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/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,
--
2.33.1
