linux-kernel - [PATCH v4 1/2] dt-bindings: Add Cygnus PCIe PHY binding doc

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Message-ID: <1442621772-10770-2-git-send-email-rjui@broadcom.com>
Date:	Fri, 18 Sep 2015 17:16:11 -0700
From:	Ray Jui <rjui@...adcom.com>
To:	Kishon Vijay Abraham I <kishon@...com>
CC:	Arnd Bergmann <arnd@...db.de>, <linux-kernel@...r.kernel.org>,
	"JD (Jiandong) Zheng" <jdzheng@...adcom.com>,
	Arun Parameswaran <arunp@...adcom.com>,
	<bcm-kernel-feedback-list@...adcom.com>,
	Ray Jui <rjui@...adcom.com>
Subject: [PATCH v4 1/2] dt-bindings: Add Cygnus PCIe PHY binding doc

Add DT binding document for Broadcom Cygnus PCIe PHYs

Signed-off-by: Ray Jui <rjui@...adcom.com>
Reviewed-by: Arun Parameswaran <aparames@...adcom.com>
Reviewed-by: JD (Jiandong) Zheng <jdzheng@...adcom.com>
Reviewed-by: Scott Branden <sbranden@...adcom.com>
---
 .../bindings/phy/brcm,cygnus-pcie-phy.txt          | 47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt

diff --git a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt
new file mode 100644
index 0000000..761c4bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt
@@ -0,0 +1,47 @@
+Broadcom Cygnus PCIe PHY
+
+Required properties:
+- compatible: must be "brcm,cygnus-pcie-phy"
+- reg: base address and length of the PCIe PHY block
+- #address-cells: must be 1
+- #size-cells: must be 0
+
+Each PCIe PHY should be represented by a child node
+
+Required properties For the child node:
+- reg: the PHY ID
+0 - PCIe RC 0
+1 - PCIe RC 1
+- #phy-cells: must be 0
+
+Example:
+	pcie_phy: phy@...1d0a0 {
+		compatible = "brcm,cygnus-pcie-phy";
+		reg = <0x0301d0a0 0x14>;
+
+		pcie0_phy: phy@0 {
+			reg = <0>;
+			#phy-cells = <0>;
+		};
+
+		pcie1_phy: phy@1 {
+			reg = <1>;
+			#phy-cells = <0>;
+		};
+	};
+
+	/* users of the PCIe phy */
+
+	pcie0: pcie@...12000 {
+		...
+		...
+		phys = <&pcie0_phy>;
+		phy-names = "pcie-phy";
+	};
+
+	pcie1: pcie@...13000 {
+		...
+		...
+		phys = <pcie1_phy>;
+		phy-names = "pcie-phy";
+	};
-- 
1.9.1

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