On Mär 15 2019, Yash Shah <yash.shah@xxxxxxxxxx> wrote: > You need to make sure the period setting is passed via the > conventional way in DT file. > Example: > pwmleds { > compatible = "pwm-leds"; > heartbeat { > pwms = <&L45 0 10000000 0>; > max-brightness = <255>; > linux,default-trigger = "heartbeat"; > }; > }; I've now managed to build a working FSBL with that change, but that didn't change anything. There is not even a heartbeat option in /sys/class/leds/heartbeat/trigger any more. Andreas. -- Andreas Schwab, SUSE Labs, schwab@xxxxxxx GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."