Apologies I forgot to add this note to my cover letter. Xingyu do you mind seeing if you can modify your ATF firmware to match this driver? We can add a compatible or make other changes to suit you. Thanks On Fri, Apr 3, 2020 at 4:29 PM Evan Benn <evanbenn@xxxxxxxxxxxx> wrote: > > 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@xxxxxxxxxxxx/ > I would like to add the device tree support after the above patch is > accepted. > > Changes in v3: > - Change name back to arm > - Add optional get_timeleft op > - change name to arm_smc_wdt > > 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 ARM smc wdt for mt8173 watchdog > > Julius Werner (1): > watchdog: Add new arm_smd_wdt watchdog driver > > .../bindings/watchdog/arm-smc-wdt.yaml | 30 +++ > MAINTAINERS | 7 + > arch/arm64/configs/defconfig | 1 + > drivers/watchdog/Kconfig | 13 ++ > drivers/watchdog/Makefile | 1 + > drivers/watchdog/arm_smc_wdt.c | 181 ++++++++++++++++++ > 6 files changed, 233 insertions(+) > create mode 100644 Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml > create mode 100644 drivers/watchdog/arm_smc_wdt.c > > -- > 2.26.0.292.g33ef6b2f38-goog >
