[PATCH 05/12] drm/amd/display: Not check wm and clk change flag in optimized bandwidth.

[Rodrigo Siqueira]

From: Yongqiang Sun <yongqiang.sun at amd.com>

[Why]
System isn't able to enter S0i3 due to not send display count 0 to smu.
When dpms off, clk changed flag is cleared alreay, and it is checked
when doing optimized bandwidth, and update clocks is bypassed due to the
flag is unset.

[How]
Remove check flag incide the function since watermark values and clocks
values are checked during update to determine whether to perform it, no
need to check it again outside the function.

Signed-off-by: Yongqiang Sun <yongqiang.sun at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c      |  4 +++
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 28 ++++++-------------
 .../drm/amd/display/dc/dcn20/dcn20_hwseq.c    | 26 +++++++----------
 3 files changed, 23 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 6dece1ee30bf..df285f57fe92 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1378,6 +1378,10 @@ bool dc_post_update_surfaces_to_stream(struct dc *dc)
 		}
 
 	dc->hwss.optimize_bandwidth(dc, context);
+
+	dc->clk_optimized_required = false;
+	dc->wm_optimized_required = false;
+
 	return true;
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 385250e1e3fd..21c7c1b010ec 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2717,30 +2717,20 @@ void dcn10_optimize_bandwidth(
 		hws->funcs.verify_allow_pstate_change_high(dc);
 
 	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (context->stream_count == 0) {
+		if (context->stream_count == 0)
 			context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
 
-			dc->clk_mgr->funcs->update_clocks(
-					dc->clk_mgr,
-					context,
-					true);
-		} else if (dc->clk_optimized_required || IS_DIAG_DC(dc->ctx->dce_environment)) {
-			dc->clk_mgr->funcs->update_clocks(
-								dc->clk_mgr,
-								context,
-								true);
-		}
-	}
-
-	if (dc->wm_optimized_required || IS_DIAG_DC(dc->ctx->dce_environment)) {
-		hubbub->funcs->program_watermarks(hubbub,
-				&context->bw_ctx.bw.dcn.watermarks,
-				dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000,
+		dc->clk_mgr->funcs->update_clocks(
+				dc->clk_mgr,
+				context,
 				true);
 	}
 
-	dc->clk_optimized_required = false;
-	dc->wm_optimized_required = false;
+	hubbub->funcs->program_watermarks(hubbub,
+			&context->bw_ctx.bw.dcn.watermarks,
+			dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000,
+			true);
+
 	dcn10_stereo_hw_frame_pack_wa(dc, context);
 
 	if (dc->debug.pplib_wm_report_mode == WM_REPORT_OVERRIDE)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index 045ba08c85b4..b0f61bd7c208 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1660,22 +1660,16 @@ void dcn20_optimize_bandwidth(
 {
 	struct hubbub *hubbub = dc->res_pool->hubbub;
 
-	if (dc->wm_optimized_required || IS_DIAG_DC(dc->ctx->dce_environment)) {
-		/* program dchubbub watermarks */
-		hubbub->funcs->program_watermarks(hubbub,
-						&context->bw_ctx.bw.dcn.watermarks,
-						dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000,
-						true);
-		dc->wm_optimized_required = false;
-	}
-
-	if (dc->clk_optimized_required || IS_DIAG_DC(dc->ctx->dce_environment)) {
-		dc->clk_mgr->funcs->update_clocks(
-				dc->clk_mgr,
-				context,
-				true);
-		dc->clk_optimized_required = false;
-	}
+	/* program dchubbub watermarks */
+	hubbub->funcs->program_watermarks(hubbub,
+					&context->bw_ctx.bw.dcn.watermarks,
+					dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000,
+					true);
+
+	dc->clk_mgr->funcs->update_clocks(
+			dc->clk_mgr,
+			context,
+			true);
 }
 
 bool dcn20_update_bandwidth(
-- 
2.25.1