Subject: [PATCH v3 2/4] iio: adc: add STMPE ADC driver using IIO framework

From: [email-masked] (Lee Jones)
Date: Wed, 28 Nov 2018 09:04:54 +0000

On Fri, 23 Nov 2018, Philippe Schenker wrote:

> From: Stefan Agner <[email-masked]>
> 
> This adds an ADC driver for the STMPE device using the industrial
> input/output interface. The driver supports raw reading of values.
> The driver depends on the MFD STMPE driver. If the touchscreen
> block is enabled too, only four of the 8 ADC channels are available.
> 
> Signed-off-by: Stefan Agner <[email-masked]>
> Signed-off-by: Max Krummenacher <[email-masked]>
> Signed-off-by: Philippe Schenker <[email-masked]>
> ---
> 
> Changes in v3:
>  - Undo ADC-settings related code-deletions in stmpe-ts.c that the code is
>    backwards-compatible to older devicetrees.
> 
> Changes in v2:
>  - Code formatting
>  - Move code to setup ADC to MFD device, as it is used by both drivers
>    adc and touchscreen
>  - Removed unused includes
>  - Defined the macro STMPE_START_ONE_TEMP_CONV with other macros.
>  - Added new macro that defines the channel of the temperature sensor.
>    Took new name for STMPE_MAX_ADC->STMPE_ADC_LAST_NR and used it throughout
>    the code for better readability.
>  - Added mutex_unlock where missing.
> 
>  drivers/iio/adc/Kconfig              |   7 +
>  drivers/iio/adc/Makefile             |   1 +
>  drivers/iio/adc/stmpe-adc.c          | 326 +++++++++++++++++++++++++++
>  drivers/input/touchscreen/stmpe-ts.c |  36 +--

>  drivers/mfd/Kconfig                  |   3 +-
>  drivers/mfd/stmpe.c                  |  81 +++++++
>  include/linux/mfd/stmpe.h            |   9 +

The MFD changes should be contained in a separate patch.

I don't see anything which ties the changes together.

>  7 files changed, 437 insertions(+), 26 deletions(-)
>  create mode 100644 drivers/iio/adc/stmpe-adc.c

-- 
Lee Jones [???]
Linaro Services Technical Lead
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