[PATCH 2/2 Trusty SRU] of: make of_get_phy_mode parse 'phy-connection-type'

[tim.gardner at canonical.com]

From: Florian Fainelli <f.fainelli at gmail.com>

BugLink: http://bugs.launchpad.net/bugs/1381084

Per the ePAPR v1.1 specification, 'phy-connection-type' is the canonical
property name for describing an Ethernet to PHY connection type. Make
sure that of_get_phy_mode() also attempts to parse that property and
update the comments mentioning 'phy-mode' to also include
'phy-connection-type'.

Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
Signed-off-by: Grant Likely <grant.likely at linaro.org>
(cherry picked from commit cf4c9eb5a451ba26246477dd3168e98b7a5c1b1c)
Signed-off-by: Dann Frazier <dann.frazier at canonical.com>
Signed-off-by: Tim Gardner <tim.gardner at canonical.com>
---
 drivers/of/of_net.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c
index a208a45..a3df342 100644
--- a/drivers/of/of_net.c
+++ b/drivers/of/of_net.c
@@ -13,8 +13,8 @@
 
 /**
  * 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.
+ * into the device tree binding of 'phy-mode' or 'phy-connection-type',
+ * so that Ethernet device driver can get phy interface from device tree.
  */
 static const char *phy_modes[] = {
 	[PHY_INTERFACE_MODE_NA]		= "",
@@ -37,8 +37,9 @@ static const char *phy_modes[] = {
  * 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.
+ * The function gets phy interface string from property 'phy-mode' or
+ * 'phy-connection-type', and return its index in phy_modes table, or errno in
+ * error case.
  */
 int of_get_phy_mode(struct device_node *np)
 {
@@ -47,6 +48,8 @@ int of_get_phy_mode(struct device_node *np)
 
 	err = of_property_read_string(np, "phy-mode", &pm);
 	if (err < 0)
+		err = of_property_read_string(np, "phy-connection-type", &pm);
+	if (err < 0)
 		return err;
 
 	for (i = 0; i < ARRAY_SIZE(phy_modes); i++)
-- 
1.9.1