Re: [PATCH v2 1/4] clk: mediatek: mt8173: Fix enabling of critical clocks

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On 07/02/2015 11:29 PM, Daniel Kurtz wrote:
> Hi Stephen,
>
> On Fri, Jul 3, 2015 at 7:03 AM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote:
>> On 06/30, James Liao wrote:
>>> From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
>>>
>>> On the MT8173 the clocks are provided by different units. To enable
>>> the critical clocks we must be sure that all parent clocks are already
>>> registered, otherwise the parents of the critical clocks end up being
>>> unused and get disabled later. To find a place where all parents are
>>> registered we try each time after we've registered some clocks if
>>> all known providers are present now and only then we enable the critical
>>> clocks
>>>
>>> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
>>> Signed-off-by: James Liao <jamesjj.liao@xxxxxxxxxxxx>
>>> ---
>> Applied to clk-fixes
> I think James plans to send an updated version of this patch.
>
>

Oh right. Well those comments are minor so I'll just fold them in given
that I'm rewinding clk-fixes today. I see that comment in init.h about
uninitialized variables and __initdata too. I found this 10 year old
thread about that [1]. At least with my gcc-4.9 arm compiler I don't see
uninitialized __initdata moved to bss. A workaround seems to be to
initialize it to NULL in this case, but maybe that doesn't matter
because compilers don't have that problem anymore.

[1] http://lkml.iu.edu/hypermail/linux/kernel/0512.0/1366.html

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