The syscon-poweroff driver powers off the machine by writing a value to a register. Both the register and the value are configured via the device tree. I encountered a situation where I need to mask the written value - some values of the register must remain unchanged during the power-down. (This is required to turn on the i.mx6ul using the RTC. See [1] for more details.) Unfortunately, the property of the register value is currently named mask, so we can't just add a "mask" property. The solutions I could think of: 1) Add a new mask property and name it "mask_mask" or something like that. 2) Create a new "syscon-masked-poweroff" driver that will have value and mask properties. What do you think? [1] https://www.spinics.net/lists/arm-kernel/msg555580.html -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html