[PATCH v2 0/3] Introduce EC-based watchdog
From: Lukasz Majczak
Date: Thu Jan 18 2024 - 14:53:49 EST
Chromeos devices are equipped with the embedded controller (EC)
that can be used as a watchdog. The following patches
updates the structures and definitions required to
communicate with EC-based watchdog and implements the
driver itself.
The first version of this patch was sent here:
https://patchwork.kernel.org/project/linux-watchdog/patch/20240117102450.4080839-1-lma@xxxxxxxxxxxx/
Changelog
V1->V2:
* Splitted into three patches
* Supplement the watchdog configuration with min/max timeouts
* Removed struct cros_ec_wdt_data and get aligned to watchdog framework
* Simplified suspend/resume callbacks
* Removed excessive log messages
* Reworked cros_ec_wdt_send_hang_detect() function to be more generic
* Usage of devm_* allowed to delete .remove module callback
* Changed MODULE_ALIAS to MODULE_DEVICE_TABLE
* Moved clearing bootstatus (on EC) to probe() and thanks to that
got rid of .shutdown() module callback
* Fixed/removed comments, removed unused includes and general cleanup
Best regards,
Lukasz
Lukasz Majczak (3):
platform/chrome: Update binary interface for EC-based watchdog
watchdog: Add ChromeOS EC-based watchdog driver
mfd: cros_ec: Register EC-based watchdog subdevice
MAINTAINERS | 6 +
drivers/mfd/cros_ec_dev.c | 9 +
drivers/watchdog/Kconfig | 11 +
drivers/watchdog/Makefile | 1 +
drivers/watchdog/cros_ec_wdt.c | 202 ++++++++++++++++++
.../linux/platform_data/cros_ec_commands.h | 78 +++----
6 files changed, 264 insertions(+), 43 deletions(-)
create mode 100644 drivers/watchdog/cros_ec_wdt.c
--
2.43.0.429.g432eaa2c6b-goog