netdev - [PATCH net-next] r8169: set EEE speed down ratio to 1

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Message-ID: <20250904021123.5734-1-hau@realtek.com>
Date: Thu, 4 Sep 2025 10:11:23 +0800
From: ChunHao Lin <hau@...ltek.com>
To: <hkallweit1@...il.com>, <nic_swsd@...ltek.com>, <andrew+netdev@...n.ch>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        ChunHao Lin
	<hau@...ltek.com>
Subject: [PATCH net-next] r8169: set EEE speed down ratio to 1

EEE speed down ratio (mac ocp 0xe056[7:4]) is used to control EEE speed down
rate. The larger this value is, the more power can save. But it actually save
less power then expected, but will impact compatibility. So set it to 1 (mac
ocp 0xe056[7:4] = 0) to improve compatibility.

Signed-off-by: ChunHao Lin <hau@...ltek.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 9c601f271c02..e5427dfce268 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -3409,7 +3409,7 @@ static void rtl_hw_start_8168h_1(struct rtl8169_private *tp)
 		r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
 	}
 
-	r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
+	r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0000);
 	r8168_mac_ocp_modify(tp, 0xe052, 0x6000, 0x8008);
 	r8168_mac_ocp_modify(tp, 0xe0d6, 0x01ff, 0x017f);
 	r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
@@ -3514,7 +3514,7 @@ static void rtl_hw_start_8117(struct rtl8169_private *tp)
 		r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
 	}
 
-	r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
+	r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0000);
 	r8168_mac_ocp_write(tp, 0xea80, 0x0003);
 	r8168_mac_ocp_modify(tp, 0xe052, 0x0000, 0x0009);
 	r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
@@ -3715,7 +3715,7 @@ static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
 	r8168_mac_ocp_modify(tp, 0xc0b4, 0x0000, 0x000c);
 	r8168_mac_ocp_modify(tp, 0xeb6a, 0x00ff, 0x0033);
 	r8168_mac_ocp_modify(tp, 0xeb50, 0x03e0, 0x0040);
-	r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0030);
+	r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0000);
 	r8168_mac_ocp_modify(tp, 0xe040, 0x1000, 0x0000);
 	r8168_mac_ocp_modify(tp, 0xea1c, 0x0003, 0x0001);
 	if (tp->mac_version == RTL_GIGA_MAC_VER_70 ||
-- 
2.43.0