[PATCH 21/33] drm/amd/display: Fix HDCP 1.X 1A-04 failing

[Rodrigo Siqueira]

From: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>

[Why]
On some linux based OS, the hotplug->HDCP start takes longer than
4seconds (by ~100ms) This is due to the HDCP delay (3 sec) so we only
have 1 second to hotplug->stream enablement, which is not enough for
certain OS configs.

[How]
Change the Delay to 0 seconds. From testing it seems like 0 Seconds can
pass 1.x and 2.x compliances

Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
index 6202e31c7e3a..a7fd98f57f94 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -495,7 +495,7 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
 	link->dp.mst_enabled = config->mst_enabled;
 	link->dp.usb4_enabled = config->usb4_enabled;
 	display->adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION;
-	link->adjust.auth_delay = 3;
+	link->adjust.auth_delay = 0;
 	link->adjust.hdcp1.disable = 0;
 	conn_state = aconnector->base.state;
 
-- 
2.35.1