From 5f825973b491a457c7233e808ecf64726abbeb86 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Fri, 17 Dec 2021 01:37:39 +0100 Subject: [PATCH] drm/hyperv: 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: Deepak Rawat Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-25-javierm@redhat.com --- drivers/gpu/drm/hyperv/hyperv_drm_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c index 00e53de..4a8941f 100644 --- a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c +++ b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c @@ -305,6 +305,9 @@ static int __init hyperv_init(void) { int ret; + if (drm_firmware_drivers_only()) + return -ENODEV; + ret = pci_register_driver(&hyperv_pci_driver); if (ret != 0) return ret; -- 2.7.4