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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 19:53:59 +08:00
Commit Graph

397 Commits

Author SHA1 Message Date
Lorenzo Bianconi
f94124f9fb iio: accel: add support to LIS2DW12
add support to STMicroelectronics LIS2DW12 accelerometer in
st_accel framework

http://www.st.com/resource/en/datasheet/lis2dw12.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 21:59:48 +01:00
Lorenzo Bianconi
75d4c6d2e1 iio: st_sensors: decouple irq1 configuration parameters from the irq2 ones
Separate data-ready configuration parameters for INT1 and INT2 pins in
st_sensor_data_ready_irq data structure. That change will be use to
properly support LIS2DW12 accel sensor.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 21:04:22 +01:00
Lorenzo Bianconi
e72a060151 iio: st_sensors: add register mask for status register
Introduce register mask for data-ready status register since
pressure sensors (e.g. LPS22HB) export just two channels
(BIT(0) and BIT(1)) and BIT(2) is marked reserved while in
st_sensors_new_samples_available() value read from status register
is masked using 0x7.
Moreover do not mask status register using active_scan_mask since
now status value is properly masked and if the result is not zero the
interrupt has to be consumed by the driver. This fix an issue on LPS25H
and LPS331AP where channel definition is swapped respect to status
register.
Furthermore that change allows to properly support new devices
(e.g LIS2DW12) that report just ZYXDA (data-ready) field in status register
to figure out if the interrupt has been generated by the device.

Fixes: 97865fe413 (iio: st_sensors: verify interrupt event to status)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 21:01:45 +01:00
Michał Mirosław
1540d0106b iio: accel: kxcjk1013: add support for KXTF9
KXTF9 has mostly compatible register layout to KXCJK accelerometer.
There is no motion direction interrupt support, but there is tap
direction detection instead (not implemented in this patch).

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:50:06 +01:00
Michał Mirosław
d2ff1956ba iio: accel: kxcjk1013: make sampling_frequency_avail per-type
Make sampling_frequency_avail per-type - like sampling_frequency is.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:50:03 +01:00
Michał Mirosław
81fa8cb9f8 iio: accel: kxcjk1013: make sysfs/sampling_frequency_avail dynamic
In preparation for KXTF9 support, make sampling_frequency_avail
attribute dynamic.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:50:01 +01:00
Michał Mirosław
d8408e98f5 iio: accel: kxcjk1013: extract report_motion_event() from interrupt handler
Extract reporting of motion event direction from interrupt handler,
as it is not supported by KXTF9.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:49:58 +01:00
Michał Mirosław
f74e440c81 iio: accel: kxcjk1013: fix INT_CTRL/INT_SRC1 bit names
Fix INT_CTRL1 bit names to match register name and add names
for INT_SRC1 bits.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:49:55 +01:00
Michał Mirosław
7469ac69db iio: accel: kxcjk1003: refactor ODR setting
Refactor ODR/WUF setting code in preparation of KXTF9 support.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:49:51 +01:00
Harinath Nampally
4febd9f184 iio: accel: mma8452: Rename read/write event value callbacks to generic function name.
'mma8452_read_thresh' and 'mma8452_write_thresh' functions
does more than just read/write threshold values.
They also handle  IIO_EV_INFO_HIGH_PASS_FILTER_3DB and
IIO_EV_INFO_PERIOD therefore renaming to generic names.

Improves code readability, no impact on functionality.

Signed-off-by: Harinath Nampally <harinath922@gmail.com>
Acked-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:49:49 +01:00
Harinath Nampally
f8b7b30fb4 iio: accel: mma8452: Fix code style warning for unsigned int declarations
Replace 'unsigned' with 'unsigned int'
to improve code readability.

Issue found by checkpatch.

Signed-off-by: Harinath Nampally <harinath922@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-09-24 14:11:47 +01:00
Harinath Nampally
cd327b0047 iio: accel: mma8452: Fix code style warning
Replace symbolic permissions with octal permissions
to improve code readability.

Issue found by checkpatch.

Signed-off-by: Harinath Nampally <harinath922@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-09-24 14:11:24 +01:00
Harinath Nampally
605f72de13 iio: accel: mma8452: improvements to handle multiple events
This driver supports multiple devices like mma8653,
    mma8652, mma8452, mma8453 and fxls8471. Almost all
    these devices have more than one event.

    Current driver design hardcodes the event specific
    information, so only one event can be supported by this
    driver at any given time.
    Also current design doesn't have the flexibility to
    add more events.

    This patch improves by detaching the event related
    information from chip_info struct,and based on channel
    type and event direction the corresponding event
    configuration registers are picked dynamically.
    Hence both transient and freefall events can be
    handled in read/write callbacks.

    Changes are thoroughly tested on fxls8471 device on imx6UL
    Eval board using iio_event_monitor user space program.

    After this fix both Freefall and Transient events are
    handled by the driver without any conflicts.

Signed-off-by: Harinath Nampally <harinath922@gmail.com>
Reviewed-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-09-13 17:49:58 +01:00
Jonathan Cameron
6c5bffa80e iio:accel: drop assign iio_info.driver_module and iio_trigger_ops.owner
The equivalent of both of these are now done via macro magic when
the relevant register calls are made.  The actual structure
elements will shortly go away.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-22 21:22:40 +01:00
Greg Kroah-Hartman
5e47adb906 Second set of IIO new device support, features and cleanup for the 4.14 cycle.
New device support:
 * ak8974
   - support the AMI306.
 * st_magnetometer
   - add support for the LIS2MDL with bindings.
 * rockchip-saradc
   - add binding for rv1108 SoC (no driver change).
 * srf08
   - add srf02 (i2c only) and srf10 support.
 * stm32-timer
   - support for the STM32H7 to existing driver.
 
 Features:
 * tools
   - move over to the tools buildsystem rather than hand rolling.
   - add an install section to the build.
 * ak8974
   - use serial number to add device randomness.
   - add AMI306 calibration data output.
 * ccs811
   - triggered buffer support.
 * srf08
   - add a device tree table as the old style i2c probing is going away,
   - add triggered buffer support
 * st32-adc
   - add optional st,min-sample-time-nsecs binding to allow control of
     sampling against analog circuitry.
 * stm32-timer
   - add output compare triggers.
 * ti-ads1015
   - add threshold event support.
 * ti-ads7950
   - Allow use on ACPI platforms including providing a default reference
     voltage as there is no way to obtain this on ACPI currently.
 
 Cleanup and fixes:
 * ad7606
   - fix an error return code in probe.
 * ads1015
   - fix incorrect data rate setting update when capture in progress,
   - fix wrong scale information for the ADS1115,
   - make conversions work when CONFIG_PM is not set,
   - make sure we don't get a stale result after a runtime resume by
     ensuring we wait long enough,
   - avoid returning a false error form the buffer setup callbacks,
   - add enough wait time to get the correct conversion,
   - remove an unnecessary config register update,
   - add a helper to set conversion mode reducing repeated boilerplate,
   - use devm_iio_triggered_buffer_setup to simplify error and remove
     paths,
   - use iio_device_claim_direct_mode instead of opencoding the same.
 * ak8974
   - mark the INT_CLEAR register as precious to prevent debugfs access.
 * apds9300
   - constify the i2c_device_id.
 * at91-sama5 adc
   - add missing Kconfig dependency.
 * bma180 accel
   - constify the i2c_device_id.
 * rockchip_saradc
   - explicitly request exclusive reset control as part of the reset rework
     on going throughout the kernel.
 * st_accel
   - fix drdy configuration for a load of accelerometers that only have
     the int1 line.  Fix is unimportant as presumably no deviec tree actually
     used the non existent hardware line.
 * st_pressure
   - fix drdy configuration for LPS22HB and LPS25H by dropping int2 support
     as they don't have this. Fix is unimportant as presumably no device tree
     actually used the non existent hardware line.
 * stm32-dac
   - explicitly request exclusive reset control (part of reset being reworked).
 * tsl2583
   - constify the i2c_device_id.
 * xadc
   - coding style fixes.
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Merge tag 'iio-for-4.14b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of IIO new device support, features and cleanup for the 4.14 cycle.

New device support:
* ak8974
  - support the AMI306.
* st_magnetometer
  - add support for the LIS2MDL with bindings.
* rockchip-saradc
  - add binding for rv1108 SoC (no driver change).
* srf08
  - add srf02 (i2c only) and srf10 support.
* stm32-timer
  - support for the STM32H7 to existing driver.

Features:
* tools
  - move over to the tools buildsystem rather than hand rolling.
  - add an install section to the build.
* ak8974
  - use serial number to add device randomness.
  - add AMI306 calibration data output.
* ccs811
  - triggered buffer support.
* srf08
  - add a device tree table as the old style i2c probing is going away,
  - add triggered buffer support
* st32-adc
  - add optional st,min-sample-time-nsecs binding to allow control of
    sampling against analog circuitry.
* stm32-timer
  - add output compare triggers.
* ti-ads1015
  - add threshold event support.
* ti-ads7950
  - Allow use on ACPI platforms including providing a default reference
    voltage as there is no way to obtain this on ACPI currently.

Cleanup and fixes:
* ad7606
  - fix an error return code in probe.
* ads1015
  - fix incorrect data rate setting update when capture in progress,
  - fix wrong scale information for the ADS1115,
  - make conversions work when CONFIG_PM is not set,
  - make sure we don't get a stale result after a runtime resume by
    ensuring we wait long enough,
  - avoid returning a false error form the buffer setup callbacks,
  - add enough wait time to get the correct conversion,
  - remove an unnecessary config register update,
  - add a helper to set conversion mode reducing repeated boilerplate,
  - use devm_iio_triggered_buffer_setup to simplify error and remove
    paths,
  - use iio_device_claim_direct_mode instead of opencoding the same.
* ak8974
  - mark the INT_CLEAR register as precious to prevent debugfs access.
* apds9300
  - constify the i2c_device_id.
* at91-sama5 adc
  - add missing Kconfig dependency.
* bma180 accel
  - constify the i2c_device_id.
* rockchip_saradc
  - explicitly request exclusive reset control as part of the reset rework
    on going throughout the kernel.
* st_accel
  - fix drdy configuration for a load of accelerometers that only have
    the int1 line.  Fix is unimportant as presumably no deviec tree actually
    used the non existent hardware line.
* st_pressure
  - fix drdy configuration for LPS22HB and LPS25H by dropping int2 support
    as they don't have this. Fix is unimportant as presumably no device tree
    actually used the non existent hardware line.
* stm32-dac
  - explicitly request exclusive reset control (part of reset being reworked).
* tsl2583
  - constify the i2c_device_id.
* xadc
  - coding style fixes.
2017-08-20 10:42:42 -07:00
Arvind Yadav
e05d83bc58 iio: accel: bma180: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-08-20 10:15:45 +01:00
Greg Kroah-Hartman
8652892ed4 Merge 4.13-rc5 into staging-next
We need it here for iio fixes.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-14 13:35:22 -07:00
Lorenzo Bianconi
4303741f99 iio: accel: st_accel: fix data-ready line configuration
Remove int2 configuration parameter for LIS3DH, LSM303DLHC, LSM330D,
LSM330DL, LSM330DLC, LSM303AGR, LIS2DH12 and LNG2DM since these devices
export just int1 as data-ready line

Fixes: 23cde4d65c (iio: Added platform data to select the DRDY pin)
Fixes: dcdb0a78ca (iio: accel: st_accel: add support to lng2dm)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-08-12 13:46:47 +01:00
Greg Kroah-Hartman
055655a9f0 First set of IIO fixes for the 4.13 cycle.
* ad2s1210
   - Fix negative angular velocity reads (identified by a gcc 7 warning)
 * aspeed-adc
   - Wait for initialization sequence to finish before enabling channels.
   Without it no channels work.
 * axp288
   - Revert a patch that dropped some bogus register mods.  No one is entirely
   sure why but it breaks charging on some devices.
   - Fix GPADC pin read returning 0. Turns out a small sleep is needed.
 * bmc150
   - Make sure device is restored to normal state after suspend / resume
   cycle.  Otherwise, simple sysfs reads are broken.
 * tsl2563
   - fix wrong event code.
 * st-accel
   - add spi 3-wire support. Needed to fix the lsm303agr accelerometer
   which only had 3 wires in all cases.  Side effect is to enable optional
   3-wire support for other devices.
 * st-pressure
   - disable multiread by default for LPS22HB (only effects SPI)
 * sun4i-gpadc-iio
   - fix unbalanced irq enable / disable
 * vf610
   - Fix VALT slection for REFSEL bits - ensures we are using the
   right reference pins.
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Merge tag 'iio-fixes-for-4.13a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.13 cycle.

* ad2s1210
  - Fix negative angular velocity reads (identified by a gcc 7 warning)
* aspeed-adc
  - Wait for initialization sequence to finish before enabling channels.
  Without it no channels work.
* axp288
  - Revert a patch that dropped some bogus register mods.  No one is entirely
  sure why but it breaks charging on some devices.
  - Fix GPADC pin read returning 0. Turns out a small sleep is needed.
* bmc150
  - Make sure device is restored to normal state after suspend / resume
  cycle.  Otherwise, simple sysfs reads are broken.
* tsl2563
  - fix wrong event code.
* st-accel
  - add spi 3-wire support. Needed to fix the lsm303agr accelerometer
  which only had 3 wires in all cases.  Side effect is to enable optional
  3-wire support for other devices.
* st-pressure
  - disable multiread by default for LPS22HB (only effects SPI)
* sun4i-gpadc-iio
  - fix unbalanced irq enable / disable
* vf610
  - Fix VALT slection for REFSEL bits - ensures we are using the
  right reference pins.
2017-07-23 20:54:31 -07:00
Hans de Goede
e59e18989c iio: accel: bmc150: Always restore device to normal mode after suspend-resume
After probe we would put the device in normal mode, after a runtime
suspend-resume we would put it back in normal mode. But for a regular
suspend-resume we would only put it back in normal mode if triggers
or events have been requested.  This is not consistent and breaks
reading raw values after a suspend-resume.

This commit changes the regular resume path to also unconditionally put
the device back in normal mode, fixing reading of raw values not working
after a regular suspend-resume cycle.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-17 21:36:54 +01:00
Lorenzo Bianconi
b30f159367 iio: accel: st_accel: rename H3LIS331DL_DRIVER_NAME in H3LIS331DL_ACCEL_DEV_NAME
In order to use the standard name convention rename H3LIS331DL_DRIVER_NAME
macro in H3LIS331DL_ACCEL_DEV_NAME

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-09 19:19:17 +01:00
Lorenzo Bianconi
2b96d66c20 iio: accel: st_accel_spi: add support to H3LIS331DL, LIS331DL, LIS3LV02DL
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-09 19:18:31 +01:00
Lorenzo Bianconi
6011208d8a iio: accel: st_accel_i2c: fix i2c_device_id table
Add H3LIS331DL, LIS331DL and LIS3LV02DL entries in st_accel_id_table

Fixes: 1e52fefc9b (iio: accel: Add support for the h3lis331dl accel)
Fixes: bbf5f037fa (iio: st_accel: support the LIS331DL sensor)
Fixes: 3acddf74f8 (iio: st-sensors: add support for lis3lv02d accel)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-09 19:16:52 +01:00
Colin Ian King
72e36017ee iio: accel: make array init_data static to reduce code size
Making the const array init_data static rather having it on the
stack saves us a couple hundreds of bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
   3175	    848	      0	   4023	    fb7	drivers/iio/accel/da311.o

After:
   text	   data	    bss	    dec	    hex	filename
   2860	    936	      0	   3796	    ed4	drivers/iio/accel/da311.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-09 19:11:49 +01:00
Lorenzo Bianconi
a7b8829d24 iio: accel: st_accel: add SPI-3wire support
Add SPI Serial Interface Mode (SIM) register information
in st_sensor_settings look up table to support devices
(like LSM303AGR accel sensor) that allow just SPI-3wire
communication mode. SIM mode has to be configured before any
other operation since it is not enabled by default and the driver
is not able to read without that configuration

Whilst a fairly substantial patch, the actual logic is simple and it
is better to have the generic fix than a band aid.

Fixes: ddc05fa286 (iio: st-accel: add support for lsm303agr accel)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-06 19:32:29 +01:00
Lorenzo Bianconi
ff73e8611e iio: accel: st_accel_spi: add OF capability to st_accel_spi
Add device tree support for LIS3DH, LSM330D, LSM330DL, LSM330DLC,
LIS331DLH, LSM330, LSM303AGR, LIS2DH12, LIS3L02DQ, LNG2DM accel sensors.
Fix LIS302DL support defining of_device_id data field in st_accel_of_match
table

Fixes: 762227721f (iio: accel: st_accel: handle deprecated bindings)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-02 10:24:55 +01:00
Reno Farnesi
893bd0ebfa iio: sca3000: Remove trailing whitespace
Removes trailing whitespace to fix checkpatch errors

Signed-off-by: Reno Farnesi <nfarnesi4@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-02 10:24:54 +01:00
Lorenzo Bianconi
c24f83bad9 iio: accel: st_accel_spi: rename of_device_id table in st_accel_of_match
In order to add proper device tree support give a more general name
to of_device_id table

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-01 10:16:58 +01:00
Lorenzo Bianconi
250bbbdbed iio: common: st_sensors: move st_sensors_of_i2c_probe() in common code
Move st_sensors_of_i2c_probe() in st_sensors_core and rename it in
st_sensors_of_name_probe(). That change is necessary to add device-tree
support in spi code otherwise the rest of the autodetection will fail
since spi->modalias (and indio_dev->name) will be set using compatible
string value that differs from standard sensor name

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-01 10:16:56 +01:00
Hans de Goede
1911f48de0 iio: accel: bmc150: Add support for BOSC0200 ACPI device id
Add support for the BOSC0200 ACPI device id used on some x86 tablets.
note driver_data is not set to a specific model, driver_data is not
used anyways (instead detection is done on the chip_id reg) and the
2 tablets with a BOSC0200 ACPI device id I've have 2 different chips,
one has a BMA250E, the other a BMA222E.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-01 10:16:37 +01:00
Andy Shevchenko
ed3edc0909 iio: accel: mma9551: use NULL for GPIO connection ID
While using GPIO library API we might get into troubles in the future,
because we can't rely on label name in the driver since vendor firmware
might provide any GPIO pin there, e.g. "reset", and even mark it in _DSD
(in which case the request will fail).

To avoid inconsistency and potential issues we have two options:
a) generate GPIO ACPI mapping table and supply it via
acpi_dev_add_driver_gpios(), or
b) just pass NULL as connection ID.

The b) approach is much simpler and would work since the driver relies
on GPIO indices only. Moreover, the _CRS fallback mechanism, when
requesting GPIO, is going to be stricter, and supplying non-NULL
connection ID when neither _DSD, nor GPIO ACPI mapping is present, will
make request fail.

See
https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git/commit/?h=for-next&id=ed7fcf1ed5ea4ea01243995ae085757a77cf0f3e for more background.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-11 16:05:53 +01:00
Hans de Goede
440d303c77 Revert "iio: accel: bma180: Add support for BMA250E"
This reverts commit f1320b0951.

The BMA250E is already handled by the bmc150-accel-i2c driver, which
supports the "E" variants of the BMA??? accelerometers better then the
bma180 driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-11 15:07:41 +01:00
Hans de Goede
49dce0f486 Revert "iio: accel: bma180: Add ACPI enumeration support for BMA250E"
This reverts commit 5333e88661.

The BMA250E is already handled by the bmc150-accel-i2c driver, which
supports the "E" variants of the BMA??? accelerometers better then the
bma180 driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-11 15:07:40 +01:00
Lorenzo Bianconi
93b1b02fae iio: accel: st_accel_spi: fix spi_device_id table
Remove LSM303DL, LSM303DLM, LSM303DLH, LSM303DLHC from st_accel_id_table
since LSM303DL series does not support spi interface

Fixes: d62511689d (iio: accel: Add STMicroelectronics accel driver)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-11 15:07:39 +01:00
Hans de Goede
5333e88661 iio: accel: bma180: Add ACPI enumeration support for BMA250E
Some x86 tablets use the BMA250E accelerometer, add support for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-21 15:06:17 +01:00
Hans de Goede
f1320b0951 iio: accel: bma180: Add support for BMA250E
The BMA250E adds a new fifo mode and is fully backwards compatible
with the BMA250, but with a different chip-id.

This commit adds support for it by adjusting the chip-id check and
otherwise treating it as a regular BMA250.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-21 15:06:16 +01:00
Julia Lawall
40f4b1f031 iio: hid-sensor-accel-3d: Drop unnecessary static
Drop static on a local variable, when the variable is initialized before
use, on every possible execution path through the function.  The static has
no benefit, and dropping it reduces the code size.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@bad exists@
position p;
identifier x;
type T;
@@

static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@

-static
 T x@p;
 ... when != x
     when strict
?x = e;
// </smpl>

The change in code size is indicates by the following output from the size
command.

before:
   text    data     bss     dec     hex filename
   3879     512       8    4399    112f drivers/iio/accel/hid-sensor-accel-3d.o

after:
   text    data     bss     dec     hex filename
   3863     512       0    4375    1117 drivers/iio/accel/hid-sensor-accel-3d.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-07 13:56:36 +01:00
Shrirang Bagul
7383d44b84 iio: st_pressure: st_accel: Initialise sensor platform data properly
This patch fixes the sensor platform data initialisation for st_pressure
and st_accel device drivers. Without this patch, the driver fails to
register the sensors when the user removes and re-loads the driver.

1. Unload the kernel modules for st_pressure
$ sudo rmmod st_pressure_i2c
$ sudo rmmod st_pressure

2. Re-load the driver
$ sudo insmod st_pressure
$ sudo insmod st_pressure_i2c

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-26 06:37:53 +01:00
Greg Kroah-Hartman
f78a8236c6 Merge 4.11-rc6 into staging-next
We want the staging and iio fixes in here to handle merging easier.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-10 15:21:55 +02:00
Srinivas Pandruvada
862d1d89ad iio: accel: hid-sensor-accel-3d: Fix duplicate scan index error
When both accel_3d and gravity sensor are present, iio_device_register()
fails with "Duplicate scan index" error.
The reason for this is setting of indio_dev->num_channels based on
accel_3d channel for both gravity and accel-3d sensor. But number of
channels are not same, so for gravity it is pointing to some invalid
memory and getting scan_index to compare which may match.
To fix this issue, set the indio_dev->num_channels correctly based on
the sensor type.

Fixes: 0e377f3b9a ('iio: Add gravity sensor support')
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-02 11:26:14 +01:00
Javier Martinez Canillas
f1c088a769 iio: accel: mma7660: Add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-19 10:58:28 +00:00
Javier Martinez Canillas
f414bb19b7 iio: accel: mma7455_i2c: Add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-19 10:57:43 +00:00
Javier Martinez Canillas
16f1b4f0ba iio: accel: bma180: Add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-19 10:55:17 +00:00
Miguel Robles
7fa6790c22 iio: accel: Prefer unsigned int to bare use of unsigned
Fix checkpatch warnings:
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'

Signed-off-by: Miguel Robles <miguel.robles@farole.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-19 10:37:21 +00:00
Eva Rachel Retuya
fb0e5250a8 iio: accel: adxl345: Add SPI support
Add SPI driver that initializes SPI regmap for the adxl345 core driver.
The driver supports the same functionality as I2C namely the x, y, z and
scale readings.

Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-04 16:49:28 +00:00
Eva Rachel Retuya
5170512cf6 iio: accel: adxl345: Split driver into core and I2C
Move I2C-specific code into its own file and rely on regmap to access
registers. The core code provides access to x, y, z and scale readings.

Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-04 16:45:08 +00:00
Eva Rachel Retuya
31fd2c70b2 iio: accel: adxl345: Use I2C regmap instead of direct I2C access
Convert the driver to use regmap instead of I2C-specific functions. This
is done in preparation for splitting this driver into core and
I2C-specific code as well as introduction of SPI driver.

Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-04 16:41:27 +00:00
Eva Rachel Retuya
c62360753e iio: accel: Add driver for the Analog Devices ADXL345 3-axis accelerometer
Add basic IIO support for the Analog Devices ADXL345 3-axis accelerometer.
The datasheet can be found here:
http://www.analog.com/media/en/technical-documentation/data-sheets/ADXL345.pdf

Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Cc: Alison Schofield <amsfield22@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-02-05 09:08:40 +00:00
Wei Yongjun
fa4c115ca5 iio: common: ssp_sensors: accel: use devm_iio_device_register()
Use devm_iio_device_register() for IIO subsystem device
registration and delete the remove function since there
is no need after this change.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:15:22 +00:00
Linus Walleij
ed8959f40a iio: accel: fix Kconfig warning
commit 762227721f
"iio: accel: st_accel: handle deprecated bindings"
attempted to be smart and let users use the old I2C
driver and the new SPI driver, or the old SPI driver and
the new I2C driver in combination for the LIS3LV02,
and put the restrictions on the I2C and SPI subdrivers
not not be combined with the old subdrivers.

This doesn't work since the IIO ST accel top-level
component selects the I2C and SPI subdrivers, resulting
in the following Kconfig noise:

warning: (IIO_ST_ACCEL_3AXIS) selects IIO_ST_ACCEL_I2C_3AXIS
which has unmet direct dependencies (IIO && !SENSORS_LIS3_I2C
&& IIO_ST_ACCEL_3AXIS && IIO_ST_SENSORS_I2C)
warning: (IIO_ST_ACCEL_3AXIS) selects IIO_ST_ACCEL_SPI_3AXIS
which has unmet direct dependencies (IIO && !SENSORS_LIS3_SPI
&& IIO_ST_ACCEL_3AXIS && IIO_ST_SENSORS_SPI)
(...)

This fixes the issue by putting the dependencies directly
in the top-level component instead, so that it never gets
to select its unselectable subcomponent.

Fixes: 762227721f ("iio: accel: st_accel: handle deprecated bindings")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-23 09:27:30 +01:00