[PATCH 1/2] gpu: host1x: Register child devices

[PATCH 1/2] gpu: host1x: Register child devices

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

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
host1x driver explicitly register its children.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/gpu/host1x/dev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 3c0f151847ba..d0ebb70e2fdd 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -470,8 +470,14 @@ static int host1x_probe(struct platform_device *pdev)
 	if (err < 0)
 		goto deinit_debugfs;
 
+	err = devm_of_platform_populate(&pdev->dev);
+	if (err < 0)
+		goto unregister;
+
 	return 0;
 
+unregister:
+	host1x_unregister(host);
 deinit_debugfs:
 	host1x_debug_deinit(host);
 	host1x_intr_deinit(host);
-- 
2.24.1

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[PATCH 2/2] drm/tegra: hub: Register child devices

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

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>
---
 drivers/gpu/drm/tegra/hub.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/tegra/hub.c b/drivers/gpu/drm/tegra/hub.c
index a2ef8f218d4e..22a03f7ffdc1 100644
--- 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;
 }
 
-- 
2.24.1

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