AD4130-8 is an ultra-low power, high precision, measurement solution for
low bandwidth battery operated applications.
The fully integrated AFE (Analog Front-End) includes a multiplexer for up
to 16 single-ended or 8 differential inputs, PGA (Programmable Gain
Amplifier), 24-bit Sigma-Delta ADC, on-chip reference and oscillator,
selectable filter options, smart sequencer, sensor biasing and excitation
options, diagnostics, and a FIFO buffer.
V1 -> V2
* add kernel version to ABI file
* merge ABI patch into driver patch
* make copyright header similar to other drivers
* rearrange includes
* use units.h defines where possible and add unit sufix to
SOFT_RESET_SLEEP define
* remove ending comma to last members of enums / lists
* remove unused FILTER_MAX define
* use BIT macro for PIN_FN_*
* rearrange SETUP_SIZE definition
* group bools in ad4130_state and ad4130_chan_info
* put scale_tbls definition on one line
* remove newline before reg size == 0 check
* put mask used as value in a variable
* remove useless ret = 0 assignment
* make buffer attrs oneline
* use for_each_set_bit in update_scan_mode
* use if else for internal reference voltage error checking
* inline reference voltage check
* check number of vbias pins
* remove .has_int_pin = false
* remove avail_len for IIO_AVAIL_RANGE
* remove useless enabled_channels check in unlink_slot
* remove unused AD4130_RESET_CLK_COUNT define
* only call fwnode_handle_put for child in case of error
* default adi,reference-select to REFIN1
* default adi,int-ref-en to false
* of_irq_get_byname -> fwnode_irq_get_byname
* P1 -> P2 as interrupt pin options
* add missing comma in db3_freq_avail init
* cast values to u64 to make math using units.h work
* add datasheet reference to IRQ polarity
* add comment about disabling channels in predisable
* add part number prefix find_table_index
* return voltage from get_ref_voltage
* add datasheet reference for internal reference voltage selection
* add comment explaining AIN and GPIO pin sharing
* parse channel setup before parsing excitation pins
* only validate excitation pin if value is not off
* use FIELD_PREP for bipolar and int_ref_en
* put devm_regmap_init call on one line
* introduce a slot_info struct to contain setup_info for each slot
* enable internal reference automatically if needed
* decide mclk sel based on adi,ext-clk-freq and adi,int-clk-out
* dt-bindings: use internal reference explicitly
* dt-bindings: set type for adi,excitation-pin-0
* dt-bindings: set $ref for adi,vbias-pins
* dt-bindings: remove minItems from interrupts property
* dt-bindings: remove adi,int-ref-en default value
* dt-bindings: remove adi,bipolar default value
* dt-bindings: inline adi,int-ref-en description
* dt-bindings: default adi,reference-select to REFIN1
* dt-bindings: clean up description for diff-channels and
adi,reference-select
* dt-bindings: add more text to interrupt-names description
* dt-bindings: turn interrupt-names into a single string
* dt-bindings: add maxItems to adi,vbias-pins
V2 -> V3
* dt-bindings: add interrupt controller include to example
* dt-bindings: remove $ref in diff-channels
V3 -> V4:
* handle watermark value as number of datum
* DOUT_OR_INT -> INT
* AD4130_8_NAME -> AD4130_NAME
* return early in case of failure when parsing fw channel
* use IIO_DMA_MINALIGN for aligning buffer
* add comments for fs_to_freq and freq_to_fs
* remove support for other variants because of unavailability of model ids
for future chip variants
* remove support for db3 frequency because of inaccuracy when calculating
* remove ternary where possible
* refactor defines
* dt-bindings: add unevaluatedProperties: true to channel node
Cosmin Tanislav (2):
dt-bindings: iio: adc: add AD4130
iio: adc: ad4130: add AD4130 driver
.../ABI/testing/sysfs-bus-iio-adc-ad4130 | 36 +
.../bindings/iio/adc/adi,ad4130.yaml | 262 +++
MAINTAINERS | 8 +
drivers/iio/adc/Kconfig | 13 +
drivers/iio/adc/Makefile | 1 +
drivers/iio/adc/ad4130.c | 2015 +++++++++++++++++
6 files changed, 2335 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-ad4130
create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad4130.yaml
create mode 100644 drivers/iio/adc/ad4130.c
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2.36.1
