BMC/Intel-BMC/linux.git/drivers/iio/pressure, branch dev-4.4

iio:st_pressure: fix sampling gains (bring inline with ABI)

2016-07-27T16:47:36+00:00

commit d43a41152f8e9e4c0d19850884d1fada076dee10 upstream. Temperature channels report scaled samples in Celsius although expected as milli degree Celsius in Documentation/ABI/testing/sysfs-bus-iio. Gains are not implemented at all for LPS001WP pressure and temperature channels. This patch ensures that proper offsets and scales are exposed to userpace for both pressure and temperature channels. Also fix a NULL pointer exception when userspace reads content of sysfs scale attribute when gains are not defined. Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: pressure: mpl115: fix temperature offset sign

2016-02-25T20:01:17+00:00

commit 431386e783a3a6c8b7707bee32d18c353b8688b2 upstream. According to the datasheet, the resolusion of temperature sensor is -5.35 counts/C. Temperature ADC is 472 counts at 25C. (https://www.sparkfun.com/datasheets/Sensors/Pressure/MPL115A1.pdf NOTE: This is older revision, but this information is removed from the latest datasheet from nxp somehow) Temp [C] = (Tadc - 472) / -5.35 + 25 = (Tadc - 605.750000) * -0.186915888 So the correct offset is -605.750000. Signed-off-by: Akinobu Mita Acked-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

Merge tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2015-11-05T21:15:12+00:00

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 ...

spi: Drop owner assignment from spi_drivers

2015-10-28T01:30:17+00:00

An spi_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Andrew F. Davis Acked-by: Jonathan Cameron Signed-off-by: Mark Brown

Add ms8607 meas-spec driver support

2015-10-11T09:21:21+00:00

Support for MS8607 temperature, pressure & humidity sensor. This part is using functions from MS5637 for temperature and pressure and HTU21 for humidity Signed-off-by: Ludovic Tancerel Signed-off-by: Jonathan Cameron

Add ms5637 meas-spec driver support

2015-10-11T09:21:20+00:00

Support for MS5637 temperature & pressure sensor Signed-off-by: Ludovic Tancerel Signed-off-by: Jonathan Cameron

iio: st_sensors: add debugfs register read hook

2015-08-16T09:51:25+00:00

This adds a debugfs hook to read/write registers in the ST sensors using debugfs. Proved to be awesome help when trying to debug why IRQs do not arrive. Signed-off-by: Linus Walleij Acked-by: Denis Ciocca Signed-off-by: Jonathan Cameron

iio: st-sensors: add configuration for WhoAmI address

2015-07-23T19:43:04+00:00

This patch permits to configure the WhoAmI register address because some device could have not a standard address for this register. Signed-off-by: Giuseppe Barba Reviewed-by: Denis Ciocca Acked-by: Denis Ciocca Signed-off-by: Jonathan Cameron

iio: Drop owner assignment from i2c_driver

2015-07-11T17:50:07+00:00

i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Jonathan Cameron

iio: pressure: ms5611: add support for MS5607 temperature and pressure sensor

2015-07-05T13:34:00+00:00

MS5607 is temperature and pressure sensor which hardware is similar to MS5611. Both sensors share command protocol and support both I2C and SPI serial protocols. They only differ in compensation algorithms. Signed-off-by: Tomasz Duszynski Signed-off-by: Jonathan Cameron