179 lines
		
	
	
		
			6.4 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			179 lines
		
	
	
		
			6.4 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
Device-Tree bindings for the NXP TDA1997x HDMI receiver
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The TDA19971/73 are HDMI video receivers.
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The TDA19971 Video port output pins can be used as follows:
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 - RGB 8bit per color (24 bits total): R[11:4] B[11:4] G[11:4]
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 - YUV444 8bit per color (24 bits total): Y[11:4] Cr[11:4] Cb[11:4]
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 - YUV422 semi-planar 8bit per component (16 bits total): Y[11:4] CbCr[11:4]
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 - YUV422 semi-planar 10bit per component (20 bits total): Y[11:2] CbCr[11:2]
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 - YUV422 semi-planar 12bit per component (24 bits total): - Y[11:0] CbCr[11:0]
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 - YUV422 BT656 8bit per component (8 bits total): YCbCr[11:4] (2-cycles)
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 - YUV422 BT656 10bit per component (10 bits total): YCbCr[11:2] (2-cycles)
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 - YUV422 BT656 12bit per component (12 bits total): YCbCr[11:0] (2-cycles)
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The TDA19973 Video port output pins can be used as follows:
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 - RGB 12bit per color (36 bits total): R[11:0] B[11:0] G[11:0]
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 - YUV444 12bit per color (36 bits total): Y[11:0] Cb[11:0] Cr[11:0]
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 - YUV422 semi-planar 12bit per component (24 bits total): Y[11:0] CbCr[11:0]
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 - YUV422 BT656 12bit per component (12 bits total): YCbCr[11:0] (2-cycles)
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The Video port output pins are mapped via 4-bit 'pin groups' allowing
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for a variety of connection possibilities including swapping pin order within
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pin groups. The video_portcfg device-tree property consists of register mapping
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pairs which map a chip-specific VP output register to a 4-bit pin group. If
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the pin group needs to be bit-swapped you can use the *_S pin-group defines.
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Required Properties:
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 - compatible          :
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  - "nxp,tda19971" for the TDA19971
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  - "nxp,tda19973" for the TDA19973
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 - reg                 : I2C slave address
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 - interrupts          : The interrupt number
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 - DOVDD-supply        : Digital I/O supply
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 - DVDD-supply         : Digital Core supply
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 - AVDD-supply         : Analog supply
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 - nxp,vidout-portcfg  : array of pairs mapping VP output pins to pin groups.
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Optional Properties:
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 - nxp,audout-format   : DAI bus format: "i2s" or "spdif".
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 - nxp,audout-width    : width of audio output data bus (1-4).
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 - nxp,audout-layout   : data layout (0=AP0 used, 1=AP0/AP1/AP2/AP3 used).
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 - nxp,audout-mclk-fs  : Multiplication factor between stream rate and codec
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                         mclk.
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The port node shall contain one endpoint child node for its digital
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output video port, in accordance with the video interface bindings defined in
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Documentation/devicetree/bindings/media/video-interfaces.txt.
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Optional Endpoint Properties:
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  The following three properties are defined in video-interfaces.txt and
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  are valid for the output parallel bus endpoint:
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  - hsync-active: Horizontal synchronization polarity. Defaults to active high.
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  - vsync-active: Vertical synchronization polarity. Defaults to active high.
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  - data-active: Data polarity. Defaults to active high.
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Examples:
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 - VP[15:0] connected to IMX6 CSI_DATA[19:4] for 16bit YUV422
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   16bit I2S layout0 with a 128*fs clock (A_WS, AP0, A_CLK pins)
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	hdmi-receiver@48 {
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		compatible = "nxp,tda19971";
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		pinctrl-names = "default";
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		pinctrl-0 = <&pinctrl_tda1997x>;
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		reg = <0x48>;
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		interrupt-parent = <&gpio1>;
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		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
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		DOVDD-supply = <®_3p3v>;
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		AVDD-supply = <®_1p8v>;
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		DVDD-supply = <®_1p8v>;
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		/* audio */
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		#sound-dai-cells = <0>;
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		nxp,audout-format = "i2s";
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		nxp,audout-layout = <0>;
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		nxp,audout-width = <16>;
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		nxp,audout-mclk-fs = <128>;
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		/*
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		 * The 8bpp YUV422 semi-planar mode outputs CbCr[11:4]
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		 * and Y[11:4] across 16bits in the same pixclk cycle.
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		 */
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		nxp,vidout-portcfg =
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			/* Y[11:8]<->VP[15:12]<->CSI_DATA[19:16] */
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			< TDA1997X_VP24_V15_12 TDA1997X_G_Y_11_8 >,
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			/* Y[7:4]<->VP[11:08]<->CSI_DATA[15:12] */
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			< TDA1997X_VP24_V11_08 TDA1997X_G_Y_7_4 >,
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			/* CbCc[11:8]<->VP[07:04]<->CSI_DATA[11:8] */
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			< TDA1997X_VP24_V07_04 TDA1997X_R_CR_CBCR_11_8 >,
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			/* CbCr[7:4]<->VP[03:00]<->CSI_DATA[7:4] */
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			< TDA1997X_VP24_V03_00 TDA1997X_R_CR_CBCR_7_4 >;
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		port {
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			tda1997x_to_ipu1_csi0_mux: endpoint {
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				remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
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				bus-width = <16>;
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				hsync-active = <1>;
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				vsync-active = <1>;
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				data-active = <1>;
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			};
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		};
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	};
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 - VP[15:8] connected to IMX6 CSI_DATA[19:12] for 8bit BT656
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   16bit I2S layout0 with a 128*fs clock (A_WS, AP0, A_CLK pins)
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	hdmi-receiver@48 {
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		compatible = "nxp,tda19971";
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		pinctrl-names = "default";
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		pinctrl-0 = <&pinctrl_tda1997x>;
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		reg = <0x48>;
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		interrupt-parent = <&gpio1>;
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		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
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		DOVDD-supply = <®_3p3v>;
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		AVDD-supply = <®_1p8v>;
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		DVDD-supply = <®_1p8v>;
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		/* audio */
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		#sound-dai-cells = <0>;
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		nxp,audout-format = "i2s";
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		nxp,audout-layout = <0>;
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		nxp,audout-width = <16>;
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		nxp,audout-mclk-fs = <128>;
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		/*
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		 * The 8bpp YUV422 semi-planar mode outputs CbCr[11:4]
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		 * and Y[11:4] across 16bits in the same pixclk cycle.
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		 */
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		nxp,vidout-portcfg =
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			/* Y[11:8]<->VP[15:12]<->CSI_DATA[19:16] */
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			< TDA1997X_VP24_V15_12 TDA1997X_G_Y_11_8 >,
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			/* Y[7:4]<->VP[11:08]<->CSI_DATA[15:12] */
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			< TDA1997X_VP24_V11_08 TDA1997X_G_Y_7_4 >,
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			/* CbCc[11:8]<->VP[07:04]<->CSI_DATA[11:8] */
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			< TDA1997X_VP24_V07_04 TDA1997X_R_CR_CBCR_11_8 >,
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			/* CbCr[7:4]<->VP[03:00]<->CSI_DATA[7:4] */
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			< TDA1997X_VP24_V03_00 TDA1997X_R_CR_CBCR_7_4 >;
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		port {
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			tda1997x_to_ipu1_csi0_mux: endpoint {
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				remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
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				bus-width = <16>;
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				hsync-active = <1>;
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				vsync-active = <1>;
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				data-active = <1>;
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			};
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		};
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	};
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 - VP[15:8] connected to IMX6 CSI_DATA[19:12] for 8bit BT656
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   16bit I2S layout0 with a 128*fs clock (A_WS, AP0, A_CLK pins)
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	hdmi-receiver@48 {
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		compatible = "nxp,tda19971";
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		pinctrl-names = "default";
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		pinctrl-0 = <&pinctrl_tda1997x>;
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		reg = <0x48>;
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		interrupt-parent = <&gpio1>;
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		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
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		DOVDD-supply = <®_3p3v>;
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		AVDD-supply = <®_1p8v>;
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		DVDD-supply = <®_1p8v>;
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		/* audio */
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		#sound-dai-cells = <0>;
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		nxp,audout-format = "i2s";
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		nxp,audout-layout = <0>;
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		nxp,audout-width = <16>;
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		nxp,audout-mclk-fs = <128>;
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		/*
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		 * The 8bpp BT656 mode outputs YCbCr[11:4] across 8bits over
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		 * 2 pixclk cycles.
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		 */
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		nxp,vidout-portcfg =
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			/* YCbCr[11:8]<->VP[15:12]<->CSI_DATA[19:16] */
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			< TDA1997X_VP24_V15_12 TDA1997X_R_CR_CBCR_11_8 >,
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			/* YCbCr[7:4]<->VP[11:08]<->CSI_DATA[15:12] */
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			< TDA1997X_VP24_V11_08 TDA1997X_R_CR_CBCR_7_4 >,
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		port {
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			tda1997x_to_ipu1_csi0_mux: endpoint {
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				remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
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				bus-width = <16>;
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				hsync-active = <1>;
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				vsync-active = <1>;
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				data-active = <1>;
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			};
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		};
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	};
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