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Date: Sat, 25 May 2019 03:04:47 +0200 From: Andrew Lunn <andrew@...n.ch> To: Ruslan Babayev <ruslan@...ayev.com> Cc: Russell King <linux@...linux.org.uk>, Florian Fainelli <f.fainelli@...il.com>, Heiner Kallweit <hkallweit1@...il.com>, xe-linux-external@...co.com, "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH net-next v2 2/2] net: phy: sfp: enable i2c-bus detection on ACPI based systems On Fri, May 24, 2019 at 05:53:02PM -0700, Ruslan Babayev wrote: > Lookup I2C adapter using the "i2c-bus" device property on ACPI based > systems similar to how it's done with DT. > > An example DSD describing an SFP on an ACPI based system: > > Device (SFP0) > { > Name (_HID, "PRP0001") > Name (_CRS, ResourceTemplate() > { > GpioIo(Exclusive, PullDefault, 0, 0, IoRestrictionNone, > "\\_SB.PCI0.RP01.GPIO", 0, ResourceConsumer) > { 0, 1, 2, 3, 4 } > }) > Name (_DSD, Package () > { > ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), > Package () { > Package () { "compatible", "sff,sfp" }, > Package () { "i2c-bus", \_SB.PCI0.RP01.I2C.MUX.CH0 }, > Package () { "maximum-power-milliwatt", 1000 }, > Package () { "tx-disable-gpios", Package () { ^SFP0, 0, 0, 1} }, > Package () { "reset-gpio", Package () { ^SFP0, 0, 1, 1} }, > Package () { "mod-def0-gpios", Package () { ^SFP0, 0, 2, 1} }, > Package () { "tx-fault-gpios", Package () { ^SFP0, 0, 3, 0} }, > Package () { "los-gpios", Package () { ^SFP0, 0, 4, 1} }, > }, > }) > } > > Device (PHY0) > { > Name (_HID, "PRP0001") > Name (_DSD, Package () > { > ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), > Package () { > Package () { "compatible", "ethernet-phy-ieee802.3-c45" }, > Package () { "sfp", \_SB.PCI0.RP01.SFP0 }, > Package () { "managed", "in-band-status" }, > Package () { "phy-mode", "sgmii" }, > }, > }) > } > > Signed-off-by: Ruslan Babayev <ruslan@...ayev.com> > Cc: xe-linux-external@...co.com Reviewed-by: Andrew Lunn <andrew@...n.ch> Andrew
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