linux.git/drivers/hwmon, branch v3.8-rc2

hwmon: (emc6w201) Fix DIV_ROUND_CLOSEST problem with unsigned divisors

2012-12-22T10:16:40+00:00

Result of DIV_ROUND_CLOSEST is undefined for negative dividends if the divisor
variable type is unsigned. Fix by declaring divisor as signed variable.

Signed-off-by: Guenter Roeck 
Acked-by: Jean Delvare

hwmon: (lm73} Detect and report i2c bus errors

2012-12-22T01:59:30+00:00

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 
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck

hwmon-vid: Add support for AMD family 11h to 15h processors

2012-12-19T21:17:02+00:00

Since family 11h processors, AMD is exclusively using 7-bit VID codes
transmitted using a serial protocol over two pins (clock and data.)

Signed-off-by: Jean Delvare 
Tested-by: David Hubbard 
Reviewed-by: Guenter Roeck

hwmon: (it87) Support PECI for additional chips

2012-12-19T21:17:02+00:00

Extend support for reporting and selecting PECI temperature sensors
to IT8718, IT8720, IT8782, and IT8783. For IT8721, report the sensor
type for temp2 as Intel PECI (6) if the chip is configured to report
the PCH temperature.

Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare

hwmon: (it87) Report thermal sensor type as Intel PECI if appropriate

2012-12-19T21:17:02+00:00

IT8721 and IT8728 support Intel PECI temperature reporting. Each sensor
can be programmed to display the temperature reported on the PECI interface.

If configured for Intel PECI, the driver reported the wrong sensor type for
the respective thermal sensor. Fix the code to correctly report it as
"Intel PECI (6)".

Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare

hwmon: (it87) Manage device specific features with table

2012-12-19T21:17:02+00:00

This simplifies the code, improves runtime performance, reduces
code size (about 280 bytes on x86_64), and makes it easier
to add support for new devices.

Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare

hwmon: (it87) Replace pwm group macro with direct attribute definitions

2012-12-19T21:17:02+00:00

Fix checkpatch error:

ERROR: Macros with multiple statements should be enclosed in a do - while loop

Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare

hwmon: (it87) Avoid quoted string splits across lines

2012-12-19T21:17:01+00:00

Fix the respective checkpatch warnings.

Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare

hwmon: (it87) Save fan registers in 2-dimensional array

2012-12-19T21:17:01+00:00

Also unify fan functions to use the same code for 8 and 16 bit fans.

This patch reduces code size by approximately 1,200 bytes on x86_64.

Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare

hwmon: (it87) Introduce support for tempX_offset sysfs attribute

2012-12-19T21:17:01+00:00

Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare