[PATCH 3/9] ARM: mmp: support DT in irq

Haojian Zhuang haojian.zhuang at gmail.com
Thu May 3 23:41:15 EDT 2012


On Wed, May 2, 2012 at 8:51 PM, Arnd Bergmann <arnd at arndb.de> wrote:
> On Wednesday 02 May 2012, Haojian Zhuang wrote:
>> I use two CONFIG_OF in this file. The first one is used to record
>> register base address
>> of interrupt controller. In legacy code, the register address is
>> hardcoding. Do you mean
>> that I should remove this CONFIG_OF?
>
> Unless it's a noticeable performance impact, I would recommend just
> always using the mmp_icu_base variable, even for when CONFIG_OF is
> disabled.
>
>        Arnd

But I appended new irq handler for DT support. I still need to reserve
this CONFIG_OF
since I need to keep compatible with legacy code. While everything in
arch-mmp is moved
into DT, I can remove this CONFIG_OF.

For the second CONFIG_OF, I can try to remove it.

Best Regards
Haojian



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