1 files changed, 42 insertions, 25 deletions

diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index fbfe92a816d4..b5089b772267 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -812,7 +812,7 @@ static const struct drm_connector_funcs tegra_dsi_connector_funcs = {
 
 static enum drm_mode_status
 tegra_dsi_connector_mode_valid(struct drm_connector *connector,
-			       struct drm_display_mode *mode)
+			       const struct drm_display_mode *mode)
 {
 	return MODE_OK;
 }
@@ -1544,9 +1544,11 @@ static int tegra_dsi_ganged_probe(struct tegra_dsi *dsi)
 	np = of_parse_phandle(dsi->dev->of_node, "nvidia,ganged-mode", 0);
 	if (np) {
 		struct platform_device *gangster = of_find_device_by_node(np);
+		of_node_put(np);
+		if (!gangster)
+			return -EPROBE_DEFER;
 
 		dsi->slave = platform_get_drvdata(gangster);
-		of_node_put(np);
 
 		if (!dsi->slave) {
 			put_device(&gangster->dev);
@@ -1562,7 +1564,6 @@ static int tegra_dsi_ganged_probe(struct tegra_dsi *dsi)
 static int tegra_dsi_probe(struct platform_device *pdev)
 {
 	struct tegra_dsi *dsi;
-	struct resource *regs;
 	int err;
 
 	dsi = devm_kzalloc(&pdev->dev, sizeof(*dsi), GFP_KERNEL);
@@ -1594,44 +1595,57 @@ static int tegra_dsi_probe(struct platform_device *pdev)
 
 	if (!pdev->dev.pm_domain) {
 		dsi->rst = devm_reset_control_get(&pdev->dev, "dsi");
-		if (IS_ERR(dsi->rst))
-			return PTR_ERR(dsi->rst);
+		if (IS_ERR(dsi->rst)) {
+			err = PTR_ERR(dsi->rst);
+			goto remove;
+		}
 	}
 
 	dsi->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(dsi->clk))
-		return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk),
-				     "cannot get DSI clock\n");
+	if (IS_ERR(dsi->clk)) {
+		err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk),
+				    "cannot get DSI clock\n");
+		goto remove;
+	}
 
 	dsi->clk_lp = devm_clk_get(&pdev->dev, "lp");
-	if (IS_ERR(dsi->clk_lp))
-		return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_lp),
-				     "cannot get low-power clock\n");
+	if (IS_ERR(dsi->clk_lp)) {
+		err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_lp),
+				    "cannot get low-power clock\n");
+		goto remove;
+	}
 
 	dsi->clk_parent = devm_clk_get(&pdev->dev, "parent");
-	if (IS_ERR(dsi->clk_parent))
-		return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_parent),
-				     "cannot get parent clock\n");
+	if (IS_ERR(dsi->clk_parent)) {
+		err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_parent),
+				    "cannot get parent clock\n");
+		goto remove;
+	}
 
 	dsi->vdd = devm_regulator_get(&pdev->dev, "avdd-dsi-csi");
-	if (IS_ERR(dsi->vdd))
-		return dev_err_probe(&pdev->dev, PTR_ERR(dsi->vdd),
-				     "cannot get VDD supply\n");
+	if (IS_ERR(dsi->vdd)) {
+		err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->vdd),
+				    "cannot get VDD supply\n");
+		goto remove;
+	}
 
 	err = tegra_dsi_setup_clocks(dsi);
 	if (err < 0) {
 		dev_err(&pdev->dev, "cannot setup clocks\n");
-		return err;
+		goto remove;
 	}
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	dsi->regs = devm_ioremap_resource(&pdev->dev, regs);
-	if (IS_ERR(dsi->regs))
-		return PTR_ERR(dsi->regs);
+	dsi->regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(dsi->regs)) {
+		err = PTR_ERR(dsi->regs);
+		goto remove;
+	}
 
 	dsi->mipi = tegra_mipi_request(&pdev->dev, pdev->dev.of_node);
-	if (IS_ERR(dsi->mipi))
-		return PTR_ERR(dsi->mipi);
+	if (IS_ERR(dsi->mipi)) {
+		err = PTR_ERR(dsi->mipi);
+		goto remove;
+	}
 
 	dsi->host.ops = &tegra_dsi_host_ops;
 	dsi->host.dev = &pdev->dev;
@@ -1659,9 +1673,12 @@ static int tegra_dsi_probe(struct platform_device *pdev)
 	return 0;
 
 unregister:
+	pm_runtime_disable(&pdev->dev);
 	mipi_dsi_host_unregister(&dsi->host);
 mipi_free:
 	tegra_mipi_free(dsi->mipi);
+remove:
+	tegra_output_remove(&dsi->output);
 	return err;
 }
 
@@ -1694,5 +1711,5 @@ struct platform_driver tegra_dsi_driver = {
 		.of_match_table = tegra_dsi_of_match,
 	},
 	.probe = tegra_dsi_probe,
-	.remove_new = tegra_dsi_remove,
+	.remove = tegra_dsi_remove,
 };