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@collabora.com>

1 files changed, 26 insertions, 0 deletions

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