Thread (49 messages) 49 messages, 7 authors, 2020-06-24

Re: [PATCH 13/15] net: phy: mdio: add support for PHY supply regulator

From: Bartosz Golaszewski <hidden>
Date: 2020-06-23 09:30:36
Also in: linux-devicetree, lkml

pon., 22 cze 2020 o 15:25 Russell King - ARM Linux admin
[off-list ref] napisał(a):
On Mon, Jun 22, 2020 at 11:37:42AM +0200, Bartosz Golaszewski wrote:
quoted
From: Bartosz Golaszewski <redacted>

Currently many MAC drivers control the regulator supplying the PHY but
this is conceptually wrong. The regulator should be defined as a property
of the PHY node on the MDIO bus and controlled by the MDIO sub-system.

Add support for an optional PHY regulator which will be enabled before
optional deasserting of the reset signal.
I wonder if this is the right place for this - MDIO devices do not have
to be PHYs - they can be switches, and using "phy-supply" for a switch
doesn't seem logical.

However, I can see the utility of having having a supply provided for
all mdio devices, so it seems to me to be a naming issue.  Andrew?
I followed the example of the phy reset retrieved in
mdiobus_register_reset(). I'm happy to change it to some other name.

Bart
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