linux-kernel - Re: [PATCH v2] gpiolib: tighten up ACPI legacy gpio lookups

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Date:	Tue, 17 Nov 2015 14:43:14 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Alexandre Courbot <gnurou@...il.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Johan Hovold <johan@...nel.org>,
	"Tirdea, Irina" <irina.tirdea@...el.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] gpiolib: tighten up ACPI legacy gpio lookups

On Wed, Nov 11, 2015 at 8:45 PM, Dmitry Torokhov
<dmitry.torokhov@...il.com> wrote:

> We should not fall back to the legacy unnamed gpio lookup style if the
> driver requests gpios with different names, because we'll give out the same
> gpio twice. Let's keep track of the names that were used for the device and
> only do the fallback for the first name used.
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
> ---
>
> v1: incorporated changes suggested by Mika Westerberg in response to the
> draft patch I posted in Goodix thread.
>
> v2: moved acpi_can_fallback_to_crs body to drivers/gpio/gpiolib-acpi.c
> and provided stub for !CONFIG_ACPI case to fix build error if ACPI is
> disabled.

Patch applied with Mika's ACK.

Had to fuzz a bit to make it apply, hope nothing breaks.

Yours,
Linus Walleij
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