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drm/rockchip: Add support for the nomodeset kernel parameter

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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 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>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-33-javierm@redhat.com
This commit is contained in:
Javier Martinez Canillas 2021-12-17 01:37:47 +01:00
parent fce8bfffa2
commit 09037781c1
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GPG Key ID: C751E590D63F3D69
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
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@ -457,6 +457,9 @@ static int __init rockchip_drm_init(void)
{
int ret;
if (drm_firmware_drivers_only())
return -ENODEV;
num_rockchip_sub_drivers = 0;
ADD_ROCKCHIP_SUB_DRIVER(vop_platform_driver, CONFIG_DRM_ROCKCHIP);
ADD_ROCKCHIP_SUB_DRIVER(rockchip_lvds_driver,