[PATCH 1/1] net: macb: add pinctrl consumer support

If no pinctrl available just report a warning as some architecture may not
need to do anything.

Cc: Nicolas Ferre <redacted>
Cc: netdev at vger.kernel.org
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <redacted>
---
 drivers/net/ethernet/cadence/macb.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 033064b..e5fdf8a 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c

@@ -26,6 +26,9 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_net.h>
+#include <linux/of_gpio.h>
+#include <linux/gpio.h>
+#include <linux/pinctrl/consumer.h>
 
 #include "macb.h"
 

@@ -1306,6 +1309,7 @@ static int __init macb_probe(struct platform_device *pdev)
 	struct phy_device *phydev;
 	u32 config;
 	int err = -ENXIO;
+	struct pinctrl *pinctrl;
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!regs) {

@@ -1313,6 +1317,15 @@ static int __init macb_probe(struct platform_device *pdev)
 		goto err_out;
 	}
 
+	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR(pinctrl)) {
+		err = PTR_ERR(pinctrl);
+		if (err == -EPROBE_DEFER)
+			return err;