From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>,
Kevin Hilman <khilman@linaro.org>,
Stephen Warren <swarren@wwwdotorg.org>,
Lars Poeschel <larsi@wh2.tu-dresden.de>,
Enric Balletbo i Serra <eballetbo@gmail.com>,
Tony Lindgren <tony@atomide.com>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
Linux-OMAP <linux-omap@vger.kernel.org>
Subject: Re: [PATCH 1/1] gpio/omap: use gpiolib API to mark a GPIO used as an IRQ
Date: Wed, 16 Oct 2013 10:25:40 +0200 [thread overview]
Message-ID: <525E4D84.4030504@collabora.co.uk> (raw)
In-Reply-To: <CACRpkdYWtgExaaFZ_nV_yX43FXpMCeskjGtKMyVySd+awuepOQ@mail.gmail.com>
On 10/16/2013 10:06 AM, Linus Walleij wrote:
> On Wed, Oct 16, 2013 at 2:47 AM, Javier Martinez Canillas
> <javier.martinez@collabora.co.uk> wrote:
>
>> The OMAP GPIO driver keeps track about GPIO pins that are
>> used as IRQ lines for two reasons:
>>
>> 1) To prevent GPIO banks to be disabled while one of their
>> GPIO pins are only used as an interrupt line.
>>
>> 2) To not allow another caller to set the GPIO pin as output.
>>
>> Now gpiolib has an API to mark GPIO pins as used as IRQ lines
>> so the GPIO core only allows to set as output GPIO pins not
>> tied to an IRQ. So there is no need to have custom code for 2).
>>
>> The IRQ usage still has to be maintained locally for 1) though.
>>
>> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
>
> Patch applied. I had to merge in v3.12-rc4 to get the dependency
> fixes, so I guess you did something similar when developing
> this...
>
Thanks and yes since this is not a critical bug it was meant to be for v3.13 on
top of fac7fa162 ("gpio/omap: auto-setup a GPIO when used as an IRQ") and after
you have merged your flag-irqs branch.
Sorry for not explicitly mentioning this dependency.
> Yours,
> Linus Walleij
>
Best regards,
Javier
prev parent reply other threads:[~2013-10-16 8:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-16 0:47 [PATCH 1/1] gpio/omap: use gpiolib API to mark a GPIO used as an IRQ Javier Martinez Canillas
2013-10-16 8:06 ` Linus Walleij
2013-10-16 8:25 ` Javier Martinez Canillas [this message]
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