]> Git Repo - J-linux.git/blob - drivers/gpu/drm/msm/dsi/dsi_manager.c
Merge tag 'vfs-6.13-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
[J-linux.git] / drivers / gpu / drm / msm / dsi / dsi_manager.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (c) 2015, The Linux Foundation. All rights reserved.
4  */
5
6 #include "drm/drm_bridge_connector.h"
7
8 #include "msm_kms.h"
9 #include "dsi.h"
10
11 #define DSI_CLOCK_MASTER        DSI_0
12 #define DSI_CLOCK_SLAVE         DSI_1
13
14 #define DSI_LEFT                DSI_0
15 #define DSI_RIGHT               DSI_1
16
17 /* According to the current drm framework sequence, take the encoder of
18  * DSI_1 as master encoder
19  */
20 #define DSI_ENCODER_MASTER      DSI_1
21 #define DSI_ENCODER_SLAVE       DSI_0
22
23 struct msm_dsi_manager {
24         struct msm_dsi *dsi[DSI_MAX];
25
26         bool is_bonded_dsi;
27         bool is_sync_needed;
28         int master_dsi_link_id;
29 };
30
31 static struct msm_dsi_manager msm_dsim_glb;
32
33 #define IS_BONDED_DSI()         (msm_dsim_glb.is_bonded_dsi)
34 #define IS_SYNC_NEEDED()        (msm_dsim_glb.is_sync_needed)
35 #define IS_MASTER_DSI_LINK(id)  (msm_dsim_glb.master_dsi_link_id == id)
36
37 static inline struct msm_dsi *dsi_mgr_get_dsi(int id)
38 {
39         return msm_dsim_glb.dsi[id];
40 }
41
42 static inline struct msm_dsi *dsi_mgr_get_other_dsi(int id)
43 {
44         return msm_dsim_glb.dsi[(id + 1) % DSI_MAX];
45 }
46
47 static int dsi_mgr_parse_of(struct device_node *np, int id)
48 {
49         struct msm_dsi_manager *msm_dsim = &msm_dsim_glb;
50
51         /* We assume 2 dsi nodes have the same information of bonded dsi and
52          * sync-mode, and only one node specifies master in case of bonded mode.
53          */
54         if (!msm_dsim->is_bonded_dsi)
55                 msm_dsim->is_bonded_dsi = of_property_read_bool(np, "qcom,dual-dsi-mode");
56
57         if (msm_dsim->is_bonded_dsi) {
58                 if (of_property_read_bool(np, "qcom,master-dsi"))
59                         msm_dsim->master_dsi_link_id = id;
60                 if (!msm_dsim->is_sync_needed)
61                         msm_dsim->is_sync_needed = of_property_read_bool(
62                                         np, "qcom,sync-dual-dsi");
63         }
64
65         return 0;
66 }
67
68 static int dsi_mgr_setup_components(int id)
69 {
70         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
71         struct msm_dsi *other_dsi = dsi_mgr_get_other_dsi(id);
72         struct msm_dsi *clk_master_dsi = dsi_mgr_get_dsi(DSI_CLOCK_MASTER);
73         struct msm_dsi *clk_slave_dsi = dsi_mgr_get_dsi(DSI_CLOCK_SLAVE);
74         int ret;
75
76         if (!IS_BONDED_DSI()) {
77                 ret = msm_dsi_host_register(msm_dsi->host);
78                 if (ret)
79                         return ret;
80
81                 msm_dsi_phy_set_usecase(msm_dsi->phy, MSM_DSI_PHY_STANDALONE);
82                 msm_dsi_host_set_phy_mode(msm_dsi->host, msm_dsi->phy);
83         } else if (other_dsi) {
84                 struct msm_dsi *master_link_dsi = IS_MASTER_DSI_LINK(id) ?
85                                                         msm_dsi : other_dsi;
86                 struct msm_dsi *slave_link_dsi = IS_MASTER_DSI_LINK(id) ?
87                                                         other_dsi : msm_dsi;
88                 /* Register slave host first, so that slave DSI device
89                  * has a chance to probe, and do not block the master
90                  * DSI device's probe.
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.
94                  */
95                 ret = msm_dsi_host_register(slave_link_dsi->host);
96                 if (ret)
97                         return ret;
98                 ret = msm_dsi_host_register(master_link_dsi->host);
99                 if (ret)
100                         return ret;
101
102                 /* PLL0 is to drive both 2 DSI link clocks in bonded DSI mode. */
103                 msm_dsi_phy_set_usecase(clk_master_dsi->phy,
104                                         MSM_DSI_PHY_MASTER);
105                 msm_dsi_phy_set_usecase(clk_slave_dsi->phy,
106                                         MSM_DSI_PHY_SLAVE);
107                 msm_dsi_host_set_phy_mode(msm_dsi->host, msm_dsi->phy);
108                 msm_dsi_host_set_phy_mode(other_dsi->host, other_dsi->phy);
109         }
110
111         return 0;
112 }
113
114 static int enable_phy(struct msm_dsi *msm_dsi,
115                       struct msm_dsi_phy_shared_timings *shared_timings)
116 {
117         struct msm_dsi_phy_clk_request clk_req;
118         bool is_bonded_dsi = IS_BONDED_DSI();
119
120         msm_dsi_host_get_phy_clk_req(msm_dsi->host, &clk_req, is_bonded_dsi);
121
122         return msm_dsi_phy_enable(msm_dsi->phy, &clk_req, shared_timings);
123 }
124
125 static int
126 dsi_mgr_phy_enable(int id,
127                    struct msm_dsi_phy_shared_timings shared_timings[DSI_MAX])
128 {
129         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
130         struct msm_dsi *mdsi = dsi_mgr_get_dsi(DSI_CLOCK_MASTER);
131         struct msm_dsi *sdsi = dsi_mgr_get_dsi(DSI_CLOCK_SLAVE);
132         int ret;
133
134         /* In case of bonded DSI, some registers in PHY1 have been programmed
135          * during PLL0 clock's set_rate. The PHY1 reset called by host1 here
136          * will silently reset those PHY1 registers. Therefore we need to reset
137          * and enable both PHYs before any PLL clock operation.
138          */
139         if (IS_BONDED_DSI() && mdsi && sdsi) {
140                 if (!mdsi->phy_enabled && !sdsi->phy_enabled) {
141                         msm_dsi_host_reset_phy(mdsi->host);
142                         msm_dsi_host_reset_phy(sdsi->host);
143
144                         ret = enable_phy(mdsi,
145                                          &shared_timings[DSI_CLOCK_MASTER]);
146                         if (ret)
147                                 return ret;
148                         ret = enable_phy(sdsi,
149                                          &shared_timings[DSI_CLOCK_SLAVE]);
150                         if (ret) {
151                                 msm_dsi_phy_disable(mdsi->phy);
152                                 return ret;
153                         }
154                 }
155         } else {
156                 msm_dsi_host_reset_phy(msm_dsi->host);
157                 ret = enable_phy(msm_dsi, &shared_timings[id]);
158                 if (ret)
159                         return ret;
160         }
161
162         msm_dsi->phy_enabled = true;
163
164         return 0;
165 }
166
167 static void dsi_mgr_phy_disable(int id)
168 {
169         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
170         struct msm_dsi *mdsi = dsi_mgr_get_dsi(DSI_CLOCK_MASTER);
171         struct msm_dsi *sdsi = dsi_mgr_get_dsi(DSI_CLOCK_SLAVE);
172
173         /* disable DSI phy
174          * In bonded dsi configuration, the phy should be disabled for the
175          * first controller only when the second controller is disabled.
176          */
177         msm_dsi->phy_enabled = false;
178         if (IS_BONDED_DSI() && mdsi && sdsi) {
179                 if (!mdsi->phy_enabled && !sdsi->phy_enabled) {
180                         msm_dsi_phy_disable(sdsi->phy);
181                         msm_dsi_phy_disable(mdsi->phy);
182                 }
183         } else {
184                 msm_dsi_phy_disable(msm_dsi->phy);
185         }
186 }
187
188 struct dsi_bridge {
189         struct drm_bridge base;
190         int id;
191 };
192
193 #define to_dsi_bridge(x) container_of(x, struct dsi_bridge, base)
194
195 static int dsi_mgr_bridge_get_id(struct drm_bridge *bridge)
196 {
197         struct dsi_bridge *dsi_bridge = to_dsi_bridge(bridge);
198         return dsi_bridge->id;
199 }
200
201 static int dsi_mgr_bridge_power_on(struct drm_bridge *bridge)
202 {
203         int id = dsi_mgr_bridge_get_id(bridge);
204         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
205         struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
206         struct mipi_dsi_host *host = msm_dsi->host;
207         struct msm_dsi_phy_shared_timings phy_shared_timings[DSI_MAX];
208         bool is_bonded_dsi = IS_BONDED_DSI();
209         int ret;
210
211         DBG("id=%d", id);
212
213         ret = dsi_mgr_phy_enable(id, phy_shared_timings);
214         if (ret)
215                 goto phy_en_fail;
216
217         ret = msm_dsi_host_power_on(host, &phy_shared_timings[id], is_bonded_dsi, msm_dsi->phy);
218         if (ret) {
219                 pr_err("%s: power on host %d failed, %d\n", __func__, id, ret);
220                 goto host_on_fail;
221         }
222
223         if (is_bonded_dsi && msm_dsi1) {
224                 ret = msm_dsi_host_power_on(msm_dsi1->host,
225                                 &phy_shared_timings[DSI_1], is_bonded_dsi, msm_dsi1->phy);
226                 if (ret) {
227                         pr_err("%s: power on host1 failed, %d\n",
228                                                         __func__, ret);
229                         goto host1_on_fail;
230                 }
231         }
232
233         /*
234          * Enable before preparing the panel, disable after unpreparing, so
235          * that the panel can communicate over the DSI link.
236          */
237         msm_dsi_host_enable_irq(host);
238         if (is_bonded_dsi && msm_dsi1)
239                 msm_dsi_host_enable_irq(msm_dsi1->host);
240
241         return 0;
242
243 host1_on_fail:
244         msm_dsi_host_power_off(host);
245 host_on_fail:
246         dsi_mgr_phy_disable(id);
247 phy_en_fail:
248         return ret;
249 }
250
251 static void dsi_mgr_bridge_power_off(struct drm_bridge *bridge)
252 {
253         int id = dsi_mgr_bridge_get_id(bridge);
254         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
255         struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
256         struct mipi_dsi_host *host = msm_dsi->host;
257         bool is_bonded_dsi = IS_BONDED_DSI();
258
259         msm_dsi_host_disable_irq(host);
260         if (is_bonded_dsi && msm_dsi1) {
261                 msm_dsi_host_disable_irq(msm_dsi1->host);
262                 msm_dsi_host_power_off(msm_dsi1->host);
263         }
264         msm_dsi_host_power_off(host);
265         dsi_mgr_phy_disable(id);
266 }
267
268 static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge)
269 {
270         int id = dsi_mgr_bridge_get_id(bridge);
271         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
272         struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
273         struct mipi_dsi_host *host = msm_dsi->host;
274         bool is_bonded_dsi = IS_BONDED_DSI();
275         int ret;
276
277         DBG("id=%d", id);
278
279         /* Do nothing with the host if it is slave-DSI in case of bonded DSI */
280         if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id))
281                 return;
282
283         ret = dsi_mgr_bridge_power_on(bridge);
284         if (ret) {
285                 dev_err(&msm_dsi->pdev->dev, "Power on failed: %d\n", ret);
286                 return;
287         }
288
289         ret = msm_dsi_host_enable(host);
290         if (ret) {
291                 pr_err("%s: enable host %d failed, %d\n", __func__, id, ret);
292                 goto host_en_fail;
293         }
294
295         if (is_bonded_dsi && msm_dsi1) {
296                 ret = msm_dsi_host_enable(msm_dsi1->host);
297                 if (ret) {
298                         pr_err("%s: enable host1 failed, %d\n", __func__, ret);
299                         goto host1_en_fail;
300                 }
301         }
302
303         return;
304
305 host1_en_fail:
306         msm_dsi_host_disable(host);
307 host_en_fail:
308         dsi_mgr_bridge_power_off(bridge);
309 }
310
311 void msm_dsi_manager_tpg_enable(void)
312 {
313         struct msm_dsi *m_dsi = dsi_mgr_get_dsi(DSI_0);
314         struct msm_dsi *s_dsi = dsi_mgr_get_dsi(DSI_1);
315
316         /* if dual dsi, trigger tpg on master first then slave */
317         if (m_dsi) {
318                 msm_dsi_host_test_pattern_en(m_dsi->host);
319                 if (IS_BONDED_DSI() && s_dsi)
320                         msm_dsi_host_test_pattern_en(s_dsi->host);
321         }
322 }
323
324 static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
325 {
326         int id = dsi_mgr_bridge_get_id(bridge);
327         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
328         struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
329         struct mipi_dsi_host *host = msm_dsi->host;
330         bool is_bonded_dsi = IS_BONDED_DSI();
331         int ret;
332
333         DBG("id=%d", id);
334
335         /*
336          * Do nothing with the host if it is slave-DSI in case of bonded DSI.
337          * It is safe to call dsi_mgr_phy_disable() here because a single PHY
338          * won't be diabled until both PHYs request disable.
339          */
340         if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id))
341                 goto disable_phy;
342
343         ret = msm_dsi_host_disable(host);
344         if (ret)
345                 pr_err("%s: host %d disable failed, %d\n", __func__, id, ret);
346
347         if (is_bonded_dsi && msm_dsi1) {
348                 ret = msm_dsi_host_disable(msm_dsi1->host);
349                 if (ret)
350                         pr_err("%s: host1 disable failed, %d\n", __func__, ret);
351         }
352
353         msm_dsi_host_disable_irq(host);
354         if (is_bonded_dsi && msm_dsi1)
355                 msm_dsi_host_disable_irq(msm_dsi1->host);
356
357         /* Save PHY status if it is a clock source */
358         msm_dsi_phy_pll_save_state(msm_dsi->phy);
359
360         ret = msm_dsi_host_power_off(host);
361         if (ret)
362                 pr_err("%s: host %d power off failed,%d\n", __func__, id, ret);
363
364         if (is_bonded_dsi && msm_dsi1) {
365                 ret = msm_dsi_host_power_off(msm_dsi1->host);
366                 if (ret)
367                         pr_err("%s: host1 power off failed, %d\n",
368                                                                 __func__, ret);
369         }
370
371 disable_phy:
372         dsi_mgr_phy_disable(id);
373 }
374
375 static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge,
376                 const struct drm_display_mode *mode,
377                 const struct drm_display_mode *adjusted_mode)
378 {
379         int id = dsi_mgr_bridge_get_id(bridge);
380         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
381         struct msm_dsi *other_dsi = dsi_mgr_get_other_dsi(id);
382         struct mipi_dsi_host *host = msm_dsi->host;
383         bool is_bonded_dsi = IS_BONDED_DSI();
384
385         DBG("set mode: " DRM_MODE_FMT, DRM_MODE_ARG(mode));
386
387         if (is_bonded_dsi && !IS_MASTER_DSI_LINK(id))
388                 return;
389
390         msm_dsi_host_set_display_mode(host, adjusted_mode);
391         if (is_bonded_dsi && other_dsi)
392                 msm_dsi_host_set_display_mode(other_dsi->host, adjusted_mode);
393 }
394
395 static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge *bridge,
396                                                       const struct drm_display_info *info,
397                                                       const struct drm_display_mode *mode)
398 {
399         int id = dsi_mgr_bridge_get_id(bridge);
400         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
401         struct mipi_dsi_host *host = msm_dsi->host;
402         struct platform_device *pdev = msm_dsi->pdev;
403         struct dev_pm_opp *opp;
404         unsigned long byte_clk_rate;
405
406         byte_clk_rate = dsi_byte_clk_get_rate(host, IS_BONDED_DSI(), mode);
407
408         opp = dev_pm_opp_find_freq_ceil(&pdev->dev, &byte_clk_rate);
409         if (!IS_ERR(opp)) {
410                 dev_pm_opp_put(opp);
411         } else if (PTR_ERR(opp) == -ERANGE) {
412                 /*
413                  * An empty table is created by devm_pm_opp_set_clkname() even
414                  * if there is none. Thus find_freq_ceil will still return
415                  * -ERANGE in such case.
416                  */
417                 if (dev_pm_opp_get_opp_count(&pdev->dev) != 0)
418                         return MODE_CLOCK_RANGE;
419         } else {
420                         return MODE_ERROR;
421         }
422
423         return msm_dsi_host_check_dsc(host, mode);
424 }
425
426 static int dsi_mgr_bridge_attach(struct drm_bridge *bridge,
427                                  enum drm_bridge_attach_flags flags)
428 {
429         int id = dsi_mgr_bridge_get_id(bridge);
430         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
431
432         return drm_bridge_attach(bridge->encoder, msm_dsi->next_bridge,
433                                  bridge, flags);
434 }
435
436 static const struct drm_bridge_funcs dsi_mgr_bridge_funcs = {
437         .attach = dsi_mgr_bridge_attach,
438         .pre_enable = dsi_mgr_bridge_pre_enable,
439         .post_disable = dsi_mgr_bridge_post_disable,
440         .mode_set = dsi_mgr_bridge_mode_set,
441         .mode_valid = dsi_mgr_bridge_mode_valid,
442 };
443
444 /* initialize bridge */
445 int msm_dsi_manager_connector_init(struct msm_dsi *msm_dsi,
446                                    struct drm_encoder *encoder)
447 {
448         struct drm_device *dev = msm_dsi->dev;
449         struct drm_bridge *bridge;
450         struct dsi_bridge *dsi_bridge;
451         struct drm_connector *connector;
452         int ret;
453
454         dsi_bridge = devm_kzalloc(msm_dsi->dev->dev,
455                                 sizeof(*dsi_bridge), GFP_KERNEL);
456         if (!dsi_bridge)
457                 return -ENOMEM;
458
459         dsi_bridge->id = msm_dsi->id;
460
461         bridge = &dsi_bridge->base;
462         bridge->funcs = &dsi_mgr_bridge_funcs;
463
464         ret = devm_drm_bridge_add(msm_dsi->dev->dev, bridge);
465         if (ret)
466                 return ret;
467
468         ret = drm_bridge_attach(encoder, bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
469         if (ret)
470                 return ret;
471
472         connector = drm_bridge_connector_init(dev, encoder);
473         if (IS_ERR(connector)) {
474                 DRM_ERROR("Unable to create bridge connector\n");
475                 return PTR_ERR(connector);
476         }
477
478         ret = drm_connector_attach_encoder(connector, encoder);
479         if (ret < 0)
480                 return ret;
481
482         return 0;
483 }
484
485 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg)
486 {
487         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
488         struct msm_dsi *msm_dsi0 = dsi_mgr_get_dsi(DSI_0);
489         struct mipi_dsi_host *host = msm_dsi->host;
490         bool is_read = (msg->rx_buf && msg->rx_len);
491         bool need_sync = (IS_SYNC_NEEDED() && !is_read);
492         int ret;
493
494         if (!msg->tx_buf || !msg->tx_len)
495                 return 0;
496
497         /* In bonded master case, panel requires the same commands sent to
498          * both DSI links. Host issues the command trigger to both links
499          * when DSI_1 calls the cmd transfer function, no matter it happens
500          * before or after DSI_0 cmd transfer.
501          */
502         if (need_sync && (id == DSI_0))
503                 return is_read ? msg->rx_len : msg->tx_len;
504
505         if (need_sync && msm_dsi0) {
506                 ret = msm_dsi_host_xfer_prepare(msm_dsi0->host, msg);
507                 if (ret) {
508                         pr_err("%s: failed to prepare non-trigger host, %d\n",
509                                 __func__, ret);
510                         return ret;
511                 }
512         }
513         ret = msm_dsi_host_xfer_prepare(host, msg);
514         if (ret) {
515                 pr_err("%s: failed to prepare host, %d\n", __func__, ret);
516                 goto restore_host0;
517         }
518
519         ret = is_read ? msm_dsi_host_cmd_rx(host, msg) :
520                         msm_dsi_host_cmd_tx(host, msg);
521
522         msm_dsi_host_xfer_restore(host, msg);
523
524 restore_host0:
525         if (need_sync && msm_dsi0)
526                 msm_dsi_host_xfer_restore(msm_dsi0->host, msg);
527
528         return ret;
529 }
530
531 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len)
532 {
533         struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
534         struct msm_dsi *msm_dsi0 = dsi_mgr_get_dsi(DSI_0);
535         struct mipi_dsi_host *host = msm_dsi->host;
536
537         if (IS_SYNC_NEEDED() && (id == DSI_0))
538                 return false;
539
540         if (IS_SYNC_NEEDED() && msm_dsi0)
541                 msm_dsi_host_cmd_xfer_commit(msm_dsi0->host, dma_base, len);
542
543         msm_dsi_host_cmd_xfer_commit(host, dma_base, len);
544
545         return true;
546 }
547
548 int msm_dsi_manager_register(struct msm_dsi *msm_dsi)
549 {
550         struct msm_dsi_manager *msm_dsim = &msm_dsim_glb;
551         int id = msm_dsi->id;
552         int ret;
553
554         if (id >= DSI_MAX) {
555                 pr_err("%s: invalid id %d\n", __func__, id);
556                 return -EINVAL;
557         }
558
559         if (msm_dsim->dsi[id]) {
560                 pr_err("%s: dsi%d already registered\n", __func__, id);
561                 return -EBUSY;
562         }
563
564         msm_dsim->dsi[id] = msm_dsi;
565
566         ret = dsi_mgr_parse_of(msm_dsi->pdev->dev.of_node, id);
567         if (ret) {
568                 pr_err("%s: failed to parse OF DSI info\n", __func__);
569                 goto fail;
570         }
571
572         ret = dsi_mgr_setup_components(id);
573         if (ret) {
574                 pr_err("%s: failed to register mipi dsi host for DSI %d: %d\n",
575                         __func__, id, ret);
576                 goto fail;
577         }
578
579         return 0;
580
581 fail:
582         msm_dsim->dsi[id] = NULL;
583         return ret;
584 }
585
586 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi)
587 {
588         struct msm_dsi_manager *msm_dsim = &msm_dsim_glb;
589
590         if (msm_dsi->host)
591                 msm_dsi_host_unregister(msm_dsi->host);
592
593         if (msm_dsi->id >= 0)
594                 msm_dsim->dsi[msm_dsi->id] = NULL;
595 }
596
597 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi)
598 {
599         return IS_BONDED_DSI();
600 }
601
602 bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
603 {
604         return IS_MASTER_DSI_LINK(msm_dsi->id);
605 }
606
607 const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi)
608 {
609         return msm_dsi->te_source;
610 }
This page took 0.056017 seconds and 4 git commands to generate.