Re: [PATCHv2 11/19] ARM: OMAP4: PM: save/restore CM L3INSTR registers when MPU hits OSWR/OFF mode

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On Thu, May 17, 2012 at 4:47 AM, Kevin Hilman <khilman@xxxxxx> wrote:
> Tero Kristo <t-kristo@xxxxxx> writes:
>
>> From: Rajendra Nayak <rnayak@xxxxxx>
>>
>> On HS devices on the way out of MPU OSWR and OFF ROM code wrongly
>> overwrites the CM L3INSTR registers. So to avoid this, save them and
>> restore on the way out from MPU OSWR/OFF.
>>
>> This errata applies to all HS/EMU versions of OMAP4.
>>
>> Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
>> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
>> [t-kristo@xxxxxx: added omap4 pm errata support]
>> Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
>
> Let's use the cluster PM notifiers here too, using the PM errata check
> when registering the notifier.
>
Good idea.
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