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From: Andrew Lunn <andrew@lunn.ch>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	Pramod Kumar <pramod.kumar@broadcom.com>,
	Rob Herring <robh+dt@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Chen-Yu Tsai <wens@csie.org>, Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, Pawel Moll <pawel.moll@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	netdev@vger.kernel.org, Punit Agrawal <punit.agrawal@arm.com>,
	linux-kernel@vger.kernel.org,
	BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>,
	linux-arm-kernel@lists.infradead.org,
	Anup Patel <anup.patel@broadcom.com>,
	Kishon Vijay Abraham I <kishon@ti.com>
Subject: Re: [PATCH 1/6] bus: Add shared MDIO bus framework
Date: Tue, 26 Apr 2016 20:23:35 +0200	[thread overview]
Message-ID: <20160426182335.GE30107@lunn.ch> (raw)
In-Reply-To: <5167289.0a4LBoWhyX@wuerfel>

> A more complex problem would be having a PHY driver for a device
> that can be either an ethernet phy or some other phy.

I doubt that ever happens. You can have up to 32 different devices on
an MDIO bus. Since an Ethernet PHY and a "some other sort of PHY" are
completely different things, why would a hardware engineer place them
on the same address? It is like saying your ATA controller and VGA
controller share the same slot on the PCI bus...

   Andrew

  reply	other threads:[~2016-04-26 18:23 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-21  9:18 [PATCH 0/6] Add Shared MDIO framework for iProc based SoCs Pramod Kumar
2016-04-21  9:18 ` [PATCH 1/6] bus: Add shared MDIO bus framework Pramod Kumar
2016-04-24 18:18   ` David Miller
2016-04-25  4:09     ` Pramod Kumar
2016-04-25 20:56   ` Andrew Lunn
2016-04-26  8:33     ` Pramod Kumar
2016-04-26 12:13       ` Andrew Lunn
2016-04-26 16:26         ` David Miller
2016-04-26 17:23         ` Florian Fainelli
2016-04-26 17:45           ` Andrew Lunn
2016-04-26 17:53           ` Arnd Bergmann
2016-04-26 18:23             ` Andrew Lunn [this message]
2016-04-26 19:24               ` Arnd Bergmann
2016-04-26 19:41                 ` Andrew Lunn
2016-04-27  4:46                   ` Anup Patel
2016-04-27  9:28                     ` Arnd Bergmann
2016-04-21  9:18 ` [PATCH 2/6] Documentation: DT binding doc for iProc Shared MDIO Controller Pramod Kumar
2016-04-22 20:10   ` Rob Herring
2016-04-25  4:27     ` Pramod Kumar
2016-04-25 15:33   ` Andrew Lunn
2016-04-21  9:18 ` [PATCH 3/6] bus: Add platform driver for iProc shared " Pramod Kumar
2016-04-21  9:18 ` [PATCH 4/6] dt: Add Shared MDIO Controller node for NS2 Pramod Kumar
2016-04-21  9:18 ` [PATCH 5/6] Documentation: Binding doc for ethernet master in NS2 Pramod Kumar
2016-04-22 20:13   ` Rob Herring
2016-04-25  4:43     ` Pramod Kumar
2016-04-21  9:18 ` [PATCH 6/6] net:phy: Add Ethernet Master for iProc Shared MDIO Controller Pramod Kumar
2016-04-25 15:20 ` [PATCH 0/6] Add Shared MDIO framework for iProc based SoCs Andrew Lunn

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