linux-4.4.1/platform_device_add() の変更点

• 追加された行はこの色です。
• 削除された行はこの色です。
• linux-4.4.1/platform_device_add() へ行く。
• linux-4.4.1/platform_device_add() の差分を削除

*参照元 [#t625f128]
#backlinks

*説明 [#n98ca22f]
-パス: [[linux-4.4.1/drivers/base/platform.c]]

-FIXME: これは何？
--説明


**引数 [#g47b07eb]
-struct platform_device *pdev
--
--[[linux-4.4.1/platform_device]]


**返り値 [#g27d1a95]
-int
--


**参考 [#w306863c]


*実装 [#w347217d]
 /**
  * platform_device_add - add a platform device to device hierarchy
  * @pdev: platform device we're adding
  *
  * This is part 2 of platform_device_register(), though may be called
  * separately _iff_ pdev was allocated by platform_device_alloc().
  */
 int platform_device_add(struct platform_device *pdev)
 {
         int i, ret;
 
         if (!pdev)
                 return -EINVAL;
 
         if (!pdev->dev.parent)
                 pdev->dev.parent = &platform_bus;
 
-
--[[linux-4.4.1/platform_bus(global)]]

         pdev->dev.bus = &platform_bus_type;
 
-
--[[linux-4.4.1/platform_bus_type(global)]]

         switch (pdev->id) {
         default:
                 dev_set_name(&pdev->dev, "%s.%d", pdev->name,  pdev->id);
                 break;
-
--[[linux-4.4.1/dev_set_name()]]

         case PLATFORM_DEVID_NONE:
                 dev_set_name(&pdev->dev, "%s", pdev->name);
                 break;
         case PLATFORM_DEVID_AUTO:
                 /*
                  * Automatically allocated device ID. We mark it as such so
                  * that we remember it must be freed, and we append a suffix
                  * to avoid namespace collision with explicit IDs.
                  */
                 ret = ida_simple_get(&platform_devid_ida, 0, 0, GFP_KERNEL);
                 if (ret < 0)
                         goto err_out;
                 pdev->id = ret;
                 pdev->id_auto = true;
                 dev_set_name(&pdev->dev, "%s.%d.auto", pdev->name, pdev->id);
                 break;

-
--[[linux-4.4.1/platform_devid_ida(global)]]
--[[linux-4.4.1/ida_simple_get()]]

         }
 
         for (i = 0; i < pdev->num_resources; i++) {
                 struct resource *p, *r = &pdev->resource[i];
 
-
--[[linux-4.4.1/resource]]

                 if (r->name == NULL)
                         r->name = dev_name(&pdev->dev);
 
-
--[[linux-4.4.1/dev_name()]]

                 p = r->parent;
                 if (!p) {
                         if (resource_type(r) == IORESOURCE_MEM)
                                 p = &iomem_resource;
                         else if (resource_type(r) == IORESOURCE_IO)
                                 p = &ioport_resource;
-
--[[linux-4.4.1/resource_type()]]
--[[linux-4.4.1/iomem_resource(global)]]
--[[linux-4.4.1/ioport_resource(global)]]

                 }
 
                 if (p && insert_resource(p, r)) {
                         dev_err(&pdev->dev, "failed to claim resource %d\n", i);
                         ret = -EBUSY;
                         goto failed;
                 }
-
--[[linux-4.4.1/insert_resource()]]
--[[linux-4.4.1/dev_err()]]

         }
 
         pr_debug("Registering platform device '%s'. Parent at %s\n",
                  dev_name(&pdev->dev), dev_name(pdev->dev.parent));
 
-
--[[linux-4.4.1/pr_debug()]]

         ret = device_add(&pdev->dev);
         if (ret == 0)
                 return ret;
 
-
--[[linux-4.4.1/device_add()]]

  failed:
         if (pdev->id_auto) {
                 ida_simple_remove(&platform_devid_ida, pdev->id);
                 pdev->id = PLATFORM_DEVID_AUTO;
         }
 
-
--[[linux-4.4.1/ida_simple_remove()]]

         while (--i >= 0) {
                 struct resource *r = &pdev->resource[i];
                 if (r->parent)
                         release_resource(r);
         }
 
-
--[[linux-4.4.1/resource]]
--[[linux-4.4.1/release_resource()]]

  err_out:
         return ret;
 }
 EXPORT_SYMBOL_GPL(platform_device_add);
-
--[[linux-4.4.1/EXPORT_SYMBOL_GPL()]]


*コメント [#u852a839]