net: dwmac-imx: Use helper rgmii_clock

Utilize a new helper function rgmii_clock().

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jan Petrous (OSS) <jan.petrous@oss.nxp.com>
Link: https://patch.msgid.link/20241205-upstream_s32cc_gmac-v8-6-ec1d180df815@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index 641f3cd019a3c9d5e63f3cf141d48f79b44187b8..43e0fbba4f77b709e2c8ea49d2679d31dec92afe 100644 (file)
--- 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;
        }