w1: Use mfd_data instead of driver_data for dsw1wm.c

Use mfd_data for passing information from mfd drivers to mfd
clients.  The mfd_cell's driver_data field is being phased out.

Clients that were using driver_data now access .mfd_data
via mfd_get_data().  This changes ds1wm only; mfd drivers with
other cells are not modified, with the exception of led_cell.

The led_cell.driver_data line is dropped from htc-pasic3.c in this
patch as well.  It's not used in mainline (there's no leds-pasic3
platform driver), so it should be safe to take care of that here.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/w1/masters/ds1wm.c

@@ -216,7 +216,7 @@ static int ds1wm_find_divisor(int gclk)
 static void ds1wm_up(struct ds1wm_data *ds1wm_data)
 {
 	int divisor;
-	struct ds1wm_driver_data *plat = ds1wm_data->cell->driver_data;
+	struct ds1wm_driver_data *plat = mfd_get_data(ds1wm_data->pdev);
 
 	if (ds1wm_data->cell->enable)
 		ds1wm_data->cell->enable(ds1wm_data->pdev);
@@ -356,7 +356,7 @@ static int ds1wm_probe(struct platform_device *pdev)
 		ret = -ENOMEM;
 		goto err0;
 	}
-	plat = cell->driver_data;
+	plat = mfd_get_data(pdev);
 
 	/* calculate bus shift from mem resource */
 	ds1wm_data->bus_shift = resource_size(res) >> 3;