[PATCH v2 07/21] net: phy: xilinx: Be compatible with live OF tree

[Bin Meng <bmeng.cn@gmail.com>]

Following the same updates that were done to the fixed phy driver,
use ofnode_ APIs instead of fdt_ APIs so that the Xilinx PHY driver
can support live DT.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

---

Changes in v2:
- move device tree parsing from xilinxgmiitorgmii_probe() to
  xilinxgmiitorgmii_config() and use OF APIs

 drivers/net/phy/phy.c               | 23 +++++------
 drivers/net/phy/xilinx_gmii2rgmii.c | 61 ++++++++++++++---------------
 2 files changed, 40 insertions(+), 44 deletions(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index eae40cc0d6..d464379121 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -953,23 +953,20 @@ static struct phy_device *phy_connect_gmii2rgmii(struct mii_dev *bus,
 #endif
 {
 	struct phy_device *phydev = NULL;
-	int sn = dev_of_offset(dev);
-	int off;
-
-	while (sn > 0) {
-		off = fdt_node_offset_by_compatible(gd->fdt_blob, sn,
-						    "xlnx,gmii-to-rgmii-1.0");
-		if (off > 0) {
-			phydev = phy_device_create(bus, off,
+	ofnode node = dev_ofnode(dev);
+
+	while (ofnode_valid(node)) {
+		node = ofnode_by_compatible(node, "xlnx,gmii-to-rgmii-1.0");
+		if (ofnode_valid(node)) {
+			phydev = phy_device_create(bus, 0,
 						   PHY_GMII2RGMII_ID, false,
 						   interface);
+			if (phydev)
+				phydev->node = node;
 			break;
 		}
-		if (off == -FDT_ERR_NOTFOUND)
-			sn = fdt_first_subnode(gd->fdt_blob, sn);
-		else
-			printf("%s: Error finding compat string:%d\n",
-			       __func__, off);
+
+		node = ofnode_first_subnode(node);
 	}
 
 	return phydev;
diff --git a/drivers/net/phy/xilinx_gmii2rgmii.c b/drivers/net/phy/xilinx_gmii2rgmii.c
index 74105c0b7d..635c0570ef 100644
--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -18,9 +18,38 @@ DECLARE_GLOBAL_DATA_PTR;
 
 static int xilinxgmiitorgmii_config(struct phy_device *phydev)
 {
-	struct phy_device *ext_phydev = phydev->priv;
+	ofnode node = phy_get_ofnode(phydev);
+	struct phy_device *ext_phydev;
+	struct ofnode_phandle_args phandle;
+	int ext_phyaddr = -1;
+	int ret;
 
 	debug("%s\n", __func__);
+
+	if (!ofnode_valid(node))
+		return -EINVAL;
+
+	phydev->addr = ofnode_read_u32_default(node, "reg", -1);
+	ret = ofnode_parse_phandle_with_args(node, "phy-handle",
+					     NULL, 0, 0, &phandle);
+	if (ret)
+		return ret;
+
+	ext_phyaddr = ofnode_read_u32_default(phandle.node, "reg", -1);
+	ext_phydev = phy_find_by_mask(phydev->bus,
+				      1 << ext_phyaddr,
+				      PHY_INTERFACE_MODE_RGMII);
+	if (!ext_phydev) {
+		printf("%s, No external phy device found\n", __func__);
+		return -EINVAL;
+	}
+
+	ext_phydev->node = phandle.node;
+	phydev->priv = ext_phydev;
+
+	debug("%s, gmii2rgmmi:0x%x, extphy:0x%x\n", __func__, phydev->addr,
+	      ext_phyaddr);
+
 	if (ext_phydev->drv->config)
 		ext_phydev->drv->config(ext_phydev);
 
@@ -83,11 +112,6 @@ static int xilinxgmiitorgmii_startup(struct phy_device *phydev)
 
 static int xilinxgmiitorgmii_probe(struct phy_device *phydev)
 {
-	int ofnode = phydev->addr;
-	u32 phy_of_handle;
-	int ext_phyaddr = -1;
-	struct phy_device *ext_phydev;
-
 	debug("%s\n", __func__);
 
 	if (phydev->interface != PHY_INTERFACE_MODE_GMII) {
@@ -95,31 +119,6 @@ static int xilinxgmiitorgmii_probe(struct phy_device *phydev)
 		return -EINVAL;
 	}
 
-	/*
-	 * Read the phy address again as the one we read in ethernet driver
-	 * was overwritten for the purpose of storing the ofnode
-	 */
-	phydev->addr = fdtdec_get_int(gd->fdt_blob, ofnode, "reg", -1);
-	phy_of_handle = fdtdec_lookup_phandle(gd->fdt_blob, ofnode,
-					      "phy-handle");
-	if (phy_of_handle > 0)
-		ext_phyaddr = fdtdec_get_int(gd->fdt_blob,
-					     phy_of_handle,
-					     "reg", -1);
-	ext_phydev = phy_find_by_mask(phydev->bus,
-				      1 << ext_phyaddr,
-				      PHY_INTERFACE_MODE_RGMII);
-	if (!ext_phydev) {
-		printf("%s, No external phy device found\n", __func__);
-		return -EINVAL;
-	}
-
-	ext_phydev->node = offset_to_ofnode(phy_of_handle);
-	phydev->priv = ext_phydev;
-
-	debug("%s, gmii2rgmmi:0x%x, extphy:0x%x\n", __func__, phydev->addr,
-	      ext_phyaddr);
-
 	phydev->flags |= PHY_FLAG_BROKEN_RESET;
 
 	return 0;
-- 
2.25.1