mfd: Use mfd cell platform_data for timberdale cells platform bits

With the addition of a device platform mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index c69c6f2..4d2c75d 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -18,7 +18,6 @@
 #include <linux/interrupt.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/core.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
 #include <linux/spi/xilinx_spi.h>
@@ -471,7 +470,7 @@
 	struct spi_master *master;
 	u8 i;
 
-	pdata = mfd_get_data(dev);
+	pdata = dev->dev.platform_data;
 	if (pdata) {
 		num_cs = pdata->num_chipselect;
 		little_endian = pdata->little_endian;