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* hwmon: (lm70) Add TI TMP121 supportManuel Lauss2009-01-071-10/+74
| | | | | | | | | | The Texas Instruments TMP121 is a SPI temperature sensor very similar to the LM70, with slightly higher resolution. This patch extends the LM70 driver to support the TMP121. The TMP123 differs in pin assign- ment. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm70) Code streamlining and cleanupKaiwan N Billimoria2009-01-071-4/+5
| | | | | | | | | | | | | | This fixes a byteswap bug in the LM70 temperature sensor driver, which was previously covered up by a converse bug in the driver for the LM70EVAL-LLP board (which is also fixed). Other fixes: doc updates, remove an annoying msleep(), and improve three-wire protocol handling. Signed-off-by: Kaiwan N Billimoria <kaiwan@designergraphix.com> [ dbrownell@users.sourceforge.net: doc and whitespace tweaks ] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm70) Convert semaphore to mutexMatthias Kaehlcke2007-11-081-5/+6
| | | | | | Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
* hwmon: Convert from class_device to deviceTony Jones2007-10-091-6/+6
| | | | | | | | | 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>
* hwmon: (lm70) Add a name attributeJean Delvare2007-10-091-2/+13
| | | | | | | | | | | | | | Add a name attribute to the lm70 devices. This is required for libsensors to recognize them. Also drop the "+" before the temperature value, even though it did not cause problems to libsensors, other hardware monitoring drivers don't print it, so it's more consistent that way. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl> Acked-by: Kaiwan <kaiwan@designergraphix.com> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
* SPI: add 3wire mode flagDavid Brownell2007-07-171-0/+4
| | | | | | | | | | Add a new spi->mode bit: SPI_3WIRE, for chips where the SI and SO signals are shared (and which are thus only half duplex). Update the LM70 driver to require support for that hardware mode from the controller. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hwmon/lm70: Make lm70_remove a __devexit functionRalf Baechle2007-02-141-1/+1
| | | | | | | This fixes a potential broken reference. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* [PATCH] lm70: New hardware monitoring driverKaiwan N Billimoria2006-06-221-0/+165
This driver implements support for the National Semiconductor LM70 temperature sensor. The LM70 temperature sensor chip supports a single temperature sensor. It communicates with a host processor (or microcontroller) via an SPI/Microwire Bus interface. Communication with the LM70 is simple: when the temperature is to be sensed, the driver accesses the LM70 using SPI communication: 16 SCLK cycles comprise the MOSI/MISO loop. At the end of the transfer, the 11-bit 2's complement digital temperature (sent via the SIO line), is available in the driver for interpretation. This driver makes use of the kernel's in-core SPI support. Signed-off-by: Kaiwan N Billimoria <kaiwan@designergraphix.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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