Merge "disp: msm: Add support for seamless panel operating mode switch"

msm/dsi/dsi_defs.h

@@ -74,6 +74,8 @@ enum dsi_op_mode {
  * @DSI_MODE_FLAG_DMS: Seamless transition is dynamic mode switch
  * @DSI_MODE_FLAG_VRR: Seamless transition is DynamicFPS.
  *                     New timing values are sent from DAL.
+ * @DSI_MODE_FLAG_POMS:
+ *         Seamless transition is dynamic panel operating mode switch
  */
 enum dsi_mode_flags {
 	DSI_MODE_FLAG_SEAMLESS			= BIT(0),
@@ -81,6 +83,7 @@ enum dsi_mode_flags {
 	DSI_MODE_FLAG_VBLANK_PRE_MODESET	= BIT(2),
 	DSI_MODE_FLAG_DMS			= BIT(3),
 	DSI_MODE_FLAG_VRR			= BIT(4),
+	DSI_MODE_FLAG_POMS			= BIT(5),
 };
 
 /**
@@ -555,12 +558,14 @@ struct dsi_display_mode_priv_info {
  * @timing:         Timing parameters for the panel.
  * @pixel_clk_khz:  Pixel clock in Khz.
  * @dsi_mode_flags: Flags to signal other drm components via private flags
+ * @panel_mode:      Panel mode
  * @priv_info:      Mode private info
  */
 struct dsi_display_mode {
 	struct dsi_mode_info timing;
 	u32 pixel_clk_khz;
 	u32 dsi_mode_flags;
+	enum dsi_op_mode panel_mode;
 	struct dsi_display_mode_priv_info *priv_info;
 };
 

msm/dsi/dsi_display.c

@@ -3971,6 +3971,10 @@ static int dsi_display_set_mode_sub(struct dsi_display *display,
 		return -EINVAL;
 	}
 
+	if (mode->dsi_mode_flags & DSI_MODE_FLAG_POMS) {
+		display->config.panel_mode = mode->panel_mode;
+		display->panel->panel_mode = mode->panel_mode;
+	}
 	rc = dsi_panel_get_host_cfg_for_mode(display->panel,
 					     mode,
 					     &display->config);
@@ -5039,7 +5043,8 @@ static int dsi_display_ext_get_info(struct drm_connector *connector,
 		info->is_primary = false;
 
 	info->capabilities |= (MSM_DISPLAY_CAP_VID_MODE |
-		MSM_DISPLAY_CAP_EDID | MSM_DISPLAY_CAP_HOT_PLUG);
+			MSM_DISPLAY_CAP_EDID | MSM_DISPLAY_CAP_HOT_PLUG);
+	info->curr_panel_mode = MSM_DISPLAY_VIDEO_MODE;
 
 	mutex_unlock(&display->display_lock);
 	return 0;
@@ -5403,10 +5408,16 @@ int dsi_display_get_info(struct drm_connector *connector,
 
 	switch (display->panel->panel_mode) {
 	case DSI_OP_VIDEO_MODE:
+		info->curr_panel_mode = MSM_DISPLAY_VIDEO_MODE;
 		info->capabilities |= MSM_DISPLAY_CAP_VID_MODE;
+		if (display->panel->panel_mode_switch_enabled)
+			info->capabilities |= MSM_DISPLAY_CAP_CMD_MODE;
 		break;
 	case DSI_OP_CMD_MODE:
+		info->curr_panel_mode = MSM_DISPLAY_CMD_MODE;
 		info->capabilities |= MSM_DISPLAY_CAP_CMD_MODE;
+		if (display->panel->panel_mode_switch_enabled)
+			info->capabilities |= MSM_DISPLAY_CAP_VID_MODE;
 		info->is_te_using_watchdog_timer =
 			display->panel->te_using_watchdog_timer |
 			display->sw_te_using_wd;
@@ -5704,7 +5715,8 @@ int dsi_display_find_mode(struct dsi_display *display,
 
 		if (cmp->timing.v_active == m->timing.v_active &&
 			cmp->timing.h_active == m->timing.h_active &&
-			cmp->timing.refresh_rate == m->timing.refresh_rate) {
+			cmp->timing.refresh_rate == m->timing.refresh_rate &&
+			cmp->panel_mode == m->panel_mode) {
 			*out_mode = m;
 			rc = 0;
 			break;
@@ -6314,7 +6326,8 @@ int dsi_display_prepare(struct dsi_display *display)
 		goto error;
 	}
 
-	if (!display->is_cont_splash_enabled) {
+	if (!(mode->dsi_mode_flags & DSI_MODE_FLAG_POMS) &&
+		(!display->is_cont_splash_enabled)) {
 		/*
 		 * For continuous splash usecase we skip panel
 		 * pre prepare since the regulator vote is already
@@ -6403,11 +6416,13 @@ int dsi_display_prepare(struct dsi_display *display)
 			goto error_ctrl_link_off;
 		}
 
-		rc = dsi_panel_prepare(display->panel);
-		if (rc) {
-			pr_err("[%s] panel prepare failed, rc=%d\n",
-					display->name, rc);
-			goto error_ctrl_link_off;
+		if (!(mode->dsi_mode_flags & DSI_MODE_FLAG_POMS)) {
+			rc = dsi_panel_prepare(display->panel);
+			if (rc) {
+				pr_err("[%s] panel prepare failed, rc=%d\n",
+						display->name, rc);
+				goto error_ctrl_link_off;
+			}
 		}
 	}
 	goto error;
@@ -6728,7 +6743,8 @@ int dsi_display_enable(struct dsi_display *display)
 				   display->name, rc);
 			goto error;
 		}
-	} else {
+	} else if (!(display->panel->cur_mode->dsi_mode_flags &
+			DSI_MODE_FLAG_POMS)){
 		rc = dsi_panel_enable(display->panel);
 		if (rc) {
 			pr_err("[%s] failed to enable DSI panel, rc=%d\n",
@@ -6757,6 +6773,7 @@ int dsi_display_enable(struct dsi_display *display)
 	}
 
 	if (display->config.panel_mode == DSI_OP_VIDEO_MODE) {
+		pr_debug("%s:enable video timing eng\n", __func__);
 		rc = dsi_display_vid_engine_enable(display);
 		if (rc) {
 			pr_err("[%s]failed to enable DSI video engine, rc=%d\n",
@@ -6764,6 +6781,7 @@ int dsi_display_enable(struct dsi_display *display)
 			goto error_disable_panel;
 		}
 	} else if (display->config.panel_mode == DSI_OP_CMD_MODE) {
+		pr_debug("%s:enable command timing eng\n", __func__);
 		rc = dsi_display_cmd_engine_enable(display);
 		if (rc) {
 			pr_err("[%s]failed to enable DSI cmd engine, rc=%d\n",
@@ -6797,10 +6815,18 @@ int dsi_display_post_enable(struct dsi_display *display)
 
 	mutex_lock(&display->display_lock);
 
-	rc = dsi_panel_post_enable(display->panel);
-	if (rc)
-		pr_err("[%s] panel post-enable failed, rc=%d\n",
-		       display->name, rc);
+	if (display->panel->cur_mode->dsi_mode_flags & DSI_MODE_FLAG_POMS) {
+		if (display->config.panel_mode == DSI_OP_CMD_MODE)
+			dsi_panel_mode_switch_to_cmd(display->panel);
+
+		if (display->config.panel_mode == DSI_OP_VIDEO_MODE)
+			dsi_panel_mode_switch_to_vid(display->panel);
+	} else {
+		rc = dsi_panel_post_enable(display->panel);
+		if (rc)
+			pr_err("[%s] panel post-enable failed, rc=%d\n",
+				display->name, rc);
+	}
 
 	/* remove the clk vote for CMD mode panels */
 	if (display->config.panel_mode == DSI_OP_CMD_MODE)
@@ -6826,12 +6852,18 @@ int dsi_display_pre_disable(struct dsi_display *display)
 	if (display->config.panel_mode == DSI_OP_CMD_MODE)
 		dsi_display_clk_ctrl(display->dsi_clk_handle,
 			DSI_ALL_CLKS, DSI_CLK_ON);
+	if (display->poms_pending) {
+		if (display->config.panel_mode == DSI_OP_CMD_MODE)
+			dsi_panel_pre_mode_switch_to_video(display->panel);
 
-	rc = dsi_panel_pre_disable(display->panel);
-	if (rc)
-		pr_err("[%s] panel pre-disable failed, rc=%d\n",
-		       display->name, rc);
-
+		if (display->config.panel_mode == DSI_OP_VIDEO_MODE)
+			dsi_panel_pre_mode_switch_to_cmd(display->panel);
+	} else {
+		rc = dsi_panel_pre_disable(display->panel);
+		if (rc)
+			pr_err("[%s] panel pre-disable failed, rc=%d\n",
+				display->name, rc);
+	}
 	mutex_unlock(&display->display_lock);
 	return rc;
 }
@@ -6868,11 +6900,12 @@ int dsi_display_disable(struct dsi_display *display)
 		rc = -EINVAL;
 	}
 
-	rc = dsi_panel_disable(display->panel);
-	if (rc)
-		pr_err("[%s] failed to disable DSI panel, rc=%d\n",
-		       display->name, rc);
-
+	if (!display->poms_pending) {
+		rc = dsi_panel_disable(display->panel);
+		if (rc)
+			pr_err("[%s] failed to disable DSI panel, rc=%d\n",
+				display->name, rc);
+	}
 	mutex_unlock(&display->display_lock);
 	SDE_EVT32(SDE_EVTLOG_FUNC_EXIT);
 	return rc;
@@ -6911,12 +6944,12 @@ int dsi_display_unprepare(struct dsi_display *display)
 	if (rc)
 		pr_err("[%s] display wake up failed, rc=%d\n",
 		       display->name, rc);
-
-	rc = dsi_panel_unprepare(display->panel);
-	if (rc)
-		pr_err("[%s] panel unprepare failed, rc=%d\n",
-		       display->name, rc);
-
+	if (!display->poms_pending) {
+		rc = dsi_panel_unprepare(display->panel);
+		if (rc)
+			pr_err("[%s] panel unprepare failed, rc=%d\n",
+			       display->name, rc);
+	}
 	rc = dsi_display_ctrl_host_disable(display);
 	if (rc)
 		pr_err("[%s] failed to disable DSI host, rc=%d\n",
@@ -6949,10 +6982,12 @@ int dsi_display_unprepare(struct dsi_display *display)
 	/* destrory dsi isr set up */
 	dsi_display_ctrl_isr_configure(display, false);
 
-	rc = dsi_panel_post_unprepare(display->panel);
-	if (rc)
-		pr_err("[%s] panel post-unprepare failed, rc=%d\n",
-		       display->name, rc);
+	if (!display->poms_pending) {
+		rc = dsi_panel_post_unprepare(display->panel);
+		if (rc)
+			pr_err("[%s] panel post-unprepare failed, rc=%d\n",
+			       display->name, rc);
+	}
 
 	mutex_unlock(&display->display_lock);
 

msm/dsi/dsi_display.h

@@ -166,6 +166,7 @@ struct dsi_display_ext_bridge {
  * @cmdline_topology: Display topology shared from kernel command line.
  * @cmdline_timing:   Display timing shared from kernel command line.
  * @is_tpg_enabled:   TPG state.
+ * @poms_pending;      Flag indicating the pending panel operating mode switch.
  * @ulps_enabled:     ulps state.
  * @clamp_enabled:    clamp state.
  * @phy_idle_power_off:   PHY power state.
@@ -226,6 +227,7 @@ struct dsi_display {
 	int cmdline_topology;
 	int cmdline_timing;
 	bool is_tpg_enabled;
+	bool poms_pending;
 	bool ulps_enabled;
 	bool clamp_enabled;
 	bool phy_idle_power_off;

msm/dsi/dsi_drm.c

@@ -71,11 +71,18 @@ static void convert_to_dsi_mode(const struct drm_display_mode *drm_mode,
 		dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_DMS;
 	if (msm_is_mode_seamless_vrr(drm_mode))
 		dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_VRR;
+	if (msm_is_mode_seamless_poms(drm_mode))
+		dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_POMS;
 
 	dsi_mode->timing.h_sync_polarity =
 			!!(drm_mode->flags & DRM_MODE_FLAG_PHSYNC);
 	dsi_mode->timing.v_sync_polarity =
 			!!(drm_mode->flags & DRM_MODE_FLAG_PVSYNC);
+
+	if (drm_mode->flags & DRM_MODE_FLAG_VID_MODE_PANEL)
+		dsi_mode->panel_mode = DSI_OP_VIDEO_MODE;
+	if (drm_mode->flags & DRM_MODE_FLAG_CMD_MODE_PANEL)
+		dsi_mode->panel_mode = DSI_OP_CMD_MODE;
 }
 
 void dsi_convert_to_drm_mode(const struct dsi_display_mode *dsi_mode,
@@ -113,12 +120,19 @@ void dsi_convert_to_drm_mode(const struct dsi_display_mode *dsi_mode,
 		drm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_DMS;
 	if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_VRR)
 		drm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_VRR;
+	if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_POMS)
+		drm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_POMS;
 
 	if (dsi_mode->timing.h_sync_polarity)
 		drm_mode->flags |= DRM_MODE_FLAG_PHSYNC;
 	if (dsi_mode->timing.v_sync_polarity)
 		drm_mode->flags |= DRM_MODE_FLAG_PVSYNC;
 
+	if (dsi_mode->panel_mode == DSI_OP_VIDEO_MODE)
+		drm_mode->flags |= DRM_MODE_FLAG_VID_MODE_PANEL;
+	if (dsi_mode->panel_mode == DSI_OP_CMD_MODE)
+		drm_mode->flags |= DRM_MODE_FLAG_CMD_MODE_PANEL;
+
 	drm_mode_set_name(drm_mode);
 }
 
@@ -233,8 +247,18 @@ static void dsi_bridge_disable(struct drm_bridge *bridge)
 	}
 	display = c_bridge->display;
 
-	if (display && display->drm_conn)
-		sde_connector_helper_bridge_disable(display->drm_conn);
+	if (display && display->drm_conn) {
+		if (bridge->encoder->crtc->state->adjusted_mode.private_flags &
+			MSM_MODE_FLAG_SEAMLESS_POMS) {
+			display->poms_pending = true;
+			/* Disable ESD thread, during panel mode switch */
+			sde_connector_schedule_status_work(display->drm_conn,
+				false);
+		} else {
+			display->poms_pending = false;
+			sde_connector_helper_bridge_disable(display->drm_conn);
+		}
+	}
 
 	rc = dsi_display_pre_disable(c_bridge->display);
 	if (rc) {
@@ -363,9 +387,17 @@ static bool dsi_bridge_mode_fixup(struct drm_bridge *bridge,
 
 		cur_mode = crtc_state->crtc->mode;
 
+		/* No panel mode switch when drm pipeline is changing */
+		if ((dsi_mode.panel_mode != cur_dsi_mode.panel_mode) &&
+			(!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_VRR)) &&
+			(!crtc_state->active_changed ||
+			display->is_cont_splash_enabled))
+			dsi_mode.dsi_mode_flags |= DSI_MODE_FLAG_POMS;
+
 		/* No DMS/VRR when drm pipeline is changing */
 		if (!drm_mode_equal(&cur_mode, adjusted_mode) &&
 			(!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_VRR)) &&
+			(!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_POMS)) &&
 			(!crtc_state->active_changed ||
 			 display->is_cont_splash_enabled))
 			dsi_mode.dsi_mode_flags |= DSI_MODE_FLAG_DMS;

msm/dsi/dsi_panel.c

@@ -1365,6 +1365,7 @@ static int dsi_panel_parse_panel_mode(struct dsi_panel *panel)
 {
 	int rc = 0;
 	struct dsi_parser_utils *utils = &panel->utils;
+	bool panel_mode_switch_enabled;
 	enum dsi_op_mode panel_mode;
 	const char *mode;
 
@@ -1383,7 +1384,13 @@ static int dsi_panel_parse_panel_mode(struct dsi_panel *panel)
 		goto error;
 	}
 
-	if (panel_mode == DSI_OP_VIDEO_MODE) {
+	panel_mode_switch_enabled = utils->read_bool(utils->data,
+					"qcom,mdss-dsi-panel-mode-switch");
+
+	pr_info("%s: panel operating mode switch feature %s\n", __func__,
+		(panel_mode_switch_enabled ? "enabled" : "disabled"));
+
+	if (panel_mode == DSI_OP_VIDEO_MODE || panel_mode_switch_enabled) {
 		rc = dsi_panel_parse_video_host_config(&panel->video_config,
 						       utils,
 						       panel->name);
@@ -1394,7 +1401,7 @@ static int dsi_panel_parse_panel_mode(struct dsi_panel *panel)
 		}
 	}
 
-	if (panel_mode == DSI_OP_CMD_MODE) {
+	if (panel_mode == DSI_OP_CMD_MODE || panel_mode_switch_enabled) {
 		rc = dsi_panel_parse_cmd_host_config(&panel->cmd_config,
 						     utils,
 						     panel->name);
@@ -1406,6 +1413,7 @@ static int dsi_panel_parse_panel_mode(struct dsi_panel *panel)
 	}
 
 	panel->panel_mode = panel_mode;
+	panel->panel_mode_switch_enabled = panel_mode_switch_enabled;
 error:
 	return rc;
 }
@@ -2663,6 +2671,33 @@ static int dsi_panel_parse_partial_update_caps(struct dsi_display_mode *mode,
 	return rc;
 }
 
+static int dsi_panel_parse_panel_mode_caps(struct dsi_display_mode *mode,
+				struct dsi_parser_utils *utils)
+{
+	bool vid_mode_support, cmd_mode_support;
+
+	if (!mode || !mode->priv_info) {
+		pr_err("invalid arguments\n");
+		return -EINVAL;
+	}
+
+	vid_mode_support = utils->read_bool(utils->data,
+				"qcom,mdss-dsi-video-mode");
+
+	cmd_mode_support = utils->read_bool(utils->data,
+				"qcom,mdss-dsi-cmd-mode");
+
+	if (cmd_mode_support)
+		mode->panel_mode = DSI_OP_CMD_MODE;
+	else if (vid_mode_support)
+		mode->panel_mode = DSI_OP_VIDEO_MODE;
+	else
+		return -EINVAL;
+
+	return 0;
+};
+
+
 static int dsi_panel_parse_dms_info(struct dsi_panel *panel)
 {
 	int dms_enabled;
@@ -3349,6 +3384,17 @@ int dsi_panel_get_mode(struct dsi_panel *panel,
 		rc = dsi_panel_parse_partial_update_caps(mode, utils);
 		if (rc)
 			pr_err("failed to partial update caps, rc=%d\n", rc);
+
+		if (panel->panel_mode_switch_enabled) {
+			rc = dsi_panel_parse_panel_mode_caps(mode, utils);
+			if (rc) {
+				pr_err("PMS: failed to parse panel mode\n");
+				rc = 0;
+				mode->panel_mode = panel->panel_mode;
+			}
+		} else {
+			mode->panel_mode = panel->panel_mode;
+		}
 	}
 	goto done;
 
@@ -3707,6 +3753,86 @@ int dsi_panel_send_roi_dcs(struct dsi_panel *panel, int ctrl_idx,
 	return rc;
 }
 
+int dsi_panel_pre_mode_switch_to_video(struct dsi_panel *panel)
+{
+	int rc = 0;
+
+	if (!panel) {
+		pr_err("Invalid params\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&panel->panel_lock);
+
+	rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_CMD_TO_VID_SWITCH);
+	if (rc)
+		pr_err("[%s] failed to send DSI_CMD_SET_CMD_TO_VID_SWITCH cmds, rc=%d\n",
+		       panel->name, rc);
+
+	mutex_unlock(&panel->panel_lock);
+	return rc;
+}
+
+int dsi_panel_pre_mode_switch_to_cmd(struct dsi_panel *panel)
+{
+	int rc = 0;
+
+	if (!panel) {
+		pr_err("Invalid params\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&panel->panel_lock);
+
+	rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_VID_TO_CMD_SWITCH);
+	if (rc)
+		pr_err("[%s] failed to send DSI_CMD_SET_CMD_TO_VID_SWITCH cmds, rc=%d\n",
+		       panel->name, rc);
+
+	mutex_unlock(&panel->panel_lock);
+	return rc;
+}
+
+int dsi_panel_mode_switch_to_cmd(struct dsi_panel *panel)
+{
+	int rc = 0;
+
+	if (!panel) {
+		pr_err("Invalid params\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&panel->panel_lock);
+
+	rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_POST_VID_TO_CMD_SWITCH);
+	if (rc)
+		pr_err("[%s] failed to send DSI_CMD_SET_CMD_TO_VID_SWITCH cmds, rc=%d\n",
+		       panel->name, rc);
+
+	mutex_unlock(&panel->panel_lock);
+	return rc;
+}
+
+int dsi_panel_mode_switch_to_vid(struct dsi_panel *panel)
+{
+	int rc = 0;
+
+	if (!panel) {
+		pr_err("Invalid params\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&panel->panel_lock);
+
+	rc = dsi_panel_tx_cmd_set(panel, DSI_CMD_SET_POST_CMD_TO_VID_SWITCH);
+	if (rc)
+		pr_err("[%s] failed to send DSI_CMD_SET_CMD_TO_VID_SWITCH cmds, rc=%d\n",
+		       panel->name, rc);
+
+	mutex_unlock(&panel->panel_lock);
+	return rc;
+}
+
 int dsi_panel_switch(struct dsi_panel *panel)
 {
 	int rc = 0;

msm/dsi/dsi_panel.h

@@ -156,6 +156,7 @@ struct dsi_panel {
 	struct dsi_video_engine_cfg video_config;
 	struct dsi_cmd_engine_cfg cmd_config;
 	enum dsi_op_mode panel_mode;
+	bool panel_mode_switch_enabled;
 
 	struct dsi_dfps_capabilities dfps_caps;
 	struct dsi_panel_phy_props phy_props;
@@ -277,6 +278,11 @@ int dsi_panel_send_qsync_off_dcs(struct dsi_panel *panel,
 int dsi_panel_send_roi_dcs(struct dsi_panel *panel, int ctrl_idx,
 		struct dsi_rect *roi);
 
+int dsi_panel_pre_mode_switch_to_video(struct dsi_panel *panel);
+int dsi_panel_pre_mode_switch_to_cmd(struct dsi_panel *panel);
+int dsi_panel_mode_switch_to_cmd(struct dsi_panel *panel);
+int dsi_panel_mode_switch_to_vid(struct dsi_panel *panel);
+
 int dsi_panel_switch(struct dsi_panel *panel);
 
 int dsi_panel_post_switch(struct dsi_panel *panel);

msm/msm_atomic.c

@@ -86,7 +86,8 @@ static inline bool _msm_seamless_for_crtc(struct drm_atomic_state *state,
 	int conn_cnt = 0;
 
 	if (msm_is_mode_seamless(&crtc_state->mode) ||
-		msm_is_mode_seamless_vrr(&crtc_state->adjusted_mode))
+		msm_is_mode_seamless_vrr(&crtc_state->adjusted_mode) ||
+		msm_is_mode_seamless_poms(&crtc_state->adjusted_mode))
 		return true;
 
 	if (msm_is_mode_seamless_dms(&crtc_state->adjusted_mode) && !enable)

msm/msm_drv.h

@@ -248,6 +248,18 @@ enum msm_display_caps {
 	MSM_DISPLAY_CAP_MST_MODE	= BIT(5),
 };
 
+/**
+ * enum panel_mode - panel operation mode
+ * @MSM_DISPLAY_VIDEO_MODE: video mode panel
+ * @MSM_DISPLAY_CMD_MODE:   Command mode panel
+ * @MODE_MAX:
+ */
+enum panel_op_mode {
+	MSM_DISPLAY_VIDEO_MODE = 0,
+	MSM_DISPLAY_CMD_MODE,
+	MSM_DISPLAY_MODE_MAX,
+};
+
 /**
  * enum msm_event_wait - type of HW events to wait for
  * @MSM_ENC_COMMIT_DONE - wait for the driver to flush the registers to HW
@@ -484,7 +496,7 @@ struct msm_mode_info {
 struct msm_display_info {
 	int intf_type;
 	uint32_t capabilities;
-
+	enum panel_op_mode curr_panel_mode;
 	uint32_t num_of_h_tiles;
 	uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
 

msm/msm_kms.h

@@ -38,6 +38,8 @@
 #define MSM_MODE_FLAG_SEAMLESS_DMS			(1<<2)
 /* Request to switch the fps */
 #define MSM_MODE_FLAG_SEAMLESS_VRR			(1<<3)
+/* Request to switch the panel mode */
+#define MSM_MODE_FLAG_SEAMLESS_POMS			(1<<4)
 
 /* As there are different display controller blocks depending on the
  * snapdragon version, the kms support is split out and the appropriate
@@ -212,6 +214,13 @@ static inline bool msm_is_mode_seamless_vrr(const struct drm_display_mode *mode)
 		: false;
 }
 
+static inline bool msm_is_mode_seamless_poms(
+		const struct drm_display_mode *mode)
+{
+	return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_POMS)
+		: false;
+}
+
 static inline bool msm_needs_vblank_pre_modeset(
 		const struct drm_display_mode *mode)
 {

msm/sde/sde_crtc.c

@@ -1795,8 +1795,8 @@ int sde_crtc_get_secure_transition_ops(struct drm_crtc *crtc,
 	 */
 	drm_for_each_encoder_mask(encoder, crtc->dev,
 			crtc->state->encoder_mask) {
-		post_commit |= sde_encoder_check_mode(encoder,
-						MSM_DISPLAY_CAP_VID_MODE);
+		post_commit |= sde_encoder_check_curr_mode(encoder,
+						MSM_DISPLAY_VIDEO_MODE);
 	}
 
 	SDE_DEBUG("crtc%d: secure_level %d old_valid_fb %d post_commit %d\n",
@@ -3136,8 +3136,8 @@ static void sde_crtc_atomic_begin(struct drm_crtc *crtc,
 	_sde_crtc_dest_scaler_setup(crtc);
 
 	/* cancel the idle notify delayed work */
-	if (sde_encoder_check_mode(sde_crtc->mixers[0].encoder,
-					MSM_DISPLAY_CAP_VID_MODE) &&
+	if (sde_encoder_check_curr_mode(sde_crtc->mixers[0].encoder,
+					MSM_DISPLAY_VIDEO_MODE) &&
 		kthread_cancel_delayed_work_sync(&sde_crtc->idle_notify_work))
 		SDE_DEBUG("idle notify work cancelled\n");
 
@@ -3253,8 +3253,9 @@ static void sde_crtc_atomic_flush(struct drm_crtc *crtc,
 	_sde_crtc_wait_for_fences(crtc);
 
 	/* schedule the idle notify delayed work */
-	if (idle_time && sde_encoder_check_mode(sde_crtc->mixers[0].encoder,
-						MSM_DISPLAY_CAP_VID_MODE)) {
+	if (idle_time && sde_encoder_check_curr_mode(
+						sde_crtc->mixers[0].encoder,
+						MSM_DISPLAY_VIDEO_MODE)) {
 		kthread_queue_delayed_work(&event_thread->worker,
 					&sde_crtc->idle_notify_work,
 					msecs_to_jiffies(idle_time));
@@ -4322,8 +4323,8 @@ static int _sde_crtc_check_secure_state_smmu_translation(struct drm_crtc *crtc,
 
 	drm_for_each_encoder_mask(encoder, crtc->dev,
 			crtc->state->encoder_mask) {
-		is_video_mode |= sde_encoder_check_mode(encoder,
-						MSM_DISPLAY_CAP_VID_MODE);
+		is_video_mode |= sde_encoder_check_curr_mode(encoder,
+			MSM_DISPLAY_VIDEO_MODE);
 	}
 
 	/*
@@ -5007,8 +5008,9 @@ static int _sde_crtc_get_output_fence(struct drm_crtc *crtc,
 	cstate = to_sde_crtc_state(state);
 
 	drm_for_each_encoder_mask(encoder, crtc->dev, state->encoder_mask) {
-		is_vid |= sde_encoder_check_mode(encoder,
-						MSM_DISPLAY_CAP_VID_MODE);
+		if (sde_encoder_check_curr_mode(encoder,
+						MSM_DISPLAY_VIDEO_MODE))
+			is_vid = true;
 		if (is_vid)
 			break;
 	}

msm/sde/sde_encoder.c

@@ -170,6 +170,8 @@ enum sde_enc_rc_states {
  * @te_source:		vsync source pin information
  * @num_phys_encs:	Actual number of physical encoders contained.
  * @phys_encs:		Container of physical encoders managed.
+ * @phys_vid_encs:		Video physical encoders for panel mode switch.
+ * @phys_cmd_encs:		Command physical encoders for panel mode switch.
  * @cur_master:		Pointer to the current master in this mode. Optimization
  *			Only valid after enable. Cleared as disable.
  * @hw_pp		Handle to the pingpong blocks used for the display. No.
@@ -236,6 +238,8 @@ struct sde_encoder_virt {
 
 	unsigned int num_phys_encs;
 	struct sde_encoder_phys *phys_encs[MAX_PHYS_ENCODERS_PER_VIRTUAL];
+	struct sde_encoder_phys *phys_vid_encs[MAX_PHYS_ENCODERS_PER_VIRTUAL];
+	struct sde_encoder_phys *phys_cmd_encs[MAX_PHYS_ENCODERS_PER_VIRTUAL];
 	struct sde_encoder_phys *cur_master;
 	struct sde_hw_pingpong *hw_pp[MAX_CHANNELS_PER_ENC];
 	struct sde_hw_dsc *hw_dsc[MAX_CHANNELS_PER_ENC];
@@ -677,8 +681,16 @@ void sde_encoder_destroy(struct drm_encoder *drm_enc)
 	sde_rsc_client_destroy(sde_enc->rsc_client);
 
 	for (i = 0; i < sde_enc->num_phys_encs; i++) {
-		struct sde_encoder_phys *phys = sde_enc->phys_encs[i];
+		struct sde_encoder_phys *phys;
 
+		phys = sde_enc->phys_vid_encs[i];
+		if (phys && phys->ops.destroy) {
+			phys->ops.destroy(phys);
+			--sde_enc->num_phys_encs;
+			sde_enc->phys_encs[i] = NULL;
+		}
+
+		phys = sde_enc->phys_cmd_encs[i];
 		if (phys && phys->ops.destroy) {
 			phys->ops.destroy(phys);
 			--sde_enc->num_phys_encs;
@@ -1687,7 +1699,7 @@ static void _sde_encoder_update_vsync_source(struct sde_encoder_virt *sde_enc,
 		return;
 	}
 
-	if (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE) {
+	if (sde_encoder_check_curr_mode(&sde_enc->base, MSM_DISPLAY_CMD_MODE)) {
 		if (is_dummy)
 			vsync_source = SDE_VSYNC_SOURCE_WD_TIMER_0 -
 					sde_enc->te_source;
@@ -1892,9 +1904,9 @@ static int _sde_encoder_update_rsc_client(
 	if (sde_encoder_in_clone_mode(drm_enc) || !disp_info->is_primary ||
 			  (disp_info->is_primary && qsync_mode))
 		rsc_state = enable ? SDE_RSC_CLK_STATE : SDE_RSC_IDLE_STATE;
-	else if (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE)
+	else if (sde_encoder_check_curr_mode(drm_enc, MSM_DISPLAY_CMD_MODE))
 		rsc_state = enable ? SDE_RSC_CMD_STATE : SDE_RSC_IDLE_STATE;
-	else if (disp_info->capabilities & MSM_DISPLAY_CAP_VID_MODE)
+	else if (sde_encoder_check_curr_mode(drm_enc, MSM_DISPLAY_VIDEO_MODE))
 		rsc_state = enable ? SDE_RSC_VID_STATE : SDE_RSC_IDLE_STATE;
 
 	SDE_EVT32(rsc_state, qsync_mode);
@@ -2032,14 +2044,15 @@ static int _sde_encoder_resource_control_helper(struct drm_encoder *drm_enc,
 	struct sde_kms *sde_kms;
 	struct sde_encoder_virt *sde_enc;
 	int rc;
-	bool is_cmd_mode, is_primary;
+	bool is_cmd_mode = false, is_primary;
 
 	sde_enc = to_sde_encoder_virt(drm_enc);
 	priv = drm_enc->dev->dev_private;
 	sde_kms = to_sde_kms(priv->kms);
 
-	is_cmd_mode = sde_enc->disp_info.capabilities &
-			MSM_DISPLAY_CAP_CMD_MODE;
+	if (sde_encoder_check_curr_mode(drm_enc, MSM_DISPLAY_CMD_MODE))
+		is_cmd_mode = true;
+
 	is_primary = sde_enc->disp_info.is_primary;
 
 	SDE_DEBUG_ENC(sde_enc, "enable:%d\n", enable);
@@ -2612,9 +2625,8 @@ static int sde_encoder_resource_control(struct drm_encoder *drm_enc,
 	}
 	sde_enc = to_sde_encoder_virt(drm_enc);
 	priv = drm_enc->dev->dev_private;
-	is_vid_mode = sde_enc->disp_info.capabilities &
-						MSM_DISPLAY_CAP_VID_MODE;
-
+	if (sde_encoder_check_curr_mode(&sde_enc->base, MSM_DISPLAY_VIDEO_MODE))
+		is_vid_mode = true;
 	/*
 	 * when idle_pc is not supported, process only KICKOFF, STOP and MODESET
 	 * events and return early for other events (ie wb display).
@@ -2673,6 +2685,32 @@ static int sde_encoder_resource_control(struct drm_encoder *drm_enc,
 	return ret;
 }
 
+static void sde_encoder_virt_mode_switch(enum sde_intf_mode intf_mode,
+					struct sde_encoder_virt *sde_enc,
+					struct drm_display_mode *adj_mode)
+{
+	int i = 0;
+
+	if (intf_mode == INTF_MODE_CMD) {
+		for (i = 0; i < sde_enc->num_phys_encs; i++)
+			sde_enc->phys_encs[i] = sde_enc->phys_vid_encs[i];
+		sde_enc->disp_info.curr_panel_mode = MSM_DISPLAY_VIDEO_MODE;
+		SDE_DEBUG_ENC(sde_enc, "switch to video physical encoder\n");
+		SDE_EVT32(DRMID(&sde_enc->base), intf_mode,
+			msm_is_mode_seamless_poms(adj_mode),
+			SDE_EVTLOG_FUNC_CASE1);
+	}
+	if (intf_mode == INTF_MODE_VIDEO) {
+		for (i = 0; i < sde_enc->num_phys_encs; i++)
+			sde_enc->phys_encs[i] = sde_enc->phys_cmd_encs[i];
+		sde_enc->disp_info.curr_panel_mode = MSM_DISPLAY_CMD_MODE;
+		SDE_EVT32(DRMID(&sde_enc->base), intf_mode,
+			msm_is_mode_seamless_poms(adj_mode),
+			SDE_EVTLOG_FUNC_CASE2);
+		SDE_DEBUG_ENC(sde_enc, "switch to command physical encoder\n");
+	}
+}
+
 static void sde_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 				      struct drm_display_mode *mode,
 				      struct drm_display_mode *adj_mode)
@@ -2686,6 +2724,8 @@ static void sde_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 	struct sde_connector *sde_conn = NULL;
 	struct sde_rm_hw_iter dsc_iter, pp_iter;
 	struct sde_rm_hw_request request_hw;
+	enum sde_intf_mode intf_mode;
+
 	int i = 0, ret;
 
 	if (!drm_enc) {
@@ -2742,6 +2782,11 @@ static void sde_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 			return;
 		}
 	}
+	intf_mode = sde_encoder_get_intf_mode(drm_enc);
+
+	/* Switch pysical encoder */
+	if (msm_is_mode_seamless_poms(adj_mode))
+		sde_encoder_virt_mode_switch(intf_mode, sde_enc, adj_mode);
 
 	/* release resources before seamless mode change */
 	if (msm_is_mode_seamless_dms(adj_mode)) {
@@ -3151,8 +3196,8 @@ static void sde_encoder_virt_enable(struct drm_encoder *drm_enc)
 				phys->ops.enable(phys);
 		}
 
-		if (sde_enc->misr_enable && (sde_enc->disp_info.capabilities &
-		     MSM_DISPLAY_CAP_VID_MODE) && phys->ops.setup_misr)
+		if (sde_enc->misr_enable  && phys->ops.setup_misr &&
+		(sde_encoder_check_curr_mode(drm_enc, MSM_DISPLAY_VIDEO_MODE)))
 			phys->ops.setup_misr(phys, true,
 						sde_enc->misr_frame_count);
 	}
@@ -3509,7 +3554,8 @@ static void sde_encoder_frame_done_callback(
 {
 	struct sde_encoder_virt *sde_enc = to_sde_encoder_virt(drm_enc);
 	unsigned int i;
-	bool trigger = true, is_cmd_mode;
+	bool trigger = true;
+	bool is_cmd_mode = false;
 	enum sde_rm_topology_name topology = SDE_RM_TOPOLOGY_NONE;
 
 	if (!drm_enc || !sde_enc->cur_master) {
@@ -3520,8 +3566,8 @@ static void sde_encoder_frame_done_callback(
 
 	sde_enc->crtc_frame_event_cb_data.connector =
 				sde_enc->cur_master->connector;
-	is_cmd_mode = sde_enc->disp_info.capabilities &
-					MSM_DISPLAY_CAP_CMD_MODE;
+	if (sde_encoder_check_curr_mode(drm_enc, MSM_DISPLAY_CMD_MODE))
+		is_cmd_mode = true;
 
 	if (event & (SDE_ENCODER_FRAME_EVENT_DONE
 			| SDE_ENCODER_FRAME_EVENT_ERROR
@@ -3840,8 +3886,8 @@ static void _sde_encoder_kickoff_phys(struct sde_encoder_virt *sde_enc)
 		return;
 	}
 
-	is_vid_mode = sde_enc->disp_info.capabilities &
-					MSM_DISPLAY_CAP_VID_MODE;
+	if (sde_encoder_check_curr_mode(&sde_enc->base, MSM_DISPLAY_VIDEO_MODE))
+		is_vid_mode = true;
 
 	/* don't perform flush/start operations for slave encoders */
 	for (i = 0; i < sde_enc->num_phys_encs; i++) {
@@ -4047,7 +4093,7 @@ static void _sde_encoder_update_master(struct drm_encoder *drm_enc,
 	}
 }
 
-bool sde_encoder_check_mode(struct drm_encoder *drm_enc, u32 mode)
+bool sde_encoder_check_curr_mode(struct drm_encoder *drm_enc, u32 mode)
 {
 	struct sde_encoder_virt *sde_enc;
 	struct msm_display_info *disp_info;
@@ -4060,7 +4106,7 @@ bool sde_encoder_check_mode(struct drm_encoder *drm_enc, u32 mode)
 	sde_enc = to_sde_encoder_virt(drm_enc);
 	disp_info = &sde_enc->disp_info;
 
-	return (disp_info->capabilities & mode);
+	return (disp_info->curr_panel_mode == mode);
 }
 
 void sde_encoder_trigger_kickoff_pending(struct drm_encoder *drm_enc)
@@ -4094,8 +4140,9 @@ void sde_encoder_trigger_kickoff_pending(struct drm_encoder *drm_enc)
 
 			/* update only for command mode primary ctl */
 			if ((phys == sde_enc->cur_master) &&
-			   (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE)
-			    && ctl->ops.trigger_pending)
+				(sde_encoder_check_curr_mode(drm_enc,
+					MSM_DISPLAY_CMD_MODE))
+				&& ctl->ops.trigger_pending)
 				ctl->ops.trigger_pending(ctl);
 		}
 	}
@@ -4583,7 +4630,7 @@ int sde_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc,
 
 
 	if (sde_enc->cur_master && sde_enc->cur_master->connector &&
-	    disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE)
+	    sde_encoder_check_curr_mode(drm_enc, MSM_DISPLAY_CMD_MODE))
 		sde_enc->frame_trigger_mode = sde_connector_get_property(
 			sde_enc->cur_master->connector->state,
 			CONNECTOR_PROP_CMD_FRAME_TRIGGER_MODE);
@@ -5115,11 +5162,12 @@ static void sde_encoder_early_unregister(struct drm_encoder *encoder)
 }
 
 static int sde_encoder_virt_add_phys_encs(
-		u32 display_caps,
+		struct msm_display_info *disp_info,
 		struct sde_encoder_virt *sde_enc,
 		struct sde_enc_phys_init_params *params)
 {
 	struct sde_encoder_phys *enc = NULL;
+	u32 display_caps = disp_info->capabilities;
 
 	SDE_DEBUG_ENC(sde_enc, "\n");
 
@@ -5143,8 +5191,7 @@ static int sde_encoder_virt_add_phys_encs(
 			return !enc ? -EINVAL : PTR_ERR(enc);
 		}
 
-		sde_enc->phys_encs[sde_enc->num_phys_encs] = enc;
-		++sde_enc->num_phys_encs;
+		sde_enc->phys_vid_encs[sde_enc->num_phys_encs] = enc;
 	}
 
 	if (display_caps & MSM_DISPLAY_CAP_CMD_MODE) {
@@ -5155,11 +5202,18 @@ static int sde_encoder_virt_add_phys_encs(
 				PTR_ERR(enc));
 			return !enc ? -EINVAL : PTR_ERR(enc);
 		}
-
-		sde_enc->phys_encs[sde_enc->num_phys_encs] = enc;
-		++sde_enc->num_phys_encs;
+		sde_enc->phys_cmd_encs[sde_enc->num_phys_encs] = enc;
 	}
 
+	if (disp_info->curr_panel_mode == MSM_DISPLAY_VIDEO_MODE)
+		sde_enc->phys_encs[sde_enc->num_phys_encs] =
+			sde_enc->phys_vid_encs[sde_enc->num_phys_encs];
+	else
+		sde_enc->phys_encs[sde_enc->num_phys_encs] =
+			sde_enc->phys_cmd_encs[sde_enc->num_phys_encs];
+
+	++sde_enc->num_phys_encs;
+
 	return 0;
 }
 
@@ -5308,7 +5362,7 @@ static int sde_encoder_setup_display(struct sde_encoder_virt *sde_enc,
 						&phys_params);
 			else
 				ret = sde_encoder_virt_add_phys_encs(
-						disp_info->capabilities,
+						disp_info,
 						sde_enc,
 						&phys_params);
 			if (ret)
@@ -5318,12 +5372,19 @@ static int sde_encoder_setup_display(struct sde_encoder_virt *sde_enc,
 	}
 
 	for (i = 0; i < sde_enc->num_phys_encs; i++) {
-		struct sde_encoder_phys *phys = sde_enc->phys_encs[i];
+		struct sde_encoder_phys *vid_phys = sde_enc->phys_vid_encs[i];
+		struct sde_encoder_phys *cmd_phys = sde_enc->phys_cmd_encs[i];
 
-		if (phys) {
-			atomic_set(&phys->vsync_cnt, 0);
-			atomic_set(&phys->underrun_cnt, 0);
+		if (vid_phys) {
+			atomic_set(&vid_phys->vsync_cnt, 0);
+			atomic_set(&vid_phys->underrun_cnt, 0);
+		}
+
+		if (cmd_phys) {
+			atomic_set(&cmd_phys->vsync_cnt, 0);
+			atomic_set(&cmd_phys->underrun_cnt, 0);
 		}
+
 	}
 	mutex_unlock(&sde_enc->enc_lock);
 
@@ -5398,7 +5459,7 @@ struct drm_encoder *sde_encoder_init(
 		sde_enc->rsc_client = NULL;
 	}
 
-	if (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE) {
+	if (disp_info->curr_panel_mode == MSM_DISPLAY_CMD_MODE) {
 		ret = _sde_encoder_input_handler(sde_enc);
 		if (ret)
 			SDE_ERROR(

msm/sde/sde_encoder.h

@@ -201,12 +201,12 @@ void sde_encoder_virt_restore(struct drm_encoder *encoder);
 bool sde_encoder_is_dsc_merge(struct drm_encoder *drm_enc);
 
 /**
- * sde_encoder_check_mode - check if given mode is supported or not
+ * sde_encoder_check_curr_mode - check if given mode is supported or not
  * @drm_enc: Pointer to drm encoder object
  * @mode: Mode to be checked
  * @Return: true if it is cmd mode
  */
-bool sde_encoder_check_mode(struct drm_encoder *drm_enc, u32 mode);
+bool sde_encoder_check_curr_mode(struct drm_encoder *drm_enc, u32 mode);
 
 /**
  * sde_encoder_init - initialize virtual encoder object