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Subject[PATCH 60/60] drm/xlnx: 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/xlnx/zynqmp_dpsub.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c
index ac37053412a1..cca55b8a8cf1 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c
@@ -191,6 +191,9 @@ static int zynqmp_dpsub_probe(struct platform_device *pdev)
struct zynqmp_dpsub *dpsub;
int ret;

+ if (drm_firmware_drivers_only())
+ return -ENODEV;
+
/* Allocate private data. */
dpsub = devm_drm_dev_alloc(&pdev->dev, &zynqmp_dpsub_drm_driver,
struct zynqmp_dpsub, drm);
--
2.33.1
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