drm/amd/display: revert Exit idle optimizations before HDCP execution

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From: Martin Leung <martin.leung@xxxxxxx>

commit f2703a3596a279b0be6eeed4c500bdbaa8dc3ce4 upstream.

why and how:
causes black screen on PNP on DCN 3.5

This reverts commit f30a3bea92bd ("drm/amd/display: Exit idle
optimizations before HDCP execution")

Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Acked-by: Wayne Lin <wayne.lin@xxxxxxx>
Signed-off-by: Martin Leung <martin.leung@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c    |   10 ----------
 drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h |    8 --------
 2 files changed, 18 deletions(-)

--- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c
+++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c
@@ -88,14 +88,6 @@ static uint8_t is_cp_desired_hdcp2(struc
 			!hdcp->connection.is_hdcp2_revoked;
 }
 
-static void exit_idle_optimizations(struct mod_hdcp *hdcp)
-{
-	struct mod_hdcp_dm *dm = &hdcp->config.dm;
-
-	if (dm->funcs.exit_idle_optimizations)
-		dm->funcs.exit_idle_optimizations(dm->handle);
-}
-
 static enum mod_hdcp_status execution(struct mod_hdcp *hdcp,
 		struct mod_hdcp_event_context *event_ctx,
 		union mod_hdcp_transition_input *input)
@@ -551,8 +543,6 @@ enum mod_hdcp_status mod_hdcp_process_ev
 	memset(&event_ctx, 0, sizeof(struct mod_hdcp_event_context));
 	event_ctx.event = event;
 
-	exit_idle_optimizations(hdcp);
-
 	/* execute and transition */
 	exec_status = execution(hdcp, &event_ctx, &hdcp->auth.trans_input);
 	trans_status = transition(
--- a/drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h
+++ b/drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h
@@ -156,13 +156,6 @@ struct mod_hdcp_ddc {
 	} funcs;
 };
 
-struct mod_hdcp_dm {
-	void *handle;
-	struct {
-		void (*exit_idle_optimizations)(void *handle);
-	} funcs;
-};
-
 struct mod_hdcp_psp {
 	void *handle;
 	void *funcs;
@@ -279,7 +272,6 @@ struct mod_hdcp_display_query {
 struct mod_hdcp_config {
 	struct mod_hdcp_psp psp;
 	struct mod_hdcp_ddc ddc;
-	struct mod_hdcp_dm dm;
 	uint8_t index;
 };
 


Patches currently in stable-queue which might be from martin.leung@xxxxxxx are

queue-6.9/drm-amd-display-revert-exit-idle-optimizations-before-hdcp-execution.patch




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