[PATCH 41/42] mfd: wm8400: use PLATFORM_DEVID_NONE

[Krzysztof Kozlowski]

Use PLATFORM_DEVID_NONE define instead of "-1" value because:
 - it brings some meaning,
 - it might point attention why auto device ID was not used.

Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
 drivers/mfd/wm8400-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
index 0fe32a05421b..9efca6f3fbb2 100644
--- a/drivers/mfd/wm8400-core.c
+++ b/drivers/mfd/wm8400-core.c
@@ -38,7 +38,8 @@ static int wm8400_register_codec(struct wm8400 *wm8400)
 		.pdata_size = sizeof(*wm8400),
 	};
 
-	return devm_mfd_add_devices(wm8400->dev, -1, &cell, 1, NULL, 0, NULL);
+	return devm_mfd_add_devices(wm8400->dev, PLATFORM_DEVID_NONE, &cell, 1,
+				    NULL, 0, NULL);
 }
 
 /*
-- 
2.17.1