winbond/w83627dhg: Fix logical device power down in ACPI

The W83627DHG has some power managements bits to power down individual
logical devices. These are called `* Power Down`. Counterintuitively and
in contrast to `Immediate Power Down` (bit to power down the whole chip),
these bits are set when the respective logical device is powered.

Unfortunately, our ACPI code set them wrong which led to disabled
devices after a S3 suspend/resume. Adding an option how to set the PM
bits and setting them to zero for the W83627DHG, corrects it.

Tested with kontron/ktqm77.

Change-Id: I8a472d480d4277721bd17c9f7c2ce44fa84e8ae2
Signed-off-by: Nico Huber <>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <>
4 files changed