From 47c02af751d168372d6ba3189799671eab606ef1 Mon Sep 17 00:00:00 2001
From: Lewis Huang <Lewis.Huang@amd.com>
Date: Fri, 9 Apr 2021 18:39:43 +0800
Subject: [PATCH] drm/amd/display: skip program clock when allow seamless boot
[Why]
Driver program dpp clock calculate by pipe split config but hw config is single pipe.
[How]
Skip programming clock when allow seamless boot.
After porgramming pipe config, seamless boot flag will be clear.
Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Wayne Lin <waynelin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index f4374d83662ae..931fbb4d61691 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1206,14 +1206,25 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason)
{
const struct dc *dc = link->dc;
bool ret;
+ bool can_apply_seamless_boot = false;
+ int i;
+
+ for (i = 0; i < dc->current_state->stream_count; i++) {
+ if (dc->current_state->streams[i]->apply_seamless_boot_optimization) {
+ can_apply_seamless_boot = true;
+ break;
+ }
+ }
/* get out of low power state */
- clk_mgr_exit_optimized_pwr_state(dc, dc->clk_mgr);
+ if (!can_apply_seamless_boot && reason != DETECT_REASON_BOOT)
+ clk_mgr_exit_optimized_pwr_state(dc, dc->clk_mgr);
ret = dc_link_detect_helper(link, reason);
/* Go back to power optimized state */
- clk_mgr_optimize_pwr_state(dc, dc->clk_mgr);
+ if (!can_apply_seamless_boot && reason != DETECT_REASON_BOOT)
+ clk_mgr_optimize_pwr_state(dc, dc->clk_mgr);
return ret;
}
--
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