linux-kernel - Re: [PATCH 1/2] gpio: gpio-mxc: Fix: higher 16 GPIOs usable as wake source

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Message-ID: <CACRpkdbqugHn8A4qU=2tX256RxBf2GGEfoDrCsX2GdWrOcs4dw@mail.gmail.com>
Date:   Tue, 1 Aug 2017 10:37:59 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Philipp Rosenberger <p.rosenberger@...utronix.de>,
        Vladimir Zapolskiy <vz@...ia.com>
Cc:     Alexandre Courbot <gnurou@...il.com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 1/2] gpio: gpio-mxc: Fix: higher 16 GPIOs usable as wake source

On Wed, Jul 12, 2017 at 10:36 AM, Philipp Rosenberger
<p.rosenberger@...utronix.de> wrote:

> In the function gpio_set_wake_irq(), port->irq_high is only checked for
> zero. As platform_get_irq() returns a value less then zero if no interrupt
> was found, any gpio >= 16 was handled like an irq_high interrupt was
> available. On iMX27 for example no high interrupt is available. This lead
> to the problem that only some gpios (the lower 16) were useable as wake
> sources.
>
> Signed-off-by: Philipp Rosenberger <p.rosenberger@...utronix.de>

That looks like a clear bug, patch applied for fixes.

Yours,
Linus Walleij