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 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 ---
(no changes since v1)
drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index bec207de4544..ac190e2b1f7a 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -457,6 +457,9 @@ static int __init rockchip_drm_init(void) { int ret;
+ if (drm_firmware_drivers_only()) + return -ENODEV; + num_rockchip_sub_drivers = 0; ADD_ROCKCHIP_SUB_DRIVER(vop_platform_driver, CONFIG_DRM_ROCKCHIP); ADD_ROCKCHIP_SUB_DRIVER(rockchip_lvds_driver,