From 43c2a7969b38a457d5d9f5dec943773667bddf8b Mon Sep 17 00:00:00 2001
From: Sven Schuchmann <75126737+Schuchmann@users.noreply.github.com>
Date: Wed, 17 Jun 2026 10:37:31 +0200
Subject: [PATCH] Fix MMD1 to MMD1F in phy_set_bits_mmd call

Access to DP83TC812_RGMII_ID_CTRL is done via MMD1F (not MMD1 )
---
 linux_drivers/dp83tc812.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux_drivers/dp83tc812.c b/linux_drivers/dp83tc812.c
index 9415415..552e803 100644
--- a/linux_drivers/dp83tc812.c
+++ b/linux_drivers/dp83tc812.c
@@ -488,7 +488,7 @@ static int DP83TC812_config_init(struct phy_device *phydev)
 			rgmii_delay |= DP83TC812_TX_CLK_SHIFT;
 
 		if (rgmii_delay) {
-			ret = phy_set_bits_mmd(phydev, MMD1,
+			ret = phy_set_bits_mmd(phydev, MMD1F,
 					       DP83TC812_RGMII_ID_CTRL,
 					       rgmii_delay);
 			if (ret)