linux-toradex.git/drivers/iio/inkern.c, branch v3.11

iio: inkern: fix iio_convert_raw_to_processed_unlocked

2013-07-03T19:30:52+00:00

When reading IIO_CHAN_INFO_OFFSET, the return value of iio_channel_read() for
success will be IIO_VAL*, checking for 0 is not correct.

Without this fix the offset applied by iio drivers will be ignored when
converting a raw value to one in appropriate base units (e.g mV) in
a IIO client drivers that use iio_convert_raw_to_processed including
iio-hwmon.

Cc:  # 3.10.x
Signed-off-by: Alexandre Belloni 
Signed-off-by: Jonathan Cameron

iio:inkern: Fix typo/bug in convert raw to processed.

2013-06-04T17:46:45+00:00

Signed-off-by: Michael Hennerich 
Signed-off-by: Jonathan Cameron

inkern: iio_device_put after incorrect return/goto

2013-06-04T17:28:21+00:00

The code uses

    return foo;
    goto err_type;

when instead the form should have been

    ret = foo;
    goto err_type;

Here this causes a useful iio_device_put to be skipped.

Signed-off-by: Joe Perches 
Signed-off-by: Jonathan Cameron

iio: Add OF support

2013-03-16T10:17:59+00:00

Provide bindings and parse OF data during initialization.

Signed-off-by: Guenter Roeck 
Reviewed-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: Update iio_channel_get API to use consumer device pointer as argument

2013-02-06T19:23:52+00:00

For iio_channel_get to work with OF based configurations, it needs the
consumer device pointer instead of the consumer device name as argument.

Signed-off-by: Guenter Roeck 
Acked-by: Anton Vorontsov 
Acked-by: Chanwoo Choi 
Signed-off-by: Jonathan Cameron

iio: Simplify iio_map_array_unregister API

2013-02-02T12:02:20+00:00

Instead of requiring the map to unregister, simply unregister all map entries
associated with the given iio device. This simplifies map removal and also works
for maps generated through devicetree.

Signed-off-by: Guenter Roeck 
Signed-off-by: Jonathan Cameron

iio: Update iio_channel_get_all and iio_channel_get_all_cb API

2013-02-02T11:58:46+00:00

Pass device pointer instead of device name as parameter to iio_channel_get_all
and iio_channel_get_all_cb. This will enable us to use OF information to
retrieve consumer channel information.

Signed-off-by: Guenter Roeck 
Signed-off-by: Jonathan Cameron

staging:iio:in kernel users: Add a data field for channel specific info.

2012-11-10T10:17:27+00:00

Used to allow information about a given channel mapping to be passed
through from board files to the consumer drivers.

Signed-off-by: Jonathan Cameron

iio: Add a logarithmic fractional value type

2012-10-19T17:46:51+00:00

For ADCs or DACs the denominator for fractional types often is a power of two.
In this case we can use a shift operation instead of the rather expensive 64 bit
division. This patch adds a new fractional type which expects the denominator to
be specified as the log2 of the actual denominator. E.g. for ADCs and DACs this
will usually be the number of significant bits.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: Don't compare boolean values to true/false

2012-10-19T15:26:24+00:00

Fixes the following warnings from coccicheck:
	drivers/iio/inkern.c:81:6-14: WARNING: Comparison to bool
	drivers/iio/dac/ad5686.c:191:5-11: WARNING: Comparison to bool

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron