diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
index aadd07bc68c5d..8fa0aae941c36 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
@@ -387,7 +387,15 @@ static void dcn32_update_clocks_update_dentist(
 		uint32_t temp_dispclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR * clk_mgr->base.dentist_vco_freq_khz) / temp_disp_divider;
 
 		if (clk_mgr->smu_present)
-			dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, khz_to_mhz_ceil(temp_dispclk_khz));
+			/*
+			 * SMU uses discrete dispclk presets. We applied
+			 * the same formula to increase our dppclk_khz
+			 * to the next matching discrete value. By
+			 * contract, we should use the preset dispclk
+			 * floored in Mhz to describe the intended clock.
+			 */
+			dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK,
+					khz_to_mhz_floor(temp_dispclk_khz));
 
 		if (dc->debug.override_dispclk_programming) {
 			REG_GET(DENTIST_DISPCLK_CNTL,
@@ -426,7 +434,15 @@ static void dcn32_update_clocks_update_dentist(
 
 	/* do requested DISPCLK updates*/
 	if (clk_mgr->smu_present)
-		dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, khz_to_mhz_ceil(clk_mgr->base.clks.dispclk_khz));
+		/*
+		 * SMU uses discrete dispclk presets. We applied
+		 * the same formula to increase our dppclk_khz
+		 * to the next matching discrete value. By
+		 * contract, we should use the preset dispclk
+		 * floored in Mhz to describe the intended clock.
+		 */
+		dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK,
+				khz_to_mhz_floor(clk_mgr->base.clks.dispclk_khz));
 
 	if (dc->debug.override_dispclk_programming) {
 		REG_GET(DENTIST_DISPCLK_CNTL,
@@ -734,7 +750,15 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base,
 		clk_mgr_base->clks.dppclk_khz = new_clocks->dppclk_khz;
 
 		if (clk_mgr->smu_present && !dpp_clock_lowered)
-			dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dppclk_khz));
+			/*
+			 * SMU uses discrete dppclk presets. We applied
+			 * the same formula to increase our dppclk_khz
+			 * to the next matching discrete value. By
+			 * contract, we should use the preset dppclk
+			 * floored in Mhz to describe the intended clock.
+			 */
+			dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK,
+					khz_to_mhz_floor(clk_mgr_base->clks.dppclk_khz));
 
 		update_dppclk = true;
 	}
@@ -765,7 +789,15 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base,
 			dcn32_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower);
 			dcn32_update_clocks_update_dentist(clk_mgr, context);
 			if (clk_mgr->smu_present)
-				dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dppclk_khz));
+				/*
+				 * SMU uses discrete dppclk presets. We applied
+				 * the same formula to increase our dppclk_khz
+				 * to the next matching discrete value. By
+				 * contract, we should use the preset dppclk
+				 * floored in Mhz to describe the intended clock.
+				 */
+				dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK,
+						khz_to_mhz_floor(clk_mgr_base->clks.dppclk_khz));
 		} else {
 			/* if clock is being raised, increase refclk before lowering DTO */
 			if (update_dppclk || update_dispclk)
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h
index 6f4c97543c145..e668cc21cd289 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h
@@ -393,6 +393,11 @@ static inline int khz_to_mhz_ceil(int khz)
 	return (khz + 999) / 1000;
 }
 
+static inline int khz_to_mhz_floor(int khz)
+{
+	return khz / 1000;
+}
+
 int clk_mgr_helper_get_active_display_cnt(
 		struct dc *dc,
 		struct dc_state *context);