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[v1,0/2] power: reset: Add Toradex Embedded Controller

Message ID 20250407114947.41421-1-francesco@dolcini.it
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Series power: reset: Add Toradex Embedded Controller | expand

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Francesco Dolcini April 7, 2025, 11:49 a.m. UTC
From: Francesco Dolcini <francesco.dolcini@toradex.com>

This series adds support for the Toradex Embedded Controller, currently used on
Toradex SMARC iMX95 and iMX8MP boards.

The EC provides board power-off, reset and GPIO expander functionalities.

We did send an RFC before,
https://lore.kernel.org/all/20250313144331.70591-1-francesco@dolcini.it/, with
reference to the discussion about implementing this as a MFD, we decided to
just have a power/reset driver, given we do not see a need to expand the
functionalities we already have.

Emanuele Ghidoli (2):
  dt-bindings: firmware: add toradex,smarc-ec
  power: reset: add Toradex Embedded Controller

 .../power/reset/toradex,smarc-ec.yaml         |  52 ++++++
 MAINTAINERS                                   |   7 +
 drivers/power/reset/Kconfig                   |  13 ++
 drivers/power/reset/Makefile                  |   1 +
 drivers/power/reset/tdx-ec-poweroff.c         | 150 ++++++++++++++++++
 5 files changed, 223 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/reset/toradex,smarc-ec.yaml
 create mode 100644 drivers/power/reset/tdx-ec-poweroff.c