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SubjectRe: [PATCH] gpio: thunderx: select IRQ_DOMAIN_HIERARCHY instead of depends on
Hi David,

2017-09-06 11:09 GMT+09:00 David Daney <>:
> On 09/05/2017 06:40 PM, Masahiro Yamada wrote:
>> IRQ_DOMAIN_HIERARCHY is not user-configurable, but supposed to be
>> selected by drivers that need IRQ domain hierarchy support.
>> GPIO_THUNDERX is the only user of "depends on IRQ_DOMAIN_HIERARCHY".
>> This means, we can not enable GPIO_THUNDERX unless other drivers
>> select IRQ_DOMAIN_HIERARCHY elsewhere. This is odd. Flip the logic.
>> Signed-off-by: Masahiro Yamada <>
> IRQ_DOMAIN_HIERARCHY is set as a result of ARCH_THUNDER (this SoC hardware),
> so it actually works as-is.

Right, ARCH_THUNDER does not select it directly,
but does it indirectly. (this is not so clear...)


> That said, this looks like a reasonable
> improvement, and will allow the COMPILE_TEST to enable it, so...
> Acked-by: David Daney <>

BTW, I could not understand your intention of

Why can COMPILE_TEST be enabled when 64BIT?

Best Regards
Masahiro Yamada

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