netdev - [PATCH v4 06/16] net: dwmac-imx: Use helper rgmii

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Message-Id: <20241028-upstream_s32cc_gmac-v4-6-03618f10e3e2@oss.nxp.com>
Date: Mon, 28 Oct 2024 21:24:48 +0100
From: Jan Petrous via B4 Relay <devnull+jan.petrous.oss.nxp.com@...nel.org>
To: Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Jose Abreu <joabreu@...opsys.com>, "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Vinod Koul <vkoul@...nel.org>, 
 Richard Cochran <richardcochran@...il.com>, Andrew Lunn <andrew@...n.ch>, 
 Heiner Kallweit <hkallweit1@...il.com>, 
 Russell King <linux@...linux.org.uk>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Emil Renner Berthing <kernel@...il.dk>, 
 Minda Chen <minda.chen@...rfivetech.com>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, 
 Iyappan Subramanian <iyappan@...amperecomputing.com>, 
 Keyur Chudgar <keyur@...amperecomputing.com>, 
 Quan Nguyen <quan@...amperecomputing.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: linux-stm32@...md-mailman.stormreply.com, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 netdev@...r.kernel.org, linux-arm-msm@...r.kernel.org, imx@...ts.linux.dev, 
 devicetree@...r.kernel.org, NXP S32 Linux Team <s32@....com>, 
 "Jan Petrous (OSS)" <jan.petrous@....nxp.com>
Subject: [PATCH v4 06/16] net: dwmac-imx: Use helper rgmii_clock

From: "Jan Petrous (OSS)" <jan.petrous@....nxp.com>

Utilize a new helper function rgmii_clock().

Signed-off-by: Jan Petrous (OSS) <jan.petrous@....nxp.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index 6b65420e11b5..4147b56d40e1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
@@ -186,7 +186,7 @@ static void imx_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mod
 {
 	struct plat_stmmacenet_data *plat_dat;
 	struct imx_priv_data *dwmac = priv;
-	unsigned long rate;
+	long rate;
 	int err;

 	plat_dat = dwmac->plat_dat;
@@ -196,17 +196,8 @@ static void imx_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mod
 	    (plat_dat->mac_interface == PHY_INTERFACE_MODE_MII))
 		return;

-	switch (speed) {
-	case SPEED_1000:
-		rate = 125000000;
-		break;
-	case SPEED_100:
-		rate = 25000000;
-		break;
-	case SPEED_10:
-		rate = 2500000;
-		break;
-	default:
+	rate = rgmii_clock(speed);
+	if (rate < 0) {
 		dev_err(dwmac->dev, "invalid speed %u\n", speed);
 		return;
 	}

-- 
2.46.0