Merge branch 'fixed_phy'

Florian Fainelli says:

====================
net: of_phy_connect_fixed_link removal

This patch set removes of_phy_connect_fixed_link() from the tree now that
we have a better solution for dealing with fixed PHY (emulated PHY) devices
for drivers that require them.

First two patches update the 'fixed-link' Device Tree binding and drivers to
refere to it.

Patches 3 to 7 update the in-tree network drivers that use
of_phy_connect_fixed_link()

Patch 8 removes of_phy_connect_fixed_link

Patch 9 removes the PowerPC code that parsed the 'fixed-link' property.

Patch 9 can be merged via the net-next tree if the PowerPC folks ack it,
but it really has to be merged after the first 8 patches in order to avoid
breakage.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/broadcom-bcmgenet.txt

@@ -24,7 +24,7 @@ Optional properties:
 - fixed-link: When the GENET interface is connected to a MoCA hardware block or
   when operating in a RGMII to RGMII type of connection, or when the MDIO bus is
   voluntarily disabled, this property should be used to describe the "fixed link".
-  See Documentation/devicetree/bindings/net/fsl-tsec-phy.txt for information on
+  See Documentation/devicetree/bindings/net/fixed-link.txt for information on
   the property specifics
 
 Required child nodes:

Documentation/devicetree/bindings/net/broadcom-systemport.txt

@@ -8,7 +8,7 @@ Required properties:
 - local-mac-address: Ethernet MAC address (48 bits) of this adapter
 - phy-mode: Should be a string describing the PHY interface to the
   Ethernet switch/PHY, see Documentation/devicetree/bindings/net/ethernet.txt
-- fixed-link: see Documentation/devicetree/bindings/net/fsl-tsec-phy.txt for
+- fixed-link: see Documentation/devicetree/bindings/net/fixed-link.txt for
   the property specific details
 
 Optional properties:

Documentation/devicetree/bindings/net/fixed-link.txt

@@ -18,6 +18,18 @@ properties:
 * 'asym-pause' (boolean, optional), to indicate that asym_pause should
   be enabled.
 
+Old, deprecated 'fixed-link' binding:
+
+* A 'fixed-link' property in the Ethernet MAC node, with 5 cells, of the
+  form <a b c d e> with the following accepted values:
+  - a: emulated PHY ID, choose any but but unique to the all specified
+    fixed-links, from 0 to 31
+  - b: duplex configuration: 0 for half duplex, 1 for full duplex
+  - c: link speed in Mbits/sec, accepted values are: 10, 100 and 1000
+  - d: pause configuration: 0 for no pause, 1 for pause
+  - e: asymmetric pause configuration: 0 for no asymmetric pause, 1 for
+    asymmetric pause
+
 Example:
 
 ethernet@0 {

Documentation/devicetree/bindings/net/fsl-tsec-phy.txt

@@ -42,10 +42,7 @@ Properties:
     interrupt.  For TSEC and eTSEC devices, the first interrupt is
     transmit, the second is receive, and the third is error.
   - phy-handle : See ethernet.txt file in the same directory.
-  - fixed-link : <a b c d e> where a is emulated phy id - choose any,
-    but unique to the all specified fixed-links, b is duplex - 0 half,
-    1 full, c is link speed - d#10/d#100/d#1000, d is pause - 0 no
-    pause, 1 pause, e is asym_pause - 0 no asym_pause, 1 asym_pause.
+  - fixed-link : See fixed-link.txt in the same directory.
   - phy-connection-type : See ethernet.txt file in the same directory.
     This property is only really needed if the connection is of type
     "rgmii-id", as all other connection types are detected by hardware.

arch/powerpc/sysdev/fsl_soc.c

@@ -25,7 +25,6 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/phy.h>
-#include <linux/phy_fixed.h>
 #include <linux/spi/spi.h>
 #include <linux/fsl_devices.h>
 #include <linux/fs_enet_pd.h>
@@ -178,37 +177,6 @@ u32 get_baudrate(void)
 EXPORT_SYMBOL(get_baudrate);
 #endif /* CONFIG_CPM2 */
 
-#ifdef CONFIG_FIXED_PHY
-static int __init of_add_fixed_phys(void)
-{
-	int ret;
-	struct device_node *np;
-	u32 *fixed_link;
-	struct fixed_phy_status status = {};
-
-	for_each_node_by_name(np, "ethernet") {
-		fixed_link  = (u32 *)of_get_property(np, "fixed-link", NULL);
-		if (!fixed_link)
-			continue;
-
-		status.link = 1;
-		status.duplex = fixed_link[1];
-		status.speed = fixed_link[2];
-		status.pause = fixed_link[3];
-		status.asym_pause = fixed_link[4];
-
-		ret = fixed_phy_add(PHY_POLL, fixed_link[0], &status);
-		if (ret) {
-			of_node_put(np);
-			return ret;
-		}
-	}
-
-	return 0;
-}
-arch_initcall(of_add_fixed_phys);
-#endif /* CONFIG_FIXED_PHY */
-
 #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
 static __be32 __iomem *rstcr;
 

drivers/net/ethernet/broadcom/bcmsysport.c

@@ -1327,8 +1327,8 @@ static int bcm_sysport_open(struct net_device *dev)
 	/* Read CRC forward */
 	priv->crc_fwd = !!(umac_readl(priv, UMAC_CMD) & CMD_CRC_FWD);
 
-	priv->phydev = of_phy_connect_fixed_link(dev, bcm_sysport_adj_link,
-							priv->phy_interface);
+	priv->phydev = of_phy_connect(dev, priv->phy_dn, bcm_sysport_adj_link,
+					0, priv->phy_interface);
 	if (!priv->phydev) {
 		netdev_err(dev, "could not attach to PHY\n");
 		return -ENODEV;
@@ -1551,6 +1551,19 @@ static int bcm_sysport_probe(struct platform_device *pdev)
 	if (priv->phy_interface < 0)
 		priv->phy_interface = PHY_INTERFACE_MODE_GMII;
 
+	/* In the case of a fixed PHY, the DT node associated
+	 * to the PHY is the Ethernet MAC DT node.
+	 */
+	if (of_phy_is_fixed_link(dn)) {
+		ret = of_phy_register_fixed_link(dn);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to register fixed PHY\n");
+			goto err;
+		}
+
+		priv->phy_dn = dn;
+	}
+
 	/* Initialize netdevice members */
 	macaddr = of_get_mac_address(dn);
 	if (!macaddr || !is_valid_ether_addr(macaddr)) {

drivers/net/ethernet/broadcom/bcmsysport.h

@@ -656,6 +656,7 @@ struct bcm_sysport_priv {
 	unsigned int		rx_c_index;
 
 	/* PHY device */
+	struct device_node	*phy_dn;
 	struct phy_device	*phydev;
 	phy_interface_t		phy_interface;
 	int			old_pause;

drivers/net/ethernet/broadcom/genet/bcmmii.c

@@ -298,6 +298,7 @@ int bcmgenet_mii_config(struct net_device *dev)
 static int bcmgenet_mii_probe(struct net_device *dev)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
+	struct device_node *dn = priv->pdev->dev.of_node;
 	struct phy_device *phydev;
 	unsigned int phy_flags;
 	int ret;
@@ -307,15 +308,19 @@ static int bcmgenet_mii_probe(struct net_device *dev)
 		return 0;
 	}
 
-	if (priv->phy_dn)
-		phydev = of_phy_connect(dev, priv->phy_dn,
-					bcmgenet_mii_setup, 0,
-					priv->phy_interface);
-	else
-		phydev = of_phy_connect_fixed_link(dev,
-					bcmgenet_mii_setup,
-					priv->phy_interface);
+	/* In the case of a fixed PHY, the DT node associated
+	 * to the PHY is the Ethernet MAC DT node.
+	 */
+	if (of_phy_is_fixed_link(dn)) {
+		ret = of_phy_register_fixed_link(dn);
+		if (ret)
+			return ret;
+
+		priv->phy_dn = dn;
+	}
 
+	phydev = of_phy_connect(dev, priv->phy_dn, bcmgenet_mii_setup, 0,
+				priv->phy_interface);
 	if (!phydev) {
 		pr_err("could not attach to PHY\n");
 		return -ENODEV;

drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c

@@ -791,10 +791,6 @@ static int fs_init_phy(struct net_device *dev)
 
 	phydev = of_phy_connect(dev, fep->fpi->phy_node, &fs_adjust_link, 0,
 				iface);
-	if (!phydev) {
-		phydev = of_phy_connect_fixed_link(dev, &fs_adjust_link,
-						   iface);
-	}
 	if (!phydev) {
 		dev_err(&dev->dev, "Could not attach to PHY\n");
 		return -ENODEV;
@@ -1029,9 +1025,16 @@ static int fs_enet_probe(struct platform_device *ofdev)
 	fpi->use_napi = 1;
 	fpi->napi_weight = 17;
 	fpi->phy_node = of_parse_phandle(ofdev->dev.of_node, "phy-handle", 0);
-	if ((!fpi->phy_node) && (!of_get_property(ofdev->dev.of_node, "fixed-link",
-						  NULL)))
-		goto out_free_fpi;
+	if (!fpi->phy_node && of_phy_is_fixed_link(ofdev->dev.of_node)) {
+		err = of_phy_register_fixed_link(ofdev->dev.of_node);
+		if (err)
+			goto out_free_fpi;
+
+		/* In the case of a fixed PHY, the DT node associated
+		 * to the PHY is the Ethernet MAC DT node.
+		 */
+		fpi->phy_node = ofdev->dev.of_node;
+	}
 
 	if (of_device_is_compatible(ofdev->dev.of_node, "fsl,mpc5125-fec")) {
 		phy_connection_type = of_get_property(ofdev->dev.of_node,

drivers/net/ethernet/freescale/gianfar.c

@@ -889,6 +889,17 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
 
 	priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
 
+	/* In the case of a fixed PHY, the DT node associated
+	 * to the PHY is the Ethernet MAC DT node.
+	 */
+	if (of_phy_is_fixed_link(np)) {
+		err = of_phy_register_fixed_link(np);
+		if (err)
+			goto err_grp_init;
+
+		priv->phy_node = np;
+	}
+
 	/* Find the TBI PHY.  If it's not there, we don't support SGMII */
 	priv->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
 
@@ -1660,9 +1671,6 @@ static int init_phy(struct net_device *dev)
 
 	priv->phydev = of_phy_connect(dev, priv->phy_node, &adjust_link, 0,
 				      interface);
-	if (!priv->phydev)
-		priv->phydev = of_phy_connect_fixed_link(dev, &adjust_link,
-							 interface);
 	if (!priv->phydev) {
 		dev_err(&dev->dev, "could not attach to PHY\n");
 		return -ENODEV;

drivers/net/ethernet/freescale/ucc_geth.c

@@ -1728,9 +1728,6 @@ static int init_phy(struct net_device *dev)
 
 	phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
 				priv->phy_interface);
-	if (!phydev)
-		phydev = of_phy_connect_fixed_link(dev, &adjust_link,
-						   priv->phy_interface);
 	if (!phydev) {
 		dev_err(&dev->dev, "Could not attach to PHY\n");
 		return -ENODEV;
@@ -3790,6 +3787,17 @@ static int ucc_geth_probe(struct platform_device* ofdev)
 	ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
 
 	ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
+	if (!ug_info->phy_node) {
+		/* In the case of a fixed PHY, the DT node associated
+		 * to the PHY is the Ethernet MAC DT node.
+		 */
+		if (of_phy_is_fixed_link(np)) {
+			err = of_phy_register_fixed_link(np);
+			if (err)
+				return err;
+		}
+		ug_info->phy_node = np;
+	}
 
 	/* Find the TBI PHY node.  If it's not there, we don't support SGMII */
 	ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);

drivers/of/of_mdio.c

@@ -245,44 +245,6 @@ struct phy_device *of_phy_connect(struct net_device *dev,
 }
 EXPORT_SYMBOL(of_phy_connect);
 
-/**
- * of_phy_connect_fixed_link - Parse fixed-link property and return a dummy phy
- * @dev: pointer to net_device claiming the phy
- * @hndlr: Link state callback for the network device
- * @iface: PHY data interface type
- *
- * This function is a temporary stop-gap and will be removed soon.  It is
- * only to support the fs_enet, ucc_geth and gianfar Ethernet drivers.  Do
- * not call this function from new drivers.
- */
-struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
-					     void (*hndlr)(struct net_device *),
-					     phy_interface_t iface)
-{
-	struct device_node *net_np;
-	char bus_id[MII_BUS_ID_SIZE + 3];
-	struct phy_device *phy;
-	const __be32 *phy_id;
-	int sz;
-
-	if (!dev->dev.parent)
-		return NULL;
-
-	net_np = dev->dev.parent->of_node;
-	if (!net_np)
-		return NULL;
-
-	phy_id = of_get_property(net_np, "fixed-link", &sz);
-	if (!phy_id || sz < sizeof(*phy_id))
-		return NULL;
-
-	sprintf(bus_id, PHY_ID_FMT, "fixed-0", be32_to_cpu(phy_id[0]));
-
-	phy = phy_connect(dev, bus_id, hndlr, iface);
-	return IS_ERR(phy) ? NULL : phy;
-}
-EXPORT_SYMBOL(of_phy_connect_fixed_link);
-
 /**
  * of_phy_attach - Attach to a PHY without starting the state machine
  * @dev: pointer to net_device claiming the phy

include/linux/of_mdio.h

@@ -22,9 +22,6 @@ extern struct phy_device *of_phy_connect(struct net_device *dev,
 struct phy_device *of_phy_attach(struct net_device *dev,
 				 struct device_node *phy_np, u32 flags,
 				 phy_interface_t iface);
-extern struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
-					 void (*hndlr)(struct net_device *),
-					 phy_interface_t iface);
 
 extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
 
@@ -59,13 +56,6 @@ static inline struct phy_device *of_phy_attach(struct net_device *dev,
 	return NULL;
 }
 
-static inline struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
-							   void (*hndlr)(struct net_device *),
-							   phy_interface_t iface)
-{
-	return NULL;
-}
-
 static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
 {
 	return NULL;