linux/drivers/iio
Vignesh R 4b3ab9372f iio: adc: ti_am335x_tscadc: Improve accuracy of measurement
When performing single ended measurements with TSCADC, its recommended
to set negative input (SEL_INM_SWC_3_0) of ADC step to ADC's VREFN in the
corresponding STEP_CONFIGx register.

Also, the positive(SEL_RFP_SWC_2_0) and negative(SEL_RFM_SWC_1_0)
reference voltage for ADC step needs to be set to VREFP and VREFN
respectively in STEP_CONFIGx register.
Without these changes, there may be variation of as much as ~2% in the
ADC's digital output which is bad for precise measurement.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-12-03 11:33:20 +00:00
..
accel iio: adxl372: Add support for I2C communication 2018-09-08 15:54:38 +01:00
adc iio: adc: ti_am335x_tscadc: Improve accuracy of measurement 2018-12-03 11:33:20 +00:00
afe iio: afe: rescale: new driver 2018-04-28 18:03:22 +01:00
amplifiers drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
buffer iio:kfifo_buf: check for uint overflow 2018-03-30 11:16:12 +01:00
chemical iio: chemical: bme680: Remove field value defines 2018-08-25 09:13:45 +01:00
common iio: change strncpy+truncation to strlcpy 2018-07-15 11:38:06 +01:00
counter iio: 104-quad-8: Provide defines for magic numbers 2018-06-10 11:52:30 +01:00
dac iio: ad5064: Fix regulator handling 2018-09-29 13:28:47 +01:00
dummy iio:dummy: Add extra paragraphs on Kconfig 2018-03-03 15:20:16 +00:00
frequency iio: Convert to using %pOFn instead of device_node.name 2018-09-02 18:54:31 +01:00
gyro iio: Replace occurrences of magic number 0 by IIO_CHAN_INFO_RAW 2018-03-07 20:14:36 +00:00
health iio: health: max30102: Mark expected switch fall-throughs 2018-08-19 17:21:35 +01:00
humidity iio: add SPDX identifier for various drivers 2018-02-18 11:55:19 +00:00
imu Merge 4.19-rc4 into staging-next 2018-09-16 22:04:13 +02:00
light Staging/IIO patches for 4.20-rc1 2018-10-29 10:38:10 -07:00
magnetometer iio: magnetometer: hmc5843: Fixed a comment error. 2018-09-22 10:23:51 +01:00
multiplexer iio: multiplexer: switch to SPDX license identifier 2018-08-20 19:28:26 +01:00
orientation
potentiometer iio: potentiometer: mcp4531: switch to SPDX license identifier 2018-08-20 19:26:25 +01:00
potentiostat iio: potentiostat: lmp91000: add LMP91002 support 2018-05-12 11:02:44 +01:00
pressure iio: pressure: ms5611: switch to SPDX identifier 2018-09-08 15:04:02 +01:00
proximity iio: proximity: Add driver support for ST's VL53L0X ToF ranging sensor. 2018-09-22 16:42:56 +01:00
resolver staging: iio: ad2s1200: Move driver out of staging 2018-05-20 12:17:48 +01:00
temperature Merge remote-tracking branches 'regmap/topic/noinc' and 'regmap/topic/single-rw' into regmap-next 2018-10-21 12:07:26 +01:00
trigger drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
iio_core_trigger.h
iio_core.h the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
industrialio-buffer.c First round of IIO fixes for the 4.16 cycle. 2018-02-20 10:03:22 +01:00
industrialio-configfs.c iio: make function argument and some structures const 2017-10-19 16:15:24 +02:00
industrialio-core.c iio: Add modifier for DUV light 2018-07-23 19:18:10 +01:00
industrialio-event.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
industrialio-sw-device.c iio: make function argument and some structures const 2017-10-19 16:15:24 +02:00
industrialio-sw-trigger.c iio: make function argument and some structures const 2017-10-19 16:15:24 +02:00
industrialio-trigger.c
industrialio-triggered-event.c
inkern.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
Kconfig staging: iio: ad2s1200: Move driver out of staging 2018-05-20 12:17:48 +01:00
Makefile staging: iio: ad2s1200: Move driver out of staging 2018-05-20 12:17:48 +01:00