linux-kernel - [PATCH net-next v4 07/14] net:phy:motorcomm: Add PHY_INTERFACE_MODE

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Message-Id: <20250408092835.3952-8-Frank.Sae@motor-comm.com>
Date: Tue,  8 Apr 2025 17:28:28 +0800
From: Frank Sae <Frank.Sae@...or-comm.com>
To: Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Frank <Frank.Sae@...or-comm.com>,
	netdev@...r.kernel.org
Cc: Masahiro Yamada <masahiroy@...nel.org>,
	Parthiban.Veerasooran@...rochip.com,
	linux-kernel@...r.kernel.org,
	"andrew+netdev @ lunn . ch" <andrew+netdev@...n.ch>,
	lee@...ger.us,
	horms@...nel.org,
	linux-doc@...r.kernel.org,
	corbet@....net,
	geert+renesas@...der.be,
	xiaogang.fan@...or-comm.com,
	fei.zhang@...or-comm.com,
	hua.sun@...or-comm.com
Subject: [PATCH net-next v4 07/14] net:phy:motorcomm: Add PHY_INTERFACE_MODE_INTERNAL to support YT6801

YT6801 NIC Integrated a PHY that is YT8531S, but it used GMII interface.
Add a case of PHY_INTERFACE_MODE_INTERNAL to support YT6801.

Signed-off-by: Frank Sae <Frank.Sae@...or-comm.com>
---
 drivers/net/phy/motorcomm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/phy/motorcomm.c b/drivers/net/phy/motorcomm.c
index 0e91f5d1a..ac3a46939 100644
--- a/drivers/net/phy/motorcomm.c
+++ b/drivers/net/phy/motorcomm.c
@@ -896,6 +896,12 @@ static int ytphy_rgmii_clk_delay_config(struct phy_device *phydev)
 		val |= FIELD_PREP(YT8521_RC1R_RX_DELAY_MASK, rx_reg) |
 		       FIELD_PREP(YT8521_RC1R_GE_TX_DELAY_MASK, tx_reg);
 		break;
+	case PHY_INTERFACE_MODE_INTERNAL:
+		if (phydev->drv->phy_id != PHY_ID_YT8531S)
+			return -EOPNOTSUPP;
+
+		dev_info_once(&phydev->mdio.dev, "Integrated YT8531S phy of YT6801.\n");
+		return 0;
 	default: /* do not support other modes */
 		return -EOPNOTSUPP;
 	}
-- 
2.34.1