[PATCH 56/60] drm/tve200: Add support for the nomodeset kernel parameter

From: Javier Martinez Canillas
Date: Tue Dec 14 2021 - 20:03:40 EST


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@xxxxxxxxxx>
---

drivers/gpu/drm/tve200/tve200_drv.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/tve200/tve200_drv.c b/drivers/gpu/drm/tve200/tve200_drv.c
index 7fa71c8bb828..afa3a2771650 100644
--- a/drivers/gpu/drm/tve200/tve200_drv.c
+++ b/drivers/gpu/drm/tve200/tve200_drv.c
@@ -158,6 +158,9 @@ static int tve200_probe(struct platform_device *pdev)
int irq;
int ret;

+ if (drm_firmware_drivers_only())
+ return -ENODEV;
+
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
--
2.33.1