Commit 4838a540 authored by Jose Abreu's avatar Jose Abreu Committed by David S. Miller
Browse files

net: stmmac: Fix wrapper drivers not detecting PHY 



Because of PHYLINK conversion we stopped parsing the phy-handle property
from DT. Unfortunatelly, some wrapper drivers still rely on this phy
node to configure the PHY.

Let's restore the parsing of PHY handle while these wrapper drivers are
not fully converted to PHYLINK.

Fixes: 74371272 ("net: stmmac: Convert to phylink and remove phylib logic")
Reported-by: default avatarCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: default avatarJose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Tested-by: default avatarCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 91d0a48a

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

+2 −2
Original line number Diff line number Diff line
@@ -958,7 +958,7 @@ static int stmmac_init_phy(struct net_device *dev) 
	struct device_node *node;

	int ret;



	node = priv->plat->phy_node;

	node = priv->plat->phylink_node;



	if (node) {

		ret = phylink_of_phy_connect(priv->phylink, node, 0);
@@ -980,7 +980,7 @@ static int stmmac_init_phy(struct net_device *dev) 


static int stmmac_phy_setup(struct stmmac_priv *priv)

{

	struct device_node *node = priv->plat->phy_node;

	struct device_node *node = priv->plat->phylink_node;

	int mode = priv->plat->interface;

	struct phylink *phylink;

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

+8 −1
Original line number Diff line number Diff line
@@ -381,7 +381,13 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac) 


	*mac = of_get_mac_address(np);

	plat->interface = of_get_phy_mode(np);

	plat->phy_node = np;



	/* Some wrapper drivers still rely on phy_node. Let's save it while

	 * they are not converted to phylink. */

	plat->phy_node = of_parse_phandle(np, "phy-handle", 0);



	/* PHYLINK automatically parses the phy-handle property */

	plat->phylink_node = np;



	/* Get max speed of operation from device tree */

	if (of_property_read_u32(np, "max-speed", &plat->max_speed))
@@ -577,6 +583,7 @@ error_pclk_get: 
void stmmac_remove_config_dt(struct platform_device *pdev,

			     struct plat_stmmacenet_data *plat)

{

	of_node_put(plat->phy_node);

	of_node_put(plat->mdio_node);

}

#else

include/linux/stmmac.h

+1 −0
Original line number Diff line number Diff line
@@ -151,6 +151,7 @@ struct plat_stmmacenet_data { 
	int interface;

	struct stmmac_mdio_bus_data *mdio_bus_data;

	struct device_node *phy_node;

	struct device_node *phylink_node;

	struct device_node *mdio_node;

	struct stmmac_dma_cfg *dma_cfg;

	int clk_csr;

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