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diff --git a/Documentation/devicetree/bindings/clock/st/st,quadfs.txt b/Documentation/devicetree/bindings/clock/st/st,quadfs.txt
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+Binding for a type of quad channel digital frequency synthesizer found on
+certain STMicroelectronics consumer electronics SoC devices.
+
+This version contains a programmable PLL which can generate up to 216, 432
+or 660MHz (from a 30MHz oscillator input) as the input to the digital
+synthesizers.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : shall be:
+  "st,quadfs"
+  "st,quadfs-d0"
+  "st,quadfs-d2"
+  "st,quadfs-d3"
+  "st,quadfs-pll"
+
+
+- #clock-cells : from common clock binding; shall be set to 1.
+
+- reg : A Base address and length of the register set.
+
+- clocks : from common clock binding
+
+- clock-output-names : From common clock binding. The block has 4
+                       clock outputs but not all of them in a specific instance
+                       have to be used in the SoC. If a clock name is left as
+                       an empty string then no clock will be created for the
+                       output associated with that string index. If fewer than
+                       4 strings are provided then no clocks will be created
+                       for the remaining outputs.
+
+Example:
+
+	clk_s_c0_quadfs: clk-s-c0-quadfs@9103000 {
+		#clock-cells = <1>;
+		compatible = "st,quadfs-pll";
+		reg = <0x9103000 0x1000>;
+
+		clocks = <&clk_sysin>;
+
+		clock-output-names = "clk-s-c0-fs0-ch0",
+				     "clk-s-c0-fs0-ch1",
+				     "clk-s-c0-fs0-ch2",
+				     "clk-s-c0-fs0-ch3";
+	};