Commits · 88bc30548aae18a39fd5d35cbb160a1ea347b4a7 · nexedi / linux

28 Jun, 2011 40 commits

IIO: ADC: New driver for AD7792/AD7793 3 Channel SPI ADC · 88bc3054

Michael Hennerich authored Jun 08, 2011

New driver for AD7792/AD7793 3-Channel, Low Noise,
Low Power, 16-/24-Bit Sigma-Delta ADC with On-Chip In-Amp
and Reference.

The AD7792/AD7793 features a dual use data out ready DOUT/RDY output.
In order to avoid contentions on the SPI bus, it's necessary to use
spi bus locking. The DOUT/RDY output must also be wired to an
interrupt capable GPIO.

In INDIO_RING_TRIGGERED mode, this driver may block its SPI bus segment
for an extended period of time.

Changes since V1:

Use bool where applicable.
Use data buffer that lives in their own cache line.
Restructure ad7793_calibrate_all to use an array.
Use msleep.
Query REG_ID instead of doing a write/read This is a test.
Add support for unipolar mode.
Drop range attribute in favor of write scale.
Add proper locking.
Use new validate_trigger callbacks.
Use IIO_IN_DIFF for differential channels.
Change attribute naming.
Use available_scan_masks.
Some other miscellaneous cleanup (none functional changes).
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

88bc3054

staging:iio:accel:kxsd9 replace kmallocs in power_up with use of already allocated buffer. · 3fd47d44

anish kumar authored Jun 27, 2011

Signed-off-by: anish kumar <anish198519851985@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3fd47d44

staging: IIO corrected the spelling in iio-trig-gpio · d5614701

anish authored Jun 27, 2011

Corrected the spelling.
Signed-off-by: anish kumar <anish198519851985@gmail.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

d5614701

staging:iio:accel:adis16201 general cleanup, move to iio_priv and buffers in adis16201_state · d31907f3

Jonathan Cameron authored Jun 27, 2011

Basically use various new facilities to tidy up.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

d31907f3

staging:iio:light:isl29018: allocate device state with iio_dev · 927afbec

Jonathan Cameron authored Jun 27, 2011

V2: Actually allocate the space for iio_priv
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

927afbec

staging:iio:magnetometer:hmc5843: allocate device state with iio_dev. · 88fa4de4
Jonathan Cameron authored Jun 27, 2011
```
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
```
88fa4de4

staging:iio:meter:ade7759: allocate state with iio_dev · afc2ff0a

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

afc2ff0a

staging:iio:magnetometer:ak8975: allocate chip state with iio_dev. · 338473c8

Jonathan Cameron authored Jun 27, 2011

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>

338473c8

staging:iio:resolver:ad2s90 general cleanup · 58f08b0a

Jonathan Cameron authored Jun 27, 2011

Very simple driver, so not much to do.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

58f08b0a

staging:iio:resolver:ad2s120x cleanup. · 8f2bd836

Jonathan Cameron authored Jun 27, 2011

I've currently squashed the vel + pos combined attribute.  If people need them
precisely paired I doubt they will get them from the sysfs interface anyway.
If that is a requirement it should come via a buffer implementation.

Note this patch leaves the completely non standard interface alone.
That will get fixed later.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

8f2bd836

staging:iio:resolver:ad2s1210 general driver cleanup. · b19e9ad5

Jonathan Cameron authored Jun 27, 2011

Note I haven't made any changes to the userspace interface as yet.
This is all about cleaning up what was actually there (handling
all errors etc).
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

b19e9ad5

staging:iio:meter:ade7854: Allocate buffers in state and state with iio_dev. · 937a9601

Jonathan Cameron authored Jun 27, 2011

Requires moving a few things around, but should be no functional changes.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

937a9601

staging:iio:meter:ade7754: allocate state with iio_dev and buffers in state. · 57157d1c

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

57157d1c

staging:iio:meter:ade7753 allocate chip state with iio_dev; allocate buffers within state · bfccd4fb

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

bfccd4fb

staging:iio:gyro:adxrs450: allocate chip state with iio_dev · ba61bb18

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

ba61bb18

staging:iio:gyro:adis16260: allocate chip state with iio_dev and use iio_priv to access. · d088ab83

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

d088ab83

staging:iio:gyro:adis16130: allocate chip state with iio_dev and use iio_priv to access it. · 9f8632d7

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9f8632d7

staging:iio:gyro:adis16080: allocate chip state with iio_dev · 1dd9290a

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1dd9290a

staging:iio:gyro:adis16060 allocate chip state with iio_dev. · 3a5952f9

Jonathan Cameron authored Jun 27, 2011

This is still a very odd driver.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3a5952f9

staging:iio:dds:ad9951: allocate chip state with iio_dev · 3e772581

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3e772581

staging:iio:dds:ad9910: allocate chip state with iio_dev · fb565f13

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

fb565f13

staging:iio:dds:ad9810: allocate chip state with iio_dev and use iio_priv for access. · a2829911

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

a2829911

staging:iio:dds:ad9850 allocate chip state with iio_dev + fix name of attr group. · 7be94372

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7be94372

staging:iio:ad9834: allocate chip state with iio_dev and use iio_priv to access. · 8b7163a5

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

8b7163a5

staging:iio:dds:ad9832: allocate chip state with iio_dev and use iio_priv to access. · 39f3b32e

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

39f3b32e

staging:iio:dds:ad5930 Fix attr group location + allocate state with iio_dev · 7074e1d4

Jonathan Cameron authored Jun 27, 2011

The main attribute group was placed under driver name for some reason.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7074e1d4

staging:iio:dac:max517: allocate chip state with iio_dev and use iio_priv to access it. · cada11fa
Jonathan Cameron authored Jun 27, 2011
```
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
```
cada11fa

staging:iio:dac:ad5791: allocate chip state with iio_dev and use iio_priv for access. · f5730d52

Jonathan Cameron authored Jun 27, 2011

Slightly fiddly case with two regulators - could reorder, but this is the approach with
smallest likely impact.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

f5730d52

staging:iio:dac:ad5446: allocate chip state with iio_dev and use iio_priv for access. · 86729fc4

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

86729fc4

staging:iio:dac:ad5504: allocate chip state with iio_dev and use iio_priv for access. · a3684ded

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

a3684ded

staging:iio:dac:ad5624r: allocate chip state with iio_dev and use iio_priv for access. · 3ff24205

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3ff24205

staging:iio:adc:adt7410 allocate chip state with iio_dev and use iio_priv to access. · d3de2935

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

d3de2935

staging:iio:addac:adt7316: allocate chip state with iio_dev and use iio_priv to access. · 70be4291

Jonathan Cameron authored Jun 27, 2011

Various minor cleanups needed to deal with removal of iio_dev pointer from chip state.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

70be4291

staging:iio:adc:adt7310: allocate chip state with iio_dev and use iio_priv for access. · 7978f9f8

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7978f9f8

staging:iio:adc:adt75: allocate chip state with iio_dev and cleanup some function calls. · 84e8d84d

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

84e8d84d

staging:iio:adc:ad7816: allocate chip state with iio_dev and use iio_priv to access. · b0011d6d

Jonathan Cameron authored Jun 27, 2011

Again, get rid of unwanted iio_dev pointer in state.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

b0011d6d

staging:iio:adc:ad7745 allocate chip state with iio_dev and use iio_priv to access. · febafb94

Jonathan Cameron authored Jun 27, 2011

Also remove the iio_dev pointer from chip state as never needed.

V2: Actually allocate the space for iio_priv data.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

febafb94

staging:iio:adc:ad7314 allocate chip state with iio_dev and use iio_priv to access. · 744e4a6b

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

744e4a6b

staging:iio:adc:ad7291: allocate chip state with iio_dev and use iio_priv for access. · d4397972

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

d4397972

staging:iio:adc:ad7152: allocate chip state with iio_dev and use iio_priv for access. · f4c794a2

Jonathan Cameron authored Jun 27, 2011

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

f4c794a2