Re: [PATCH 4/6] ARM: OMAP4: PMU: Add runtime PM support

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On Wed, May 16, 2012 at 6:05 AM, Ming Lei <ming.lei@xxxxxxxxxxxxx> wrote:
> On Tuesday, May 15, 2012, Jon Hunter <jon-hunter@xxxxxx> wrote:
>> Hi Ming,
>> On 05/14/2012 11:53 PM, Ming Lei wrote:
>>> On Thu, May 10, 2012 at 5:35 AM, Jon Hunter <jon-hunter@xxxxxx> wrote:
>>>> From: Jon Hunter <jon-hunter@xxxxxx>
>>>> This patch is based upon Ming Lei's patch to add runtime PM support for
>>>> OMAP4
>>>> [1]. In Ming's original patch the CTI interrupts were being enabled
>>>> during
>>>> runtime when the PMU was used but they were only configured once during
>>>> init.
>>>> Therefore move the configuration of the CTI interrupts to the runtime PM
>>>> functions.
>>> As Shilimkar pointed out, you need to give the reason why the change
>>> is introduced
>>> in the patch.
>> Yes will do. I have been waiting to get some feedback on HW_AUTO versus
>> SW_SLEEP from design before posting a V2. I will enhance the changelog.
> Looks pandaboard will hang during kernel boot
> with the latest next tree, so perf can't be tested now.
> Once the problem is fixed, l will run perf test and provide my feedback.

After bisecting, looks it is the 1st commit which triggers kernel
boot hang:

commit 5f3aa31f77733605f04a5a92ddc475ffd439585f
Merge: 0f131ea ce4deaa
Author: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date:   Mon May 14 18:55:39 2012 +1000

    Merge remote-tracking branch 'arm-soc/for-next'

These 6 patches can't be applied against previous commit, so
I can't verify these patches now.

Ming Lei
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