On Friday 18 May 2018 03:13 AM, Tony Lindgren wrote:
> * Keerthy <j-keerthy@xxxxxx> [180516 15:21]:
>> Inroduce cpu_pm notifiers for context save/restore. This will be
>> needed for am43xx family in case of rtc only mode with ddr in
>> self-refresh.
> ...
>> +static int cpu_notifier(struct notifier_block *nb, unsigned long cmd, void *v)
>> +{
>> + switch (cmd) {
>> + case CPU_CLUSTER_PM_ENTER:
>> + if (enable_off_mode)
>> + clkdm_save_context();
>> + break;
>> + case CPU_CLUSTER_PM_EXIT:
>> + if (enable_off_mode)
>> + clkdm_restore_context();
>> + break;
>> + }
>> +
>> + return NOTIFY_OK;
>> +}
>
> Can you do this too only on suspend instead of the cpu notifier?
> If you need to call this eventually from cpuidle also then yeah
> the notifier makes sense.
Clockdomain under omap2 does not have suspend/resume calls as its still
not a driver. The initial version of this patch had save/restore calls
directly from pm33xx-core during suspend/resume platform ops are called.
Are you suggesting that?
>
> Regards,
>
> Tony
>
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