linux-stable.git/drivers/iio, branch v4.9.41

iio: imu: inv_mpu6050: add accel lpf setting for chip >= MPU6500

2017-06-24T05:11:17+00:00

commit 948588e25b8af5e66962ed3f53e1cae1656fa5af upstream.

Starting from MPU6500, accelerometer dlpf is set in a separate
register named ACCEL_CONFIG_2.
Add this new register in the map and set it for the corresponding
chips.

Signed-off-by: Jean-Baptiste Maneyrol 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adc: ti_am335x_adc: allocating too much in probe

2017-06-24T05:11:15+00:00

commit 5ba5b437efaa7a502eec393c045d3bf90c92c4e9 upstream.

We should be allocating enough information for a tiadc_device struct
which is about 400 bytes but instead we allocate enough for a second
iio_dev struct which is over 2000 bytes.

Fixes: fea89e2dfcea ("iio: adc: ti_am335x_adc: use variable names for sizeof() operator")
Signed-off-by: Dan Carpenter 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: proximity: as3935: recalibrate RCO after resume

2017-06-24T05:11:14+00:00

commit 6272c0de13abf1480f701d38288f28a11b4301c4 upstream.

According to the datasheet the RCO must be recalibrated
on every power-on-reset. Also remove mutex locking in the
calibration function since callers other than the probe
function (which doesn't need it) will have a lock.

Fixes: 24ddb0e4bba4 ("iio: Add AS3935 lightning sensor support")
Cc: George McCollister 
Signed-off-by: Matt Ranostay 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: st_pressure: Fix data sign

2017-06-24T05:11:14+00:00

commit 1b211d48abaa0e12e6e6177c0316ff55d11fdfce upstream.

Datasheet of each device (lps331ap, lps25h, lps001wp, lps22hb) says that
the pressure and temperature data is a 2's complement.

I'm sending this the slow way, as negative pressures on these are pretty
unusual and the nature of the fixing of multiple device introduction patches
will make it hard to apply to older kernels - Jonathan.

Fixes: 217494e5b780 ("iio:pressure: Add STMicroelectronics pressures driver")
Fixes: 2f5effcbd097 ("iio: pressure-core: st: Expand and rename LPS331AP's channel descriptor")
Fixes: 7885a8ce6800 ("iio: pressure: st: Add support for new LPS001WP pressure sensor")
Fixes: e039e2f5b4da ("iio:st_pressure:initial lps22hb sensor support")
Signed-off-by: Marcin Niestroj 
Reviewed-by: Linus Walleij 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: proximity: as3935: fix iio_trigger_poll issue

2017-06-14T13:05:59+00:00

commit 9122b54f266ddee09654fe3fbc503c1a60f4a01c upstream.

Using iio_trigger_poll() can oops when multiple interrupts
happen before the first is handled.

Use iio_trigger_poll_chained() instead and use the timestamp
when processed, since it will be in theory be 2 ms max latency.

Fixes: 24ddb0e4bba4 ("iio: Add AS3935 lightning sensor support")
Signed-off-by: Matt Ranostay 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: proximity: as3935: fix AS3935_INT mask

2017-06-14T13:05:59+00:00

commit 275292d3a3d62670b1b13484707b74e5239b4bb0 upstream.

AS3935 interrupt mask has been incorrect so valid lightning events
would never trigger an buffer event. Also noise interrupt should be
BIT(0).

Fixes: 24ddb0e4bba4 ("iio: Add AS3935 lightning sensor support")
Signed-off-by: Matt Ranostay 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: light: ltr501 Fix interchanged als/ps register field

2017-06-14T13:05:59+00:00

commit 7cc3bff4efe6164a0c8163331c8aa55454799f42 upstream.

The register mapping for the IIO driver for the Liteon Light and Proximity
sensor LTR501 interrupt mode is interchanged (ALS/PS).
There is a register called INTERRUPT register (address 0x8F)
Bit 0 represents PS measurement trigger.
Bit 1 represents ALS measurement trigger.
This two bit fields are interchanged within the driver.
see datasheet page 24:
http://optoelectronics.liteon.com/upload/download/DS86-2012-0006/S_110_LTR-501ALS-01_PrelimDS_ver1%5B1%5D.pdf

Signed-off-by: Franziska Naepelt 
Fixes: 7ac702b3144b6 ("iio: ltr501: Add interrupt support")
Acked-by: Peter Meerwald-Stadler 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adc: bcm_iproc_adc: swap primary and secondary isr handler's

2017-06-14T13:05:59+00:00

commit f7d86ecf83cb66d3c4c6ac4edb1dd50c0919aa2b upstream.

The third argument of devm_request_threaded_irq() is the primary
handler. It is called in hardirq context and checks whether the
interrupt is relevant to the device. If the primary handler returns
IRQ_WAKE_THREAD, the secondary handler (a.k.a. handler thread) is
scheduled to run in process context.

bcm_iproc_adc.c uses the secondary handler as the primary one
and the other way around. So this patch fixes the same, along with
re-naming the secondary handler and primary handler names properly.

Tested on the BCM9583XX iProc SoC based boards.

Fixes: 4324c97ecedc ("iio: Add driver for Broadcom iproc-static-adc")
Reported-by: Pavel Roskin 
Signed-off-by: Raveendra Padasalagi 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: hid-sensor: Store restore poll and hysteresis on S3

2017-05-25T13:44:41+00:00

commit 5d9854eaea776441b38a9a45b4e6879524c4f48c upstream.

This change undo the change done by 'commit 3bec24747446
("iio: hid-sensor-trigger: Change get poll value function order to avoid
sensor properties losing after resume from S3")' as this breaks some
USB/i2c sensor hubs.

Instead of relying on HW for restoring poll and hysteresis, driver stores
and restores on resume (S3). In this way user space modified settings are
not lost for any kind of sensor hub behavior.

In this change, whenever user space modifies sampling frequency or
hysteresis driver will get the feature value from the hub and store in the
per device hid_sensor_common data structure. On resume callback from S3,
system will set the feature to sensor hub, if user space ever modified the
feature value.

Fixes: 3bec24747446 ("iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3")
Reported-by: Ritesh Raj Sarraf 
Tested-by: Ritesh Raj Sarraf 
Tested-by: Song, Hongyan 
Signed-off-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: proximity: as3935: fix as3935_write

2017-05-25T13:44:41+00:00

commit 84ca8e364acb26aba3292bc113ca8ed4335380fd upstream.

AS3935_WRITE_DATA macro bit is incorrect and the actual write
sequence is two leading zeros.

Cc: George McCollister 
Signed-off-by: Matt Ranostay 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman