Hello Noralf, On 12/15/21 22:37, Noralf Trønnes wrote: > > > Den 15.12.2021 01.59, skrev Javier Martinez Canillas: >> According to disable Documentation/admin-guide/kernel-parameters.txt, this >> parameter can be used to disable kernel modesetting. >> >> DRM drivers will not perform display-mode changes or accelerated rendering >> and only the systewm system framebuffer will be available if it was set-up. >> >> But only a few DRM drivers currently check for nomodeset, make this driver >> to also support the command line parameter. >> >> Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> >> --- >> > > I don't understand why this is applicable to USB drivers, there's no way > the firmware can setup a framebuffer and continue pushing pixels over > USB when Linux has been given control over the USB bus? > > The same argument goes for the SPI drivers in drm/tiny/ as well. > That's a very good point. I included these mostly for consistency but if it's OK for the KMS drivers to just ignore the "nomodeset" parameter, I could drop all that are not for devices in the PCI or platform buses. Best regards, -- Javier Martinez Canillas Linux Engineering Red Hat
