[PATCH v4 10/10] net/macb: add pinctrl consumer support

[Nicolas Ferre]

From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>

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

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
[nicolas.ferre at atmel.com: adapt the error path, remove unneeded headers]
Signed-off-by: Nicolas Ferre <nicolas.ferre at atmel.com>
Tested-by: Joachim Eastwood <manabian at gmail.com>
---
 drivers/net/ethernet/cadence/macb.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index c1f20b0..c374875 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -26,6 +26,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_net.h>
+#include <linux/pinctrl/consumer.h>
 
 #include "macb.h"
 
@@ -1472,6 +1473,7 @@ 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) {
@@ -1479,6 +1481,15 @@ 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)
+			goto err_out;
+
+		dev_warn(&pdev->dev, "No pinctrl provided\n");
+	}
+
 	err = -ENOMEM;
 	dev = alloc_etherdev(sizeof(*bp));
 	if (!dev)
-- 
1.8.0