diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-17 08:33:41 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-17 08:33:41 +0200 |
commit | b5dd424181f33c2978562c64b286fc22cf5ef4bf (patch) | |
tree | e2e3aa65bfb6e6a83de8ca4a92f0483fe1224833 /drivers/net/phy | |
parent | c6c631d2b72b9390587cd1ee5b7905f8ea5bb1ea (diff) | |
parent | 6ba59ff4227927d3a8530fc2973b80e94b54d58f (diff) |
Merge tag 'v6.10-rc4' into driver-core-next
We need the driver core and sysfs fixes in here to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/phy')
-rw-r--r-- | drivers/net/phy/micrel.c | 104 | ||||
-rw-r--r-- | drivers/net/phy/sfp.c | 3 |
2 files changed, 98 insertions, 9 deletions
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 2b8f8b7f1517..5aada7cf3da7 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -866,6 +866,17 @@ static int ksz8061_config_init(struct phy_device *phydev) { int ret; + /* Chip can be powered down by the bootstrap code. */ + ret = phy_read(phydev, MII_BMCR); + if (ret < 0) + return ret; + if (ret & BMCR_PDOWN) { + ret = phy_write(phydev, MII_BMCR, ret & ~BMCR_PDOWN); + if (ret < 0) + return ret; + usleep_range(1000, 2000); + } + ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_DEVID1, 0xB61A); if (ret) return ret; @@ -1939,7 +1950,7 @@ static const struct ksz9477_errata_write ksz9477_errata_writes[] = { {0x1c, 0x20, 0xeeee}, }; -static int ksz9477_config_init(struct phy_device *phydev) +static int ksz9477_phy_errata(struct phy_device *phydev) { int err; int i; @@ -1967,16 +1978,30 @@ static int ksz9477_config_init(struct phy_device *phydev) return err; } + err = genphy_restart_aneg(phydev); + if (err) + return err; + + return err; +} + +static int ksz9477_config_init(struct phy_device *phydev) +{ + int err; + + /* Only KSZ9897 family of switches needs this fix. */ + if ((phydev->phy_id & 0xf) == 1) { + err = ksz9477_phy_errata(phydev); + if (err) + return err; + } + /* According to KSZ9477 Errata DS80000754C (Module 4) all EEE modes * in this switch shall be regarded as broken. */ if (phydev->dev_flags & MICREL_NO_EEE) phydev->eee_broken_modes = -1; - err = genphy_restart_aneg(phydev); - if (err) - return err; - return kszphy_config_init(phydev); } @@ -2085,6 +2110,71 @@ static int kszphy_resume(struct phy_device *phydev) return 0; } +static int ksz9477_resume(struct phy_device *phydev) +{ + int ret; + + /* No need to initialize registers if not powered down. */ + ret = phy_read(phydev, MII_BMCR); + if (ret < 0) + return ret; + if (!(ret & BMCR_PDOWN)) + return 0; + + genphy_resume(phydev); + + /* After switching from power-down to normal mode, an internal global + * reset is automatically generated. Wait a minimum of 1 ms before + * read/write access to the PHY registers. + */ + usleep_range(1000, 2000); + + /* Only KSZ9897 family of switches needs this fix. */ + if ((phydev->phy_id & 0xf) == 1) { + ret = ksz9477_phy_errata(phydev); + if (ret) + return ret; + } + + /* Enable PHY Interrupts */ + if (phy_interrupt_is_valid(phydev)) { + phydev->interrupts = PHY_INTERRUPT_ENABLED; + if (phydev->drv->config_intr) + phydev->drv->config_intr(phydev); + } + + return 0; +} + +static int ksz8061_resume(struct phy_device *phydev) +{ + int ret; + + /* This function can be called twice when the Ethernet device is on. */ + ret = phy_read(phydev, MII_BMCR); + if (ret < 0) + return ret; + if (!(ret & BMCR_PDOWN)) + return 0; + + genphy_resume(phydev); + usleep_range(1000, 2000); + + /* Re-program the value after chip is reset. */ + ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_DEVID1, 0xB61A); + if (ret) + return ret; + + /* Enable PHY Interrupts */ + if (phy_interrupt_is_valid(phydev)) { + phydev->interrupts = PHY_INTERRUPT_ENABLED; + if (phydev->drv->config_intr) + phydev->drv->config_intr(phydev); + } + + return 0; +} + static int kszphy_probe(struct phy_device *phydev) { const struct kszphy_type *type = phydev->drv->driver_data; @@ -5339,7 +5429,7 @@ static struct phy_driver ksphy_driver[] = { .config_intr = kszphy_config_intr, .handle_interrupt = kszphy_handle_interrupt, .suspend = kszphy_suspend, - .resume = kszphy_resume, + .resume = ksz8061_resume, }, { .phy_id = PHY_ID_KSZ9021, .phy_id_mask = 0x000ffffe, @@ -5493,7 +5583,7 @@ static struct phy_driver ksphy_driver[] = { .config_intr = kszphy_config_intr, .handle_interrupt = kszphy_handle_interrupt, .suspend = genphy_suspend, - .resume = genphy_resume, + .resume = ksz9477_resume, .get_features = ksz9477_get_features, } }; diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 3f9cbd797fd6..a5684ef5884b 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -2429,8 +2429,7 @@ static void sfp_sm_module(struct sfp *sfp, unsigned int event) /* Handle remove event globally, it resets this state machine */ if (event == SFP_E_REMOVE) { - if (sfp->sm_mod_state > SFP_MOD_PROBE) - sfp_sm_mod_remove(sfp); + sfp_sm_mod_remove(sfp); sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0); return; } |