mux: adgs1408: simplify with spi_get_device_match_data()

Use spi_get_device_match_data() helper to simplify a bit the driver.

Link: https://lore.kernel.org/r/20240606142443.130517-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Author: krzk

drivers/mux/adgs1408.c

@@ -59,9 +59,7 @@ static int adgs1408_probe(struct spi_device *spi)
 	s32 idle_state;
 	int ret;
 
-	chip_id = (enum adgs1408_chip_id)device_get_match_data(dev);
-	if (!chip_id)
-		chip_id = spi_get_device_id(spi)->driver_data;
+	chip_id = (enum adgs1408_chip_id)spi_get_device_match_data(spi);
 
 	mux_chip = devm_mux_chip_alloc(dev, 1, 0);
 	if (IS_ERR(mux_chip))