The BOOT_BEEP gpio is used to activate the buffer which
isolates the I2S signals from PCH while doing a beep from depthcharge.
It needs to be lo to deactivate the buffer for audio playback from OS.
BUG=chrome-os-partner:47124
BRANCH=None
TEST=boot depthcharge & test beep with devbeep.
Boot OS and test audio playback.
Change-Id: I047513f6cbe9590820dfe3c369161a157864be97
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: d0e04d6792a4511630b8111d0f4a64226042f3e6
Original-Change-Id: I0fa8f425ac413798740343823d026c6300c8eef1
Original-Signed-off-by: Rohit Ainapure <rohit.m.ainapure@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/319220
Original-Commit-Ready: Rohit M Ainapure <rohit.m.ainapure@intel.com>
Original-Tested-by: Michael Rang <michael.rang@intel.com>
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/12988
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
244cf2ecda