drm/amd/display: When blanking during init loop to find OPP index

[Description]
For pipe harvesting cases we cannot rely on array index
to get the correct OPP instance, we must loop through
each instance to find the correct one.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c

@@ -1413,3 +1413,86 @@ void dcn32_enable_phantom_streams(struct dc *dc, struct dc_state *context)
 		}
 	}
 }
+
+/* Blank pixel data during initialization */
+void dcn32_init_blank(
+		struct dc *dc,
+		struct timing_generator *tg)
+{
+	struct dce_hwseq *hws = dc->hwseq;
+	enum dc_color_space color_space;
+	struct tg_color black_color = {0};
+	struct output_pixel_processor *opp = NULL;
+	struct output_pixel_processor *bottom_opp = NULL;
+	uint32_t num_opps, opp_id_src0, opp_id_src1;
+	uint32_t otg_active_width, otg_active_height;
+	uint32_t i;
+
+	/* program opp dpg blank color */
+	color_space = COLOR_SPACE_SRGB;
+	color_space_to_black_color(dc, color_space, &black_color);
+
+	/* get the OTG active size */
+	tg->funcs->get_otg_active_size(tg,
+			&otg_active_width,
+			&otg_active_height);
+
+	/* get the OPTC source */
+	tg->funcs->get_optc_source(tg, &num_opps, &opp_id_src0, &opp_id_src1);
+
+	if (opp_id_src0 >= dc->res_pool->res_cap->num_opp) {
+		ASSERT(false);
+		return;
+	}
+
+	for (i = 0; i < dc->res_pool->res_cap->num_opp; i++) {
+		if (dc->res_pool->opps[i] != NULL && dc->res_pool->opps[i]->inst == opp_id_src0) {
+			opp = dc->res_pool->opps[i];
+			break;
+		}
+	}
+
+	if (num_opps == 2) {
+		otg_active_width = otg_active_width / 2;
+
+		if (opp_id_src1 >= dc->res_pool->res_cap->num_opp) {
+			ASSERT(false);
+			return;
+		}
+		for (i = 0; i < dc->res_pool->res_cap->num_opp; i++) {
+			if (dc->res_pool->opps[i] != NULL && dc->res_pool->opps[i]->inst == opp_id_src1) {
+				bottom_opp = dc->res_pool->opps[i];
+				break;
+			}
+		}
+	}
+
+	if (opp && opp->funcs->opp_set_disp_pattern_generator)
+		opp->funcs->opp_set_disp_pattern_generator(
+				opp,
+				CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR,
+				CONTROLLER_DP_COLOR_SPACE_UDEFINED,
+				COLOR_DEPTH_UNDEFINED,
+				&black_color,
+				otg_active_width,
+				otg_active_height,
+				0);
+
+	if (num_opps == 2) {
+		if (bottom_opp && bottom_opp->funcs->opp_set_disp_pattern_generator) {
+			bottom_opp->funcs->opp_set_disp_pattern_generator(
+					bottom_opp,
+					CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR,
+					CONTROLLER_DP_COLOR_SPACE_UDEFINED,
+					COLOR_DEPTH_UNDEFINED,
+					&black_color,
+					otg_active_width,
+					otg_active_height,
+					0);
+			hws->funcs.wait_for_blank_complete(bottom_opp);
+		}
+	}
+
+	if (opp)
+		hws->funcs.wait_for_blank_complete(opp);
+}

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h

@@ -104,4 +104,8 @@ void dcn32_update_dsc_pg(struct dc *dc,
 
 void dcn32_enable_phantom_streams(struct dc *dc, struct dc_state *context);
 
+void dcn32_init_blank(
+		struct dc *dc,
+		struct timing_generator *tg);
+
 #endif /* __DC_HWSS_DCN32_H__ */

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c

@@ -132,7 +132,7 @@ static const struct hwseq_private_funcs dcn32_private_funcs = {
 	.enable_stream_gating = dcn20_enable_stream_gating,
 	.setup_vupdate_interrupt = dcn20_setup_vupdate_interrupt,
 	.did_underflow_occur = dcn10_did_underflow_occur,
-	.init_blank = dcn20_init_blank,
+	.init_blank = dcn32_init_blank,
 	.disable_vga = dcn20_disable_vga,
 	.bios_golden_init = dcn10_bios_golden_init,
 	.plane_atomic_disable = dcn20_plane_atomic_disable,