Re: [PATCH v4 9/9] serial: exar: Add support for IOT2040 device

[Andy Shevchenko]

On Tue, May 30, 2017 at 10:01 AM, Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote:
> This implements the setup of RS232 and the switch-over to RS485 or RS422
> for the Siemens IOT2040. That uses an EXAR XR17V352 with external logic
> to switch between the different modes. The external logic is controlled
> via MPIO pins of the EXAR controller.
>
> Only pin 10 can be exported as GPIO on the IOT2040. It is connected to
> an LED.
>
> As the XR17V352 used on the IOT2040 is not equipped with an external
> EEPROM, it cannot present itself as IOT2040-variant via subvendor/
> subdevice IDs. Thus, we have to check via DMI for the target platform.

Take into consideration comments per patch 2.
Otherwise looks good to me.

-- 
With Best Regards,
Andy Shevchenko