drm/tegra: hub: Register child devices

In order to remove the dependency on the simple-bus compatible string,
which causes the OF driver core to register all child devices, make the
display-hub driver explicitly register the display controller children.

Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/gpu/drm/tegra/hub.c b/drivers/gpu/drm/tegra/hub.c
index a2ef8f218d4ece462b4da4b72867728af23f2eee..22a03f7ffdc12f91cee667089dc79b9f9603bf13 100644 (file)
--- a/drivers/gpu/drm/tegra/hub.c
+++ b/drivers/gpu/drm/tegra/hub.c
@@ -948,6 +948,15 @@ static int tegra_display_hub_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "failed to register host1x client: %d\n",
                        err);
 
+       err = devm_of_platform_populate(&pdev->dev);
+       if (err < 0)
+               goto unregister;
+
+       return err;
+
+unregister:
+       host1x_client_unregister(&hub->client);
+       pm_runtime_disable(&pdev->dev);
        return err;
 }