Implement google_chromeec_lightbar_off() to allow the host to
explicitly disable the Chrome EC lightbar. This is achieved by
sending the LIGHTBAR_CMD_OFF sub-command via the multiplexed
EC_CMD_LIGHTBAR_CMD host command.
This API is useful for power-saving scenarios or UI synchronization
during specific boot modes, such as low-battery or off-mode charging.
BUG=None
TEST=Verified that the lightbar turns off when this function is
called on supported hardware.
Change-Id: Ic118dbd5e9af64d06490dd16aa115aca2c1df3a5
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91377
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
5f9a1ad962