netdev - [PATCH net 2/3] net: mediatek: sgmii: autonegotiation is required

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Date:   Thu, 19 Jan 2023 18:12:47 +0100
From:   Bjørn Mork <bjorn@...k.no>
To:     netdev@...r.kernel.org
Cc:     Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Daniel Golle <daniel@...rotopia.org>,
        Alexander Couzens <lynxis@...0.eu>,
        Bjørn Mork <bjorn@...k.no>
Subject: [PATCH net 2/3] net: mediatek: sgmii: autonegotiation is required

sgmii mode fails if autonegotiation is disabled.

Signed-off-by: Bjørn Mork <bjorn@...k.no>
---
 drivers/net/ethernet/mediatek/mtk_sgmii.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c
index 481f2f1e39f5..d1f2bcb21242 100644
--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c
+++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c
@@ -62,14 +62,9 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
 	 * other words, 1000Mbps or 2500Mbps).
 	 */
 	if (interface == PHY_INTERFACE_MODE_SGMII) {
-		sgm_mode = SGMII_IF_MODE_SGMII;
-		if (phylink_autoneg_inband(mode)) {
-			sgm_mode |= SGMII_REMOTE_FAULT_DIS |
-				    SGMII_SPEED_DUPLEX_AN;
-			use_an = true;
-		} else {
-			use_an = false;
-		}
+		sgm_mode = SGMII_IF_MODE_SGMII | SGMII_REMOTE_FAULT_DIS |
+			   SGMII_SPEED_DUPLEX_AN;
+		use_an = true;
 	} else if (phylink_autoneg_inband(mode)) {
 		/* 1000base-X or 2500base-X autoneg */
 		sgm_mode = SGMII_REMOTE_FAULT_DIS;
-- 
2.30.2