From c474e9f2be9992861d926eea3e5d4fb393cd6e2a Mon Sep 17 00:00:00 2001 From: Benson Leung Date: Tue, 5 Jun 2018 14:05:29 -0700 Subject: platform/chrome: chromeos_tbmc - fix SPDX identifier Original submission was GPLv2 only, so mark as GPL-2.0. Also restored some descriptive lines that were there before. Signed-off-by: Benson Leung --- drivers/platform/chrome/chromeos_tbmc.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/platform/chrome/chromeos_tbmc.c b/drivers/platform/chrome/chromeos_tbmc.c index b935df6a9694..1e81f8144c0d 100644 --- a/drivers/platform/chrome/chromeos_tbmc.c +++ b/drivers/platform/chrome/chromeos_tbmc.c @@ -1,8 +1,16 @@ -// SPDX-License-Identifier: GPL-2.0+ +// SPDX-License-Identifier: GPL-2.0 // Driver to detect Tablet Mode for ChromeOS convertible. // // Copyright (C) 2017 Google, Inc. // Author: Gwendal Grignou +// +// On Chromebook using ACPI, this device listens for notification +// from GOOG0006 and issue method TBMC to retrieve the status. +// +// GOOG0006 issues the notification when it receives EC_HOST_EVENT_MODE_CHANGE +// from the EC. +// Method TBMC reads EC_ACPI_MEM_DEVICE_ORIENTATION byte from the shared +// memory region. #include #include -- cgit v1.2.3-59-g8ed1b