[PATCH 20/42] mfd: max8997: 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 at kernel.org>
---
 drivers/mfd/max8997.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
index 68d8f2b95287..0c5b8baead62 100644
--- a/drivers/mfd/max8997.c
+++ b/drivers/mfd/max8997.c
@@ -212,7 +212,7 @@ static int max8997_i2c_probe(struct i2c_client *i2c,
 
 	max8997_irq_init(max8997);
 
-	ret = mfd_add_devices(max8997->dev, -1, max8997_devs,
+	ret = mfd_add_devices(max8997->dev, PLATFORM_DEVID_NONE, max8997_devs,
 			ARRAY_SIZE(max8997_devs),
 			NULL, 0, NULL);
 	if (ret < 0) {
-- 
2.17.1