spi: mt65xx: Switch to device_get_match_data()

Instead of performing yet another match check in the probe function,
simply switch to device_get_match_data().
This is a cleanup and brings no functional change.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220407114428.167091-3-angelogioacchino.delregno@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-mt65xx.c

@@ -1084,7 +1084,6 @@ static int mtk_spi_probe(struct platform_device *pdev)
 {
 	struct spi_master *master;
 	struct mtk_spi *mdata;
-	const struct of_device_id *of_id;
 	int i, irq, ret, addr_bits;
 
 	master = devm_spi_alloc_master(&pdev->dev, sizeof(*mdata));
@@ -1105,14 +1104,8 @@ static int mtk_spi_probe(struct platform_device *pdev)
 	master->set_cs_timing = mtk_spi_set_hw_cs_timing;
 	master->use_gpio_descriptors = true;
 
-	of_id = of_match_node(mtk_spi_of_match, pdev->dev.of_node);
-	if (!of_id) {
-		dev_err(&pdev->dev, "failed to probe of_node\n");
-		return -EINVAL;
-	}
-
 	mdata = spi_master_get_devdata(master);
-	mdata->dev_comp = of_id->data;
+	mdata->dev_comp = device_get_match_data(&pdev->dev);
 
 	if (mdata->dev_comp->enhance_timing)
 		master->mode_bits |= SPI_CS_HIGH;