Add LTRF216A Driver [LWN.net]

From:		Shreeya Patel <shreeya.patel-AT-collabora.com>
To:		jic23-AT-kernel.org, lars-AT-metafoo.de, robh+dt-AT-kernel.org, Zhigang.Shi-AT-liteon.com, krzk-AT-kernel.org, krisman-AT-collabora.com
Subject:		[PATCH v3 0/3] Add LTRF216A Driver
Date:		Tue, 03 May 2022 20:13:51 +0530
Message-ID:		<20220503144354.75438-1-shreeya.patel@collabora.com>
Cc:		linux-iio-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, kernel-AT-collabora.com, alvaro.soliverez-AT-collabora.com, Shreeya Patel <shreeya.patel-AT-collabora.com>
Archive-link:		Article

This patchset adds support for ltrf216a Ambient Light Sensor
and documents the DT bindings for the same.


Changes in v3
  - Use u16 instead of u8 for int_time_fac
  - Reorder headers in ltrf216a.c file
  - Remove int_time_mapping table and use int_time_available
  - Fix indentation in the bindings file.

Changes in v2
  - Add support for 25ms and 50ms integration time.
  - Rename some of the macros as per names given in datasheet
  - Add a comment for the mutex lock
  - Use read_avail callback instead of attributes and set the
    appropriate _available bit.
  - Use FIELD_PREP() at appropriate places.
  - Add a constant lookup table for integration time and reg val
  - Use BIT() macro for magic numbers.
  - Improve error handling at few places.
  - Use get_unaligned_le24() and div_u64()
  - Use probe_new() callback and devm functions
  - Return errors in probe using dev_err_probe()
  - Use DEFINE_SIMPLE_DEV_PM_OPS()
  - Correct the formula for lux to use 0.45 instead of 0.8
  - Add interrupt and power supply property in DT bindings
  - Add vendor prefix name as per the alphabetical order.


Shreeya Patel (3):
  dt-bindings: vendor-prefixes: Add 'ltr' as deprecated vendor prefix
  dt-bindings: Document ltrf216a light sensor bindings
  iio: light: Add support for ltrf216a sensor

 .../bindings/iio/light/liteon,ltrf216a.yaml   |  51 +++
 .../devicetree/bindings/vendor-prefixes.yaml  |   3 +
 drivers/iio/light/Kconfig                     |  10 +
 drivers/iio/light/Makefile                    |   1 +
 drivers/iio/light/ltrf216a.c                  | 343 ++++++++++++++++++
 5 files changed, 408 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml
 create mode 100644 drivers/iio/light/ltrf216a.c

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2.30.2