[PATCH] powerpc/85xx: don't call of_platform_bus_probe() twice
Kumar Gala
galak at kernel.crashing.org
Thu Mar 22 02:08:49 EST 2012
On Mar 19, 2012, at 11:04 AM, Grant Likely wrote:
> On Fri, 16 Mar 2012 15:50:44 -0500, Timur Tabi <timur at freescale.com> wrote:
>> Kumar Gala wrote:
>>
>>> This seems like paper taping over the real issue. We should be able to call of_platform_bus_probe() multiple times.
>>
>> I tried debugging it, but I couldn't figure it out. My guess is that the
>> nodes probed by of_platform_bus_probe() are somehow "reserved", so that
>> the second time it's called, they're skipped. I figured that this was
>> just a side-effect of the way the OF layer works.
>
> The problem is that you want to create devices for grandchildren
> nodes when the bus ids passed in don't match any of the child nodes so
> the of_platform_bus_probe() doesn't iterate down to that level. This
> is correct and expected behaviour.
>
> g.
Does of_platform_populate() handle this?
- k
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