netdev - [PATCH net-next 3/3] net: stmmac: rk: remove unnecessary clk

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Message-Id: <E1uR6sj-004Ku5-HR@rmk-PC.armlinux.org.uk>
Date: Mon, 16 Jun 2025 11:16:01 +0100
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	netdev@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH net-next 3/3] net: stmmac: rk: remove unnecessary clk_mac

The stmmac platform code already gets the "stmmaceth" clock, so there
is no need for drivers to get it. Use the stored pointer in struct
plat_stmmacenet_data instead of getting and storing our own pointer.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 7ee101a6cfcf..79b92130a03f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -80,7 +80,6 @@ struct rk_priv_data {
 
 	struct clk_bulk_data *clks;
 	int num_clks;
-	struct clk *clk_mac;
 	struct clk *clk_phy;
 
 	struct reset_control *phy_reset;
@@ -1408,16 +1407,10 @@ static int rk_gmac_clk_init(struct plat_stmmacenet_data *plat)
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to get clocks\n");
 
-	/* "stmmaceth" will be enabled by the core */
-	bsp_priv->clk_mac = devm_clk_get(dev, "stmmaceth");
-	ret = PTR_ERR_OR_ZERO(bsp_priv->clk_mac);
-	if (ret)
-		return dev_err_probe(dev, ret, "Cannot get stmmaceth clock\n");
-
 	if (bsp_priv->clock_input) {
 		dev_info(dev, "clock input from PHY\n");
 	} else if (phy_iface == PHY_INTERFACE_MODE_RMII) {
-		clk_set_rate(bsp_priv->clk_mac, 50000000);
+		clk_set_rate(plat->stmmac_clk, 50000000);
 	}
 
 	if (plat->phy_node && bsp_priv->integrated_phy) {
-- 
2.30.2