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Message-Id: <20211217003752.3946210-23-javierm@redhat.com>
Date: Fri, 17 Dec 2021 01:37:37 +0100
From: Javier Martinez Canillas <javierm@...hat.com>
To: linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Cc: Javier Martinez Canillas <javierm@...hat.com>,
Inki Dae <inki.dae@...sung.com>,
Joonyoung Shim <jy0922.shim@...sung.com>
Subject: [PATCH v2 22/37] drm/exynos: 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@...hat.com>
---
(no changes since v1)
drivers/gpu/drm/exynos/exynos_drm_drv.c | 3 +++
1 file changed, 3 insertions(+)
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;
--
2.33.1
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