linux-kernel - Re: [PATCH v1 1/2] of: irq: Ignore disabled intc's when searching map

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Message-ID: <CAEgOgz5USCRS5cB6bchFjZfafE6syPzWob8H8yNjczgKLB_RRw@mail.gmail.com>
Date:	Wed, 4 Dec 2013 14:42:50 +1000
From:	Peter Crosthwaite <peter.crosthwaite@...inx.com>
To:	grant-likely <grant-likely@...aro.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH v1 1/2] of: irq: Ignore disabled intc's when searching map

Ping!

On Thu, Nov 28, 2013 at 5:26 PM, Peter Crosthwaite
<peter.crosthwaite@...inx.com> wrote:
> When searching the interrupt map, if a matched parent is disabled, just
> ignore it and move on with the search.
>
> This allows for specifying connection of a single device IRQ to
> multiple interrupt controllers via the interrupt map schema. This change
> allows for selection of the active interrupt controller via the already
> existing status = "disabled" mechanism.
>
> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@...inx.com>
> Acked-by: Michal Simek <michal.simek@...inx.com>
> ---
>  drivers/of/irq.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/of/irq.c b/drivers/of/irq.c
> index 786b0b4..22e414b 100644
> --- a/drivers/of/irq.c
> +++ b/drivers/of/irq.c
> @@ -217,6 +217,9 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
>                                 goto fail;
>                         }
>
> +                       if (!of_device_is_available(newpar))
> +                               match = 0;
> +
>                         /* Get #interrupt-cells and #address-cells of new
>                          * parent
>                          */
> --
> 1.8.4.4
>
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