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

[Shilimkar, Santosh]

On Thu, May 17, 2012 at 4:47 AM, Kevin Hilman <khilman at ti.com> wrote:
> Tero Kristo <t-kristo at ti.com> writes:
>
>> From: Rajendra Nayak <rnayak at ti.com>
>>
>> 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 at ti.com>
>> Signed-off-by: Santosh Shilimkar <santosh.shilimkar at ti.com>
>> [t-kristo at ti.com: added omap4 pm errata support]
>> Signed-off-by: Tero Kristo <t-kristo at ti.com>
>
> Let's use the cluster PM notifiers here too, using the PM errata check
> when registering the notifier.
>
Good idea.