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@redhat.com ---
drivers/gpu/drm/gud/gud_drv.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/gud/gud_drv.c b/drivers/gpu/drm/gud/gud_drv.c index 3f9d4b9a1e3d..4d253d249512 100644 --- a/drivers/gpu/drm/gud/gud_drv.c +++ b/drivers/gpu/drm/gud/gud_drv.c @@ -446,6 +446,9 @@ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id) u32 *formats; int ret, i;
+ if (drm_firmware_drivers_only()) + return -ENODEV; + ret = usb_find_bulk_out_endpoint(intf->cur_altsetting, &bulk_out); if (ret) return ret;