Merge branch 'master' into for-next

Fast-forward merge with Linus to be able to merge patches
based on more recent version of the tree.

4 files changed, 53 insertions, 6 deletions

diff --git a/drivers/of/address.c b/drivers/of/address.c
index da1f4b9605df..72c33fbe451d 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -610,6 +610,6 @@ void __iomem *of_iomap(struct device_node *np, int index)
 	if (of_address_to_resource(np, index, &res))
 		return NULL;
 
-	return ioremap(res.start, 1 + res.end - res.start);
+	return ioremap(res.start, resource_size(&res));
 }
 EXPORT_SYMBOL(of_iomap);
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 02ed36719def..3ff22e32b602 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -610,8 +610,9 @@ EXPORT_SYMBOL(of_find_node_by_phandle);
  *
  * The out_value is modified only if a valid u32 value can be decoded.
  */
-int of_property_read_u32_array(const struct device_node *np, char *propname,
-			       u32 *out_values, size_t sz)
+int of_property_read_u32_array(const struct device_node *np,
+			       const char *propname, u32 *out_values,
+			       size_t sz)
 {
 	struct property *prop = of_find_property(np, propname, NULL);
 	const __be32 *val;
@@ -645,7 +646,7 @@ EXPORT_SYMBOL_GPL(of_property_read_u32_array);
  *
  * The out_string pointer is modified only if a valid string can be decoded.
  */
-int of_property_read_string(struct device_node *np, char *propname,
+int of_property_read_string(struct device_node *np, const char *propname,
 				const char **out_string)
 {
 	struct property *prop = of_find_property(np, propname, NULL);
diff --git a/drivers/of/gpio.c b/drivers/of/gpio.c
index 3007662ac614..ef0105fa52b1 100644
--- a/drivers/of/gpio.c
+++ b/drivers/of/gpio.c
@@ -127,8 +127,8 @@ EXPORT_SYMBOL(of_gpio_count);
  * gpio chips. This function performs only one sanity check: whether gpio
  * is less than ngpios (that is specified in the gpio_chip).
  */
-static int of_gpio_simple_xlate(struct gpio_chip *gc, struct device_node *np,
-				const void *gpio_spec, u32 *flags)
+int of_gpio_simple_xlate(struct gpio_chip *gc, struct device_node *np,
+			 const void *gpio_spec, u32 *flags)
 {
 	const __be32 *gpio = gpio_spec;
 	const u32 n = be32_to_cpup(gpio);
@@ -152,6 +152,7 @@ static int of_gpio_simple_xlate(struct gpio_chip *gc, struct device_node *np,
 
 	return n;
 }
+EXPORT_SYMBOL(of_gpio_simple_xlate);
 
 /**
  * of_mm_gpiochip_add - Add memory mapped GPIO chip (bank)
diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c
index 86f334a2769c..bb184717588f 100644
--- a/drivers/of/of_net.c
+++ b/drivers/of/of_net.c
@@ -8,6 +8,51 @@
 #include <linux/etherdevice.h>
 #include <linux/kernel.h>
 #include <linux/of_net.h>
+#include <linux/phy.h>
+
+/**
+ * It maps 'enum phy_interface_t' found in include/linux/phy.h
+ * into the device tree binding of 'phy-mode', so that Ethernet
+ * device driver can get phy interface from device tree.
+ */
+static const char *phy_modes[] = {
+	[PHY_INTERFACE_MODE_NA]		= "",
+	[PHY_INTERFACE_MODE_MII]	= "mii",
+	[PHY_INTERFACE_MODE_GMII]	= "gmii",
+	[PHY_INTERFACE_MODE_SGMII]	= "sgmii",
+	[PHY_INTERFACE_MODE_TBI]	= "tbi",
+	[PHY_INTERFACE_MODE_RMII]	= "rmii",
+	[PHY_INTERFACE_MODE_RGMII]	= "rgmii",
+	[PHY_INTERFACE_MODE_RGMII_ID]	= "rgmii-id",
+	[PHY_INTERFACE_MODE_RGMII_RXID]	= "rgmii-rxid",
+	[PHY_INTERFACE_MODE_RGMII_TXID] = "rgmii-txid",
+	[PHY_INTERFACE_MODE_RTBI]	= "rtbi",
+	[PHY_INTERFACE_MODE_SMII]	= "smii",
+};
+
+/**
+ * of_get_phy_mode - Get phy mode for given device_node
+ * @np:	Pointer to the given device_node
+ *
+ * The function gets phy interface string from property 'phy-mode',
+ * and return its index in phy_modes table, or errno in error case.
+ */
+const int of_get_phy_mode(struct device_node *np)
+{
+	const char *pm;
+	int err, i;
+
+	err = of_property_read_string(np, "phy-mode", &pm);
+	if (err < 0)
+		return err;
+
+	for (i = 0; i < ARRAY_SIZE(phy_modes); i++)
+		if (!strcasecmp(pm, phy_modes[i]))
+			return i;
+
+	return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(of_get_phy_mode);
 
 /**
  * Search the device tree for the best MAC address to use.  'mac-address' is