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net: stmmac: add get_interfaces() platform method

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Add a get_interfaces() platform method to allow platforms to indicate
to phylink which interface modes they support - which then allows
phylink to validate on initialisation that the configured PHY interface
mode is actually supported.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1uASLn-0021Qd-Mi@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle) 2025-05-01 12:45:11 +01:00 committed by Jakub Kicinski
parent 1966be55da
commit ca732e990f
2 changed files with 15 additions and 3 deletions
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16
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -1283,10 +1283,20 @@ static int stmmac_phy_setup(struct stmmac_priv *priv)
if (mdio_bus_data)
config->default_an_inband = mdio_bus_data->default_an_inband;
/* Set the platform/firmware specified interface mode. Note, phylink
* deals with the PHY interface mode, not the MAC interface mode.
/* Get the PHY interface modes (at the PHY end of the link) that
* are supported by the platform.
*/
__set_bit(priv->plat->phy_interface, config->supported_interfaces);
if (priv->plat->get_interfaces)
priv->plat->get_interfaces(priv, priv->plat->bsp_priv,
config->supported_interfaces);
/* Set the platform/firmware specified interface mode if the
* supported interfaces have not already been provided using
* phy_interface as a last resort.
*/
if (phy_interface_empty(config->supported_interfaces))
__set_bit(priv->plat->phy_interface,
config->supported_interfaces);
/* If we have an xpcs, it defines which PHY interfaces are supported. */
if (priv->hw->xpcs)

2
include/linux/stmmac.h
View File

@ -233,6 +233,8 @@ struct plat_stmmacenet_data {
u8 tx_sched_algorithm;
struct stmmac_rxq_cfg rx_queues_cfg[MTL_MAX_RX_QUEUES];
struct stmmac_txq_cfg tx_queues_cfg[MTL_MAX_TX_QUEUES];
void (*get_interfaces)(struct stmmac_priv *priv, void *bsp_priv,
unsigned long *interfaces);
int (*set_clk_tx_rate)(void *priv, struct clk *clk_tx_i,
phy_interface_t interface, int speed);
void (*fix_mac_speed)(void *priv, int speed, unsigned int mode);