u-boot/arch/sandbox/dts
Paul Doelle 1fc45d6483 watchdog: add pulse support to gpio watchdog driver
A common external watchdog circuit is kept alive by triggering a short
pulse on the reset pin. This patch adds support for this use case, while
making the algorithm configurable in the devicetree.

The "linux,wdt-gpio" driver being modified is based off the equivalent
driver in the Linux kernel, which provides support for this algorithm.
This patch brings parity to this driver, and is kept aligned with
the functionality and devicetree configuration in the kernel.

It should be noted that this adds a required property named 'hw_algo'
to the devicetree binding, following suit with the kernel. I'm happy to
make this backward-compatible if preferred.

Signed-off-by: Paul Doelle <paaull.git@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-07-21 08:09:06 +02:00
..
include Makefile: Support include files for .dts files 2014-06-20 11:55:03 -06:00
cros-ec-keyboard.dtsi sandbox: avoid duplicate backslash input 2020-10-06 09:07:54 -06:00
Makefile dts: automatically build necessary .dtb files 2022-02-09 12:26:12 -07:00
overlay0.dts sandbox: Add license headers to the dts files 2021-09-16 13:19:25 -04:00
overlay1.dts sandbox: Add license headers to the dts files 2021-09-16 13:19:25 -04:00
sandbox.dts sandbox: net: Remove fake-host-hwaddr 2022-06-08 13:59:52 -04:00
sandbox.dtsi sandbox: Add a build for VPL 2022-05-02 09:58:13 -04:00
sandbox64.dts sandbox: net: Remove fake-host-hwaddr 2022-06-08 13:59:52 -04:00
sandbox_pmic.dtsi dm: sandbox: i2c: Use new emulator parent uclass 2018-11-29 09:30:05 -07:00
test.dts watchdog: add pulse support to gpio watchdog driver 2022-07-21 08:09:06 +02:00