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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * HDMI driver for OMAP5
4 *
5 * Copyright (C) 2014 Texas Instruments Incorporated - https://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/regulator/consumer.h>
28#include <linux/component.h>
29#include <linux/of.h>
30#include <linux/of_graph.h>
31#include <sound/omap-hdmi-audio.h>
32
33#include <drm/drm_atomic.h>
34#include <drm/drm_atomic_state_helper.h>
35#include <drm/drm_edid.h>
36
37#include "omapdss.h"
38#include "hdmi5_core.h"
39#include "dss.h"
40
41static int hdmi_runtime_get(struct omap_hdmi *hdmi)
42{
43 int r;
44
45 DSSDBG("hdmi_runtime_get\n");
46
47 r = pm_runtime_get_sync(&hdmi->pdev->dev);
48 if (WARN_ON(r < 0)) {
49 pm_runtime_put_noidle(&hdmi->pdev->dev);
50 return r;
51 }
52 return 0;
53}
54
55static void hdmi_runtime_put(struct omap_hdmi *hdmi)
56{
57 int r;
58
59 DSSDBG("hdmi_runtime_put\n");
60
61 r = pm_runtime_put_sync(&hdmi->pdev->dev);
62 WARN_ON(r < 0 && r != -ENOSYS);
63}
64
65static irqreturn_t hdmi_irq_handler(int irq, void *data)
66{
67 struct omap_hdmi *hdmi = data;
68 struct hdmi_wp_data *wp = &hdmi->wp;
69 u32 irqstatus;
70
71 irqstatus = hdmi_wp_get_irqstatus(wp);
72 hdmi_wp_set_irqstatus(wp, irqstatus);
73
74 if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
75 irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
76 u32 v;
77 /*
78 * If we get both connect and disconnect interrupts at the same
79 * time, turn off the PHY, clear interrupts, and restart, which
80 * raises connect interrupt if a cable is connected, or nothing
81 * if cable is not connected.
82 */
83
84 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
85
86 /*
87 * We always get bogus CONNECT & DISCONNECT interrupts when
88 * setting the PHY to LDOON. To ignore those, we force the RXDET
89 * line to 0 until the PHY power state has been changed.
90 */
91 v = hdmi_read_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL);
92 v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */
93 v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */
94 hdmi_write_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v);
95
96 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
97 HDMI_IRQ_LINK_DISCONNECT);
98
99 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
100
101 REG_FLD_MOD(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15);
102
103 } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
104 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
105 } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
106 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
107 }
108
109 return IRQ_HANDLED;
110}
111
112static int hdmi_power_on_core(struct omap_hdmi *hdmi)
113{
114 int r;
115
116 r = regulator_enable(hdmi->vdda_reg);
117 if (r)
118 return r;
119
120 r = hdmi_runtime_get(hdmi);
121 if (r)
122 goto err_runtime_get;
123
124 /* Make selection of HDMI in DSS */
125 dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK);
126
127 hdmi->core_enabled = true;
128
129 return 0;
130
131err_runtime_get:
132 regulator_disable(hdmi->vdda_reg);
133
134 return r;
135}
136
137static void hdmi_power_off_core(struct omap_hdmi *hdmi)
138{
139 hdmi->core_enabled = false;
140
141 hdmi_runtime_put(hdmi);
142 regulator_disable(hdmi->vdda_reg);
143}
144
145static int hdmi_power_on_full(struct omap_hdmi *hdmi)
146{
147 int r;
148 const struct videomode *vm;
149 struct dss_pll_clock_info hdmi_cinfo = { 0 };
150 unsigned int pc;
151
152 r = hdmi_power_on_core(hdmi);
153 if (r)
154 return r;
155
156 vm = &hdmi->cfg.vm;
157
158 DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive,
159 vm->vactive);
160
161 pc = vm->pixelclock;
162 if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
163 pc *= 2;
164
165 /* DSS_HDMI_TCLK is bitclk / 10 */
166 pc *= 10;
167
168 dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin),
169 pc, &hdmi_cinfo);
170
171 /* disable and clear irqs */
172 hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
173 hdmi_wp_set_irqstatus(&hdmi->wp,
174 hdmi_wp_get_irqstatus(&hdmi->wp));
175
176 r = dss_pll_enable(&hdmi->pll.pll);
177 if (r) {
178 DSSERR("Failed to enable PLL\n");
179 goto err_pll_enable;
180 }
181
182 r = dss_pll_set_config(&hdmi->pll.pll, &hdmi_cinfo);
183 if (r) {
184 DSSERR("Failed to configure PLL\n");
185 goto err_pll_cfg;
186 }
187
188 r = hdmi_phy_configure(&hdmi->phy, hdmi_cinfo.clkdco,
189 hdmi_cinfo.clkout[0]);
190 if (r) {
191 DSSDBG("Failed to start PHY\n");
192 goto err_phy_cfg;
193 }
194
195 r = hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_LDOON);
196 if (r)
197 goto err_phy_pwr;
198
199 hdmi5_configure(&hdmi->core, &hdmi->wp, &hdmi->cfg);
200
201 r = dss_mgr_enable(&hdmi->output);
202 if (r)
203 goto err_mgr_enable;
204
205 r = hdmi_wp_video_start(&hdmi->wp);
206 if (r)
207 goto err_vid_enable;
208
209 hdmi_wp_set_irqenable(&hdmi->wp,
210 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
211
212 return 0;
213
214err_vid_enable:
215 dss_mgr_disable(&hdmi->output);
216err_mgr_enable:
217 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
218err_phy_pwr:
219err_phy_cfg:
220err_pll_cfg:
221 dss_pll_disable(&hdmi->pll.pll);
222err_pll_enable:
223 hdmi_power_off_core(hdmi);
224 return -EIO;
225}
226
227static void hdmi_power_off_full(struct omap_hdmi *hdmi)
228{
229 hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
230
231 hdmi_wp_video_stop(&hdmi->wp);
232
233 dss_mgr_disable(&hdmi->output);
234
235 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
236
237 dss_pll_disable(&hdmi->pll.pll);
238
239 hdmi_power_off_core(hdmi);
240}
241
242static int hdmi_dump_regs(struct seq_file *s, void *p)
243{
244 struct omap_hdmi *hdmi = s->private;
245
246 mutex_lock(&hdmi->lock);
247
248 if (hdmi_runtime_get(hdmi)) {
249 mutex_unlock(&hdmi->lock);
250 return 0;
251 }
252
253 hdmi_wp_dump(&hdmi->wp, s);
254 hdmi_pll_dump(&hdmi->pll, s);
255 hdmi_phy_dump(&hdmi->phy, s);
256 hdmi5_core_dump(&hdmi->core, s);
257
258 hdmi_runtime_put(hdmi);
259 mutex_unlock(&hdmi->lock);
260 return 0;
261}
262
263static void hdmi_start_audio_stream(struct omap_hdmi *hd)
264{
265 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
266 hdmi_wp_audio_enable(&hd->wp, true);
267 hdmi_wp_audio_core_req_enable(&hd->wp, true);
268}
269
270static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
271{
272 hdmi_wp_audio_core_req_enable(&hd->wp, false);
273 hdmi_wp_audio_enable(&hd->wp, false);
274 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2);
275}
276
277static int hdmi_core_enable(struct omap_hdmi *hdmi)
278{
279 int r = 0;
280
281 DSSDBG("ENTER omapdss_hdmi_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
299static void hdmi_core_disable(struct omap_hdmi *hdmi)
300{
301 DSSDBG("Enter omapdss_hdmi_core_disable\n");
302
303 mutex_lock(&hdmi->lock);
304
305 hdmi_power_off_core(hdmi);
306
307 mutex_unlock(&hdmi->lock);
308}
309
310/* -----------------------------------------------------------------------------
311 * DRM Bridge Operations
312 */
313
314static int hdmi5_bridge_attach(struct drm_bridge *bridge,
315 enum drm_bridge_attach_flags flags)
316{
317 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
318
319 if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR))
320 return -EINVAL;
321
322 return drm_bridge_attach(bridge->encoder, hdmi->output.next_bridge,
323 bridge, flags);
324}
325
326static void hdmi5_bridge_mode_set(struct drm_bridge *bridge,
327 const struct drm_display_mode *mode,
328 const struct drm_display_mode *adjusted_mode)
329{
330 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
331
332 mutex_lock(&hdmi->lock);
333
334 drm_display_mode_to_videomode(adjusted_mode, &hdmi->cfg.vm);
335
336 dispc_set_tv_pclk(hdmi->dss->dispc, adjusted_mode->clock * 1000);
337
338 mutex_unlock(&hdmi->lock);
339}
340
341static void hdmi5_bridge_enable(struct drm_bridge *bridge,
342 struct drm_bridge_state *bridge_state)
343{
344 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
345 struct drm_atomic_state *state = bridge_state->base.state;
346 struct drm_connector_state *conn_state;
347 struct drm_connector *connector;
348 struct drm_crtc_state *crtc_state;
349 unsigned long flags;
350 int ret;
351
352 /*
353 * None of these should fail, as the bridge can't be enabled without a
354 * valid CRTC to connector path with fully populated new states.
355 */
356 connector = drm_atomic_get_new_connector_for_encoder(state,
357 bridge->encoder);
358 if (WARN_ON(!connector))
359 return;
360 conn_state = drm_atomic_get_new_connector_state(state, connector);
361 if (WARN_ON(!conn_state))
362 return;
363 crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
364 if (WARN_ON(!crtc_state))
365 return;
366
367 hdmi->cfg.hdmi_dvi_mode = connector->display_info.is_hdmi
368 ? HDMI_HDMI : HDMI_DVI;
369
370 if (connector->display_info.is_hdmi) {
371 const struct drm_display_mode *mode;
372 struct hdmi_avi_infoframe avi;
373
374 mode = &crtc_state->adjusted_mode;
375 ret = drm_hdmi_avi_infoframe_from_display_mode(&avi, connector,
376 mode);
377 if (ret == 0)
378 hdmi->cfg.infoframe = avi;
379 }
380
381 mutex_lock(&hdmi->lock);
382
383 ret = hdmi_power_on_full(hdmi);
384 if (ret) {
385 DSSERR("failed to power on device\n");
386 goto done;
387 }
388
389 if (hdmi->audio_configured) {
390 ret = hdmi5_audio_config(&hdmi->core, &hdmi->wp,
391 &hdmi->audio_config,
392 hdmi->cfg.vm.pixelclock);
393 if (ret) {
394 DSSERR("Error restoring audio configuration: %d", ret);
395 hdmi->audio_abort_cb(&hdmi->pdev->dev);
396 hdmi->audio_configured = false;
397 }
398 }
399
400 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
401 if (hdmi->audio_configured && hdmi->audio_playing)
402 hdmi_start_audio_stream(hdmi);
403 hdmi->display_enabled = true;
404 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
405
406done:
407 mutex_unlock(&hdmi->lock);
408}
409
410static void hdmi5_bridge_disable(struct drm_bridge *bridge,
411 struct drm_bridge_state *bridge_state)
412{
413 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
414 unsigned long flags;
415
416 mutex_lock(&hdmi->lock);
417
418 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
419 hdmi_stop_audio_stream(hdmi);
420 hdmi->display_enabled = false;
421 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
422
423 hdmi_power_off_full(hdmi);
424
425 mutex_unlock(&hdmi->lock);
426}
427
428static struct edid *hdmi5_bridge_get_edid(struct drm_bridge *bridge,
429 struct drm_connector *connector)
430{
431 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
432 struct edid *edid;
433 bool need_enable;
434 int idlemode;
435 int r;
436
437 need_enable = hdmi->core_enabled == false;
438
439 if (need_enable) {
440 r = hdmi_core_enable(hdmi);
441 if (r)
442 return NULL;
443 }
444
445 mutex_lock(&hdmi->lock);
446 r = hdmi_runtime_get(hdmi);
447 BUG_ON(r);
448
449 idlemode = REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
450 /* No-idle mode */
451 REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
452
453 hdmi5_core_ddc_init(&hdmi->core);
454
455 edid = drm_do_get_edid(connector, hdmi5_core_ddc_read, &hdmi->core);
456
457 hdmi5_core_ddc_uninit(&hdmi->core);
458
459 REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2);
460
461 hdmi_runtime_put(hdmi);
462 mutex_unlock(&hdmi->lock);
463
464 if (need_enable)
465 hdmi_core_disable(hdmi);
466
467 return (struct edid *)edid;
468}
469
470static const struct drm_bridge_funcs hdmi5_bridge_funcs = {
471 .attach = hdmi5_bridge_attach,
472 .mode_set = hdmi5_bridge_mode_set,
473 .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
474 .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
475 .atomic_reset = drm_atomic_helper_bridge_reset,
476 .atomic_enable = hdmi5_bridge_enable,
477 .atomic_disable = hdmi5_bridge_disable,
478 .get_edid = hdmi5_bridge_get_edid,
479};
480
481static void hdmi5_bridge_init(struct omap_hdmi *hdmi)
482{
483 hdmi->bridge.funcs = &hdmi5_bridge_funcs;
484 hdmi->bridge.of_node = hdmi->pdev->dev.of_node;
485 hdmi->bridge.ops = DRM_BRIDGE_OP_EDID;
486 hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
487
488 drm_bridge_add(&hdmi->bridge);
489}
490
491static void hdmi5_bridge_cleanup(struct omap_hdmi *hdmi)
492{
493 drm_bridge_remove(&hdmi->bridge);
494}
495
496/* -----------------------------------------------------------------------------
497 * Audio Callbacks
498 */
499
500static int hdmi_audio_startup(struct device *dev,
501 void (*abort_cb)(struct device *dev))
502{
503 struct omap_hdmi *hd = dev_get_drvdata(dev);
504
505 mutex_lock(&hd->lock);
506
507 WARN_ON(hd->audio_abort_cb != NULL);
508
509 hd->audio_abort_cb = abort_cb;
510
511 mutex_unlock(&hd->lock);
512
513 return 0;
514}
515
516static int hdmi_audio_shutdown(struct device *dev)
517{
518 struct omap_hdmi *hd = dev_get_drvdata(dev);
519
520 mutex_lock(&hd->lock);
521 hd->audio_abort_cb = NULL;
522 hd->audio_configured = false;
523 hd->audio_playing = false;
524 mutex_unlock(&hd->lock);
525
526 return 0;
527}
528
529static int hdmi_audio_start(struct device *dev)
530{
531 struct omap_hdmi *hd = dev_get_drvdata(dev);
532 unsigned long flags;
533
534 spin_lock_irqsave(&hd->audio_playing_lock, flags);
535
536 if (hd->display_enabled) {
537 if (!hdmi_mode_has_audio(&hd->cfg))
538 DSSERR("%s: Video mode does not support audio\n",
539 __func__);
540 hdmi_start_audio_stream(hd);
541 }
542 hd->audio_playing = true;
543
544 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
545 return 0;
546}
547
548static void hdmi_audio_stop(struct device *dev)
549{
550 struct omap_hdmi *hd = dev_get_drvdata(dev);
551 unsigned long flags;
552
553 if (!hdmi_mode_has_audio(&hd->cfg))
554 DSSERR("%s: Video mode does not support audio\n", __func__);
555
556 spin_lock_irqsave(&hd->audio_playing_lock, flags);
557
558 if (hd->display_enabled)
559 hdmi_stop_audio_stream(hd);
560 hd->audio_playing = false;
561
562 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
563}
564
565static int hdmi_audio_config(struct device *dev,
566 struct omap_dss_audio *dss_audio)
567{
568 struct omap_hdmi *hd = dev_get_drvdata(dev);
569 int ret = 0;
570
571 mutex_lock(&hd->lock);
572
573 if (hd->display_enabled) {
574 ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
575 hd->cfg.vm.pixelclock);
576 if (ret)
577 goto out;
578 }
579
580 hd->audio_configured = true;
581 hd->audio_config = *dss_audio;
582out:
583 mutex_unlock(&hd->lock);
584
585 return ret;
586}
587
588static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
589 .audio_startup = hdmi_audio_startup,
590 .audio_shutdown = hdmi_audio_shutdown,
591 .audio_start = hdmi_audio_start,
592 .audio_stop = hdmi_audio_stop,
593 .audio_config = hdmi_audio_config,
594};
595
596static int hdmi_audio_register(struct omap_hdmi *hdmi)
597{
598 struct omap_hdmi_audio_pdata pdata = {
599 .dev = &hdmi->pdev->dev,
600 .version = 5,
601 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi->wp),
602 .ops = &hdmi_audio_ops,
603 };
604
605 hdmi->audio_pdev = platform_device_register_data(
606 &hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
607 &pdata, sizeof(pdata));
608
609 if (IS_ERR(hdmi->audio_pdev))
610 return PTR_ERR(hdmi->audio_pdev);
611
612 hdmi_runtime_get(hdmi);
613 hdmi->wp_idlemode =
614 REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
615 hdmi_runtime_put(hdmi);
616
617 return 0;
618}
619
620/* -----------------------------------------------------------------------------
621 * Component Bind & Unbind
622 */
623
624static int hdmi5_bind(struct device *dev, struct device *master, void *data)
625{
626 struct dss_device *dss = dss_get_device(master);
627 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
628 int r;
629
630 hdmi->dss = dss;
631
632 r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
633 if (r)
634 return r;
635
636 r = hdmi_audio_register(hdmi);
637 if (r) {
638 DSSERR("Registering HDMI audio failed %d\n", r);
639 goto err_pll_uninit;
640 }
641
642 hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
643 hdmi);
644
645 return 0;
646
647err_pll_uninit:
648 hdmi_pll_uninit(&hdmi->pll);
649 return r;
650}
651
652static void hdmi5_unbind(struct device *dev, struct device *master, void *data)
653{
654 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
655
656 dss_debugfs_remove_file(hdmi->debugfs);
657
658 if (hdmi->audio_pdev)
659 platform_device_unregister(hdmi->audio_pdev);
660
661 hdmi_pll_uninit(&hdmi->pll);
662}
663
664static const struct component_ops hdmi5_component_ops = {
665 .bind = hdmi5_bind,
666 .unbind = hdmi5_unbind,
667};
668
669/* -----------------------------------------------------------------------------
670 * Probe & Remove, Suspend & Resume
671 */
672
673static int hdmi5_init_output(struct omap_hdmi *hdmi)
674{
675 struct omap_dss_device *out = &hdmi->output;
676 int r;
677
678 hdmi5_bridge_init(hdmi);
679
680 out->dev = &hdmi->pdev->dev;
681 out->id = OMAP_DSS_OUTPUT_HDMI;
682 out->type = OMAP_DISPLAY_TYPE_HDMI;
683 out->name = "hdmi.0";
684 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
685 out->of_port = 0;
686
687 r = omapdss_device_init_output(out, &hdmi->bridge);
688 if (r < 0) {
689 hdmi5_bridge_cleanup(hdmi);
690 return r;
691 }
692
693 omapdss_device_register(out);
694
695 return 0;
696}
697
698static void hdmi5_uninit_output(struct omap_hdmi *hdmi)
699{
700 struct omap_dss_device *out = &hdmi->output;
701
702 omapdss_device_unregister(out);
703 omapdss_device_cleanup_output(out);
704
705 hdmi5_bridge_cleanup(hdmi);
706}
707
708static int hdmi5_probe_of(struct omap_hdmi *hdmi)
709{
710 struct platform_device *pdev = hdmi->pdev;
711 struct device_node *node = pdev->dev.of_node;
712 struct device_node *ep;
713 int r;
714
715 ep = of_graph_get_endpoint_by_regs(node, 0, 0);
716 if (!ep)
717 return 0;
718
719 r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy);
720 of_node_put(ep);
721 return r;
722}
723
724static int hdmi5_probe(struct platform_device *pdev)
725{
726 struct omap_hdmi *hdmi;
727 int irq;
728 int r;
729
730 hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
731 if (!hdmi)
732 return -ENOMEM;
733
734 hdmi->pdev = pdev;
735
736 dev_set_drvdata(&pdev->dev, hdmi);
737
738 mutex_init(&hdmi->lock);
739 spin_lock_init(&hdmi->audio_playing_lock);
740
741 r = hdmi5_probe_of(hdmi);
742 if (r)
743 goto err_free;
744
745 r = hdmi_wp_init(pdev, &hdmi->wp, 5);
746 if (r)
747 goto err_free;
748
749 r = hdmi_phy_init(pdev, &hdmi->phy, 5);
750 if (r)
751 goto err_free;
752
753 r = hdmi5_core_init(pdev, &hdmi->core);
754 if (r)
755 goto err_free;
756
757 irq = platform_get_irq(pdev, 0);
758 if (irq < 0) {
759 DSSERR("platform_get_irq failed\n");
760 r = -ENODEV;
761 goto err_free;
762 }
763
764 r = devm_request_threaded_irq(&pdev->dev, irq,
765 NULL, hdmi_irq_handler,
766 IRQF_ONESHOT, "OMAP HDMI", hdmi);
767 if (r) {
768 DSSERR("HDMI IRQ request failed\n");
769 goto err_free;
770 }
771
772 hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda");
773 if (IS_ERR(hdmi->vdda_reg)) {
774 r = PTR_ERR(hdmi->vdda_reg);
775 if (r != -EPROBE_DEFER)
776 DSSERR("can't get VDDA regulator\n");
777 goto err_free;
778 }
779
780 pm_runtime_enable(&pdev->dev);
781
782 r = hdmi5_init_output(hdmi);
783 if (r)
784 goto err_pm_disable;
785
786 r = component_add(&pdev->dev, &hdmi5_component_ops);
787 if (r)
788 goto err_uninit_output;
789
790 return 0;
791
792err_uninit_output:
793 hdmi5_uninit_output(hdmi);
794err_pm_disable:
795 pm_runtime_disable(&pdev->dev);
796err_free:
797 kfree(hdmi);
798 return r;
799}
800
801static void hdmi5_remove(struct platform_device *pdev)
802{
803 struct omap_hdmi *hdmi = platform_get_drvdata(pdev);
804
805 component_del(&pdev->dev, &hdmi5_component_ops);
806
807 hdmi5_uninit_output(hdmi);
808
809 pm_runtime_disable(&pdev->dev);
810
811 kfree(hdmi);
812}
813
814static const struct of_device_id hdmi_of_match[] = {
815 { .compatible = "ti,omap5-hdmi", },
816 { .compatible = "ti,dra7-hdmi", },
817 {},
818};
819
820struct platform_driver omapdss_hdmi5hw_driver = {
821 .probe = hdmi5_probe,
822 .remove_new = hdmi5_remove,
823 .driver = {
824 .name = "omapdss_hdmi5",
825 .of_match_table = hdmi_of_match,
826 .suppress_bind_attrs = true,
827 },
828};
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * HDMI driver for OMAP5
4 *
5 * Copyright (C) 2014 Texas Instruments Incorporated - https://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/regulator/consumer.h>
28#include <linux/component.h>
29#include <linux/of.h>
30#include <linux/of_graph.h>
31#include <sound/omap-hdmi-audio.h>
32
33#include <drm/drm_atomic.h>
34#include <drm/drm_atomic_state_helper.h>
35
36#include "omapdss.h"
37#include "hdmi5_core.h"
38#include "dss.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 if (WARN_ON(r < 0)) {
48 pm_runtime_put_noidle(&hdmi->pdev->dev);
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 u32 v;
76 /*
77 * If we get both connect and disconnect interrupts at the same
78 * time, turn off the PHY, clear interrupts, and restart, which
79 * raises connect interrupt if a cable is connected, or nothing
80 * if cable is not connected.
81 */
82
83 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
84
85 /*
86 * We always get bogus CONNECT & DISCONNECT interrupts when
87 * setting the PHY to LDOON. To ignore those, we force the RXDET
88 * line to 0 until the PHY power state has been changed.
89 */
90 v = hdmi_read_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL);
91 v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */
92 v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */
93 hdmi_write_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v);
94
95 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
96 HDMI_IRQ_LINK_DISCONNECT);
97
98 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
99
100 REG_FLD_MOD(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15);
101
102 } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
103 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
104 } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
105 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
106 }
107
108 return IRQ_HANDLED;
109}
110
111static int hdmi_power_on_core(struct omap_hdmi *hdmi)
112{
113 int r;
114
115 r = regulator_enable(hdmi->vdda_reg);
116 if (r)
117 return r;
118
119 r = hdmi_runtime_get(hdmi);
120 if (r)
121 goto err_runtime_get;
122
123 /* Make selection of HDMI in DSS */
124 dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK);
125
126 hdmi->core_enabled = true;
127
128 return 0;
129
130err_runtime_get:
131 regulator_disable(hdmi->vdda_reg);
132
133 return r;
134}
135
136static void hdmi_power_off_core(struct omap_hdmi *hdmi)
137{
138 hdmi->core_enabled = false;
139
140 hdmi_runtime_put(hdmi);
141 regulator_disable(hdmi->vdda_reg);
142}
143
144static int hdmi_power_on_full(struct omap_hdmi *hdmi)
145{
146 int r;
147 const struct videomode *vm;
148 struct dss_pll_clock_info hdmi_cinfo = { 0 };
149 unsigned int pc;
150
151 r = hdmi_power_on_core(hdmi);
152 if (r)
153 return r;
154
155 vm = &hdmi->cfg.vm;
156
157 DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive,
158 vm->vactive);
159
160 pc = vm->pixelclock;
161 if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
162 pc *= 2;
163
164 /* DSS_HDMI_TCLK is bitclk / 10 */
165 pc *= 10;
166
167 dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin),
168 pc, &hdmi_cinfo);
169
170 /* disable and clear irqs */
171 hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
172 hdmi_wp_set_irqstatus(&hdmi->wp,
173 hdmi_wp_get_irqstatus(&hdmi->wp));
174
175 r = dss_pll_enable(&hdmi->pll.pll);
176 if (r) {
177 DSSERR("Failed to enable PLL\n");
178 goto err_pll_enable;
179 }
180
181 r = dss_pll_set_config(&hdmi->pll.pll, &hdmi_cinfo);
182 if (r) {
183 DSSERR("Failed to configure PLL\n");
184 goto err_pll_cfg;
185 }
186
187 r = hdmi_phy_configure(&hdmi->phy, hdmi_cinfo.clkdco,
188 hdmi_cinfo.clkout[0]);
189 if (r) {
190 DSSDBG("Failed to start PHY\n");
191 goto err_phy_cfg;
192 }
193
194 r = hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_LDOON);
195 if (r)
196 goto err_phy_pwr;
197
198 hdmi5_configure(&hdmi->core, &hdmi->wp, &hdmi->cfg);
199
200 r = dss_mgr_enable(&hdmi->output);
201 if (r)
202 goto err_mgr_enable;
203
204 r = hdmi_wp_video_start(&hdmi->wp);
205 if (r)
206 goto err_vid_enable;
207
208 hdmi_wp_set_irqenable(&hdmi->wp,
209 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
210
211 return 0;
212
213err_vid_enable:
214 dss_mgr_disable(&hdmi->output);
215err_mgr_enable:
216 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
217err_phy_pwr:
218err_phy_cfg:
219err_pll_cfg:
220 dss_pll_disable(&hdmi->pll.pll);
221err_pll_enable:
222 hdmi_power_off_core(hdmi);
223 return -EIO;
224}
225
226static void hdmi_power_off_full(struct omap_hdmi *hdmi)
227{
228 hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
229
230 hdmi_wp_video_stop(&hdmi->wp);
231
232 dss_mgr_disable(&hdmi->output);
233
234 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
235
236 dss_pll_disable(&hdmi->pll.pll);
237
238 hdmi_power_off_core(hdmi);
239}
240
241static int hdmi_dump_regs(struct seq_file *s, void *p)
242{
243 struct omap_hdmi *hdmi = s->private;
244
245 mutex_lock(&hdmi->lock);
246
247 if (hdmi_runtime_get(hdmi)) {
248 mutex_unlock(&hdmi->lock);
249 return 0;
250 }
251
252 hdmi_wp_dump(&hdmi->wp, s);
253 hdmi_pll_dump(&hdmi->pll, s);
254 hdmi_phy_dump(&hdmi->phy, s);
255 hdmi5_core_dump(&hdmi->core, s);
256
257 hdmi_runtime_put(hdmi);
258 mutex_unlock(&hdmi->lock);
259 return 0;
260}
261
262static void hdmi_start_audio_stream(struct omap_hdmi *hd)
263{
264 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
265 hdmi_wp_audio_enable(&hd->wp, true);
266 hdmi_wp_audio_core_req_enable(&hd->wp, true);
267}
268
269static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
270{
271 hdmi_wp_audio_core_req_enable(&hd->wp, false);
272 hdmi_wp_audio_enable(&hd->wp, false);
273 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2);
274}
275
276static int hdmi_core_enable(struct omap_hdmi *hdmi)
277{
278 int r = 0;
279
280 DSSDBG("ENTER omapdss_hdmi_core_enable\n");
281
282 mutex_lock(&hdmi->lock);
283
284 r = hdmi_power_on_core(hdmi);
285 if (r) {
286 DSSERR("failed to power on device\n");
287 goto err0;
288 }
289
290 mutex_unlock(&hdmi->lock);
291 return 0;
292
293err0:
294 mutex_unlock(&hdmi->lock);
295 return r;
296}
297
298static void hdmi_core_disable(struct omap_hdmi *hdmi)
299{
300 DSSDBG("Enter omapdss_hdmi_core_disable\n");
301
302 mutex_lock(&hdmi->lock);
303
304 hdmi_power_off_core(hdmi);
305
306 mutex_unlock(&hdmi->lock);
307}
308
309/* -----------------------------------------------------------------------------
310 * DRM Bridge Operations
311 */
312
313static int hdmi5_bridge_attach(struct drm_bridge *bridge,
314 enum drm_bridge_attach_flags flags)
315{
316 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
317
318 if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR))
319 return -EINVAL;
320
321 return drm_bridge_attach(bridge->encoder, hdmi->output.next_bridge,
322 bridge, flags);
323}
324
325static void hdmi5_bridge_mode_set(struct drm_bridge *bridge,
326 const struct drm_display_mode *mode,
327 const struct drm_display_mode *adjusted_mode)
328{
329 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
330
331 mutex_lock(&hdmi->lock);
332
333 drm_display_mode_to_videomode(adjusted_mode, &hdmi->cfg.vm);
334
335 dispc_set_tv_pclk(hdmi->dss->dispc, adjusted_mode->clock * 1000);
336
337 mutex_unlock(&hdmi->lock);
338}
339
340static void hdmi5_bridge_enable(struct drm_bridge *bridge,
341 struct drm_bridge_state *bridge_state)
342{
343 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
344 struct drm_atomic_state *state = bridge_state->base.state;
345 struct drm_connector_state *conn_state;
346 struct drm_connector *connector;
347 struct drm_crtc_state *crtc_state;
348 unsigned long flags;
349 int ret;
350
351 /*
352 * None of these should fail, as the bridge can't be enabled without a
353 * valid CRTC to connector path with fully populated new states.
354 */
355 connector = drm_atomic_get_new_connector_for_encoder(state,
356 bridge->encoder);
357 if (WARN_ON(!connector))
358 return;
359 conn_state = drm_atomic_get_new_connector_state(state, connector);
360 if (WARN_ON(!conn_state))
361 return;
362 crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
363 if (WARN_ON(!crtc_state))
364 return;
365
366 hdmi->cfg.hdmi_dvi_mode = connector->display_info.is_hdmi
367 ? HDMI_HDMI : HDMI_DVI;
368
369 if (connector->display_info.is_hdmi) {
370 const struct drm_display_mode *mode;
371 struct hdmi_avi_infoframe avi;
372
373 mode = &crtc_state->adjusted_mode;
374 ret = drm_hdmi_avi_infoframe_from_display_mode(&avi, connector,
375 mode);
376 if (ret == 0)
377 hdmi->cfg.infoframe = avi;
378 }
379
380 mutex_lock(&hdmi->lock);
381
382 ret = hdmi_power_on_full(hdmi);
383 if (ret) {
384 DSSERR("failed to power on device\n");
385 goto done;
386 }
387
388 if (hdmi->audio_configured) {
389 ret = hdmi5_audio_config(&hdmi->core, &hdmi->wp,
390 &hdmi->audio_config,
391 hdmi->cfg.vm.pixelclock);
392 if (ret) {
393 DSSERR("Error restoring audio configuration: %d", ret);
394 hdmi->audio_abort_cb(&hdmi->pdev->dev);
395 hdmi->audio_configured = false;
396 }
397 }
398
399 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
400 if (hdmi->audio_configured && hdmi->audio_playing)
401 hdmi_start_audio_stream(hdmi);
402 hdmi->display_enabled = true;
403 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
404
405done:
406 mutex_unlock(&hdmi->lock);
407}
408
409static void hdmi5_bridge_disable(struct drm_bridge *bridge,
410 struct drm_bridge_state *bridge_state)
411{
412 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
413 unsigned long flags;
414
415 mutex_lock(&hdmi->lock);
416
417 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
418 hdmi_stop_audio_stream(hdmi);
419 hdmi->display_enabled = false;
420 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
421
422 hdmi_power_off_full(hdmi);
423
424 mutex_unlock(&hdmi->lock);
425}
426
427static struct edid *hdmi5_bridge_get_edid(struct drm_bridge *bridge,
428 struct drm_connector *connector)
429{
430 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
431 struct edid *edid;
432 bool need_enable;
433 int idlemode;
434 int r;
435
436 need_enable = hdmi->core_enabled == false;
437
438 if (need_enable) {
439 r = hdmi_core_enable(hdmi);
440 if (r)
441 return NULL;
442 }
443
444 mutex_lock(&hdmi->lock);
445 r = hdmi_runtime_get(hdmi);
446 BUG_ON(r);
447
448 idlemode = REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
449 /* No-idle mode */
450 REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
451
452 hdmi5_core_ddc_init(&hdmi->core);
453
454 edid = drm_do_get_edid(connector, hdmi5_core_ddc_read, &hdmi->core);
455
456 hdmi5_core_ddc_uninit(&hdmi->core);
457
458 REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2);
459
460 hdmi_runtime_put(hdmi);
461 mutex_unlock(&hdmi->lock);
462
463 if (need_enable)
464 hdmi_core_disable(hdmi);
465
466 return (struct edid *)edid;
467}
468
469static const struct drm_bridge_funcs hdmi5_bridge_funcs = {
470 .attach = hdmi5_bridge_attach,
471 .mode_set = hdmi5_bridge_mode_set,
472 .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
473 .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
474 .atomic_reset = drm_atomic_helper_bridge_reset,
475 .atomic_enable = hdmi5_bridge_enable,
476 .atomic_disable = hdmi5_bridge_disable,
477 .get_edid = hdmi5_bridge_get_edid,
478};
479
480static void hdmi5_bridge_init(struct omap_hdmi *hdmi)
481{
482 hdmi->bridge.funcs = &hdmi5_bridge_funcs;
483 hdmi->bridge.of_node = hdmi->pdev->dev.of_node;
484 hdmi->bridge.ops = DRM_BRIDGE_OP_EDID;
485 hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
486
487 drm_bridge_add(&hdmi->bridge);
488}
489
490static void hdmi5_bridge_cleanup(struct omap_hdmi *hdmi)
491{
492 drm_bridge_remove(&hdmi->bridge);
493}
494
495/* -----------------------------------------------------------------------------
496 * Audio Callbacks
497 */
498
499static int hdmi_audio_startup(struct device *dev,
500 void (*abort_cb)(struct device *dev))
501{
502 struct omap_hdmi *hd = dev_get_drvdata(dev);
503
504 mutex_lock(&hd->lock);
505
506 WARN_ON(hd->audio_abort_cb != NULL);
507
508 hd->audio_abort_cb = abort_cb;
509
510 mutex_unlock(&hd->lock);
511
512 return 0;
513}
514
515static int hdmi_audio_shutdown(struct device *dev)
516{
517 struct omap_hdmi *hd = dev_get_drvdata(dev);
518
519 mutex_lock(&hd->lock);
520 hd->audio_abort_cb = NULL;
521 hd->audio_configured = false;
522 hd->audio_playing = false;
523 mutex_unlock(&hd->lock);
524
525 return 0;
526}
527
528static int hdmi_audio_start(struct device *dev)
529{
530 struct omap_hdmi *hd = dev_get_drvdata(dev);
531 unsigned long flags;
532
533 spin_lock_irqsave(&hd->audio_playing_lock, flags);
534
535 if (hd->display_enabled) {
536 if (!hdmi_mode_has_audio(&hd->cfg))
537 DSSERR("%s: Video mode does not support audio\n",
538 __func__);
539 hdmi_start_audio_stream(hd);
540 }
541 hd->audio_playing = true;
542
543 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
544 return 0;
545}
546
547static void hdmi_audio_stop(struct device *dev)
548{
549 struct omap_hdmi *hd = dev_get_drvdata(dev);
550 unsigned long flags;
551
552 if (!hdmi_mode_has_audio(&hd->cfg))
553 DSSERR("%s: Video mode does not support audio\n", __func__);
554
555 spin_lock_irqsave(&hd->audio_playing_lock, flags);
556
557 if (hd->display_enabled)
558 hdmi_stop_audio_stream(hd);
559 hd->audio_playing = false;
560
561 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
562}
563
564static int hdmi_audio_config(struct device *dev,
565 struct omap_dss_audio *dss_audio)
566{
567 struct omap_hdmi *hd = dev_get_drvdata(dev);
568 int ret = 0;
569
570 mutex_lock(&hd->lock);
571
572 if (hd->display_enabled) {
573 ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
574 hd->cfg.vm.pixelclock);
575 if (ret)
576 goto out;
577 }
578
579 hd->audio_configured = true;
580 hd->audio_config = *dss_audio;
581out:
582 mutex_unlock(&hd->lock);
583
584 return ret;
585}
586
587static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
588 .audio_startup = hdmi_audio_startup,
589 .audio_shutdown = hdmi_audio_shutdown,
590 .audio_start = hdmi_audio_start,
591 .audio_stop = hdmi_audio_stop,
592 .audio_config = hdmi_audio_config,
593};
594
595static int hdmi_audio_register(struct omap_hdmi *hdmi)
596{
597 struct omap_hdmi_audio_pdata pdata = {
598 .dev = &hdmi->pdev->dev,
599 .version = 5,
600 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi->wp),
601 .ops = &hdmi_audio_ops,
602 };
603
604 hdmi->audio_pdev = platform_device_register_data(
605 &hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
606 &pdata, sizeof(pdata));
607
608 if (IS_ERR(hdmi->audio_pdev))
609 return PTR_ERR(hdmi->audio_pdev);
610
611 hdmi_runtime_get(hdmi);
612 hdmi->wp_idlemode =
613 REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
614 hdmi_runtime_put(hdmi);
615
616 return 0;
617}
618
619/* -----------------------------------------------------------------------------
620 * Component Bind & Unbind
621 */
622
623static int hdmi5_bind(struct device *dev, struct device *master, void *data)
624{
625 struct dss_device *dss = dss_get_device(master);
626 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
627 int r;
628
629 hdmi->dss = dss;
630
631 r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
632 if (r)
633 return r;
634
635 r = hdmi_audio_register(hdmi);
636 if (r) {
637 DSSERR("Registering HDMI audio failed %d\n", r);
638 goto err_pll_uninit;
639 }
640
641 hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
642 hdmi);
643
644 return 0;
645
646err_pll_uninit:
647 hdmi_pll_uninit(&hdmi->pll);
648 return r;
649}
650
651static void hdmi5_unbind(struct device *dev, struct device *master, void *data)
652{
653 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
654
655 dss_debugfs_remove_file(hdmi->debugfs);
656
657 if (hdmi->audio_pdev)
658 platform_device_unregister(hdmi->audio_pdev);
659
660 hdmi_pll_uninit(&hdmi->pll);
661}
662
663static const struct component_ops hdmi5_component_ops = {
664 .bind = hdmi5_bind,
665 .unbind = hdmi5_unbind,
666};
667
668/* -----------------------------------------------------------------------------
669 * Probe & Remove, Suspend & Resume
670 */
671
672static int hdmi5_init_output(struct omap_hdmi *hdmi)
673{
674 struct omap_dss_device *out = &hdmi->output;
675 int r;
676
677 hdmi5_bridge_init(hdmi);
678
679 out->dev = &hdmi->pdev->dev;
680 out->id = OMAP_DSS_OUTPUT_HDMI;
681 out->type = OMAP_DISPLAY_TYPE_HDMI;
682 out->name = "hdmi.0";
683 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
684 out->of_port = 0;
685
686 r = omapdss_device_init_output(out, &hdmi->bridge);
687 if (r < 0) {
688 hdmi5_bridge_cleanup(hdmi);
689 return r;
690 }
691
692 omapdss_device_register(out);
693
694 return 0;
695}
696
697static void hdmi5_uninit_output(struct omap_hdmi *hdmi)
698{
699 struct omap_dss_device *out = &hdmi->output;
700
701 omapdss_device_unregister(out);
702 omapdss_device_cleanup_output(out);
703
704 hdmi5_bridge_cleanup(hdmi);
705}
706
707static int hdmi5_probe_of(struct omap_hdmi *hdmi)
708{
709 struct platform_device *pdev = hdmi->pdev;
710 struct device_node *node = pdev->dev.of_node;
711 struct device_node *ep;
712 int r;
713
714 ep = of_graph_get_endpoint_by_regs(node, 0, 0);
715 if (!ep)
716 return 0;
717
718 r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy);
719 of_node_put(ep);
720 return r;
721}
722
723static int hdmi5_probe(struct platform_device *pdev)
724{
725 struct omap_hdmi *hdmi;
726 int irq;
727 int r;
728
729 hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
730 if (!hdmi)
731 return -ENOMEM;
732
733 hdmi->pdev = pdev;
734
735 dev_set_drvdata(&pdev->dev, hdmi);
736
737 mutex_init(&hdmi->lock);
738 spin_lock_init(&hdmi->audio_playing_lock);
739
740 r = hdmi5_probe_of(hdmi);
741 if (r)
742 goto err_free;
743
744 r = hdmi_wp_init(pdev, &hdmi->wp, 5);
745 if (r)
746 goto err_free;
747
748 r = hdmi_phy_init(pdev, &hdmi->phy, 5);
749 if (r)
750 goto err_free;
751
752 r = hdmi5_core_init(pdev, &hdmi->core);
753 if (r)
754 goto err_free;
755
756 irq = platform_get_irq(pdev, 0);
757 if (irq < 0) {
758 DSSERR("platform_get_irq failed\n");
759 r = -ENODEV;
760 goto err_free;
761 }
762
763 r = devm_request_threaded_irq(&pdev->dev, irq,
764 NULL, hdmi_irq_handler,
765 IRQF_ONESHOT, "OMAP HDMI", hdmi);
766 if (r) {
767 DSSERR("HDMI IRQ request failed\n");
768 goto err_free;
769 }
770
771 hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda");
772 if (IS_ERR(hdmi->vdda_reg)) {
773 r = PTR_ERR(hdmi->vdda_reg);
774 if (r != -EPROBE_DEFER)
775 DSSERR("can't get VDDA regulator\n");
776 goto err_free;
777 }
778
779 pm_runtime_enable(&pdev->dev);
780
781 r = hdmi5_init_output(hdmi);
782 if (r)
783 goto err_pm_disable;
784
785 r = component_add(&pdev->dev, &hdmi5_component_ops);
786 if (r)
787 goto err_uninit_output;
788
789 return 0;
790
791err_uninit_output:
792 hdmi5_uninit_output(hdmi);
793err_pm_disable:
794 pm_runtime_disable(&pdev->dev);
795err_free:
796 kfree(hdmi);
797 return r;
798}
799
800static int hdmi5_remove(struct platform_device *pdev)
801{
802 struct omap_hdmi *hdmi = platform_get_drvdata(pdev);
803
804 component_del(&pdev->dev, &hdmi5_component_ops);
805
806 hdmi5_uninit_output(hdmi);
807
808 pm_runtime_disable(&pdev->dev);
809
810 kfree(hdmi);
811 return 0;
812}
813
814static const struct of_device_id hdmi_of_match[] = {
815 { .compatible = "ti,omap5-hdmi", },
816 { .compatible = "ti,dra7-hdmi", },
817 {},
818};
819
820struct platform_driver omapdss_hdmi5hw_driver = {
821 .probe = hdmi5_probe,
822 .remove = hdmi5_remove,
823 .driver = {
824 .name = "omapdss_hdmi5",
825 .of_match_table = hdmi_of_match,
826 .suppress_bind_attrs = true,
827 },
828};