | | | The LM78 detection is relatively weak, and sometimes recent Winbond chips can be misdetected as an LM78. We have had repeated reports of this happening. We have an explicit check against this for the ISA access, do the same for I2C access now. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm78) Detect alias chipsJean Delvare2008-10-171-13/+65
| | | | | | | | | | | | | | | | The LM78 and LM79 can be accessed either on the I2C bus or the ISA bus. We must not access the same chip through both interfaces. So far we were relying on the user passing the correct ignore parameter to skip the registration of the I2C interface as suggested by sensors-detect, but this is fragile: the user may load the lm78 driver without running sensors-detect, and the i2c bus numbers are not stable across reboots and hardware changes. So, better detect alias chips in the driver directly, and skip any I2C chip which is obviously an alias of the ISA chip. This is done by comparing the value of 26 selected registers. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm78) Fix I/O resource conflict with PNPJean Delvare2008-10-171-5/+15
| | | | | | | | | | | | | | | Only request I/O ports 0x295-0x296 instead of the full I/O address range. This solves a conflict with PNP resources on a few motherboards. Also request the I/O ports in two parts (4 low ports, 4 high ports) during device detection, otherwise the PNP resource make the request (and thus the detection) fail. This is the exact same fix that was applied to driver w83781d in March 2008 to address the same problem: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2961cb22ef02850d90e7a12c28a14d74e327df8d Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm85) Better label namesJean Delvare2008-10-171-6/+6
| | | | | | | | Label names ERROR1 and ERROR3 aren't exactly explicit. Change them for better names that indicate what we are up to. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Herbert Poetzl <herbert@13thfloor.at>
* hwmon: (lm85) Simplify RANGE_TO_REGJean Delvare2008-10-171-11/+4
| | | | | | | | | | Function RANGE_TO_REG can easily be simplified. Credits go to Herbert Poetzl for indirectly suggesting this to me. I tested that the new implementation returns the same result as the original implementation for all input values. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Herbert Poetzl <herbert@13thfloor.at>
* hwmon: (lm85) Convert to a new-style i2c driverJean Delvare2008-10-171-57/+64
| | | | | | | | The new-style lm85 driver implements the optional detect() callback to cover the use cases of the legacy driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Herbert Poetzl <herbert@13thfloor.at>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 20:17:09 +0000