Messages in this thread | | | From | Evan Benn <> | Subject | [PATCH v2 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls. | Date | Fri, 21 Feb 2020 16:38:00 +1100 |
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This is currently supported in firmware deployed on oak, hana and elm mt8173 chromebook devices. The kernel driver is written to be a generic SMC watchdog driver.
Arm Trusted Firmware upstreaming review: https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/3405
Patch to add oak, hana, elm device tree: https://lore.kernel.org/linux-arm-kernel/20200110073730.213789-1-hsinyi@chromium.org/ I would like to add the device tree support after the above patch is accepted.
Changes in v2: - Change name arm > mt8173 - use watchdog_stop_on_reboot - use watchdog_stop_on_unregister - use devm_watchdog_register_device - remove smcwd_shutdown, smcwd_remove - change error codes
Evan Benn (1): dt-bindings: watchdog: Add mt8173,smc-wdt watchdog
Julius Werner (1): watchdog: Add new mt8173_smc_wdt watchdog driver
.../bindings/watchdog/mt8173,smc-wdt.yaml | 30 ++++ MAINTAINERS | 7 + arch/arm64/configs/defconfig | 1 + drivers/watchdog/Kconfig | 13 ++ drivers/watchdog/Makefile | 1 + drivers/watchdog/mt8173_smc_wdt.c | 160 ++++++++++++++++++ 6 files changed, 212 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/mt8173,smc-wdt.yaml create mode 100644 drivers/watchdog/mt8173_smc_wdt.c
-- 2.25.0.265.gbab2e86ba0-goog
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