]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/base/platform.c
h63xx: nfs mount works, gpe image boots to ts config screen.
[linux-2.6-omap-h63xx.git] / drivers / base / platform.c
index e621dade7eaa1dae63fec357aaa94fe661573222..dfcbfe504867e9db43ea944c55cda9eae9328556 100644 (file)
@@ -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);