From mboxrd@z Thu Jan  1 00:00:00 1970
From: grant.likely@secretlab.ca (Grant Likely)
Date: Fri, 11 May 2012 18:11:44 -0600
Subject: irq_to_gpio support
In-Reply-To: <20120419113019.GB26682@b20223-02.ap.freescale.net>
References: <20120419113019.GB26682@b20223-02.ap.freescale.net>
Message-ID: <20120512001144.18CC23E0791@localhost>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Thu, 19 Apr 2012 19:30:20 +0800, Richard Zhao <richard.zhao@freescale.com> wrote:
> Hi Grant & Linus
> 
> I saw gpio lib didn't provide irq_to_gpio support. Are we dropping it?
> git grep irq_to_gpio still return a lot of things.
> 
> I'm looking at drivers/input/touchscreen/egalax_ts.c driver.
> It failed to compile without irq_to_gpio. It's a i2c client device and
> use irq line configured as gpio to wakeup touchscreen controller.
> If we don't have irq_to_gpio, I'm afraid it has to use plat data or
> of property to pass gpio number.

Yeah, since there can be an 1:n relationship between irqs and gpios I
can't see that api ever being implemented correctly.

g.