From mboxrd@z Thu Jan  1 00:00:00 1970
From: swarren@wwwdotorg.org (Stephen Warren)
Date: Sat, 25 Oct 2014 20:52:52 -0600
Subject: [PATCH] bcm2835: add VideoCore Mailbox to the device tree
In-Reply-To: <20141024155321.GF10395@x1>
References: <1414156805-30253-1-git-send-email-lkundrak@v3.sk>
 <20141024155321.GF10395@x1>
Message-ID: <544C6204.50607@wwwdotorg.org>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 10/24/2014 09:53 AM, Lee Jones wrote:
> On Fri, 24 Oct 2014, Lubomir Rintel wrote:
> 
>> Follows the generic Mailbox Controller bindings as documented in
>> Documentation/devicetree/bindings/mailbox/mailbox.txt.
>>
>> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
>> Cc: Stephen Warren <swarren@wwwdotorg.org>
>> Cc: Lee Jones <lee.jones@linaro.org>
>> Cc: devicetree at vger.kernel.org
>> Cc: linux-rpi-kernel at lists.infradead.org
>> Cc: linux-arm-kernel at lists.infradead.org
>> ---
>>  arch/arm/boot/dts/bcm2835.dtsi | 7 +++++++
>>  1 file changed, 7 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
>> index 3342cb1..bd046a9 100644
>> --- a/arch/arm/boot/dts/bcm2835.dtsi
>> +++ b/arch/arm/boot/dts/bcm2835.dtsi
>> @@ -50,6 +50,13 @@
>>  			#interrupt-cells = <2>;
>>  		};
>>  
>> +		mailbox: mailbox at 0x7e00b880 {
> 
> Remove the 0x.
> 
>> +			compatible = "brcm,bcm2835-mbox";
>> +			reg = <0x7e00b880 0x40>;
>> +			interrupts = <0 1>;
> 
> 2 interrupts one cell right?  No flags?

The DT binding says 1 IRQ in the list, and the interrupt controller in
bcm2835.dtsi has 2 cells per IRQ.

Whether that's all the IRQs the HW has for this HW module, I don't know.