From: Chaoyi Chen <chaoyi.chen@rock-chips.com>
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>
---
Changes in v2:
- Link to V1: https://lore.kernel.org/netdev/20250806011405.115-1-kernel@airkyi.com/
- Remove get clock frequency from DT prop
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 700858ff6f7c..36fab70283de 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1595,12 +1595,15 @@ static int rk_gmac_clk_init(struct plat_stmmacenet_data *plat)
clk_set_rate(bsp_priv->clk_mac, 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;
--
2.49.0