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 <javi...@redhat.com> --- drivers/gpu/drm/tiny/repaper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c index 97a775c48cea..ea97b8c06157 100644 --- a/drivers/gpu/drm/tiny/repaper.c +++ b/drivers/gpu/drm/tiny/repaper.c @@ -968,6 +968,9 @@ static int repaper_probe(struct spi_device *spi) const void *match; int ret; + if (drm_firmware_drivers_only()) + return -ENODEV; + match = device_get_match_data(dev); if (match) { model = (enum repaper_model)match; -- 2.33.1