Re: [PATCH v2 1/5] gpio: add support to get local gpio number

[Marco Felsch <m.felsch@pengutronix.de>]

On 19-11-29 11:19, Linus Walleij wrote:
> On Fri, Nov 29, 2019 at 11:15 AM Marco Felsch <m.felsch@pengutronix.de> wrote:
> 
> > > What about renaming gpio_chip_hwgpio() everywhere
> > > to gpiod_to_offet(), remove it from drivers/gpio/gpiolib.h
> > > and export it in <linux/gpio/consumer.h> instead?
> >
> > That's also possible but then we have to include the consumer.h header
> > within the gpiolib.c and this seems to be wrong. But since I'm not the
> > maintainer it is up to you and Bart. Both ways are possible,
> 
> What about following the pattern by the clk subsystem and
> create <linux/gpio/private.h> and put it there?
> 
> It should be an indication to people to not use these features
> lightly. We can decorate the header file with some warnings.

That's a good idea. So the following points should be done:
  - rename gpio_chip_hwgpio() to gpiod_to_offset() or gpiod_to_local_offset()
  - move the new helper to <linux/gpio/private.h>
  - add kerneldoc
  - add warnings into the header

Regards,
  Marco

> Yours,
> Linus Walleij
> 

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