power: reset: add Toradex Embedded Controller

Browse source

Toradex SMARC iMX8MP and SMARC iMX95 SoM modules use a small Embedded
Controller (EC) to manage power and reset functions and related SMARC
signals.

This driver implements power-off and reboot handlers, communicating with
the EC via I2C to issue the appropriate power management commands.

During probe, the driver logs the Embedded Controller ID (unique ID for
each SMARC board supported) in hex format along with the firmware version.

Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20250414171455.155155-3-francesco@dolcini.it
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

...

This commit is contained in:

Emanuele Ghidoli 2025-04-14 19:14:55 +02:00 • committed by Sebastian Reichel

parent 1cf87b00a7

commit 18672fe123

4 changed files with 165 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

MAINTAINERS

View file

13

drivers/power/reset/Kconfig

View file

1

drivers/power/reset/Makefile

View file

150

drivers/power/reset/tdx-ec-poweroff.c

View file