Re: [PATCH 01/14] gpio: pca953x: move suspend/resume to suspend_noirq/resume_noirq

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello Tony,

On 1/16/24 08:43, Tony Lindgren wrote:
> * Thomas Richard <thomas.richard@xxxxxxxxxxx> [240115 16:16]:
>> Some IOs can be needed during suspend_noirq/resume_noirq.
>> So move suspend/resume callbacks to noirq.
> 
> So have you checked that the pca953x_save_context() and restore works
> this way? There's i2c traffic and regulators may sleep.. I wonder if
> you instead just need to leave gpio-pca953x enabled in some cases
> instead?
> 

Yes I tested it, and it works (with my setup).
But this patch may have an impact for other people.
How could I leave it enabled in some cases ?

Regards,

-- 
Thomas Richard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com





[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux