Merge remote-tracking branch 'drm/drm-next'

[linux] / drivers / gpu / drm / amd / display / dc / dce / dce_clk_mgr.c

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c
index 3c52a4f..bbe0517 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c
@@ -627,7 +627,15 @@ static void dce11_pplib_apply_display_requirements(
                        dc,
                        context->bw.dce.sclk_khz);
 
-       pp_display_cfg->min_dcfclock_khz = pp_display_cfg->min_engine_clock_khz;
+       /*
+        * As workaround for >4x4K lightup set dcfclock to min_engine_clock value.
+        * This is not required for less than 5 displays,
+        * thus don't request decfclk in dc to avoid impact
+        * on power saving.
+        *
+        */
+       pp_display_cfg->min_dcfclock_khz = (context->stream_count > 4)?
+                       pp_display_cfg->min_engine_clock_khz : 0;
 
        pp_display_cfg->min_engine_clock_deep_sleep_khz
                        = context->bw.dce.sclk_deep_sleep_khz;