From 23e3cea0589cd65b9c405f23720e4ba8b1264cb3 Mon Sep 17 00:00:00 2001
From: Sam Shih <sam.shih@mediatek.com>
Date: Fri, 2 Jun 2023 13:06:00 +0800
Subject: [PATCH] 
 [backport-networking-drivers][999-1704-net-phy-aquantia-add-AQR113C.patch]

---
 drivers/net/phy/aquantia_main.c | 45 +++++++++++++++------------------
 1 file changed, 21 insertions(+), 24 deletions(-)

diff --git a/drivers/net/phy/aquantia_main.c b/drivers/net/phy/aquantia_main.c
index 75d8351ee..e7495c9a7 100644
--- a/drivers/net/phy/aquantia_main.c
+++ b/drivers/net/phy/aquantia_main.c
@@ -22,6 +22,7 @@
 #define PHY_ID_AQR107	0x03a1b4e0
 #define PHY_ID_AQCS109	0x03a1b5c2
 #define PHY_ID_AQR405	0x03a1b4b0
+#define PHY_ID_AQR113C	0x31c31c12
 
 #define MDIO_PHYXS_VEND_IF_STATUS		0xe812
 #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK	GENMASK(7, 3)
@@ -303,17 +304,6 @@ static int aqr_read_status(struct phy_device *phydev)
 	return genphy_c45_read_status(phydev);
 }
 
-static int aqr107_read_downshift_event(struct phy_device *phydev)
-{
-	int val;
-
-	val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_INT_STATUS1);
-	if (val < 0)
-		return val;
-
-	return !!(val & MDIO_AN_TX_VEND_INT_STATUS1_DOWNSHIFT);
-}
-
 static int aqr107_read_rate(struct phy_device *phydev)
 {
 	int val;
@@ -388,13 +378,7 @@ static int aqr107_read_status(struct phy_device *phydev)
 		break;
 	}
 
-	val = aqr107_read_downshift_event(phydev);
-	if (val <= 0)
-		return val;
-
-	phydev_warn(phydev, "Downshift occurred! Cabling may be defective.\n");
-
-	/* Read downshifted rate from vendor register */
+	/* Read possibly downshifted rate from vendor register */
 	return aqr107_read_rate(phydev);
 }
 
@@ -516,9 +500,6 @@ static int aqr107_config_init(struct phy_device *phydev)
 	if (!ret)
 		aqr107_chip_info(phydev);
 
-	/* ensure that a latched downshift event is cleared */
-	aqr107_read_downshift_event(phydev);
-
 	return aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT);
 }
 
@@ -543,9 +524,6 @@ static int aqcs109_config_init(struct phy_device *phydev)
 	if (ret)
 		return ret;
 
-	/* ensure that a latched downshift event is cleared */
-	aqr107_read_downshift_event(phydev);
-
 	return aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT);
 }
 
@@ -695,6 +673,24 @@ static struct phy_driver aqr_driver[] = {
 	.ack_interrupt	= aqr_ack_interrupt,
 	.read_status	= aqr_read_status,
 },
+{
+	PHY_ID_MATCH_MODEL(PHY_ID_AQR113C),
+	.name           = "Aquantia AQR113C",
+	.probe          = aqr107_probe,
+	.config_init    = aqr107_config_init,
+	.config_aneg    = aqr_config_aneg,
+	.config_intr    = aqr_config_intr,
+	.ack_interrupt  = aqr_ack_interrupt,
+	.read_status    = aqr107_read_status,
+	.get_tunable    = aqr107_get_tunable,
+	.set_tunable    = aqr107_set_tunable,
+	.suspend        = aqr107_suspend,
+	.resume         = aqr107_resume,
+	.get_sset_count = aqr107_get_sset_count,
+	.get_strings    = aqr107_get_strings,
+	.get_stats      = aqr107_get_stats,
+	.link_change_notify = aqr107_link_change_notify,
+},
 };
 
 module_phy_driver(aqr_driver);
@@ -707,6 +703,7 @@ static struct mdio_device_id __maybe_unused aqr_tbl[] = {
 	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR107) },
 	{ PHY_ID_MATCH_MODEL(PHY_ID_AQCS109) },
 	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR405) },
+	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR113C) },
 	{ }
 };
 
-- 
2.34.1