[PATCH net-next v2 08/13] net: stmmac: starfive: use stmmac_get_phy_intf_sel()
From: Russell King (Oracle) <hidden>
Date: 2025-11-11 08:12:44
Also in:
linux-arm-kernel, linux-mediatek, linux-mips
Subsystem:
networking drivers, starfive dwmac glue layer, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Emil Renner Berthing, Minda Chen, Linus Torvalds
Use stmmac_get_phy_intf_sel() to decode the PHY interface mode to the phy_intf_sel value, validate the result and use that to set the control register to select the operating mode for the DWMAC core. Signed-off-by: Russell King (Oracle) <redacted> --- .../ethernet/stmicro/stmmac/dwmac-starfive.c | 24 +++++-------------- 1 file changed, 6 insertions(+), 18 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
index 1ef72576c6f1..16b955a6d77b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c@@ -15,8 +15,6 @@ #include "stmmac_platform.h" -#define STARFIVE_DWMAC_PHY_INFT_RGMII PHY_INTF_SEL_RGMII -#define STARFIVE_DWMAC_PHY_INFT_RMII PHY_INTF_SEL_RMII #define STARFIVE_DWMAC_PHY_INFT_FIELD 0x7U #define JH7100_SYSMAIN_REGISTER49_DLYCHAIN 0xc8
@@ -35,25 +33,15 @@ static int starfive_dwmac_set_mode(struct plat_stmmacenet_data *plat_dat) struct starfive_dwmac *dwmac = plat_dat->bsp_priv; struct regmap *regmap; unsigned int args[2]; - unsigned int mode; + int phy_intf_sel; int err; - switch (plat_dat->phy_interface) { - case PHY_INTERFACE_MODE_RMII: - mode = STARFIVE_DWMAC_PHY_INFT_RMII; - break; - - case PHY_INTERFACE_MODE_RGMII: - case PHY_INTERFACE_MODE_RGMII_ID: - case PHY_INTERFACE_MODE_RGMII_RXID: - case PHY_INTERFACE_MODE_RGMII_TXID: - mode = STARFIVE_DWMAC_PHY_INFT_RGMII; - break; - - default: + phy_intf_sel = stmmac_get_phy_intf_sel(plat_dat->phy_interface); + if (phy_intf_sel != PHY_INTF_SEL_RGMII && + phy_intf_sel != PHY_INTF_SEL_RMII) { dev_err(dwmac->dev, "unsupported interface %s\n", phy_modes(plat_dat->phy_interface)); - return -EINVAL; + return phy_intf_sel < 0 ? phy_intf_sel : -EINVAL; } regmap = syscon_regmap_lookup_by_phandle_args(dwmac->dev->of_node,
@@ -65,7 +53,7 @@ static int starfive_dwmac_set_mode(struct plat_stmmacenet_data *plat_dat) /* args[0]:offset args[1]: shift */ err = regmap_update_bits(regmap, args[0], STARFIVE_DWMAC_PHY_INFT_FIELD << args[1], - mode << args[1]); + phy_intf_sel << args[1]); if (err) return dev_err_probe(dwmac->dev, err, "error setting phy mode\n");
--
2.47.3