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Subject[PATCH 44/60] drm/tilcdc: Add support for the nomodeset kernel parameter
Date
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@redhat.com>
---

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

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 3ddb7c710a3d..25fe1f8de6bd 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -606,6 +606,9 @@ static struct platform_driver tilcdc_platform_driver = {

static int __init tilcdc_drm_init(void)
{
+ if (drm_firmware_drivers_only())
+ return -ENODEV;
+
DBG("init");
tilcdc_panel_init();
return platform_driver_register(&tilcdc_platform_driver);
--
2.33.1
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