[openwrt/openwrt] mediatek: fix 2.5G PHY LED polarity for MT7987

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/b5195cd473a9eb622073709e3a32ea51770095eb

commit b5195cd473a9eb622073709e3a32ea51770095eb
Author: Chukun Pan <amadeus at jmu.edu.cn>
AuthorDate: Fri Dec 5 20:16:02 2025 +0800

    mediatek: fix 2.5G PHY LED polarity for MT7987
    
    The patch that adds MT7987 support to the mtk-2p5ge
    driver does the following:
    
    case MTK_2P5GPHY_ID_MT7987:
            phy_clear_bits_mmd MTK_PHY_LED_ON_POLARITY
    case MTK_2P5GPHY_ID_MT7988:
            phy_set_bits_mmd.. MTK_PHY_LED_ON_POLARITY
    
    phy_set_bits_mmd... MTK_PHY_LED_ON_POLARITY | xxx
    
    This clearly resulted in the LED polarity of the 2.5G PHY
    on the MT7987 being reversed. Remove redundant MMD operations
    to fix the 2.5G PHY LED error on Bananapi BPi-R4 Lite.
    
    Fixes: d62fc50f ("mediatek: import patches from SDK to support MT7987 Ethernet")
    Signed-off-by: Chukun Pan <amadeus at jmu.edu.cn>
---
 ...2-net-phy-mediatek-i2p5g-add-support-for-mt7987.patch | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/target/linux/mediatek/patches-6.12/752-net-phy-mediatek-i2p5g-add-support-for-mt7987.patch b/target/linux/mediatek/patches-6.12/752-net-phy-mediatek-i2p5g-add-support-for-mt7987.patch
index de720a3571..eea7f6e79a 100644
--- a/target/linux/mediatek/patches-6.12/752-net-phy-mediatek-i2p5g-add-support-for-mt7987.patch
+++ b/target/linux/mediatek/patches-6.12/752-net-phy-mediatek-i2p5g-add-support-for-mt7987.patch
@@ -344,7 +344,7 @@
  {
  	struct mtk_i2p5ge_phy_priv *priv = phydev->priv;
  	void __iomem *mcu_csr_base, *pmb_addr;
-@@ -135,7 +449,20 @@ static int mt798x_2p5ge_phy_config_init(
+@@ -135,15 +449,27 @@ static int mt798x_2p5ge_phy_config_init(
  	if (phydev->interface != PHY_INTERFACE_MODE_INTERNAL)
  		return -ENODEV;
  
@@ -366,7 +366,17 @@
  	if (ret < 0)
  		return ret;
  
-@@ -293,6 +620,7 @@ static int mt798x_2p5ge_phy_probe(struct
+ 	/* Setup LED */
+ 	phy_set_bits_mmd(phydev, MDIO_MMD_VEND2, MTK_PHY_LED0_ON_CTRL,
+-			 MTK_PHY_LED_ON_POLARITY | MTK_PHY_LED_ON_LINK10 |
+-			 MTK_PHY_LED_ON_LINK100 | MTK_PHY_LED_ON_LINK1000 |
+-			 MTK_PHY_LED_ON_LINK2500);
++			 MTK_PHY_LED_ON_LINK10 | MTK_PHY_LED_ON_LINK100 |
++			 MTK_PHY_LED_ON_LINK1000 | MTK_PHY_LED_ON_LINK2500);
+ 	phy_set_bits_mmd(phydev, MDIO_MMD_VEND2, MTK_PHY_LED1_ON_CTRL,
+ 			 MTK_PHY_LED_ON_FDX | MTK_PHY_LED_ON_HDX);
+ 
+@@ -293,6 +619,7 @@ static int mt798x_2p5ge_phy_probe(struct
  		return -ENOMEM;
  
  	switch (phydev->drv->phy_id) {
@@ -374,7 +384,7 @@
  	case MTK_2P5GPHY_ID_MT7988:
  		/* The original hardware only sets MDIO_DEVS_PMAPMD */
  		phydev->c45_ids.mmds_present |= MDIO_DEVS_PCS |
-@@ -312,6 +640,20 @@ static int mt798x_2p5ge_phy_probe(struct
+@@ -312,6 +639,20 @@ static int mt798x_2p5ge_phy_probe(struct
  
  static struct phy_driver mtk_2p5gephy_driver[] = {
  	{