3 files changed, 11 insertions, 2 deletions

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index ec993aa6a2ca..c5ac81d22303 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -217,6 +217,7 @@ int platform_device_add_data(struct platform_device *pdev, const void *data,
         if (d) {
                 memcpy(d, data, size);
                 pdev->dev.platform_data = d;
+                pdev->platform_data = d;
         }
         return d ? 0 : -ENOMEM;
 }
@@ -246,6 +247,8 @@ int platform_device_add(struct platform_device *pdev)
         else
                 dev_set_name(&pdev->dev, pdev->name);
 
+        pdev->platform_data = pdev->dev.platform_data;
+
         for (i = 0; i < pdev->num_resources; i++) {
                 struct resource *p, *r = &pdev->resource[i];
 
diff --git a/include/linux/device.h b/include/linux/device.h
index 5a64775e68e4..4bea53fe8f4c 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -385,8 +385,13 @@ struct device {
         struct device_driver *driver;   /* which driver has allocated this
                                            device */
         void            *driver_data;   /* data private to the driver */
-        void            *platform_data; /* Platform specific data, device
-                                           core doesn't touch it */
+
+        void            *platform_data; /* We will remove platform_data
+                                           field if all platform devices
+                                           pass its platform specific data
+                                           from platform_device->platform_data,
+                                           other kind of devices should not
+                                           use platform_data. */
         struct dev_pm_info      power;
 
 #ifdef CONFIG_NUMA
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 76aef7be32ab..76e470a299bf 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -20,6 +20,7 @@ struct platform_device {
         struct device   dev;
         u32             num_resources;
         struct resource * resource;
+        void            *platform_data;
 
         struct platform_device_id       *id_entry;
 };