linux-toradex.git/drivers/iio/dac, branch v4.2.2 Linux kernel for Apalis and Colibri modules Merge tag 'iio-fixes-for-4.2a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus 2015-07-13T21:18:07+00:00 Greg Kroah-Hartman gregkh@linuxfoundation.org 2015-07-13T21:18:07+00:00 a732cd437be58500214e617fbbf8a0fdc32ce226 Jonathan writes: First set of IIO fixes for the 4.2 cycle. * Fix a regression in hid sensors suspend time as a result of adding runtime pm. The normal flow of waking up devices in order to go into suspend (given the devices are normally suspended when not reading) to a regression in suspend time on some laptops (reports of an additional 8 seconds). Fix this by checking to see if a user action resulting in the wake up, and make it a null operation if it didn't. Note that for hid sensors, there is nothing useful to be done when moving into a full suspend from a runtime suspend so they might as well be left alone. * rochip_saradc: fix some missing MODULE_* data including the licence so that the driver does not taint the kernel incorrectly and can build as a module. * twl4030 - mark irq as oneshot as it always should have been. * inv-mpu - write formats for attributes not specified, leading to miss interpretation of the gyro scale channel when written. * Proximity ABI clarification. This had snuck through as a mess. Some drivers thought proximity went in one direction, some the other. We went with the most common option, documented it and fixed up the drivers going the other way. Fix for sx9500 included in this set. * ad624r - fix a wrong shift in the output data. * at91_adc - remove a false limit on the value of the STARTUP register applied by too small a type for the device tree parameter. * cm3323 - clear the bits when setting the integration time (otherwise we can only ever set more bits in the relevant field). * bmc150-accel - multiple triggers are registered, but on error were not being unwound in the opposite order leading to removal of triggers that had not yet successfully been registered (count down instead of up when unwinding). * tcs3414 - ensure right part of val / val2 pair read so that the integration time is not always 0. * cc10001_adc - bug in kconfig dependency. Use of OR when AND was intended. 
Jonathan writes:

First set of IIO fixes for the 4.2 cycle.

* Fix a regression in hid sensors suspend time as a result of adding runtime
  pm.  The normal flow of waking up devices in order to go into suspend
  (given the devices are normally suspended when not reading) to a regression
  in suspend time on some laptops (reports of an additional 8 seconds).
  Fix this by checking to see if a user action resulting in the wake up, and
  make it a null operation if it didn't.  Note that for hid sensors, there is
  nothing useful to be done when moving into a full suspend from a runtime
  suspend so they might as well be left alone.
* rochip_saradc: fix some missing MODULE_* data including the licence so that
  the driver does not taint the kernel incorrectly and can build as a module.
* twl4030 - mark irq as oneshot as it always should have been.
* inv-mpu - write formats for attributes not specified, leading to miss
  interpretation of the gyro scale channel when written.
* Proximity ABI clarification.  This had snuck through as a mess.  Some
  drivers thought proximity went in one direction, some the other.  We went
  with the most common option, documented it and fixed up the drivers going
  the other way.  Fix for sx9500 included in this set.
* ad624r - fix a wrong shift in the output data.
* at91_adc - remove a false limit on the value of the STARTUP register
  applied by too small a type for the device tree parameter.
* cm3323 - clear the bits when setting the integration time (otherwise
  we can only ever set more bits in the relevant field).
* bmc150-accel - multiple triggers are registered, but on error were not being
  unwound in the opposite order leading to removal of triggers that had not
  yet successfully been registered (count down instead of up when unwinding).
* tcs3414 - ensure right part of val / val2 pair read so that the integration
  time is not always 0.
* cc10001_adc - bug in kconfig dependency. Use of OR when AND was intended.
iio: DAC: ad5624r_spi: fix bit shift of output data value 2015-06-21T13:03:28+00:00 JM Friedt jmfriedt@femto-st.fr 2015-06-19T12:48:06+00:00 adfa969850ae93beca57f7527f0e4dc10cbe1309 The value sent on the SPI bus is shifted by an erroneous number of bits. The shift value was already computed in the iio_chan_spec structure and hence subtracting this argument to 16 yields an erroneous data position in the SPI stream. Signed-off-by: JM Friedt <jmfriedt@femto-st.fr> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
The value sent on the SPI bus is shifted by an erroneous number of bits.
The shift value was already computed in the iio_chan_spec structure and
hence subtracting this argument to 16 yields an erroneous data position
in the SPI stream.

Signed-off-by: JM Friedt <jmfriedt@femto-st.fr>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: add m62332 DAC driver 2015-05-17T08:37:45+00:00 Dmitry Eremin-Solenikov dbaryshkov@gmail.com 2015-05-14T14:21:16+00:00 b87b0c0f81e8d11c881b726b886b7502ab67d884 m62332 is a simple 2-channel DAC used on several Sharp Zaurus boards to control LCD voltage, backlight and sound. The driver use regulators to control the reference voltage and enabling/disabling the DAC. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
m62332 is a simple 2-channel DAC used on several Sharp Zaurus boards to
control LCD voltage, backlight and sound. The driver use regulators to
control the reference voltage and enabling/disabling the DAC.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: max517: Add support for MAX520 and MAX521 chips. 2015-03-28T10:57:34+00:00 Antonio Fiol antonio@fiol.es 2015-03-28T08:07:14+00:00 a878a1a61a1f0e4b23602ddd87b1408a7a748d0e MAX520 and MAX521 are protocol-compatible with the already supported chips, just have more channels. Signed-off-by: Antonio Fiol <antonio@fiol.es> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
MAX520 and MAX521 are protocol-compatible with the already supported
chips, just have more channels.

Signed-off-by: Antonio Fiol <antonio@fiol.es>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: ad5686: fix optional reference voltage declaration 2015-02-04T16:54:38+00:00 Urs Fässler urs.fassler@bytesatwork.ch 2015-02-02T16:12:23+00:00 da019f59cb16570e78feaf10380ac65a3a06861e When not using the "_optional" function, a dummy regulator is returned and the driver fails to initialize. Signed-off-by: Urs Fässler <urs.fassler@bytesatwork.ch> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
When not using the "_optional" function, a dummy regulator is returned
and the driver fails to initialize.

Signed-off-by: Urs Fässler <urs.fassler@bytesatwork.ch>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: add support of the max5821 2014-07-27T13:21:35+00:00 Philippe Reynes tremyfr@yahoo.fr 2014-07-25T21:43:00+00:00 472988972737cdc2ee83c05931822792a2bf2f76 Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: ad5686: Remove redundant variable 2014-07-03T20:59:56+00:00 Sachin Kamat sachin.kamat@samsung.com 2014-03-07T07:38:00+00:00 10215d8689b605ce30ef9327a98337ce056b1c3d ‘regdone’ is not used in the function. Remove it. Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Cc: Michael Hennerich <hennerich@blackfin.uclinux.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
‘regdone’ is not used in the function. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Cc: Michael Hennerich <hennerich@blackfin.uclinux.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: ad5504: Remove redundant variable 2014-07-03T20:58:26+00:00 Sachin Kamat sachin.kamat@samsung.com 2014-03-07T07:38:00+00:00 0d3a9b2daddc1ebb6db66d5f913bcd93f449f8e5 By re-arranging the code, 'ret' can be removed from this function. Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
By re-arranging the code, 'ret' can be removed from this
function.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: ad5624r_spi: Remove redundant variable 2014-07-03T20:56:35+00:00 Sachin Kamat sachin.kamat@samsung.com 2014-03-07T07:38:00+00:00 15255c6b4de66b8d282d0b62398d90ff7b24f4a5 By re-arranging the code, 'ret' can be removed from this function. Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
By re-arranging the code, 'ret' can be removed from this
function.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: dac: mcp4902/mcp4912/mcp4922 dac driver 2014-06-21T10:50:33+00:00 Michael Welling mwelling@ieee.org 2014-06-15T21:17:00+00:00 1b791fadf3a1749505b6cf04d4ef58d278ee42cd This patch provides an iio device driver for the Microchip MCP49x2 series DACs. Signed-off-by: Michael Welling <mwelling@ieee.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
This patch provides an iio device driver for the Microchip
MCP49x2 series DACs.

Signed-off-by: Michael Welling <mwelling@ieee.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>