drivers/gpu/drm/amd/display/dc/dcn20/dcn20_opp.c - linux/kernel/git/gregkh/driver-core - Git at Google

 /*
  * Copyright 2012-15 Advanced Micro Devices, Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors: AMD
  *
  */

 #include "dm_services.h"
 #include "dcn20_opp.h"
 #include "reg_helper.h"

 #define REG(reg) \
 	(oppn20->regs->reg)

 #undef FN
 #define FN(reg_name, field_name) \
 	oppn20->opp_shift->field_name, oppn20->opp_mask->field_name

 #define CTX \
 	oppn20->base.ctx


 void opp2_set_disp_pattern_generator(
 		struct output_pixel_processor *opp,
 		enum controller_dp_test_pattern test_pattern,
 		enum dc_color_depth color_depth,
 		const struct tg_color *solid_color,
 		int width,
 		int height)
 {
 	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);
 	enum test_pattern_color_format bit_depth;
 	enum test_pattern_dyn_range dyn_range;
 	enum test_pattern_mode mode;

 	/* color ramp generator mixes 16-bits color */
 	uint32_t src_bpc = 16;
 	/* requested bpc */
 	uint32_t dst_bpc;
 	uint32_t index;
 	/* RGB values of the color bars.
 	 * Produce two RGB colors: RGB0 - white (all Fs)
 	 * and RGB1 - black (all 0s)
 	 * (three RGB components for two colors)
 	 */
 	uint16_t src_color[6] = {0xFFFF, 0xFFFF, 0xFFFF, 0x0000,
 						0x0000, 0x0000};
 	/* dest color (converted to the specified color format) */
 	uint16_t dst_color[6];
 	uint32_t inc_base;

 	/* translate to bit depth */
 	switch (color_depth) {
 	case COLOR_DEPTH_666:
 		bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_6;
 	break;
 	case COLOR_DEPTH_888:
 		bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_8;
 	break;
 	case COLOR_DEPTH_101010:
 		bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_10;
 	break;
 	case COLOR_DEPTH_121212:
 		bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_12;
 	break;
 	default:
 		bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_8;
 	break;
 	}

 	/* set DPG dimentions */
 	REG_SET_2(DPG_DIMENSIONS, 0,
 		DPG_ACTIVE_WIDTH, width,
 		DPG_ACTIVE_HEIGHT, height);

 	switch (test_pattern) {
 	case CONTROLLER_DP_TEST_PATTERN_COLORSQUARES:
 	case CONTROLLER_DP_TEST_PATTERN_COLORSQUARES_CEA:
 	{
 		dyn_range = (test_pattern ==
 				CONTROLLER_DP_TEST_PATTERN_COLORSQUARES_CEA ?
 				TEST_PATTERN_DYN_RANGE_CEA :
 				TEST_PATTERN_DYN_RANGE_VESA);

 		REG_UPDATE_6(DPG_CONTROL,
 			DPG_EN, 1,
 			DPG_MODE, TEST_PATTERN_MODE_COLORSQUARES_RGB,
 			DPG_DYNAMIC_RANGE, dyn_range,
 			DPG_BIT_DEPTH, bit_depth,
 			DPG_VRES, 6,
 			DPG_HRES, 6);
 	}
 	break;

 	case CONTROLLER_DP_TEST_PATTERN_VERTICALBARS:
 	case CONTROLLER_DP_TEST_PATTERN_HORIZONTALBARS:
 	{
 		mode = (test_pattern ==
 			CONTROLLER_DP_TEST_PATTERN_VERTICALBARS ?
 			TEST_PATTERN_MODE_VERTICALBARS :
 			TEST_PATTERN_MODE_HORIZONTALBARS);

 		switch (bit_depth) {
 		case TEST_PATTERN_COLOR_FORMAT_BPC_6:
 			dst_bpc = 6;
 		break;
 		case TEST_PATTERN_COLOR_FORMAT_BPC_8:
 			dst_bpc = 8;
 		break;
 		case TEST_PATTERN_COLOR_FORMAT_BPC_10:
 			dst_bpc = 10;
 		break;
 		default:
 			dst_bpc = 8;
 		break;
 		}

 		/* adjust color to the required colorFormat */
 		for (index = 0; index < 6; index++) {
 			/* dst = 2^dstBpc * src / 2^srcBpc = src >>
 			 * (srcBpc - dstBpc);
 			 */
 			dst_color[index] =
 				src_color[index] >> (src_bpc - dst_bpc);
 		/* DPG_COLOUR registers are 16-bit MSB aligned value with bits 3:0 hardwired to ZERO.
 		 * XXXXXXXXXX000000 for 10 bit,
 		 * XXXXXXXX00000000 for 8 bit,
 		 * XXXXXX0000000000 for 6 bits
 		 */
 			dst_color[index] <<= (16 - dst_bpc);
 		}

 		REG_SET_2(DPG_COLOUR_R_CR, 0,
 				DPG_COLOUR1_R_CR, dst_color[0],
 				DPG_COLOUR0_R_CR, dst_color[3]);
 		REG_SET_2(DPG_COLOUR_G_Y, 0,
 				DPG_COLOUR1_G_Y, dst_color[1],
 				DPG_COLOUR0_G_Y, dst_color[4]);
 		REG_SET_2(DPG_COLOUR_B_CB, 0,
 				DPG_COLOUR1_B_CB, dst_color[2],
 				DPG_COLOUR0_B_CB, dst_color[5]);

 		/* enable test pattern */
 		REG_UPDATE_6(DPG_CONTROL,
 			DPG_EN, 1,
 			DPG_MODE, mode,
 			DPG_DYNAMIC_RANGE, 0,
 			DPG_BIT_DEPTH, bit_depth,
 			DPG_VRES, 0,
 			DPG_HRES, 0);
 	}
 	break;

 	case CONTROLLER_DP_TEST_PATTERN_COLORRAMP:
 	{
 		mode = (bit_depth ==
 			TEST_PATTERN_COLOR_FORMAT_BPC_10 ?
 			TEST_PATTERN_MODE_DUALRAMP_RGB :
 			TEST_PATTERN_MODE_SINGLERAMP_RGB);

 		switch (bit_depth) {
 		case TEST_PATTERN_COLOR_FORMAT_BPC_6:
 			dst_bpc = 6;
 		break;
 		case TEST_PATTERN_COLOR_FORMAT_BPC_8:
 			dst_bpc = 8;
 		break;
 		case TEST_PATTERN_COLOR_FORMAT_BPC_10:
 			dst_bpc = 10;
 		break;
 		default:
 			dst_bpc = 8;
 		break;
 		}

 		/* increment for the first ramp for one color gradation
 		 * 1 gradation for 6-bit color is 2^10
 		 * gradations in 16-bit color
 		 */
 		inc_base = (src_bpc - dst_bpc);

 		switch (bit_depth) {
 		case TEST_PATTERN_COLOR_FORMAT_BPC_6:
 		{
 			REG_SET_3(DPG_RAMP_CONTROL, 0,
 				DPG_RAMP0_OFFSET, 0,
 				DPG_INC0, inc_base,
 				DPG_INC1, 0);
 			REG_UPDATE_2(DPG_CONTROL,
 				DPG_VRES, 6,
 				DPG_HRES, 6);
 		}
 		break;
 		case TEST_PATTERN_COLOR_FORMAT_BPC_8:
 		{
 			REG_SET_3(DPG_RAMP_CONTROL, 0,
 				DPG_RAMP0_OFFSET, 0,
 				DPG_INC0, inc_base,
 				DPG_INC1, 0);
 			REG_UPDATE_2(DPG_CONTROL,
 				DPG_VRES, 6,
 				DPG_HRES, 8);
 		}
 		break;
 		case TEST_PATTERN_COLOR_FORMAT_BPC_10:
 		{
 			REG_SET_3(DPG_RAMP_CONTROL, 0,
 				DPG_RAMP0_OFFSET, 384 << 6,
 				DPG_INC0, inc_base,
 				DPG_INC1, inc_base + 2);
 			REG_UPDATE_2(DPG_CONTROL,
 				DPG_VRES, 5,
 				DPG_HRES, 8);
 		}
 		break;
 		default:
 		break;
 		}

 		/* enable test pattern */
 		REG_UPDATE_4(DPG_CONTROL,
 			DPG_EN, 1,
 			DPG_MODE, mode,
 			DPG_DYNAMIC_RANGE, 0,
 			DPG_BIT_DEPTH, bit_depth);
 	}
 	break;
 	case CONTROLLER_DP_TEST_PATTERN_VIDEOMODE:
 	{
 		REG_WRITE(DPG_CONTROL, 0);
 		REG_WRITE(DPG_COLOUR_R_CR, 0);
 		REG_WRITE(DPG_COLOUR_G_Y, 0);
 		REG_WRITE(DPG_COLOUR_B_CB, 0);
 		REG_WRITE(DPG_RAMP_CONTROL, 0);
 	}
 	break;
 	case CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR:
 	{
 		opp2_dpg_set_blank_color(opp, solid_color);
 		REG_UPDATE_2(DPG_CONTROL,
 				DPG_EN, 1,
 				DPG_MODE, TEST_PATTERN_MODE_HORIZONTALBARS);

 		REG_SET_2(DPG_DIMENSIONS, 0,
 				DPG_ACTIVE_WIDTH, width,
 				DPG_ACTIVE_HEIGHT, height);
 	}
 	break;
 	default:
 		break;

 	}
 }

 void opp2_dpg_set_blank_color(
 		struct output_pixel_processor *opp,
 		const struct tg_color *color)
 {
 	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);

 	/* 16-bit MSB aligned value. Bits 3:0 of this field are hardwired to ZERO */
 	ASSERT(color);
 	REG_SET_2(DPG_COLOUR_B_CB, 0,
 			DPG_COLOUR1_B_CB, color->color_b_cb << 6,
 			DPG_COLOUR0_B_CB, color->color_b_cb << 6);
 	REG_SET_2(DPG_COLOUR_G_Y, 0,
 			DPG_COLOUR1_G_Y, color->color_g_y << 6,
 			DPG_COLOUR0_G_Y, color->color_g_y << 6);
 	REG_SET_2(DPG_COLOUR_R_CR, 0,
 			DPG_COLOUR1_R_CR, color->color_r_cr << 6,
 			DPG_COLOUR0_R_CR, color->color_r_cr << 6);
 }

 bool opp2_dpg_is_blanked(struct output_pixel_processor *opp)
 {
 	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);
 	uint32_t dpg_en, dpg_mode;
 	uint32_t double_buffer_pending;

 	REG_GET_2(DPG_CONTROL,
 			DPG_EN, &dpg_en,
 			DPG_MODE, &dpg_mode);

 	REG_GET(DPG_STATUS,
 			DPG_DOUBLE_BUFFER_PENDING, &double_buffer_pending);

 	return (dpg_en == 1) &&
 		(double_buffer_pending == 0);
 }

 void opp2_program_left_edge_extra_pixel (
 		struct output_pixel_processor *opp,
 		bool count)
 {
 	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);

 	/* Specifies the number of extra left edge pixels that are supplied to
 	 * the 422 horizontal chroma sub-sample filter.
 	 * Note that when left edge pixel is not "0", fmt pixel encoding can be in either 420 or 422 mode
 	 * */
 	REG_UPDATE(FMT_422_CONTROL, FMT_LEFT_EDGE_EXTRA_PIXEL_COUNT, count);
 }

 /*****************************************/
 /* Constructor, Destructor               */
 /*****************************************/

 static struct opp_funcs dcn20_opp_funcs = {
 		.opp_set_dyn_expansion = opp1_set_dyn_expansion,
 		.opp_program_fmt = opp1_program_fmt,
 		.opp_program_bit_depth_reduction = opp1_program_bit_depth_reduction,
 		.opp_program_stereo = opp1_program_stereo,
 		.opp_pipe_clock_control = opp1_pipe_clock_control,
 		.opp_set_disp_pattern_generator = opp2_set_disp_pattern_generator,
 		.dpg_is_blanked = opp2_dpg_is_blanked,
 		.opp_dpg_set_blank_color = opp2_dpg_set_blank_color,
 		.opp_destroy = opp1_destroy,
 		.opp_program_left_edge_extra_pixel = opp2_program_left_edge_extra_pixel,
 };

 void dcn20_opp_construct(struct dcn20_opp *oppn20,
 	struct dc_context *ctx,
 	uint32_t inst,
 	const struct dcn20_opp_registers *regs,
 	const struct dcn20_opp_shift *opp_shift,
 	const struct dcn20_opp_mask *opp_mask)
 {
 	oppn20->base.ctx = ctx;
 	oppn20->base.inst = inst;
 	oppn20->base.funcs = &dcn20_opp_funcs;

 	oppn20->regs = regs;
 	oppn20->opp_shift = opp_shift;
 	oppn20->opp_mask = opp_mask;
 }
	/*
	* Copyright 2012-15 Advanced Micro Devices, Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	* Authors: AMD
	*
	*/

	#include "dm_services.h"
	#include "dcn20_opp.h"
	#include "reg_helper.h"

	#define REG(reg) \
	(oppn20->regs->reg)

	#undef FN
	#define FN(reg_name, field_name) \
	oppn20->opp_shift->field_name, oppn20->opp_mask->field_name

	#define CTX \
	oppn20->base.ctx


	void opp2_set_disp_pattern_generator(
	struct output_pixel_processor *opp,
	enum controller_dp_test_pattern test_pattern,
	enum dc_color_depth color_depth,
	const struct tg_color *solid_color,
	int width,
	int height)
	{
	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);
	enum test_pattern_color_format bit_depth;
	enum test_pattern_dyn_range dyn_range;
	enum test_pattern_mode mode;

	/* color ramp generator mixes 16-bits color */
	uint32_t src_bpc = 16;
	/* requested bpc */
	uint32_t dst_bpc;
	uint32_t index;
	/* RGB values of the color bars.
	* Produce two RGB colors: RGB0 - white (all Fs)
	* and RGB1 - black (all 0s)
	* (three RGB components for two colors)
	*/
	uint16_t src_color[6] = {0xFFFF, 0xFFFF, 0xFFFF, 0x0000,
	0x0000, 0x0000};
	/* dest color (converted to the specified color format) */
	uint16_t dst_color[6];
	uint32_t inc_base;

	/* translate to bit depth */
	switch (color_depth) {
	case COLOR_DEPTH_666:
	bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_6;
	break;
	case COLOR_DEPTH_888:
	bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_8;
	break;
	case COLOR_DEPTH_101010:
	bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_10;
	break;
	case COLOR_DEPTH_121212:
	bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_12;
	break;
	default:
	bit_depth = TEST_PATTERN_COLOR_FORMAT_BPC_8;
	break;
	}

	/* set DPG dimentions */
	REG_SET_2(DPG_DIMENSIONS, 0,
	DPG_ACTIVE_WIDTH, width,
	DPG_ACTIVE_HEIGHT, height);

	switch (test_pattern) {
	case CONTROLLER_DP_TEST_PATTERN_COLORSQUARES:
	case CONTROLLER_DP_TEST_PATTERN_COLORSQUARES_CEA:
	{
	dyn_range = (test_pattern ==
	CONTROLLER_DP_TEST_PATTERN_COLORSQUARES_CEA ?
	TEST_PATTERN_DYN_RANGE_CEA :
	TEST_PATTERN_DYN_RANGE_VESA);

	REG_UPDATE_6(DPG_CONTROL,
	DPG_EN, 1,
	DPG_MODE, TEST_PATTERN_MODE_COLORSQUARES_RGB,
	DPG_DYNAMIC_RANGE, dyn_range,
	DPG_BIT_DEPTH, bit_depth,
	DPG_VRES, 6,
	DPG_HRES, 6);
	}
	break;

	case CONTROLLER_DP_TEST_PATTERN_VERTICALBARS:
	case CONTROLLER_DP_TEST_PATTERN_HORIZONTALBARS:
	{
	mode = (test_pattern ==
	CONTROLLER_DP_TEST_PATTERN_VERTICALBARS ?
	TEST_PATTERN_MODE_VERTICALBARS :
	TEST_PATTERN_MODE_HORIZONTALBARS);

	switch (bit_depth) {
	case TEST_PATTERN_COLOR_FORMAT_BPC_6:
	dst_bpc = 6;
	break;
	case TEST_PATTERN_COLOR_FORMAT_BPC_8:
	dst_bpc = 8;
	break;
	case TEST_PATTERN_COLOR_FORMAT_BPC_10:
	dst_bpc = 10;
	break;
	default:
	dst_bpc = 8;
	break;
	}

	/* adjust color to the required colorFormat */
	for (index = 0; index < 6; index++) {
	/* dst = 2^dstBpc * src / 2^srcBpc = src >>
	* (srcBpc - dstBpc);
	*/
	dst_color[index] =
	src_color[index] >> (src_bpc - dst_bpc);
	/* DPG_COLOUR registers are 16-bit MSB aligned value with bits 3:0 hardwired to ZERO.
	* XXXXXXXXXX000000 for 10 bit,
	* XXXXXXXX00000000 for 8 bit,
	* XXXXXX0000000000 for 6 bits
	*/
	dst_color[index] <<= (16 - dst_bpc);
	}

	REG_SET_2(DPG_COLOUR_R_CR, 0,
	DPG_COLOUR1_R_CR, dst_color[0],
	DPG_COLOUR0_R_CR, dst_color[3]);
	REG_SET_2(DPG_COLOUR_G_Y, 0,
	DPG_COLOUR1_G_Y, dst_color[1],
	DPG_COLOUR0_G_Y, dst_color[4]);
	REG_SET_2(DPG_COLOUR_B_CB, 0,
	DPG_COLOUR1_B_CB, dst_color[2],
	DPG_COLOUR0_B_CB, dst_color[5]);

	/* enable test pattern */
	REG_UPDATE_6(DPG_CONTROL,
	DPG_EN, 1,
	DPG_MODE, mode,
	DPG_DYNAMIC_RANGE, 0,
	DPG_BIT_DEPTH, bit_depth,
	DPG_VRES, 0,
	DPG_HRES, 0);
	}
	break;

	case CONTROLLER_DP_TEST_PATTERN_COLORRAMP:
	{
	mode = (bit_depth ==
	TEST_PATTERN_COLOR_FORMAT_BPC_10 ?
	TEST_PATTERN_MODE_DUALRAMP_RGB :
	TEST_PATTERN_MODE_SINGLERAMP_RGB);

	switch (bit_depth) {
	case TEST_PATTERN_COLOR_FORMAT_BPC_6:
	dst_bpc = 6;
	break;
	case TEST_PATTERN_COLOR_FORMAT_BPC_8:
	dst_bpc = 8;
	break;
	case TEST_PATTERN_COLOR_FORMAT_BPC_10:
	dst_bpc = 10;
	break;
	default:
	dst_bpc = 8;
	break;
	}

	/* increment for the first ramp for one color gradation
	* 1 gradation for 6-bit color is 2^10
	* gradations in 16-bit color
	*/
	inc_base = (src_bpc - dst_bpc);

	switch (bit_depth) {
	case TEST_PATTERN_COLOR_FORMAT_BPC_6:
	{
	REG_SET_3(DPG_RAMP_CONTROL, 0,
	DPG_RAMP0_OFFSET, 0,
	DPG_INC0, inc_base,
	DPG_INC1, 0);
	REG_UPDATE_2(DPG_CONTROL,
	DPG_VRES, 6,
	DPG_HRES, 6);
	}
	break;
	case TEST_PATTERN_COLOR_FORMAT_BPC_8:
	{
	REG_SET_3(DPG_RAMP_CONTROL, 0,
	DPG_RAMP0_OFFSET, 0,
	DPG_INC0, inc_base,
	DPG_INC1, 0);
	REG_UPDATE_2(DPG_CONTROL,
	DPG_VRES, 6,
	DPG_HRES, 8);
	}
	break;
	case TEST_PATTERN_COLOR_FORMAT_BPC_10:
	{
	REG_SET_3(DPG_RAMP_CONTROL, 0,
	DPG_RAMP0_OFFSET, 384 << 6,
	DPG_INC0, inc_base,
	DPG_INC1, inc_base + 2);
	REG_UPDATE_2(DPG_CONTROL,
	DPG_VRES, 5,
	DPG_HRES, 8);
	}
	break;
	default:
	break;
	}

	/* enable test pattern */
	REG_UPDATE_4(DPG_CONTROL,
	DPG_EN, 1,
	DPG_MODE, mode,
	DPG_DYNAMIC_RANGE, 0,
	DPG_BIT_DEPTH, bit_depth);
	}
	break;
	case CONTROLLER_DP_TEST_PATTERN_VIDEOMODE:
	{
	REG_WRITE(DPG_CONTROL, 0);
	REG_WRITE(DPG_COLOUR_R_CR, 0);
	REG_WRITE(DPG_COLOUR_G_Y, 0);
	REG_WRITE(DPG_COLOUR_B_CB, 0);
	REG_WRITE(DPG_RAMP_CONTROL, 0);
	}
	break;
	case CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR:
	{
	opp2_dpg_set_blank_color(opp, solid_color);
	REG_UPDATE_2(DPG_CONTROL,
	DPG_EN, 1,
	DPG_MODE, TEST_PATTERN_MODE_HORIZONTALBARS);

	REG_SET_2(DPG_DIMENSIONS, 0,
	DPG_ACTIVE_WIDTH, width,
	DPG_ACTIVE_HEIGHT, height);
	}
	break;
	default:
	break;

	}
	}

	void opp2_dpg_set_blank_color(
	struct output_pixel_processor *opp,
	const struct tg_color *color)
	{
	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);

	/* 16-bit MSB aligned value. Bits 3:0 of this field are hardwired to ZERO */
	ASSERT(color);
	REG_SET_2(DPG_COLOUR_B_CB, 0,
	DPG_COLOUR1_B_CB, color->color_b_cb << 6,
	DPG_COLOUR0_B_CB, color->color_b_cb << 6);
	REG_SET_2(DPG_COLOUR_G_Y, 0,
	DPG_COLOUR1_G_Y, color->color_g_y << 6,
	DPG_COLOUR0_G_Y, color->color_g_y << 6);
	REG_SET_2(DPG_COLOUR_R_CR, 0,
	DPG_COLOUR1_R_CR, color->color_r_cr << 6,
	DPG_COLOUR0_R_CR, color->color_r_cr << 6);
	}

	bool opp2_dpg_is_blanked(struct output_pixel_processor *opp)
	{
	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);
	uint32_t dpg_en, dpg_mode;
	uint32_t double_buffer_pending;

	REG_GET_2(DPG_CONTROL,
	DPG_EN, &dpg_en,
	DPG_MODE, &dpg_mode);

	REG_GET(DPG_STATUS,
	DPG_DOUBLE_BUFFER_PENDING, &double_buffer_pending);

	return (dpg_en == 1) &&
	(double_buffer_pending == 0);
	}

	void opp2_program_left_edge_extra_pixel (
	struct output_pixel_processor *opp,
	bool count)
	{
	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);

	/* Specifies the number of extra left edge pixels that are supplied to
	* the 422 horizontal chroma sub-sample filter.
	* Note that when left edge pixel is not "0", fmt pixel encoding can be in either 420 or 422 mode
	* */
	REG_UPDATE(FMT_422_CONTROL, FMT_LEFT_EDGE_EXTRA_PIXEL_COUNT, count);
	}

	/*****************************************/
	/* Constructor, Destructor */
	/*****************************************/

	static struct opp_funcs dcn20_opp_funcs = {
	.opp_set_dyn_expansion = opp1_set_dyn_expansion,
	.opp_program_fmt = opp1_program_fmt,
	.opp_program_bit_depth_reduction = opp1_program_bit_depth_reduction,
	.opp_program_stereo = opp1_program_stereo,
	.opp_pipe_clock_control = opp1_pipe_clock_control,
	.opp_set_disp_pattern_generator = opp2_set_disp_pattern_generator,
	.dpg_is_blanked = opp2_dpg_is_blanked,
	.opp_dpg_set_blank_color = opp2_dpg_set_blank_color,
	.opp_destroy = opp1_destroy,
	.opp_program_left_edge_extra_pixel = opp2_program_left_edge_extra_pixel,
	};

	void dcn20_opp_construct(struct dcn20_opp *oppn20,
	struct dc_context *ctx,
	uint32_t inst,
	const struct dcn20_opp_registers *regs,
	const struct dcn20_opp_shift *opp_shift,
	const struct dcn20_opp_mask *opp_mask)
	{
	oppn20->base.ctx = ctx;
	oppn20->base.inst = inst;
	oppn20->base.funcs = &dcn20_opp_funcs;

	oppn20->regs = regs;
	oppn20->opp_shift = opp_shift;
	oppn20->opp_mask = opp_mask;
	}