netdev - [PATCH v4 3/7] dt-bindings: net: Document Intel pch

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Message-ID: <20170605173136.10795-4-paul.burton@imgtec.com>
Date:   Mon, 5 Jun 2017 10:31:32 -0700
From:   Paul Burton <paul.burton@...tec.com>
To:     <netdev@...r.kernel.org>
CC:     "David S . Miller" <davem@...emloft.net>,
        <linux-mips@...ux-mips.org>, Eric Dumazet <edumazet@...gle.com>,
        Jarod Wilson <jarod@...hat.com>,
        Tobias Klauser <tklauser@...tanz.ch>,
        Paul Burton <paul.burton@...tec.com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>, <devicetree@...r.kernel.org>
Subject: [PATCH v4 3/7] dt-bindings: net: Document Intel pch_gbe binding

Introduce documentation for a device tree binding for the Intel Platform
Controller Hub (PCH) GigaBit Ethernet (GBE) device. Although this is a
PCIe device & thus largely auto-detectable, this binding will be used to
provide the driver with the PHY reset GPIO.

Signed-off-by: Paul Burton <paul.burton@...tec.com>
Cc: David S. Miller <davem@...emloft.net>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: Jarod Wilson <jarod@...hat.com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Tobias Klauser <tklauser@...tanz.ch>
Cc: devicetree@...r.kernel.org
Cc: linux-mips@...ux-mips.org
Cc: netdev@...r.kernel.org

---

Changes in v4: None

Changes in v3:
- New patch.

Changes in v2: None

 Documentation/devicetree/bindings/net/pch_gbe.txt | 25 +++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/pch_gbe.txt

diff --git a/Documentation/devicetree/bindings/net/pch_gbe.txt b/Documentation/devicetree/bindings/net/pch_gbe.txt
new file mode 100644
index 000000000000..5de479c26b04
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/pch_gbe.txt
@@ -0,0 +1,25 @@
+Intel Platform Controller Hub (PCH) GigaBit Ethernet (GBE)
+
+Required properties:
+- compatible:		Should be the PCI vendor & device ID, eg. "pci8086,8802".
+- reg:			Should be a PCI device number as specified by the PCI bus
+			binding to IEEE Std 1275-1994.
+- phy-reset-gpios:	Should be a GPIO list containing a single GPIO that
+			resets the attached PHY when active.
+
+Example:
+
+	eg20t_mac@2,0,1 {
+		compatible = "pci8086,8802";
+		reg = <0x00020100 0 0 0 0>;
+		phy-reset-gpios = <&eg20t_gpio 6
+				   GPIO_ACTIVE_LOW>;
+	};
+
+	eg20t_gpio: eg20t_gpio@2,0,2 {
+		compatible = "pci8086,8803";
+		reg = <0x00020200 0 0 0 0>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
-- 
2.13.0