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/aspeed/aspeed_gfx_drv.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c index b53fee6f1c17..c70d8f046816 100644 --- a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c +++ b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c @@ -310,6 +310,9 @@ static int aspeed_gfx_probe(struct platform_device *pdev) struct aspeed_gfx *priv; int ret;
+ if (drm_firmware_drivers_only()) + return -ENODEV; + priv = devm_drm_dev_alloc(&pdev->dev, &aspeed_gfx_driver, struct aspeed_gfx, drm); if (IS_ERR(priv))