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

From: [email-masked] (Kevin Hilman)
Date: Wed, 16 May 2012 16:17:23 -0700

Tero Kristo <[email-masked]> writes:

> From: Rajendra Nayak <[email-masked]>
>
> 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 <[email-masked]>
> Signed-off-by: Santosh Shilimkar <[email-masked]>
> [t-kristo at ti.com: added omap4 pm errata support]
> Signed-off-by: Tero Kristo <[email-masked]>

Let's use the cluster PM notifiers here too, using the PM errata check
when registering the notifier.

Kevin