Re: [PATCH] spi: bcm2835: do not unregister controller in shutdown handler

Mark Brown
2021-10-04T17:27:33Z

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On Mon, Oct 04, 2021 at 02:13:01PM -0300, Jason Gunthorpe wrote:

> I'm kind of surprised a scheme like this didn't involve a FW call
> after Linux is done with the CPUs to quiet all the HW and let it
> sleep, I've built things that way before at least.

That's a *lot* of code to put in firmware if you can't physically power
most of the system down.

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