commit 1251a93dfd2c6c90c0f18a0256db02c85e6acb8c
author developer <developer@mediatek.com> Mon May 08 22:22:51 2023 +0800
committer developer <developer@mediatek.com> Wed May 10 10:36:52 2023 +0800
tree cc07a8d3d129e67a26b9f8e305015fe3bd17bfa2
parent a7570e7b23ab90e481c4a1589302fd157e1a5e19

[][kernel][mt7988][Fix USXGMII to SGMII mode change issue]

[Description]
Fix USXGMII to SGMII mode change issue.

In the mt7988, the USXGMII and SGMII share the same PHYA.
In order to make sure the SGMII driver can reconfigure PHYA, it has to
check PCS link status when phylink calling to mtk_sgmii_pcs_config().

If without this patch, the SGMII driver might not be able to reconfigure
PHYA when changing the USXGMII to the SGMII.

[Release-log]


Change-Id: Iab56d70ac32bc0f6b4c7235027ac0ebb430a4a01
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7464574