On 10/11/19 2:57 PM, Schlüßler, Timo wrote: > I will, sorry for the inconvenience. np >>> 1. How to handle power management? Does the driver have to restore the >>> previous gpio state? >> I'm not sure if a framework takes care of this. Have you had a look at other GPIO drivers in drivers/gpio: > >> gpio-74x164.c >> gpio-max3191x.c >> gpio-max7301.c >> gpio-mc33880.c >> gpio-xra1403.c > > All of these seem to not handle power management at all, but others > do a complete register bank restore, e.g. gpio-brcmstb.c or > gpio-pxa.c. So I think it would be best to support this in the > mcp251x driver as well. ACK Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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