From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: "linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
Russell King <linux@arm.linux.org.uk>,
Dmitry Artamonow <mad_soft@inbox.ru>
Subject: Re: [PATCH 0/9] ARM: sa1100: Rework IRQ handling
Date: Fri, 22 Nov 2013 21:33:32 +0400 [thread overview]
Message-ID: <528F956C.5040107@gmail.com> (raw)
In-Reply-To: <CACRpkdbgn22xDX4nJZSDSE9-h+u1j5DQt=8arO7oS-UCBdBMUQ@mail.gmail.com>
On 11/20/2013 12:24 AM, Linus Walleij wrote:
> On Tue, Nov 19, 2013 at 4:17 PM, Dmitry Eremin-Solenikov
> <dbaryshkov@gmail.com> wrote:
>> On 11/19/2013 05:00 PM, Linus Walleij wrote:
>
>>> And that happens before the GPIO driver gets registered -> crash.
>>
>> That is not the issue. The real issue is h3xxx using those gpio's without
>> previously calling gpio_request.
>
> Really? But that wasn't done before this patch either.
>
> It is basically OK to use the gpio_* functions before or
> without requesting the GPIOs, it won't look nice but it
> works.
>
>> Unfortunately sa1100 driver doesn't have a
>> good place to request gpios. When faced this problem during locomo
>> refactoring, I ended up with the following piece of code:
> (...)
>> Russell, Linus, what do you think about the previous solution?
>
> That looks OK but is that really the problem?
I have reworked h3xxx GPIO handling to (hopefully) not to cause the
problem. I have sent the patches yesterday.
Linus, Could you please check if both series work (and make sense to you)?
--
With best wishes
Dmitry
next prev parent reply other threads:[~2013-11-22 17:33 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-15 8:47 [PATCH 0/9] ARM: sa1100: Rework IRQ handling Dmitry Eremin-Solenikov
2013-11-15 8:47 ` [PATCH 1/9] ARM: sa1100 collie: use gpio-charger instead of pda-power Dmitry Eremin-Solenikov
2013-11-15 8:47 ` [PATCH 2/9] ARM: locomo: don't clobber chip data for chained irq Dmitry Eremin-Solenikov
2013-11-15 8:47 ` [PATCH 3/9] ARM: sa1100: switch to MULTI_IRQ_HANDLER Dmitry Eremin-Solenikov
2013-11-15 8:47 ` [PATCH 4/9] ARM: sa1100: convert gpio driver to be a proper platform driver Dmitry Eremin-Solenikov
2013-11-19 10:08 ` Linus Walleij
2013-11-15 8:47 ` [PATCH 5/9] ARM: sa1100: add platform functions to handle PWER settings Dmitry Eremin-Solenikov
2013-11-15 8:47 ` [PATCH 6/9] ARM: sa1100: enable IRQ domains Dmitry Eremin-Solenikov
2013-11-15 8:47 ` [PATCH 7/9] ARM: sa1100: move gpio irq handling to GPIO driver Dmitry Eremin-Solenikov
2013-11-22 17:45 ` Russell King - ARM Linux
2013-11-22 19:46 ` Dmitry Eremin-Solenikov
2013-11-22 20:02 ` Russell King - ARM Linux
2013-11-22 21:20 ` Dmitry Eremin-Solenikov
2013-11-15 8:47 ` [PATCH 8/9] ARM: sa1100: move per-IRQ PWER settings to core code Dmitry Eremin-Solenikov
2013-11-15 8:48 ` [PATCH 9/9] ARM: sa1100: refactor irq driver Dmitry Eremin-Solenikov
2013-11-19 13:00 ` [PATCH 0/9] ARM: sa1100: Rework IRQ handling Linus Walleij
2013-11-19 15:17 ` Dmitry Eremin-Solenikov
2013-11-19 20:24 ` Linus Walleij
2013-11-20 0:20 ` Russell King - ARM Linux
2013-11-20 0:45 ` Dmitry Eremin-Solenikov
2013-11-20 7:43 ` Dmitry Artamonow
2013-11-22 17:58 ` Russell King - ARM Linux
2013-11-22 19:12 ` Dmitry Eremin-Solenikov
2013-11-22 19:51 ` Russell King - ARM Linux
2013-11-22 21:23 ` Dmitry Eremin-Solenikov
2013-11-20 0:40 ` Dmitry Eremin-Solenikov
2013-11-22 17:33 ` Dmitry Eremin-Solenikov [this message]
2013-11-22 21:35 ` Dmitry Eremin-Solenikov
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