[PATCH v4 2/5] thermal/drivers/mediatek/lvts_thermal: Add suspend and resume
Alexandre Mergnat
amergnat at baylibre.com
Mon Sep 25 07:52:56 PDT 2023
On 23/08/2023 09:48, Daniel Lezcano wrote:
> On 31/05/2023 10:05, AngeloGioacchino Del Regno wrote:
>
> [ ... ]
>
>>> static const struct lvts_ctrl_data mt8195_lvts_mcu_data_ctrl[] = {
>>> {
>>> .cal_offset = { 0x04, 0x07 },
>>> @@ -1268,6 +1300,8 @@ MODULE_DEVICE_TABLE(of, lvts_of_match);
>>> static struct platform_driver lvts_driver = {
>>> .probe = lvts_probe,
>>> .remove = lvts_remove,
>>> + .suspend = lvts_suspend,
>>
>> Should we do that in noirq handlers?
>> We're risking to miss a thermal interrupt.
>
> I'm not sure missing a thermal interrupt is a problem in this context
> but we may go in the irq routine with an undefined state sensor setup
> (eg. the internal clock stopped in the suspend and then read the sensor
> in the isr).
>
> IMO, using suspend_noirq and resume_noirq may be required here.
>
> Alexandre are you taking over the next iteration?
>
>
Hi Daniel,
Sorry I missed your message...
I don't think taking over the next iteration, Bernhard should continue.
Let me check internally to be sure. As I understood, the next change
should be heavy.
--
Regards,
Alexandre
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