linux-kernel - Re: [PATCH 2/6] ARM: DTS: da850: Add node for edma0

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Date:	Fri, 1 Aug 2014 08:09:31 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	<nsekhar@...com>, <robh+dt@...nel.org>
CC:	<devicetree@...r.kernel.org>,
	<davinci-linux-open-source@...ux.davincidsp.com>,
	<linux@....linux.org.uk>, <pawel.moll@....com>,
	<khilman@...prootsystems.com>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/6] ARM: DTS: da850: Add node for edma0

On 07/31/2014 05:26 PM, Sergei Shtylyov wrote:
> On 07/31/2014 02:18 PM, Peter Ujfalusi wrote:
> 
>> Add DT node for edma0.
> 
>> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
>> ---
>>   arch/arm/boot/dts/da850.dtsi | 6 ++++++
>>   1 file changed, 6 insertions(+)
> 
>> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
>> index b695548dbb4e..41ce4e8bf227 100644
>> --- a/arch/arm/boot/dts/da850.dtsi
>> +++ b/arch/arm/boot/dts/da850.dtsi
>> @@ -150,6 +150,12 @@
>>               };
>>
>>           };
>> +        edma0: edma@...00000 {
>> +            compatible = "ti,edma3";
>> +            reg =    <0x0 0x10000>;
> 
>    Why the mismatch between the unit-address part of the node name and the
> "reg" property?

For some reason the whole da850 uses offset from 0x01c00000 for the SoC IPs.
The nodes are under 'soc' and that has the ranges attribute.
I do not really like this either.

> 
>> +            interrupts = <11 13 12>;
>> +            #dma-cells = <1>;
>> +        };
> 
> WBR, Sergei
> 

-- 
Péter
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