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/sprd/sprd_drm.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/sprd/sprd_drm.c b/drivers/gpu/drm/sprd/sprd_drm.c index a077e2d4d721..dd7e3de780f3 100644 --- a/drivers/gpu/drm/sprd/sprd_drm.c +++ b/drivers/gpu/drm/sprd/sprd_drm.c @@ -186,6 +186,9 @@ static struct platform_driver *sprd_drm_drivers[] = {
static int __init sprd_drm_init(void) { + if (drm_firmware_drivers_only()) + return -ENODEV; + return platform_register_drivers(sprd_drm_drivers, ARRAY_SIZE(sprd_drm_drivers)); }