From: Javier Martinez Canillas Date: Fri, 17 Dec 2021 00:37:44 +0000 (+0100) Subject: drm/msm: Add support for the nomodeset kernel parameter X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5d40a4b8d824e346bb5db96d651f2f5c57953d63;p=linux.git 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 Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-30-javierm@redhat.com --- diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 892c04365239b..8f30e68ae3b53 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");