5 files changed, 30 insertions, 74 deletions

diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 394c129cfb3b..0a485c5b982e 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -5409,11 +5409,14 @@ static int dsi_probe(struct platform_device *pdev)
 
 	/* DSI on OMAP3 doesn't have register DSI_GNQ, set number
 	 * of data to 3 by default */
-	if (dsi->data->quirks & DSI_QUIRK_GNQ)
+	if (dsi->data->quirks & DSI_QUIRK_GNQ) {
+		dsi_runtime_get(dsi);
 		/* NB_DATA_LANES */
 		dsi->num_lanes_supported = 1 + REG_GET(dsi, DSI_GNQ, 11, 9);
-	else
+		dsi_runtime_put(dsi);
+	} else {
 		dsi->num_lanes_supported = 3;
+	}
 
 	r = dsi_init_output(dsi);
 	if (r)
@@ -5426,15 +5429,19 @@ static int dsi_probe(struct platform_device *pdev)
 	}
 
 	r = of_platform_populate(dev->of_node, NULL, NULL, dev);
-	if (r)
+	if (r) {
 		DSSERR("Failed to populate DSI child devices: %d\n", r);
+		goto err_uninit_output;
+	}
 
 	r = component_add(&pdev->dev, &dsi_component_ops);
 	if (r)
-		goto err_uninit_output;
+		goto err_of_depopulate;
 
 	return 0;
 
+err_of_depopulate:
+	of_platform_depopulate(dev);
 err_uninit_output:
 	dsi_uninit_output(dsi);
 err_pm_disable:
@@ -5470,19 +5477,12 @@ static int dsi_runtime_suspend(struct device *dev)
 	/* wait for current handler to finish before turning the DSI off */
 	synchronize_irq(dsi->irq);
 
-	dispc_runtime_put(dsi->dss->dispc);
-
 	return 0;
 }
 
 static int dsi_runtime_resume(struct device *dev)
 {
 	struct dsi_data *dsi = dev_get_drvdata(dev);
-	int r;
-
-	r = dispc_runtime_get(dsi->dss->dispc);
-	if (r)
-		return r;
 
 	dsi->is_enabled = true;
 	/* ensure the irq handler sees the is_enabled value */
diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
index 1aaf260aa9b8..7553c7fc1c45 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss.c
+++ b/drivers/gpu/drm/omapdrm/dss/dss.c
@@ -1484,16 +1484,23 @@ static int dss_probe(struct platform_device *pdev)
 						   dss);
 
 	/* Add all the child devices as components. */
+	r = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
+	if (r)
+		goto err_uninit_debugfs;
+
 	omapdss_gather_components(&pdev->dev);
 
 	device_for_each_child(&pdev->dev, &match, dss_add_child_component);
 
 	r = component_master_add_with_match(&pdev->dev, &dss_component_ops, match);
 	if (r)
-		goto err_uninit_debugfs;
+		goto err_of_depopulate;
 
 	return 0;
 
+err_of_depopulate:
+	of_platform_depopulate(&pdev->dev);
+
 err_uninit_debugfs:
 	dss_debugfs_remove_file(dss->debugfs.clk);
 	dss_debugfs_remove_file(dss->debugfs.dss);
@@ -1522,6 +1529,8 @@ static int dss_remove(struct platform_device *pdev)
 {
 	struct dss_device *dss = platform_get_drvdata(pdev);
 
+	of_platform_depopulate(&pdev->dev);
+
 	component_master_del(&pdev->dev, &dss_component_ops);
 
 	dss_debugfs_remove_file(dss->debugfs.clk);
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
index cf6230eac31a..aabdda394c9c 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
@@ -635,10 +635,14 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
 
 	hdmi->dss = dss;
 
-	r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
+	r = hdmi_runtime_get(hdmi);
 	if (r)
 		return r;
 
+	r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
+	if (r)
+		goto err_runtime_put;
+
 	r = hdmi4_cec_init(hdmi->pdev, &hdmi->core, &hdmi->wp);
 	if (r)
 		goto err_pll_uninit;
@@ -652,12 +656,16 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
 	hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
 					       hdmi);
 
+	hdmi_runtime_put(hdmi);
+
 	return 0;
 
 err_cec_uninit:
 	hdmi4_cec_uninit(&hdmi->core);
 err_pll_uninit:
 	hdmi_pll_uninit(&hdmi->pll);
+err_runtime_put:
+	hdmi_runtime_put(hdmi);
 	return r;
 }
 
@@ -833,32 +841,6 @@ static int hdmi4_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int hdmi_runtime_suspend(struct device *dev)
-{
-	struct omap_hdmi *hdmi = dev_get_drvdata(dev);
-
-	dispc_runtime_put(hdmi->dss->dispc);
-
-	return 0;
-}
-
-static int hdmi_runtime_resume(struct device *dev)
-{
-	struct omap_hdmi *hdmi = dev_get_drvdata(dev);
-	int r;
-
-	r = dispc_runtime_get(hdmi->dss->dispc);
-	if (r < 0)
-		return r;
-
-	return 0;
-}
-
-static const struct dev_pm_ops hdmi_pm_ops = {
-	.runtime_suspend = hdmi_runtime_suspend,
-	.runtime_resume = hdmi_runtime_resume,
-};
-
 static const struct of_device_id hdmi_of_match[] = {
 	{ .compatible = "ti,omap4-hdmi", },
 	{},
@@ -869,7 +851,6 @@ struct platform_driver omapdss_hdmi4hw_driver = {
 	.remove		= hdmi4_remove,
 	.driver         = {
 		.name   = "omapdss_hdmi",
-		.pm	= &hdmi_pm_ops,
 		.of_match_table = hdmi_of_match,
 		.suppress_bind_attrs = true,
 	},
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
index b0e4a7463f8c..9e8556f67a29 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
@@ -825,32 +825,6 @@ static int hdmi5_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int hdmi_runtime_suspend(struct device *dev)
-{
-	struct omap_hdmi *hdmi = dev_get_drvdata(dev);
-
-	dispc_runtime_put(hdmi->dss->dispc);
-
-	return 0;
-}
-
-static int hdmi_runtime_resume(struct device *dev)
-{
-	struct omap_hdmi *hdmi = dev_get_drvdata(dev);
-	int r;
-
-	r = dispc_runtime_get(hdmi->dss->dispc);
-	if (r < 0)
-		return r;
-
-	return 0;
-}
-
-static const struct dev_pm_ops hdmi_pm_ops = {
-	.runtime_suspend = hdmi_runtime_suspend,
-	.runtime_resume = hdmi_runtime_resume,
-};
-
 static const struct of_device_id hdmi_of_match[] = {
 	{ .compatible = "ti,omap5-hdmi", },
 	{ .compatible = "ti,dra7-hdmi", },
@@ -862,7 +836,6 @@ struct platform_driver omapdss_hdmi5hw_driver = {
 	.remove		= hdmi5_remove,
 	.driver         = {
 		.name   = "omapdss_hdmi5",
-		.pm	= &hdmi_pm_ops,
 		.of_match_table = hdmi_of_match,
 		.suppress_bind_attrs = true,
 	},
diff --git a/drivers/gpu/drm/omapdrm/dss/venc.c b/drivers/gpu/drm/omapdrm/dss/venc.c
index ff0b18c8e4ac..b5f52727f8b1 100644
--- a/drivers/gpu/drm/omapdrm/dss/venc.c
+++ b/drivers/gpu/drm/omapdrm/dss/venc.c
@@ -946,19 +946,12 @@ static int venc_runtime_suspend(struct device *dev)
 	if (venc->tv_dac_clk)
 		clk_disable_unprepare(venc->tv_dac_clk);
 
-	dispc_runtime_put(venc->dss->dispc);
-
 	return 0;
 }
 
 static int venc_runtime_resume(struct device *dev)
 {
 	struct venc_device *venc = dev_get_drvdata(dev);
-	int r;
-
-	r = dispc_runtime_get(venc->dss->dispc);
-	if (r < 0)
-		return r;
 
 	if (venc->tv_dac_clk)
 		clk_prepare_enable(venc->tv_dac_clk);