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platform/chrome: cros_ec_debugfs: Add debugfs ABI documentation

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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>
This commit is contained in:
Enric Balletbo i Serra 2019-06-14 12:23:47 +02:00
parent cb78a163c1
commit 1fbc6ec2f3
1 changed files with 26 additions and 0 deletions
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26
Documentation/ABI/testing/debugfs-cros-ec
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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 What: /sys/kernel/debug/<cros-ec-device>/uptime
Date: June 2019 Date: June 2019
KernelVersion: 5.3 KernelVersion: 5.3