Re: [PATCH v2] ARM: dts: add "simple-bus" where "arm,amba-bus" is used alone

From: Masahiro Yamada
Date: Tue Mar 08 2016 - 23:32:36 EST


Hi Rob,


2016-03-08 17:49 GMT+09:00 Rob Herring <robh+dt@xxxxxxxxxx>:
> On Mon, Mar 7, 2016 at 11:46 PM, Masahiro Yamada
> <yamada.masahiro@xxxxxxxxxxxxx> wrote:
>> The compatible string "simple-bus" is well defined in ePAPR, while
>> I see no documentation for the "arm,amba-bus" in ePAPR or under
>> Documentation/devicetree/.
>>
>> DT is also used by other projects than Linux kernel. It is not a
>> good idea to rely on such an unofficial binding.
>>
>> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
>> ---
>>
>> Changes in v2:
>> - Rephrase the git-log
>
> [...]
>
>> diff --git a/arch/arm/boot/dts/axm55xx.dtsi b/arch/arm/boot/dts/axm55xx.dtsi
>> index ea288f0..8da4582 100644
>> --- a/arch/arm/boot/dts/axm55xx.dtsi
>> +++ b/arch/arm/boot/dts/axm55xx.dtsi
>> @@ -107,7 +107,7 @@
>> };
>>
>> amba {
>> - compatible = "arm,amba-bus";
>> + compatible = "arm,amba-bus", "simple-bus";
>
> As I mentioned in the last version, I think you should remove
> arm,amba-bus and just have simple-bus. I don't believe anything relies
> on having arm,amba-bus.

Sorry about this.

V3 is here now:
https://patchwork.kernel.org/patch/8542031/




--
Best Regards
Masahiro Yamada