Commit Graph

2038 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
f3cf3fb7ec First set of new device support, features and cleanups for IIO in the 4.5 cycle
Usual mixed bag, but the big item perhaps in this series is the DMA buffer
 support added by Lars-Peter Clausen. It's been in the works for a long time
 and it will be interesting to see what hardware support shows up now that
 this is available.
 
 New core features + associate cleanup.
 * Add generic DMA buffer infrastructure
 * Add a DMAengine framework based buffer
  Also associated minor changes.
    - Set the device buffer watermark based on the minimum watermark for all
      attached buffers rather than just the 'primary' one.
    - iio_buffer_init - only set the watermark default if one hasn't already
      been provided.  This allows simple support for devices with a fixed
      watermark.
    - read only attribute for watermark on fixed watermark devices.
    - add explicit buffer enable/disable callbacks to allow the buffer to
      do more than trivial actions when it is being turned on and off.
 * IIO_VAL_INT support in write_raw_get_fmt function.
 
 New device support
 * Freescale MMA7455/7456L accelerometers
 * Memsic MXC6255XC accelerometer
 * ST lis2dh12 accelerometer
 * TI ADS8688 ADC
 * TI Palamas (twl6035/7) gpadc
 
 New driver features
 * mma8452
   - support either of the available interrupt pins to cope with the case
     where board layout has lead to a particular one being connected.
 
 Staging graduation
 * Dummy driver
   - this driver acts as both an example and a test device for those with
     out hardware to develop userspace code against.
 
 Cleanups and minor bits and bobs.
 * treewide
   - Sort out the ordering of iio_device_register/unregister vs runtime
     pm function calls so that it's all nice and consistent and not race
     prone.
   - Check sscanf return values.  None of the cases will actually happen as
     the strings are supplied internally, but best to be consistent on this.
 * ad7780
   - switch over to the gpio descriptor interface and remove the now unused
     platform data which gets rid of a header entirely.
 * ad7793
   - drop a pointless else statement.
 * at91_adc
   - Swap kmalloc_array in for a kmalloc doing the same job.
 * dummy
   - get rid of some commented out lines that snuck in during the move of
     the driver.
 * lm3533-als
   - Print an error message on provision of an invalid resistance.
 * mcp320x
   - Add compatible strings with vendor prefix and deprecate those with
     no vendor prefix.
 * mxs-lradc
   - Use BIT macro in various places rather than shifted ones.
 * pa12203001
   - Power off the chip if the registration fails.
 * pulsedlight-lidar-lite
   - add runtime PM support.
 * xilinx XADC
   - constify an iio_buffer_setup_ops structure.
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Merge tag 'iio-for-4.5a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of new device support, features and cleanups for IIO in the 4.5 cycle

Usual mixed bag, but the big item perhaps in this series is the DMA buffer
support added by Lars-Peter Clausen. It's been in the works for a long time
and it will be interesting to see what hardware support shows up now that
this is available.

New core features + associate cleanup.
* Add generic DMA buffer infrastructure
* Add a DMAengine framework based buffer
 Also associated minor changes.
   - Set the device buffer watermark based on the minimum watermark for all
     attached buffers rather than just the 'primary' one.
   - iio_buffer_init - only set the watermark default if one hasn't already
     been provided.  This allows simple support for devices with a fixed
     watermark.
   - read only attribute for watermark on fixed watermark devices.
   - add explicit buffer enable/disable callbacks to allow the buffer to
     do more than trivial actions when it is being turned on and off.
* IIO_VAL_INT support in write_raw_get_fmt function.

New device support
* Freescale MMA7455/7456L accelerometers
* Memsic MXC6255XC accelerometer
* ST lis2dh12 accelerometer
* TI ADS8688 ADC
* TI Palamas (twl6035/7) gpadc

New driver features
* mma8452
  - support either of the available interrupt pins to cope with the case
    where board layout has lead to a particular one being connected.

Staging graduation
* Dummy driver
  - this driver acts as both an example and a test device for those with
    out hardware to develop userspace code against.

Cleanups and minor bits and bobs.
* treewide
  - Sort out the ordering of iio_device_register/unregister vs runtime
    pm function calls so that it's all nice and consistent and not race
    prone.
  - Check sscanf return values.  None of the cases will actually happen as
    the strings are supplied internally, but best to be consistent on this.
* ad7780
  - switch over to the gpio descriptor interface and remove the now unused
    platform data which gets rid of a header entirely.
* ad7793
  - drop a pointless else statement.
* at91_adc
  - Swap kmalloc_array in for a kmalloc doing the same job.
* dummy
  - get rid of some commented out lines that snuck in during the move of
    the driver.
* lm3533-als
  - Print an error message on provision of an invalid resistance.
* mcp320x
  - Add compatible strings with vendor prefix and deprecate those with
    no vendor prefix.
* mxs-lradc
  - Use BIT macro in various places rather than shifted ones.
* pa12203001
  - Power off the chip if the registration fails.
* pulsedlight-lidar-lite
  - add runtime PM support.
* xilinx XADC
  - constify an iio_buffer_setup_ops structure.
2015-12-01 09:13:29 -08:00
Jonathan Cameron
438f13a283 staging:iio: Delete some commented out lines in Kconfig and Makefile.
These should have been removed with the driver move out of staging
but instead were commented out.  This was missed in reviews at the
time so fixing it up now.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-11-21 20:14:57 +00:00
Dragos Bogdan
8ffedc1b12 staging:iio:ad7780: Remove the ad7780_platform_data
The ad7780_platform_data contains just the reference voltage information.
Since the preferred way of specifying this information is using the Linux
regulator framework and the ad7780 platform_data is not used by other
users, it can be completely removed.

Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-11-21 17:52:42 +00:00
Greg Kroah-Hartman
819db468b2 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.
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Merge tag 'iio-fixes-for-4.4a' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

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.
2015-11-18 13:15:50 -08:00
Dragos Bogdan
52555a5d10 staging:iio:ad7780: Switch to the gpio descriptor interface
Use the gpiod interface for the powerdown_gpio instead of the deprecated
old non-descriptor interface.

The powerdown pin can be tied high, so the gpio is optional.
Remove the gpio_pdrst platform_data member since the new interface is
used.

Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-11-18 18:58:29 +00:00
Nizam Haider
e0c961bdaf iio: adc: mxs-lradc: Prefer using the BIT macro
Replaces bit shifting on 1 with the BIT(x) macro

Signed-off-by: Nizam Haider <nijamh@cdac.in>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-11-15 11:11:43 +00:00
Linus Torvalds
75f5db39ff spi: Updates for v4.4
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.
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Merge tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

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
  ...
2015-11-05 13:15:12 -08:00
Mark Brown
4c84518523 Merge remote-tracking branches 'spi/topic/omap-100k', 'spi/topic/omap-uwire', 'spi/topic/owner', 'spi/topic/pxa' and 'spi/topic/pxa2xx' into spi-next 2015-11-04 11:02:12 +00:00
Ioana Ciornei
806535b623 staging: iio: accel: add bracket on all branches of the if/else
This patch adds brackets on all of the conditional branches in
order to follow the linux coding style.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 08:53:42 +09:00
Ioana Ciornei
48948abe05 staging: iio: accel: place logical operators on the previous line
This patch moves the logical operators on the previous line in order
to follow the linux coding style.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 08:53:42 +09:00
Ioana Ciornei
663b03d8ae staging: iio: accel: remove unwanted blank lines
This patch removes unwanted blank lines in order to follow
the linux coding style.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 08:53:42 +09:00
Ioana Ciornei
c50ea26641 staging: iio: accel: fix block comments alignment
This patch properly aligns the block comment in order
to follow the linux coding style convetions.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 08:53:42 +09:00
Ioana Ciornei
4a613ad42d staging: iio: accel: add blank lines after function definitions
This patch add blank lines after functions definitions in
order to follow the linux coding style.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 08:53:42 +09:00
Ioana Ciornei
89ea25c7ae staging: iio: accel: change uint8_t to u8
This patch changes uint8_t type to preferred kernel
type u8 in order to follow the linux coding style
conventions.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 08:53:42 +09:00
Ioana Ciornei
252b1d8466 staging: iio: accel: properly align function arguments
This patch properly aligns the function arguments or
its parameters in order to match the open bracket.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 08:53:42 +09:00
Ioana Ciornei
1abe0c9a72 staging: iio: accel: add spaces aroung binary operators
This patch adds spaces around binary operators such as '*',
'/', '+' in order to improve readability.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 08:53:42 +09:00
Ksenija Stanojevic
b8732dd2f5 Staging: iio: adc: Fix sparse warning
Fix following sparse endianness problems:

  CHECK   drivers/staging/iio/adc/ad7816.c
drivers/staging/iio/adc/ad7816.c:91:17: warning: cast to restricted
__be16
drivers/staging/iio/adc/ad7816.c:91:17: warning: cast to restricted
__be16
drivers/staging/iio/adc/ad7816.c:91:17: warning: cast to restricted
__be16
drivers/staging/iio/adc/ad7816.c:91:17: warning: cast to restricted
__be16

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 07:55:17 +09:00
Ksenija Stanojevic
4c3577db3e Staging: iio: impedance-analyzer: Fix sparse warning
Fix following sparse endian warning:

drivers/staging/iio/impedance-analyzer/ad5933.c:671:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:671:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:671:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:671:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:672:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:672:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:672:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:672:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:674:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:674:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:674:34: warning: cast to restricted __be16
drivers/staging/iio/impedance-analyzer/ad5933.c:674:34: warning: cast to restricted __be16

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 07:55:17 +09:00
Andrew F. Davis
3821a065f5 spi: Drop owner assignment from spi_drivers
An spi_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-28 10:30:17 +09:00
Alison Schofield
4b60c887d4 staging: iio: dummy: replace block comment with single line comment
Replace one block comment with a single line comment. Follow style of
previous comment and omit word channel, since it's clear the topic is
channels.

Addresses checkpatch.pl:
WARNING: Block comments use * on subsequent lines

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27 14:49:09 +09:00
Alison Schofield
f8087abc45 staging: iio: dummy: use uppercase descriptors for enum names
Replace lower case names in the enum dummy_scan_elements with
uppercase names and a descriptive prefix: DUMMY_INDEX_

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27 14:49:09 +09:00
Cristina Moraru
31a99443a5 staging: iio: adis16060_core: Fix error handling
We need to check adis16060_spi_read return code to avoid feeding user
space with bogus data.
While, at it introduce out_unlock label in order to simplify locking
on error path.

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27 14:49:09 +09:00
Cristina Moraru
1c58f0eb9c staging: iio: Remove unused variable
Remove variable that is initialized but not used.

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27 14:49:09 +09:00
Greg Kroah-Hartman
cf516d08ec Merge 4.3-rc7 into staging-next
We want the other staging patches in this branch as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27 09:13:38 +09:00
Cristina Opriceana
415f792447 iio: Move IIO Dummy Driver out of staging
This patch moves the reference IIO dummy driver from drivers/staging/iio
into a separate folder, drivers/iio/dummy and adds the proper Kconfig
and Makefile for it.

A new config menu entry called IIO dummy driver has also been added
in the Industrial I/O support menu, corresponding to this driver.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-25 12:33:01 +00:00
Vladimir Zapolskiy
01bb70ae0b iio: lpc32xx_adc: fix warnings caused by enabling unprepared clock
If common clock framework is configured, the driver generates a warning,
which is fixed by this change:

    root@devkit3250:~# cat /sys/bus/iio/devices/iio\:device0/in_voltage0_raw
    ------------[ cut here ]------------
    WARNING: CPU: 0 PID: 724 at drivers/clk/clk.c:727 clk_core_enable+0x2c/0xa4()
    Modules linked in: sc16is7xx snd_soc_uda1380
    CPU: 0 PID: 724 Comm: cat Not tainted 4.3.0-rc2+ #198
    Hardware name: LPC32XX SoC (Flattened Device Tree)
    Backtrace:
    [<>] (dump_backtrace) from [<>] (show_stack+0x18/0x1c)
    [<>] (show_stack) from [<>] (dump_stack+0x20/0x28)
    [<>] (dump_stack) from [<>] (warn_slowpath_common+0x90/0xb8)
    [<>] (warn_slowpath_common) from [<>] (warn_slowpath_null+0x24/0x2c)
    [<>] (warn_slowpath_null) from [<>] (clk_core_enable+0x2c/0xa4)
    [<>] (clk_core_enable) from [<>] (clk_enable+0x24/0x38)
    [<>] (clk_enable) from [<>] (lpc32xx_read_raw+0x38/0x80)
    [<>] (lpc32xx_read_raw) from [<>] (iio_read_channel_info+0x70/0x94)
    [<>] (iio_read_channel_info) from [<>] (dev_attr_show+0x28/0x4c)
    [<>] (dev_attr_show) from [<>] (sysfs_kf_seq_show+0x8c/0xf0)
    [<>] (sysfs_kf_seq_show) from [<>] (kernfs_seq_show+0x2c/0x30)
    [<>] (kernfs_seq_show) from [<>] (seq_read+0x1c8/0x440)
    [<>] (seq_read) from [<>] (kernfs_fop_read+0x38/0x170)
    [<>] (kernfs_fop_read) from [<>] (do_readv_writev+0x16c/0x238)
    [<>] (do_readv_writev) from [<>] (vfs_readv+0x50/0x58)
    [<>] (vfs_readv) from [<>] (default_file_splice_read+0x1a4/0x308)
    [<>] (default_file_splice_read) from [<>] (do_splice_to+0x78/0x84)
    [<>] (do_splice_to) from [<>] (splice_direct_to_actor+0xc8/0x1cc)
    [<>] (splice_direct_to_actor) from [<>] (do_splice_direct+0xa0/0xb8)
    [<>] (do_splice_direct) from [<>] (do_sendfile+0x1a8/0x30c)
    [<>] (do_sendfile) from [<>] (SyS_sendfile64+0x104/0x10c)
    [<>] (SyS_sendfile64) from [<>] (ret_fast_syscall+0x0/0x38)

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-25 12:21:59 +00:00
Arnd Bergmann
aea545fa90 staging: iio: select IRQ_WORK for IIO_DUMMY_EVGEN
The iio dummy code was recently changed to use irq_work_queue, but
that code is compiled into the kernel only if IRQ_WORK is set, so
we can get a link error here:

drivers/built-in.o: In function `iio_evgen_poke':
(.text+0x208a04): undefined reference to `irq_work_queue'

This changes the Kconfig file to match what other drivers do.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: fd2bb310ca ("Staging: iio: Move evgen interrupt generation to irq_work")
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-25 12:15:36 +00:00
Cristina Moraru
cd857a158a staging: iio: magnetometer: Remove explicit comparisons
Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:32:09 -07:00
Cristina Moraru
05824120e4 staging: iio: gyro: Remove explicit comparisons
Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:32:09 -07:00
Cristina Moraru
ac1640fbd8 staging: iio: trigger: Remove explicit comparisons
Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:32:09 -07:00
Cristina Moraru
97deb1bc11 staging: iio: frequency: Remove explicit comparisons
Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:32:09 -07:00
Cristina Moraru
e6e65f97db staging: iio: cdc: Remove explicit comparisons
Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:32:09 -07:00
Cristina Moraru
eee587ea87 staging: iio: accel: Remove explicit comparisons
Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:32:09 -07:00
Cristina Moraru
062f782b37 staging: iio: meter: Remove explicit comparisons
Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:32:09 -07:00
Cristina Moraru
d59b7b6834 staging: iio: light: Remove explicit comparisons
Remove comparisons to 0 or NULL

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:32:09 -07:00
Shivani Bhardwaj
561e296734 Staging: iio: tsl2x7x_core: Remove unrequired parentheses from DIV_ROUND_UP
Remove parentheses surrounding the first argument of the macro
DIV_ROUND_UP as they are not required.
Semantic patch used:

@@
expression e1,e2;
@@
DIV_ROUND_UP(
- (
  e1
- )
  ,e2)

Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:48:19 -07:00
Shivani Bhardwaj
3c6b71a503 Staging: iio: ad7192: Remove unnecessary NULL test
The variable pdata is already NULL tested before so, any further tests
should be removed.

Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:48:19 -07:00
Shraddha Barke
859ba4684e Staging: iio: cdc: Remove unused macros
Remove the macros since they are not used anywhere throughout the
kernel.

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:48:19 -07:00
Ioana Ciornei
5f7e280f5a staging: iio: adc: remove the use of CamelCase
Remove the use of CamelCase to follow the kernel naming conventions

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:47:28 -07:00
Ioana Ciornei
253ed6848f staging: iio: adc: remove multiple blank lines
Remove multiple blank lines since there is no practical reason
to have it

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:47:28 -07:00
Ioana Ciornei
779c123e1a staging: iio: adc: add blank line after declarations
Insert a blank line after declarations

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:47:28 -07:00
Ioana Ciornei
5feb8c51db staging: iio: adc: add spaces around binary operators
Add spaces around binary operators like -, +, * etc
in order to improve readability

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:47:28 -07:00
Ioana Ciornei
c30685c67c staging: iio: adc: remove space after cast
Remove the space after an explicit cast because there is no
point in having it

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:47:28 -07:00
Ioana Ciornei
603f102f78 staging: iio: adc: remove explicit comparison to NULL
Use !condition instead off condition == NULL when comparing with NULL

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:47:28 -07:00
Ioana Ciornei
e8ef49f09b staging: iio: adc: properly indent to match open paranthesis
Indent parameters and arguments passed to function calls to match
open paranthesis

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:47:28 -07:00
Ioana Ciornei
0e4f007500 staging: iio: adc: use kernel types u32 and u64
Convert uint32_t to u32 and uint64_t to u64 in order to
follow the kernel best practice

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:47:28 -07:00
Ioana Ciornei
4a737ec350 staging: iio: cdc: simplify return flow
Simplify return flow ad7150_write_event_params in order to reduce code length.
Since i2c_smbus_write_word_data only returns a negative value or 0 the change is safe.

This patch fixes the following coccicheck warning:

drivers/staging/iio/cdc/ad7150.c:182:2-5: WARNING: end returns can be simpified if negative or 0 value

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 22:46:48 -07:00
Greg Kroah-Hartman
5da654541b Second set of new drivers, functionality and cleanups for IIO in the 4.4 cycle.
Core stuff
 * adjust resistance documentation to allow for output devices.
 
 New device support:
 * bmc150
  - split the i2c driver up into a core and i2c_regmap part including regmap
    conversion.
  - add spi support.
 * mcp4531 digitial potentiometer driver.
 * Measurement Specialties set of drivers with a core library module providing
   common functionality.  Note that the htu21 has a driver in hwmon, but the
   view from that side was that, given the range of devices the same silicon
   turns up in are not all typical hwmon material, that driver would be
   deprecated in favour of this new support.
  - ms8607 temperature, pressure and humidty sensor
  - ms5637 temperature and pressure sensor
  - htu21 temperature and humidity sensor
  - tsys02d temperature sensor
  - tsys01 temperature sensor
 
 Cleanups
 * tree wide.
  - squish cases where irq 0 is still considered valid.
 * apds9960
  - sparse endian warning cleanups by making endianness explicit.
 * ad5504
  - leave group naming to the core.
 * ad7746
  - cleanup comment style.
  - drop an unnecessary bit of dev_info
  - add some appropriate uses of the BIT macro.
 * ad799x
  - leave group naming to the core.
 * hdc100x - introduced this cycle,.
  - fix a wrong offset value.
 * lidar
  - add missing MODULE_DEVICE_TABLE for dt.
 * max1363
  - leave sysfs group naming to the core.
 * m62332 got the Harmut treatment and as ever he found a 'few' bits the
   rest of us had missed!
  - Share scale and offset attributes across channels.
  - Shutdown the device on driver remove
  - Use ARRAY_SIZE rather than a hard coded count for channels.
  - Return more directly in the write_raw callback dropping a local variable
    along the way.
  - a few style issues
  - move to reading the regulator voltage for each use allowing for dynamic
    regulators.  This is a common feature across drivers so we might end
    up with more fixes throughout the tree for this.
 * mlx96014 - introduced this cycle.
  - fixed up a spot of error handling.
 * vz89x - introduced this cycle.
  - work around a hardware quirk.
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Merge tag 'iio-for-4.4b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of new drivers, functionality and cleanups for IIO in the 4.4 cycle.

Core stuff
* adjust resistance documentation to allow for output devices.

New device support:
* bmc150
 - split the i2c driver up into a core and i2c_regmap part including regmap
   conversion.
 - add spi support.
* mcp4531 digitial potentiometer driver.
* Measurement Specialties set of drivers with a core library module providing
  common functionality.  Note that the htu21 has a driver in hwmon, but the
  view from that side was that, given the range of devices the same silicon
  turns up in are not all typical hwmon material, that driver would be
  deprecated in favour of this new support.
 - ms8607 temperature, pressure and humidty sensor
 - ms5637 temperature and pressure sensor
 - htu21 temperature and humidity sensor
 - tsys02d temperature sensor
 - tsys01 temperature sensor

Cleanups
* tree wide.
 - squish cases where irq 0 is still considered valid.
* apds9960
 - sparse endian warning cleanups by making endianness explicit.
* ad5504
 - leave group naming to the core.
* ad7746
 - cleanup comment style.
 - drop an unnecessary bit of dev_info
 - add some appropriate uses of the BIT macro.
* ad799x
 - leave group naming to the core.
* hdc100x - introduced this cycle,.
 - fix a wrong offset value.
* lidar
 - add missing MODULE_DEVICE_TABLE for dt.
* max1363
 - leave sysfs group naming to the core.
* m62332 got the Harmut treatment and as ever he found a 'few' bits the
  rest of us had missed!
 - Share scale and offset attributes across channels.
 - Shutdown the device on driver remove
 - Use ARRAY_SIZE rather than a hard coded count for channels.
 - Return more directly in the write_raw callback dropping a local variable
   along the way.
 - a few style issues
 - move to reading the regulator voltage for each use allowing for dynamic
   regulators.  This is a common feature across drivers so we might end
   up with more fixes throughout the tree for this.
* mlx96014 - introduced this cycle.
 - fixed up a spot of error handling.
* vz89x - introduced this cycle.
 - work around a hardware quirk.
2015-10-16 21:28:55 -07:00
Shraddha Barke
3a1d9489e9 Staging: iio: Remove exceptional & on function name
In this file, function names are otherwise used as pointers without &.

A simplified version of the Coccinelle semantic patch that makes this
change is as follows:

// <smpl>
@r@
identifier f;
@@

f(...) { ... }
@@
identifier r.f;
@@

- &f
+ f
// </smpl>

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-13 10:11:03 -07:00
Alexandre Belloni
b94e22805a iio: mxs-lradc: Fix temperature offset
0° Kelvin is actually −273.15°C, not -272.15°C. Fix the temperature offset.
Also improve the comment explaining the calculation.

Reported-by: Janusz Użycki <j.uzycki@elpromaelectronics.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Marek Vasut <marex@denx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-11 15:02:02 +01:00