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| author |   Javier Martinez Canillas <javierm@redhat.com> | 2021-12-17 01:37:44 +0100 |
|---|---|---|
| committer | Javier Martinez Canillas <javierm@redhat.com> | 2022-01-27 19:15:49 +0100 |
| commit | 5d40a4b8d824e346bb5db96d651f2f5c57953d63 (patch) | |
| tree | 58c76901bf1c74b709500ce75a4c2837842edc55 | |
| parent | drm/mediatek: Add support for the nomodeset kernel parameter (diff) | |
| download | wireguard-linux-5d40a4b8d824e346bb5db96d651f2f5c57953d63.tar.xz wireguard-linux-5d40a4b8d824e346bb5db96d651f2f5c57953d63.zip | |
drm/msm: 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: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-30-javierm@redhat.com
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 892c04365239..8f30e68ae3b5 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -518,6 +518,9 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) struct msm_mdss *mdss; int ret, i; + if (drm_firmware_drivers_only()) + return -ENODEV; + ddev = drm_dev_alloc(drv, dev); if (IS_ERR(ddev)) { DRM_DEV_ERROR(dev, "failed to allocate drm_device\n"); |