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net: stmmac: platform: Fix MDIO init for platforms without PHY

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[ Upstream commit d3e014ec7d ]

The current implementation of "stmmac_dt_phy" function initializes
the MDIO platform bus data, even in the absence of PHY. This fix
will skip MDIO initialization if there is no PHY present.

Fixes: 7437127 ("net: stmmac: Convert to phylink and remove phylib logic")
Acked-by: Jayati Sahu <jayati.sahu@samsung.com>
Signed-off-by: Sriram Dash <sriram.dash@samsung.com>
Signed-off-by: Padmanabhan Rajanbabu <p.rajanbabu@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Padmanabhan Rajanbabu
2019-12-19 15:47:01 +05:30
committed by Greg Kroah-Hartman
parent e78db79a59
commit bfdbfd28f7
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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@@ -320,7 +320,7 @@ out:
static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
struct device_node *np, struct device *dev)
{
bool mdio = true;
bool mdio = false;
static const struct of_device_id need_mdio_ids[] = {
{ .compatible = "snps,dwc-qos-ethernet-4.10" },
{},