platform/x86: ideapad-laptop: Expose conservation mode switch

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This exposes the battery conservation mode present on some (?) IdeaPads.
The mode is set by calling ACPI method SBMC with argument 3 (on) or
5 (off). Status is reported in bit 5 of the return value of ACPI method
GBMD.

Signed-off-by: Hao Wei Tee <angelsl@in04.sg>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

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Hao Wei Tee 2017-08-15 00:13:51 +08:00 • committed by Andy Shevchenko

parent c977b98bbe

commit ade5029618

1 changed files with 69 additions and 0 deletions

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drivers/platform/x86/ideapad-laptop.c

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