Re: [PATCH v3 09/10] gpio-exar/8250-exar: Make set of exported GPIOs configurable

On Fri, May 26, 2017 at 7:02 PM, Jan Kiszka [off-list ref] wrote:

On the SIMATIC, IOT2040 only a single pin is exportable as GPIO, the
rest is required to operate the UART. To allow modeling this case,
expand the platform device data structure to specify a (consecutive) pin
subset for exporting by the gpio-exar driver.

+       unsigned int first_pin;

+       if (device_property_read_u32(&pdev->dev, "first_pin", &first_pin) < 0 ||

And again, we need to follow the rules of the device property
bindings. (No underscores - use dashes; name should be registered).

Without Rafael's / Mika's and Rob's opinions I would not go with a
such name even for internal property.

DWC3 (USB) for example is still using "linux," prefix. I dunno if it's
the case here, I mean can or can't we use similar approach.

+           device_property_read_u32(&pdev->dev, "npins", &npins) < 0)

"ngpios"

-- 
With Best Regards,
Andy Shevchenko