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Commit bfdbfd28 authored by Padmanabhan Rajanbabu's avatar Padmanabhan Rajanbabu Committed by Greg Kroah-Hartman
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net: stmmac: platform: Fix MDIO init for platforms without PHY 



[ 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: 74371272 ("net: stmmac: Convert to phylink and remove phylib logic")
Acked-by: default avatarJayati Sahu <jayati.sahu@samsung.com>
Signed-off-by: default avatarSriram Dash <sriram.dash@samsung.com>
Signed-off-by: default avatarPadmanabhan Rajanbabu <p.rajanbabu@samsung.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e78db79a

drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c

+1 −1
Original line number Diff line number Diff line
@@ -320,7 +320,7 @@ static int stmmac_mtl_setup(struct platform_device *pdev, 
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" },

		{},