linux-kernel - Re: [PATCH v1 2/2] pinctrl: cy8c95x0: Implement ->gpio_request_enable() and ->gpio_set

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Date:   Mon, 17 Oct 2022 15:17:22 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Patrick Rudolph <patrick.rudolph@...ements.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 2/2] pinctrl: cy8c95x0: Implement
 ->gpio_request_enable() and ->gpio_set_direction()

On Mon, Oct 17, 2022 at 11:55:07AM +0200, Linus Walleij wrote:
> On Mon, Oct 10, 2022 at 2:52 PM Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:
> 
> > Without ->gpio_request_enable() and ->gpio_set_direction()
> > callbacks it's not possible to mux GPIO via standard GPIO
> > interfaces (like `gpioget` or `gpioset` tools in user space).
> >
> > Implement those functions to fill the above mentioned gap.
> >
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> 
> Patch applied, it looked a bit scary but I realize you probably
> have tested it on the hardware and made sure it works.

Yes, exactly. The problem the driver had (before this series) I realised is
that the switching to function won't make it GPIO request and GPIO request
didn't switch function.

-- 
With Best Regards,
Andy Shevchenko