diff --git a/Documentation/devicetree/bindings/sound/rockchip-audio.txt b/Documentation/devicetree/bindings/sound/rockchip-audio.txt
deleted file mode 100644
index 55025950dfef..000000000000
--- a/Documentation/devicetree/bindings/sound/rockchip-audio.txt
+++ /dev/null
@@ -1,133 +0,0 @@
-* Rockchip Audio controller
-
-Required SoC Specific Properties:
-
-- compatible : "rk3036-audio"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- clocks: must include clock specifiers corresponding to entries in the
-  clock-names property.
-- clocks-names: list of clock names sorted in the same order as the clocks
-  property. Must contain "rockchip-i2s" and "rk3036-codec".
-- interrupts: interrupt number to the cpu.
-- dmas: list of DMA controller phandle and DMA request line ordered pairs.
-- dma-names: identifier string for each DMA request line in the dmas property.
-  These strings correspond 1:1 with the ordered pairs in dmas.
-- pinctrl-names: must contain a "default" entry.
-- pinctrl-0: pin control group to be used for this controller.
-- pinctrl-1: pin control group to be used for gpio.
-
-Example:
-
-rockchip-audio {
-	compatible = "rk3036-audio";
-	dais {
-		dai0 {
-			audio-codec = <&codec>;
-			audio-controller = <&i2s>;
-			format = "i2s";
-			//continuous-clock;
-			//bitclock-inversion;
-			//frame-inversion;
-			//bitclock-master;
-			//frame-master;
-		};
-	};
-};
-
-
-- compatible : "audio-rk312x"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- clocks: must include clock specifiers corresponding to entries in the
-  clock-names property.
-- clocks-names: list of clock names sorted in the same order as the clocks
-  property. Must contain "rockchip-i2s" and "rk3036-codec".
-- interrupts: interrupt number to the cpu.
-- dmas: list of DMA controller phandle and DMA request line ordered pairs.
-- dma-names: identifier string for each DMA request line in the dmas property.
-  These strings correspond 1:1 with the ordered pairs in dmas.
-- pinctrl-names: must contain a "default" entry.
-- pinctrl-0: pin control group to be used for this controller.
-- pinctrl-1: pin control group to be used for gpio.
-
-Example:
-
-rockchip-audio {
-        compatible = "audio-rk312x";
-        dais {
-                dai0 {
-                        audio-codec = <&codec>;
-                        audio-controller = <&i2s1>;
-                        format = "i2s";
-                        //continuous-clock;
-                        //bitclock-inversion;
-                        //frame-inversion;
-                        //bitclock-master;
-                        //frame-master;
-                };
-        };
-};
-
-
-- compatible : "rk312x-spdif"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- clocks: must include clock specifiers corresponding to entries in the
-  clock-names property.
-- clocks-names: list of clock names sorted in the same order as the clocks
-  property. Must contain "rockchip-i2s" and "rk3036-codec".
-- interrupts: interrupt number to the cpu.
-- dmas: list of DMA controller phandle and DMA request line ordered pairs.
-- dma-names: identifier string for each DMA request line in the dmas property.
-  These strings correspond 1:1 with the ordered pairs in dmas.
-- pinctrl-names: must contain a "default" entry.
-- pinctrl-0: pin control group to be used for this controller.
-- pinctrl-1: pin control group to be used for gpio.
-
-Example:
-
-spdif: spdif@10204000 {
-	compatible = "rk312x-spdif";
-	reg = <0x10204000 0x1000>;
-	clocks = <&clk_spdif>, <&clk_gates10 9>;
-	clock-names = "spdif_8ch_mclk", "spdif_hclk";
-	interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
-	dmas = <&pdma 13>;
-	//#dma-cells = <1>;
-	dma-names = "tx";
-	pinctrl-names = "default";
-	pinctrl-0 = <&spdif_tx>;
-};
-
-
-
-- compatible : "rk312x-codec"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- clocks: must include clock specifiers corresponding to entries in the
-  clock-names property.
-- clocks-names: list of clock names sorted in the same order as the clocks
-  property. Must contain "rockchip-i2s" and "rk3036-codec".
-- interrupts: interrupt number to the cpu.
-- dmas: list of DMA controller phandle and DMA request line ordered pairs.
-- dma-names: identifier string for each DMA request line in the dmas property.
-  These strings correspond 1:1 with the ordered pairs in dmas.
-- pinctrl-names: must contain a "default" entry.
-- pinctrl-0: pin control group to be used for this controller.
-- pinctrl-1: pin control group to be used for gpio.
-
-Example:
-
-codec: codec@20030000 {
-	compatible = "rk312x-codec";
-	reg = <0x20030000 0x1000>;
-	spk_ctl_io = <&gpio1 GPIO_A3 0>;
-	//pinctrl-names = "default";
-	//pinctrl-0 = <&i2s_gpio>;
-
-	boot_depop = <1>;
-	pa_enable_time = <1000>;
-	clocks = <&clk_gates5 14>;
-	clock-names = "g_pclk_acodec";
-};