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net: dsa: microchip: look for phy-mode in port nodes

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Documentation/devicetree/bindings/net/dsa/dsa.txt says that the phy-mode
property should be specified on port nodes. However, the microchip
drivers read it from the switch node.

Let the driver use the per-port property and fall back to the old
location with a warning.

Fix in-tree users.

Signed-off-by: Helmut Grohne <helmut.grohne@intenta.de>
Link: https://lore.kernel.org/netdev/20200617082235.GA1523@laureti-dev/
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Helmut Grohne
2020-09-08 10:01:38 +02:00
committed by David S. Miller
parent f612eb76f3
commit edecfa98f6
5 changed files with 47 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/dsa/microchip/ksz_common.c
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@ -388,6 +388,8 @@ int ksz_switch_register(struct ksz_device *dev,
const struct ksz_dev_ops *ops)
{
phy_interface_t interface;
struct device_node *port;
unsigned int port_num;
int ret;
if (dev->pdata)
@ -421,10 +423,19 @@ int ksz_switch_register(struct ksz_device *dev,
/* Host port interface will be self detected, or specifically set in
* device tree.
*/
for (port_num = 0; port_num < dev->port_cnt; ++port_num)
dev->ports[port_num].interface = PHY_INTERFACE_MODE_NA;
if (dev->dev->of_node) {
ret = of_get_phy_mode(dev->dev->of_node, &interface);
if (ret == 0)
dev->interface = interface;
dev->compat_interface = interface;
for_each_available_child_of_node(dev->dev->of_node, port) {
if (of_property_read_u32(port, "reg", &port_num))
continue;
if (port_num >= dev->port_cnt)
return -EINVAL;
of_get_phy_mode(port, &dev->ports[port_num].interface);
}
dev->synclko_125 = of_property_read_bool(dev->dev->of_node,
"microchip,synclko-125");
}