1 files changed, 2 insertions, 59 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/link/link_validation.c b/drivers/gpu/drm/amd/display/dc/link/link_validation.c
index 5b88a1c48dac..aecaf37eee35 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_validation.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_validation.c
@@ -367,65 +367,6 @@ enum dc_status link_validate_mode_timing(
 	return DC_OK;
 }
 
-/*
- * This function calculates the bandwidth required for the stream timing
- * and aggregates the stream bandwidth for the respective dpia link
- *
- * @stream: pointer to the dc_stream_state struct instance
- * @num_streams: number of streams to be validated
- *
- * return: true if validation is succeeded
- */
-bool link_validate_dpia_bandwidth(const struct dc_stream_state *stream, const unsigned int num_streams)
-{
-	int bw_needed[MAX_DPIA_NUM] = {0};
-	struct dc_link *dpia_link[MAX_DPIA_NUM] = {0};
-	int num_dpias = 0;
-
-	for (unsigned int i = 0; i < num_streams; ++i) {
-		if (stream[i].signal == SIGNAL_TYPE_DISPLAY_PORT) {
-			/* new dpia sst stream, check whether it exceeds max dpia */
-			if (num_dpias >= MAX_DPIA_NUM)
-				return false;
-
-			dpia_link[num_dpias] = stream[i].link;
-			bw_needed[num_dpias] = dc_bandwidth_in_kbps_from_timing(&stream[i].timing,
-					dc_link_get_highest_encoding_format(dpia_link[num_dpias]));
-			num_dpias++;
-		} else if (stream[i].signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
-			uint8_t j = 0;
-			/* check whether its a known dpia link */
-			for (; j < num_dpias; ++j) {
-				if (dpia_link[j] == stream[i].link)
-					break;
-			}
-
-			if (j == num_dpias) {
-				/* new dpia mst stream, check whether it exceeds max dpia */
-				if (num_dpias >= MAX_DPIA_NUM)
-					return false;
-				else {
-					dpia_link[j] = stream[i].link;
-					num_dpias++;
-				}
-			}
-
-			bw_needed[j] += dc_bandwidth_in_kbps_from_timing(&stream[i].timing,
-				dc_link_get_highest_encoding_format(dpia_link[j]));
-		}
-	}
-
-	/* Include dp overheads */
-	for (uint8_t i = 0; i < num_dpias; ++i) {
-		int dp_overhead = 0;
-
-		dp_overhead = link_dpia_get_dp_mst_overhead(dpia_link[i]);
-		bw_needed[i] += dp_overhead;
-	}
-
-	return dpia_validate_usb4_bw(dpia_link, bw_needed, num_dpias);
-}
-
 static const struct dc_tunnel_settings *get_dp_tunnel_settings(const struct dc_state *context,
 		const struct dc_stream_state *stream)
 {
@@ -454,6 +395,7 @@ enum dc_status link_validate_dp_tunnel_bandwidth(const struct dc *dc, const stru
 	uint8_t link_count = 0;
 	enum dc_status result = DC_OK;
 
+	// Iterate through streams in the new context
 	for (uint8_t i = 0; (i < MAX_PIPES && i < new_ctx->stream_count); i++) {
 		const struct dc_stream_state *stream = new_ctx->streams[i];
 		const struct dc_link *link;
@@ -477,6 +419,7 @@ enum dc_status link_validate_dp_tunnel_bandwidth(const struct dc *dc, const stru
 
 		timing_bw = dp_get_timing_bandwidth_kbps(&stream->timing, link);
 
+		// Find an existing entry for this 'link' in 'dpia_link_sets'
 		for (uint8_t j = 0; j < MAX_DPIA_NUM; j++) {
 			bool is_new_slot = false;