Subject: [PATCH v2 08/18] ARM: OMAP5: PM: Add CPU power off in hotplug path

From: [email-masked] (Santosh Shilimkar)
Date: Thu, 4 Apr 2013 18:53:26 +0530

On Thursday 04 April 2013 02:19 AM, Kevin Hilman wrote:
> Santosh Shilimkar <[email-masked]> writes:
> 
>> Add power management code to handle the CPU off mode to enable CPUP hotplug
>> mode for OMAP5 devices. Separate suspend finisher is used for OMAP5(Cortex-A15)
>> because it doesn't use SCU power status register and external PL310 L2 cache
>> which makes code flow bit different.
>>
>> Acked-by: Nishanth Menon <[email-masked]>
>> Signed-off-by: Santosh Shilimkar <[email-masked]>
> 
> [...]
> 
>> @@ -436,14 +445,21 @@ int __init omap4_mpuss_init(void)
>>  
>>  	if (cpu_is_omap44xx()) {
>>  		omap_pm_ops.finish_suspend = omap4_finish_suspend;
>> +		omap_pm_ops.hotplug_restart = omap_secondary_startup;
>>  		omap_pm_ops.resume = omap4_cpu_resume;
>>  		omap_pm_ops.scu_prepare = scu_pwrst_prepare;
>>  		cpu_context_offset = OMAP4_RM_CPU0_CPU0_CONTEXT_OFFSET;
>>  	} else if (soc_is_omap54xx()) {
>> +		omap_pm_ops.finish_suspend = omap5_finish_suspend;
>> +		omap_pm_ops.hotplug_restart = omap5_secondary_startup;
>>  		cpu_context_offset = OMAP54XX_RM_CPU0_CPU0_CONTEXT_OFFSET;
>>  		enable_mercury_retention_mode();
>>  	}
>>  
>> +	/* Over-write the OMAP4 hook to take care of ROM BUG */
>> +	if (cpu_is_omap446x())
>> +		omap_pm_ops.hotplug_restart = omap_secondary_startup_4460;
> 
> A couple nits...
> 
> I think this would go better at the end of the 'if omap44xx' block
> above.
> 
Nishant commented on this as well. The indentation was looking ugly
and I thought its better to have this BUG hunk separate. I prefer
it this way though if you really insist, i have to change it.

> Also, while you're hear, maybe it's time to rename the current secondary 
> startup functions to match the new one.  IOW omap4_..., omap4460_... and omap5_...
> 
Good idea. Will do it in a separate patch since these have been there in few
files.

Regards,
Santosh