Hello Markus, On Thu, May 23, 2024 at 09:58:14AM +0200, Markus Schneider-Pargmann wrote: > Hi, > > to support wakeup from Partial-IO using serial pins of mcu_uart0 and > wkup_uart0, this series adds a new pinctrl state 'wakeup' in which > specific wakeup flags are set on these pins. Partial-IO is a poweroff > state of the SoC in which only a few pingroups are partly powered. > > If the user enabled wakeup from the serial port, the pinctrl state is > selected on shutdown. For another deep sleep state, which is comparable > with suspend to memory, the same pinctrl state is selected on suspend as > well. > ... > > After enabling Wake-on-LAN the system can be powered off and will enter > the Partial-IO state in which it can be woken up by activity on the > specific pins: > ethtool -s can0 wol p > ethtool -s can1 wol p > poweroff Confused ... Why the CAN? This is about the UART. Francesco