diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c
index 19564c1afba6..a697cc227e28 100644
--- a/drivers/gpu/drm/display/drm_dp_helper.c
+++ b/drivers/gpu/drm/display/drm_dp_helper.c
@@ -2704,6 +2704,71 @@ u8 drm_dp_dsc_sink_bpp_incr(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
 }
 EXPORT_SYMBOL(drm_dp_dsc_sink_bpp_incr);
 
+/**
+ * drm_dp_dsc_slice_count_to_mask() - Convert a slice count to a slice count mask
+ * @slice_count: slice count
+ *
+ * Convert @slice_count to a slice count mask.
+ *
+ * Returns the slice count mask.
+ */
+u32 drm_dp_dsc_slice_count_to_mask(int slice_count)
+{
+	return BIT(slice_count - 1);
+}
+EXPORT_SYMBOL(drm_dp_dsc_slice_count_to_mask);
+
+/**
+ * drm_dp_dsc_sink_slice_count_mask() - Get the mask of valid DSC sink slice counts
+ * @dsc_dpcd: the sink's DSC DPCD capabilities
+ * @is_edp: %true for an eDP sink
+ *
+ * Get the mask of supported slice counts from the sink's DSC DPCD register.
+ *
+ * Returns:
+ * Mask of slice counts supported by the DSC sink:
+ * - > 0: bit#0,1,3,5..,23 set if the sink supports 1,2,4,6..,24 slices
+ * - 0:   if the sink doesn't support any slices
+ */
+u32 drm_dp_dsc_sink_slice_count_mask(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
+				     bool is_edp)
+{
+	u8 slice_cap1 = dsc_dpcd[DP_DSC_SLICE_CAP_1 - DP_DSC_SUPPORT];
+	u32 mask = 0;
+
+	if (!is_edp) {
+		/* For DP, use values from DSC_SLICE_CAP_1 and DSC_SLICE_CAP2 */
+		u8 slice_cap2 = dsc_dpcd[DP_DSC_SLICE_CAP_2 - DP_DSC_SUPPORT];
+
+		if (slice_cap2 & DP_DSC_24_PER_DP_DSC_SINK)
+			mask |= drm_dp_dsc_slice_count_to_mask(24);
+		if (slice_cap2 & DP_DSC_20_PER_DP_DSC_SINK)
+			mask |= drm_dp_dsc_slice_count_to_mask(20);
+		if (slice_cap2 & DP_DSC_16_PER_DP_DSC_SINK)
+			mask |= drm_dp_dsc_slice_count_to_mask(16);
+	}
+
+	/* DP, eDP v1.5+ */
+	if (slice_cap1 & DP_DSC_12_PER_DP_DSC_SINK)
+		mask |= drm_dp_dsc_slice_count_to_mask(12);
+	if (slice_cap1 & DP_DSC_10_PER_DP_DSC_SINK)
+		mask |= drm_dp_dsc_slice_count_to_mask(10);
+	if (slice_cap1 & DP_DSC_8_PER_DP_DSC_SINK)
+		mask |= drm_dp_dsc_slice_count_to_mask(8);
+	if (slice_cap1 & DP_DSC_6_PER_DP_DSC_SINK)
+		mask |= drm_dp_dsc_slice_count_to_mask(6);
+	/* DP, eDP v1.4+ */
+	if (slice_cap1 & DP_DSC_4_PER_DP_DSC_SINK)
+		mask |= drm_dp_dsc_slice_count_to_mask(4);
+	if (slice_cap1 & DP_DSC_2_PER_DP_DSC_SINK)
+		mask |= drm_dp_dsc_slice_count_to_mask(2);
+	if (slice_cap1 & DP_DSC_1_PER_DP_DSC_SINK)
+		mask |= drm_dp_dsc_slice_count_to_mask(1);
+
+	return mask;
+}
+EXPORT_SYMBOL(drm_dp_dsc_sink_slice_count_mask);
+
 /**
  * drm_dp_dsc_sink_max_slice_count() - Get the max slice count
  * supported by the DSC sink.
@@ -2723,38 +2788,7 @@ EXPORT_SYMBOL(drm_dp_dsc_sink_bpp_incr);
 u8 drm_dp_dsc_sink_max_slice_count(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
 				   bool is_edp)
 {
-	u8 slice_cap1 = dsc_dpcd[DP_DSC_SLICE_CAP_1 - DP_DSC_SUPPORT];
-
-	if (!is_edp) {
-		/* For DP, use values from DSC_SLICE_CAP_1 and DSC_SLICE_CAP2 */
-		u8 slice_cap2 = dsc_dpcd[DP_DSC_SLICE_CAP_2 - DP_DSC_SUPPORT];
-
-		if (slice_cap2 & DP_DSC_24_PER_DP_DSC_SINK)
-			return 24;
-		if (slice_cap2 & DP_DSC_20_PER_DP_DSC_SINK)
-			return 20;
-		if (slice_cap2 & DP_DSC_16_PER_DP_DSC_SINK)
-			return 16;
-	}
-
-	/* DP, eDP v1.5+ */
-	if (slice_cap1 & DP_DSC_12_PER_DP_DSC_SINK)
-		return 12;
-	if (slice_cap1 & DP_DSC_10_PER_DP_DSC_SINK)
-		return 10;
-	if (slice_cap1 & DP_DSC_8_PER_DP_DSC_SINK)
-		return 8;
-	if (slice_cap1 & DP_DSC_6_PER_DP_DSC_SINK)
-		return 6;
-	/* DP, eDP v1.4+ */
-	if (slice_cap1 & DP_DSC_4_PER_DP_DSC_SINK)
-		return 4;
-	if (slice_cap1 & DP_DSC_2_PER_DP_DSC_SINK)
-		return 2;
-	if (slice_cap1 & DP_DSC_1_PER_DP_DSC_SINK)
-		return 1;
-
-	return 0;
+	return fls(drm_dp_dsc_sink_slice_count_mask(dsc_dpcd, is_edp));
 }
 EXPORT_SYMBOL(drm_dp_dsc_sink_max_slice_count);
 
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index df2f24b950e4..85e868238e28 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -206,6 +206,9 @@ drm_dp_is_branch(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
 
 /* DP/eDP DSC support */
 u8 drm_dp_dsc_sink_bpp_incr(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]);
+u32 drm_dp_dsc_slice_count_to_mask(int slice_count);
+u32 drm_dp_dsc_sink_slice_count_mask(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
+				     bool is_edp);
 u8 drm_dp_dsc_sink_max_slice_count(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE],
 				   bool is_edp);
 u8 drm_dp_dsc_sink_line_buf_depth(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]);