mfd: Use mfd cell platform_data for rdc321x cells platform bits

With the addition of a platform device 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.

Cc: Grant Likely <[e-mail]>
Cc: Wim Van Sebroeck <[e-mail]>
Cc: Florian Fainelli <[e-mail]>
Signed-off-by: Samuel Ortiz <[e-mail]>

drivers/gpio/rdc321x-gpio.c

···
 #include <linux/pci.h>
 #include <linux/gpio.h>
 #include <linux/mfd/rdc321x.h>
-#include <linux/mfd/core.h>
 #include <linux/slab.h>
 
 struct rdc321x_gpio {
···
 	struct rdc321x_gpio *rdc321x_gpio_dev;
 	struct rdc321x_gpio_pdata *pdata;
 
-	pdata = mfd_get_data(pdev);
+	pdata = pdev->dev.platform_data;
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform data supplied\n");
 		return -ENODEV;

drivers/mfd/rdc321x-southbridge.c

···
 		.name		= "rdc321x-wdt",
 		.resources	= rdc321x_wdt_resource,
 		.num_resources	= ARRAY_SIZE(rdc321x_wdt_resource),
-		.mfd_data	= &rdc321x_wdt_pdata,
+		.platform_data	= &rdc321x_wdt_pdata,
+		.pdata_size	= sizeof(rdc321x_wdt_pdata),
 	}, {
 		.name		= "rdc321x-gpio",
 		.resources	= rdc321x_gpio_resources,
 		.num_resources	= ARRAY_SIZE(rdc321x_gpio_resources),
-		.mfd_data	= &rdc321x_gpio_pdata,
+		.platform_data	= &rdc321x_gpio_pdata,
+		.pdata_size	= sizeof(rdc321x_gpio_pdata),
 	},
 };
 

drivers/watchdog/rdc321x_wdt.c

···
 #include <linux/io.h>
 #include <linux/uaccess.h>
 #include <linux/mfd/rdc321x.h>
-#include <linux/mfd/core.h>
 
 #define RDC_WDT_MASK	0x80000000 /* Mask */
 #define RDC_WDT_EN	0x00800000 /* Enable bit */
···
 	struct resource *r;
 	struct rdc321x_wdt_pdata *pdata;
 
-	pdata = mfd_get_data(pdev);
+	pdata = pdev->dev.platform_data;
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform data supplied\n");
 		return -ENODEV;