mfd: wm8994: Fix Wvoid-pointer-to-enum-cast warning

'type' is an enum, thus cast of pointer on 64-bit compile test with W=1
causes:

  wm8994-core.c:631:19: error: cast to smaller integer type 'enum wm8994_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Charles Keepax <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: krzk

drivers/mfd/wm8994-core.c

@@ -628,7 +628,7 @@ static int wm8994_i2c_probe(struct i2c_client *i2c)
 	if (i2c->dev.of_node) {
 		of_id = of_match_device(wm8994_of_match, &i2c->dev);
 		if (of_id)
-			wm8994->type = (enum wm8994_type)of_id->data;
+			wm8994->type = (uintptr_t)of_id->data;
 	} else {
 		wm8994->type = id->driver_data;
 	}