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net: ethernet: stmmac: dwmac-rk: Make the clk_phy could be used for external phy

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For external phy, clk_phy should be optional, and some external phy
need the clock input from clk_phy. This patch adds support for setting
clk_phy for external phy.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Chaoyi Chen <chaoyi.chen@rock-chips.com>
Link: https://patch.msgid.link/20250815023515.114-1-kernel@airkyi.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Chaoyi Chen
2025-08-15 10:35:15 +08:00
committed by Paolo Abeni
parent 0283b8f134
commit da114122b8
1 changed files with 7 additions and 4 deletions
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11
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
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@@ -1412,12 +1412,15 @@ static int rk_gmac_clk_init(struct plat_stmmacenet_data *plat)
clk_set_rate(plat->stmmac_clk, 50000000);
}
if (plat->phy_node && bsp_priv->integrated_phy) {
if (plat->phy_node) {
bsp_priv->clk_phy = of_clk_get(plat->phy_node, 0);
ret = PTR_ERR_OR_ZERO(bsp_priv->clk_phy);
if (ret)
return dev_err_probe(dev, ret, "Cannot get PHY clock\n");
clk_set_rate(bsp_priv->clk_phy, 50000000);
/* If it is not integrated_phy, clk_phy is optional */
if (bsp_priv->integrated_phy) {
if (ret)
return dev_err_probe(dev, ret, "Cannot get PHY clock\n");
clk_set_rate(bsp_priv->clk_phy, 50000000);
}
}
return 0;