openwrt/target/linux/generic/pending-6.1/724-net-phy-realtek-use-genphy_soft_reset-for-2.5G-PHYs.patch

From 85cd45580f5e3b26068cccb7d6173f200e754dc0 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Sun, 2 Apr 2023 23:56:16 +0100
Subject: [PATCH 1/2] net: phy: realtek: use genphy_soft_reset for 2.5G PHYs

Some vendor bootloaders do weird things with those PHYs which result in
link modes being reported wrongly. Start from a clean sheet by resetting
the PHY.

Reported-by: Yevhen Kolomeiko <jarvis2709@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 drivers/net/phy/realtek.c | 6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -1038,6 +1038,7 @@ static struct phy_driver realtek_drvs[]
 		.write_page	= rtl821x_write_page,
 		.read_mmd	= rtl822x_read_mmd,
 		.write_mmd	= rtl822x_write_mmd,
+		.soft_reset     = genphy_soft_reset,
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc840),
 		.name		= "RTL8226B_RTL8221B 2.5Gbps PHY",
@@ -1050,6 +1051,7 @@ static struct phy_driver realtek_drvs[]
 		.write_page	= rtl821x_write_page,
 		.read_mmd	= rtl822x_read_mmd,
 		.write_mmd	= rtl822x_write_mmd,
+		.soft_reset     = genphy_soft_reset,
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc838),
 		.name           = "RTL8226-CG 2.5Gbps PHY",
@@ -1060,6 +1062,7 @@ static struct phy_driver realtek_drvs[]
 		.resume         = rtlgen_resume,
 		.read_page      = rtl821x_read_page,
 		.write_page     = rtl821x_write_page,
+		.soft_reset     = genphy_soft_reset,
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc848),
 		.name           = "RTL8226B-CG_RTL8221B-CG 2.5Gbps PHY",
@@ -1070,6 +1073,7 @@ static struct phy_driver realtek_drvs[]
 		.resume         = rtlgen_resume,
 		.read_page      = rtl821x_read_page,
 		.write_page     = rtl821x_write_page,
+		.soft_reset     = genphy_soft_reset,
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc849),
 		.name           = "RTL8221B-VB-CG 2.5Gbps PHY",
@@ -1081,6 +1085,7 @@ static struct phy_driver realtek_drvs[]
 		.resume         = rtlgen_resume,
 		.read_page      = rtl821x_read_page,
 		.write_page     = rtl821x_write_page,
+		.soft_reset     = genphy_soft_reset,
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc84a),
 		.name           = "RTL8221B-VM-CG 2.5Gbps PHY",
@@ -1092,6 +1097,7 @@ static struct phy_driver realtek_drvs[]
 		.resume         = rtlgen_resume,
 		.read_page      = rtl821x_read_page,
 		.write_page     = rtl821x_write_page,
+		.soft_reset     = genphy_soft_reset,
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc961),
 		.name		= "RTL8366RB Gigabit Ethernet",