[PATCH 2/8] drm/atmel-hlcdc: add support for the nomodeset kernel parameter

[Ludovic Desroches]

According to Documentation/admin-guide/kernel-parameters.txt, this
parameter can be used to disable kernel modesetting.

Signed-off-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxxxxxx>
Reviewed-by: Dharma Balasubiramani <dharma.b@xxxxxxxxxxxxx>
Reviewed-by: Manikandan Muralidharan <manikandan.m@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
index 8ed029381c555db10d596efc8d52753c47767633..8ff582a394794aacf84f9e23fd59f123445926a3 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -858,6 +858,9 @@ static int atmel_hlcdc_dc_drm_probe(struct platform_device *pdev)
 	struct drm_device *ddev;
 	int ret;
 
+	if (drm_firmware_drivers_only())
+		return -ENODEV;
+
 	dc = devm_drm_dev_alloc(&pdev->dev, &atmel_hlcdc_dc_driver, struct atmel_hlcdc_dc, dev);
 	if (IS_ERR(dc))
 		return PTR_ERR(dc);

-- 
2.51.0