3 files changed, 36 insertions, 34 deletions

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 0454be4266c1..9c9c126ed334 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -15,24 +15,24 @@
 #include <linux/platform_device.h>
 #include <linux/mfd/core.h>
 
-static int mfd_add_device(struct platform_device *parent,
-                const struct mfd_cell *cell,
-                struct resource *mem_base,
-                int irq_base)
+static int mfd_add_device(struct device *parent, int id,
+                          const struct mfd_cell *cell,
+                          struct resource *mem_base,
+                          int irq_base)
 {
         struct resource res[cell->num_resources];
         struct platform_device *pdev;
         int ret = -ENOMEM;
         int r;
 
-        pdev = platform_device_alloc(cell->name, parent->id);
+        pdev = platform_device_alloc(cell->name, id);
         if (!pdev)
                 goto fail_alloc;
 
-        pdev->dev.parent = &parent->dev;
+        pdev->dev.parent = parent;
 
         ret = platform_device_add_data(pdev,
-                        cell, sizeof(struct mfd_cell));
+                        cell->platform_data, cell->data_size);
         if (ret)
                 goto fail_device;
 
@@ -75,17 +75,16 @@ fail_alloc:
         return ret;
 }
 
-int mfd_add_devices(
-                struct platform_device *parent,
-                const struct mfd_cell *cells, int n_devs,
-                struct resource *mem_base,
-                int irq_base)
+int mfd_add_devices(struct device *parent, int id,
+                    const struct mfd_cell *cells, int n_devs,
+                    struct resource *mem_base,
+                    int irq_base)
 {
         int i;
         int ret = 0;
 
         for (i = 0; i < n_devs; i++) {
-                ret = mfd_add_device(parent, cells + i, mem_base, irq_base);
+                ret = mfd_add_device(parent, id, cells + i, mem_base, irq_base);
                 if (ret)
                         break;
         }
@@ -99,14 +98,13 @@ EXPORT_SYMBOL(mfd_add_devices);
 
 static int mfd_remove_devices_fn(struct device *dev, void *unused)
 {
-        platform_device_unregister(
-                        container_of(dev, struct platform_device, dev));
+        platform_device_unregister(to_platform_device(dev));
         return 0;
 }
 
-void mfd_remove_devices(struct platform_device *parent)
+void mfd_remove_devices(struct device *parent)
 {
-        device_for_each_child(&parent->dev, NULL, mfd_remove_devices_fn);
+        device_for_each_child(parent, NULL, mfd_remove_devices_fn);
 }
 EXPORT_SYMBOL(mfd_remove_devices);
 
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 94e55e8e7ce6..f4fd797c1590 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -466,8 +466,12 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
                 tc6393xb_attach_irq(dev);
 
         tc6393xb_cells[TC6393XB_CELL_NAND].driver_data = tcpd->nand_data;
+        tc6393xb_cells[TC6393XB_CELL_NAND].platform_data =
+                &tc6393xb_cells[TC6393XB_CELL_NAND];
+        tc6393xb_cells[TC6393XB_CELL_NAND].data_size =
+                sizeof(tc6393xb_cells[TC6393XB_CELL_NAND]);
 
-        retval = mfd_add_devices(dev,
+        retval = mfd_add_devices(&dev->dev, dev->id,
                         tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells),
                         iomem, tcpd->irq_base);
 
@@ -501,7 +505,7 @@ static int __devexit tc6393xb_remove(struct platform_device *dev)
         struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
         int ret;
 
-        mfd_remove_devices(dev);
+        mfd_remove_devices(&dev->dev);
 
         if (tc6393xb->irq)
                 tc6393xb_detach_irq(dev);
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index bb3dd0545928..49ef857cdb2d 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -1,5 +1,3 @@
-#ifndef MFD_CORE_H
-#define MFD_CORE_H
 /*
  * drivers/mfd/mfd-core.h
  *
@@ -13,6 +11,9 @@
  *
  */
 
+#ifndef MFD_CORE_H
+#define MFD_CORE_H
+
 #include <linux/platform_device.h>
 
 /*
@@ -28,7 +29,13 @@ struct mfd_cell {
         int                     (*suspend)(struct platform_device *dev);
         int                     (*resume)(struct platform_device *dev);
 
-        void                    *driver_data; /* driver-specific data */
+        /* driver-specific data for MFD-aware "cell" drivers */
+        void                    *driver_data;
+
+        /* platform_data can be used to either pass data to "generic"
+           driver or as a hook to mfd_cell for the "cell" drivers */
+        void                    *platform_data;
+        size_t                  data_size;
 
         /*
          * This resources can be specified relatievly to the parent device.
@@ -38,18 +45,11 @@ struct mfd_cell {
         const struct resource   *resources;
 };
 
-static inline struct mfd_cell *
-mfd_get_cell(struct platform_device *pdev)
-{
-        return (struct mfd_cell *)pdev->dev.platform_data;
-}
-
-extern int mfd_add_devices(
-                struct platform_device *parent,
-                const struct mfd_cell *cells, int n_devs,
-                struct resource *mem_base,
-                int irq_base);
+extern int mfd_add_devices(struct device *parent, int id,
+                           const struct mfd_cell *cells, int n_devs,
+                           struct resource *mem_base,
+                           int irq_base);
 
-extern void mfd_remove_devices(struct platform_device *parent);
+extern void mfd_remove_devices(struct device *parent);
 
 #endif