w1: Use device platform_data to retrieve ds1wm 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: Matt Reimer <mreimer@vpop.net>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c
index 2f4fa02744a5..0855d6cce3c1 100644
--- a/drivers/w1/masters/ds1wm.c
+++ b/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 = mfd_get_data(ds1wm_data->pdev);
+        struct ds1wm_driver_data *plat = ds1wm_data->pdev->dev.platform_data;
 
         if (ds1wm_data->cell->enable)
                 ds1wm_data->cell->enable(ds1wm_data->pdev);
@@ -351,13 +351,21 @@ static int ds1wm_probe(struct platform_device *pdev)
                 ret = -ENOMEM;
                 goto err0;
         }
-        plat = mfd_get_data(pdev);
 
         /* calculate bus shift from mem resource */
         ds1wm_data->bus_shift = resource_size(res) >> 3;
 
         ds1wm_data->pdev = pdev;
         ds1wm_data->cell = mfd_get_cell(pdev);
+        if (!ds1wm_data->cell) {
+                ret = -ENODEV;
+                goto err1;
+        }
+        plat = pdev->dev.platform_data;
+        if (!plat) {
+                ret = -ENODEV;
+                goto err1;
+        }
 
         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         if (!res) {