Subject: [PATCH v2] ARM: OMAP4460: cpuidle: Extend PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD on cpuidle

From: [email-masked] (Taras Kondratiuk)
Date: Fri, 15 Nov 2013 18:02:13 +0200

On 11/15/2013 05:36 PM, Tony Lindgren wrote:
> * Tony Lindgren <[email-masked]> [131114 10:36]:
>> * Grygorii Strashko <[email-masked]> [131022 12:09]:
>>> The same workaround as ff999b8a0983ee15668394ed49e38d3568fc6859
>>> "ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC ..."
>>> need to be applied not only when system is booting, but when MPUSS hits
>>> OSWR state through CPUIdle too. Without this WA the same issue is
>>> reproduced now on boards PandaES and Tablet/Blaze with SOM OMAP4460
>>> when CONFIG_CPU_IDLE is enabled.
>>> After MPUSS has enterred OSWR and waken up:
>>> - GIC distributor became disabled forever
>>> - scheduling is not performed any more
>>>
>>> Cc: Kevin Hilman <[email-masked]>
>>> Acked-by: Santosh Shilimkar <[email-masked]>
>>> Reported-by: Taras Kondratiuk <[email-masked]>
>>> Signed-off-by: Grygorii Strashko <[email-masked]>
>>
>> Applying into omap-for-v3.13/fixes thanks.
> 
> Hmm looks like this breaks the build with randconfigs at least
> with the attached .config, so dropping for now.

Hi Tony
Have you forgot to attach .config?

> arch/arm/mach-omap2/built-in.o: In function `omap_enter_idle_coupled':
> :(.text+0xb48c): undefined reference to `pm44xx_errata'

I assume that .config doesn't have CONFIG_SMP enabled while
pm44xx_errata is defined in omap-smp.c.
I think it should be a separate patch to move pm44xx_errata somewhere
else, so this patch will remain the same.

Btw, do we need omap_enter_idle_coupled() in UP?

-- 
Taras Kondratiuk