[PATCH v4 1/4] mfd: arizona-i2c: Simplify obtaining I2C match data

[Biju Das]

Simplify probe() by replacing device_get_match_data() and ID lookup for
retrieving match data by i2c_get_match_data(). After this drop
intializing the variable type.

Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Acked-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
Tested-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
---
Note:
 This patch is only compile tested.

v3->v4:
 * Updated commit header and description.
v2->v3:
 * Used uintptr_t for enum casting.
v1->v2:
 * Added Ack and Tested-by tag from Charles Keepax
 * Dropped unnecessary blank line before switch statement.
---
 drivers/mfd/arizona-i2c.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c
index 9b7183ffc928..10e76fc8f12e 100644
--- a/drivers/mfd/arizona-i2c.c
+++ b/drivers/mfd/arizona-i2c.c
@@ -22,19 +22,12 @@
 
 static int arizona_i2c_probe(struct i2c_client *i2c)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
-	const void *match_data;
 	struct arizona *arizona;
 	const struct regmap_config *regmap_config = NULL;
-	unsigned long type = 0;
+	unsigned long type;
 	int ret;
 
-	match_data = device_get_match_data(&i2c->dev);
-	if (match_data)
-		type = (unsigned long)match_data;
-	else if (id)
-		type = id->driver_data;
-
+	type = (uintptr_t)i2c_get_match_data(i2c);
 	switch (type) {
 	case WM5102:
 		if (IS_ENABLED(CONFIG_MFD_WM5102))
-- 
2.25.1