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    Subject[PATCH 25/60] drm/msm: 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/msm/msm_drv.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
    index 7936e8d498dd..eb098475224b 100644
    --- a/drivers/gpu/drm/msm/msm_drv.c
    +++ b/drivers/gpu/drm/msm/msm_drv.c
    @@ -518,6 +518,9 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
    struct msm_mdss *mdss;
    int ret, i;

    + if (drm_firmware_drivers_only())
    + return -ENODEV;
    +
    ddev = drm_dev_alloc(drv, dev);
    if (IS_ERR(ddev)) {
    DRM_DEV_ERROR(dev, "failed to allocate drm_device\n");
    --
    2.33.1
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