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 <[email protected]> --- drivers/gpu/drm/tiny/gm12u320.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c index 6bc0c298739c..b9a5f4969337 100644 --- a/drivers/gpu/drm/tiny/gm12u320.c +++ b/drivers/gpu/drm/tiny/gm12u320.c @@ -636,6 +636,9 @@ static int gm12u320_usb_probe(struct usb_interface *interface, struct drm_device *dev; int ret; + if (drm_firmware_drivers_only()) + return -ENODEV; + /* * The gm12u320 presents itself to the system as 2 usb mass-storage * interfaces, we only care about / need the first one. -- 2.33.1
