mfd: madera: Simplify with spi_get_device_match_data()

Use spi_get_device_match_data() helper to simplify a bit the driver.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240606142457.130553-2-krzysztof.kozlowski@linaro.orgSigned-off-by: Lee Jones <lee@kernel.org>

drivers/mfd/madera-spi.c

@@ -18,21 +18,14 @@
 
 static int madera_spi_probe(struct spi_device *spi)
 {
-	const struct spi_device_id *id = spi_get_device_id(spi);
 	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(&spi->dev);
-	if (of_data)
-		type = (unsigned long)of_data;
-	else
-		type = id->driver_data;
-
+	type = (unsigned long)spi_get_device_match_data(spi);
 	switch (type) {
 	case CS47L15:
 		if (IS_ENABLED(CONFIG_MFD_CS47L15)) {