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From 44f947bb8ef5f4add9f2d84e1ff53afd8f2f5537 Mon Sep 17 00:00:00 2001
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From: Peter Robinson <pbrobinson@gmail.com>
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Date: Wed, 16 Mar 2016 15:21:44 +0000
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Subject: [PATCH 1/2] Revert "stmmac: Fix 'eth0: No PHY found' regression"
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This reverts commit 88f8b1bb41c6208f81b6a480244533ded7b59493.
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---
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drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 11 ++++++++++-
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drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 9 +--------
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include/linux/stmmac.h | 1 -
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3 files changed, 11 insertions(+), 10 deletions(-)
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diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
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index efb54f3..0faf163 100644
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--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
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+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
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@@ -199,12 +199,21 @@ int stmmac_mdio_register(struct net_device *ndev)
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struct stmmac_priv *priv = netdev_priv(ndev);
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struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
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int addr, found;
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- struct device_node *mdio_node = priv->plat->mdio_node;
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+ struct device_node *mdio_node = NULL;
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+ struct device_node *child_node = NULL;
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if (!mdio_bus_data)
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return 0;
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if (IS_ENABLED(CONFIG_OF)) {
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+ for_each_child_of_node(priv->device->of_node, child_node) {
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+ if (of_device_is_compatible(child_node,
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+ "snps,dwmac-mdio")) {
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+ mdio_node = child_node;
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+ break;
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+ }
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+ }
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+
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if (mdio_node) {
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netdev_dbg(ndev, "FOUND MDIO subnode\n");
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} else {
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diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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index 4514ba7..6a52fa1 100644
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--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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@@ -110,7 +110,6 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
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struct device_node *np = pdev->dev.of_node;
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struct plat_stmmacenet_data *plat;
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struct stmmac_dma_cfg *dma_cfg;
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- struct device_node *child_node = NULL;
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plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
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if (!plat)
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@@ -141,19 +140,13 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
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plat->phy_node = of_node_get(np);
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}
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- for_each_child_of_node(np, child_node)
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- if (of_device_is_compatible(child_node, "snps,dwmac-mdio")) {
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- plat->mdio_node = child_node;
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- break;
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- }
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-
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/* "snps,phy-addr" is not a standard property. Mark it as deprecated
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* and warn of its use. Remove this when phy node support is added.
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*/
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if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
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dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
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- if ((plat->phy_node && !of_phy_is_fixed_link(np)) || !plat->mdio_node)
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+ if ((plat->phy_node && !of_phy_is_fixed_link(np)) || plat->phy_bus_name)
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plat->mdio_bus_data = NULL;
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else
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plat->mdio_bus_data =
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diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
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index 881a79d..eead8ab 100644
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--- a/include/linux/stmmac.h
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+++ b/include/linux/stmmac.h
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@@ -100,7 +100,6 @@ struct plat_stmmacenet_data {
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int interface;
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struct stmmac_mdio_bus_data *mdio_bus_data;
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struct device_node *phy_node;
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- struct device_node *mdio_node;
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struct stmmac_dma_cfg *dma_cfg;
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int clk_csr;
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int has_gmac;
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--
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2.5.0
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