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linux/drivers/iio
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Andrea Merello c270bbf7bb iio: ad7949: kill pointless "readback"-handling code 
The device could be configured to spit out also the configuration word
while reading the AD result value (in the same SPI xfer) - this is called
"readback" in the device datasheet.

The driver checks if readback is enabled and it eventually adjusts the SPI
xfer length and it applies proper shifts to still get the data, discarding
the configuration word.

The readback option is actually never enabled (the driver disables it), so
the said checks do not serve for any purpose.

Since enabling the readback option seems not to provide any advantage (the
driver entirely sets the configuration word without relying on any default
value), just kill the said, unused, code.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-09-15 11:25:21 +01:00
..
accel iio: accel: kxcjk1013: Improve comments on KIOX010A and KIOX020A ACPI ids 2019-08-18 18:50:56 +01:00
adc iio: ad7949: kill pointless "readback"-handling code 2019-09-15 11:25:21 +01:00
afe treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
amplifiers Second set of IIO device support, features, cleanups and minor fixes for 5.3. 2019-07-01 10:58:13 +02:00
buffer treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
chemical treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
common iio: hid-sensor-attributes: Fix divisions for 32-bit platforms 2019-09-06 08:09:34 +02:00
dac iio: dac: ad5380: fix incorrect assignment to val 2019-09-03 18:55:50 +01:00
dummy treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
frequency iio: frequency: adf4371: Fix output frequency setting 2019-08-05 17:38:33 +01:00
gyro iio:st_sensors: remove buffer allocation at each buffer enable 2019-08-11 09:26:04 +01:00
health treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
humidity iio: humidity: Use device-managed APIs 2019-07-27 22:52:06 +01:00
imu iio: imu: st_lsm6dsx: rely on IIO_G_TO_M_S_2 for gain definition for LSM9DS1 2019-09-03 21:11:28 +01:00
light iio: light: bh1750: Resolve compiler warning and make code more readable 2019-09-15 10:47:02 +01:00
magnetometer iio:st_sensors: remove buffer allocation at each buffer enable 2019-08-11 09:26:04 +01:00
multiplexer treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
orientation treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 309 2019-06-05 17:37:04 +02:00
potentiometer iio: potentiometer: add a driver for Maxim 5432-5435 2019-08-05 14:25:08 +01:00
potentiostat treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
pressure iio:st_sensors: remove buffer allocation at each buffer enable 2019-08-11 09:26:04 +01:00
proximity Kconfig: Fix the reference to the RFD77402 ToF sensor in the 'help' section 2019-08-25 19:08:36 +01:00
resolver treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
temperature iio: maxim_thermocouple: Use device-managed APIs 2019-07-27 22:52:06 +01:00
trigger IIO: stm32: Remove quadrature related functions from trigger driver 2019-07-27 20:11:18 +01:00
iio_core.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
iio_core_trigger.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-buffer.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-configfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-core.c Staging / IIO driver update for 5.3-rc1 2019-07-11 15:36:02 -07:00
industrialio-event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-sw-device.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-sw-trigger.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-trigger.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-triggered-event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inkern.c Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
Kconfig Second set of IIO device support, features, cleanups and minor fixes for 5.3. 2019-07-01 10:58:13 +02:00
Makefile counter: stm32-lptimer: add counter device 2019-04-25 21:33:41 +02:00