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| author | Takashi Iwai <tiwai@suse.de> | 2024-12-12 14:49:35 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-12-12 14:49:35 +0100 |
| commit | 7b26bc6582b13a52a42a4a9765e8f30d58a81198 (patch) | |
| tree | 80737d9bb4abf42b8e2061a5edacdfbe5ac9b7d6 /drivers/net/phy/microchip.c | |
| parent | b2e538a9827dd04ab5273bf4be8eb2edb84357b0 (diff) | |
| parent | 255cc582e6e16191a20d54bcdbca6c91d3e90c5e (diff) | |
| download | linux-7b26bc6582b13a52a42a4a9765e8f30d58a81198.tar.gz linux-7b26bc6582b13a52a42a4a9765e8f30d58a81198.tar.bz2 linux-7b26bc6582b13a52a42a4a9765e8f30d58a81198.zip | |
Merge tag 'asoc-fix-v6.12-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.13
A small pile of driver specific fixes, all quite small and not
particularly major.
Diffstat (limited to 'drivers/net/phy/microchip.c')
| -rw-r--r-- | drivers/net/phy/microchip.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/phy/microchip.c b/drivers/net/phy/microchip.c index d3273bc0da4a..691969a4910f 100644 --- a/drivers/net/phy/microchip.c +++ b/drivers/net/phy/microchip.c @@ -351,6 +351,22 @@ static int lan88xx_config_aneg(struct phy_device *phydev) static void lan88xx_link_change_notify(struct phy_device *phydev) { int temp; + int ret; + + /* Reset PHY to ensure MII_LPA provides up-to-date information. This + * issue is reproducible only after parallel detection, as described + * in IEEE 802.3-2022, Section 28.2.3.1 ("Parallel detection function"), + * where the link partner does not support auto-negotiation. + */ + if (phydev->state == PHY_NOLINK) { + ret = phy_init_hw(phydev); + if (ret < 0) + goto link_change_notify_failed; + + ret = _phy_start_aneg(phydev); + if (ret < 0) + goto link_change_notify_failed; + } /* At forced 100 F/H mode, chip may fail to set mode correctly * when cable is switched between long(~50+m) and short one. @@ -377,6 +393,11 @@ static void lan88xx_link_change_notify(struct phy_device *phydev) temp |= LAN88XX_INT_MASK_MDINTPIN_EN_; phy_write(phydev, LAN88XX_INT_MASK, temp); } + + return; + +link_change_notify_failed: + phydev_err(phydev, "Link change process failed %pe\n", ERR_PTR(ret)); } /** |