[PATCH] drm/amd/display: Fix wrong plane index in dcn6 writeback latency loop

[yaolu]

From: Lu Yao <ya...@kylinos.cn>

Use plane_descriptors[k] for the loop bound, matching the loop body.

Fixes: 7f7d7ea1fa51 ("drm/amd/display: Add new sources for DCN6")
Signed-off-by: Lu Yao <ya...@kylinos.cn>
---
 .../dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn6_calcs_dchub.c  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn6_calcs_dchub.c
 
b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn6_calcs_dchub.c
index a4e2f8604650..60e873edf13c 100644
--- 
a/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn6_calcs_dchub.c
+++ 
b/drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn6_calcs_dchub.c
@@ -1252,7 +1252,7 @@ void 
dcn6_calculate_watermarks_and_dram_speed_change_support(
                        DML_LOG_VERBOSE("DML::%s: k=%u, VActiveLatencyHidingUs 
= %f\n", __func__, k, p->VActiveLatencyHidingUs[k]);
                }
 
-               for (unsigned int j = 0; j < 
p->display_cfg->stream_descriptors[p->display_cfg->plane_descriptors[j].stream_index].writeback.active_writebacks_per_stream;
 ++j) {
+               for (unsigned int j = 0; j < 
p->display_cfg->stream_descriptors[p->display_cfg->plane_descriptors[k].stream_index].writeback.active_writebacks_per_stream;
 ++j) {
                        double byte_per_pixel_luma_in_buffer = 1.0;
                        double buffer_for_luma = 
(double)p->WritebackInterfaceBufferSize * 1024.0 / 2.0;
                        if 
(p->display_cfg->stream_descriptors[p->display_cfg->plane_descriptors[k].stream_index].writeback.writeback_stream[j].pixel_format
 == dml2_444_64) {
-- 
2.25.1