pinctrl: imx7d: simplify imx7d_pinctrl_probe

Using of_device_get_match_data in imx7d_pinctrl_probe simplifies
the function. Also get rid of the void pointer cast since
imx_pinctrl_probe now accepts const struct imx_pinctrl_soc_info.

Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: NStefan Agner <stefan@agner.ch>
Acked-by: NDong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/freescale/pinctrl-imx7d.c

@@ -378,16 +378,12 @@ static const struct of_device_id imx7d_pinctrl_of_match[] = {
 
 static int imx7d_pinctrl_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *match;
-	struct imx_pinctrl_soc_info *pinctrl_info;
+	const struct imx_pinctrl_soc_info *pinctrl_info;
 
-	match = of_match_device(imx7d_pinctrl_of_match, &pdev->dev);
-
-	if (!match)
+	pinctrl_info = of_device_get_match_data(&pdev->dev);
+	if (!pinctrl_info)
 		return -ENODEV;
 
-	pinctrl_info = (struct imx_pinctrl_soc_info *) match->data;
-
 	return imx_pinctrl_probe(pdev, pinctrl_info);
 }