linux-kernel - Re: [PATCH V5 1/3] arm: dts: dra7: Add crossbar device binding

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Date:	Tue, 6 May 2014 14:40:55 -0500
From:	Felipe Balbi <balbi@...com>
To:	Sricharan R <r.sricharan@...com>
CC:	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-doc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <linus.walleij@...aro.org>,
	<linux@....linux.org.uk>, <tony@...mide.com>, <rnayak@...com>,
	<marc.zyngier@....com>, <grant.likely@...aro.org>,
	<mark.rutland@....com>, <tglx@...utronix.de>,
	<galak@...eaurora.org>, <santosh.shilimkar@...com>, <nm@...com>,
	<bcousson@...libre.com>, <robherring2@...il.com>
Subject: Re: [PATCH V5 1/3] arm: dts: dra7: Add crossbar device binding

On Tue, May 06, 2014 at 07:26:17PM +0530, Sricharan R wrote:
> This adds the irq crossbar device node.
> 
> There is a IRQ crossbar device in the soc, which
> maps the irq requests from the peripherals to the
> mpu interrupt controller's inputs. The Peripheral irq
> requests are connected to only one crossbar
> input and the output of the crossbar is connected to only one
> controller's input line. The crossbar device is used to map
> a peripheral input to a free mpu's interrupt controller line.
> 
> Cc: Benoit Cousson <bcousson@...libre.com>
> Cc: Santosh Shilimkar <santosh.shilimkar@...com>
> Cc: Rajendra Nayak <rnayak@...com>
> Cc: Tony Lindgren <tony@...mide.com>
> Signed-off-by: Sricharan R <r.sricharan@...com>
> Signed-off-by: Nishanth Menon <nm@...com>
> ---
> [V5] Rebased on top of 3.15-rc4 and corrected the
>      irqs-reserved list
> 
>  arch/arm/boot/dts/dra7.dtsi |    8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
> index 149b550..0274a86 100644
> --- a/arch/arm/boot/dts/dra7.dtsi
> +++ b/arch/arm/boot/dts/dra7.dtsi
> @@ -790,6 +790,14 @@
>  			status = "disabled";
>  		};
>  	};
> +
> +	crossbar_mpu: crossbar@...20000 {

shouldn't this be "status = disabled"; so that boards enable this
on-demand ??

-- 
balbi

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