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

BugLink: https://bugs.launchpad.net/bugs/2075154

commit f2703a3 upstream.

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

This reverts commit f30a3be ("drm/amd/display: Exit idle
optimizations before HDCP execution")

Cc: Mario Limonciello <[email protected]>
Cc: Alex Deucher <[email protected]>
Reviewed-by: Nicholas Kazlauskas <[email protected]>
Acked-by: Wayne Lin <[email protected]>
Signed-off-by: Martin Leung <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Manuel Diewald <[email protected]>
Signed-off-by: Stefan Bader <[email protected]>

Author: leungmartin

drivers/gpu/drm/amd/display/modules/hdcp/hdcp.c

@@ -88,14 +88,6 @@ static uint8_t is_cp_desired_hdcp2(struct mod_hdcp *hdcp)
 			!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_event(struct mod_hdcp *hdcp,
 	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(

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;
 };