linux-kernel - Re: [PATCH v2 1/2] gpio: davinci: don't create irq

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Message-ID: <CA+V-a8tBQPAHjHibLa=n1mu31ZJyLU3vGwLutHqe=Fg4eXq6zA@mail.gmail.com>
Date:	Sat, 21 Dec 2013 13:50:56 +0530
From:	Prabhakar Lad <prabhakar.csengg@...il.com>
To:	Grygorii Strashko <grygorii.strashko@...com>
Cc:	Santosh Shilimkar <santosh.shilimkar@...com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Sekhar Nori <nsekhar@...com>,
	Alexandre Courbot <gnurou@...il.com>,
	Rob Herring <rob.herring@...xeda.com>,
	dlos <davinci-linux-open-source@...ux.davincidsp.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	LAK <linux-arm-kernel@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] gpio: davinci: don't create irq_domain in case of
 unbanked irqs

On Wed, Dec 18, 2013 at 3:37 PM, Grygorii Strashko
<grygorii.strashko@...com> wrote:
> The system may crash if:
> - there are more then 1 bank
> - unbanked irqs are enabled
> - someone will call gpio_to_irq() for GPIO from bank2 or above
>
> Hence, fix it by not creating irq_domain if unbanked irqs are enabled
> and correct gpio_to_irq_banked() to handle this properly.
>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Cc: Alexandre Courbot <gnurou@...il.com>
> Cc: Sekhar Nori <nsekhar@...com>
>
> Acked-by: Santosh Shilimkar <santosh.shilimkar@...com>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>

Acked-by: Lad, Prabhakar <prabhakar.csengg@...il.com>

Regards,
--Prabhakar Lad
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