kernel.git/drivers/hwmon/pmbus, branch linux-3.2.y

hwmon: (pmbus) Use 64bit math for DIRECT format values

2018-03-03T15:50:39Z

commit bd467e4eababe4c04272c1e646f066db02734c79 upstream. Power values in the 100s of watt range can easily blow past 32bit math limits when processing everything in microwatts. Use 64bit math instead to avoid these issues on common 32bit ARM BMC platforms. Fixes: 442aba78728e ("hwmon: PMBus device driver") Signed-off-by: Robert Lippert Signed-off-by: Guenter Roeck [bwh: Backported to 3.2: use integer literals instead of S16_{MIN,MAX}] Signed-off-by: Ben Hutchings

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: (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: (zl6100) Enable interval between chip accesses for all chips

2012-03-19T16:02:36Z

commit fecfb64422d91a9621a3f96ab75c3a5f13e80b58 upstream. Intersil reports that all chips supported by the zl6100 driver require an interval between chip accesses, even ZL2004 and ZL6105 which were thought to be safe. Reported-by: Vivek Gani Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman

hwmon: (zl6100) Maintain delay parameter in driver instance data

2012-03-12T19:31:40Z

commit 7ad6307ad6968ce25cecf209d4822d4c722be030 upstream. A global delay parameter has the side effect of being overwritten with 0 if a single ZL2004 or ZL6105 is instantiated. If other chips supported by the same driver are in the system, this will result in access errors for those chips. To solve the problem, keep a per-instance copy of the delay parameter, and do not change the original parameter. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman

hwmon: (pmbus_core) Fix maximum number of POUT alarm attributes

2012-03-12T19:31:40Z

commit 7cb3c44fb1f7999e4c53b6a52de6bc25da6de079 upstream. There are up to three POUT alarm attributes, not two, since cap_alarm was added. Reported-by: Michele Petracca Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman

hwmon: (pmbus_core) Simplify sign extensions

2011-10-24T18:09:44Z

Shift operations can be used for sign extensions. Use it. Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson

hwmon: (pmbus) Add support for Lineage Power DC-DC converters

2011-10-24T18:09:44Z

Add device IDs and reference to datasheets for Lineage Power DC-DC converters. Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson

hwmon: (pmbus/ltc2978) Add support for LTC3880 to LTC2978 driver

2011-10-24T18:09:43Z

The LTC3880 PMBus command set is comparable to LTC2978. Add support for it to the LTC2978 driver. Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson