Re: [PATCH u-boot-mvebu] watchdog: armada_37xx: Probe driver also when watchdog is already running

On Wed, 23 Feb 2022 14:21:40 +0100 Pali Rohár pali@kernel.org wrote:

If Armada 37xx watchdog is started before U-Boot then CNTR_CTRL_ACTIVE bit is set, U-Boot armada-37xx-wdt.c driver fails to initialize and so U-Boot is unable to use or kick this watchdog.

Do not check for CNTR_CTRL_ACTIVE bit and always initialize watchdog. Same behavior is implemented in Linux kernel driver.

This change allows to activate watchdog in firmware which loads U-Boot.

Signed-off-by: Pali Rohár pali@kernel.org

Reviewed-by: Marek Behún marek.behun@nic.cz