25.01.2021 18:18, Takashi Iwai пишет:

On Wed, 20 Jan 2021 01:31:50 +0100,
Dmitry Osipenko wrote:

quoted

Reset hardware on RPM-resume in order to bring it into a predictable
state.

Tested-by: Peter Geis <redacted> # Ouya T30 audio works
Tested-by: Matt Merhar <redacted> # Ouya T30 boot-tested
Tested-by: Nicolas Chauvet <redacted> # TK1 boot-tested
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>

Currently we have neither dependency nor reverse-selection of
CONFIG_RESET_CONTROLLER.  It wouldn't be a problem for builds, but
you'll get a runtime error from
devm_reset_control_array_get_exclusive() always when
CONFIG_RESET_CONTROLLER=n.

I guess it must be a corner case, but just to be sure.

The CONFIG_RESET_CONTROLLER=y at least for ARM32 Tegra builds.

https://elixir.bootlin.com/linux/v5.11-rc5/source/arch/arm/mach-tegra/Kconfig#L15

Not sure about ARM64.