1 files changed, 82 insertions, 35 deletions

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 82918eec6d2..7ebe50b335e 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -31,6 +31,7 @@
 #include <linux/debugfs.h>
 #include <linux/io.h>
 #include <linux/device.h>
+#include <linux/regulator/consumer.h>
 
 #include <plat/display.h>
 #include <plat/clock.h>
@@ -47,6 +48,10 @@ static struct {
 	struct clk      *dss_54m_fck;
 	struct clk	*dss_96m_fck;
 	unsigned	num_clks_enabled;
+
+	struct regulator *vdds_dsi_reg;
+	struct regulator *vdds_sdi_reg;
+	struct regulator *vdda_dac_reg;
 } core;
 
 static void dss_clk_enable_all_no_ctx(void);
@@ -284,9 +289,11 @@ static void dss_clk_enable_no_ctx(enum dss_clock clks)
 
 void dss_clk_enable(enum dss_clock clks)
 {
+	bool check_ctx = core.num_clks_enabled == 0;
+
 	dss_clk_enable_no_ctx(clks);
 
-	if (cpu_is_omap34xx() && dss_need_ctx_restore())
+	if (check_ctx && cpu_is_omap34xx() && dss_need_ctx_restore())
 		restore_all_ctx();
 }
 
@@ -352,6 +359,50 @@ static void dss_clk_disable_all(void)
 	dss_clk_disable(clks);
 }
 
+/* REGULATORS */
+
+struct regulator *dss_get_vdds_dsi(void)
+{
+	struct regulator *reg;
+
+	if (core.vdds_dsi_reg != NULL)
+		return core.vdds_dsi_reg;
+
+	reg = regulator_get(&core.pdev->dev, "vdds_dsi");
+	if (!IS_ERR(reg))
+		core.vdds_dsi_reg = reg;
+
+	return reg;
+}
+
+struct regulator *dss_get_vdds_sdi(void)
+{
+	struct regulator *reg;
+
+	if (core.vdds_sdi_reg != NULL)
+		return core.vdds_sdi_reg;
+
+	reg = regulator_get(&core.pdev->dev, "vdds_sdi");
+	if (!IS_ERR(reg))
+		core.vdds_sdi_reg = reg;
+
+	return reg;
+}
+
+struct regulator *dss_get_vdda_dac(void)
+{
+	struct regulator *reg;
+
+	if (core.vdda_dac_reg != NULL)
+		return core.vdda_dac_reg;
+
+	reg = regulator_get(&core.pdev->dev, "vdda_dac");
+	if (!IS_ERR(reg))
+		core.vdda_dac_reg = reg;
+
+	return reg;
+}
+
 /* DEBUGFS */
 #if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
 static void dss_debug_dump_clocks(struct seq_file *s)
@@ -397,10 +448,12 @@ static int dss_initialize_debugfs(void)
 	debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
 			&dss_debug_dump_clocks, &dss_debug_fops);
 
+#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
 	debugfs_create_file("dispc_irq", S_IRUGO, dss_debugfs_dir,
 			&dispc_dump_irqs, &dss_debug_fops);
+#endif
 
-#ifdef CONFIG_OMAP2_DSS_DSI
+#if defined(CONFIG_OMAP2_DSS_DSI) && defined(CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS)
 	debugfs_create_file("dsi_irq", S_IRUGO, dss_debugfs_dir,
 			&dsi_dump_irqs, &dss_debug_fops);
 #endif
@@ -473,7 +526,7 @@ static int omap_dss_probe(struct platform_device *pdev)
 	}
 #endif
 
-	r = dpi_init();
+	r = dpi_init(pdev);
 	if (r) {
 		DSSERR("Failed to initialize dpi\n");
 		goto fail0;
@@ -718,16 +771,14 @@ static int dss_driver_probe(struct device *dev)
 
 	dss_init_device(core.pdev, dssdev);
 
-	/* skip this if the device is behind a ctrl */
-	if (!dssdev->panel.ctrl) {
-		force = pdata->default_device == dssdev;
-		dss_recheck_connections(dssdev, force);
-	}
+	force = pdata->default_device == dssdev;
+	dss_recheck_connections(dssdev, force);
 
 	r = dssdrv->probe(dssdev);
 
 	if (r) {
 		DSSERR("driver probe failed: %d\n", r);
+		dss_uninit_device(core.pdev, dssdev);
 		return r;
 	}
 
@@ -760,6 +811,13 @@ int omap_dss_register_driver(struct omap_dss_driver *dssdriver)
 	dssdriver->driver.bus = &dss_bus_type;
 	dssdriver->driver.probe = dss_driver_probe;
 	dssdriver->driver.remove = dss_driver_remove;
+
+	if (dssdriver->get_resolution == NULL)
+		dssdriver->get_resolution = omapdss_default_get_resolution;
+	if (dssdriver->get_recommended_bpp == NULL)
+		dssdriver->get_recommended_bpp =
+			omapdss_default_get_recommended_bpp;
+
 	return driver_register(&dssdriver->driver);
 }
 EXPORT_SYMBOL(omap_dss_register_driver);
@@ -808,8 +866,6 @@ static void omap_dss_dev_release(struct device *dev)
 int omap_dss_register_device(struct omap_dss_device *dssdev)
 {
 	static int dev_num;
-	static int panel_num;
-	int r;
 
 	WARN_ON(!dssdev->driver_name);
 
@@ -818,36 +874,12 @@ int omap_dss_register_device(struct omap_dss_device *dssdev)
 	dssdev->dev.parent = &dss_bus;
 	dssdev->dev.release = omap_dss_dev_release;
 	dev_set_name(&dssdev->dev, "display%d", dev_num++);
-	r = device_register(&dssdev->dev);
-	if (r)
-		return r;
-
-	if (dssdev->ctrl.panel) {
-		struct omap_dss_device *panel = dssdev->ctrl.panel;
-
-		panel->panel.ctrl = dssdev;
-
-		reset_device(&panel->dev, 1);
-		panel->dev.bus = &dss_bus_type;
-		panel->dev.parent = &dssdev->dev;
-		panel->dev.release = omap_dss_dev_release;
-		dev_set_name(&panel->dev, "panel%d", panel_num++);
-		r = device_register(&panel->dev);
-		if (r)
-			return r;
-	}
-
-	return 0;
+	return device_register(&dssdev->dev);
 }
 
 void omap_dss_unregister_device(struct omap_dss_device *dssdev)
 {
 	device_unregister(&dssdev->dev);
-
-	if (dssdev->ctrl.panel) {
-		struct omap_dss_device *panel = dssdev->ctrl.panel;
-		device_unregister(&panel->dev);
-	}
 }
 
 /* BUS */
@@ -901,6 +933,21 @@ static int __init omap_dss_init(void)
 
 static void __exit omap_dss_exit(void)
 {
+	if (core.vdds_dsi_reg != NULL) {
+		regulator_put(core.vdds_dsi_reg);
+		core.vdds_dsi_reg = NULL;
+	}
+
+	if (core.vdds_sdi_reg != NULL) {
+		regulator_put(core.vdds_sdi_reg);
+		core.vdds_sdi_reg = NULL;
+	}
+
+	if (core.vdda_dac_reg != NULL) {
+		regulator_put(core.vdda_dac_reg);
+		core.vdda_dac_reg = NULL;
+	}
+
 	platform_driver_unregister(&omap_dss_driver);
 
 	omap_dss_bus_unregister();