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

From: Geert Uytterhoeven
Date: Tue Mar 08 2016 - 03:58:39 EST


On Tue, Mar 8, 2016 at 9:49 AM, Rob Herring <robh+dt@xxxxxxxxxx> wrote:
>> 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.

It may have a side-effect: currently "arm.amba-bus" is only treated equivalent
to "simple-bus" if CONFIG_ARM_AMBA is enabled.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds