Message-ID: <20250228141327.262488-1-alisa.roman@analog.com>
Date: Fri, 28 Feb 2025 16:05:59 +0200
From: Alisa-Dariana Roman <alisadariana@...il.com>
To: Alisa-Dariana Roman <alisa.roman@...log.com>,
	"Rob Herring (Arm)" <robh@...nel.org>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Ramona Gradinariu <ramona.bolboaca13@...il.com>,
	David Lechner <dlechner@...libre.com>,
	linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org
Cc: Lars-Peter Clausen <lars@...afoo.de>,
	Michael Hennerich <Michael.Hennerich@...log.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jonathan Corbet <corbet@....net>
Subject: [PATCH v6 0/3] Add support for AD7191


v5: https://lore.kernel.org/all/20250226115451.249361-1-alisa.roman@analog.com/

v5 -> v6:
	- use GPL-2.0-only
	- remove kernel.h
	- remove unused macros
	- initialize local indexes
	- check number of gpio pins
	- use bitmap
	- inverse if condition and remove continue in 2 places
	- fit .compatible initialization in one line
	- change MODULE_IMPORT_NS() content to string
	- use iio_device_claim_direct()
	- refactor heading levels in docs

v4: https://lore.kernel.org/all/20250203133254.313106-1-alisa.roman@analog.com/

v4 -> v5:
	- use static arrays in the ad7191_config_setup function, instead of keeping
them in the state structure
	- added error checking for devicetree parsing of pga-value and odr-value
	- for now, it doesn't return error when the index corresponding to pga-value
or odr-value doesn't match, since index is initialized to 0, so it will use the
first value in this case (the bindings constrain the possbile values for these
2 properties, so I thought it's ok like this)
	- use gpiod_multi_set_value_cansleep()
	- move sampling frequency attribute to mask separate (the avail unmodified)
	- removed unused argument form ad7191_setup()
	- removed 2 redundant sections from docs, and renamed one to Devicetree
	- add ad7191.rst to MAINTAINERS

v3: https://lore.kernel.org/all/20250129143054.225322-1-alisa.roman@analog.com/

v3 -> v4:
	- addressed all replies for v3
	- refactored the scale and sampling frequencies configurations to use 2
different arrays for gpio case vs pinstrap case

v2: https://lore.kernel.org/all/20250122132821.126600-1-alisa.roman@analog.com/

v2 -> v3:
	- correct binding title
	- remove clksel_state and clksel_gpio, assume the clksel pin is always
pinstrapped
	- rephrase clocks description accordingly
	- simplify binding constraints
	- specify in binding description that PDOWN must be connected to SPI's
controller's CS
	- add minItems for gpios in bindings
	- make scope explicit for mutex guard
	- remove spi irq check
	- add id_table to spi_driver struct
	- changed comments as suggested
	- use spi_message_init_with_transfers()
	- default returns an error in ad7191_set_mode()
	- replace hard-coded 2 with st->pga_gpios->ndescs
	- use gpiod_set_array_value_cansleep()
	- change .storagebits to 32
	- check return value for ad_sd_init()
	- change to adi,odr-value and adi,pga-value, which now accepts the value as
suggested
	- modify variables names and refactor the setup of odr and pga gpios,
indexes and available arrays into ad7191_config_setup(), since they are all
related
	- add ad7191.rst

v1: https://lore.kernel.org/all/20241221155926.81954-1-alisa.roman@analog.com/

v1 -> v2:
	- removed patch adding function in ad_sigma_delta.h/.c
	- added a function set_cs() for asserting/deasserting the cs
	- handle pinstrapping cases
	- refactored all clock handling
	- updated bindings: corrected and added new things
	- -> address of the channels is used in set_channel()
	- addressed all the other changes

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