BMC/Intel-BMC/linux.git/drivers/iio, branch dev-4.17

Merge tag 'v4.17.7' into dev-4.17

2018-07-18T04:32:13+00:00

This is the 4.17.7 stable release Signed-off-by: Joel Stanley

iio: mma8452: Fix ignoring MMA8452_INT_DRDY

2018-07-08T13:32:17+00:00

commit b02ec67a8e38875cdc5f9214be885022f11c0017 upstream. Interrupts are ignored if no event bit is set in the status status register and this breaks the buffer interface. No data is shown when running "iio_generic_buffer -n mma8451 -a" and interrupt counts go crazy. Fix by not returning IRQ_NONE if DRDY is set. Fixes: 605f72de137a ("iio: accel: mma8452: improvements to handle multiple events") Signed-off-by: Leonard Crestez cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

Merge tag 'v4.17.4' into dev-4.17

2018-07-05T01:41:27+00:00

This is the 4.17.4 stable release Signed-off-by: Joel Stanley

iio: sca3000: Fix an error handling path in 'sca3000_probe()'

2018-07-03T09:27:00+00:00

commit 4a5b45383ca371e123ba103d34d4b3b87616245c upstream. Use 'devm_iio_kfifo_allocate()' instead of 'iio_kfifo_allocate()' in order to simplify code and avoid a memory leak in an error path in 'sca3000_probe()'. A call to 'sca3000_unconfigure_ring()' was missing. Sent via the next merge window as unimportant bug and there are other patches dependent on it. Signed-off-by: Christophe JAILLET Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: adc: ad7791: remove sample freq sysfs attributes

2018-07-03T09:27:00+00:00

commit 7eb6b35d93c356f1afebbfb808bc296d6351e708 upstream. In the current state, these attributes are broken, because they are registered already, and the kernel throws a warning. The first registration happens via the `IIO_CHAN_INFO_SAMP_FREQ` flag from the `ad_sigma_delta` driver. In this commit these attrs are removed, and in the following the IIO_CHAN_INFO_SAMP_FREQ behavior will be implemented, which replaces these hooks. This is done to make things a bit easier to review as there is a bit of overlap in the patch if it's done all at once. Fixes: a13e831fcaa7 ("staging: iio: ad7192: implement IIO_CHAN_INFO_SAMP_FREQ") Signed-off-by: Alexandru Ardelean Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: dps310: Temperature measurement errata

2018-06-19T03:05:38+00:00

Add a manufacturer's suggested workaround to deal with early revisions of chip that don't indicate correct temperature. Readings can be in the ~60C range when they should be in the ~20's. OpenBMC-Staging-Count: 3 Signed-off-by: Christopher Bostic Signed-off-by: Joel Stanley

iio: Add driver for Infineon DPS310

2018-06-19T03:05:38+00:00

The DPS310 is a temperature and pressure sensor. It can be accessed over i2c and SPI. This driver supports polled measurement of temperature over i2c only. OpenBMC-Staging-Count: 3 Signed-off-by: Joel Stanley

Merge tag 'iio-fixes-for-4.17a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

2018-05-09T15:08:29+00:00

Jonathan writes: First round of IIO fixes for the 4.17 cycle. * core - fix up some issues with overflow etc around wrong types for some fo the kfifo handling functions. Seems unlikely this would be triggered in reality but the fixes are simple so let's tidy them up. Second patch deals with checking the userspace value passed for length for potential overflow. * ad7793 - Catch up with changes to the ad_sigma_delta core and use read_raw / write_raw iwth IIO_CHAN_INFO_SAMP_FEW to handle sampling frequency control. * at91-sama5d2 - Channel config for differential channels was completely broken. - Missing Kconfig dependency for buffer support. * hid-sensor - Fix an issue with powering up after resume due to wrong reference counting. * stm32-dfsdm - Fix an issue with second writes of the oversampling settings failing. - Fix an issue with the sample rate being set to half of requested value when particular clock source is used.

iio: adc: select buffer for at91-sama5d2_adc

2018-04-21T14:57:10+00:00

We need to select the buffer code, otherwise we get build errors with undefined functions on the trigger and buffer, if we select just IIO and then AT91_SAMA5D2_ADC from menuconfig This adds a Kconfig 'select' statement like other ADC drivers have it already. Fixes: 5e1a1da0f8c9 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer support") Signed-off-by: Eugen Hristev Cc: Signed-off-by: Jonathan Cameron

iio: hid-sensor-trigger: Fix sometimes not powering up the sensor after resume

2018-04-21T14:52:35+00:00

hid_sensor_set_power_work() powers the sensors back up after a resume based on the user_requested_state atomic_t. But hid_sensor_power_state() treats this as a boolean flag, leading to the following problematic scenario: 1) Some app starts using the iio-sensor in buffered / triggered mode, hid_sensor_data_rdy_trigger_set_state(true) gets called, setting user_requested_state to 1. 2) Something directly accesses a _raw value through sysfs, leading to a call to hid_sensor_power_state(true) followed by hid_sensor_power_state(false) call, this sets user_requested_state to 1 followed by setting it to 0. 3) Suspend/resume the machine, hid_sensor_set_power_work() now does NOT power the sensor back up because user_requested_state (wrongly) is 0. Which stops the app using the sensor in buffered mode from receiving any new values. This commit changes user_requested_state to a counter tracking how many times hid_sensor_power_state(true) was called instead, fixing this. Cc: Bastien Nocera Cc: Srinivas Pandruvada Signed-off-by: Hans de Goede Acked-by: Srinivas Pandruvada Cc: Signed-off-by: Jonathan Cameron