Re: [PATCH] spi: bcm2835: do not unregister controller in shutdown handler
From: Mark Brown <broonie@kernel.org>
Date: 2021-10-04 17:27:34
Also in:
linux-integrity, linux-spi, lkml, stable
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.