[PATCH 27/60] drm/omap: Add support for the nomodeset kernel parameter
Javier Martinez Canillas
javierm at redhat.com
Wed Dec 15 00:59:35 UTC 2021
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 systewm 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 at redhat.com>
---
drivers/gpu/drm/omapdrm/omap_drv.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index 2720a58ccd90..eaf67b9e5f12 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -727,6 +727,9 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
DBG("%s", dev_name(dev));
+ if (drm_firmware_drivers_only())
+ return -ENODEV;
+
/* Allocate and initialize the DRM device. */
ddev = drm_dev_alloc(&omap_drm_driver, dev);
if (IS_ERR(ddev))
--
2.33.1
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