linux-kernel - Re: [PATCH-next 20/20] gpio: gpio-omap: clean up register access in omap2_set_gpio

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Message-ID: <CACRpkdarzvVAFz90xJQCoF2+8rDf4_-Dys490HaXV+wbQGGxGw@mail.gmail.com>
Date:   Tue, 18 Jun 2019 13:28:18 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     grygorii <grygorii.strashko@...com>
Cc:     Russell King <rmk@....linux.org.uk>,
        Tony Lindgren <tony@...mide.com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Russell King <rmk+kernel@...linux.org.uk>
Subject: Re: [PATCH-next 20/20] gpio: gpio-omap: clean up register access in omap2_set_gpio_debounce()

On Mon, Jun 17, 2019 at 8:57 PM grygorii <grygorii.strashko@...com> wrote:

> By the way, there seems no ABI for debounce cfg in gpio_dev interface.
> (or i'm missing smth?)

No that is correct.

I tend to be conservative with exposing stuff to userspace, but if somone
comes with a valid usecase for using debounce from userspace we will
add it I suppose. It's pretty much on need-to-have basis since we can
never change the userspace ABI.

Yours,
Linus Walleij