linux-kernel - Re: [PATCH] gpio: tegra: Fix tegra_gpio_irq_set

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Message-ID: <CACRpkdbx1Zj8G0H9pKsF-+JfXBruE4_Rx3ZD5j8q3ycsNS+YOQ@mail.gmail.com>
Date:   Sun, 29 Jul 2018 22:39:30 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     "thierry.reding@...il.com" <thierry.reding@...il.com>,
        Jon Hunter <jonathanh@...dia.com>, linux-tegra@...r.kernel.org,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] gpio: tegra: Fix tegra_gpio_irq_set_type()

On Tue, Jul 17, 2018 at 6:12 PM Dmitry Osipenko <digetx@...il.com> wrote:

> Commit 36b312792b97 ("gpiolib: Respect error code of ->get_direction()")
> broke tegra_gpio_irq_set_type() because requesting of GPIO direction must
> be done after enabling GPIO function for a pin.
>
> This patch fixes drivers probe failure like this:
>
>  gpio gpiochip0: (tegra-gpio): gpiochip_lock_as_irq: cannot get GPIO direction
>  tegra-gpio 6000d000.gpio: unable to lock Tegra GPIO 144 as IRQ
>
> Fixes: 36b312792b97 ("gpiolib: Respect error code of ->get_direction()")
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>

Patch applied with Jon's tags.

Yours,
Linus Walleij