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-rw-r--r--drivers/base/platform.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 6040717b62b..0cad9c7f6bb 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -32,6 +32,25 @@ struct device platform_bus = {
EXPORT_SYMBOL_GPL(platform_bus);
/**
+ * arch_setup_pdev_archdata - Allow manipulation of archdata before its used
+ * @dev: platform device
+ *
+ * This is called before platform_device_add() such that any pdev_archdata may
+ * be setup before the platform_notifier is called. So if a user needs to
+ * manipulate any relevant information in the pdev_archdata they can do:
+ *
+ * platform_devic_alloc()
+ * ... manipulate ...
+ * platform_device_add()
+ *
+ * And if they don't care they can just call platform_device_register() and
+ * everything will just work out.
+ */
+void __weak arch_setup_pdev_archdata(struct platform_device *pdev)
+{
+}
+
+/**
* platform_get_resource - get a resource for a device
* @dev: platform device
* @type: resource type
@@ -173,6 +192,7 @@ struct platform_device *platform_device_alloc(const char *name, int id)
pa->pdev.id = id;
device_initialize(&pa->pdev.dev);
pa->pdev.dev.release = platform_device_release;
+ arch_setup_pdev_archdata(&pa->pdev);
}
return pa ? &pa->pdev : NULL;
@@ -334,6 +354,7 @@ EXPORT_SYMBOL_GPL(platform_device_del);
int platform_device_register(struct platform_device *pdev)
{
device_initialize(&pdev->dev);
+ arch_setup_pdev_archdata(pdev);
return platform_device_add(pdev);
}
EXPORT_SYMBOL_GPL(platform_device_register);