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path: root/drivers/hwmon/ds1621.c
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2013-06-28hwmon: (ds1621) Fix temperature rounding operationsGuenter Roeck1-9/+12
Commit "hwmon: (ds1621) Add ds1721 chip support" broke rounding for chips or configurations with less than 12 bit resolution. Tested-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27hwmon: (ds1621) Add DS1731 chip support to ds1621 driverRobert Coulson1-5/+7
These changes add DS1731 chip support to the ds1621 driver, Kconfig, and documentation. Signed-off-by: Robert Coulson <rob.coulson@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27hwmon: (ds1621) Remove detect functionRobert Coulson1-48/+0
Due to a lack of device and vendor identification registers, the Dallas/Maxim DS16xx devices cannot be uniquely detected, sometimes resulting in false positives. Therefore, the detect function is being removed in favor of explicit device instantiation. Signed-off-by: Robert Coulson <rob.coulson@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27hwmon: (ds1621) Add ds1631 chip support to ds1621 driver and documentationRobert Coulson1-7/+20
Add definitions, information, and code for ds1631 chip support to the ds1621 driver. Signed-off-by: Robert Coulson <rob.coulson@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27hwmon: (ds1621) Add ds1721 update interval sysfs attributeRobert Coulson1-0/+56
The ds1721 device can be configured for 9..12 bit resolutions; add a sysfs attribute for userspace to configure this attribute. The definition, description, details, and usage are shown in the documentation and were crafted from an LM73 driver patch done by Chris Verges & Guenter Roeck). Signed-off-by: Robert Coulson <rob.coulson@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-06-27hwmon: (ds1621) Add ds1721 chip supportRobert Coulson1-14/+106
Update the ds1621 documentation, driver, and Kconfig with ds1721 chip support. Signed-off-by: Robert Coulson <rob.coulson@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-07-21hwmon: (ds1621) Convert to use devm_ functionsGuenter Roeck1-11/+5
Convert to use devm_ functions to reduce code size and simplify the code. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
2012-03-18hwmon: (ds1621) Fix checkpatch issuesGuenter Roeck1-35/+44
Fixed: ERROR: code indent should use tabs where possible ERROR: do not use assignment in if condition ERROR: trailing whitespace WARNING: labels should not be indented WARNING: please, no spaces at the start of a line WARNING: simple_strtol is obsolete, use kstrtol instead Also modified multi-line comments to follow Documentation/CodingStyle. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
2012-03-18hwmon: convert drivers/hwmon/* to use module_i2c_driver()Axel Lin1-13/+1
This patch converts the drivers in drivers/hwmon/* to use the module_i2c_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Corentin Labbe <corentin.labbe@geomatys.fr> Cc: Dirk Eibach <eibach@gdsys.de> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Steve Glendinning <steve.glendinning@smsc.com> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Guillaume Ligneul <guillaume.ligneul@gmail.com> Cc: David George <david.george@ska.ac.za> Cc: "Hans J. Koch" <hjk@hansjkoch.de> Cc: Marc Hulsman <m.hulsman@tudelft.nl> Cc: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-11-04hwmon: Use i2c_smbus_{read,write}_word_swappedJean Delvare1-21/+3
Make use of the new i2c_smbus_{read,write}_word_swapped functions. This makes the driver code more compact and readable. It also ensures proper error handling. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Dirk Eibach <eibach@gdsys.de> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Guillaume Ligneul <guillaume.ligneul@gmail.com>
2009-12-14i2c: Drop I2C_CLIENT_INSMOD_1Jean Delvare1-3/+2
This macro simply declares an enum, so drivers might as well declare it themselves. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
2009-12-14i2c: Get rid of struct i2c_client_address_dataJean Delvare1-1/+1
Struct i2c_client_address_data only contains one field at this point, which makes its usefulness questionable. Get rid of it and pass simple address lists around instead. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
2009-12-14i2c: Drop the kind parameter from detect callbacksJean Delvare1-1/+1
The "kind" parameter always has value -1, and nobody is using it any longer, so we can remove it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
2009-12-09hwmon: Clean up detect functionsJean Delvare1-13/+9
As kind is now hard-coded to -1, there is room for code clean-ups. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Corentin Labbe <corentin.labbe@geomatys.fr> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Juerg Haefliger <juergh@gmail.com> Cc: Riku Voipio <riku.voipio@iki.fi> Acked-by: "Hans J. Koch" <hjk@linutronix.de> Cc: Rudolf Marek <r.marek@assembler.cz>
2009-03-30hwmon: (ds1621) Avoid unneeded register accessJean Delvare1-6/+9
Register access over SMBus isn't cheap, so avoid register access where possible: * Only write back the configuration register if it changed. * Don't refresh the register cache when we don't have to. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Aurelien Jarno <aurelien@aurel32.net>
2009-03-30hwmon: (ds1621) Clean up register accessJean Delvare1-24/+24
Fix a few oddities in how the ds1621 driver accesses the registers: * We don't need a wrapper to access the configuration register. * Check for error before calling swab16. Error checking isn't complete yet, but that's a start. * Device-specific read functions should never be called during detection, as by definition we don't know what device we are talking to at that point. * Likewise, don't assume that register reads succeed during detection. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Aurelien Jarno <aurelien@aurel32.net>
2009-03-30hwmon: (ds1621) Reorder code statementsJean Delvare1-66/+57
Reorder the ds1621 driver code so that we can get rid of forward function declarations. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Aurelien Jarno <aurelien@aurel32.net>
2008-07-16hwmon: (ds1621) Convert to a new-style i2c driverJean Delvare1-52/+47
The new-style ds1621 driver implements the optional detect() callback to cover the use cases of the legacy driver. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-02-18hwmon: normal_i2c arrays should be constMark M. Hoffman1-1/+1
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-07hwmon: Discard useless I2C driver IDsJean Delvare1-1/+0
Many I2C hwmon drivers define a driver ID but no other code references these, meaning that they are useless. Discard them, along with a few IDs which are defined but never used at all. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-10-09hwmon: Convert from class_device to deviceTony Jones1-5/+5
Convert from class_device to device for hwmon_device_register/unregister Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-10-09hwmon: Allow writing of negative trigger temperaturesChristian Hohnstaedt1-1/+1
- replace differing temperature variable types by long - use strtol() instead of strtoul() for conversion Signed-off-by: Christian Hohnstaedt <chohnstaedt@innominate.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-07-19hwmon/ds1621: Create individual alarm filesJean Delvare1-0/+14
Future versions of libsensors will need this. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Aurelien Jarno <aurelien@aurel32.net>
2007-07-19hwmon/ds1621: Use dynamic sysfs callbacksJean Delvare1-54/+48
This lets us get rid of macro-generated functions and shrinks the driver size by about 8%. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Aurelien Jarno <aurelien@aurel32.net>
2007-07-19hwmon/ds1621: Minor cleanupsJean Delvare1-32/+19
* Discard comments which do not apply or are redundant. * Remove a few useless instructions. * Rename new_client to just client. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Aurelien Jarno <aurelien@aurel32.net>
2007-05-27hwmon/ds1621: Fix swapped temperature limitsJean Delvare1-4/+4
The low temperature limit and the high temperature limit registers have been accidentally swapped, causing alarms to trigger when they shouldn't. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Aurelien Jarno <aurelien@aurel32.net>
2006-09-28hwmon: Fix unchecked return status, batch 6Jean Delvare1-8/+20
hwmon: Fix unchecked return status, batch 6 Fix up 5 more hwmon drivers so that they no longer ignore return status from device_create_file(). Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] hwmon: Semaphore to mutex conversionsIngo Molnar1-6/+7
convert drivers/hwmon/*.c semaphore use to mutexes. the conversion was generated via scripts, and the result was validated automatically via a script as well. all affected hwmon drivers were build-tested. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-05[PATCH] I2C: Remove .owner setting from i2c_driver as it's no longer neededGreg Kroah-Hartman1-1/+0
Now that i2c_add_driver() doesn't need the module owner to be set by hand, we can delete it from the drivers. This patch catches all of the drivers that I found in the current tree (if a driver sets the .owner by hand, it's not a problem, just not needed.) Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Cc: Jean Delvare <khali@linux-fr.org>
2006-01-05[PATCH] i2c: Drop i2c_driver.{owner,name}, 3 of 11Laurent Riffard1-2/+4
We should use the i2c_driver.driver's .name and .owner fields instead of the i2c_driver's ones. This patch updates the hwmon drivers. Signed-off-by: Laurent Riffard <laurent.riffard@free.fr> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-05[PATCH] i2c: Drop i2c_driver.flags, 2 of 3Jean Delvare1-1/+0
Just about every i2c chip driver sets the I2C_DF_NOTIFY flag, so we can simply make it the default and drop the flag. If any driver really doesn't want to be notified when i2c adapters are added, that driver can simply omit to set .attach_adapter. This approach is also more robust as it prevents accidental NULL pointer dereferences. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] hwmon: Static function fixes, 3 of 4Ben Dooks1-2/+2
Fixup functions that have been declared static and then actually defined without the static on. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] hwmon: kzalloc conversionDeepak Saxena1-2/+1
Use kzalloc instead of kmalloc+memset in all hardware monitoring drivers. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] hwmon: Missing class check in two hwmon driversJean Delvare1-0/+2
The atxp1 and ds1621 drivers should make sure they do not probe non-hwmon i2c adapters. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05[PATCH] hwmon: hwmon vs i2c, second round (06/11)Jean Delvare1-2/+1
The only thing left in i2c-sensor.h are module parameter definition macros. It's only an extension of what i2c.h offers, and this extension is not sensors-specific. As a matter of fact, a few non-sensors drivers use them. So we better merge them in i2c.h, and get rid of i2c-sensor.h altogether. Signed-off-by: Jean Delvare <khali@linux-fr> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05[PATCH] hwmon: hwmon vs i2c, second round (04/11)Jean Delvare1-2/+2
i2c_probe and i2c_detect now do the exact same thing and operate on the same data structure, so we can have everyone call i2c_probe. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05[PATCH] I2C: refactor message in i2c_detach_clientJean Delvare1-4/+1
We could refactor the error message 34 different i2c drivers print if i2c_detach_client() fails in this function itself. Saves quite a few lines of code. Documentation is updated to reflect that change. Note that this patch should be applied after Rudolf Marek's w83792d patches. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (7/9)Jean Delvare1-1/+0
Kill normal_isa in header files, documentation and all chip drivers, as it is no more used. normal_i2c could be renamed to normal, but I decided not to do so at the moment, so as to limit the number of changes. This might be done later as part of the i2c_probe/i2c_detect merge. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05[PATCH] I2C hwmon: add hwmon sysfs class to driversMark M. Hoffman1-1/+15
This patch modifies sensors chip drivers to make use of the new sysfs class "hwmon". Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-11[PATCH] I2C: Move hwmon drivers (2/3)Jean Delvare1-0/+341
Part 2: Move the driver files themselves. Note that the patch "adds trailing whitespace", because it does move the files as-is, and some files happen to have trailing whitespace. From: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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