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Date:   Tue, 26 May 2020 18:22:52 +0200
From:   Antoine Tenart <>
Cc:     Antoine Tenart <>,,,,,
Subject: [PATCH net-next 0/4] net: phy: mscc-miim: reduce waiting time between MDIO transactions


This series aims at reducing the waiting time between MDIO transactions
when using the MSCC MIIM MDIO controller.

I'm not sure we need patch 4/4 and we could reasonably drop it from the
series. I'm including the patch as it could help to ensure the system
is functional with a non optimal configuration.

We needed to improve the driver's performances as when using a PHY
requiring lots of registers accesses (such as the VSC85xx family),
delays would add up and ended up to be quite large which would cause
issues such as: a slow initialization of the PHY, and issues when using
timestamping operations (this feature will be sent quite soon to the
mailing lists).


Antoine Tenart (4):
  net: phy: mscc-miim: use more reasonable delays
  net: phy: mscc-miim: remove redundant timeout check
  net: phy: mscc-miim: improve waiting logic
  net: phy: mscc-miim: read poll when high resolution timers are

 drivers/net/phy/Kconfig          |  3 ++-
 drivers/net/phy/mdio-mscc-miim.c | 33 +++++++++++++++++++++++++-------
 2 files changed, 28 insertions(+), 8 deletions(-)


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