On 16.06.25 06:13, Nick Chan wrote:

On 10/6/2025 23:29, Sven Peter wrote:

quoted

From: Hector Martin <redacted>

This driver implements the reboot/shutdown support exposed by the SMC
on Apple Silicon machines, such as Apple M1 Macs.

Signed-off-by: Hector Martin <redacted>
Reviewed-by: Alyssa Rosenzweig <redacted>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Reviewed-by: Sebastian Reichel <redacted>
Signed-off-by: Sven Peter <sven@kernel.org>
---
  MAINTAINERS                         |   1 +
  drivers/power/reset/Kconfig         |   9 ++
  drivers/power/reset/Makefile        |   1 +
  drivers/power/reset/macsmc-reboot.c | 290 ++++++++++++++++++++++++++++++++++++
  4 files changed, 301 insertions(+)

[...]

It seems that the reboot driver still probes even without the smc_reboot node in the smc node:

That's odd...

Lee, is it expected that a mfd sub-device declared with
MFD_CELL_OF("macsmc-reboot", NULL, NULL, 0, 0, "apple,smc-reboot"),
is loaded even if there's no corresponding node in the device tree?

I'll have to re-add the check that makes sure the sub-device is 
available then.


Thanks,


Sven