Hi all, Am Freitag, 9. Juni 2023, 09:41:14 CEST schrieb Linus Walleij: > On Wed, Jun 7, 2023 at 2:55 PM Matthias Schiffer > > <matthias.schiffer@xxxxxxxxxxxxxxx> wrote: > > It is not clear to me what alternative options we currently have if we > > want a setting to be effective from the very beginning, before > > userspace is running. Of course adding a cmdline option would work, but > > that seems worse than having it in the DT in every possible way. > > A agree with Mark that a command line option isn't that bad. It's something > that pertains to just the Linux kernel after all? And you can put that > command line option in the default device tree, in chosen, if you want. I don't like the idea of a command line enabling realtime scheduling for all instances of the SPI controller driver or even all SPI controllers. Actually this might be worse if a non-rt SPI bus is considered for RT scheduling. IMHO this should be configurable per SPI controller, e.g. a sysfs attribute. > No-one is going to > complain about that. IIRC someone (maybe Greg K-H) opposed pretty hard against (module) parameters for (driver) configuration, but I can't find the post to back my statement. Best regards, Alexander > Yours, > Linus Walleij > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany Amtsgericht München, HRB 105018 Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider http://www.tq-group.com/
