disp: msm: allow DMS before cont-splash handoff

Currently dynamic mode-switch is allowed only after
the cont-splash handoff is handled during the first
frame. Remove this restriction for cmd-mode alone as
it can handle the use-case.

Change-Id: I5f9dc758f50a91fec0b9f710c74f2ea78c4e75eb
Signed-off-by: Veera Sundaram Sankaran <[email protected]>

msm/dsi/dsi_display.c

@@ -6375,10 +6375,12 @@ int dsi_display_prepare(struct dsi_display *display)
 	dsi_display_ctrl_isr_configure(display, true);
 
 	if (mode->dsi_mode_flags & DSI_MODE_FLAG_DMS) {
-		if (display->is_cont_splash_enabled) {
-			pr_err("DMS is not supposed to be set on first frame\n");
+		if (display->is_cont_splash_enabled &&
+		    display->config.panel_mode == DSI_OP_VIDEO_MODE) {
+			pr_err("DMS not supported on first frame\n");
 			return -EINVAL;
 		}
+
 		/* update dsi ctrl for new mode */
 		rc = dsi_display_pre_switch(display);
 		if (rc)

msm/sde/sde_encoder.c

@@ -4602,7 +4602,7 @@ int sde_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc,
 	struct sde_encoder_phys *phys;
 	struct sde_kms *sde_kms = NULL;
 	struct msm_drm_private *priv = NULL;
-	bool needs_hw_reset = false;
+	bool needs_hw_reset = false, is_cmd_mode;
 	int ln_cnt1 = -EINVAL, i, rc, ret = 0;
 	struct msm_display_info *disp_info;
 
@@ -4629,9 +4629,10 @@ int sde_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc,
 		sde_connector_set_qsync_params(
 				sde_enc->cur_master->connector);
 
-
-	if (sde_enc->cur_master && sde_enc->cur_master->connector &&
-	    sde_encoder_check_curr_mode(drm_enc, MSM_DISPLAY_CMD_MODE))
+	is_cmd_mode = sde_encoder_check_curr_mode(drm_enc,
+				MSM_DISPLAY_CMD_MODE);
+	if (sde_enc->cur_master && sde_enc->cur_master->connector
+			&& is_cmd_mode)
 		sde_enc->frame_trigger_mode = sde_connector_get_property(
 			sde_enc->cur_master->connector->state,
 			CONNECTOR_PROP_CMD_FRAME_TRIGGER_MODE);
@@ -4691,7 +4692,8 @@ int sde_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc,
 	}
 
 	if (_sde_encoder_is_dsc_enabled(drm_enc) && sde_enc->cur_master &&
-			!sde_enc->cur_master->cont_splash_enabled) {
+		((is_cmd_mode && sde_enc->cur_master->cont_splash_enabled) ||
+			!sde_enc->cur_master->cont_splash_enabled)) {
 		rc = _sde_encoder_dsc_setup(sde_enc, params);
 		if (rc) {
 			SDE_ERROR_ENC(sde_enc, "failed to setup DSC: %d\n", rc);