openwrt/target/linux/generic/backport-6.6/781-16-v6.13-net-phy-realtek-change-order-of-calls-in-C22-read_st.patch

From 68d5cd09e8919679ce13b85950debea4b2e98e04 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 10 Oct 2024 14:07:26 +0100
Subject: [PATCH 4/5] net: phy: realtek: change order of calls in C22
 read_status()

Always call rtlgen_read_status() first, so genphy_read_status() which
is called by it clears bits in case auto-negotiation has not completed.
Also clear 10GBT link-partner advertisement bits in case auto-negotiation
is disabled or has not completed.

Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://patch.msgid.link/b15929a41621d215c6b2b57393368086589569ec.1728565530.git.daniel@makrotopia.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
 drivers/net/phy/realtek.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -949,17 +949,25 @@ static void rtl822xb_update_interface(st
 
 static int rtl822x_read_status(struct phy_device *phydev)
 {
-	if (phydev->autoneg == AUTONEG_ENABLE) {
-		int lpadv = phy_read_paged(phydev, 0xa5d, 0x13);
+	int lpadv, ret;
 
-		if (lpadv < 0)
-			return lpadv;
+	ret = rtlgen_read_status(phydev);
+	if (ret < 0)
+		return ret;
 
-		mii_10gbt_stat_mod_linkmode_lpa_t(phydev->lp_advertising,
-						  lpadv);
+	if (phydev->autoneg == AUTONEG_DISABLE ||
+	    !phydev->autoneg_complete) {
+		mii_10gbt_stat_mod_linkmode_lpa_t(phydev->lp_advertising, 0);
+		return 0;
 	}
 
-	return rtlgen_read_status(phydev);
+	lpadv = phy_read_paged(phydev, 0xa5d, 0x13);
+	if (lpadv < 0)
+		return lpadv;
+
+	mii_10gbt_stat_mod_linkmode_lpa_t(phydev->lp_advertising, lpadv);
+
+	return 0;
 }
 
 static int rtl822xb_read_status(struct phy_device *phydev)