[PATCH v2] OMAP: CLK: CLKSRC: Add suspend resume hooks

[j-keerthy@ti.com (J, KEERTHY)]

On 5/24/2018 12:11 AM, Tony Lindgren wrote:
> * Keerthy <j-keerthy@ti.com> [180522 11:24]:
>> Add the save and restore for clksrc as part of suspend and resume
>> so that it saves the counter value and restores. This is needed in
>> modes like rtc+ddr in self-refresh not doing this stalls the time.
> Can't we now do this all in drivers/clocksource/timer-ti-*.c?

arch/arm/boot/dts/am4372.dtsi has compatible ti,omap-counter32k
which is arch/arm/mach-omap2/timer.c compatible

IMHO clocksource suspend resume best fits under mach-omap2/timer.c
just like clockevent has suspend/resume.

>
>> @@ -490,6 +513,15 @@ static void __init omap2_gptimer_clocksource_init(int gptimer_id,
>>   	res = omap_dm_timer_init_one(&clksrc, fck_source, property,
>>   				     &clocksource_gpt.name,
>>   				     OMAP_TIMER_NONPOSTED);
>> +
>> +	if (soc_is_am43xx()) {
>> +		clocksource_gpt.suspend = omap2_gptimer_clksrc_suspend;
>> +		clocksource_gpt.resume = omap2_gptimer_clksrc_resume;
>> +
>> +		clocksource_gpt_hwmod =
>> +			omap_hwmod_lookup(clocksource_gpt.name);
>> +	}
>> +
> Then you can do this based on a quirk flag set by compatible.
>
> Regards,
>
> Tony