linux-toradex.git/drivers/hwmon/sht15.c, branch PD13.2.2

hwmon: (sht15) fix bad error code

2012-02-03T17:19:02+00:00

commit 6edf3c30af01854c416f8654d3d5d2652470afd4 upstream.

When no platform data was supplied, returned error code was 0.

Signed-off-by: Vivien Didelot 
Signed-off-by: Guenter Roeck 
Signed-off-by: Greg Kroah-Hartman

hwmon: (sht15) add support for CRC validation

2011-05-19T15:19:36+00:00

The sht15 sensor allows validating exchanges to and from the device
using a crc8 function. An utility function to reverse a byte has also
been added.

Signed-off-by: Jerome Oufella 
Acked-by: Jonathan Cameron 
Signed-off-by: Guenter Roeck

hwmon: (sht15) add support for the status register

2011-05-19T15:19:35+00:00

* Add support for:
  - Heater.
  - End of battery notice.
  - Ability not to reload from OTP.
  - Low resolution (12bit temp, 8bit humidity).
* Add an utility function to read individual bytes from the device.

Signed-off-by: Vivien Didelot 
Acked-by: Jonathan Cameron 
Signed-off-by: Guenter Roeck

hwmon: (sht15) clean-up the probe function

2011-05-19T15:19:34+00:00

* Move the creation of sysfs attributes after the end of the
  initialization, and remove them in the error path.
* Release regulator in the error path.
* Add a soft reset command (need to wait 11ms before next command).

Signed-off-by: Vivien Didelot 
Acked-by: Jonathan Cameron 
Signed-off-by: Guenter Roeck

hwmon: (sht15) general code clean-up

2011-05-19T15:19:33+00:00

* Add a documentation file for the device.
* Respect a bit more the kernel-doc syntax.
* Rename some variables for clarity.
* Use bool type for flags.
* Use an enum for states (actions being done).

Signed-off-by: Vivien Didelot 
Acked-by: Jonathan Cameron 
Signed-off-by: Guenter Roeck

Fix common misspellings

2011-03-31T14:26:23+00:00

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi

hwmon: (sht15) Fix integer overflow in humidity calculation

2011-03-21T16:59:35+00:00

An integer overflow occurs in the calculation of RHlinear when the
relative humidity is greater than around 30%. The consequence is a subtle
(but noticeable) error in the resulting humidity measurement.

Signed-off-by: Vivien Didelot 
Signed-off-by: Jean Delvare 
Cc: stable@kernel.org
Cc: Jonathan Cameron

hwmon: (sht15) Spelling fix

2011-03-21T16:59:35+00:00

Remove one too many "n" in a word.

Signed-off-by: Justin P. Mattock 
Acked-by: Jean Delvare

hwmon: (sht15) Properly handle the case CONFIG_REGULATOR=n

2010-04-14T14:14:08+00:00

When CONFIG_REGULATOR isn't set, regulator_get_voltage() returns 0.
Properly handle this case by not trusting the value.

Reported-by: Jerome Oufella 
Signed-off-by: Jean Delvare 
Cc: Jonathan Cameron 
Acked-by: Mark Brown 
Cc: stable@kernel.org

hwmon: (sht15) Fix sht15_calc_temp interpolation function

2010-04-14T14:14:07+00:00

I discovered two issues.
First the previous sht15_calc_temp() loop did not iterate through the
temppoints array since the (data->supply_uV > temppoints[i - 1].vdd)
test is always true in this direction.

Also the two-points linear interpolation function was returning biased
values due to a stray division by 1000 which shouldn't be there.

[JD: Also change the default value for d1 from 0 to something saner.]

Signed-off-by: Jerome Oufella 
Acked-by: Jonathan Cameron 
Signed-off-by: Jean Delvare 
Cc: stable@kernel.org