diff options
| author | Kevin Hao <haokexin@gmail.com> | 2018-03-20 09:44:52 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-04 14:52:43 +0100 |
| commit | 8b882dbba71768ff1d9a70e85488a9b5210f7b8f (patch) | |
| tree | 6dda07ce8d5d8232cd278d533dfcb7341a94a618 /include | |
| parent | 8d9d7f018464129de99ba5c63e00866a3a88750c (diff) | |
net: phy: Add general dummy stubs for MMD register access
[ Upstream commit 5df7af85ecd88e8b5f1f31d6456c3cf38a8bbdda ]
For some phy devices, even though they don't support the MMD extended
register access, it does have some side effect if we are trying to
read/write the MMD registers via indirect method. So introduce general
dummy stubs for MMD register access which these devices can use to avoid
such side effect.
Fixes: b6b5e8a69118 ("gianfar: Disable EEE autoneg by default")
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/phy.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index dca9e926b88f..efc04c2d92c9 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -879,6 +879,10 @@ static inline int genphy_no_soft_reset(struct phy_device *phydev) { return 0; } +int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad, + u16 regnum); +int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum, + u16 regnum, u16 val); /* Clause 45 PHY */ int genphy_c45_restart_aneg(struct phy_device *phydev); |