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> Patch-cc:Tian Tao <tiantao6@xxxxxxxxxxxxx> --- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c index 610fc8e135f9..f66de93831c6 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c @@ -315,6 +315,9 @@ static int hibmc_pci_probe(struct pci_dev *pdev, struct drm_device *dev; int ret; + if (drm_firmware_drivers_only()) + return -ENODEV; + ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &hibmc_driver); if (ret) return ret; -- 2.33.1
