fb: Use platform_data to retrieve tmiofb platform bits

With the addition of the platform device mfd_cell pointer, we can now
cleanly pass the sub device drivers platform data pointers through the
regular device platform_data one, and get rid of mfd_get_data().

Cc: Ian Molton <spyro@f2s.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 8e9b1b7..b3d5852 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -694,7 +694,8 @@
 	}
 
 	tc6393xb_cells[TC6393XB_CELL_NAND].mfd_data = tcpd->nand_data;
-	tc6393xb_cells[TC6393XB_CELL_FB].mfd_data = tcpd->fb_data;
+	tc6393xb_cells[TC6393XB_CELL_FB].platform_data = tcpd->fb_data;
+	tc6393xb_cells[TC6393XB_CELL_FB].pdata_size = sizeof(*tcpd->fb_data);
 
 	ret = mfd_add_devices(&dev->dev, dev->id,
 			tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells),