OMAP3+: voltage: remove unneeded debugfs interface

Remove read-only debugfs interface to VP values.  Most of the values
are init-time only and never change.  Current voltage value should be
retreived from the (eventual) regulator framework interface to the
voltage domain.

Fixes to original version provided by Nishanth Menon <nm@ti.com>

Signed-off-by: Kevin Hilman <khilman@ti.com>
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index 34c01a7..bb606c9 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -62,6 +62,7 @@
 
 static struct omap_sr_class_data *sr_class;
 static struct omap_sr_pmic_data *sr_pmic_data;
+static struct dentry		*sr_dbg_dir;
 
 static inline void sr_write_reg(struct omap_sr *sr, unsigned offset, u32 value)
 {
@@ -826,9 +827,10 @@
 	struct omap_sr *sr_info = kzalloc(sizeof(struct omap_sr), GFP_KERNEL);
 	struct omap_sr_data *pdata = pdev->dev.platform_data;
 	struct resource *mem, *irq;
-	struct dentry *vdd_dbg_dir, *nvalue_dir;
+	struct dentry *nvalue_dir;
 	struct omap_volt_data *volt_data;
 	int i, ret = 0;
+	char *name;
 
 	if (!sr_info) {
 		dev_err(&pdev->dev, "%s: unable to allocate sr_info\n",
@@ -899,18 +901,25 @@
 	}
 
 	dev_info(&pdev->dev, "%s: SmartReflex driver initialized\n", __func__);
-
-	/*
-	 * If the voltage domain debugfs directory is not created, do
-	 * not try to create rest of the debugfs entries.
-	 */
-	vdd_dbg_dir = omap_voltage_get_dbgdir(sr_info->voltdm);
-	if (!vdd_dbg_dir) {
-		ret = -EINVAL;
-		goto err_iounmap;
+	if (!sr_dbg_dir) {
+		sr_dbg_dir = debugfs_create_dir("smartreflex", NULL);
+		if (!sr_dbg_dir) {
+			ret = PTR_ERR(sr_dbg_dir);
+			pr_err("%s:sr debugfs dir creation failed(%d)\n",
+				__func__, ret);
+			goto err_iounmap;
+		}
 	}
 
-	sr_info->dbg_dir = debugfs_create_dir("smartreflex", vdd_dbg_dir);
+	name = kasprintf(GFP_KERNEL, "sr_%s", sr_info->voltdm->name);
+	if (!name) {
+		dev_err(&pdev->dev, "%s: Unable to alloc debugfs name\n",
+			__func__);
+		ret = -ENOMEM;
+		goto err_iounmap;
+	}
+	sr_info->dbg_dir = debugfs_create_dir(name, sr_dbg_dir);
+	kfree(name);
 	if (IS_ERR(sr_info->dbg_dir)) {
 		dev_err(&pdev->dev, "%s: Unable to create debugfs directory\n",
 			__func__);