[PATCH v3 0/6] Improved sysreset/watchdog uclass integration

[Stefan Roese]

On 04.11.21 04:55, Samuel Holland wrote:
> This series hooks up the watchdog uclass to automatically register
> watchdog devices for use with sysreset, doing a bit of minor cleanup
> along the way.
> 
> The goal is for this to replace the sunxi board-level non-DM reset_cpu()
> function. I was surprised to find that the wdt_reboot driver requires
> its own undocumented device tree node, which references the watchdog
> device by phandle. This is problematic for us, because sunxi-u-boot.dtsi
> file covers 20 different SoCs with varying watchdog node phandle names.
> So it would have required adding a -u-boot.dtsi file for each board.
> 
> Hooking things up automatically makes sense to me; this is what Linux
> does. However, I put the code behind a new option to avoid surprises for
> other platforms.
> 
> Changes in v3:
>   - Move condition to wdt-uclass.c to fix build errors.
>   - Include watchdog name in error message.
> 
> Changes in v2:
>   - Extend the "if SYSRESET" block to the end of the file.
>   - Also make gpio_reboot_probe function static.
>   - Rebase on top of 492ee6b8d0e7 (now handle all watchdogs).
>   - Added patches 5-6 as an example of how the new option will be used.
> 
> Samuel Holland (6):
>    sysreset: Add uclass Kconfig dependency to drivers
>    sysreset: Mark driver probe functions as static
>    sysreset: watchdog: Move watchdog reference to plat data
>    watchdog: Automatically register device with sysreset
>    sunxi: Avoid duplicate reset_cpu with SYSRESET enabled
>    sunxi: Use sysreset framework for poweroff/reset
> 
>   arch/arm/Kconfig                     |  3 +++
>   arch/arm/mach-sunxi/board.c          |  2 ++
>   drivers/sysreset/Kconfig             | 11 ++++++--
>   drivers/sysreset/sysreset_gpio.c     |  2 +-
>   drivers/sysreset/sysreset_resetctl.c |  2 +-
>   drivers/sysreset/sysreset_syscon.c   |  2 +-
>   drivers/sysreset/sysreset_watchdog.c | 40 ++++++++++++++++++++++------
>   drivers/watchdog/wdt-uclass.c        |  8 ++++++
>   include/sysreset.h                   | 10 +++++++
>   9 files changed, 67 insertions(+), 13 deletions(-)
> 

Applied to u-boot-marvell

Thanks,
Stefan