From: Javier Martinez Canillas Date: Fri, 17 Dec 2021 00:37:50 +0000 (+0100) Subject: drm/tegra: Add support for the nomodeset kernel parameter X-Git-Tag: v5.18-rc1~134^2~14^2~120 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=93804f5d2dd2f9c1b7f45fe630a2f5302ae0dcfb;p=thirdparty%2Flinux.git drm/tegra: 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 Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-36-javierm@redhat.com --- diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 8d37d6b00562a..48e35d6864735 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -1382,6 +1382,9 @@ static int __init host1x_drm_init(void) { int err; + if (drm_firmware_drivers_only()) + return -ENODEV; + err = host1x_driver_register(&host1x_drm_driver); if (err < 0) return err;