drm/amd/display: Add support for DCN302 (v2)

 - add DCN302 resource, irq service, dmub loader,
 - handle  DC_VERSION_DCN_3_02
 - define DCN302 power gating functions
 - handle DCN302 in GPIO files
 - define I2C regs
 - add CONFIG_DRM_AMD_DC_DCN3_02 guard

v2: rebase fixes (Alex)
Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/Kconfig

@@ -34,6 +34,13 @@ config DRM_AMD_DC_DCN3_01
 	    Choose this option if you want to have
 	    Van Gogh support for display engine
 
+config DRM_AMD_DC_DCN3_02
+        bool "DCN 3.02 family"
+        depends on DRM_AMD_DC_DCN3_0
+        help
+            Choose this option if you want to have
+            Dimgrey_cavefish support for display engine
+
 config DRM_AMD_DC_HDCP
 	bool "Enable HDCP support in DC"
 	depends on DRM_AMD_DC

drivers/gpu/drm/amd/display/dc/Makefile

@@ -40,6 +40,11 @@ ifdef CONFIG_DRM_AMD_DC_DCN3_01
 DC_LIBS += dcn301
 endif
 
+ifdef CONFIG_DRM_AMD_DC_DCN3_02
+DC_LIBS += dcn302
+
+endif
+
 DC_LIBS += dce120
 
 DC_LIBS += dce112

drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c

@@ -82,6 +82,11 @@ bool dal_bios_parser_init_cmd_tbl_helper2(
 	case DCN_VERSION_3_01:
 		*h = dal_cmd_tbl_helper_dce112_get_table2();
 		return true;
+#endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+	case DCN_VERSION_3_02:
+		*h = dal_cmd_tbl_helper_dce112_get_table2();
+		return true;
 #endif
 	default:
 		/* Unsupported DCE */

drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c

@@ -186,6 +186,12 @@ struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *p
 			dcn3_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
 			break;
 		}
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+		if (ASICREV_IS_DIMGREY_CAVEFISH_P(asic_id.hw_internal_rev)) {
+			dcn3_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
+			break;
+		}
+#endif
 #endif
 		dcn20_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
 		break;

drivers/gpu/drm/amd/display/dc/core/dc_resource.c

@@ -61,6 +61,9 @@
 #if defined(CONFIG_DRM_AMD_DC_DCN3_01)
 #include "../dcn301/dcn301_resource.h"
 #endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+#include "../dcn302/dcn302_resource.h"
+#endif
 
 #define DC_LOGGER_INIT(logger)
 
@@ -131,6 +134,10 @@ enum dce_version resource_parse_asic_id(struct hw_asic_id asic_id)
 #if defined(CONFIG_DRM_AMD_DC_DCN3_0)
 		if (ASICREV_IS_SIENNA_CICHLID_P(asic_id.hw_internal_rev))
 			dc_version = DCN_VERSION_3_0;
+#endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+		if (ASICREV_IS_DIMGREY_CAVEFISH_P(asic_id.hw_internal_rev))
+			dc_version = DCN_VERSION_3_02;
 #endif
 		break;
 
@@ -223,6 +230,12 @@ struct resource_pool *dc_create_resource_pool(struct dc  *dc,
 	case DCN_VERSION_3_01:
 		res_pool = dcn301_create_resource_pool(init_data, dc);
 		break;
+#endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+	case DCN_VERSION_3_02:
+		res_pool = dcn302_create_resource_pool(init_data, dc);
+		break;
+
 #endif
 	default:
 		break;

drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.h

@@ -125,6 +125,26 @@
 		SRII(PIXEL_RATE_CNTL, OTG, 3)
 #endif
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+#define CS_COMMON_REG_LIST_DCN3_02(index, pllid) \
+		SRI(PIXCLK_RESYNC_CNTL, PHYPLL, pllid),\
+		SRII(PHASE, DP_DTO, 0),\
+		SRII(PHASE, DP_DTO, 1),\
+		SRII(PHASE, DP_DTO, 2),\
+		SRII(PHASE, DP_DTO, 3),\
+		SRII(PHASE, DP_DTO, 4),\
+		SRII(MODULO, DP_DTO, 0),\
+		SRII(MODULO, DP_DTO, 1),\
+		SRII(MODULO, DP_DTO, 2),\
+		SRII(MODULO, DP_DTO, 3),\
+		SRII(MODULO, DP_DTO, 4),\
+		SRII(PIXEL_RATE_CNTL, OTG, 0),\
+		SRII(PIXEL_RATE_CNTL, OTG, 1),\
+		SRII(PIXEL_RATE_CNTL, OTG, 2),\
+		SRII(PIXEL_RATE_CNTL, OTG, 3),\
+		SRII(PIXEL_RATE_CNTL, OTG, 4)
+
+#endif
 #define CS_COMMON_MASK_SH_LIST_DCN2_0(mask_sh)\
 	CS_SF(DP_DTO0_PHASE, DP_DTO0_PHASE, mask_sh),\
 	CS_SF(DP_DTO0_MODULO, DP_DTO0_MODULO, mask_sh),\

drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h

@@ -426,6 +426,86 @@
 	SR(AZALIA_CONTROLLER_CLOCK_GATING)
 #endif
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+#define HWSEQ_DCN302_REG_LIST()\
+	HWSEQ_DCN_REG_LIST(), \
+	HSWEQ_DCN_PIXEL_RATE_REG_LIST(OTG, 0), \
+	HSWEQ_DCN_PIXEL_RATE_REG_LIST(OTG, 1), \
+	HSWEQ_DCN_PIXEL_RATE_REG_LIST(OTG, 2), \
+	HSWEQ_DCN_PIXEL_RATE_REG_LIST(OTG, 3), \
+	HSWEQ_DCN_PIXEL_RATE_REG_LIST(OTG, 4), \
+	SR(MICROSECOND_TIME_BASE_DIV), \
+	SR(MILLISECOND_TIME_BASE_DIV), \
+	SR(DISPCLK_FREQ_CHANGE_CNTL), \
+	SR(RBBMIF_TIMEOUT_DIS), \
+	SR(RBBMIF_TIMEOUT_DIS_2), \
+	SR(DCHUBBUB_CRC_CTRL), \
+	SR(DPP_TOP0_DPP_CRC_CTRL), \
+	SR(DPP_TOP0_DPP_CRC_VAL_B_A), \
+	SR(DPP_TOP0_DPP_CRC_VAL_R_G), \
+	SR(MPC_CRC_CTRL), \
+	SR(MPC_CRC_RESULT_GB), \
+	SR(MPC_CRC_RESULT_C), \
+	SR(MPC_CRC_RESULT_AR), \
+	SR(DOMAIN0_PG_CONFIG), \
+	SR(DOMAIN1_PG_CONFIG), \
+	SR(DOMAIN2_PG_CONFIG), \
+	SR(DOMAIN3_PG_CONFIG), \
+	SR(DOMAIN4_PG_CONFIG), \
+	SR(DOMAIN5_PG_CONFIG), \
+	SR(DOMAIN6_PG_CONFIG), \
+	SR(DOMAIN7_PG_CONFIG), \
+	SR(DOMAIN8_PG_CONFIG), \
+	SR(DOMAIN9_PG_CONFIG), \
+	SR(DOMAIN16_PG_CONFIG), \
+	SR(DOMAIN17_PG_CONFIG), \
+	SR(DOMAIN18_PG_CONFIG), \
+	SR(DOMAIN19_PG_CONFIG), \
+	SR(DOMAIN20_PG_CONFIG), \
+	SR(DOMAIN0_PG_STATUS), \
+	SR(DOMAIN1_PG_STATUS), \
+	SR(DOMAIN2_PG_STATUS), \
+	SR(DOMAIN3_PG_STATUS), \
+	SR(DOMAIN4_PG_STATUS), \
+	SR(DOMAIN5_PG_STATUS), \
+	SR(DOMAIN6_PG_STATUS), \
+	SR(DOMAIN7_PG_STATUS), \
+	SR(DOMAIN8_PG_STATUS), \
+	SR(DOMAIN9_PG_STATUS), \
+	SR(DOMAIN16_PG_STATUS), \
+	SR(DOMAIN17_PG_STATUS), \
+	SR(DOMAIN18_PG_STATUS), \
+	SR(DOMAIN19_PG_STATUS), \
+	SR(DOMAIN20_PG_STATUS), \
+	SR(D1VGA_CONTROL), \
+	SR(D2VGA_CONTROL), \
+	SR(D3VGA_CONTROL), \
+	SR(D4VGA_CONTROL), \
+	SR(D5VGA_CONTROL), \
+	SR(D6VGA_CONTROL), \
+	SR(DC_IP_REQUEST_CNTL), \
+	SR(AZALIA_AUDIO_DTO), \
+	SR(AZALIA_CONTROLLER_CLOCK_GATING)
+
+#endif
+
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+
+#define HWSEQ_PIXEL_RATE_REG_LIST_302(blk) \
+	SRII(PIXEL_RATE_CNTL, blk, 0), \
+	SRII(PIXEL_RATE_CNTL, blk, 1),\
+	SRII(PIXEL_RATE_CNTL, blk, 2),\
+	SRII(PIXEL_RATE_CNTL, blk, 3), \
+	SRII(PIXEL_RATE_CNTL, blk, 4)
+
+#define HWSEQ_PHYPLL_REG_LIST_302(blk) \
+	SRII(PHYPLL_PIXEL_RATE_CNTL, blk, 0), \
+	SRII(PHYPLL_PIXEL_RATE_CNTL, blk, 1),\
+	SRII(PHYPLL_PIXEL_RATE_CNTL, blk, 2),\
+	SRII(PHYPLL_PIXEL_RATE_CNTL, blk, 3), \
+	SRII(PHYPLL_PIXEL_RATE_CNTL, blk, 4)
+#endif
+
 struct dce_hwseq_registers {
 	uint32_t DCFE_CLOCK_CONTROL[6];
 	uint32_t DCFEV_CLOCK_CONTROL;
@@ -813,6 +893,60 @@ struct dce_hwseq_registers {
 	HWS_SF(, AZALIA_AUDIO_DTO, AZALIA_AUDIO_DTO_MODULE, mask_sh)
 #endif
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+#define HWSEQ_DCN302_MASK_SH_LIST(mask_sh)\
+	HWSEQ_DCN_MASK_SH_LIST(mask_sh), \
+	HWS_SF(, DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_REFDIV, mask_sh), \
+	HWS_SF(, DOMAIN0_PG_CONFIG, DOMAIN0_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN0_PG_CONFIG, DOMAIN0_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN1_PG_CONFIG, DOMAIN1_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN1_PG_CONFIG, DOMAIN1_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN2_PG_CONFIG, DOMAIN2_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN2_PG_CONFIG, DOMAIN2_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN3_PG_CONFIG, DOMAIN3_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN3_PG_CONFIG, DOMAIN3_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN4_PG_CONFIG, DOMAIN4_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN4_PG_CONFIG, DOMAIN4_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN5_PG_CONFIG, DOMAIN5_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN5_PG_CONFIG, DOMAIN5_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN6_PG_CONFIG, DOMAIN6_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN6_PG_CONFIG, DOMAIN6_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN7_PG_CONFIG, DOMAIN7_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN7_PG_CONFIG, DOMAIN7_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN8_PG_CONFIG, DOMAIN8_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN8_PG_CONFIG, DOMAIN8_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN9_PG_CONFIG, DOMAIN9_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN9_PG_CONFIG, DOMAIN9_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN16_PG_CONFIG, DOMAIN16_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN16_PG_CONFIG, DOMAIN16_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN17_PG_CONFIG, DOMAIN17_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN17_PG_CONFIG, DOMAIN17_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN18_PG_CONFIG, DOMAIN18_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN18_PG_CONFIG, DOMAIN18_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN19_PG_CONFIG, DOMAIN19_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN19_PG_CONFIG, DOMAIN19_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN20_PG_CONFIG, DOMAIN20_POWER_FORCEON, mask_sh), \
+	HWS_SF(, DOMAIN20_PG_CONFIG, DOMAIN20_POWER_GATE, mask_sh), \
+	HWS_SF(, DOMAIN0_PG_STATUS, DOMAIN0_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN1_PG_STATUS, DOMAIN1_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN2_PG_STATUS, DOMAIN2_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN3_PG_STATUS, DOMAIN3_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN4_PG_STATUS, DOMAIN4_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN5_PG_STATUS, DOMAIN5_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN6_PG_STATUS, DOMAIN6_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN7_PG_STATUS, DOMAIN7_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN8_PG_STATUS, DOMAIN8_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN9_PG_STATUS, DOMAIN9_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN16_PG_STATUS, DOMAIN16_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN17_PG_STATUS, DOMAIN17_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN18_PG_STATUS, DOMAIN18_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN19_PG_STATUS, DOMAIN19_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DOMAIN20_PG_STATUS, DOMAIN20_PGFSM_PWR_STATUS, mask_sh), \
+	HWS_SF(, DC_IP_REQUEST_CNTL, IP_REQUEST_EN, mask_sh), \
+	HWS_SF(, AZALIA_AUDIO_DTO, AZALIA_AUDIO_DTO_MODULE, mask_sh)
+
+#endif
+
 #define HWSEQ_REG_FIELD_LIST(type) \
 	type DCFE_CLOCK_ENABLE; \
 	type DCFEV_CLOCK_ENABLE; \

drivers/gpu/drm/amd/display/dc/dcn302/Makefile

+#
+# (c) Copyright 2020 Advanced Micro Devices, Inc. All the rights reserved
+#
+#  All rights reserved.  This notice is intended as a precaution against
+#  inadvertent publication and does not imply publication or any waiver
+#  of confidentiality.  The year included in the foregoing notice is the
+#  year of creation of the work.
+#
+#  Authors: AMD
+#
+# Makefile for dcn302.
+
+DCN3_02 = dcn302_init.o dcn302_hwseq.o dcn302_resource.o
+
+AMD_DAL_DCN3_02 = $(addprefix $(AMDDALPATH)/dc/dcn302/,$(DCN3_02))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_DCN3_02)

drivers/gpu/drm/amd/display/dc/dcn302/dcn302_dccg.h

+/*
+ * Copyright 2020 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
+ *
+ */
+
+#ifndef __DCN302_DCCG_H__
+#define __DCN302_DCCG_H__
+
+#include "dcn30/dcn30_dccg.h"
+
+
+#define DCCG_REG_LIST_DCN3_02() \
+	DCCG_COMMON_REG_LIST_DCN_BASE(),\
+	DCCG_SRII(DTO_PARAM, DPPCLK, 4)
+
+#define DCCG_MASK_SH_LIST_DCN3_02(mask_sh) \
+	DCCG_COMMON_MASK_SH_LIST_DCN_COMMON_BASE(mask_sh),\
+	DCCG_SFI(DPPCLK_DTO_CTRL, DTO_ENABLE, DPPCLK, 4, mask_sh),\
+	DCCG_SFI(DPPCLK_DTO_CTRL, DTO_DB_EN, DPPCLK, 4, mask_sh)
+
+#endif //__DCN302_DCCG_H__

drivers/gpu/drm/amd/display/dc/dcn302/dcn302_hwseq.c

+/*
+ * Copyright 2020 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 "dcn302_hwseq.h"
+
+#include "dce/dce_hwseq.h"
+
+#include "reg_helper.h"
+#include "dc.h"
+
+#define DC_LOGGER_INIT(logger)
+
+#define CTX \
+	hws->ctx
+#define REG(reg)\
+	hws->regs->reg
+
+#undef FN
+#define FN(reg_name, field_name) \
+	hws->shifts->field_name, hws->masks->field_name
+
+
+void dcn302_dpp_pg_control(struct dce_hwseq *hws, unsigned int dpp_inst, bool power_on)
+{
+	uint32_t power_gate = power_on ? 0 : 1;
+	uint32_t pwr_status = power_on ? 0 : 2;
+
+	if (hws->ctx->dc->debug.disable_dpp_power_gate)
+		return;
+	if (REG(DOMAIN1_PG_CONFIG) == 0)
+		return;
+
+	switch (dpp_inst) {
+	case 0: /* DPP0 */
+		REG_UPDATE(DOMAIN1_PG_CONFIG,
+				DOMAIN1_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN1_PG_STATUS,
+				DOMAIN1_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 1: /* DPP1 */
+		REG_UPDATE(DOMAIN3_PG_CONFIG,
+				DOMAIN3_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN3_PG_STATUS,
+				DOMAIN3_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 2: /* DPP2 */
+		REG_UPDATE(DOMAIN5_PG_CONFIG,
+				DOMAIN5_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN5_PG_STATUS,
+				DOMAIN5_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 3: /* DPP3 */
+		REG_UPDATE(DOMAIN7_PG_CONFIG,
+				DOMAIN7_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN7_PG_STATUS,
+				DOMAIN7_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 4: /* DPP4 */
+		/*
+		 * Do not power gate DPP4, should be left at HW default, power on permanently.
+		 * PG on Pipe4 is De-featured, attempting to put it to PG state may result in hard
+		 * reset.
+		 * REG_UPDATE(DOMAIN9_PG_CONFIG,
+		 *		DOMAIN9_POWER_GATE, power_gate);
+		 *
+		 * REG_WAIT(DOMAIN9_PG_STATUS,
+		 *		DOMAIN9_PGFSM_PWR_STATUS, pwr_status,
+		 *		1, 1000);
+		 */
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+		break;
+	}
+}
+
+void dcn302_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool power_on)
+{
+	uint32_t power_gate = power_on ? 0 : 1;
+	uint32_t pwr_status = power_on ? 0 : 2;
+
+	if (hws->ctx->dc->debug.disable_hubp_power_gate)
+		return;
+	if (REG(DOMAIN0_PG_CONFIG) == 0)
+		return;
+
+	switch (hubp_inst) {
+	case 0: /* DCHUBP0 */
+		REG_UPDATE(DOMAIN0_PG_CONFIG,
+				DOMAIN0_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN0_PG_STATUS,
+				DOMAIN0_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 1: /* DCHUBP1 */
+		REG_UPDATE(DOMAIN2_PG_CONFIG,
+				DOMAIN2_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN2_PG_STATUS,
+				DOMAIN2_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 2: /* DCHUBP2 */
+		REG_UPDATE(DOMAIN4_PG_CONFIG,
+				DOMAIN4_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN4_PG_STATUS,
+				DOMAIN4_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 3: /* DCHUBP3 */
+		REG_UPDATE(DOMAIN6_PG_CONFIG,
+				DOMAIN6_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN6_PG_STATUS,
+				DOMAIN6_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 4: /* DCHUBP4 */
+		/*
+		 * Do not power gate DCHUB4, should be left at HW default, power on permanently.
+		 * PG on Pipe4 is De-featured, attempting to put it to PG state may result in hard
+		 * reset.
+		 * REG_UPDATE(DOMAIN8_PG_CONFIG,
+		 *		DOMAIN8_POWER_GATE, power_gate);
+		 *
+		 * REG_WAIT(DOMAIN8_PG_STATUS,
+		 *		DOMAIN8_PGFSM_PWR_STATUS, pwr_status,
+		 *		1, 1000);
+		 */
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+		break;
+	}
+}
+
+void dcn302_dsc_pg_control(struct dce_hwseq *hws, unsigned int dsc_inst, bool power_on)
+{
+	uint32_t power_gate = power_on ? 0 : 1;
+	uint32_t pwr_status = power_on ? 0 : 2;
+	uint32_t org_ip_request_cntl = 0;
+
+	if (hws->ctx->dc->debug.disable_dsc_power_gate)
+		return;
+
+	if (REG(DOMAIN16_PG_CONFIG) == 0)
+		return;
+
+	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
+	if (org_ip_request_cntl == 0)
+		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
+
+	switch (dsc_inst) {
+	case 0: /* DSC0 */
+		REG_UPDATE(DOMAIN16_PG_CONFIG,
+				DOMAIN16_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN16_PG_STATUS,
+				DOMAIN16_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 1: /* DSC1 */
+		REG_UPDATE(DOMAIN17_PG_CONFIG,
+				DOMAIN17_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN17_PG_STATUS,
+				DOMAIN17_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 2: /* DSC2 */
+		REG_UPDATE(DOMAIN18_PG_CONFIG,
+				DOMAIN18_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN18_PG_STATUS,
+				DOMAIN18_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 3: /* DSC3 */
+		REG_UPDATE(DOMAIN19_PG_CONFIG,
+				DOMAIN19_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN19_PG_STATUS,
+				DOMAIN19_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	case 4: /* DSC4 */
+		REG_UPDATE(DOMAIN20_PG_CONFIG,
+				DOMAIN20_POWER_GATE, power_gate);
+
+		REG_WAIT(DOMAIN20_PG_STATUS,
+				DOMAIN20_PGFSM_PWR_STATUS, pwr_status,
+				1, 1000);
+		break;
+	default:
+		BREAK_TO_DEBUGGER();
+		break;
+	}
+
+	if (org_ip_request_cntl == 0)
+		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
+}

drivers/gpu/drm/amd/display/dc/dcn302/dcn302_hwseq.h

+/*
+ * Copyright 2020 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
+ *
+ */
+
+#ifndef __DC_HWSS_DCN302_H__
+#define __DC_HWSS_DCN302_H__
+
+#include "hw_sequencer_private.h"
+
+void dcn302_dpp_pg_control(struct dce_hwseq *hws, unsigned int dpp_inst, bool power_on);
+void dcn302_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool power_on);
+void dcn302_dsc_pg_control(struct dce_hwseq *hws, unsigned int dsc_inst, bool power_on);
+
+#endif /* __DC_HWSS_DCN302_H__ */

drivers/gpu/drm/amd/display/dc/dcn302/dcn302_init.c

+/*
+ * Copyright 2020 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 "dcn302_hwseq.h"
+
+#include "dcn30/dcn30_init.h"
+
+#include "dc.h"
+
+void dcn302_hw_sequencer_construct(struct dc *dc)
+{
+	dcn30_hw_sequencer_construct(dc);
+
+	dc->hwseq->funcs.dpp_pg_control = dcn302_dpp_pg_control;
+	dc->hwseq->funcs.hubp_pg_control = dcn302_hubp_pg_control;
+	dc->hwseq->funcs.dsc_pg_control = dcn302_dsc_pg_control;
+}

drivers/gpu/drm/amd/display/dc/dcn302/dcn302_init.h

+/*
+ * Copyright 2020 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
+ *
+ */
+
+#ifndef __DC_DCN302_INIT_H__
+#define __DC_DCN302_INIT_H__
+
+struct dc;
+
+void dcn302_hw_sequencer_construct(struct dc *dc);
+
+#endif /* __DC_DCN302_INIT_H__ */

drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.h

+/*
+ * Copyright 2020 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
+ *
+ */
+
+#ifndef _DCN302_RESOURCE_H_
+#define _DCN302_RESOURCE_H_
+
+#include "core_types.h"
+
+struct resource_pool *dcn302_create_resource_pool(const struct dc_init_data *init_data, struct dc *dc);
+
+#endif /* _DCN302_RESOURCE_H_ */

drivers/gpu/drm/amd/display/dc/gpio/hw_factory.c

@@ -116,6 +116,9 @@ bool dal_hw_factory_init(
 	case DCN_VERSION_3_0:
 #if defined(CONFIG_DRM_AMD_DC_DCN3_01)
 	case DCN_VERSION_3_01:
+#endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+	case DCN_VERSION_3_02:
 #endif
 		dal_hw_factory_dcn30_init(factory);
 		return true;

drivers/gpu/drm/amd/display/dc/gpio/hw_translate.c

@@ -111,6 +111,9 @@ bool dal_hw_translate_init(
 	case DCN_VERSION_3_0:
 #if defined(CONFIG_DRM_AMD_DC_DCN3_01)
 	case DCN_VERSION_3_01:
+#endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+	case DCN_VERSION_3_02:
 #endif
 		dal_hw_translate_dcn30_init(translate);
 		return true;

drivers/gpu/drm/amd/display/dc/irq/Makefile

@@ -104,3 +104,13 @@ AMD_DAL_IRQ_DCN3 = $(addprefix $(AMDDALPATH)/dc/irq/dcn30/,$(IRQ_DCN3))
 
 AMD_DISPLAY_FILES += $(AMD_DAL_IRQ_DCN3)
 endif
+ifdef CONFIG_DRM_AMD_DC_DCN3_02
+###############################################################################
+# DCN 3_02
+###############################################################################
+IRQ_DCN3_02 = irq_service_dcn302.o
+
+AMD_DAL_IRQ_DCN3_02 = $(addprefix $(AMDDALPATH)/dc/irq/dcn302/,$(IRQ_DCN3_02))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_IRQ_DCN3_02)
+endif

drivers/gpu/drm/amd/display/dc/irq/dcn302/irq_service_dcn302.h

+/*
+ * Copyright 2020 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
+ *
+ */
+
+#ifndef __DAL_IRQ_SERVICE_DCN302_H__
+#define __DAL_IRQ_SERVICE_DCN302_H__
+
+#include "../irq_service.h"
+
+struct irq_service *dal_irq_service_dcn302_create(struct irq_service_init_data *init_data);
+
+#endif /* __DAL_IRQ_SERVICE_DCN302_H__ */

drivers/gpu/drm/amd/display/dmub/dmub_srv.h

@@ -93,6 +93,9 @@ enum dmub_asic {
 #endif
 #ifdef CONFIG_DRM_AMD_DC_DCN3_01
 	DMUB_ASIC_DCN301,
+#endif
+#ifdef CONFIG_DRM_AMD_DC_DCN3_02
+	DMUB_ASIC_DCN302,
 #endif
 	DMUB_ASIC_MAX,
 };

drivers/gpu/drm/amd/display/dmub/src/Makefile

@@ -24,6 +24,9 @@ DMUB = dmub_srv.o dmub_reg.o dmub_dcn20.o dmub_dcn21.o
 ifdef CONFIG_DRM_AMD_DC_DCN3_0
 DMUB += dmub_dcn30.o dmub_dcn301.o
 endif
+ifdef CONFIG_DRM_AMD_DC_DCN3_02
+DMUB += dmub_dcn302.o
+endif
 
 AMD_DAL_DMUB = $(addprefix $(AMDDALPATH)/dmub/src/,$(DMUB))
 

drivers/gpu/drm/amd/display/dmub/src/dmub_dcn302.c

+/*
+ * Copyright 2020 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 "../dmub_srv.h"
+#include "dmub_reg.h"
+#include "dmub_dcn302.h"
+
+#include "dimgrey_cavefish_ip_offset.h"
+#include "dcn/dcn_3_0_0_offset.h"
+#include "dcn/dcn_3_0_0_sh_mask.h"
+
+#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
+#define CTX dmub
+#define REGS dmub->regs
+
+/* Registers. */
+
+const struct dmub_srv_common_regs dmub_srv_dcn302_regs = {
+#define DMUB_SR(reg) REG_OFFSET(reg),
+	{ DMUB_COMMON_REGS() },
+#undef DMUB_SR
+
+#define DMUB_SF(reg, field) FD_MASK(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+
+#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
+	{ DMUB_COMMON_FIELDS() },
+#undef DMUB_SF
+};
+
+/* Shared functions. */
+

drivers/gpu/drm/amd/display/dmub/src/dmub_dcn302.h

+/*
+ * Copyright 2020 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
+ *
+ */
+
+#ifndef _DMUB_DCN302_H_
+#define _DMUB_DCN302_H_
+
+#include "dmub_dcn20.h"
+
+/* Registers. */
+
+extern const struct dmub_srv_common_regs dmub_srv_dcn302_regs;
+
+/* Hardware functions. */
+
+#endif /* _DMUB_DCN302_H_ */

drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c

@@ -33,6 +33,9 @@
 #ifdef CONFIG_DRM_AMD_DC_DCN3_01
 #include "dmub_dcn301.h"
 #endif
+#ifdef CONFIG_DRM_AMD_DC_DCN3_02
+#include "dmub_dcn302.h"
+#endif
 #include "os_types.h"
 /*
  * Note: the DMUB service is standalone. No additional headers should be
@@ -144,6 +147,9 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic)
 #endif
 #ifdef CONFIG_DRM_AMD_DC_DCN3_01
 	case DMUB_ASIC_DCN301:
+#endif
+#ifdef CONFIG_DRM_AMD_DC_DCN3_02
+	case DMUB_ASIC_DCN302:
 #endif
 		dmub->regs = &dmub_srv_dcn20_regs;
 
@@ -183,6 +189,14 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic)
 			funcs->setup_windows = dmub_dcn30_setup_windows;
 		}
 #endif
+#ifdef CONFIG_DRM_AMD_DC_DCN3_02
+		if (asic == DMUB_ASIC_DCN302) {
+			dmub->regs = &dmub_srv_dcn302_regs;
+
+			funcs->backdoor_load = dmub_dcn30_backdoor_load;
+			funcs->setup_windows = dmub_dcn30_setup_windows;
+		}
+#endif
 		break;
 
 	default:

drivers/gpu/drm/amd/display/include/dal_asic_id.h

@@ -195,6 +195,7 @@ enum {
 	NV_NAVI12_P_A0      = 10,
 	NV_NAVI14_M_A0      = 20,
 	NV_SIENNA_CICHLID_P_A0      = 40,
+	NV_DIMGREY_CAVEFISH_P_A0      = 60,
 	NV_UNKNOWN          = 0xFF
 };
 
@@ -203,7 +204,10 @@ enum {
 #define ASICREV_IS_NAVI14_M(eChipRev)        ((eChipRev >= NV_NAVI14_M_A0) && (eChipRev < NV_UNKNOWN))
 #define ASICREV_IS_RENOIR(eChipRev) ((eChipRev >= RENOIR_A0) && (eChipRev < RAVEN1_F0))
 #if defined(CONFIG_DRM_AMD_DC_DCN3_0)
-#define ASICREV_IS_SIENNA_CICHLID_P(eChipRev)        ((eChipRev >= NV_SIENNA_CICHLID_P_A0))
+#define ASICREV_IS_SIENNA_CICHLID_P(eChipRev)        ((eChipRev >= NV_SIENNA_CICHLID_P_A0) && (eChipRev < NV_DIMGREY_CAVEFISH_P_A0))
+#endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+#define ASICREV_IS_DIMGREY_CAVEFISH_P(eChipRev)        ((eChipRev >= NV_DIMGREY_CAVEFISH_P_A0) && (eChipRev < NV_UNKNOWN))
 #endif
 #if defined(CONFIG_DRM_AMD_DC_DCN3_01)
 #define FAMILY_VGH 144

drivers/gpu/drm/amd/display/include/dal_types.h

@@ -56,6 +56,9 @@ enum dce_version {
 #endif
 #if defined(CONFIG_DRM_AMD_DC_DCN3_01)
 	DCN_VERSION_3_01,
+#endif
+#if defined(CONFIG_DRM_AMD_DC_DCN3_02)
+	DCN_VERSION_3_02,
 #endif
 	DCN_VERSION_MAX
 };