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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

29
drivers/net/dsa/microchip/ksz9477.c
View File

@@ -1208,7 +1208,7 @@ static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
/* configure MAC to 1G & RGMII mode */
ksz_pread8(dev, port, REG_PORT_XMII_CTRL_1, &data8);
switch (dev->interface) {
switch (p->interface) {
case PHY_INTERFACE_MODE_MII:
ksz9477_set_xmii(dev, 0, &data8);
ksz9477_set_gbit(dev, false, &data8);
@@ -1229,11 +1229,11 @@ static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
ksz9477_set_gbit(dev, true, &data8);
data8 &= ~PORT_RGMII_ID_IG_ENABLE;
data8 &= ~PORT_RGMII_ID_EG_ENABLE;
if (dev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
dev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
p->interface == PHY_INTERFACE_MODE_RGMII_RXID)
data8 |= PORT_RGMII_ID_IG_ENABLE;
if (dev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
dev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
p->interface == PHY_INTERFACE_MODE_RGMII_TXID)
data8 |= PORT_RGMII_ID_EG_ENABLE;
p->phydev.speed = SPEED_1000;
break;
@@ -1269,23 +1269,32 @@ static void ksz9477_config_cpu_port(struct dsa_switch *ds)
dev->cpu_port = i;
dev->host_mask = (1 << dev->cpu_port);
dev->port_mask |= dev->host_mask;
p = &dev->ports[i];
/* Read from XMII register to determine host port
* interface. If set specifically in device tree
* note the difference to help debugging.
*/
interface = ksz9477_get_interface(dev, i);
if (!dev->interface)
dev->interface = interface;
if (interface && interface != dev->interface)
if (!p->interface) {
if (dev->compat_interface) {
dev_warn(dev->dev,
"Using legacy switch \"phy-mode\" property, because it is missing on port %d node. "
"Please update your device tree.\n",
i);
p->interface = dev->compat_interface;
} else {
p->interface = interface;
}
}
if (interface && interface != p->interface)
dev_info(dev->dev,
"use %s instead of %s\n",
phy_modes(dev->interface),
phy_modes(p->interface),
phy_modes(interface));
/* enable cpu port */
ksz9477_port_setup(dev, i, true);
p = &dev->ports[dev->cpu_port];
p->vid_member = dev->port_mask;
p->on = 1;
}