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10#define DSS_SUBSYS_NAME "HDMI"
11
12#include <linux/kernel.h>
13#include <linux/module.h>
14#include <linux/err.h>
15#include <linux/io.h>
16#include <linux/interrupt.h>
17#include <linux/mutex.h>
18#include <linux/delay.h>
19#include <linux/string.h>
20#include <linux/platform_device.h>
21#include <linux/pm_runtime.h>
22#include <linux/clk.h>
23#include <linux/gpio.h>
24#include <linux/regulator/consumer.h>
25#include <linux/component.h>
26#include <linux/of.h>
27#include <linux/of_graph.h>
28#include <sound/omap-hdmi-audio.h>
29#include <media/cec.h>
30
31#include <drm/drm_atomic.h>
32#include <drm/drm_atomic_state_helper.h>
33
34#include "omapdss.h"
35#include "hdmi4_core.h"
36#include "hdmi4_cec.h"
37#include "dss.h"
38#include "hdmi.h"
39
40static int hdmi_runtime_get(struct omap_hdmi *hdmi)
41{
42 int r;
43
44 DSSDBG("hdmi_runtime_get\n");
45
46 r = pm_runtime_get_sync(&hdmi->pdev->dev);
47 WARN_ON(r < 0);
48 if (r < 0)
49 return r;
50
51 return 0;
52}
53
54static void hdmi_runtime_put(struct omap_hdmi *hdmi)
55{
56 int r;
57
58 DSSDBG("hdmi_runtime_put\n");
59
60 r = pm_runtime_put_sync(&hdmi->pdev->dev);
61 WARN_ON(r < 0 && r != -ENOSYS);
62}
63
64static irqreturn_t hdmi_irq_handler(int irq, void *data)
65{
66 struct omap_hdmi *hdmi = data;
67 struct hdmi_wp_data *wp = &hdmi->wp;
68 u32 irqstatus;
69
70 irqstatus = hdmi_wp_get_irqstatus(wp);
71 hdmi_wp_set_irqstatus(wp, irqstatus);
72
73 if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
74 irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
75
76
77
78
79
80
81 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
82
83 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
84 HDMI_IRQ_LINK_DISCONNECT);
85
86 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
87 } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
88 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
89 } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
90 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
91 }
92 if (irqstatus & HDMI_IRQ_CORE) {
93 u32 intr4 = hdmi_read_reg(hdmi->core.base, HDMI_CORE_SYS_INTR4);
94
95 hdmi_write_reg(hdmi->core.base, HDMI_CORE_SYS_INTR4, intr4);
96 if (intr4 & 8)
97 hdmi4_cec_irq(&hdmi->core);
98 }
99
100 return IRQ_HANDLED;
101}
102
103static int hdmi_power_on_core(struct omap_hdmi *hdmi)
104{
105 int r;
106
107 if (hdmi->core.core_pwr_cnt++)
108 return 0;
109
110 r = regulator_enable(hdmi->vdda_reg);
111 if (r)
112 goto err_reg_enable;
113
114 r = hdmi_runtime_get(hdmi);
115 if (r)
116 goto err_runtime_get;
117
118 hdmi4_core_powerdown_disable(&hdmi->core);
119
120
121 dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK);
122
123 hdmi->core_enabled = true;
124
125 return 0;
126
127err_runtime_get:
128 regulator_disable(hdmi->vdda_reg);
129err_reg_enable:
130 hdmi->core.core_pwr_cnt--;
131
132 return r;
133}
134
135static void hdmi_power_off_core(struct omap_hdmi *hdmi)
136{
137 if (--hdmi->core.core_pwr_cnt)
138 return;
139
140 hdmi->core_enabled = false;
141
142 hdmi_runtime_put(hdmi);
143 regulator_disable(hdmi->vdda_reg);
144}
145
146static int hdmi_power_on_full(struct omap_hdmi *hdmi)
147{
148 int r;
149 const struct videomode *vm;
150 struct hdmi_wp_data *wp = &hdmi->wp;
151 struct dss_pll_clock_info hdmi_cinfo = { 0 };
152 unsigned int pc;
153
154 r = hdmi_power_on_core(hdmi);
155 if (r)
156 return r;
157
158
159 hdmi_wp_clear_irqenable(wp, ~HDMI_IRQ_CORE);
160 hdmi_wp_set_irqstatus(wp, ~HDMI_IRQ_CORE);
161
162 vm = &hdmi->cfg.vm;
163
164 DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive,
165 vm->vactive);
166
167 pc = vm->pixelclock;
168 if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
169 pc *= 2;
170
171
172 pc *= 10;
173
174 dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin),
175 pc, &hdmi_cinfo);
176
177 r = dss_pll_enable(&hdmi->pll.pll);
178 if (r) {
179 DSSERR("Failed to enable PLL\n");
180 goto err_pll_enable;
181 }
182
183 r = dss_pll_set_config(&hdmi->pll.pll, &hdmi_cinfo);
184 if (r) {
185 DSSERR("Failed to configure PLL\n");
186 goto err_pll_cfg;
187 }
188
189 r = hdmi_phy_configure(&hdmi->phy, hdmi_cinfo.clkdco,
190 hdmi_cinfo.clkout[0]);
191 if (r) {
192 DSSDBG("Failed to configure PHY\n");
193 goto err_phy_cfg;
194 }
195
196 r = hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
197 if (r)
198 goto err_phy_pwr;
199
200 hdmi4_configure(&hdmi->core, &hdmi->wp, &hdmi->cfg);
201
202 r = dss_mgr_enable(&hdmi->output);
203 if (r)
204 goto err_mgr_enable;
205
206 r = hdmi_wp_video_start(&hdmi->wp);
207 if (r)
208 goto err_vid_enable;
209
210 hdmi_wp_set_irqenable(wp,
211 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
212
213 return 0;
214
215err_vid_enable:
216 dss_mgr_disable(&hdmi->output);
217err_mgr_enable:
218 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
219err_phy_pwr:
220err_phy_cfg:
221err_pll_cfg:
222 dss_pll_disable(&hdmi->pll.pll);
223err_pll_enable:
224 hdmi_power_off_core(hdmi);
225 return -EIO;
226}
227
228static void hdmi_power_off_full(struct omap_hdmi *hdmi)
229{
230 hdmi_wp_clear_irqenable(&hdmi->wp, ~HDMI_IRQ_CORE);
231
232 hdmi_wp_video_stop(&hdmi->wp);
233
234 dss_mgr_disable(&hdmi->output);
235
236 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
237
238 dss_pll_disable(&hdmi->pll.pll);
239
240 hdmi_power_off_core(hdmi);
241}
242
243static int hdmi_dump_regs(struct seq_file *s, void *p)
244{
245 struct omap_hdmi *hdmi = s->private;
246
247 mutex_lock(&hdmi->lock);
248
249 if (hdmi_runtime_get(hdmi)) {
250 mutex_unlock(&hdmi->lock);
251 return 0;
252 }
253
254 hdmi_wp_dump(&hdmi->wp, s);
255 hdmi_pll_dump(&hdmi->pll, s);
256 hdmi_phy_dump(&hdmi->phy, s);
257 hdmi4_core_dump(&hdmi->core, s);
258
259 hdmi_runtime_put(hdmi);
260 mutex_unlock(&hdmi->lock);
261 return 0;
262}
263
264static void hdmi_start_audio_stream(struct omap_hdmi *hd)
265{
266 hdmi_wp_audio_enable(&hd->wp, true);
267 hdmi4_audio_start(&hd->core, &hd->wp);
268}
269
270static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
271{
272 hdmi4_audio_stop(&hd->core, &hd->wp);
273 hdmi_wp_audio_enable(&hd->wp, false);
274}
275
276int hdmi4_core_enable(struct hdmi_core_data *core)
277{
278 struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core);
279 int r = 0;
280
281 DSSDBG("ENTER omapdss_hdmi4_core_enable\n");
282
283 mutex_lock(&hdmi->lock);
284
285 r = hdmi_power_on_core(hdmi);
286 if (r) {
287 DSSERR("failed to power on device\n");
288 goto err0;
289 }
290
291 mutex_unlock(&hdmi->lock);
292 return 0;
293
294err0:
295 mutex_unlock(&hdmi->lock);
296 return r;
297}
298
299void hdmi4_core_disable(struct hdmi_core_data *core)
300{
301 struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core);
302
303 DSSDBG("Enter omapdss_hdmi4_core_disable\n");
304
305 mutex_lock(&hdmi->lock);
306
307 hdmi_power_off_core(hdmi);
308
309 mutex_unlock(&hdmi->lock);
310}
311
312
313
314
315
316static int hdmi4_bridge_attach(struct drm_bridge *bridge,
317 enum drm_bridge_attach_flags flags)
318{
319 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
320
321 if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR))
322 return -EINVAL;
323
324 return drm_bridge_attach(bridge->encoder, hdmi->output.next_bridge,
325 bridge, flags);
326}
327
328static void hdmi4_bridge_mode_set(struct drm_bridge *bridge,
329 const struct drm_display_mode *mode,
330 const struct drm_display_mode *adjusted_mode)
331{
332 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
333
334 mutex_lock(&hdmi->lock);
335
336 drm_display_mode_to_videomode(adjusted_mode, &hdmi->cfg.vm);
337
338 dispc_set_tv_pclk(hdmi->dss->dispc, adjusted_mode->clock * 1000);
339
340 mutex_unlock(&hdmi->lock);
341}
342
343static void hdmi4_bridge_enable(struct drm_bridge *bridge,
344 struct drm_bridge_state *bridge_state)
345{
346 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
347 struct drm_atomic_state *state = bridge_state->base.state;
348 struct drm_connector_state *conn_state;
349 struct drm_connector *connector;
350 struct drm_crtc_state *crtc_state;
351 unsigned long flags;
352 int ret;
353
354
355
356
357
358 connector = drm_atomic_get_new_connector_for_encoder(state,
359 bridge->encoder);
360 if (WARN_ON(!connector))
361 return;
362 conn_state = drm_atomic_get_new_connector_state(state, connector);
363 if (WARN_ON(!conn_state))
364 return;
365 crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
366 if (WARN_ON(!crtc_state))
367 return;
368
369 hdmi->cfg.hdmi_dvi_mode = connector->display_info.is_hdmi
370 ? HDMI_HDMI : HDMI_DVI;
371
372 if (connector->display_info.is_hdmi) {
373 const struct drm_display_mode *mode;
374 struct hdmi_avi_infoframe avi;
375
376 mode = &crtc_state->adjusted_mode;
377 ret = drm_hdmi_avi_infoframe_from_display_mode(&avi, connector,
378 mode);
379 if (ret == 0)
380 hdmi->cfg.infoframe = avi;
381 }
382
383 mutex_lock(&hdmi->lock);
384
385 ret = hdmi_power_on_full(hdmi);
386 if (ret) {
387 DSSERR("failed to power on device\n");
388 goto done;
389 }
390
391 if (hdmi->audio_configured) {
392 ret = hdmi4_audio_config(&hdmi->core, &hdmi->wp,
393 &hdmi->audio_config,
394 hdmi->cfg.vm.pixelclock);
395 if (ret) {
396 DSSERR("Error restoring audio configuration: %d", ret);
397 hdmi->audio_abort_cb(&hdmi->pdev->dev);
398 hdmi->audio_configured = false;
399 }
400 }
401
402 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
403 if (hdmi->audio_configured && hdmi->audio_playing)
404 hdmi_start_audio_stream(hdmi);
405 hdmi->display_enabled = true;
406 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
407
408done:
409 mutex_unlock(&hdmi->lock);
410}
411
412static void hdmi4_bridge_disable(struct drm_bridge *bridge,
413 struct drm_bridge_state *bridge_state)
414{
415 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
416 unsigned long flags;
417
418 mutex_lock(&hdmi->lock);
419
420 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
421 hdmi_stop_audio_stream(hdmi);
422 hdmi->display_enabled = false;
423 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
424
425 hdmi_power_off_full(hdmi);
426
427 mutex_unlock(&hdmi->lock);
428}
429
430static void hdmi4_bridge_hpd_notify(struct drm_bridge *bridge,
431 enum drm_connector_status status)
432{
433 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
434
435 if (status == connector_status_disconnected)
436 hdmi4_cec_set_phys_addr(&hdmi->core, CEC_PHYS_ADDR_INVALID);
437}
438
439static struct edid *hdmi4_bridge_get_edid(struct drm_bridge *bridge,
440 struct drm_connector *connector)
441{
442 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
443 struct edid *edid = NULL;
444 unsigned int cec_addr;
445 bool need_enable;
446 int r;
447
448 need_enable = hdmi->core_enabled == false;
449
450 if (need_enable) {
451 r = hdmi4_core_enable(&hdmi->core);
452 if (r)
453 return NULL;
454 }
455
456 mutex_lock(&hdmi->lock);
457 r = hdmi_runtime_get(hdmi);
458 BUG_ON(r);
459
460 r = hdmi4_core_ddc_init(&hdmi->core);
461 if (r)
462 goto done;
463
464 edid = drm_do_get_edid(connector, hdmi4_core_ddc_read, &hdmi->core);
465
466done:
467 hdmi_runtime_put(hdmi);
468 mutex_unlock(&hdmi->lock);
469
470 if (edid && edid->extensions) {
471 unsigned int len = (edid->extensions + 1) * EDID_LENGTH;
472
473 cec_addr = cec_get_edid_phys_addr((u8 *)edid, len, NULL);
474 } else {
475 cec_addr = CEC_PHYS_ADDR_INVALID;
476 }
477
478 hdmi4_cec_set_phys_addr(&hdmi->core, cec_addr);
479
480 if (need_enable)
481 hdmi4_core_disable(&hdmi->core);
482
483 return edid;
484}
485
486static const struct drm_bridge_funcs hdmi4_bridge_funcs = {
487 .attach = hdmi4_bridge_attach,
488 .mode_set = hdmi4_bridge_mode_set,
489 .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
490 .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
491 .atomic_reset = drm_atomic_helper_bridge_reset,
492 .atomic_enable = hdmi4_bridge_enable,
493 .atomic_disable = hdmi4_bridge_disable,
494 .hpd_notify = hdmi4_bridge_hpd_notify,
495 .get_edid = hdmi4_bridge_get_edid,
496};
497
498static void hdmi4_bridge_init(struct omap_hdmi *hdmi)
499{
500 hdmi->bridge.funcs = &hdmi4_bridge_funcs;
501 hdmi->bridge.of_node = hdmi->pdev->dev.of_node;
502 hdmi->bridge.ops = DRM_BRIDGE_OP_EDID;
503 hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
504
505 drm_bridge_add(&hdmi->bridge);
506}
507
508static void hdmi4_bridge_cleanup(struct omap_hdmi *hdmi)
509{
510 drm_bridge_remove(&hdmi->bridge);
511}
512
513
514
515
516
517static int hdmi_audio_startup(struct device *dev,
518 void (*abort_cb)(struct device *dev))
519{
520 struct omap_hdmi *hd = dev_get_drvdata(dev);
521
522 mutex_lock(&hd->lock);
523
524 WARN_ON(hd->audio_abort_cb != NULL);
525
526 hd->audio_abort_cb = abort_cb;
527
528 mutex_unlock(&hd->lock);
529
530 return 0;
531}
532
533static int hdmi_audio_shutdown(struct device *dev)
534{
535 struct omap_hdmi *hd = dev_get_drvdata(dev);
536
537 mutex_lock(&hd->lock);
538 hd->audio_abort_cb = NULL;
539 hd->audio_configured = false;
540 hd->audio_playing = false;
541 mutex_unlock(&hd->lock);
542
543 return 0;
544}
545
546static int hdmi_audio_start(struct device *dev)
547{
548 struct omap_hdmi *hd = dev_get_drvdata(dev);
549 unsigned long flags;
550
551 spin_lock_irqsave(&hd->audio_playing_lock, flags);
552
553 if (hd->display_enabled) {
554 if (!hdmi_mode_has_audio(&hd->cfg))
555 DSSERR("%s: Video mode does not support audio\n",
556 __func__);
557 hdmi_start_audio_stream(hd);
558 }
559 hd->audio_playing = true;
560
561 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
562 return 0;
563}
564
565static void hdmi_audio_stop(struct device *dev)
566{
567 struct omap_hdmi *hd = dev_get_drvdata(dev);
568 unsigned long flags;
569
570 WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
571
572 spin_lock_irqsave(&hd->audio_playing_lock, flags);
573
574 if (hd->display_enabled)
575 hdmi_stop_audio_stream(hd);
576 hd->audio_playing = false;
577
578 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
579}
580
581static int hdmi_audio_config(struct device *dev,
582 struct omap_dss_audio *dss_audio)
583{
584 struct omap_hdmi *hd = dev_get_drvdata(dev);
585 int ret = 0;
586
587 mutex_lock(&hd->lock);
588
589 if (hd->display_enabled) {
590 ret = hdmi4_audio_config(&hd->core, &hd->wp, dss_audio,
591 hd->cfg.vm.pixelclock);
592 if (ret)
593 goto out;
594 }
595
596 hd->audio_configured = true;
597 hd->audio_config = *dss_audio;
598out:
599 mutex_unlock(&hd->lock);
600
601 return ret;
602}
603
604static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
605 .audio_startup = hdmi_audio_startup,
606 .audio_shutdown = hdmi_audio_shutdown,
607 .audio_start = hdmi_audio_start,
608 .audio_stop = hdmi_audio_stop,
609 .audio_config = hdmi_audio_config,
610};
611
612static int hdmi_audio_register(struct omap_hdmi *hdmi)
613{
614 struct omap_hdmi_audio_pdata pdata = {
615 .dev = &hdmi->pdev->dev,
616 .version = 4,
617 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi->wp),
618 .ops = &hdmi_audio_ops,
619 };
620
621 hdmi->audio_pdev = platform_device_register_data(
622 &hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
623 &pdata, sizeof(pdata));
624
625 if (IS_ERR(hdmi->audio_pdev))
626 return PTR_ERR(hdmi->audio_pdev);
627
628 return 0;
629}
630
631
632
633
634
635static int hdmi4_bind(struct device *dev, struct device *master, void *data)
636{
637 struct dss_device *dss = dss_get_device(master);
638 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
639 int r;
640
641 hdmi->dss = dss;
642
643 r = hdmi_runtime_get(hdmi);
644 if (r)
645 return r;
646
647 r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
648 if (r)
649 goto err_runtime_put;
650
651 r = hdmi4_cec_init(hdmi->pdev, &hdmi->core, &hdmi->wp);
652 if (r)
653 goto err_pll_uninit;
654
655 r = hdmi_audio_register(hdmi);
656 if (r) {
657 DSSERR("Registering HDMI audio failed\n");
658 goto err_cec_uninit;
659 }
660
661 hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
662 hdmi);
663
664 hdmi_runtime_put(hdmi);
665
666 return 0;
667
668err_cec_uninit:
669 hdmi4_cec_uninit(&hdmi->core);
670err_pll_uninit:
671 hdmi_pll_uninit(&hdmi->pll);
672err_runtime_put:
673 hdmi_runtime_put(hdmi);
674 return r;
675}
676
677static void hdmi4_unbind(struct device *dev, struct device *master, void *data)
678{
679 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
680
681 dss_debugfs_remove_file(hdmi->debugfs);
682
683 if (hdmi->audio_pdev)
684 platform_device_unregister(hdmi->audio_pdev);
685
686 hdmi4_cec_uninit(&hdmi->core);
687 hdmi_pll_uninit(&hdmi->pll);
688}
689
690static const struct component_ops hdmi4_component_ops = {
691 .bind = hdmi4_bind,
692 .unbind = hdmi4_unbind,
693};
694
695
696
697
698
699static int hdmi4_init_output(struct omap_hdmi *hdmi)
700{
701 struct omap_dss_device *out = &hdmi->output;
702 int r;
703
704 hdmi4_bridge_init(hdmi);
705
706 out->dev = &hdmi->pdev->dev;
707 out->id = OMAP_DSS_OUTPUT_HDMI;
708 out->type = OMAP_DISPLAY_TYPE_HDMI;
709 out->name = "hdmi.0";
710 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
711 out->owner = THIS_MODULE;
712 out->of_port = 0;
713
714 r = omapdss_device_init_output(out, &hdmi->bridge);
715 if (r < 0) {
716 hdmi4_bridge_cleanup(hdmi);
717 return r;
718 }
719
720 omapdss_device_register(out);
721
722 return 0;
723}
724
725static void hdmi4_uninit_output(struct omap_hdmi *hdmi)
726{
727 struct omap_dss_device *out = &hdmi->output;
728
729 omapdss_device_unregister(out);
730 omapdss_device_cleanup_output(out);
731
732 hdmi4_bridge_cleanup(hdmi);
733}
734
735static int hdmi4_probe_of(struct omap_hdmi *hdmi)
736{
737 struct platform_device *pdev = hdmi->pdev;
738 struct device_node *node = pdev->dev.of_node;
739 struct device_node *ep;
740 int r;
741
742 ep = of_graph_get_endpoint_by_regs(node, 0, 0);
743 if (!ep)
744 return 0;
745
746 r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy);
747 of_node_put(ep);
748 return r;
749}
750
751static int hdmi4_probe(struct platform_device *pdev)
752{
753 struct omap_hdmi *hdmi;
754 int irq;
755 int r;
756
757 hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
758 if (!hdmi)
759 return -ENOMEM;
760
761 hdmi->pdev = pdev;
762
763 dev_set_drvdata(&pdev->dev, hdmi);
764
765 mutex_init(&hdmi->lock);
766 spin_lock_init(&hdmi->audio_playing_lock);
767
768 r = hdmi4_probe_of(hdmi);
769 if (r)
770 goto err_free;
771
772 r = hdmi_wp_init(pdev, &hdmi->wp, 4);
773 if (r)
774 goto err_free;
775
776 r = hdmi_phy_init(pdev, &hdmi->phy, 4);
777 if (r)
778 goto err_free;
779
780 r = hdmi4_core_init(pdev, &hdmi->core);
781 if (r)
782 goto err_free;
783
784 irq = platform_get_irq(pdev, 0);
785 if (irq < 0) {
786 DSSERR("platform_get_irq failed\n");
787 r = -ENODEV;
788 goto err_free;
789 }
790
791 r = devm_request_threaded_irq(&pdev->dev, irq,
792 NULL, hdmi_irq_handler,
793 IRQF_ONESHOT, "OMAP HDMI", hdmi);
794 if (r) {
795 DSSERR("HDMI IRQ request failed\n");
796 goto err_free;
797 }
798
799 hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda");
800 if (IS_ERR(hdmi->vdda_reg)) {
801 r = PTR_ERR(hdmi->vdda_reg);
802 if (r != -EPROBE_DEFER)
803 DSSERR("can't get VDDA regulator\n");
804 goto err_free;
805 }
806
807 pm_runtime_enable(&pdev->dev);
808
809 r = hdmi4_init_output(hdmi);
810 if (r)
811 goto err_pm_disable;
812
813 r = component_add(&pdev->dev, &hdmi4_component_ops);
814 if (r)
815 goto err_uninit_output;
816
817 return 0;
818
819err_uninit_output:
820 hdmi4_uninit_output(hdmi);
821err_pm_disable:
822 pm_runtime_disable(&pdev->dev);
823err_free:
824 kfree(hdmi);
825 return r;
826}
827
828static int hdmi4_remove(struct platform_device *pdev)
829{
830 struct omap_hdmi *hdmi = platform_get_drvdata(pdev);
831
832 component_del(&pdev->dev, &hdmi4_component_ops);
833
834 hdmi4_uninit_output(hdmi);
835
836 pm_runtime_disable(&pdev->dev);
837
838 kfree(hdmi);
839 return 0;
840}
841
842static const struct of_device_id hdmi_of_match[] = {
843 { .compatible = "ti,omap4-hdmi", },
844 {},
845};
846
847struct platform_driver omapdss_hdmi4hw_driver = {
848 .probe = hdmi4_probe,
849 .remove = hdmi4_remove,
850 .driver = {
851 .name = "omapdss_hdmi",
852 .of_match_table = hdmi_of_match,
853 .suppress_bind_attrs = true,
854 },
855};
856
