[PATCH v4 01/11] Documentation: samsung-phy: Add dt bindings for UFS

[Alim Akhtar <alim.akhtar@samsung.com>]

Adds exynos UFS PHY device tree bindings information.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
---
 .../devicetree/bindings/phy/samsung-phy.txt        |   22 ++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index 60c6f2a633e0..c92ce537ceec 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -174,3 +174,25 @@ Example:
 		usbdrdphy0 = &usb3_phy0;
 		usbdrdphy1 = &usb3_phy1;
 	};
+
+Samsung Exynos7 soc series UFS PHY Controller
+---------------------------------------------
+
+UFS PHY nodes are defined to describe on-chip UFS Physical layer controllers.
+Each UFS PHY controller should have its own node.
+
+Required properties:
+- compatible        : compatible should be set to "samsung,exynos7-ufs-phy"
+- reg : offset and length of the UFS PHY register set
+- reg-names : reg name(s) must be 'phy-pma'
+- #phy-cells : must be zero
+- samsung,pmu-syscon : a phandle to the PMU system controller, no arguments
+
+Example:
+	ufs_phy: ufs-phy@0x15571800 {
+		compatible = "samsung,exynos7-ufs-phy";
+		reg = <0x15571800 0x240>;
+		reg-names = "phy-pma";
+		samsung,pmu-syscon = <&pmu_system_controller>;
+		#phy-cells = <0>;
+	};
-- 
1.7.10.4