diff options
| author | Mathieu Olivari <mathieu@codeaurora.org> | 2015-05-27 21:02:48 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-31 03:04:36 +0300 |
| commit | 277323814e495616dd76409bec855f5c68f54988 (patch) | |
| tree | ba0b25feef23b9ea1bbd54a8193c292b5886aacf | |
| parent | 5790cf3c00c2f92aacba348e13f8a9a8f5dd96bd (diff) | |
| download | linux-277323814e495616dd76409bec855f5c68f54988.tar.xz | |
stmmac: add fixed-link device-tree support
In case DT is used, this change adds the ability to the stmmac driver to
detect a fixed-link PHY, instanciate it, and use it during
phy_connect().
Fixed link PHYs DT usage is described in:
Documentation/devicetree/bindings/net/fixed-link.txt
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 12 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 31c64169f2ec..c46178cf4d50 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -856,7 +856,7 @@ static int stmmac_init_phy(struct net_device *dev) * device as well. * Note: phydev->phy_id is the result of reading the UID PHY registers. */ - if (phydev->phy_id == 0) { + if (!priv->plat->phy_node && phydev->phy_id == 0) { phy_disconnect(phydev); return -ENODEV; } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 8d23155a1a7e..f3918c7e7eeb 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -148,6 +148,14 @@ static int stmmac_probe_config_dt(struct platform_device *pdev, /* If we find a phy-handle property, use it as the PHY */ plat->phy_node = of_parse_phandle(np, "phy-handle", 0); + /* If phy-handle is not specified, check if we have a fixed-phy */ + if (!plat->phy_node && of_phy_is_fixed_link(np)) { + if ((of_phy_register_fixed_link(np) < 0)) + return -ENODEV; + + plat->phy_node = of_node_get(np); + } + /* "snps,phy-addr" is not a standard property. Mark it as deprecated * and warn of its use. Remove this when phy node support is added. */ @@ -212,8 +220,10 @@ static int stmmac_probe_config_dt(struct platform_device *pdev, if (of_find_property(np, "snps,pbl", NULL)) { dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg), GFP_KERNEL); - if (!dma_cfg) + if (!dma_cfg) { + of_node_put(np); return -ENOMEM; + } plat->dma_cfg = dma_cfg; of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl); dma_cfg->fixed_burst = |