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path: root/drivers/hwmon/lm78.c
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2008-10-17hwmon: (lm78) Convert to a new-style i2c driverJean Delvare1-105/+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>
2008-10-17hwmon: (lm78) Stop abusing struct i2c_client for ISA devicesJean Delvare1-22/+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>
2008-10-17hwmon: (lm78) Prevent misdetection of Winbond chipsJean Delvare1-0/+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>
2008-10-17hwmon: (lm78) Detect alias chipsJean Delvare1-13/+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>
2008-10-17hwmon: (lm78) Fix I/O resource conflict with PNPJean Delvare1-5/+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>
2008-02-19hwmon: normal_i2c arrays should be constMark M. Hoffman1-2/+2
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-02-08hwmon: 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>
2008-02-08hwmon: (lm78/w83781d) Probe fewer I2C addressesJean Delvare1-4/+2
We've never seen any device supported by the lm78 or w83781d driver at addresses 0x20-0x27, so let's stop probing these addresses. Extra probes cost time, and have potential for confusing or misdetecting other I2C devices. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-10-10hwmon: (lm78) Add individual alarm filesJean Delvare1-0/+30
Add individual alarm files to the lm78 driver, these are needed by the next version of libsensors. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-10-10hwmon: Convert from class_device to deviceTony Jones1-9/+9
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>
2007-09-09hwmon: End of I/O region off-by-oneJean Delvare1-1/+1
Fix an off-by-one error in the I/O region declaration of two hardware monitoring drivers (lm78 and w83781d.) We were requesting one extra port at the end of the region. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-07-31hwmon: fix lm78 detection regressionHans de Goede1-1/+1
Here is a small but important bugfix to the lm78 driver. I found out about this problem because a Fedora user filed a bug that the lm78 driver no longer worked on his system: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=249428 The problem is that sometime ago the isa lm78 detection was made more stringent and this new code now checks the chip-id, but does not accept a chip-id of 20h, however a chip-id of 20h is valid, and is excepted in the main probe function of the driver, see line 551. This fixed also makes the isa detection code accept the chip-id of 0x20 fixing this issue. Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2007-05-08hwmon/lm78: Use dynamic sysfs callbacksJean Delvare1-124/+101
This lets us get rid of macro-generated functions and shrinks the driver size significantly (about 10%). Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-08hwmon/lm78: Be less i2c_client-centricJean Delvare1-46/+40
Use the driver data structure as the main device reference, instead of the i2c client. It makes the driver a bit smaller, and makes more sense as this is an hybrid driver, supporting both I2C and ISA devices. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-08hwmon/lm78: No longer use i2c-isaJean Delvare1-110/+267
Reimplement the ISA device support as a platform driver, so that we no longer rely on i2c-isa. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-02-14hwmon: Cleanup a bogus legacy commentJean Delvare1-4/+2
Cleanup a bogus legacy comment that has been replicated to many hardware monitoring drivers. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2006-10-19hwmon: Let w83781d and lm78 load againJean Delvare1-6/+6
Let the w83781d and lm78 hardware monitoring drivers load even when no chip was detected at the ISA address. There can still be supported chips connected to an I2C bus or SMBus. This fixes bug #7293. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-29hwmon: Fix unchecked return status, batch 1Mark M. Hoffman1-37/+51
hwmon: Fix unchecked return status, batch 1 Fix up some hwmon drivers so that they no longer ignore return status from device_create_file(). 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>
2006-09-27i2c-isa: Restore driver ownerJean Delvare1-0/+1
i2c-isa: Restore driver owner Commit 2b48716d1d2f2edb1e7cbc5ecf1cb2cb39373e33 back in January 2006 was a bit overzealous. It removed .owner from all i2c drivers, including i2c-isa ones, while they still need it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26spelling fixesAndreas Mohr1-1/+1
acquired (aquired) contiguous (contigious) successful (succesful, succesfull) surprise (suprise) whether (weather) some other misspellings Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-24[PATCH] I2C: hwmon: Rename register parametersDarren Jenkins1-2/+2
"register" is a reserved keyword so using it as a parameter name can confuse some compilers, most notably ICC. The patch below just renames all occurences to reg which fits the actual function declarations. Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-24[PATCH] hwmon: Semaphore to mutex conversionsIngo Molnar1-23/+24
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>
2006-01-06[PATCH] I2C: Remove .owner setting from i2c_driver as it's no longer neededGreg Kroah-Hartman1-2/+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>
2006-01-06[PATCH] i2c: Drop i2c_driver.{owner,name}, 3 of 11Laurent Riffard1-5/+9
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>
2006-01-06[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>
2005-11-24[PATCH] hwmon: Fix lm78 VID conversionJean Delvare1-1/+1
Fix the lm78 VID reading, which I accidentally broke while making this driver use the common vid_from_reg function rather than reimplementing its own in 2.6.14-rc1. I'm not proud of it, trust me. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-29[PATCH] hwmon: Static function fixes, 2 of 4Ben Dooks1-1/+1
lm78.c and lm85.c have a number of items declared static then implemented without the static on them. The following patch fixes these sparse errors. 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>
2005-10-29[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>
2005-10-29[PATCH] hwmon: Discard bogus comment about init setting limitsJean Delvare1-1/+0
Discard a common out-of-date comment in 5 hardware monitoring drivers. The hardware monitoring chip drivers are no more setting sensor limits at initialization time, for quite some time already. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/hwmon/lm78.c | 1 - drivers/hwmon/via686a.c | 1 - drivers/hwmon/w83627hf.c | 1 - drivers/hwmon/w83781d.c | 1 - drivers/hwmon/w83792d.c | 1 - 5 files changed, 5 deletions(-)
2005-09-05[PATCH] hwmon: hwmon vs i2c, second round (11/11)Jean Delvare1-8/+2
Use the common vid_from_reg function in lm78 rather than reimplementing it. 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: Separate non-i2c hwmon drivers from i2c-core (5/9)Jean Delvare1-2/+9
Call the ISA chip drivers detection function directly instead of relying on i2c_detect. The net effect is that address lists won't be handled anymore, but they were mostly useless in the ISA case anyway (pc87360, smsc47m1, smsc47b397 had already dropped them). We don't need to handle multiple devices, all we may need is a way to force a given address instead of the original one (some drivers already do: sis5595, via686a, w83627hf), and, for drivers supporting multiple chips, a way to force one given kind. All this may be added later on demand, but I actually don't think there will be much demand. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (3/9)Jean Delvare1-3/+26
Convert the 10 ISA hardware monitoring drivers (it87, lm78, pc87360, sis5595, smsc47b397, smsc47m1, via686a, w83627hf, w83627ehf, w83781d) to explicitely register with i2c-isa. For hybrid drivers (it87, lm78, w83781d), we now have two separate instances of i2c_driver, one for the I2C interface of the chip, and one for ISA interface. In the long run, the one for ISA will be replaced with a different driver type. At this point, all drivers are working again, except for missing dependencies in Kconfig. 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>
2005-09-05[PATCH] hwmon: kill client name lm78-jJean Delvare1-7/+4
Drop the separate client name for the LM78-J chip. This is really only a later revision of the LM78, with almost no difference and no difference the driver handles in any case. This was the only client name that had a dash in it, and special care had to be taken in libsensors because of it. As we plan to write a new library soon, I'd like to get rid of this exception before we do. As a nice side effect, it saves 876 bytes in lm78.ko. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-12[PATCH] I2C: Move hwmon drivers (2/3)Jean Delvare1-0/+795
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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