linux-kernel - Add driver for veml6030 ambient light sensor

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Date:   Wed, 18 Sep 2019 08:36:20 +0530
From:   Rishi Gupta <gupt21@...il.com>
To:     jic23@...nel.org
Cc:     knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
        gregkh@...uxfoundation.org, tglx@...utronix.de,
        allison@...utok.net, alexios.zavras@...el.com, angus@...ea.ca,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Add driver for veml6030 ambient light sensor 

The veml6030 is an ambient light sensor from vishay and
is a different hardware from an existing hardware for which
driver currently exist, therefore this driver submission.

* All features; ALS, white channel and power management is
  supported.

* All configurable parameters are supported through standard
  iio sysfs entries. User space can get valid values of any
  parameter (xx_available) and then can write to appropriate
  sysfs entry.

* User space can get ALS and White channel readings through RAW
  IIO interface.

* IIO events are used to notify application whenever threshold
  is crossed. This uses IRQ pin of veml6030.

* Some registers in veml6030 are read only. For these registers
  read callback returns error to user space.

There are 2 patches for this submission:
[PATCH 1/2] iio: light: add driver for veml6030 ambient light sensor
[PATCH 2/2] dt-bindings: iio: light: add veml6030 ALS bindings

Regards,
Rishi