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    Subject[PATCH 19/60] drm/kmb: 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/kmb/kmb_drv.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/drivers/gpu/drm/kmb/kmb_drv.c b/drivers/gpu/drm/kmb/kmb_drv.c
    index ed2424350773..56a59ee71755 100644
    --- a/drivers/gpu/drm/kmb/kmb_drv.c
    +++ b/drivers/gpu/drm/kmb/kmb_drv.c
    @@ -484,6 +484,9 @@ static int kmb_probe(struct platform_device *pdev)
    struct device_node *dsi_node;
    struct platform_device *dsi_pdev;

    + if (drm_firmware_drivers_only())
    + return -ENODEV;
    +
    /* The bridge (ADV 7535) will return -EPROBE_DEFER until it
    * has a mipi_dsi_host to register its device to. So, we
    * first register the DSI host during probe time, and then return
    --
    2.33.1
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