linux-kernel - [PATCH v3 2/3] pinctrl: mcp23s08

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Date:   Sun, 24 Sep 2023 18:23:19 +0100
From:   Biju Das <biju.das.jz@...renesas.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Biju Das <biju.das.jz@...renesas.com>, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, Biju Das <biju.das.au@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v3 2/3] pinctrl: mcp23s08_spi: Simplify probe()

Simpilfy probe() by replacing device_get_match_data() and ID lookup for
retrieving match data by spi_get_device_match_data().

While at it, replace data type of variable type from 'int'->'unsigned int'
and declare variables following a reverse christmas tree order.

Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
v2->v3:
 * Added Rb tag from Andy
 * Reordered the patch.
v2:
 * New patch.
---
 drivers/pinctrl/pinctrl-mcp23s08_spi.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-mcp23s08_spi.c b/drivers/pinctrl/pinctrl-mcp23s08_spi.c
index ea059b9c5542..caf528284d07 100644
--- a/drivers/pinctrl/pinctrl-mcp23s08_spi.c
+++ b/drivers/pinctrl/pinctrl-mcp23s08_spi.c
@@ -143,22 +143,17 @@ static int mcp23s08_spi_regmap_init(struct mcp23s08 *mcp, struct device *dev,
 
 static int mcp23s08_probe(struct spi_device *spi)
 {
-	struct device *dev = &spi->dev;
 	struct mcp23s08_driver_data *data;
+	struct device *dev = &spi->dev;
 	unsigned long spi_present_mask;
-	const void *match;
-	unsigned int addr;
 	unsigned int ngpio = 0;
+	unsigned int type;
+	unsigned int addr;
 	int chips;
-	int type;
 	int ret;
 	u32 v;
 
-	match = device_get_match_data(dev);
-	if (match)
-		type = (int)(uintptr_t)match;
-	else
-		type = spi_get_device_id(spi)->driver_data;
+	type = (uintptr_t)spi_get_device_match_data(spi);
 
 	ret = device_property_read_u32(dev, "microchip,spi-present-mask", &v);
 	if (ret) {
-- 
2.25.1