linux-kernel - Re: [PATCH v2 4/7] gpiolib: remove gpio_set

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Message-ID: <Y9q4d50lSdPn8myb@google.com>
Date:   Wed, 1 Feb 2023 11:07:35 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Arnd Bergmann <arnd@...nel.org>, linux-gpio@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/7] gpiolib: remove gpio_set_debounce

On Wed, Feb 01, 2023 at 08:32:06PM +0200, Andy Shevchenko wrote:
> On Tue, Jan 31, 2023 at 09:44:31PM -0800, Dmitry Torokhov wrote:
> > On Fri, Jan 27, 2023 at 11:11:46AM +0100, Arnd Bergmann wrote:
> 
> ...
> 
> > > -	return !gpio_get_value(ts->gpio_pendown);
> > > +	return !gpiod_get_value(ts->gpio_pendown);
> > 
> > No, we can not blindly do that without checking annotations on GPIOs.
> 
> But this is easy to fix, i.e. use raw API, no?

I'd rather not (I hope I can make this driver respect declared polarity
at some point), so for debounce we could do:

	gpiod_set_debounce(gpio_to_gpiod(), ...);

in ads7846 for now, and get rid of gpio_set_debounce() as a publc API.

Thanks.

-- 
Dmitry