From: Padmanabhan Rajanbabu p.rajanbabu@samsung.com
[ Upstream commit d3e014ec7d5ebe9644b5486bc530b91e62bbf624 ]
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 --- drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -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" }, {},