linux-toradex.git/drivers/iio/dac, branch v4.4.45

iio: dac: mcp4725: set iio name property in sysfs

2016-02-25T20:01:17+00:00

commit 97a249e98a72d6b79fb7350a8dd56b147e9d5bdb upstream.

Without this change, the name entity for mcp4725 is missing in
/sys/bus/iio/devices/iio\:device*/name

With this change, name is reported correctly

Signed-off-by: Yong Li 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'iio-fixes-for-4.4a' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

2015-11-18T21:15:50+00:00

Jonathan writes:

First set of IIO fixes for the 4.4 cycle.

This set does not include those for issues introduced during the merge
window.  Fixes of those will follow in a future series.

* ad5064
  - Make sure the local i2c_write returns 0 on success rather than the
    number of bytes transfered.  Otherwise we report an error on all writes.
  - Fix a shift for ad5629 and ad5669 which gives incorrect DAC output on
    these parts.
* ad7793
  - The product ID on the datasheet is wrong.  Fix it in the driver.
* IIO_DUMMY_EVGEN
  - select IRQ_WORK as a dependency.
* lpc32xx
  - make sure clock is prepared before enabling.
* si7020
  - data byte order was reversed. Fix it.
* vf610
  - Internal temperature calculation was wrong if a different
    reference voltage was used.  Now use a linear interpolation
    function to make it work over the full range.
  - Fix a division by zero in the case of a device tree property
    not being present (same issue two fixes).
* xilinx XADC
  - VREFN scale was wrong - fix it.

Merge tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2015-11-05T21:15:12+00:00

Pull spi updates from Mark Brown:
 "Quite a lot of activity in SPI this cycle, almost all of it in drivers
  with a few minor improvements and tweaks in the core.

   - Updates to pxa2xx to support Intel Broxton and multiple chip selects.
   - Support for big endian in the bcm63xx driver.
   - Multiple slave support for the mt8173
   - New driver for the auxiliary SPI controller in bcm2835 SoCs.
   - Support for Layerscale SoCs in the Freescale DSPI driver"

* tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (87 commits)
  spi: pxa2xx: Rework self-initiated platform data creation for non-ACPI
  spi: pxa2xx: Add support for Intel Broxton
  spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals
  spi: pxa2xx: Add output control for multiple Intel LPSS chip selects
  spi: pxa2xx: Use LPSS prefix for defines that are Intel LPSS specific
  spi: Add DSPI support for layerscape family
  spi: ti-qspi: improve ->remove() callback
  spi/spi-xilinx: Fix race condition on last word read
  spi: Drop owner assignment from spi_drivers
  spi: Add THIS_MODULE to spi_driver in SPI core
  spi: Setup the master controller driver before setting the chipselect
  spi: dw: replace magic constant by DW_SPI_DR
  spi: mediatek: mt8173 spi multiple devices support
  spi: mediatek: handle controller_data in mtk_spi_setup
  spi: mediatek: remove mtk_spi_config
  spi: mediatek: Update document devicetree bindings to support multiple devices
  spi: fix kernel-doc warnings about missing return desc in spi.c
  spi: fix kernel-doc warnings about missing return desc in spi.h
  spi: pxa2xx: Align a few defines
  spi: pxa2xx: Save other reg_cs_ctrl bits when configuring chip select
  ...

spi: Drop owner assignment from spi_drivers

2015-10-28T01:30:17+00:00

An spi_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Andrew F. Davis 
Acked-by: Jonathan Cameron 
Signed-off-by: Mark Brown

iio: ad5064: Fix ad5629/ad5669 shift

2015-10-25T12:30:42+00:00

The ad5629/ad5669 are the I2C variant of the ad5628/ad5668, which has a SPI
interface. They are mostly identical with the exception that the shift
factor is different. Currently the driver does not take care of this
difference which leads to incorrect DAC output values.

Fix this by introducing a custom channel spec for the ad5629/ad5669 with
the correct shift factor.

Fixes: commit 6a17a0768f77 ("iio:dac:ad5064: Add support for the ad5629r and ad5669r")
Signed-off-by: Lars-Peter Clausen 
Cc: 
Signed-off-by: Jonathan Cameron

iio:ad5064: Make sure ad5064_i2c_write() returns 0 on success

2015-10-25T12:29:31+00:00

i2c_master_send() returns the number of bytes transferred on success while
the ad5064 driver expects that the write() callback returns 0 on success.
Fix that by translating any non negative return value of i2c_master_send()
to 0.

Fixes: commit 6a17a0768f77 ("iio:dac:ad5064: Add support for the ad5629r and ad5669r")
Signed-off-by: Michael Hennerich 
Signed-off-by: Lars-Peter Clausen 
Cc: 
Signed-off-by: Jonathan Cameron

iio:dac:m62332: use dynamic scale

2015-10-11T14:45:17+00:00

Some regulators can supply multiple voltages. To take changing voltages
into account, the scale needs to be calculated on every read access.

Signed-off-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

iio:dac:m62332: address some style issues

2015-10-11T14:44:42+00:00

Fix some indentation issues and separate returns by empty lines (IIO
style). Also rename the channel mask in _read_raw() to mask.

Signed-off-by: Hartmut Knaack 
Signed-off-by: Jonathan Cameron

iio:dac:m62332: drop unrequired variable

2015-10-11T14:43:51+00:00

A return variable is not required in _write_raw(), and dropping it reduces
complexity, as well.

Signed-off-by: Hartmut Knaack 
Acked-by: Daniel Baluta 
Signed-off-by: Jonathan Cameron

iio:dac:m62332: use ARRAY_SIZE

2015-10-11T14:42:41+00:00

Make use of ARRAY_SIZE to prevent buffer issues.

Signed-off-by: Hartmut Knaack 
Acked-by: Daniel Baluta 
Signed-off-by: Jonathan Cameron