1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
9 #define DSI_CLOCK_MASTER DSI_0
10 #define DSI_CLOCK_SLAVE DSI_1
12 #define DSI_LEFT DSI_0
13 #define DSI_RIGHT DSI_1
15 /* According to the current drm framework sequence, take the encoder of
16 * DSI_1 as master encoder
18 #define DSI_ENCODER_MASTER DSI_1
19 #define DSI_ENCODER_SLAVE DSI_0
21 struct msm_dsi_manager {
22 struct msm_dsi *dsi[DSI_MAX];
26 int master_dsi_link_id;
29 static struct msm_dsi_manager msm_dsim_glb;
31 #define IS_BONDED_DSI() (msm_dsim_glb.is_bonded_dsi)
32 #define IS_SYNC_NEEDED() (msm_dsim_glb.is_sync_needed)
33 #define IS_MASTER_DSI_LINK(id) (msm_dsim_glb.master_dsi_link_id == id)
35 static inline struct msm_dsi *dsi_mgr_get_dsi(int id)
37 return msm_dsim_glb.dsi[id];
40 static inline struct msm_dsi *dsi_mgr_get_other_dsi(int id)
42 return msm_dsim_glb.dsi[(id + 1) % DSI_MAX];
45 static int dsi_mgr_parse_of(struct device_node *np, int id)
47 struct msm_dsi_manager *msm_dsim = &msm_dsim_glb;
49 /* We assume 2 dsi nodes have the same information of bonded dsi and
50 * sync-mode, and only one node specifies master in case of bonded mode.
52 if (!msm_dsim->is_bonded_dsi)
53 msm_dsim->is_bonded_dsi = of_property_read_bool(np, "qcom,dual-dsi-mode");
55 if (msm_dsim->is_bonded_dsi) {
56 if (of_property_read_bool(np, "qcom,master-dsi"))
57 msm_dsim->master_dsi_link_id = id;
58 if (!msm_dsim->is_sync_needed)
59 msm_dsim->is_sync_needed = of_property_read_bool(
60 np, "qcom,sync-dual-dsi");
66 static int dsi_mgr_setup_components(int id)
68 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
69 struct msm_dsi *other_dsi = dsi_mgr_get_other_dsi(id);
70 struct msm_dsi *clk_master_dsi = dsi_mgr_get_dsi(DSI_CLOCK_MASTER);
71 struct msm_dsi *clk_slave_dsi = dsi_mgr_get_dsi(DSI_CLOCK_SLAVE);
74 if (!IS_BONDED_DSI()) {
75 ret = msm_dsi_host_register(msm_dsi->host);
79 msm_dsi_phy_set_usecase(msm_dsi->phy, MSM_DSI_PHY_STANDALONE);
80 ret = msm_dsi_host_set_src_pll(msm_dsi->host, msm_dsi->phy);
81 } else if (!other_dsi) {
84 struct msm_dsi *master_link_dsi = IS_MASTER_DSI_LINK(id) ?
86 struct msm_dsi *slave_link_dsi = IS_MASTER_DSI_LINK(id) ?
88 /* Register slave host first, so that slave DSI device
89 * has a chance to probe, and do not block the master
91 * Also, do not check defer for the slave host,
92 * because only master DSI device adds the panel to global
93 * panel list. The panel's device is the master DSI device.
95 ret = msm_dsi_host_register(slave_link_dsi->host);
98 ret = msm_dsi_host_register(master_link_dsi->host);
102 /* PLL0 is to drive both 2 DSI link clocks in bonded DSI mode. */
103 msm_dsi_phy_set_usecase(clk_master_dsi->phy,
105 msm_dsi_phy_set_usecase(clk_slave_dsi->phy,
107 ret = msm_dsi_host_set_src_pll(msm_dsi->host, clk_master_dsi->phy);
110 ret = msm_dsi_host_set_src_pll(other_dsi->host, clk_master_dsi->phy);
116 static int enable_phy(struct msm_dsi *msm_dsi,
117 struct msm_dsi_phy_shared_timings *shared_timings)
119 struct msm_dsi_phy_clk_request clk_req;
121 bool is_bonded_dsi = IS_BONDED_DSI();
123 msm_dsi_host_get_phy_clk_req(msm_dsi->host, &clk_req, is_bonded_dsi);
125 ret = msm_dsi_phy_enable(msm_dsi->phy, &clk_req, shared_timings);
131 dsi_mgr_phy_enable(int id,
132 struct msm_dsi_phy_shared_timings shared_timings[DSI_MAX])
134 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
135 struct msm_dsi *mdsi = dsi_mgr_get_dsi(DSI_CLOCK_MASTER);
136 struct msm_dsi *sdsi = dsi_mgr_get_dsi(DSI_CLOCK_SLAVE);
139 /* In case of bonded DSI, some registers in PHY1 have been programmed
140 * during PLL0 clock's set_rate. The PHY1 reset called by host1 here
141 * will silently reset those PHY1 registers. Therefore we need to reset
142 * and enable both PHYs before any PLL clock operation.
144 if (IS_BONDED_DSI() && mdsi && sdsi) {
145 if (!mdsi->phy_enabled && !sdsi->phy_enabled) {
146 msm_dsi_host_reset_phy(mdsi->host);
147 msm_dsi_host_reset_phy(sdsi->host);
149 ret = enable_phy(mdsi,
150 &shared_timings[DSI_CLOCK_MASTER]);
153 ret = enable_phy(sdsi,
154 &shared_timings[DSI_CLOCK_SLAVE]);
156 msm_dsi_phy_disable(mdsi->phy);
161 msm_dsi_host_reset_phy(msm_dsi->host);
162 ret = enable_phy(msm_dsi, &shared_timings[id]);
167 msm_dsi->phy_enabled = true;
172 static void dsi_mgr_phy_disable(int id)
174 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
175 struct msm_dsi *mdsi = dsi_mgr_get_dsi(DSI_CLOCK_MASTER);
176 struct msm_dsi *sdsi = dsi_mgr_get_dsi(DSI_CLOCK_SLAVE);
179 * In bonded dsi configuration, the phy should be disabled for the
180 * first controller only when the second controller is disabled.
182 msm_dsi->phy_enabled = false;
183 if (IS_BONDED_DSI() && mdsi && sdsi) {
184 if (!mdsi->phy_enabled && !sdsi->phy_enabled) {
185 msm_dsi_phy_disable(sdsi->phy);
186 msm_dsi_phy_disable(mdsi->phy);
189 msm_dsi_phy_disable(msm_dsi->phy);
193 struct dsi_connector {
194 struct drm_connector base;
199 struct drm_bridge base;
203 #define to_dsi_connector(x) container_of(x, struct dsi_connector, base)
204 #define to_dsi_bridge(x) container_of(x, struct dsi_bridge, base)
206 static inline int dsi_mgr_connector_get_id(struct drm_connector *connector)
208 struct dsi_connector *dsi_connector = to_dsi_connector(connector);
209 return dsi_connector->id;
212 static int dsi_mgr_bridge_get_id(struct drm_bridge *bridge)
214 struct dsi_bridge *dsi_bridge = to_dsi_bridge(bridge);
215 return dsi_bridge->id;
218 static int msm_dsi_manager_panel_init(struct drm_connector *conn, u8 id)
220 struct msm_drm_private *priv = conn->dev->dev_private;
221 struct msm_kms *kms = priv->kms;
222 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
223 struct msm_dsi *other_dsi = dsi_mgr_get_other_dsi(id);
224 struct msm_dsi *master_dsi, *slave_dsi;
225 struct drm_panel *panel;
227 if (IS_BONDED_DSI() && !IS_MASTER_DSI_LINK(id)) {
228 master_dsi = other_dsi;
231 master_dsi = msm_dsi;
232 slave_dsi = other_dsi;
236 * There is only 1 panel in the global panel list for bonded DSI mode.
237 * Therefore slave dsi should get the drm_panel instance from master
240 panel = msm_dsi_host_get_panel(master_dsi->host);
242 DRM_ERROR("Could not find panel for %u (%ld)\n", msm_dsi->id,
244 return PTR_ERR(panel);
247 if (!panel || !IS_BONDED_DSI())
250 drm_object_attach_property(&conn->base,
251 conn->dev->mode_config.tile_property, 0);
254 * Set split display info to kms once bonded DSI panel is connected to
257 if (other_dsi && other_dsi->panel && kms->funcs->set_split_display) {
258 kms->funcs->set_split_display(kms, master_dsi->encoder,
260 msm_dsi_is_cmd_mode(msm_dsi));
264 msm_dsi->panel = panel;
268 static enum drm_connector_status dsi_mgr_connector_detect(
269 struct drm_connector *connector, bool force)
271 int id = dsi_mgr_connector_get_id(connector);
272 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
274 return msm_dsi->panel ? connector_status_connected :
275 connector_status_disconnected;
278 static void dsi_mgr_connector_destroy(struct drm_connector *connector)
280 struct dsi_connector *dsi_connector = to_dsi_connector(connector);
284 drm_connector_cleanup(connector);
286 kfree(dsi_connector);
289 static int dsi_mgr_connector_get_modes(struct drm_connector *connector)
291 int id = dsi_mgr_connector_get_id(connector);
292 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
293 struct drm_panel *panel = msm_dsi->panel;
300 * In bonded DSI mode, we have one connector that can be
301 * attached to the drm_panel.
303 num = drm_panel_get_modes(panel, connector);
310 static enum drm_mode_status dsi_mgr_connector_mode_valid(struct drm_connector *connector,
311 struct drm_display_mode *mode)
313 int id = dsi_mgr_connector_get_id(connector);
314 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
315 struct drm_encoder *encoder = msm_dsi_get_encoder(msm_dsi);
316 struct msm_drm_private *priv = connector->dev->dev_private;
317 struct msm_kms *kms = priv->kms;
318 long actual, requested;
321 requested = 1000 * mode->clock;
322 actual = kms->funcs->round_pixclk(kms, requested, encoder);
324 DBG("requested=%ld, actual=%ld", requested, actual);
325 if (actual != requested)
326 return MODE_CLOCK_RANGE;
331 static struct drm_encoder *
332 dsi_mgr_connector_best_encoder(struct drm_connector *connector)
334 int id = dsi_mgr_connector_get_id(connector);
335 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
338 return msm_dsi_get_encoder(msm_dsi);
341 static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge)
343 int id = dsi_mgr_bridge_get_id(bridge);
344 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
345 struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
346 struct mipi_dsi_host *host = msm_dsi->host;
347 struct drm_panel *panel = msm_dsi->panel;
348 struct msm_dsi_phy_shared_timings phy_shared_timings[DSI_MAX];
349 bool is_bonded_dsi = IS_BONDED_DSI();
353 if (!msm_dsi_device_connected(msm_dsi))
356 /* Do nothing with the host if it is slave-DSI in case of bonded DSI */
357 if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id))
360 ret = dsi_mgr_phy_enable(id, phy_shared_timings);
364 ret = msm_dsi_host_power_on(host, &phy_shared_timings[id], is_bonded_dsi, msm_dsi->phy);
366 pr_err("%s: power on host %d failed, %d\n", __func__, id, ret);
370 if (is_bonded_dsi && msm_dsi1) {
371 ret = msm_dsi_host_power_on(msm_dsi1->host,
372 &phy_shared_timings[DSI_1], is_bonded_dsi, msm_dsi1->phy);
374 pr_err("%s: power on host1 failed, %d\n",
380 /* Always call panel functions once, because even for dual panels,
381 * there is only one drm_panel instance.
384 ret = drm_panel_prepare(panel);
386 pr_err("%s: prepare panel %d failed, %d\n", __func__,
388 goto panel_prep_fail;
392 ret = msm_dsi_host_enable(host);
394 pr_err("%s: enable host %d failed, %d\n", __func__, id, ret);
398 if (is_bonded_dsi && msm_dsi1) {
399 ret = msm_dsi_host_enable(msm_dsi1->host);
401 pr_err("%s: enable host1 failed, %d\n", __func__, ret);
409 msm_dsi_host_disable(host);
412 drm_panel_unprepare(panel);
414 if (is_bonded_dsi && msm_dsi1)
415 msm_dsi_host_power_off(msm_dsi1->host);
417 msm_dsi_host_power_off(host);
419 dsi_mgr_phy_disable(id);
424 void msm_dsi_manager_tpg_enable(void)
426 struct msm_dsi *m_dsi = dsi_mgr_get_dsi(DSI_0);
427 struct msm_dsi *s_dsi = dsi_mgr_get_dsi(DSI_1);
429 /* if dual dsi, trigger tpg on master first then slave */
431 msm_dsi_host_test_pattern_en(m_dsi->host);
432 if (IS_BONDED_DSI() && s_dsi)
433 msm_dsi_host_test_pattern_en(s_dsi->host);
437 static void dsi_mgr_bridge_enable(struct drm_bridge *bridge)
439 int id = dsi_mgr_bridge_get_id(bridge);
440 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
441 struct drm_panel *panel = msm_dsi->panel;
442 bool is_bonded_dsi = IS_BONDED_DSI();
446 if (!msm_dsi_device_connected(msm_dsi))
449 /* Do nothing with the host if it is slave-DSI in case of bonded DSI */
450 if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id))
454 ret = drm_panel_enable(panel);
456 pr_err("%s: enable panel %d failed, %d\n", __func__, id,
462 static void dsi_mgr_bridge_disable(struct drm_bridge *bridge)
464 int id = dsi_mgr_bridge_get_id(bridge);
465 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
466 struct drm_panel *panel = msm_dsi->panel;
467 bool is_bonded_dsi = IS_BONDED_DSI();
471 if (!msm_dsi_device_connected(msm_dsi))
474 /* Do nothing with the host if it is slave-DSI in case of bonded DSI */
475 if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id))
479 ret = drm_panel_disable(panel);
481 pr_err("%s: Panel %d OFF failed, %d\n", __func__, id,
486 static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
488 int id = dsi_mgr_bridge_get_id(bridge);
489 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
490 struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
491 struct mipi_dsi_host *host = msm_dsi->host;
492 struct drm_panel *panel = msm_dsi->panel;
493 bool is_bonded_dsi = IS_BONDED_DSI();
498 if (!msm_dsi_device_connected(msm_dsi))
502 * Do nothing with the host if it is slave-DSI in case of bonded DSI.
503 * It is safe to call dsi_mgr_phy_disable() here because a single PHY
504 * won't be diabled until both PHYs request disable.
506 if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id))
509 ret = msm_dsi_host_disable(host);
511 pr_err("%s: host %d disable failed, %d\n", __func__, id, ret);
513 if (is_bonded_dsi && msm_dsi1) {
514 ret = msm_dsi_host_disable(msm_dsi1->host);
516 pr_err("%s: host1 disable failed, %d\n", __func__, ret);
520 ret = drm_panel_unprepare(panel);
522 pr_err("%s: Panel %d unprepare failed,%d\n", __func__,
526 /* Save PHY status if it is a clock source */
527 msm_dsi_phy_pll_save_state(msm_dsi->phy);
529 ret = msm_dsi_host_power_off(host);
531 pr_err("%s: host %d power off failed,%d\n", __func__, id, ret);
533 if (is_bonded_dsi && msm_dsi1) {
534 ret = msm_dsi_host_power_off(msm_dsi1->host);
536 pr_err("%s: host1 power off failed, %d\n",
541 dsi_mgr_phy_disable(id);
544 static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge,
545 const struct drm_display_mode *mode,
546 const struct drm_display_mode *adjusted_mode)
548 int id = dsi_mgr_bridge_get_id(bridge);
549 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
550 struct msm_dsi *other_dsi = dsi_mgr_get_other_dsi(id);
551 struct mipi_dsi_host *host = msm_dsi->host;
552 bool is_bonded_dsi = IS_BONDED_DSI();
554 DBG("set mode: " DRM_MODE_FMT, DRM_MODE_ARG(mode));
556 if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id))
559 msm_dsi_host_set_display_mode(host, adjusted_mode);
560 if (is_bonded_dsi && other_dsi)
561 msm_dsi_host_set_display_mode(other_dsi->host, adjusted_mode);
564 static const struct drm_connector_funcs dsi_mgr_connector_funcs = {
565 .detect = dsi_mgr_connector_detect,
566 .fill_modes = drm_helper_probe_single_connector_modes,
567 .destroy = dsi_mgr_connector_destroy,
568 .reset = drm_atomic_helper_connector_reset,
569 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
570 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
573 static const struct drm_connector_helper_funcs dsi_mgr_conn_helper_funcs = {
574 .get_modes = dsi_mgr_connector_get_modes,
575 .mode_valid = dsi_mgr_connector_mode_valid,
576 .best_encoder = dsi_mgr_connector_best_encoder,
579 static const struct drm_bridge_funcs dsi_mgr_bridge_funcs = {
580 .pre_enable = dsi_mgr_bridge_pre_enable,
581 .enable = dsi_mgr_bridge_enable,
582 .disable = dsi_mgr_bridge_disable,
583 .post_disable = dsi_mgr_bridge_post_disable,
584 .mode_set = dsi_mgr_bridge_mode_set,
587 /* initialize connector when we're connected to a drm_panel */
588 struct drm_connector *msm_dsi_manager_connector_init(u8 id)
590 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
591 struct drm_connector *connector = NULL;
592 struct dsi_connector *dsi_connector;
595 dsi_connector = kzalloc(sizeof(*dsi_connector), GFP_KERNEL);
597 return ERR_PTR(-ENOMEM);
599 dsi_connector->id = id;
601 connector = &dsi_connector->base;
603 ret = drm_connector_init(msm_dsi->dev, connector,
604 &dsi_mgr_connector_funcs, DRM_MODE_CONNECTOR_DSI);
608 drm_connector_helper_add(connector, &dsi_mgr_conn_helper_funcs);
610 /* Enable HPD to let hpd event is handled
611 * when panel is attached to the host.
613 connector->polled = DRM_CONNECTOR_POLL_HPD;
615 /* Display driver doesn't support interlace now. */
616 connector->interlace_allowed = 0;
617 connector->doublescan_allowed = 0;
619 drm_connector_attach_encoder(connector, msm_dsi->encoder);
621 ret = msm_dsi_manager_panel_init(connector, id);
623 DRM_DEV_ERROR(msm_dsi->dev->dev, "init panel failed %d\n", ret);
630 connector->funcs->destroy(msm_dsi->connector);
634 bool msm_dsi_manager_validate_current_config(u8 id)
636 bool is_bonded_dsi = IS_BONDED_DSI();
639 * For bonded DSI, we only have one drm panel. For this
640 * use case, we register only one bridge/connector.
641 * Skip bridge/connector initialisation if it is
642 * slave-DSI for bonded DSI configuration.
644 if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id)) {
645 DBG("Skip bridge registration for slave DSI->id: %d\n", id);
651 /* initialize bridge */
652 struct drm_bridge *msm_dsi_manager_bridge_init(u8 id)
654 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
655 struct drm_bridge *bridge = NULL;
656 struct dsi_bridge *dsi_bridge;
657 struct drm_encoder *encoder;
660 dsi_bridge = devm_kzalloc(msm_dsi->dev->dev,
661 sizeof(*dsi_bridge), GFP_KERNEL);
669 encoder = msm_dsi->encoder;
671 bridge = &dsi_bridge->base;
672 bridge->funcs = &dsi_mgr_bridge_funcs;
674 ret = drm_bridge_attach(encoder, bridge, NULL, 0);
682 msm_dsi_manager_bridge_destroy(bridge);
687 struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id)
689 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
690 struct drm_device *dev = msm_dsi->dev;
691 struct drm_encoder *encoder;
692 struct drm_bridge *int_bridge, *ext_bridge;
693 struct drm_connector *connector;
694 struct list_head *connector_list;
696 int_bridge = msm_dsi->bridge;
697 ext_bridge = msm_dsi->external_bridge =
698 msm_dsi_host_get_bridge(msm_dsi->host);
700 encoder = msm_dsi->encoder;
702 /* link the internal dsi bridge to the external bridge */
703 drm_bridge_attach(encoder, ext_bridge, int_bridge, 0);
706 * we need the drm_connector created by the external bridge
707 * driver (or someone else) to feed it to our driver's
708 * priv->connector[] list, mainly for msm_fbdev_init()
710 connector_list = &dev->mode_config.connector_list;
712 list_for_each_entry(connector, connector_list, head) {
713 if (drm_connector_has_possible_encoder(connector, encoder))
717 return ERR_PTR(-ENODEV);
720 void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge)
724 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg)
726 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
727 struct msm_dsi *msm_dsi0 = dsi_mgr_get_dsi(DSI_0);
728 struct mipi_dsi_host *host = msm_dsi->host;
729 bool is_read = (msg->rx_buf && msg->rx_len);
730 bool need_sync = (IS_SYNC_NEEDED() && !is_read);
733 if (!msg->tx_buf || !msg->tx_len)
736 /* In bonded master case, panel requires the same commands sent to
737 * both DSI links. Host issues the command trigger to both links
738 * when DSI_1 calls the cmd transfer function, no matter it happens
739 * before or after DSI_0 cmd transfer.
741 if (need_sync && (id == DSI_0))
742 return is_read ? msg->rx_len : msg->tx_len;
744 if (need_sync && msm_dsi0) {
745 ret = msm_dsi_host_xfer_prepare(msm_dsi0->host, msg);
747 pr_err("%s: failed to prepare non-trigger host, %d\n",
752 ret = msm_dsi_host_xfer_prepare(host, msg);
754 pr_err("%s: failed to prepare host, %d\n", __func__, ret);
758 ret = is_read ? msm_dsi_host_cmd_rx(host, msg) :
759 msm_dsi_host_cmd_tx(host, msg);
761 msm_dsi_host_xfer_restore(host, msg);
764 if (need_sync && msm_dsi0)
765 msm_dsi_host_xfer_restore(msm_dsi0->host, msg);
770 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len)
772 struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
773 struct msm_dsi *msm_dsi0 = dsi_mgr_get_dsi(DSI_0);
774 struct mipi_dsi_host *host = msm_dsi->host;
776 if (IS_SYNC_NEEDED() && (id == DSI_0))
779 if (IS_SYNC_NEEDED() && msm_dsi0)
780 msm_dsi_host_cmd_xfer_commit(msm_dsi0->host, dma_base, len);
782 msm_dsi_host_cmd_xfer_commit(host, dma_base, len);
787 int msm_dsi_manager_register(struct msm_dsi *msm_dsi)
789 struct msm_dsi_manager *msm_dsim = &msm_dsim_glb;
790 int id = msm_dsi->id;
794 pr_err("%s: invalid id %d\n", __func__, id);
798 if (msm_dsim->dsi[id]) {
799 pr_err("%s: dsi%d already registered\n", __func__, id);
803 msm_dsim->dsi[id] = msm_dsi;
805 ret = dsi_mgr_parse_of(msm_dsi->pdev->dev.of_node, id);
807 pr_err("%s: failed to parse OF DSI info\n", __func__);
811 ret = dsi_mgr_setup_components(id);
813 pr_err("%s: failed to register mipi dsi host for DSI %d: %d\n",
821 msm_dsim->dsi[id] = NULL;
825 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi)
827 struct msm_dsi_manager *msm_dsim = &msm_dsim_glb;
830 msm_dsi_host_unregister(msm_dsi->host);
832 if (msm_dsi->id >= 0)
833 msm_dsim->dsi[msm_dsi->id] = NULL;
836 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi)
838 return IS_BONDED_DSI();
841 bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
843 return IS_MASTER_DSI_LINK(msm_dsi->id);