1 // SPDX-License-Identifier: GPL-2.0-only
7 #include "dsi.h"
22 	struct msm_dsi *dsi[DSI_MAX];  member
37 	return msm_dsim_glb.dsi[id];  in dsi_mgr_get_dsi()
42 	return msm_dsim_glb.dsi[(id + 1) % DSI_MAX];  in dsi_mgr_get_other_dsi()
49 	/* We assume 2 dsi nodes have the same information of bonded dsi and  in dsi_mgr_parse_of()
50 	 * sync-mode, and only one node specifies master in case of bonded mode.  in dsi_mgr_parse_of()
52 	if (!msm_dsim->is_bonded_dsi)  in dsi_mgr_parse_of()
53 		msm_dsim->is_bonded_dsi = of_property_read_bool(np, "qcom,dual-dsi-mode");  in dsi_mgr_parse_of()
55 	if (msm_dsim->is_bonded_dsi) {  in dsi_mgr_parse_of()
56 		if (of_property_read_bool(np, "qcom,master-dsi"))  in dsi_mgr_parse_of()
57 			msm_dsim->master_dsi_link_id = id;  in dsi_mgr_parse_of()
58 		if (!msm_dsim->is_sync_needed)  in dsi_mgr_parse_of()
59 			msm_dsim->is_sync_needed = of_property_read_bool(  in dsi_mgr_parse_of()
60 					np, "qcom,sync-dual-dsi");  in dsi_mgr_parse_of()
75 		ret = msm_dsi_host_register(msm_dsi->host, true);  in dsi_mgr_setup_components()
79 		msm_dsi_phy_set_usecase(msm_dsi->phy, MSM_DSI_PHY_STANDALONE);  in dsi_mgr_setup_components()
80 		ret = msm_dsi_host_set_src_pll(msm_dsi->host, msm_dsi->phy);  in dsi_mgr_setup_components()
88 		/* Register slave host first, so that slave DSI device  in dsi_mgr_setup_components()
90 		 * DSI device's probe.  in dsi_mgr_setup_components()
92 		 * because only master DSI device adds the panel to global  in dsi_mgr_setup_components()
93 		 * panel list. The panel's device is the master DSI device.  in dsi_mgr_setup_components()
95 		ret = msm_dsi_host_register(slave_link_dsi->host, false);  in dsi_mgr_setup_components()
98 		ret = msm_dsi_host_register(master_link_dsi->host, true);  in dsi_mgr_setup_components()
102 		/* PLL0 is to drive both 2 DSI link clocks in bonded DSI mode. */  in dsi_mgr_setup_components()
103 		msm_dsi_phy_set_usecase(clk_master_dsi->phy,  in dsi_mgr_setup_components()
105 		msm_dsi_phy_set_usecase(clk_slave_dsi->phy,  in dsi_mgr_setup_components()
107 		ret = msm_dsi_host_set_src_pll(msm_dsi->host, clk_master_dsi->phy);  in dsi_mgr_setup_components()
110 		ret = msm_dsi_host_set_src_pll(other_dsi->host, clk_master_dsi->phy);  in dsi_mgr_setup_components()
123 	msm_dsi_host_get_phy_clk_req(msm_dsi->host, &clk_req, is_bonded_dsi);  in enable_phy()
125 	ret = msm_dsi_phy_enable(msm_dsi->phy, &clk_req, shared_timings);  in enable_phy()
139 	/* In case of bonded DSI, some registers in PHY1 have been programmed  in dsi_mgr_phy_enable()
145 		if (!mdsi->phy_enabled && !sdsi->phy_enabled) {  in dsi_mgr_phy_enable()
146 			msm_dsi_host_reset_phy(mdsi->host);  in dsi_mgr_phy_enable()
147 			msm_dsi_host_reset_phy(sdsi->host);  in dsi_mgr_phy_enable()
156 				msm_dsi_phy_disable(mdsi->phy);  in dsi_mgr_phy_enable()
161 		msm_dsi_host_reset_phy(msm_dsi->host);  in dsi_mgr_phy_enable()
167 	msm_dsi->phy_enabled = true;  in dsi_mgr_phy_enable()
178 	/* disable DSI phy  in dsi_mgr_phy_disable()
179 	 * In bonded dsi configuration, the phy should be disabled for the  in dsi_mgr_phy_disable()
182 	msm_dsi->phy_enabled = false;  in dsi_mgr_phy_disable()
184 		if (!mdsi->phy_enabled && !sdsi->phy_enabled) {  in dsi_mgr_phy_disable()
185 			msm_dsi_phy_disable(sdsi->phy);  in dsi_mgr_phy_disable()
186 			msm_dsi_phy_disable(mdsi->phy);  in dsi_mgr_phy_disable()
189 		msm_dsi_phy_disable(msm_dsi->phy);  in dsi_mgr_phy_disable()
209 	return dsi_connector->id;  in dsi_mgr_connector_get_id()
215 	return dsi_bridge->id;  in dsi_mgr_bridge_get_id()
220 	struct msm_drm_private *priv = conn->dev->dev_private;  in msm_dsi_manager_panel_init()
221 	struct msm_kms *kms = priv->kms;  in msm_dsi_manager_panel_init()
236 	 * There is only 1 panel in the global panel list for bonded DSI mode.  in msm_dsi_manager_panel_init()
237 	 * Therefore slave dsi should get the drm_panel instance from master  in msm_dsi_manager_panel_init()
238 	 * dsi.  in msm_dsi_manager_panel_init()
240 	panel = msm_dsi_host_get_panel(master_dsi->host);  in msm_dsi_manager_panel_init()
242 		DRM_ERROR("Could not find panel for %u (%ld)\n", msm_dsi->id,  in msm_dsi_manager_panel_init()
250 	drm_object_attach_property(&conn->base,  in msm_dsi_manager_panel_init()
251 				   conn->dev->mode_config.tile_property, 0);  in msm_dsi_manager_panel_init()
254 	 * Set split display info to kms once bonded DSI panel is connected to  in msm_dsi_manager_panel_init()
257 	if (other_dsi && other_dsi->panel && kms->funcs->set_split_display) {  in msm_dsi_manager_panel_init()
258 		kms->funcs->set_split_display(kms, master_dsi->encoder,  in msm_dsi_manager_panel_init()
259 					      slave_dsi->encoder,  in msm_dsi_manager_panel_init()
264 	msm_dsi->panel = panel;  in msm_dsi_manager_panel_init()
274 	return msm_dsi->panel ? connector_status_connected :  in dsi_mgr_connector_detect()
293 	struct drm_panel *panel = msm_dsi->panel;  in dsi_mgr_connector_get_modes()
300 	 * In bonded DSI mode, we have one connector that can be  in dsi_mgr_connector_get_modes()
316 	struct msm_drm_private *priv = connector->dev->dev_private;  in dsi_mgr_connector_mode_valid()
317 	struct msm_kms *kms = priv->kms;  in dsi_mgr_connector_mode_valid()
321 	requested = 1000 * mode->clock;  in dsi_mgr_connector_mode_valid()
322 	actual = kms->funcs->round_pixclk(kms, requested, encoder);  in dsi_mgr_connector_mode_valid()
346 	struct mipi_dsi_host *host = msm_dsi->host;  in dsi_mgr_bridge_pre_enable()
347 	struct drm_panel *panel = msm_dsi->panel;  in dsi_mgr_bridge_pre_enable()
356 	/* Do nothing with the host if it is slave-DSI in case of bonded DSI */  in dsi_mgr_bridge_pre_enable()
364 	ret = msm_dsi_host_power_on(host, &phy_shared_timings[id], is_bonded_dsi, msm_dsi->phy);  in dsi_mgr_bridge_pre_enable()
371 		ret = msm_dsi_host_power_on(msm_dsi1->host,  in dsi_mgr_bridge_pre_enable()
372 				&phy_shared_timings[DSI_1], is_bonded_dsi, msm_dsi1->phy);  in dsi_mgr_bridge_pre_enable()
399 		ret = msm_dsi_host_enable(msm_dsi1->host);  in dsi_mgr_bridge_pre_enable()
415 		msm_dsi_host_power_off(msm_dsi1->host);  in dsi_mgr_bridge_pre_enable()
429 	/* if dual dsi, trigger tpg on master first then slave */  in msm_dsi_manager_tpg_enable()
431 		msm_dsi_host_test_pattern_en(m_dsi->host);  in msm_dsi_manager_tpg_enable()
433 			msm_dsi_host_test_pattern_en(s_dsi->host);  in msm_dsi_manager_tpg_enable()
441 	struct drm_panel *panel = msm_dsi->panel;  in dsi_mgr_bridge_enable()
449 	/* Do nothing with the host if it is slave-DSI in case of bonded DSI */  in dsi_mgr_bridge_enable()
466 	struct drm_panel *panel = msm_dsi->panel;  in dsi_mgr_bridge_disable()
474 	/* Do nothing with the host if it is slave-DSI in case of bonded DSI */  in dsi_mgr_bridge_disable()
491 	struct mipi_dsi_host *host = msm_dsi->host;  in dsi_mgr_bridge_post_disable()
492 	struct drm_panel *panel = msm_dsi->panel;  in dsi_mgr_bridge_post_disable()
502 	 * Do nothing with the host if it is slave-DSI in case of bonded DSI.  in dsi_mgr_bridge_post_disable()
503 	 * It is safe to call dsi_mgr_phy_disable() here because a single PHY  in dsi_mgr_bridge_post_disable()
514 		ret = msm_dsi_host_disable(msm_dsi1->host);  in dsi_mgr_bridge_post_disable()
526 	/* Save PHY status if it is a clock source */  in dsi_mgr_bridge_post_disable()
527 	msm_dsi_phy_pll_save_state(msm_dsi->phy);  in dsi_mgr_bridge_post_disable()
534 		ret = msm_dsi_host_power_off(msm_dsi1->host);  in dsi_mgr_bridge_post_disable()
551 	struct mipi_dsi_host *host = msm_dsi->host;  in dsi_mgr_bridge_mode_set()
561 		msm_dsi_host_set_display_mode(other_dsi->host, adjusted_mode);  in dsi_mgr_bridge_mode_set()
597 		return ERR_PTR(-ENOMEM);  in msm_dsi_manager_connector_init()
599 	dsi_connector->id = id;  in msm_dsi_manager_connector_init()
601 	connector = &dsi_connector->base;  in msm_dsi_manager_connector_init()
603 	ret = drm_connector_init(msm_dsi->dev, connector,  in msm_dsi_manager_connector_init()
613 	connector->polled = DRM_CONNECTOR_POLL_HPD;  in msm_dsi_manager_connector_init()
616 	connector->interlace_allowed = 0;  in msm_dsi_manager_connector_init()
617 	connector->doublescan_allowed = 0;  in msm_dsi_manager_connector_init()
619 	drm_connector_attach_encoder(connector, msm_dsi->encoder);  in msm_dsi_manager_connector_init()
623 		DRM_DEV_ERROR(msm_dsi->dev->dev, "init panel failed %d\n", ret);  in msm_dsi_manager_connector_init()
630 	connector->funcs->destroy(msm_dsi->connector);  in msm_dsi_manager_connector_init()
639 	 * For bonded DSI, we only have one drm panel. For this  in msm_dsi_manager_validate_current_config()
642 	 * slave-DSI for bonded DSI configuration.  in msm_dsi_manager_validate_current_config()
645 		DBG("Skip bridge registration for slave DSI->id: %d\n", id);  in msm_dsi_manager_validate_current_config()
660 	dsi_bridge = devm_kzalloc(msm_dsi->dev->dev,  in msm_dsi_manager_bridge_init()
663 		ret = -ENOMEM;  in msm_dsi_manager_bridge_init()
667 	dsi_bridge->id = id;  in msm_dsi_manager_bridge_init()
669 	encoder = msm_dsi->encoder;  in msm_dsi_manager_bridge_init()
671 	bridge = &dsi_bridge->base;  in msm_dsi_manager_bridge_init()
672 	bridge->funcs = &dsi_mgr_bridge_funcs;  in msm_dsi_manager_bridge_init()
690 	struct drm_device *dev = msm_dsi->dev;  in msm_dsi_manager_ext_bridge_init()
696 	int_bridge = msm_dsi->bridge;  in msm_dsi_manager_ext_bridge_init()
697 	ext_bridge = msm_dsi->external_bridge =  in msm_dsi_manager_ext_bridge_init()
698 			msm_dsi_host_get_bridge(msm_dsi->host);  in msm_dsi_manager_ext_bridge_init()
700 	encoder = msm_dsi->encoder;  in msm_dsi_manager_ext_bridge_init()
702 	/* link the internal dsi bridge to the external bridge */  in msm_dsi_manager_ext_bridge_init()
708 	 * priv->connector[] list, mainly for msm_fbdev_init()  in msm_dsi_manager_ext_bridge_init()
710 	connector_list = &dev->mode_config.connector_list;  in msm_dsi_manager_ext_bridge_init()
717 	return ERR_PTR(-ENODEV);  in msm_dsi_manager_ext_bridge_init()
728 	struct mipi_dsi_host *host = msm_dsi->host;  in msm_dsi_manager_cmd_xfer()
729 	bool is_read = (msg->rx_buf && msg->rx_len);  in msm_dsi_manager_cmd_xfer()
733 	if (!msg->tx_buf || !msg->tx_len)  in msm_dsi_manager_cmd_xfer()
737 	 * both DSI links. Host issues the command trigger to both links  in msm_dsi_manager_cmd_xfer()
742 		return is_read ? msg->rx_len : msg->tx_len;  in msm_dsi_manager_cmd_xfer()
745 		ret = msm_dsi_host_xfer_prepare(msm_dsi0->host, msg);  in msm_dsi_manager_cmd_xfer()
747 			pr_err("%s: failed to prepare non-trigger host, %d\n",  in msm_dsi_manager_cmd_xfer()
765 		msm_dsi_host_xfer_restore(msm_dsi0->host, msg);  in msm_dsi_manager_cmd_xfer()
774 	struct mipi_dsi_host *host = msm_dsi->host;  in msm_dsi_manager_cmd_xfer_trigger()
780 		msm_dsi_host_cmd_xfer_commit(msm_dsi0->host, dma_base, len);  in msm_dsi_manager_cmd_xfer_trigger()
790 	int id = msm_dsi->id;  in msm_dsi_manager_register()
795 		return -EINVAL;  in msm_dsi_manager_register()
798 	if (msm_dsim->dsi[id]) {  in msm_dsi_manager_register()
799 		pr_err("%s: dsi%d already registered\n", __func__, id);  in msm_dsi_manager_register()
800 		return -EBUSY;  in msm_dsi_manager_register()
803 	msm_dsim->dsi[id] = msm_dsi;  in msm_dsi_manager_register()
805 	ret = dsi_mgr_parse_of(msm_dsi->pdev->dev.of_node, id);  in msm_dsi_manager_register()
807 		pr_err("%s: failed to parse OF DSI info\n", __func__);  in msm_dsi_manager_register()
813 		pr_err("%s: failed to register mipi dsi host for DSI %d: %d\n",  in msm_dsi_manager_register()
821 	msm_dsim->dsi[id] = NULL;  in msm_dsi_manager_register()
829 	if (msm_dsi->host)  in msm_dsi_manager_unregister()
830 		msm_dsi_host_unregister(msm_dsi->host);  in msm_dsi_manager_unregister()
832 	if (msm_dsi->id >= 0)  in msm_dsi_manager_unregister()
833 		msm_dsim->dsi[msm_dsi->id] = NULL;  in msm_dsi_manager_unregister()
843 	return IS_MASTER_DSI_LINK(msm_dsi->id);  in msm_dsi_is_master_dsi()