net: phy: nxp-c45-tja11xx: fix the PHY ID mismatch issue when using C45
authorClark Wang <xiaoning.wang@nxp.com>
Thu, 7 Aug 2025 04:08:32 +0000 (12:08 +0800)
committerPaolo Abeni <pabeni@redhat.com>
Tue, 12 Aug 2025 10:01:07 +0000 (12:01 +0200)
commit8ee90742cf29427683294a6a80f1e2b7f4af1cff
tree0e2aabcae3a0da3d18912cc5c6a842a096aa7379
parent89886abd073489e26614e4d80fb8eb70d3938a0b
net: phy: nxp-c45-tja11xx: fix the PHY ID mismatch issue when using C45

TJA1103/04/20/21 support both C22 and C45 accessing methods.

The TJA11xx driver has implemented the match_phy_device() API.
However, it does not handle the C45 ID. If C45 was used to access
TJA11xx, match_phy_device() would always return false due to
phydev->phy_id only used by C22 being empty, resulting in the
generic phy driver being used for TJA11xx PHYs.

Therefore, check phydev->c45_ids.device_ids[MDIO_MMD_PMAPMD] when
using C45.

Fixes: 1b76b2497aba ("net: phy: nxp-c45-tja11xx: simplify .match_phy_device OP")
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Link: https://patch.msgid.link/20250807040832.2455306-1-xiaoning.wang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
drivers/net/phy/nxp-c45-tja11xx.c