From: Buday Csaba <buday.csaba@prolan.hu>
Date: Mon, 28 Jul 2025 15:29:16 +0000 (+0200)
Subject: net: phy: smsc: add proper reset flags for LAN8710A
X-Git-Tag: v5.10.241~195
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a4f9c504e91eb9f02ff57e73e2eaf31af390632b;p=thirdparty%2Fkernel%2Fstable.git

net: phy: smsc: add proper reset flags for LAN8710A

[ Upstream commit 57ec5a8735dc5dccd1ee68afdb1114956a3fce0d ]

According to the LAN8710A datasheet (Rev. B, section 3.8.5.1), a hardware
reset is required after power-on, and the reference clock (REF_CLK) must be
established before asserting reset.

Signed-off-by: Buday Csaba <buday.csaba@prolan.hu>
Cc: Csókás Bence <csokas.bence@prolan.hu>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250728152916.46249-2-csokas.bence@prolan.hu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index d860a2626b13b..c799c65057677 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -427,6 +427,7 @@ static struct phy_driver smsc_phy_driver[] = {
 
 	/* PHY_BASIC_FEATURES */
 
+	.flags		= PHY_RST_AFTER_CLK_EN,
 	.probe		= smsc_phy_probe,
 	.remove		= smsc_phy_remove,