[PATCH v2 02/16] drm/exynos: remove in_bridge_node from exynos_dsi

[Michael Tretter]

We do not need to keep a reference to the in_bridge_node, but we can
simply drop it, once we found and attached the previous bridge.

Signed-off-by: Michael Tretter <m.tretter at pengutronix.de>
---
v2: none
---
 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 1a1a2853a842..29f941b02210 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -282,7 +282,6 @@ struct exynos_dsi {
 	struct list_head transfer_list;
 
 	const struct exynos_dsi_driver_data *driver_data;
-	struct device_node *in_bridge_node;
 };
 
 #define host_to_dsi(host) container_of(host, struct exynos_dsi, dsi_host)
@@ -1684,8 +1683,6 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi)
 	if (ret < 0)
 		return ret;
 
-	dsi->in_bridge_node = of_graph_get_remote_node(node, DSI_PORT_IN, 0);
-
 	return 0;
 }
 
@@ -1695,6 +1692,7 @@ static int exynos_dsi_bind(struct device *dev, struct device *master,
 	struct drm_encoder *encoder = dev_get_drvdata(dev);
 	struct exynos_dsi *dsi = encoder_to_dsi(encoder);
 	struct drm_device *drm_dev = data;
+	struct device_node *in_bridge_node;
 	struct drm_bridge *in_bridge;
 	int ret;
 
@@ -1706,10 +1704,12 @@ static int exynos_dsi_bind(struct device *dev, struct device *master,
 	if (ret < 0)
 		return ret;
 
-	if (dsi->in_bridge_node) {
-		in_bridge = of_drm_find_bridge(dsi->in_bridge_node);
+	in_bridge_node = of_graph_get_remote_node(dev->of_node, DSI_PORT_IN, 0);
+	if (in_bridge_node) {
+		in_bridge = of_drm_find_bridge(in_bridge_node);
 		if (in_bridge)
 			drm_bridge_attach(encoder, in_bridge, NULL, 0);
+		of_node_put(in_bridge_node);
 	}
 
 	return mipi_dsi_host_register(&dsi->dsi_host);
@@ -1830,17 +1830,12 @@ static int exynos_dsi_probe(struct platform_device *pdev)
 
 err_disable_runtime:
 	pm_runtime_disable(dev);
-	of_node_put(dsi->in_bridge_node);
 
 	return ret;
 }
 
 static int exynos_dsi_remove(struct platform_device *pdev)
 {
-	struct exynos_dsi *dsi = platform_get_drvdata(pdev);
-
-	of_node_put(dsi->in_bridge_node);
-
 	pm_runtime_disable(&pdev->dev);
 
 	component_del(&pdev->dev, &exynos_dsi_component_ops);
-- 
2.20.1