From: Andrew Lunn <andrew@lunn.ch>
To: "Adam Rudziński" <adam.rudzinski@arf.net.pl>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
netdev@vger.kernel.org, m.felsch@pengutronix.de,
hkallweit1@gmail.com, richard.leitner@skidata.com,
zhengdejin5@gmail.com, devicetree@vger.kernel.org,
kernel@pengutronix.de, kuba@kernel.org, robh+dt@kernel.org
Subject: Re: [PATCH net-next 0/3] net: phy: Support enabling clocks prior to bus probe
Date: Fri, 4 Sep 2020 15:45:58 +0200 [thread overview]
Message-ID: <20200904134558.GL3112546@lunn.ch> (raw)
In-Reply-To: <307b343b-2e8d-cb20-c22f-0e80acdf1dc9@arf.net.pl>
> Just a bunch of questions.
>
> Actually, why is it necessary to have a full MDIO bus scan already during
> probing peripherals?
That is the Linux bus model. It does not matter what sort of bus it
is, PCI, USB, MDIO, etc. When the bus driver is loaded, the bus is
enumerated and drivers probe for each device found on the bus.
> I'd say that it is not necessary to have a PHY getting found before it is
> needed to setup the complete interface.
It is like saying, we don't need to probe the keyboard until the first
time the "Press Enter" prompt is given?
Andrew
next prev parent reply other threads:[~2020-09-04 14:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 4:39 [PATCH net-next 0/3] net: phy: Support enabling clocks prior to bus probe Florian Fainelli
2020-09-03 4:39 ` [PATCH net-next 1/3] " Florian Fainelli
2020-09-03 20:39 ` Andrew Lunn
2020-09-03 21:25 ` Andrew Lunn
2020-09-03 21:28 ` Rob Herring
2020-09-03 21:42 ` Andrew Lunn
2020-09-03 21:50 ` Florian Fainelli
2020-09-03 21:43 ` Florian Fainelli
2020-09-03 4:39 ` [PATCH net-next 2/3] net: phy: mdio-bcm-unimac: Enable GPHY resources during bus reset Florian Fainelli
2020-09-03 4:39 ` [PATCH net-next 3/3] net: phy: bcm7xxx: request and manage GPHY clock Florian Fainelli
2020-09-04 6:15 ` Marco Felsch
2020-09-04 15:37 ` Florian Fainelli
2020-09-07 7:34 ` Marco Felsch
2020-09-07 19:07 ` Marco Felsch
2020-09-04 6:18 ` Marco Felsch
2020-09-04 15:38 ` Florian Fainelli
2020-09-07 7:37 ` Marco Felsch
2020-09-04 4:04 ` [PATCH net-next 0/3] net: phy: Support enabling clocks prior to bus probe Florian Fainelli
2020-09-04 6:19 ` Adam Rudziński
2020-09-04 13:45 ` Andrew Lunn [this message]
2020-09-04 14:00 ` Adam Rudziński
2020-09-04 14:23 ` Andrew Lunn
2020-09-04 17:21 ` Adam Rudziński
2020-09-04 13:58 ` Andrew Lunn
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