From 4826d2c4fcbfcc3ba7887a197143ffe4d444a3d3 Mon Sep 17 00:00:00 2001
From: Antonio Borneo <antonio.borneo@st.com>
Date: Wed, 25 Nov 2020 00:07:56 +0100
Subject: [PATCH] net: phy: realtek: read actual speed on rtl8211f to detect
downshift
The rtl8211f supports downshift and before commit 5502b218e001
("net: phy: use phy_resolve_aneg_linkmode in genphy_read_status")
the read-back of register MII_CTRL1000 was used to detect the
negotiated link speed.
The code added in commit d445dff2df60 ("net: phy: realtek: read
actual speed to detect downshift") is working fine also for this
phy and it's trivial re-using it to restore the downshift
detection on rtl8211f.
Add the phy specific read_status() pointing to the existing
function rtlgen_read_status().
Signed-off-by: Antonio Borneo <antonio.borneo@st.com>
Link: https://lore.kernel.org/r/478f871a-583d-01f1-9cc5-2eea56d8c2a7@huawei.com
Tested-by: Yonglong Liu <liuyonglong@huawei.com>
Link: https://lore.kernel.org/r/20201124230756.887925-1-antonio.borneo@st.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/realtek.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index f71eda945c6a2..99ecd6c4c15a0 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -729,6 +729,7 @@ static struct phy_driver realtek_drvs[] = {
PHY_ID_MATCH_EXACT(0x001cc916),
.name = "RTL8211F Gigabit Ethernet",
.config_init = &rtl8211f_config_init,
+ .read_status = rtlgen_read_status,
.config_intr = &rtl8211f_config_intr,
.handle_interrupt = rtl8211f_handle_interrupt,
.suspend = genphy_suspend,
--
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