linux-kernel - [RFC PATCH 2/6] Documetation: samsung-phy: add the exynos-pcie-phy binding

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Date:   Mon, 26 Dec 2016 14:20:25 +0900
From:   Jaehoon Chung <jh80.chung@...sung.com>
To:     linux-pci@...r.kernel.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, bhelgaas@...gle.com,
        robh+dt@...nel.org, mark.rutland@....com, kgene@...nel.org,
        krzk@...nel.org, javier@....samsung.com, kishon@...com,
        will.deacon@....com, catalin.marinas@....com, cpgs@...sung.com,
        Jaehoon Chung <jh80.chung@...sung.com>
Subject: [RFC PATCH 2/6] Documetation: samsung-phy: add the exynos-pcie-phy
 binding

Adds the exynos-pcie-phy binding for Exynos PCIe PHY.
This is for using generic PHY framework.

Signed-off-by: Jaehoon Chung <jh80.chung@...sung.com>
---
 .../devicetree/bindings/phy/samsung-phy.txt         | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index 9872ba8..eb1085e 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -191,3 +191,24 @@ Example:
 		usbdrdphy0 = &usb3_phy0;
 		usbdrdphy1 = &usb3_phy1;
 	};
+
+Samsung Exynos SoC series PCIe PHY controller
+--------------------------------------------------
+Required properties:
+- compatible : Should be set to "samsung,exynos5433-pcie-phy"
+- #phy-cells : must be zero
+- reg : a list of registers usd by phy driver
+
+Optional properites:
+-samsung,pmureg-phandle	- handle to syscon used to control PMU registers
+-samsung,fsys-sysreg	- handle to syscon used to control the system registers
+
+Example:
+	pcie_phy: pcie-phy@...80000 {
+		#phy-cells = <0>;
+		compatible = "samsung,exynos5433-pcie-phy";
+		reg = <0x15680000 0x1000>;
+		samsung,pmureg-phandle = <&pmu_system_controller>;
+		samsung,fsys-sysreg = <&syscon_fsys>;
+		status = "okay";
+	};
-- 
2.10.2