drm/amd/display: Check minimum disp_clk and dpp_clk debug option

Our debug struct has the min_disp_clk_khz and min_dpp_clk_khz options,
which we ignore in the DCN32. This commit introduces those checks and
the necessary calculation.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c

@@ -265,6 +265,25 @@ void dcn32_init_clocks(struct clk_mgr *clk_mgr_base)
 			&clk_mgr_base->bw_params->clk_table.entries[0].dispclk_mhz,
 			&num_levels);
 
+	if (clk_mgr_base->ctx->dc->debug.min_disp_clk_khz) {
+		unsigned int i;
+
+		for (i = 0; i < num_levels; i++)
+			if (clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz
+					< khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_disp_clk_khz))
+				clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz
+					= khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_disp_clk_khz);
+	}
+
+	if (clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz) {
+		unsigned int i;
+
+		for (i = 0; i < num_levels; i++)
+			if (clk_mgr_base->bw_params->clk_table.entries[i].dppclk_mhz
+					< khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz))
+				clk_mgr_base->bw_params->clk_table.entries[i].dppclk_mhz
+					= khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz);
+	}
 
 	/* Get UCLK, update bounding box */
 	clk_mgr_base->funcs->get_memclk_states_from_smu(clk_mgr_base);