netdev - [PATCH net-next 4/9] net: stmmac: rk: combine rv1126 set_*

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Message-Id: <E1uPk2z-004CFT-0e@rmk-PC.armlinux.org.uk>
Date: Thu, 12 Jun 2025 16:40:57 +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 4/9] net: stmmac: rk: combine rv1126 set_*_speed()
 methods

Just like rk3568, there is no need to have separate RGMII and RMII
methods to set clk_mac_speed() as rgmii_clock() can be used to return
the clock rate for both RGMII and RMII interface modes. Combine these
two methods.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 .../net/ethernet/stmicro/stmmac/dwmac-rk.c    | 33 +++----------------
 1 file changed, 4 insertions(+), 29 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 7b5e989bb77f..c7b64f0a2931 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1496,7 +1496,7 @@ static void rv1126_set_to_rmii(struct rk_priv_data *bsp_priv)
 		     RV1126_GMAC_PHY_INTF_SEL_RMII);
 }
 
-static void rv1126_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
+static void rv1126_set_clk_mac_speed(struct rk_priv_data *bsp_priv, int speed)
 {
 	struct clk *clk_mac_speed = bsp_priv->clks[RK_CLK_MAC_SPEED].clk;
 	struct device *dev = &bsp_priv->pdev->dev;
@@ -1505,32 +1505,7 @@ static void rv1126_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
 
 	rate = rgmii_clock(speed);
 	if (rate < 0) {
-		dev_err(dev, "unknown speed value for RGMII speed=%d", speed);
-		return;
-	}
-
-	ret = clk_set_rate(clk_mac_speed, rate);
-	if (ret)
-		dev_err(dev, "%s: set clk_mac_speed rate %ld failed %d\n",
-			__func__, rate, ret);
-}
-
-static void rv1126_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
-{
-	struct clk *clk_mac_speed = bsp_priv->clks[RK_CLK_MAC_SPEED].clk;
-	struct device *dev = &bsp_priv->pdev->dev;
-	unsigned long rate;
-	int ret;
-
-	switch (speed) {
-	case 10:
-		rate = 2500000;
-		break;
-	case 100:
-		rate = 25000000;
-		break;
-	default:
-		dev_err(dev, "unknown speed value for RGMII speed=%d", speed);
+		dev_err(dev, "unknown speed value for GMAC speed=%d", speed);
 		return;
 	}
 
@@ -1543,8 +1518,8 @@ static void rv1126_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
 static const struct rk_gmac_ops rv1126_ops = {
 	.set_to_rgmii = rv1126_set_to_rgmii,
 	.set_to_rmii = rv1126_set_to_rmii,
-	.set_rgmii_speed = rv1126_set_rgmii_speed,
-	.set_rmii_speed = rv1126_set_rmii_speed,
+	.set_rgmii_speed = rv1126_set_clk_mac_speed,
+	.set_rmii_speed = rv1126_set_clk_mac_speed,
 };
 
 static int rk_gmac_clk_init(struct plat_stmmacenet_data *plat)
-- 
2.30.2