netdev - [PATCH net-next 5/9] net: stmmac: rk: combine clk_mac

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Message-Id: <E1uPk34-004CFZ-3y@rmk-PC.armlinux.org.uk>
Date: Thu, 12 Jun 2025 16:41:02 +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 5/9] net: stmmac: rk: combine clk_mac_speed rate
 setting functions

rk3568_set_gmac_speed() and rv1126_set_clk_mac_speed() are now
identical. Combine these so we have a single copy of this code.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 .../net/ethernet/stmicro/stmmac/dwmac-rk.c    | 65 +++++++------------
 1 file changed, 23 insertions(+), 42 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index c7b64f0a2931..eeef11b60566 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -153,6 +153,25 @@ static int rk_set_reg_speed_rmii(struct rk_priv_data *bsp_priv,
 				speed);
 }
 
+static void rk_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;
+	long rate;
+	int ret;
+
+	rate = rgmii_clock(speed);
+	if (rate < 0) {
+		dev_err(dev, "unknown speed value for GMAC 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);
+}
+
 #define HIWORD_UPDATE(val, mask, shift) \
 		((val) << (shift) | (mask) << ((shift) + 16))
 
@@ -1113,30 +1132,11 @@ static void rk3568_set_to_rmii(struct rk_priv_data *bsp_priv)
 	regmap_write(bsp_priv->grf, con1, RK3568_GMAC_PHY_INTF_SEL_RMII);
 }
 
-static void rk3568_set_gmac_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;
-	long rate;
-	int ret;
-
-	rate = rgmii_clock(speed);
-	if (rate < 0) {
-		dev_err(dev, "unknown speed value for GMAC 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 const struct rk_gmac_ops rk3568_ops = {
 	.set_to_rgmii = rk3568_set_to_rgmii,
 	.set_to_rmii = rk3568_set_to_rmii,
-	.set_rgmii_speed = rk3568_set_gmac_speed,
-	.set_rmii_speed = rk3568_set_gmac_speed,
+	.set_rgmii_speed = rk_set_clk_mac_speed,
+	.set_rmii_speed = rk_set_clk_mac_speed,
 	.regs_valid = true,
 	.regs = {
 		0xfe2a0000, /* gmac0 */
@@ -1496,30 +1496,11 @@ static void rv1126_set_to_rmii(struct rk_priv_data *bsp_priv)
 		     RV1126_GMAC_PHY_INTF_SEL_RMII);
 }
 
-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;
-	long rate;
-	int ret;
-
-	rate = rgmii_clock(speed);
-	if (rate < 0) {
-		dev_err(dev, "unknown speed value for GMAC 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 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_clk_mac_speed,
-	.set_rmii_speed = rv1126_set_clk_mac_speed,
+	.set_rgmii_speed = rk_set_clk_mac_speed,
+	.set_rmii_speed = rk_set_clk_mac_speed,
 };
 
 static int rk_gmac_clk_init(struct plat_stmmacenet_data *plat)
-- 
2.30.2