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Subject[PATCH 01/60] drm/komeda: 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/arm/display/komeda/komeda_drv.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
index e7933930a657..4f6d5c2103ec 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
@@ -9,6 +9,7 @@
#include <linux/platform_device.h>
#include <linux/component.h>
#include <linux/pm_runtime.h>
+#include <drm/drm_drv.h>
#include <drm/drm_of.h>
#include "komeda_dev.h"
#include "komeda_kms.h"
@@ -117,6 +118,9 @@ static int komeda_platform_probe(struct platform_device *pdev)
struct component_match *match = NULL;
struct device_node *child;

+ if (drm_firmware_drivers_only())
+ return -EINVAL;
+
if (!dev->of_node)
return -ENODEV;

--
2.33.1
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