1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * HDMI driver for OMAP5
4 *
5 * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
6 *
7 * Authors:
8 * Yong Zhi
9 * Mythri pk
10 * Archit Taneja <archit@ti.com>
11 * Tomi Valkeinen <tomi.valkeinen@ti.com>
12 */
13
14 #define DSS_SUBSYS_NAME "HDMI"
15
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/err.h>
19 #include <linux/io.h>
20 #include <linux/interrupt.h>
21 #include <linux/mutex.h>
22 #include <linux/delay.h>
23 #include <linux/string.h>
24 #include <linux/platform_device.h>
25 #include <linux/pm_runtime.h>
26 #include <linux/clk.h>
27 #include <linux/gpio.h>
28 #include <linux/regulator/consumer.h>
29 #include <linux/component.h>
30 #include <linux/of.h>
31 #include <linux/of_graph.h>
32 #include <sound/omap-hdmi-audio.h>
33
34 #include "omapdss.h"
35 #include "hdmi5_core.h"
36 #include "dss.h"
37
hdmi_runtime_get(struct omap_hdmi * hdmi)38 static int hdmi_runtime_get(struct omap_hdmi *hdmi)
39 {
40 int r;
41
42 DSSDBG("hdmi_runtime_get\n");
43
44 r = pm_runtime_get_sync(&hdmi->pdev->dev);
45 WARN_ON(r < 0);
46 if (r < 0)
47 return r;
48
49 return 0;
50 }
51
hdmi_runtime_put(struct omap_hdmi * hdmi)52 static void hdmi_runtime_put(struct omap_hdmi *hdmi)
53 {
54 int r;
55
56 DSSDBG("hdmi_runtime_put\n");
57
58 r = pm_runtime_put_sync(&hdmi->pdev->dev);
59 WARN_ON(r < 0 && r != -ENOSYS);
60 }
61
hdmi_irq_handler(int irq,void * data)62 static irqreturn_t hdmi_irq_handler(int irq, void *data)
63 {
64 struct omap_hdmi *hdmi = data;
65 struct hdmi_wp_data *wp = &hdmi->wp;
66 u32 irqstatus;
67
68 irqstatus = hdmi_wp_get_irqstatus(wp);
69 hdmi_wp_set_irqstatus(wp, irqstatus);
70
71 if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
72 irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
73 u32 v;
74 /*
75 * If we get both connect and disconnect interrupts at the same
76 * time, turn off the PHY, clear interrupts, and restart, which
77 * raises connect interrupt if a cable is connected, or nothing
78 * if cable is not connected.
79 */
80
81 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
82
83 /*
84 * We always get bogus CONNECT & DISCONNECT interrupts when
85 * setting the PHY to LDOON. To ignore those, we force the RXDET
86 * line to 0 until the PHY power state has been changed.
87 */
88 v = hdmi_read_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL);
89 v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */
90 v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */
91 hdmi_write_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v);
92
93 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
94 HDMI_IRQ_LINK_DISCONNECT);
95
96 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
97
98 REG_FLD_MOD(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15);
99
100 } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
101 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
102 } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
103 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
104 }
105
106 return IRQ_HANDLED;
107 }
108
hdmi_power_on_core(struct omap_hdmi * hdmi)109 static int hdmi_power_on_core(struct omap_hdmi *hdmi)
110 {
111 int r;
112
113 r = regulator_enable(hdmi->vdda_reg);
114 if (r)
115 return r;
116
117 r = hdmi_runtime_get(hdmi);
118 if (r)
119 goto err_runtime_get;
120
121 /* Make selection of HDMI in DSS */
122 dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK);
123
124 hdmi->core_enabled = true;
125
126 return 0;
127
128 err_runtime_get:
129 regulator_disable(hdmi->vdda_reg);
130
131 return r;
132 }
133
hdmi_power_off_core(struct omap_hdmi * hdmi)134 static void hdmi_power_off_core(struct omap_hdmi *hdmi)
135 {
136 hdmi->core_enabled = false;
137
138 hdmi_runtime_put(hdmi);
139 regulator_disable(hdmi->vdda_reg);
140 }
141
hdmi_power_on_full(struct omap_hdmi * hdmi)142 static int hdmi_power_on_full(struct omap_hdmi *hdmi)
143 {
144 int r;
145 const struct videomode *vm;
146 struct dss_pll_clock_info hdmi_cinfo = { 0 };
147 unsigned int pc;
148
149 r = hdmi_power_on_core(hdmi);
150 if (r)
151 return r;
152
153 vm = &hdmi->cfg.vm;
154
155 DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive,
156 vm->vactive);
157
158 pc = vm->pixelclock;
159 if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
160 pc *= 2;
161
162 /* DSS_HDMI_TCLK is bitclk / 10 */
163 pc *= 10;
164
165 dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin),
166 pc, &hdmi_cinfo);
167
168 /* disable and clear irqs */
169 hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
170 hdmi_wp_set_irqstatus(&hdmi->wp,
171 hdmi_wp_get_irqstatus(&hdmi->wp));
172
173 r = dss_pll_enable(&hdmi->pll.pll);
174 if (r) {
175 DSSERR("Failed to enable PLL\n");
176 goto err_pll_enable;
177 }
178
179 r = dss_pll_set_config(&hdmi->pll.pll, &hdmi_cinfo);
180 if (r) {
181 DSSERR("Failed to configure PLL\n");
182 goto err_pll_cfg;
183 }
184
185 r = hdmi_phy_configure(&hdmi->phy, hdmi_cinfo.clkdco,
186 hdmi_cinfo.clkout[0]);
187 if (r) {
188 DSSDBG("Failed to start PHY\n");
189 goto err_phy_cfg;
190 }
191
192 r = hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_LDOON);
193 if (r)
194 goto err_phy_pwr;
195
196 hdmi5_configure(&hdmi->core, &hdmi->wp, &hdmi->cfg);
197
198 r = dss_mgr_enable(&hdmi->output);
199 if (r)
200 goto err_mgr_enable;
201
202 r = hdmi_wp_video_start(&hdmi->wp);
203 if (r)
204 goto err_vid_enable;
205
206 hdmi_wp_set_irqenable(&hdmi->wp,
207 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
208
209 return 0;
210
211 err_vid_enable:
212 dss_mgr_disable(&hdmi->output);
213 err_mgr_enable:
214 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
215 err_phy_pwr:
216 err_phy_cfg:
217 err_pll_cfg:
218 dss_pll_disable(&hdmi->pll.pll);
219 err_pll_enable:
220 hdmi_power_off_core(hdmi);
221 return -EIO;
222 }
223
hdmi_power_off_full(struct omap_hdmi * hdmi)224 static void hdmi_power_off_full(struct omap_hdmi *hdmi)
225 {
226 hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
227
228 hdmi_wp_video_stop(&hdmi->wp);
229
230 dss_mgr_disable(&hdmi->output);
231
232 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
233
234 dss_pll_disable(&hdmi->pll.pll);
235
236 hdmi_power_off_core(hdmi);
237 }
238
hdmi_display_set_timings(struct omap_dss_device * dssdev,const struct drm_display_mode * mode)239 static void hdmi_display_set_timings(struct omap_dss_device *dssdev,
240 const struct drm_display_mode *mode)
241 {
242 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
243
244 mutex_lock(&hdmi->lock);
245
246 drm_display_mode_to_videomode(mode, &hdmi->cfg.vm);
247
248 dispc_set_tv_pclk(hdmi->dss->dispc, mode->clock * 1000);
249
250 mutex_unlock(&hdmi->lock);
251 }
252
hdmi_dump_regs(struct seq_file * s,void * p)253 static int hdmi_dump_regs(struct seq_file *s, void *p)
254 {
255 struct omap_hdmi *hdmi = s->private;
256
257 mutex_lock(&hdmi->lock);
258
259 if (hdmi_runtime_get(hdmi)) {
260 mutex_unlock(&hdmi->lock);
261 return 0;
262 }
263
264 hdmi_wp_dump(&hdmi->wp, s);
265 hdmi_pll_dump(&hdmi->pll, s);
266 hdmi_phy_dump(&hdmi->phy, s);
267 hdmi5_core_dump(&hdmi->core, s);
268
269 hdmi_runtime_put(hdmi);
270 mutex_unlock(&hdmi->lock);
271 return 0;
272 }
273
read_edid(struct omap_hdmi * hdmi,u8 * buf,int len)274 static int read_edid(struct omap_hdmi *hdmi, u8 *buf, int len)
275 {
276 int r;
277 int idlemode;
278
279 mutex_lock(&hdmi->lock);
280
281 r = hdmi_runtime_get(hdmi);
282 BUG_ON(r);
283
284 idlemode = REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
285 /* No-idle mode */
286 REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
287
288 r = hdmi5_read_edid(&hdmi->core, buf, len);
289
290 REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2);
291
292 hdmi_runtime_put(hdmi);
293 mutex_unlock(&hdmi->lock);
294
295 return r;
296 }
297
hdmi_start_audio_stream(struct omap_hdmi * hd)298 static void hdmi_start_audio_stream(struct omap_hdmi *hd)
299 {
300 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
301 hdmi_wp_audio_enable(&hd->wp, true);
302 hdmi_wp_audio_core_req_enable(&hd->wp, true);
303 }
304
hdmi_stop_audio_stream(struct omap_hdmi * hd)305 static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
306 {
307 hdmi_wp_audio_core_req_enable(&hd->wp, false);
308 hdmi_wp_audio_enable(&hd->wp, false);
309 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2);
310 }
311
hdmi_display_enable(struct omap_dss_device * dssdev)312 static void hdmi_display_enable(struct omap_dss_device *dssdev)
313 {
314 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
315 unsigned long flags;
316 int r;
317
318 DSSDBG("ENTER hdmi_display_enable\n");
319
320 mutex_lock(&hdmi->lock);
321
322 r = hdmi_power_on_full(hdmi);
323 if (r) {
324 DSSERR("failed to power on device\n");
325 goto done;
326 }
327
328 if (hdmi->audio_configured) {
329 r = hdmi5_audio_config(&hdmi->core, &hdmi->wp,
330 &hdmi->audio_config,
331 hdmi->cfg.vm.pixelclock);
332 if (r) {
333 DSSERR("Error restoring audio configuration: %d", r);
334 hdmi->audio_abort_cb(&hdmi->pdev->dev);
335 hdmi->audio_configured = false;
336 }
337 }
338
339 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
340 if (hdmi->audio_configured && hdmi->audio_playing)
341 hdmi_start_audio_stream(hdmi);
342 hdmi->display_enabled = true;
343 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
344
345 done:
346 mutex_unlock(&hdmi->lock);
347 }
348
hdmi_display_disable(struct omap_dss_device * dssdev)349 static void hdmi_display_disable(struct omap_dss_device *dssdev)
350 {
351 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
352 unsigned long flags;
353
354 DSSDBG("Enter hdmi_display_disable\n");
355
356 mutex_lock(&hdmi->lock);
357
358 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
359 hdmi_stop_audio_stream(hdmi);
360 hdmi->display_enabled = false;
361 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
362
363 hdmi_power_off_full(hdmi);
364
365 mutex_unlock(&hdmi->lock);
366 }
367
hdmi_core_enable(struct omap_hdmi * hdmi)368 static int hdmi_core_enable(struct omap_hdmi *hdmi)
369 {
370 int r = 0;
371
372 DSSDBG("ENTER omapdss_hdmi_core_enable\n");
373
374 mutex_lock(&hdmi->lock);
375
376 r = hdmi_power_on_core(hdmi);
377 if (r) {
378 DSSERR("failed to power on device\n");
379 goto err0;
380 }
381
382 mutex_unlock(&hdmi->lock);
383 return 0;
384
385 err0:
386 mutex_unlock(&hdmi->lock);
387 return r;
388 }
389
hdmi_core_disable(struct omap_hdmi * hdmi)390 static void hdmi_core_disable(struct omap_hdmi *hdmi)
391 {
392 DSSDBG("Enter omapdss_hdmi_core_disable\n");
393
394 mutex_lock(&hdmi->lock);
395
396 hdmi_power_off_core(hdmi);
397
398 mutex_unlock(&hdmi->lock);
399 }
400
hdmi_connect(struct omap_dss_device * src,struct omap_dss_device * dst)401 static int hdmi_connect(struct omap_dss_device *src,
402 struct omap_dss_device *dst)
403 {
404 return omapdss_device_connect(dst->dss, dst, dst->next);
405 }
406
hdmi_disconnect(struct omap_dss_device * src,struct omap_dss_device * dst)407 static void hdmi_disconnect(struct omap_dss_device *src,
408 struct omap_dss_device *dst)
409 {
410 omapdss_device_disconnect(dst, dst->next);
411 }
412
hdmi_read_edid(struct omap_dss_device * dssdev,u8 * edid,int len)413 static int hdmi_read_edid(struct omap_dss_device *dssdev,
414 u8 *edid, int len)
415 {
416 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
417 bool need_enable;
418 int r;
419
420 need_enable = hdmi->core_enabled == false;
421
422 if (need_enable) {
423 r = hdmi_core_enable(hdmi);
424 if (r)
425 return r;
426 }
427
428 r = read_edid(hdmi, edid, len);
429
430 if (need_enable)
431 hdmi_core_disable(hdmi);
432
433 return r;
434 }
435
hdmi_set_infoframe(struct omap_dss_device * dssdev,const struct hdmi_avi_infoframe * avi)436 static int hdmi_set_infoframe(struct omap_dss_device *dssdev,
437 const struct hdmi_avi_infoframe *avi)
438 {
439 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
440
441 hdmi->cfg.infoframe = *avi;
442 return 0;
443 }
444
hdmi_set_hdmi_mode(struct omap_dss_device * dssdev,bool hdmi_mode)445 static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev,
446 bool hdmi_mode)
447 {
448 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
449
450 hdmi->cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI;
451 return 0;
452 }
453
454 static const struct omap_dss_device_ops hdmi_ops = {
455 .connect = hdmi_connect,
456 .disconnect = hdmi_disconnect,
457
458 .enable = hdmi_display_enable,
459 .disable = hdmi_display_disable,
460
461 .set_timings = hdmi_display_set_timings,
462
463 .read_edid = hdmi_read_edid,
464
465 .hdmi = {
466 .set_infoframe = hdmi_set_infoframe,
467 .set_hdmi_mode = hdmi_set_hdmi_mode,
468 },
469 };
470
471 /* -----------------------------------------------------------------------------
472 * Audio Callbacks
473 */
474
hdmi_audio_startup(struct device * dev,void (* abort_cb)(struct device * dev))475 static int hdmi_audio_startup(struct device *dev,
476 void (*abort_cb)(struct device *dev))
477 {
478 struct omap_hdmi *hd = dev_get_drvdata(dev);
479
480 mutex_lock(&hd->lock);
481
482 WARN_ON(hd->audio_abort_cb != NULL);
483
484 hd->audio_abort_cb = abort_cb;
485
486 mutex_unlock(&hd->lock);
487
488 return 0;
489 }
490
hdmi_audio_shutdown(struct device * dev)491 static int hdmi_audio_shutdown(struct device *dev)
492 {
493 struct omap_hdmi *hd = dev_get_drvdata(dev);
494
495 mutex_lock(&hd->lock);
496 hd->audio_abort_cb = NULL;
497 hd->audio_configured = false;
498 hd->audio_playing = false;
499 mutex_unlock(&hd->lock);
500
501 return 0;
502 }
503
hdmi_audio_start(struct device * dev)504 static int hdmi_audio_start(struct device *dev)
505 {
506 struct omap_hdmi *hd = dev_get_drvdata(dev);
507 unsigned long flags;
508
509 spin_lock_irqsave(&hd->audio_playing_lock, flags);
510
511 if (hd->display_enabled) {
512 if (!hdmi_mode_has_audio(&hd->cfg))
513 DSSERR("%s: Video mode does not support audio\n",
514 __func__);
515 hdmi_start_audio_stream(hd);
516 }
517 hd->audio_playing = true;
518
519 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
520 return 0;
521 }
522
hdmi_audio_stop(struct device * dev)523 static void hdmi_audio_stop(struct device *dev)
524 {
525 struct omap_hdmi *hd = dev_get_drvdata(dev);
526 unsigned long flags;
527
528 if (!hdmi_mode_has_audio(&hd->cfg))
529 DSSERR("%s: Video mode does not support audio\n", __func__);
530
531 spin_lock_irqsave(&hd->audio_playing_lock, flags);
532
533 if (hd->display_enabled)
534 hdmi_stop_audio_stream(hd);
535 hd->audio_playing = false;
536
537 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
538 }
539
hdmi_audio_config(struct device * dev,struct omap_dss_audio * dss_audio)540 static int hdmi_audio_config(struct device *dev,
541 struct omap_dss_audio *dss_audio)
542 {
543 struct omap_hdmi *hd = dev_get_drvdata(dev);
544 int ret = 0;
545
546 mutex_lock(&hd->lock);
547
548 if (hd->display_enabled) {
549 ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
550 hd->cfg.vm.pixelclock);
551 if (ret)
552 goto out;
553 }
554
555 hd->audio_configured = true;
556 hd->audio_config = *dss_audio;
557 out:
558 mutex_unlock(&hd->lock);
559
560 return ret;
561 }
562
563 static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
564 .audio_startup = hdmi_audio_startup,
565 .audio_shutdown = hdmi_audio_shutdown,
566 .audio_start = hdmi_audio_start,
567 .audio_stop = hdmi_audio_stop,
568 .audio_config = hdmi_audio_config,
569 };
570
hdmi_audio_register(struct omap_hdmi * hdmi)571 static int hdmi_audio_register(struct omap_hdmi *hdmi)
572 {
573 struct omap_hdmi_audio_pdata pdata = {
574 .dev = &hdmi->pdev->dev,
575 .version = 5,
576 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi->wp),
577 .ops = &hdmi_audio_ops,
578 };
579
580 hdmi->audio_pdev = platform_device_register_data(
581 &hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
582 &pdata, sizeof(pdata));
583
584 if (IS_ERR(hdmi->audio_pdev))
585 return PTR_ERR(hdmi->audio_pdev);
586
587 hdmi_runtime_get(hdmi);
588 hdmi->wp_idlemode =
589 REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
590 hdmi_runtime_put(hdmi);
591
592 return 0;
593 }
594
595 /* -----------------------------------------------------------------------------
596 * Component Bind & Unbind
597 */
598
hdmi5_bind(struct device * dev,struct device * master,void * data)599 static int hdmi5_bind(struct device *dev, struct device *master, void *data)
600 {
601 struct dss_device *dss = dss_get_device(master);
602 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
603 int r;
604
605 hdmi->dss = dss;
606
607 r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
608 if (r)
609 return r;
610
611 r = hdmi_audio_register(hdmi);
612 if (r) {
613 DSSERR("Registering HDMI audio failed %d\n", r);
614 goto err_pll_uninit;
615 }
616
617 hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
618 hdmi);
619
620 return 0;
621
622 err_pll_uninit:
623 hdmi_pll_uninit(&hdmi->pll);
624 return r;
625 }
626
hdmi5_unbind(struct device * dev,struct device * master,void * data)627 static void hdmi5_unbind(struct device *dev, struct device *master, void *data)
628 {
629 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
630
631 dss_debugfs_remove_file(hdmi->debugfs);
632
633 if (hdmi->audio_pdev)
634 platform_device_unregister(hdmi->audio_pdev);
635
636 hdmi_pll_uninit(&hdmi->pll);
637 }
638
639 static const struct component_ops hdmi5_component_ops = {
640 .bind = hdmi5_bind,
641 .unbind = hdmi5_unbind,
642 };
643
644 /* -----------------------------------------------------------------------------
645 * Probe & Remove, Suspend & Resume
646 */
647
hdmi5_init_output(struct omap_hdmi * hdmi)648 static int hdmi5_init_output(struct omap_hdmi *hdmi)
649 {
650 struct omap_dss_device *out = &hdmi->output;
651 int r;
652
653 out->dev = &hdmi->pdev->dev;
654 out->id = OMAP_DSS_OUTPUT_HDMI;
655 out->type = OMAP_DISPLAY_TYPE_HDMI;
656 out->name = "hdmi.0";
657 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
658 out->ops = &hdmi_ops;
659 out->owner = THIS_MODULE;
660 out->of_ports = BIT(0);
661 out->ops_flags = OMAP_DSS_DEVICE_OP_EDID;
662
663 r = omapdss_device_init_output(out);
664 if (r < 0)
665 return r;
666
667 omapdss_device_register(out);
668
669 return 0;
670 }
671
hdmi5_uninit_output(struct omap_hdmi * hdmi)672 static void hdmi5_uninit_output(struct omap_hdmi *hdmi)
673 {
674 struct omap_dss_device *out = &hdmi->output;
675
676 omapdss_device_unregister(out);
677 omapdss_device_cleanup_output(out);
678 }
679
hdmi5_probe_of(struct omap_hdmi * hdmi)680 static int hdmi5_probe_of(struct omap_hdmi *hdmi)
681 {
682 struct platform_device *pdev = hdmi->pdev;
683 struct device_node *node = pdev->dev.of_node;
684 struct device_node *ep;
685 int r;
686
687 ep = of_graph_get_endpoint_by_regs(node, 0, 0);
688 if (!ep)
689 return 0;
690
691 r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy);
692 of_node_put(ep);
693 return r;
694 }
695
hdmi5_probe(struct platform_device * pdev)696 static int hdmi5_probe(struct platform_device *pdev)
697 {
698 struct omap_hdmi *hdmi;
699 int irq;
700 int r;
701
702 hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
703 if (!hdmi)
704 return -ENOMEM;
705
706 hdmi->pdev = pdev;
707
708 dev_set_drvdata(&pdev->dev, hdmi);
709
710 mutex_init(&hdmi->lock);
711 spin_lock_init(&hdmi->audio_playing_lock);
712
713 r = hdmi5_probe_of(hdmi);
714 if (r)
715 goto err_free;
716
717 r = hdmi_wp_init(pdev, &hdmi->wp, 5);
718 if (r)
719 goto err_free;
720
721 r = hdmi_phy_init(pdev, &hdmi->phy, 5);
722 if (r)
723 goto err_free;
724
725 r = hdmi5_core_init(pdev, &hdmi->core);
726 if (r)
727 goto err_free;
728
729 irq = platform_get_irq(pdev, 0);
730 if (irq < 0) {
731 DSSERR("platform_get_irq failed\n");
732 r = -ENODEV;
733 goto err_free;
734 }
735
736 r = devm_request_threaded_irq(&pdev->dev, irq,
737 NULL, hdmi_irq_handler,
738 IRQF_ONESHOT, "OMAP HDMI", hdmi);
739 if (r) {
740 DSSERR("HDMI IRQ request failed\n");
741 goto err_free;
742 }
743
744 hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda");
745 if (IS_ERR(hdmi->vdda_reg)) {
746 r = PTR_ERR(hdmi->vdda_reg);
747 if (r != -EPROBE_DEFER)
748 DSSERR("can't get VDDA regulator\n");
749 goto err_free;
750 }
751
752 pm_runtime_enable(&pdev->dev);
753
754 r = hdmi5_init_output(hdmi);
755 if (r)
756 goto err_pm_disable;
757
758 r = component_add(&pdev->dev, &hdmi5_component_ops);
759 if (r)
760 goto err_uninit_output;
761
762 return 0;
763
764 err_uninit_output:
765 hdmi5_uninit_output(hdmi);
766 err_pm_disable:
767 pm_runtime_disable(&pdev->dev);
768 err_free:
769 kfree(hdmi);
770 return r;
771 }
772
hdmi5_remove(struct platform_device * pdev)773 static int hdmi5_remove(struct platform_device *pdev)
774 {
775 struct omap_hdmi *hdmi = platform_get_drvdata(pdev);
776
777 component_del(&pdev->dev, &hdmi5_component_ops);
778
779 hdmi5_uninit_output(hdmi);
780
781 pm_runtime_disable(&pdev->dev);
782
783 kfree(hdmi);
784 return 0;
785 }
786
787 static const struct of_device_id hdmi_of_match[] = {
788 { .compatible = "ti,omap5-hdmi", },
789 { .compatible = "ti,dra7-hdmi", },
790 {},
791 };
792
793 struct platform_driver omapdss_hdmi5hw_driver = {
794 .probe = hdmi5_probe,
795 .remove = hdmi5_remove,
796 .driver = {
797 .name = "omapdss_hdmi5",
798 .of_match_table = hdmi_of_match,
799 .suppress_bind_attrs = true,
800 },
801 };
802