drm/amd/display: Revert "drm/amd/display: Add flag to detect dpms force off during HPD"

This reverts commit 035f5496.

The reverted commit was trying to fix side effect brought by
commit 3c4d55c9 ("drm/amd/display: turn DPMS off on connector unplug")

However,
* This reverted commit will have mst case never call dm_set_dpms_off()
  which conflicts the idea of original commit 3c4d55c9 ("drm/amd/display: turn DPMS off on connector unplug")
  That's due to dm_crtc_state is always null since the input parameter
  aconnector is the root device (source) of mst topology.  It's not an
  end stream sink within the mst topology.
* Setting dpms off should be triggered by usermode. Besdies, it seems
  usermode does release relevant resource for mst & non-mst case when
  unplug connecotr now. Which means we no longer need both commits now:
  commit 3c4d55c9 ("drm/amd/display: turn DPMS off on connector unplug")
  commit 035f5496 ("drm/amd/display: Add flag to detect dpms force off during HPD")
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -2583,7 +2583,7 @@ static void dm_gpureset_commit_state(struct dc_state *dc_state,
 	return;
 }
 
-static void dm_set_dpms_off(struct dc_link *link, struct dm_crtc_state *acrtc_state)
+static void dm_set_dpms_off(struct dc_link *link)
 {
 	struct dc_stream_state *stream_state;
 	struct amdgpu_dm_connector *aconnector = link->priv;
@@ -2604,7 +2604,6 @@ static void dm_set_dpms_off(struct dc_link *link, struct dm_crtc_state *acrtc_st
 	}
 
 	stream_update.stream = stream_state;
-	acrtc_state->force_dpms_off = true;
 	dc_commit_updates_for_stream(stream_state->ctx->dc, NULL, 0,
 				     stream_state, &stream_update,
 				     stream_state->ctx->dc->current_state);
@@ -3061,16 +3060,13 @@ static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector)
 	struct drm_device *dev = connector->dev;
 	enum dc_connection_type new_connection_type = dc_connection_none;
 	struct amdgpu_device *adev = drm_to_adev(dev);
+#ifdef CONFIG_DRM_AMD_DC_HDCP
 	struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state);
-	struct dm_crtc_state *dm_crtc_state = NULL;
+#endif
 
 	if (adev->dm.disable_hpd_irq)
 		return;
 
-	if (dm_con_state->base.state && dm_con_state->base.crtc)
-		dm_crtc_state = to_dm_crtc_state(drm_atomic_get_crtc_state(
-					dm_con_state->base.state,
-					dm_con_state->base.crtc));
 	/*
 	 * In case of failure or MST no need to update connector status or notify the OS
 	 * since (for MST case) MST does this in its own context.
@@ -3101,9 +3097,8 @@ static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector)
 
 	} else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) {
 		if (new_connection_type == dc_connection_none &&
-		    aconnector->dc_link->type == dc_connection_none &&
-		    dm_crtc_state)
-			dm_set_dpms_off(aconnector->dc_link, dm_crtc_state);
+		    aconnector->dc_link->type == dc_connection_none)
+			dm_set_dpms_off(aconnector->dc_link);
 
 		amdgpu_dm_update_connector_after_detect(aconnector);
 
@@ -6840,7 +6835,6 @@ dm_crtc_duplicate_state(struct drm_crtc *crtc)
 	state->freesync_config = cur->freesync_config;
 	state->cm_has_degamma = cur->cm_has_degamma;
 	state->cm_is_degamma_srgb = cur->cm_is_degamma_srgb;
-	state->force_dpms_off = cur->force_dpms_off;
 	state->mpo_requested = cur->mpo_requested;
 	/* TODO Duplicate dc_stream after objects are stream object is flattened */
 
@@ -9579,8 +9573,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
 		 * and rely on sending it from software.
 		 */
 		if (acrtc_attach->base.state->event &&
-		    acrtc_state->active_planes > 0 &&
-		    !acrtc_state->force_dpms_off) {
+		    acrtc_state->active_planes > 0) {
 			drm_crtc_vblank_get(pcrtc);
 
 			spin_lock_irqsave(&pcrtc->dev->event_lock, flags);

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h

@@ -639,8 +639,6 @@ struct dm_crtc_state {
 
 	bool dsc_force_changed;
 	bool vrr_supported;
-
-	bool force_dpms_off;
 	struct mod_freesync_config freesync_config;
 	struct dc_info_packet vrr_infopacket;
 

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c

@@ -448,7 +448,6 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
 	struct mod_hdcp_display *display = &hdcp_work[link_index].display;
 	struct mod_hdcp_link *link = &hdcp_work[link_index].link;
 	struct drm_connector_state *conn_state;
-	struct dc_sink *sink = NULL;
 	bool link_is_hdcp14 = false;
 
 	if (config->dpms_off) {
@@ -462,13 +461,8 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
 	display->index = aconnector->base.index;
 	display->state = MOD_HDCP_DISPLAY_ACTIVE;
 
-	if (aconnector->dc_sink)
-		sink = aconnector->dc_sink;
-	else if (aconnector->dc_em_sink)
-		sink = aconnector->dc_em_sink;
-
-	if (sink != NULL)
-		link->mode = mod_hdcp_signal_type_to_operation_mode(sink->sink_signal);
+	if (aconnector->dc_sink != NULL)
+		link->mode = mod_hdcp_signal_type_to_operation_mode(aconnector->dc_sink->sink_signal);
 
 	display->controller = CONTROLLER_ID_D0 + config->otg_inst;
 	display->dig_fe = config->dig_fe;
@@ -478,8 +472,9 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
 	link->link_enc_idx = config->link_enc_idx;
 	link->dio_output_id = config->dio_output_idx;
 	link->phy_idx = config->phy_idx;
-	if (sink)
-		link_is_hdcp14 = dc_link_is_hdcp14(aconnector->dc_link, sink->sink_signal);
+
+	link->hdcp_supported_informational = dc_link_is_hdcp14(aconnector->dc_link,
+			aconnector->dc_sink->sink_signal) ? 1 : 0;
 	link->hdcp_supported_informational = link_is_hdcp14;
 	link->dp.rev = aconnector->dc_link->dpcd_caps.dpcd_rev.raw;
 	link->dp.assr_enabled = config->assr_enabled;