Re: [PATCH 4/4] gpio: Add driver for Maxim MAX3191x industrial serializer

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On Mon, Aug 21, 2017 at 3:12 PM, Lukas Wunner <lukas@xxxxxxxxx> wrote:

> The driver was developed for and tested with the MAX31913 built into
> the Revolution Pi by KUNBUS, but should work with all members of the
> MAX3191x family:
>
> MAX31910: low power
> MAX31911: LED drivers
> MAX31912: LED drivers + 2nd voltage monitor + low power
> MAX31913: LED drivers + 2nd voltage monitor
> MAX31953: LED drivers + 2nd voltage monitor + isolation
> MAX31963: LED drivers + 2nd voltage monitor + isolation + buck regulator
>
> They are similar to but more versatile than the TI SN65HVS880/2/3/5
> supported by gpio-pisosr.c as they clock out a CRC checksum to guard
> against electromagnetic interference, as well as undervoltage and
> overtemperature indicator bits.  If these features are not needed
> they can be disabled by pulling the "modesel" pin high and then
> gpio-pisosr.c can be used instead of the present driver.
>
> Cc: Mathias Duckeck <m.duckeck@xxxxxxxxx>
> Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>

This looks like a fine piece of driver.

We just need to get the infrastructure in place and I can
merge it.

Yours,
Linus Walleij
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