On 2/16/21 10:06 AM, Torin Cooper-Bennun wrote: > On Mon, 15 Feb 2021 at 17:44, Marc Kleine-Budde wrote: >> Do you have the wake-gpio in your DT? This one works for me: > > We actually don't break out WAKE on our board, and using this board > I've written a TCAN4550 driver for MCUs and haven't required device > wake-up via WAKE or other means. > > My DT: > > | tcan4x5x: tcan4x5x@0 { > | reg = <0>; > | compatible = "ti,tcan4x5x"; > | pinctrl-names = "default"; > | pinctrl-0 = <&tcan4x5x_pins>; > | spi-max-frequency = <4000000>; > | bosch,mram-cfg = <0x0 0 0 10 0 0 0 10>; Your mram-cfg looks broken, You don't have any TX Event FIFO entries. Please use this one: bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>; Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |