diff mbox series

[v2,22/37] drm/exynos: Add support for the nomodeset kernel parameter

Message ID 20211217003752.3946210-23-javierm@redhat.com (mailing list archive)
State Mainlined, archived
Headers show
Series drm: Make drivers to honour the nomodeset parameter | expand

Commit Message

Javier Martinez Canillas Dec. 17, 2021, 12:37 a.m. UTC 
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>
---

(no changes since v1)

 drivers/gpu/drm/exynos/exynos_drm_drv.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index d8f1cf4d6b69..f9f10413a4f2 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -464,6 +464,9 @@  static int exynos_drm_init(void)
 {
 	int ret;
 
+	if (drm_firmware_drivers_only())
+		return -ENODEV;
+
 	ret = exynos_drm_register_devices();
 	if (ret)
 		return ret;