netdev - [PATCH RFC net-next 5/7] net: stmmac: s32: use generic stmmac_set_clk_tx

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Message-Id: <E1tkLZ6-004RZO-0H@rmk-PC.armlinux.org.uk>
Date: Tue, 18 Feb 2025 11:15:00 +0000
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>,
	Emil Renner Berthing <kernel@...il.dk>,
	Eric Dumazet <edumazet@...gle.com>,
	Fabio Estevam <festevam@...il.com>,
	imx@...ts.linux.dev,
	Inochi Amaoto <inochiama@...il.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Jan Petrous <jan.petrous@....nxp.com>,
	Jon Hunter <jonathanh@...dia.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Minda Chen <minda.chen@...rfivetech.com>,
	netdev@...r.kernel.org,
	NXP S32 Linux Team <s32@....com>,
	Paolo Abeni <pabeni@...hat.com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>,
	Thierry Reding <treding@...dia.com>
Subject: [PATCH RFC net-next 5/7] net: stmmac: s32: use generic
 stmmac_set_clk_tx_rate()

Use the generic stmmac_set_clk_tx_rate() to configure the MAC transmit
clock.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 .../net/ethernet/stmicro/stmmac/dwmac-s32.c   | 22 +++----------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c
index 6a498833b8ed..b76bfa41af82 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c
@@ -100,24 +100,6 @@ static void s32_gmac_exit(struct platform_device *pdev, void *priv)
 	clk_disable_unprepare(gmac->rx_clk);
 }
 
-static void s32_fix_mac_speed(void *priv, int speed, unsigned int mode)
-{
-	struct s32_priv_data *gmac = priv;
-	long tx_clk_rate;
-	int ret;
-
-	tx_clk_rate = rgmii_clock(speed);
-	if (tx_clk_rate < 0) {
-		dev_err(gmac->dev, "Unsupported/Invalid speed: %d\n", speed);
-		return;
-	}
-
-	dev_dbg(gmac->dev, "Set tx clock to %ld Hz\n", tx_clk_rate);
-	ret = clk_set_rate(gmac->tx_clk, tx_clk_rate);
-	if (ret)
-		dev_err(gmac->dev, "Can't set tx clock\n");
-}
-
 static int s32_dwmac_probe(struct platform_device *pdev)
 {
 	struct plat_stmmacenet_data *plat;
@@ -172,7 +154,9 @@ static int s32_dwmac_probe(struct platform_device *pdev)
 
 	plat->init = s32_gmac_init;
 	plat->exit = s32_gmac_exit;
-	plat->fix_mac_speed = s32_fix_mac_speed;
+
+	plat->clk_tx_i = dmac->tx_clk;
+	plat->set_clk_tx_rate = stmmac_set_clk_tx_rate;
 
 	plat->bsp_priv = gmac;
 
-- 
2.30.2