linux-kernel - [PATCH v4 2/4] mfd: madera-i2c: Simplify obtaining I2C match data

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Date:   Sat, 23 Sep 2023 18:49:26 +0100
From:   Biju Das <biju.das.jz@...renesas.com>
To:     Lee Jones <lee@...nel.org>
Cc:     Biju Das <biju.das.jz@...renesas.com>,
        Charles Keepax <ckeepax@...nsource.cirrus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>,
        alsa-devel@...a-project.org, patches@...nsource.cirrus.com,
        linux-kernel@...r.kernel.org, Biju Das <biju.das.au@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v4 2/4] mfd: madera-i2c: Simplify obtaining I2C match data

Simplify probe() by replacing of_device_get_match_data() and ID lookup for
retrieving match data by i2c_get_match_data().

Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
Acked-by: Charles Keepax <ckeepax@...nsource.cirrus.com>
---
Note:
 This patch is only compile tested.

v3->v4:
 * Updated commit header.
v2->v3:
 * Used uintptr_t for enum casting.
v1->v2:
 * Added Ack tag from Charles Keepax.
 * Dropped blank line before switch statement.
---
 drivers/mfd/madera-i2c.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/mfd/madera-i2c.c b/drivers/mfd/madera-i2c.c
index a404ea26bc79..0986e4a99f4a 100644
--- a/drivers/mfd/madera-i2c.c
+++ b/drivers/mfd/madera-i2c.c
@@ -18,21 +18,14 @@
 
 static int madera_i2c_probe(struct i2c_client *i2c)
 {
-	const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
 	struct madera *madera;
 	const struct regmap_config *regmap_16bit_config = NULL;
 	const struct regmap_config *regmap_32bit_config = NULL;
-	const void *of_data;
 	unsigned long type;
 	const char *name;
 	int ret;
 
-	of_data = of_device_get_match_data(&i2c->dev);
-	if (of_data)
-		type = (unsigned long)of_data;
-	else
-		type = id->driver_data;
-
+	type = (uintptr_t)i2c_get_match_data(i2c);
 	switch (type) {
 	case CS47L15:
 		if (IS_ENABLED(CONFIG_MFD_CS47L15)) {
-- 
2.25.1