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path: root/drivers/hwmon/adt7470.c
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2009-12-14i2c: Drop I2C_CLIENT_INSMOD_1Jean Delvare
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 Delvare
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 Delvare
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 Delvare
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>
2009-01-06adt7470: make automatic fan control really workDarrick J. Wong
It turns out that the adt7470's automatic fan control algorithm only works when the temperature sensors get updated. This in turn happens only when someone tells the chip to read its temperature sensors. Regrettably, this means that we have to drive the chip periodically. Signed-off-by: Darrick J. Wong <djwong@us.ibm.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>
2009-01-06adt7470: observe the number of temperature sensors to shorten update timeDarrick J. Wong
The adt7470 driver currently assumes that 1s is the proper time to wait to read all temperature sensors. However, the correct time is 200ms * number_of_sensors. This patch sets the default time to provide for 10 sensors and then lowers it based on the number of sensor inputs that have nozero values. Signed-off-by: Darrick J. Wong <djwong@us.ibm.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>
2009-01-06adt7470: fix pwm at a certain level during temperature sensor scanDarrick J. Wong
In the small window that it takes to read the temperature sensors, the pwm outputs momentarily drop to 0. This causes a noticeable hiccup in fan speed, which is slightly annoying. The solution is to manually program the pwm output with whatever the automatic value is and then shift the fans to manual control while reading temperatures. Once that is done, put the fans back to whatever mode of control was there before. Signed-off-by: Darrick J. Wong <djwong@us.ibm.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>
2009-01-06adt74{62, 70, 73}: Use DIV_ROUND_CLOSEST for rounded divisionDarrick J. Wong
Modify some hwmon drivers to use DIV_ROUND_CLOSEST instead of bloating source with (naughty) macros. Signed-off-by: Darrick J. Wong <djwong@us.ibm.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>
2008-11-12adt7470: check input range when sysfs files are writtenDarrick J. Wong
Implement correct range checking for adt7470 to prevent userland from writing impossible values into the chip, and cap out-of-range values per standard hwmon conventions. Implement correct rounding of input values per standard hwmon conventions. Signed-off-by: Darrick J. Wong <djwong@us.ibm.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>
2008-07-16hwmon: (adt7470) Convert to a new-style i2c driverJean Delvare
The new-style adt7470 driver implements the optional detect() callback to cover the use cases of the legacy driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Darrick J. Wong <djwong@us.ibm.com>
2008-02-18hwmon: normal_i2c arrays should be constMark M. Hoffman
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-07hwmon: (adt7470) Support per-sensor alarm filesDarrick J. Wong
Remove the old alarms hack and replace it with per-sensor alarm files. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-07hwmon: (adt7470) Replace power-of-two testRobert P. J. Day
Since <linux/log2.h> already supplies a power-of-two test, there's no point in having this source file redefine it again. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Acked-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 Jones
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: add support for adt7470Darrick J. Wong
New driver to expose temperature and fan controls attached to Analog Devices ADT7470 hwmon chips. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
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