X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;ds=sidebyside;f=kernel%2Fdrivers%2Fpinctrl%2Fberlin%2Fberlin.c;h=46f2b4818da3ae3a1c736b172916ab000252d3a2;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=7f0b0f93242b7240198283896cce5276f29006f7;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git

diff --git a/kernel/drivers/pinctrl/berlin/berlin.c b/kernel/drivers/pinctrl/berlin/berlin.c
index 7f0b0f932..46f2b4818 100644
--- a/kernel/drivers/pinctrl/berlin/berlin.c
+++ b/kernel/drivers/pinctrl/berlin/berlin.c
@@ -3,7 +3,7 @@
  *
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
- * Antoine Ténart <antoine.tenart@free-electrons.com>
+ * Antoine Ténart <antoine.tenart@free-electrons.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -11,6 +11,7 @@
  */
 
 #include <linux/io.h>
+#include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
@@ -291,18 +292,14 @@ static struct pinctrl_desc berlin_pctrl_desc = {
 	.owner		= THIS_MODULE,
 };
 
-int berlin_pinctrl_probe(struct platform_device *pdev,
-			 const struct berlin_pinctrl_desc *desc)
+int berlin_pinctrl_probe_regmap(struct platform_device *pdev,
+				const struct berlin_pinctrl_desc *desc,
+				struct regmap *regmap)
 {
 	struct device *dev = &pdev->dev;
 	struct berlin_pinctrl *pctrl;
-	struct regmap *regmap;
 	int ret;
 
-	regmap = dev_get_regmap(&pdev->dev, NULL);
-	if (!regmap)
-		return -ENODEV;
-
 	pctrl = devm_kzalloc(dev, sizeof(*pctrl), GFP_KERNEL);
 	if (!pctrl)
 		return -ENOMEM;
@@ -320,10 +317,24 @@ int berlin_pinctrl_probe(struct platform_device *pdev,
 	}
 
 	pctrl->pctrl_dev = pinctrl_register(&berlin_pctrl_desc, dev, pctrl);
-	if (!pctrl->pctrl_dev) {
+	if (IS_ERR(pctrl->pctrl_dev)) {
 		dev_err(dev, "failed to register pinctrl driver\n");
-		return -EINVAL;
+		return PTR_ERR(pctrl->pctrl_dev);
 	}
 
 	return 0;
 }
+
+int berlin_pinctrl_probe(struct platform_device *pdev,
+			 const struct berlin_pinctrl_desc *desc)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *parent_np = of_get_parent(dev->of_node);
+	struct regmap *regmap = syscon_node_to_regmap(parent_np);
+
+	of_node_put(parent_np);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	return berlin_pinctrl_probe_regmap(pdev, desc, regmap);
+}