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@xxxxxxxxxx> --- drivers/gpu/drm/kmb/kmb_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/kmb/kmb_drv.c b/drivers/gpu/drm/kmb/kmb_drv.c index ed2424350773..56a59ee71755 100644 --- a/drivers/gpu/drm/kmb/kmb_drv.c +++ b/drivers/gpu/drm/kmb/kmb_drv.c @@ -484,6 +484,9 @@ static int kmb_probe(struct platform_device *pdev) struct device_node *dsi_node; struct platform_device *dsi_pdev; + if (drm_firmware_drivers_only()) + return -ENODEV; + /* The bridge (ADV 7535) will return -EPROBE_DEFER until it * has a mipi_dsi_host to register its device to. So, we * first register the DSI host during probe time, and then return -- 2.33.1
