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linux-stable/drivers/iio
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Alexandru Tachici 7b8d045e49 iio: adc: ad7124: allow more than 8 channels 
Currently AD7124-8 driver cannot use more than 8 IIO channels
because it was assigning the channel configurations bijectively
to channels specified in the device-tree. This is not possible
to do when using more than 8 channels as AD7124-8 has only 8
configuration registers.

To allow the user to use all channels at once the driver
will keep in memory configurations for all channels but
will program only 8 of them at a time on the device.
If multiple channels have the same configuration, only
one configuration register will be used. If there
are more configurations than available registers only
the last 8 used configurations will be allowed to exist
on the device in a LRU fashion.

Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20210311091154.47785-2-alexandru.tachici@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:50 +00:00
..
accel iio: Remove kernel-doc keyword in file header comment 2021-03-25 19:13:49 +00:00
adc iio: adc: ad7124: allow more than 8 channels 2021-03-25 19:13:50 +00:00
afe iio: afe: iio-rescale: Simplify with dev_err_probe() 2020-09-03 19:40:50 +01:00
amplifiers iio: amplifiers: hmc425a: Simplify with dev_err_probe() 2020-09-03 19:40:50 +01:00
buffer iio: kfifo: mask flags without zero-check in devm_iio_kfifo_buffer_setup() 2021-03-25 19:13:49 +00:00
chemical iio: chemical: bmp680: Drop unneeded explicit castings 2021-03-25 19:13:50 +00:00
common iio: Add relative sensitivity support 2021-03-11 20:47:09 +00:00
dac iio: dac: ad5686: Add support for AD5673R/AD5677R 2021-03-11 20:47:10 +00:00
dummy iio: dummy: iio_simple_dummy_buffer: use triggered buffer core calls 2021-03-11 20:47:05 +00:00
frequency iio: frequency: adf4350: Remove redundant null check before clk_disable_unprepare 2021-01-09 21:52:46 +00:00
gyro iio: hid-sensors: Move get sensitivity attribute to hid-sensor-common 2021-03-11 20:47:09 +00:00
health iio: make use of devm_iio_kfifo_buffer_setup() helper 2021-03-11 20:47:01 +00:00
humidity iio: Remove kernel-doc keyword in file header comment 2021-03-25 19:13:49 +00:00
imu iio: imu: st_lsm6dsx: Drop unneeded explicit castings 2021-03-25 19:13:50 +00:00
light iio: light: gp2ap002: Drop unneeded explicit casting 2021-03-25 19:13:50 +00:00
magnetometer iio: hid-sensors: Move get sensitivity attribute to hid-sensor-common 2021-03-11 20:47:09 +00:00
multiplexer iio: multiplexer: iio-mux: Simplify with dev_err_probe() 2020-09-03 19:40:51 +01:00
orientation hid-sensors: Add more data fields for sensitivity checking 2021-03-11 20:47:09 +00:00
position iio: hid-sensors: Move get sensitivity attribute to hid-sensor-common 2021-03-11 20:47:09 +00:00
potentiometer iio: use getter/setter functions 2021-03-11 20:47:07 +00:00
potentiostat iio:potentiostat:lmp91000: Drop of_match_ptr and use generic fw accessors 2020-09-21 18:41:29 +01:00
pressure hid-sensors: Add more data fields for sensitivity checking 2021-03-11 20:47:09 +00:00
proximity iio: proximity: Add a ChromeOS EC MKBP proximity driver 2021-03-25 19:13:50 +00:00
resolver iio:resolver:ad2s1200: Drop of_match_ptr protection 2020-09-21 18:41:31 +01:00
temperature iio: hid-sensors: Move get sensitivity attribute to hid-sensor-common 2021-03-11 20:47:09 +00:00
test iio: Add basic unit test for iio_format_value() 2021-03-11 20:47:00 +00:00
trigger iio: Remove kernel-doc keyword in file header comment 2021-03-25 19:13:49 +00:00
iio_core.h iio: buffer: add ioctl() to support opening extra buffers for IIO device 2021-03-11 20:47:05 +00:00
iio_core_trigger.h iio: core-trigger: make iio_device_register_trigger_consumer() an int return 2021-03-11 20:47:02 +00:00
industrialio-buffer.c iio: buffer: add ioctl() to support opening extra buffers for IIO device 2021-03-11 20:47:05 +00:00
industrialio-configfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-core.c iio: Add relative sensitivity support 2021-03-11 20:47:09 +00:00
industrialio-event.c iio: add reference to iio buffer on iio_dev_attr 2021-03-11 20:47:04 +00:00
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 iio: core: rework iio device group creation 2021-03-11 20:47:03 +00:00
industrialio-triggered-event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inkern.c iio: provide of_iio_channel_get_by_name() and devm_ version it 2021-01-16 18:27:51 +00:00
Kconfig iio: Add basic unit test for iio_format_value() 2021-03-11 20:47:00 +00:00
Makefile iio: Add basic unit test for iio_format_value() 2021-03-11 20:47:00 +00:00
TODO iio: add a TODO 2020-03-08 17:28:53 +00:00