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authorJavier Martinez Canillas <javierm@redhat.com>2021-12-17 01:37:51 +0100
committerJavier Martinez Canillas <javierm@redhat.com>2022-01-27 19:15:50 +0100
commit9b71ce89b55565ecce1b189e216048cd1348e36a (patch)
tree726a5eae4174769d0236bdd036b2cd2717eb85bb /drivers/gpu
parent93804f5d2dd2f9c1b7f45fe630a2f5302ae0dcfb (diff)
downloadlinux-9b71ce89b55565ecce1b189e216048cd1348e36a.tar.bz2
drm/tilcdc: Add support for the nomodeset kernel parameter
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> Acked-by: Jyri Sarha <jyri.sarha@iki.fi> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-37-javierm@redhat.com
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_drv.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index cc567c87057d..eee3c447fbac 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -604,6 +604,9 @@ static struct platform_driver tilcdc_platform_driver = {
static int __init tilcdc_drm_init(void)
{
+ if (drm_firmware_drivers_only())
+ return -ENODEV;
+
DBG("init");
tilcdc_panel_init();
return platform_driver_register(&tilcdc_platform_driver);