Commit graph

9 commits

Author SHA1 Message Date
Axel Lin
1b92c1cf6b Input: convert I2C drivers to use module_i2c_driver()
This patch converts the drivers in drivers/input/* to use the
module_i2c_driver() macro which makes the code smaller and a bit
simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-03-16 23:06:19 -07:00
Jonathan Cameron
75255b29d4 Input: ad7879-i2c - use swapped variant of i2c_smbus_read_word_data
This variant was introduced in

i2c: boilerplate function for byte swapped smbus_write/read_word_data

This also has the side effect of ensuring any errors from the i2c
read and no longer mangled.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-11-30 23:41:44 -08:00
Axel Lin
6485dec577 Input: ad7879-i2c - remove redundant MODULE_ALIAS
MODULE_DEVICE_TABLE will setup the module alias for us, thus adding
MODULE_ALIAS for an entry already in MODULE_DEVICE_TABLE is redundant.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-11-29 01:51:35 -08:00
Dmitry Torokhov
8672bd93d3 Input: ad7879 - consolidate PM methods
The PM methods are basically the same for SPI and I2C busses, so let's
use the same dev_pm_ops for both of them.

Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-11-15 22:24:22 -08:00
Dmitry Torokhov
d4f4158dcd Input: ad7879-i2c - wrap suspend and resume in CONFIG_PM_SLEEP
CONFIG_PM is defined when CONFIG_PM_SLEEP or CONFIG_PM_RUNTIME is defined,
however suspend and resume methods are only valid in the context of
CONFIG_PM_SLEEP. If only CONFIG_PM_RUNTIME is defined we get the following
warning (courtesy of Geerts randconfig builds):

	ad7879-i2c.c: warning: 'ad7879_i2c_resume' defined but not used

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-10-06 19:43:05 -07:00
Mark Brown
d5dc9ac3f6 Input: ad7879 - convert I2C to dev_pm_ops
There is a general move towards the use of dev_pm_ops rather than
bus specific suspend APIs as this simplifies both the bus and PM core
implementations. Convert the ad7879-ts I2C support over.

Compile tested only.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-01-06 23:02:52 -08:00
Michael Hennerich
16ea10a7d5 Input: ad7879 - use i2c_smbus_read_i2c_block_data() to lower overhead
Avoid additional addressing overhead incurred by word_data transfers.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-07-03 13:13:19 -07:00
Dmitry Torokhov
14fbbc36d1 Input: ad7879 - add open and close methods
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-07-03 13:13:14 -07:00
Mike Frysinger
4397c98a8a Input: ad7879 - split bus logic out
The ad7879 driver is using the old bus method of only supporting one
at a time (I2C or SPI). So refactor it like the other input drivers
that support multiple busses simultaneously.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-07-03 13:13:03 -07:00