linux-kernel - Re: [PATCH v2 1/2] clk: Disable unused clocks after deferred probing is done

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Message-ID: <51A6AF7D.8080706@codeaurora.org>
Date:	Wed, 29 May 2013 18:46:37 -0700
From:	Saravana Kannan <skannan@...eaurora.org>
To:	Mike Turquette <mturquette@...aro.org>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	linux-arm-msm@...r.kernel.org, Stephen Boyd <sboyd@...eaurora.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 1/2] clk: Disable unused clocks after deferred probing
 is done

On 05/29/2013 12:51 AM, Mike Turquette wrote:
> Quoting Saravana Kannan (2013-05-15 21:34:03)
>> On 05/09/2013 11:35 AM, Saravana Kannan wrote:
>>> With deferred probing, late_initcall() is too soon to declare a clock as
>>> unused. Wait for deferred probing to finish before declaring a clock as
>>> unused. Since deferred probing is done in late_initcall(), do the unused
>>> check to late_initcall_sync.
>>>
>>> Signed-off-by: Saravana Kannan <skannan@...eaurora.org>
>>> ---
>>>    drivers/clk/clk.c |    2 +-
>>>    1 files changed, 1 insertions(+), 1 deletions(-)
>>>
>>> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
>>> index fe4055f..5ecb64c 100644
>>> --- a/drivers/clk/clk.c
>>> +++ b/drivers/clk/clk.c
>>> @@ -534,7 +534,7 @@ static int clk_disable_unused(void)
>>>
>>>        return 0;
>>>    }
>>> -late_initcall(clk_disable_unused);
>>> +late_initcall_sync(clk_disable_unused);
>>>
>>>    /***    helper functions   ***/
>>
>> Mike,
>>
>> Thoughts? Picking it up? Removing the existing auto-disable code (I
>> think they are still useful)?
>>
>
> Hi Saravana,
>
> I've taken this into clk-next for testing.
>
> Regards,
> Mike
>

Thanks.

-Saravana
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