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authorJavier Martinez Canillas <javierm@redhat.com>2021-12-17 03:37:39 +0300
committerJavier Martinez Canillas <javierm@redhat.com>2022-01-27 21:15:48 +0300
commit5f825973b491a457c7233e808ecf64726abbeb86 (patch)
tree2e4ffcd862f283265c3a98481beb93fbcd2f3f6d /drivers/gpu/drm/hyperv/hyperv_drm_drv.c
parentba4a28bb168aefa98ee422be8e04a0c964256f95 (diff)
downloadlinux-5f825973b491a457c7233e808ecf64726abbeb86.tar.xz
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 <javierm@redhat.com> Acked-by: Deepak Rawat <drawat.floss@gmail.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-25-javierm@redhat.com
Diffstat (limited to 'drivers/gpu/drm/hyperv/hyperv_drm_drv.c')
-rw-r--r--drivers/gpu/drm/hyperv/hyperv_drm_drv.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c
index 00e53de4812b..4a8941fa0815 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;