On 22.02.2022 16:32:10, Sean Nyekjaer wrote: > On Tue, Feb 22, 2022 at 04:19:01PM +0100, Marc Kleine-Budde wrote: > > On 22.02.2022 16:03:34, Sean Nyekjaer wrote: > > > The TCAN4x5x device have 2 wake pins. One for waking the host controller > > > and one for waking the tcan controller it self. > > > > > > We only have the wake for the tcan controller it self implemented > > > right? > > > > Sort of. The tcan driver contains handling for the device_state_gpio. I > > think should be the pin from the tcan to SoC. The handling of this pin > > looks fishy. > > Ah, Okay so state-gpio maps to nWKRQ and wake-gpio maps to WAKE. > I don't think one should wire the WAKE pin to the SoC. I think that's one way (the only one?) to get the device out of sleep mode? 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 |
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