netdev - [RFC net-next 0/2] net: phy: Support enabling clocks prior to bus probe

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Message-Id: <20200902213347.3177881-1-f.fainelli@gmail.com>
Date:   Wed,  2 Sep 2020 14:33:45 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>, andrew@...n.ch,
        adam.rudzinski@....net.pl, m.felsch@...gutronix.de,
        hkallweit1@...il.com, richard.leitner@...data.com,
        zhengdejin5@...il.com, devicetree@...r.kernel.org,
        kernel@...gutronix.de, kuba@...nel.org, robh+dt@...nel.org
Subject: [RFC net-next 0/2] net: phy: Support enabling clocks prior to bus probe

Hi all,

This patch series takes care of enabling the Ethernet PHY clocks in
DT-based systems (we have no way to do it for ACPI, and ACPI would
likely keep all of this hardware enabled anyway).

Please test on your respective platforms, mine still seems to have
a race condition that I am tracking down as it looks like we are not
waiting long enough post clock enable.

The check on the clock reference count is necessary to avoid an
artificial bump of the clock reference count and to support the unbind
-> bind of the PHY driver. We could solve it in different ways.

Comments and test results welcome!

Florian Fainelli (2):
  net: phy: Support enabling clocks prior to bus probe
  net: phy: bcm7xxx: request and manage GPHY clock

 drivers/net/phy/bcm7xxx.c    | 29 ++++++++++++-
 drivers/net/phy/phy_device.c |  6 ++-
 drivers/of/of_mdio.c         | 84 ++++++++++++++++++++++++++++++++++++
 include/linux/of_mdio.h      |  7 +++
 include/linux/phy.h          | 12 ++++++
 5 files changed, 136 insertions(+), 2 deletions(-)

-- 
2.25.1