linux-kernel - [PATCH 3/3] platform/chrome: cros_ec_debugfs: Add debugfs ABI documentation

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Message-Id: <20190614111551.28686-3-enric.balletbo@collabora.com>
Date:   Fri, 14 Jun 2019 13:15:51 +0200
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     linux-kernel@...r.kernel.org
Cc:     Collabora Kernel ML <kernel@...labora.com>, groeck@...omium.org,
        bleung@...omium.org, dtor@...omium.org,
        Tim Wawrzynczak <twawrzynczak@...omium.org>
Subject: [PATCH 3/3] platform/chrome: cros_ec_debugfs: Add debugfs ABI documentation

Add the missing ABI documentation for the already available debugfs
entries: console_log, panicinfo and pdinfo.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
---

 Documentation/ABI/testing/debugfs-cros-ec | 26 +++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/Documentation/ABI/testing/debugfs-cros-ec b/Documentation/ABI/testing/debugfs-cros-ec
index c91da2d374aa..573a82d23c89 100644
--- a/Documentation/ABI/testing/debugfs-cros-ec
+++ b/Documentation/ABI/testing/debugfs-cros-ec
@@ -1,3 +1,29 @@
+What:		/sys/kernel/debug/<cros-ec-device>/console_log
+Date:		September 2017
+KernelVersion:	4.13
+Description:
+		If the EC supports the CONSOLE_READ command type, this file
+		can be used to grab the EC logs. The kernel polls for the log
+		and keeps its own buffer but userspace should grab this and
+		write it out to some logs.
+
+What:		/sys/kernel/debug/<cros-ec-device>/panicinfo
+Date:		September 2017
+KernelVersion:	4.13
+Description:
+		This file dumps the EC panic information from the previous
+		reboot. This file will only exist if the PANIC_INFO command
+		type is supported by the EC.
+
+What:		/sys/kernel/debug/<cros-ec-device>/pdinfo
+Date:		June 2018
+KernelVersion:	4.17
+Description:
+		This file provides the port role, muxes and power debug
+		information for all the USB PD/type-C ports available. If
+		the are no ports available, this file will be just an empty
+		file.
+
 What:		/sys/kernel/debug/<cros-ec-device>/uptime
 Date:		June 2019
 KernelVersion:	5.3
-- 
2.20.1