drm/amd/display: Add DCN3.1 BIOS parser support

Updated interfaces for multiple eDP backlight caps.
Added support for interpreting the new BIOS command tables on DCN3.1.
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c

@@ -576,6 +576,13 @@ static struct device_id device_type_from_device_id(uint16_t device_id)
 		result_device_id.device_type = DEVICE_TYPE_LCD;
 		result_device_id.enum_id = 1;
 		break;
+#if defined(CONFIG_DRM_AMD_DC_DCN3_1)
+
+	case ATOM_DISPLAY_LCD2_SUPPORT:
+		result_device_id.device_type = DEVICE_TYPE_LCD;
+		result_device_id.enum_id = 2;
+		break;
+#endif
 
 	case ATOM_DISPLAY_DFP1_SUPPORT:
 		result_device_id.device_type = DEVICE_TYPE_DFP;
@@ -2155,6 +2162,107 @@ static enum bp_result get_integrated_info_v2_1(
 	return BP_RESULT_OK;
 }
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_1)
+static enum bp_result get_integrated_info_v2_2(
+	struct bios_parser *bp,
+	struct integrated_info *info)
+{
+	struct atom_integrated_system_info_v2_2 *info_v2_2;
+	uint32_t i;
+
+	info_v2_2 = GET_IMAGE(struct atom_integrated_system_info_v2_2,
+					DATA_TABLES(integratedsysteminfo));
+
+	if (info_v2_2 == NULL)
+		return BP_RESULT_BADBIOSTABLE;
+
+	info->gpu_cap_info =
+	le32_to_cpu(info_v2_2->gpucapinfo);
+	/*
+	* system_config: Bit[0] = 0 : PCIE power gating disabled
+	*                       = 1 : PCIE power gating enabled
+	*                Bit[1] = 0 : DDR-PLL shut down disabled
+	*                       = 1 : DDR-PLL shut down enabled
+	*                Bit[2] = 0 : DDR-PLL power down disabled
+	*                       = 1 : DDR-PLL power down enabled
+	*/
+	info->system_config = le32_to_cpu(info_v2_2->system_config);
+	info->cpu_cap_info = le32_to_cpu(info_v2_2->cpucapinfo);
+	info->memory_type = info_v2_2->memorytype;
+	info->ma_channel_number = info_v2_2->umachannelnumber;
+	info->dp_ss_control =
+		le16_to_cpu(info_v2_2->reserved1);
+
+	for (i = 0; i < NUMBER_OF_UCHAR_FOR_GUID; ++i) {
+		info->ext_disp_conn_info.gu_id[i] =
+				info_v2_2->extdispconninfo.guid[i];
+	}
+
+	for (i = 0; i < MAX_NUMBER_OF_EXT_DISPLAY_PATH; ++i) {
+		info->ext_disp_conn_info.path[i].device_connector_id =
+		object_id_from_bios_object_id(
+		le16_to_cpu(info_v2_2->extdispconninfo.path[i].connectorobjid));
+
+		info->ext_disp_conn_info.path[i].ext_encoder_obj_id =
+		object_id_from_bios_object_id(
+			le16_to_cpu(
+			info_v2_2->extdispconninfo.path[i].ext_encoder_objid));
+
+		info->ext_disp_conn_info.path[i].device_tag =
+			le16_to_cpu(
+				info_v2_2->extdispconninfo.path[i].device_tag);
+		info->ext_disp_conn_info.path[i].device_acpi_enum =
+		le16_to_cpu(
+			info_v2_2->extdispconninfo.path[i].device_acpi_enum);
+		info->ext_disp_conn_info.path[i].ext_aux_ddc_lut_index =
+			info_v2_2->extdispconninfo.path[i].auxddclut_index;
+		info->ext_disp_conn_info.path[i].ext_hpd_pin_lut_index =
+			info_v2_2->extdispconninfo.path[i].hpdlut_index;
+		info->ext_disp_conn_info.path[i].channel_mapping.raw =
+			info_v2_2->extdispconninfo.path[i].channelmapping;
+		info->ext_disp_conn_info.path[i].caps =
+				le16_to_cpu(info_v2_2->extdispconninfo.path[i].caps);
+	}
+
+	info->ext_disp_conn_info.checksum =
+		info_v2_2->extdispconninfo.checksum;
+
+	info->edp1_info.edp_backlight_pwm_hz =
+	le16_to_cpu(info_v2_2->edp1_info.edp_backlight_pwm_hz);
+	info->edp1_info.edp_ss_percentage =
+	le16_to_cpu(info_v2_2->edp1_info.edp_ss_percentage);
+	info->edp1_info.edp_ss_rate_10hz =
+	le16_to_cpu(info_v2_2->edp1_info.edp_ss_rate_10hz);
+	info->edp1_info.edp_pwr_on_off_delay =
+		info_v2_2->edp1_info.edp_pwr_on_off_delay;
+	info->edp1_info.edp_pwr_on_vary_bl_to_blon =
+		info_v2_2->edp1_info.edp_pwr_on_vary_bl_to_blon;
+	info->edp1_info.edp_pwr_down_bloff_to_vary_bloff =
+		info_v2_2->edp1_info.edp_pwr_down_bloff_to_vary_bloff;
+	info->edp1_info.edp_panel_bpc =
+		info_v2_2->edp1_info.edp_panel_bpc;
+	info->edp1_info.edp_bootup_bl_level =
+
+	info->edp2_info.edp_backlight_pwm_hz =
+	le16_to_cpu(info_v2_2->edp2_info.edp_backlight_pwm_hz);
+	info->edp2_info.edp_ss_percentage =
+	le16_to_cpu(info_v2_2->edp2_info.edp_ss_percentage);
+	info->edp2_info.edp_ss_rate_10hz =
+	le16_to_cpu(info_v2_2->edp2_info.edp_ss_rate_10hz);
+	info->edp2_info.edp_pwr_on_off_delay =
+		info_v2_2->edp2_info.edp_pwr_on_off_delay;
+	info->edp2_info.edp_pwr_on_vary_bl_to_blon =
+		info_v2_2->edp2_info.edp_pwr_on_vary_bl_to_blon;
+	info->edp2_info.edp_pwr_down_bloff_to_vary_bloff =
+		info_v2_2->edp2_info.edp_pwr_down_bloff_to_vary_bloff;
+	info->edp2_info.edp_panel_bpc =
+		info_v2_2->edp2_info.edp_panel_bpc;
+	info->edp2_info.edp_bootup_bl_level =
+		info_v2_2->edp2_info.edp_bootup_bl_level;
+
+	return BP_RESULT_OK;
+}
+#endif
 /*
  * construct_integrated_info
  *
@@ -2202,6 +2310,11 @@ static enum bp_result construct_integrated_info(
 			case 1:
 				result = get_integrated_info_v2_1(bp, info);
 				break;
+#if defined(CONFIG_DRM_AMD_DC_DCN3_1)
+			case 2:
+				result = get_integrated_info_v2_2(bp, info);
+				break;
+#endif
 			default:
 				return result;
 			}

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

@@ -72,6 +72,11 @@ bool dal_bios_parser_init_cmd_tbl_helper2(
 	case DCN_VERSION_2_1:
 	case DCN_VERSION_3_0:
 	case DCN_VERSION_3_01:
+#if defined(CONFIG_DRM_AMD_DC_DCN3_1)
+	case DCN_VERSION_3_1:
+		*h = dal_cmd_tbl_helper_dce112_get_table2();
+		return true;
+#endif
 	case DCN_VERSION_3_02:
 	case DCN_VERSION_3_03:
 		*h = dal_cmd_tbl_helper_dce112_get_table2();