diff options
| author | David S. Miller <davem@davemloft.net> | 2015-04-03 15:08:20 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-04-03 15:08:20 -0400 |
| commit | b98d8075e65c9cb688e73b941d873986e7bbf7ae (patch) | |
| tree | 11065a9cf7570f455b747eab454dfc9b48916175 /drivers/net/phy/fixed_phy.c | |
| parent | bcad57182425426dd4aa14deb27f97acb329f3cd (diff) | |
| parent | 898b2970e2c91e4543b579998922822894325866 (diff) | |
Merge branch 'mvneta-sgmii'
Stas Sergeev says:
====================
mvneta: SGMII-based in-band link state signaling
Currently the fixed-link DT binding is pre-configured and
cannot be changed in run-time. This means the cable unplug
events are not being detected, and the link parameters can't
be negotiated.
The following patches are needed when mvneta is used
in fixed-link mode (without MDIO).
They add an API to fixed_phy that allows to update
status, and use that API in the mvneta driver when parsing
the SGMII in-band status.
There is also another implementation that doesn't add any API
and does everything in mvneta driver locally:
https://lkml.org/lkml/2015/3/31/327
I'll let people decide which approach is better.
No strong opinion on my side.
====================
Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/fixed_phy.c')
| -rw-r--r-- | drivers/net/phy/fixed_phy.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/phy/fixed_phy.c b/drivers/net/phy/fixed_phy.c index a08a3c78ba97..1960b46add65 100644 --- a/drivers/net/phy/fixed_phy.c +++ b/drivers/net/phy/fixed_phy.c @@ -183,6 +183,35 @@ int fixed_phy_set_link_update(struct phy_device *phydev, } EXPORT_SYMBOL_GPL(fixed_phy_set_link_update); +int fixed_phy_update_state(struct phy_device *phydev, + const struct fixed_phy_status *status, + const struct fixed_phy_status *changed) +{ + struct fixed_mdio_bus *fmb = &platform_fmb; + struct fixed_phy *fp; + + if (!phydev || !phydev->bus) + return -EINVAL; + + list_for_each_entry(fp, &fmb->phys, node) { + if (fp->addr == phydev->addr) { +#define _UPD(x) if (changed->x) \ + fp->status.x = status->x + _UPD(link); + _UPD(speed); + _UPD(duplex); + _UPD(pause); + _UPD(asym_pause); +#undef _UPD + fixed_phy_update_regs(fp); + return 0; + } + } + + return -ENOENT; +} +EXPORT_SYMBOL(fixed_phy_update_state); + int fixed_phy_add(unsigned int irq, int phy_addr, struct fixed_phy_status *status) { |