linux.git/drivers/iio/accel, branch v4.19.205

iio: accel: bma180: Fix BMA25x bandwidth register values

2021-07-28T09:13:51+00:00

commit 8090d67421ddab0ae932abab5a60200598bf0bbb upstream

According to the BMA253 datasheet [1] and BMA250 datasheet [2] the
bandwidth value for BMA25x should be set as 01xxx:

  "Settings 00xxx result in a bandwidth of 7.81 Hz; [...]
   It is recommended [...] to use the range from ´01000b´ to ´01111b´
   only in order to be compatible with future products."

However, at the moment the drivers sets bandwidth values from 0 to 6,
which is not recommended and always results into 7.81 Hz bandwidth
according to the datasheet.

Fix this by introducing a bw_offset = 8 = 01000b for BMA25x,
so the additional bit is always set for BMA25x.

[1]: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bma253-ds000.pdf
[2]: https://datasheet.octopart.com/BMA250-Bosch-datasheet-15540103.pdf

Cc: Peter Meerwald 
Fixes: 2017cff24cc0 ("iio:bma180: Add BMA250 chip support")
Signed-off-by: Stephan Gerhold 
Reviewed-by: Linus Walleij 
Link: https://lore.kernel.org/r/20210526094408.34298-2-stephan@gerhold.net
Cc: 
Signed-off-by: Jonathan Cameron 
[sudip: adjust context]
Signed-off-by: Sudip Mukherjee 
Signed-off-by: Greg Kroah-Hartman

iio: accel: bma180: Use explicit member assignment

2021-07-28T09:13:51+00:00

commit 9436abc40139503a7cea22a96437697d048f31c0 upstream

This uses the C99 explicit .member assignment for the
variant data in struct bma180_part_info. This makes it
easier to understand and add new variants.

Cc: Peter Meerwald 
Cc: Oleksandr Kravchenko 
Signed-off-by: Linus Walleij 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Sudip Mukherjee 
Signed-off-by: Greg Kroah-Hartman

iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp()

2021-07-20T14:15:53+00:00

[ Upstream commit 334883894bc1e145a1e0f5de1b0d1b6a1133f0e6 ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.

Found during an audit of all calls of this function.

Fixes: db6a19b8251f ("iio: accel: Add trigger support for STK8BA50")
Signed-off-by: Jonathan Cameron 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210501170121.512209-8-jic23@kernel.org
Signed-off-by: Sasha Levin

iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp()

2021-07-20T14:15:53+00:00

[ Upstream commit f40a71ffec808e7e51848f63f0c0d3c32d65081b ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.

Found during an audit of all calls of this function.

Fixes: 95c12bba51c3 ("iio: accel: Add buffer mode for Sensortek STK8312")
Signed-off-by: Jonathan Cameron 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210501170121.512209-7-jic23@kernel.org
Signed-off-by: Sasha Levin

iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp()

2021-07-20T14:15:53+00:00

[ Upstream commit 3ab3aa2e7bd57497f9a7c6275c00dce237d2c9ba ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.

Found during an audit of all calls of this function.

Fixes: 1a4fbf6a9286 ("iio: accel: kxcjk1013 3-axis accelerometer driver")
Signed-off-by: Jonathan Cameron 
Cc: Srinivas Pandruvada 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210501170121.512209-5-jic23@kernel.org
Signed-off-by: Sasha Levin

iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp()

2021-07-20T14:15:53+00:00

[ Upstream commit c6559bf796ccdb3a0c79db846af96c8f7046880b ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Note this matches what was done in all the other hid sensor drivers.
This one was missed previously due to an extra level of indirection.

Found during an audit of all calls of this function.

Fixes: a96cd0f901ee ("iio: accel: hid-sensor-accel-3d: Add timestamp")
Signed-off-by: Jonathan Cameron 
Cc: Srinivas Pandruvada 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210501170121.512209-4-jic23@kernel.org
Signed-off-by: Sasha Levin

iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp()

2021-07-20T14:15:53+00:00

[ Upstream commit 151dbf0078da98206817ee0b87d499035479ef11 ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.

Found during an audit of all calls of this function.

Fixes: 194dc4c71413 ("iio: accel: Add triggered buffer support for BMA220")
Signed-off-by: Jonathan Cameron 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210501170121.512209-3-jic23@kernel.org
Signed-off-by: Sasha Levin

iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()

2021-07-20T14:15:53+00:00

[ Upstream commit fc36da3131a747a9367a05caf06de19be1bcc972 ]

To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.

Found during an audit of all calls of this function.

Fixes: b9a6a237ffc9 ("iio:bma180: Drop _update_scan_mode()")
Signed-off-by: Jonathan Cameron 
Cc: Peter Meerwald 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210501170121.512209-2-jic23@kernel.org
Signed-off-by: Sasha Levin

iio:accel:adis16201: Fix wrong axis assignment that prevents loading

2021-05-22T08:59:24+00:00

commit 4e102429f3dc62dce546f6107e34a4284634196d upstream.

Whilst running some basic tests as part of writing up the dt-bindings for
this driver (to follow), it became clear it doesn't actually load
currently.

iio iio:device1: tried to double register : in_incli_x_index
adis16201 spi0.0: Failed to create buffer sysfs interfaces
adis16201: probe of spi0.0 failed with error -16

Looks like a cut and paste / update bug.  Fixes tag obviously not accurate
but we don't want to bother carry thing back to before the driver moved
out of staging.

Fixes: 591298e54cea ("Staging: iio: accel: adis16201: Move adis16201 driver out of staging")
Signed-off-by: Jonathan Cameron 
Cc: 
Cc: Himanshu Jha 
Cc: Nuno Sá 
Reviewed-by: Alexandru Ardelean 
Link: https://lore.kernel.org/r/20210321182956.844652-1-jic23@kernel.org
Signed-off-by: Greg Kroah-Hartman

iio: accel: kxcjk1013: Add support for KIOX010A ACPI DSM for setting tablet-mode

2020-11-24T12:27:25+00:00

commit e5b1032a656e9aa4c7a4df77cb9156a2a651a5f9 upstream.

Some 360 degree hinges (yoga) style 2-in-1 devices use 2 KXCJ91008-s
to allow the OS to determine the angle between the display and the base
of the device, so that the OS can determine if the 2-in-1 is in laptop
or in tablet-mode.

On Windows both accelerometers are read by a special HingeAngleService
process; and this process calls a DSM (Device Specific Method) on the
ACPI KIOX010A device node for the sensor in the display, to let the
embedded-controller (EC) know about the mode so that it can disable the
kbd and touchpad to avoid spurious input while folded into tablet-mode.

This notifying of the EC is problematic because sometimes the EC comes up
thinking that device is in tablet-mode and the kbd and touchpad do not
work. This happens for example on Irbis NB111 devices after a suspend /
resume cycle (after a complete battery drain / hard reset without having
booted Windows at least once). Other 2-in-1s which are likely affected
too are e.g. the Teclast F5 and F6 series.

The kxcjk-1013 driver may seem like a strange place to deal with this,
but since it is *the* driver for the ACPI KIOX010A device, it is also
the driver which has access to the ACPI handle needed by the DSM.

Add support for calling the DSM and on probe unconditionally tell the
EC that the device is laptop mode, fixing the kbd and touchpad sometimes
not working.

Fixes: 7f6232e69539 ("iio: accel: kxcjk1013: Add KIOX010A ACPI Hardware-ID")
Reported-and-tested-by: russianneuromancer 
Signed-off-by: Hans de Goede 
Cc: 
Link: https://lore.kernel.org/r/20201110133835.129080-3-hdegoede@redhat.com
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman