Re: [PATCH 1/2] power: reset: at91: add sama5d3 reset function

From: Nicolas Ferre
Date: Fri Jul 10 2015 - 12:13:28 EST


Le 10/07/2015 14:31, Maxime Ripard a écrit :
> On Fri, Jul 10, 2015 at 02:09:07PM +0200, Alexandre Belloni wrote:
>> Hi,
>>
>> On 10/07/2015 at 15:56:52 +0800, Josh Wu wrote :
>>> I would agree with Maxime. Currently all latest chip reset function is
>>> compatible with the atmel,sama5d3-rstc.
>>> So check compatible string is enough for now.
>>> But of cause if we have other incompatible reset in future with new chip,
>>> the structure like you said is needed.
>>
>> We managed to avoid using of_machine_is_compatible() in all the at91
>> drivers. I'd like to keep it that way. It was painful enough to remove
>> all those cpu_is_at91xxx calls.
>
> That's your call...
>
>> Also, using it is trying to match strings and will result in longer boot
>> times.
>
> Have you looked at the implementation of of_match_device? If that's
> really a concern to you, you should actually avoid it.

I agree: let's keep it simple and use of_match_device().

Bye,
--
Nicolas Ferre
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