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    Subject[PATCH 30/60] drm/pl111: 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/pl111/pl111_drv.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c
    index 520301b405f1..7a316c8d8301 100644
    --- a/drivers/gpu/drm/pl111/pl111_drv.c
    +++ b/drivers/gpu/drm/pl111/pl111_drv.c
    @@ -243,6 +243,9 @@ static int pl111_amba_probe(struct amba_device *amba_dev,
    struct drm_device *drm;
    int ret;

    + if (drm_firmware_drivers_only())
    + return -ENODEV;
    +
    priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
    if (!priv)
    return -ENOMEM;
    --
    2.33.1
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