linux-stable.git/drivers/iio/common, branch v4.0.2

iio: common: ssp_sensors: Protect PM-only functions to kill warning

2015-02-22T09:46:55+00:00

If CONFIG_PM_SLEEP=n:

    drivers/iio/common/ssp_sensors/ssp_dev.c:644: warning: ‘ssp_suspend’ defined but not used
    drivers/iio/common/ssp_sensors/ssp_dev.c:669: warning: ‘ssp_resume’ defined but not used

Protect the unused functions by #ifdef CONFIG_PM_SLEEP to fix this.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Karol Wrona 
Signed-off-by: Jonathan Cameron

iio:common:ssp_sensors fix warnings due to 32 bit instead of 64 bit passed to do_div

2015-01-31T09:41:14+00:00

Also change to div64_u64 in one place to avoid loss of precision
(was dividing a 32 bit number by a 64 bit number, but casting this
to 64 bit divided by 32 bit)  Those divide functions certainly have
esoteric naming!

Fixes warnings with asm-generic/div64.h do_div such as:
   In file included from drivers/iio/common/ssp_sensors/ssp_iio.c:20:0:
   drivers/iio/common/ssp_sensors/ssp_iio_sensor.h: In function 'ssp_convert_to_freq':
>> drivers/iio/common/ssp_sensors/ssp_iio_sensor.h:56:16: warning: comparison of distinct pointer types lacks a cast [enabled by default]
   drivers/iio/common/ssp_sensors/ssp_iio_sensor.h:56:2: warning: right shift count >= width of type [enabled by default]
>> drivers/iio/common/ssp_sensors/ssp_iio_sensor.h:56:2: warning: passing argument 1 of '__div64_32' from incompatible pointer type [enabled by default]
   include/asm-generic/div64.h:35:17: note: expected 'uint64_t *' but argument is of type 'int *'
   drivers/iio/common/ssp_sensors/ssp_iio.c: In function 'ssp_common_process_data':
   include/linux/iio/buffer.h:142:32: warning: 'calculated_time' may be used uninitialized in this function [-Wuninitialized]
   drivers/iio/common/ssp_sensors/ssp_iio.c:83:10: note: 'calculated_time' was declared here

Fixed by using straight coded version as per the description in the
div64.h header, thus ensuring no issue with 32 bit integers.

Reported-by: kbuild test robot 
Signed-off-by: Jonathan Cameron

iio: common: ssp_sensors: Add sensorhub iio commons

2015-01-29T18:49:53+00:00

This patch adds common library for sensorhub iio drivers.

Signed-off-by: Karol Wrona 
Acked-by: Kyungmin Park 
Signed-off-by: Jonathan Cameron

iio: common: ssp_sensors: Add sensorhub driver

2015-01-29T18:49:05+00:00

Sensorhub  is MCU dedicated to collect data and manage several sensors.
Sensorhub is a spi device which provides a layer for IIO devices. It provides
some data parsing and common mechanism for sensorhub sensors.

Adds common sensorhub library for sensorhub driver and iio drivers
which uses sensorhub MCU to communicate with sensors.

Signed-off-by: Karol Wrona 
Acked-by: Kyungmin Park 
Signed-off-by: Jonathan Cameron

iio: hid_sensor_hub: Common PM functions

2015-01-25T22:55:39+00:00

To improvement power and performance, both regular and run time callbacks
are introduced. Because of auto suspend delay, two consecutive read
don't have to go through full power on/off procedure. The auto suspend
time can be adjusted using regular power attributes of PM sysfs.

Signed-off-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron

iio: common: remove unnecessary sizeof(u8)

2014-12-12T12:28:25+00:00

sizeof(u8) is always 1.

Signed-off-by: Fabian Frederick 
Acked-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

Merge tag 'iio-for-3.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

2014-11-05T19:42:48+00:00

Jonathan writes:

First round of new drivers, features and cleanups for IIO in the 3.19 cycle.

New drivers / supported parts
* rockchip - rk3066-tsadc variant
* si7020 humidity and temperature sensor
* mcp320x - add mcp3001, mcp3002, mcp3004, mcp3008, mcp3201, mcp3202
* bmp280 pressure and temperature sensor
* Qualcomm SPMI PMIC current ADC driver
* Exynos_adc - support exynos7

New features
* vf610-adc - add temperature sensor support
* Documentation of current attributes, scaled pressure, offset and
  scaled humidity, RGBC intensity gain factor and scale applied to
  differential voltage channels.
* Bring iio_event_monitor up to date with newer modifiers.
* Add of_xlate function to allow for complex channel mappings from the
  device tree.
* Add -g parameter to generic_buffer example to allow for devices with
  directly fed (no trigger) buffers.
* Move exynos driver over to syscon for PMU register access.

Cleanups, fixes for new drivers
* lis3l02dq drop an unneeded else.
* st sensors - renam st_sensors to st_sensor_settings (for clarity)
* st sensors - drop an unused parameter from all the probe utility
  functions.
* vf610 better error handling and tidy up.
* si7020 - cleanups following merge
* as3935 - drop some unnecessary semicolons.
* bmp280 - fix the pressure calculation.

Merge tag 'iio-fixes-for-3.18a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

2014-10-25T02:09:39+00:00

Jonathan writes:

First round of IIO fixes for the 3.18 cycle.

* ad5933 - fix a null pointer dereference due to an old change that prevents
  different channels being registered for the buffer and used for sysfs
  interfaces.
* ad5933 - Drop a bonus _raw from attribute names.
* st-sensors - Makes sure the correct number of elements are copied when
  filling a local buffer copy.
* mxs-lradc - Disable clocks in a failure path during probe so they aren't
  left running.

iio: st_sensors: Fix buffer copy

2014-10-04T11:10:57+00:00

Use byte_for_channel as iterator to properly initialize the buffer.

Signed-off-by: Robin van der Gracht 
Acked-by: Denis Ciocca 
Signed-off-by: Jonathan Cameron 
Cc:

iio:common: Set the device pointer into ST common sensors library

2014-10-04T10:26:21+00:00

Signed-off-by: Denis Ciocca 
Signed-off-by: Jonathan Cameron