Now all magnetomers are using iio_chan_spec there is no need for
the macros in magnet.h
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
iio_chan_spec conversion is straight forward.
Other changes:
* use i2c_smbus_write_byte_data in write_data
* c99 isms to setup various structures.
* move the comment about the scale factor and kill off trivial access func.
* make mode setting code use a bool rather than a ulong.
Ultimately I'd like to get rid of that mode bit entirely and handle it through
core pm routines, but have left it for now.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Here the ordering is a little tricky, so to keep changes minimal, a copy of the gpio
number is introduced.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This was suggested by Arnd Bergmann, Other elements may well
move in here in future, but it definitely makes sense for these.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Suggested by Arnd Bergmann. Note this will break ALL drivers that
are out of mainline. The fix is trivial change of
iio_allocate_device() -> iio_allocate_device(0)
Sorry if this causes issues for any one!
V2: Include new drivers in the update
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Actually this is generic 'I have no GPIO' support for the AK8975, instead
we have to go bus polling.
Huang Liang produced an initial patch which worked by removing the support
for GPIO pins. This patch instead makes GPIO support optional and Huang then
fixed some bugs in it.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is for the Asahi Kasei AK8975 3-axis magnetometer. It resides within
the magnetometer section of the IIO subsystem, and implements the raw
magn_x,y,z_raw attributes, as well as magn_x,y,z_scale attributes for
converting to Gauss.
Changed to use the magn_x,y,z_scale attributes, and made those attributes
give the scale factor to conert to Gauss. Also applied more fixes from
feedback.
Keeping mode as an unsigned long. I'm going to add proper power management
at some point anyway, which would deprecate this attribute.
Signed-off-by: Andrew Chew <achew@nvidia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Per email exchange with Jonathan Cameron, GAIN should instead be SCALE, to
be consistent with documentation.
Resending, since this goes with the 2/2 patch.
Signed-off-by: Andrew Chew <achew@nvidia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
this one completes my last patch set to compile fine for all drivers.
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Datta, Shubhrajyoti <shubhrajyoti@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
i2c_smbus_read_byte_data() returns an s32 type. We need to change
"rate" to signed for the error handling to work.
Also I changed it to propogate the error code instead of just returning
-EINVAL. Other error codes could be -EAGAIN for example.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adjust the error handling code so that it benefits from the call to
mutex_unlock at the end of the function.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@rcu exists@
position p1;
expression E;
@@
mutex_lock@p1(E);
...
mutex_unlock(E);
@exists@
position rcu.p1;
expression E;
@@
*mutex_lock@p1(E);
... when != mutex_unlock(E);
?*return ...;
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adding support for the Honeywell HMC5843. The interface to the device is
i2c
TODO:
Adding the documentation
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Barry Song <Barry.Song@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron
Alan Cox
Andrew Chew
Manuel Stahl
Dan Carpenter
Julia Lawall
Shubhrajyoti D
Barry Song