From 25331a18f45cdc9d872c3badd1de93c6f0f4fe64 Mon Sep 17 00:00:00 2001
From: John Wu <john.wu@amd.com>
Date: Mon, 23 Nov 2020 15:49:15 +0800
Subject: [PATCH] drm/amd/display: Don't check seamless boot in power down HW
by timeout
[Why]
power_down_on_boot is designed to power down HW when set mode is not
called before timeout. It can happen in headless system or booting with
the display is output by non-AMD GPU only.
The function will be executed only if it's not seamless boot. So in
seamless boot, the HW is still on.
It's not necessary to check this since there's no display data in both
cases.
[How]
Remove seamless boot checking in power_down_on_boot.
Signed-off-by: John Wu <john.wu@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
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 1e18f0bb40b67..9f7d6b0875539 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
@@ -1442,16 +1442,13 @@ void dcn10_init_hw(struct dc *dc)
/* In headless boot cases, DIG may be turned
* on which causes HW/SW discrepancies.
* To avoid this, power down hardware on boot
- * if DIG is turned on and seamless boot not enabled
+ * if DIG is turned on
*/
void dcn10_power_down_on_boot(struct dc *dc)
{
int i = 0;
struct dc_link *edp_link;
- if (!dc->config.power_down_display_on_boot)
- return;
-
edp_link = get_edp_link(dc);
if (edp_link &&
edp_link->link_enc->funcs->is_dig_enabled &&
--
2.30.2