From: Javier Martinez Canillas Date: Fri, 17 Dec 2021 00:37:37 +0000 (+0100) Subject: drm/exynos: Add support for the nomodeset kernel parameter X-Git-Tag: v6.6.17~3937^2~23^2~3152 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=87a628abd8b038e414dab7de379fc2ebd0971372;p=platform%2Fkernel%2Flinux-rpi.git drm/exynos: 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/20211217003752.3946210-23-javierm@redhat.com --- diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index d8f1cf4..f9f1041 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -464,6 +464,9 @@ static int exynos_drm_init(void) { int ret; + if (drm_firmware_drivers_only()) + return -ENODEV; + ret = exynos_drm_register_devices(); if (ret) return ret;