1 files changed, 65 insertions, 15 deletions

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 3f940393d6c7..dfcbfe504867 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -42,10 +42,8 @@ struct resource *platform_get_resource(struct platform_device *dev,
 	for (i = 0; i < dev->num_resources; i++) {
 		struct resource *r = &dev->resource[i];
 
-		if ((r->flags & (IORESOURCE_IO|IORESOURCE_MEM|
-				 IORESOURCE_IRQ|IORESOURCE_DMA)) == type)
-			if (num-- == 0)
-				return r;
+		if (type == resource_type(r) && num-- == 0)
+			return r;
 	}
 	return NULL;
 }
@@ -78,10 +76,8 @@ struct resource *platform_get_resource_byname(struct platform_device *dev,
 	for (i = 0; i < dev->num_resources; i++) {
 		struct resource *r = &dev->resource[i];
 
-		if ((r->flags & (IORESOURCE_IO|IORESOURCE_MEM|
-				 IORESOURCE_IRQ|IORESOURCE_DMA)) == type)
-			if (!strcmp(r->name, name))
-				return r;
+		if (type == resource_type(r) && !strcmp(r->name, name))
+			return r;
 	}
 	return NULL;
 }
@@ -259,9 +255,9 @@ int platform_device_add(struct platform_device *pdev)
 
 		p = r->parent;
 		if (!p) {
-			if (r->flags & IORESOURCE_MEM)
+			if (resource_type(r) == IORESOURCE_MEM)
 				p = &iomem_resource;
-			else if (r->flags & IORESOURCE_IO)
+			else if (resource_type(r) == IORESOURCE_IO)
 				p = &ioport_resource;
 		}
 
@@ -282,9 +278,14 @@ int platform_device_add(struct platform_device *pdev)
 		return ret;
 
  failed:
-	while (--i >= 0)
-		if (pdev->resource[i].flags & (IORESOURCE_MEM|IORESOURCE_IO))
-			release_resource(&pdev->resource[i]);
+	while (--i >= 0) {
+		struct resource *r = &pdev->resource[i];
+		unsigned long type = resource_type(r);
+
+		if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
+			release_resource(r);
+	}
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(platform_device_add);
@@ -306,7 +307,9 @@ void platform_device_del(struct platform_device *pdev)
 
 		for (i = 0; i < pdev->num_resources; i++) {
 			struct resource *r = &pdev->resource[i];
-			if (r->flags & (IORESOURCE_MEM|IORESOURCE_IO))
+			unsigned long type = resource_type(r);
+
+			if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
 				release_resource(r);
 		}
 	}
@@ -391,6 +394,53 @@ error:
 }
 EXPORT_SYMBOL_GPL(platform_device_register_simple);
 
+/**
+ * platform_device_register_data
+ * @parent: parent device for the device we're adding
+ * @name: base name of the device we're adding
+ * @id: instance id
+ * @data: platform specific data for this platform device
+ * @size: size of platform specific data
+ *
+ * This function creates a simple platform device that requires minimal
+ * resource and memory management. Canned release function freeing memory
+ * allocated for the device allows drivers using such devices to be
+ * unloaded without waiting for the last reference to the device to be
+ * dropped.
+ */
+struct platform_device *platform_device_register_data(
+		struct device *parent,
+		const char *name, int id,
+		const void *data, size_t size)
+{
+	struct platform_device *pdev;
+	int retval;
+
+	pdev = platform_device_alloc(name, id);
+	if (!pdev) {
+		retval = -ENOMEM;
+		goto error;
+	}
+
+	pdev->dev.parent = parent;
+
+	if (size) {
+		retval = platform_device_add_data(pdev, data, size);
+		if (retval)
+			goto error;
+	}
+
+	retval = platform_device_add(pdev);
+	if (retval)
+		goto error;
+
+	return pdev;
+
+error:
+	platform_device_put(pdev);
+	return ERR_PTR(retval);
+}
+
 static int platform_drv_probe(struct device *_dev)
 {
 	struct platform_driver *drv = to_platform_driver(_dev->driver);
@@ -862,7 +912,7 @@ static int platform_pm_restore_noirq(struct device *dev)
 
 #endif /* !CONFIG_HIBERNATION */
 
-struct pm_ext_ops platform_pm_ops = {
+static struct pm_ext_ops platform_pm_ops = {
 	.base = {
 		.prepare = platform_pm_prepare,
 		.complete = platform_pm_complete,