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path: root/drivers/iio/adc/ina2xx-adc.c
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2016-07-03iio: adc: add missing of_node references to iio_devMatt Ranostay1-0/+1
Adding missing indio_dev->dev.of_node references to allow iio consumers to access the device channels. Signed-off-by: Matt Ranostay <mranostay@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30iio:core: timestamping clock selection supportGregor Boirie1-3/+3
Adds a new per-device sysfs attribute "current_timestamp_clock" to allow userspace to select a particular POSIX clock for buffered samples and events timestamping. Following clocks, as listed in clock_gettime(2), are supported: CLOCK_REALTIME, CLOCK_MONOTONIC, CLOCK_MONOTONIC_RAW, CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_COARSE, CLOCK_BOOTTIME and CLOCK_TAI. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Acked-by: Sanchayan Maity <maitysanchayan@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-03iio: ina2xx-adc: fix scale for VShuntMarc Titinger1-2/+2
The scale would result in uV instead of expected mV. Mostly cosmetic, since the value of 'Power' was computed OK. Signed-off-by: Marc Titinger <marc.titinger@baylibre.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-03-21iio: ina2xx-adc: update the CALIB. register when RShunt changesMarc Titinger1-15/+24
The user (or an init script) may setup RShunt via sysfs after the driver was initialized, for instance based on the EEPROM contents of a modular probe. The calibration register must be set accordingly. Signed-off-by: Marc Titinger <marc.titinger@baylibre.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-24iio: ina2xx: Remove trace_printk debug statmentsAndrew F. Davis1-14/+7
These are generally for devlopment use only, remove these from performance-critical code, convert to dev_dbg elswhere. Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-24iio: ina2xx: Fix whitespace and re-order codeAndrew F. Davis1-69/+65
Group of probably overly rigorous whitespace and code cleanups. - Alphabetize includes - Assign to variables in the order they are defined - Alignment issues - Group alike statements together - Use helper macros Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-22iio: adc: ina2xx: Fix incorrect report of data endianness to userspace.Jonathan Cameron1-1/+1
This was extracted from a reposting of the driver after it had been applied to the IIO tree. I have fast tracked it as the driver will be in 4.5 and it would be nice to fix this trivial issue before it is. Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-19iio: ina2xx: fix channel order in software bufferMarc Titinger1-2/+2
POWER and CURRENT were swapped out in the buffer: was current2 and power3, correct order is power2 and current3. Signed-off-by: Marc Titinger <mtitinger@baylibre.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-12iio: ina2xx: give the capture kthread a more useful name string.Marc Titinger1-1/+2
PID PPID USER STAT VSZ %VSZ %CPU COMMAND 144 2 root DW 0 0% 33% [ina226:1-8800us] 141 2 root DW 0 0% 25% [ina226:0-8800us] 40 2 root SW 0 0% 15% [irq/156-4802a00] 147 2 root DW 0 0% 7% [ina226:2-8800us] 145 1 root S 1236 0% 6% dd if /dev/iio:device1 of /dev/null 148 1 root S 1236 0% 4% dd if /dev/iio:device2 of /dev/null 149 137 root R 1244 0% 3% top -d 1 142 1 root S 1236 0% 2% dd if /dev/iio:device0 of /dev/null Signed-off-by: Marc Titinger <mtitinger@baylibre.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-12iio: ina2xx: re-instate a sysfs show/store for the shunt resistor valueMarc Titinger1-6/+46
Different probe modules use different resistor values. The front-end application may read a probe ID (from eeprom) and set the shunt value accordingly. Signed-off-by: Marc Titinger <mtitinger@baylibre.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-12iio: ina2xx: provide a sysfs parameter to allow async readout of the ADCsMarc Titinger1-9/+45
This can lead to repeated or skipped samples depending on the clock beat between the capture thread and the chip sampling clock, but will also spare reading/waiting for the Capture Ready Flag and improve the available i2c bandwidth for reading measurements. Output of iio_info: ...snip... 4 device-specific attributes found: attr 0: in_oversampling_ratio value: 4 attr 1: in_allow_async_readout value: 0 attr 2: integration_time_available value: 140 204 332 588 1100 2116... attr 3: in_sampling_frequency value: 114 Signed-off-by: Marc Titinger <mtitinger@baylibre.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-12iio: ina2xx: add support for TI INA2xx Power MonitorsMarc Titinger1-0/+668
in SOFTWARE buffer mode, a kthread will capture the active scan_elements into a kfifo, then compute the remaining time until the next capture tick and do an active wait (udelay). This will produce a stream of up to fours channels plus a 64bits timestamps (ns). Tested with ina226, on BeagleBoneBlack. Datasheet: http://www.ti.com/lit/gpn/ina226 Signed-off-by: Marc Titinger <mtitinger@baylibre.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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