linux/drivers/hwmon, branch v3.2.41

hwmon: (pmbus/ltc2978) Fix temperature reporting

2013-03-20T15:03:36Z

commit 8c958c703ef8804093437959221951eaf0e1e664 upstream. On LTC2978, only READ_TEMPERATURE is supported. It reports the internal junction temperature. This register is unpaged. On LTC3880, READ_TEMPERATURE and READ_TEMPERATURE2 are supported. READ_TEMPERATURE is paged and reports external temperatures. READ_TEMPERATURE2 is unpaged and reports the internal junction temperature. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Ben Hutchings

hwmon: (lineage-pem) Add missing terminating entry for pem_[input|fan]_attributes

2013-03-20T15:03:36Z

commit df069079c153d22adf6c28dcc0b1cf62bba75167 upstream. Signed-off-by: Axel Lin Acked-by: Jean Delvare Signed-off-by: Guenter Roeck Signed-off-by: Ben Hutchings

hwmon: (sht15) Check return value of regulator_enable()

2013-03-20T15:03:22Z

commit 3e78080f81481aa8340374d5a37ae033c1cf4272 upstream. Not having power is a pretty serious error so check that we are able to enable the supply and error out if we can't. Signed-off-by: Mark Brown Signed-off-by: Guenter Roeck [bwh: Backported to 3.2: driver does not use the devm API to manage memory, so goto err_free_data rather than returning on error] Signed-off-by: Ben Hutchings

hwmon: (pmbus/ltc2978) Use detected chip ID to select supported functionality

2013-03-20T15:03:22Z

commit f366fccd0809f13ba20d64cae3c83f7338c88af7 upstream. We read the chip ID from the chip, use it to determine if the chip ID provided to the driver is correct, and report it if wrong. We should also use the correct chip ID to select supported functionality. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Ben Hutchings

hwmon: (pmbus/ltc2978) Fix peak attribute handling

2013-03-20T15:03:22Z

commit dbd712c2272764a536e29ad6841dba74989a39d9 upstream. Peak attributes were not initialized and cleared correctly. Also, temp2_max is only supported on page 0 and thus does not need to be an array. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings

hwmon: (lm73} Detect and report i2c bus errors

2013-01-16T01:13:12Z

commit 0602934f302e016e2ea5dc6951681bfac77455ef upstream. If an LM73 device does not exist on an I2C bus, attempts to communicate with the device result in an error code returned from the i2c read/write functions. The current lm73 driver casts that return value from a s32 type to a s16 type, then converts it to a temperature in celsius. Because negative temperatures are valid, it is difficult to distinguish between an error code printed to the response buffer and a negative temperature recorded by the sensor. The solution is to evaluate the return value from the i2c functions before performing any temperature calculations. If the i2c function did not succeed, the error code should be passed back through the virtual file system layer instead of being printed into the response buffer. Before: $ cat /sys/class/hwmon/hwmon0/device/temp1_input -46 After: $ cat /sys/class/hwmon/hwmon0/device/temp1_input cat: read error: No such device or address Signed-off-by: Chris Verges Signed-off-by: Guenter Roeck Signed-off-by: Ben Hutchings

x86,AMD: Power driver support for AMD's family 16h processors

2013-01-03T03:33:28Z

commit 22e32f4f57778ebc6e17812fa3008361c05d64f9 upstream. Add family 16h PCI ID to AMD's power driver to allow it report power consumption on these processors. Signed-off-by: Boris Ostrovsky Signed-off-by: Guenter Roeck Signed-off-by: Ben Hutchings

hwmon: (coretemp) Add support for Atom CE4110/4150/4170

2013-01-03T03:32:48Z

commit 1102dcab849313bd5a340b299b5cf61b518fbc0f upstream. TjMax for the CE4100 series of Atom CPUs was previously reported to be 110 degrees C. cpuinfo logs on the web show existing CPU types CE4110, CE4150, and CE4170, reported as "model name : Intel(R) Atom(TM) CPU CE41{1|5|7}0 @ 1.{2|6}0GHz" with model 28 (0x1c) and stepping 10 (0x0a). Add the three known variants to the tjmax table. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Ben Hutchings

hwmon: (coretemp) Improve support for TjMax detection on Atom CPUs

2013-01-03T03:32:48Z

commit 41e58a1f2b90c88d94b4bd84beb9927a4c2704e9 upstream. Atom CPUs don't have a register to retrieve TjMax. Detection so far was incomplete. Use the X86 model ID to improve it. Signed-off-by: Guenter Roeck Signed-off-by: Jean Delvare [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings

hwmon: (coretemp) Add support for Atom D2000 and N2000 series CPU models

2013-01-03T03:32:47Z

commit 5592906f8b01282ea3c2acaf641fd067ad4bb3dc upstream. Document the Atom series D2000 and N2000 (Cedar Trail) as being supported. List and set TjMax for those series. Cc: Fenghua Yu Cc: "R, Durgadoss" Signed-off-by: Guenter Roeck Signed-off-by: Jean Delvare Signed-off-by: Ben Hutchings