linux-kernel - [PATCH v3 0/2] Handle CrOS EC Panics

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Message-ID: <20230104011524.369764-1-robbarnes@google.com>
Date:   Wed,  4 Jan 2023 01:15:22 +0000
From:   Rob Barnes <robbarnes@...gle.com>
To:     groeck@...omium.org, pmalani@...omium.org
Cc:     chrome-platform@...ts.linux.dev, linux-kernel@...r.kernel.org,
        dtor@...omium.org, Rob Barnes <robbarnes@...gle.com>
Subject: [PATCH v3 0/2] Handle CrOS EC Panics

Currently the OS ignores EC panics when they occur.
After reporting a panic, the EC will force a hard reset,
possibly after a short delay. This may cause loss of data.

These patches add a handler for CrOS EC panics. When
a panic is detected the OS will attempt to flush critical
data for debugging purposes and attempt an orderly shutdown.

Changelog since v2:
- Minor updates to commit messages

Changelog since v1:
- Updated commit messages
- Split into two patches
- Moved panic handle before mkbp loop
- Switched to dev_emerg


Rob Barnes (2):
  platform/chrome: cros_ec: Poll EC log on EC panic
  platform/chrome: cros_ec: Shutdown on EC Panic

 drivers/platform/chrome/cros_ec_debugfs.c   | 23 +++++++++++++++++++++
 drivers/platform/chrome/cros_ec_lpc.c       | 10 +++++++++
 include/linux/platform_data/cros_ec_proto.h |  9 ++++++++
 3 files changed, 42 insertions(+)

-- 
2.39.0.314.g84b9a713c41-goog