linux-kernel - [PATCH v4 0/7] iio: potentiometer: Add support for DS3502

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Message-Id: <20220220024632.4183-1-jagathjog1996@gmail.com>
Date:   Sun, 20 Feb 2022 08:16:25 +0530
From:   Jagath Jog J <jagathjog1996@...il.com>
To:     jic23@...nel.org, lars@...afoo.de, andy.shevchenko@...il.com,
        sst@...zta.fm, robh+dt@...nel.org
Cc:     linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v4 0/7] iio: potentiometer: Add support for DS3502

Add dt-bindings and support for Maxim DS3502 into existing ds1803 driver.
DS3502 is a 7 bit Nonvolatile Digital Potentiometer.

Changes since v3:
1. Dropped the chip type switch statement in read_raw function.
2. Added device specific read function pointer in their structure.
3. Added two separate functions to read values from two different types
   of devices.

Changes since v2:
1. Addressed Andy Shevchenko comments.
2. Adding device name in Kconfig file.
3. Spliting up of patch into 3 patches.
4. Adding channel info into ds1803_cfg in separate patch.
5. Dropping the use of enum in firmware data instead using previous
   pointer method for accessing device specific data.
6. Separate patch for using firmware provided data instead of 
   id->driver_data.
7. Adding DS3502 support in separate patch.

Changes since v1:
1. Fixes the alignment to match the open parenthesis in separate patch.
2. Adding available functionality for ds1803 driver in separate patch.
3. Moving maxim_potentiometer members into ds1803_cfg structure.
4. Droping of the INFO_ENABLE channel type.
5. Firmware entry with data is used instead of id->driver_data to
   to retrieve the chip specific data.

Jagath Jog J (7):
  iio: potentiometer: Alignment to match the open parenthesis
  iio: potentiometer: Add available functionality
  iio: potentiometer: Add channel information in device data
  iio: potentiometer: Change to firmware provided data
  iio: potentiometer: Add device specific read_raw function
  iio: potentiometer: Add support for Maxim DS3502
  dt-bindings: iio: potentiometer: Add Maxim DS3502 in trivial-devices

 .../devicetree/bindings/trivial-devices.yaml  |   2 +
 drivers/iio/potentiometer/Kconfig             |   6 +-
 drivers/iio/potentiometer/ds1803.c            | 153 +++++++++++++-----
 3 files changed, 121 insertions(+), 40 deletions(-)

-- 
2.17.1