From: Marcin Wojtas <mw@semihalf.com> To: Andrew Lunn <andrew@lunn.ch> Cc: "David Miller" <davem@davemloft.net>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev <netdev@vger.kernel.org>, "Russell King - ARM Linux" <linux@arm.linux.org.uk>, "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>, "Florian Fainelli" <f.fainelli@gmail.com>, "Antoine Ténart" <antoine.tenart@free-electrons.com>, "Thomas Petazzoni" <thomas.petazzoni@free-electrons.com>, "Gregory Clément" <gregory.clement@free-electrons.com>, "Ezequiel Garcia" <ezequiel.garcia@free-electrons.com>, nadavh@marvell.com, "Neta Zur Hershkovits" <neta@marvell.com>, "Ard Biesheuvel" <ard.biesheuvel@linaro.org>, "Grzegorz Jaszczyk" <jaz@semihalf.com>, "Tomasz Nowicki" <tn@semihalf.com> Subject: Re: [net-next: PATCH 0/8] Armada 7k/8k PP2 ACPI support Date: Wed, 20 Dec 2017 00:13:01 +0100 [thread overview] Message-ID: <CAPv3WKcYSQeUnNr20T_M3B-upg0Z=CnVS9fvd=v18Tbh4T7FWg@mail.gmail.com> (raw) In-Reply-To: <20171219204614.GA24156@lunn.ch> Hi Andrew, 2017-12-19 21:46 GMT+01:00 Andrew Lunn <andrew@lunn.ch>: >> Of course! v2 will not have such problem, I've been waiting however >> for the feedback about the ACPI representation. Anyway, I'm strongly >> leaning towards using _ADR/_CID objects in PHY's nodes for ACPI, so >> maybe I'll just issue the v2 in order to push the discussion a bit >> forward. > > Hi Marcin > > I know ~0 about ACPI. But what seems to be missing for me is > documentation. You are defining a ABI here, which all future MDIO > busses, PHYs, and to some extent Ethernet switches need to follow. So > i would expect this to be documented somewhere. As the code derives straight from of_mdio.c, there is absolutely no deviation from Documentation/devicetree/bindings/net/mdio.txt. > > How does documentation work in the ACPI world? > ACPI has its own specification, the newest one is 6.2 http://www.uefi.org/sites/default/files/resources/ACPI_6_2.pdf It is pretty likely, that if we establish a generic solution for the MDIO bus, a short section about it may probably require adding to above - for now I see none. Best regards, Marcin
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From: mw@semihalf.com (Marcin Wojtas) To: linux-arm-kernel@lists.infradead.org Subject: [net-next: PATCH 0/8] Armada 7k/8k PP2 ACPI support Date: Wed, 20 Dec 2017 00:13:01 +0100 [thread overview] Message-ID: <CAPv3WKcYSQeUnNr20T_M3B-upg0Z=CnVS9fvd=v18Tbh4T7FWg@mail.gmail.com> (raw) In-Reply-To: <20171219204614.GA24156@lunn.ch> Hi Andrew, 2017-12-19 21:46 GMT+01:00 Andrew Lunn <andrew@lunn.ch>: >> Of course! v2 will not have such problem, I've been waiting however >> for the feedback about the ACPI representation. Anyway, I'm strongly >> leaning towards using _ADR/_CID objects in PHY's nodes for ACPI, so >> maybe I'll just issue the v2 in order to push the discussion a bit >> forward. > > Hi Marcin > > I know ~0 about ACPI. But what seems to be missing for me is > documentation. You are defining a ABI here, which all future MDIO > busses, PHYs, and to some extent Ethernet switches need to follow. So > i would expect this to be documented somewhere. As the code derives straight from of_mdio.c, there is absolutely no deviation from Documentation/devicetree/bindings/net/mdio.txt. > > How does documentation work in the ACPI world? > ACPI has its own specification, the newest one is 6.2 http://www.uefi.org/sites/default/files/resources/ACPI_6_2.pdf It is pretty likely, that if we establish a generic solution for the MDIO bus, a short section about it may probably require adding to above - for now I see none. Best regards, Marcin
next prev parent reply other threads:[~2017-12-19 23:13 UTC|newest] Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-12-18 9:17 [net-next: PATCH 0/8] Armada 7k/8k PP2 ACPI support Marcin Wojtas 2017-12-18 9:17 ` Marcin Wojtas 2017-12-18 9:17 ` Marcin Wojtas 2017-12-18 9:17 ` [net-next: PATCH 1/8] device property: Introduce fwnode_get_mac_address() Marcin Wojtas 2017-12-18 9:17 ` Marcin Wojtas 2017-12-18 9:17 ` Marcin Wojtas 2017-12-18 9:17 ` [net-next: PATCH 2/8] device property: Introduce fwnode_get_phy_mode() Marcin Wojtas 2017-12-18 9:17 ` Marcin Wojtas 2017-12-18 9:17 ` [net-next: PATCH 3/8] mdio_bus: Introduce fwnode MDIO helpers Marcin Wojtas 2017-12-18 9:17 ` Marcin Wojtas 2017-12-18 9:17 ` Marcin Wojtas 2017-12-18 9:18 ` [net-next: PATCH 4/8] net: mvmdio: add ACPI support Marcin Wojtas 2017-12-18 9:18 ` Marcin Wojtas 2017-12-18 9:18 ` [net-next: PATCH 5/8] net: mvpp2: simplify maintaining enabled ports' list Marcin Wojtas 2017-12-18 9:18 ` Marcin Wojtas 2017-12-18 9:18 ` Marcin Wojtas 2017-12-18 9:18 ` [net-next: PATCH 6/8] net: mvpp2: use device_*/fwnode_* APIs instead of of_* Marcin Wojtas 2017-12-18 9:18 ` Marcin Wojtas 2017-12-18 9:18 ` [net-next: PATCH 7/8] net: mvpp2: handle PHY with its fwnode Marcin Wojtas 2017-12-18 9:18 ` Marcin Wojtas 2017-12-18 9:18 ` [net-next: PATCH 8/8] net: mvpp2: enable ACPI support in the driver Marcin Wojtas 2017-12-18 9:18 ` Marcin Wojtas 2017-12-18 9:40 ` [net-next: PATCH 0/8] Armada 7k/8k PP2 ACPI support Ard Biesheuvel 2017-12-18 9:40 ` Ard Biesheuvel 2017-12-18 15:49 ` Marcin Wojtas 2017-12-18 15:49 ` Marcin Wojtas 2017-12-18 15:49 ` Marcin Wojtas 2018-01-03 11:00 ` Graeme Gregory 2018-01-03 11:00 ` Graeme Gregory 2018-01-03 11:00 ` Graeme Gregory 2018-01-03 11:12 ` Marcin Wojtas 2018-01-03 11:12 ` Marcin Wojtas 2018-01-03 11:12 ` Marcin Wojtas 2018-01-03 12:47 ` Andrew Lunn 2018-01-03 12:47 ` Andrew Lunn 2018-01-03 12:47 ` Andrew Lunn 2018-01-03 13:13 ` Marcin Wojtas 2018-01-03 13:13 ` Marcin Wojtas 2018-01-03 13:13 ` Marcin Wojtas 2018-01-03 13:33 ` Andrew Lunn 2018-01-03 13:33 ` Andrew Lunn 2018-01-03 13:33 ` Andrew Lunn 2018-01-03 13:36 ` Marcin Wojtas 2018-01-03 13:36 ` Marcin Wojtas 2018-01-03 13:36 ` Marcin Wojtas 2018-01-04 16:09 ` Graeme Gregory 2018-01-04 16:09 ` Graeme Gregory 2018-01-04 16:09 ` Graeme Gregory 2018-01-04 16:20 ` Andrew Lunn 2018-01-04 16:20 ` Andrew Lunn 2018-01-04 16:20 ` Andrew Lunn 2018-01-08 14:45 ` Graeme Gregory 2018-01-08 14:45 ` Graeme Gregory 2018-01-08 14:45 ` Graeme Gregory 2018-01-08 14:53 ` Andrew Lunn 2018-01-08 14:53 ` Andrew Lunn 2018-01-08 14:53 ` Andrew Lunn 2018-01-08 15:14 ` Graeme Gregory 2018-01-08 15:14 ` Graeme Gregory 2018-01-08 15:14 ` Graeme Gregory 2018-01-08 15:42 ` Andrew Lunn 2018-01-08 15:42 ` Andrew Lunn 2018-01-08 15:42 ` Andrew Lunn 2018-01-08 17:17 ` Marcin Wojtas 2018-01-08 17:17 ` Marcin Wojtas 2018-01-08 17:17 ` Marcin Wojtas 2018-01-09 10:19 ` Graeme Gregory 2018-01-09 10:19 ` Graeme Gregory 2018-01-09 10:19 ` Graeme Gregory 2018-01-09 10:22 ` Marcin Wojtas 2018-01-09 10:22 ` Marcin Wojtas 2018-01-09 10:22 ` Marcin Wojtas 2018-01-09 13:00 ` Andrew Lunn 2018-01-09 13:00 ` Andrew Lunn 2018-01-09 13:00 ` Andrew Lunn 2018-01-18 12:31 ` Lorenzo Pieralisi 2018-01-18 12:31 ` Lorenzo Pieralisi 2018-01-18 12:31 ` Lorenzo Pieralisi 2018-01-18 12:31 ` Lorenzo Pieralisi 2018-01-18 13:00 ` Andrew Lunn 2018-01-18 13:00 ` Andrew Lunn 2018-01-18 13:00 ` Andrew Lunn 2018-01-18 13:00 ` Andrew Lunn 2018-01-19 18:07 ` Marcin Wojtas 2018-01-19 18:07 ` Marcin Wojtas 2018-01-19 18:07 ` Marcin Wojtas 2018-01-19 18:07 ` Marcin Wojtas 2018-01-19 18:53 ` Andrew Lunn 2018-01-19 18:53 ` Andrew Lunn 2018-01-19 18:53 ` Andrew Lunn 2018-01-19 18:53 ` Andrew Lunn 2018-01-20 19:52 ` Mika Westerberg 2018-01-20 19:52 ` Mika Westerberg 2018-01-20 19:52 ` Mika Westerberg 2018-01-21 1:08 ` Andrew Lunn 2018-01-21 1:08 ` Andrew Lunn 2018-01-21 1:08 ` Andrew Lunn 2018-01-21 1:08 ` Andrew Lunn 2018-01-21 10:27 ` Mika Westerberg 2018-01-21 10:27 ` Mika Westerberg 2018-01-21 10:27 ` Mika Westerberg 2018-01-21 10:27 ` Mika Westerberg 2018-01-21 16:13 ` Andrew Lunn 2018-01-21 16:13 ` Andrew Lunn 2018-01-21 16:13 ` Andrew Lunn 2018-01-21 16:13 ` Andrew Lunn 2018-01-21 17:13 ` Ard Biesheuvel 2018-01-21 17:13 ` Ard Biesheuvel 2018-01-21 17:13 ` Ard Biesheuvel 2018-01-21 17:13 ` Ard Biesheuvel 2018-01-21 18:55 ` Andrew Lunn 2018-01-21 18:55 ` Andrew Lunn 2018-01-21 18:55 ` Andrew Lunn 2018-01-21 18:55 ` Andrew Lunn 2017-12-18 14:09 ` Rafael J. Wysocki 2017-12-18 14:09 ` Rafael J. Wysocki 2017-12-19 18:48 ` David Miller 2017-12-19 18:48 ` David Miller 2017-12-19 18:59 ` Marcin Wojtas 2017-12-19 18:59 ` Marcin Wojtas 2017-12-19 20:46 ` Andrew Lunn 2017-12-19 20:46 ` Andrew Lunn 2017-12-19 23:13 ` Marcin Wojtas [this message] 2017-12-19 23:13 ` Marcin Wojtas 2017-12-21 19:21 ` Antoine Tenart 2017-12-21 19:21 ` Antoine Tenart
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