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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 int 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 return 0;
813}
814
815static const struct of_device_id hdmi_of_match[] = {
816 { .compatible = "ti,omap5-hdmi", },
817 { .compatible = "ti,dra7-hdmi", },
818 {},
819};
820
821struct platform_driver omapdss_hdmi5hw_driver = {
822 .probe = hdmi5_probe,
823 .remove = hdmi5_remove,
824 .driver = {
825 .name = "omapdss_hdmi5",
826 .of_match_table = hdmi_of_match,
827 .suppress_bind_attrs = true,
828 },
829};
1/*
2 * HDMI driver for OMAP5
3 *
4 * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
5 *
6 * Authors:
7 * Yong Zhi
8 * Mythri pk
9 * Archit Taneja <archit@ti.com>
10 * Tomi Valkeinen <tomi.valkeinen@ti.com>
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License version 2 as published by
14 * the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * more details.
20 *
21 * You should have received a copy of the GNU General Public License along with
22 * this program. If not, see <http://www.gnu.org/licenses/>.
23 */
24
25#define DSS_SUBSYS_NAME "HDMI"
26
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/err.h>
30#include <linux/io.h>
31#include <linux/interrupt.h>
32#include <linux/mutex.h>
33#include <linux/delay.h>
34#include <linux/string.h>
35#include <linux/platform_device.h>
36#include <linux/pm_runtime.h>
37#include <linux/clk.h>
38#include <linux/gpio.h>
39#include <linux/regulator/consumer.h>
40#include <linux/component.h>
41#include <linux/of.h>
42#include <linux/of_graph.h>
43#include <sound/omap-hdmi-audio.h>
44
45#include "omapdss.h"
46#include "hdmi5_core.h"
47#include "dss.h"
48
49static int hdmi_runtime_get(struct omap_hdmi *hdmi)
50{
51 int r;
52
53 DSSDBG("hdmi_runtime_get\n");
54
55 r = pm_runtime_get_sync(&hdmi->pdev->dev);
56 WARN_ON(r < 0);
57 if (r < 0)
58 return r;
59
60 return 0;
61}
62
63static void hdmi_runtime_put(struct omap_hdmi *hdmi)
64{
65 int r;
66
67 DSSDBG("hdmi_runtime_put\n");
68
69 r = pm_runtime_put_sync(&hdmi->pdev->dev);
70 WARN_ON(r < 0 && r != -ENOSYS);
71}
72
73static irqreturn_t hdmi_irq_handler(int irq, void *data)
74{
75 struct omap_hdmi *hdmi = data;
76 struct hdmi_wp_data *wp = &hdmi->wp;
77 u32 irqstatus;
78
79 irqstatus = hdmi_wp_get_irqstatus(wp);
80 hdmi_wp_set_irqstatus(wp, irqstatus);
81
82 if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
83 irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
84 u32 v;
85 /*
86 * If we get both connect and disconnect interrupts at the same
87 * time, turn off the PHY, clear interrupts, and restart, which
88 * raises connect interrupt if a cable is connected, or nothing
89 * if cable is not connected.
90 */
91
92 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
93
94 /*
95 * We always get bogus CONNECT & DISCONNECT interrupts when
96 * setting the PHY to LDOON. To ignore those, we force the RXDET
97 * line to 0 until the PHY power state has been changed.
98 */
99 v = hdmi_read_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL);
100 v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */
101 v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */
102 hdmi_write_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v);
103
104 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
105 HDMI_IRQ_LINK_DISCONNECT);
106
107 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
108
109 REG_FLD_MOD(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15);
110
111 } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
112 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
113 } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
114 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
115 }
116
117 return IRQ_HANDLED;
118}
119
120static int hdmi_init_regulator(struct omap_hdmi *hdmi)
121{
122 struct regulator *reg;
123
124 if (hdmi->vdda_reg != NULL)
125 return 0;
126
127 reg = devm_regulator_get(&hdmi->pdev->dev, "vdda");
128 if (IS_ERR(reg)) {
129 DSSERR("can't get VDDA regulator\n");
130 return PTR_ERR(reg);
131 }
132
133 hdmi->vdda_reg = reg;
134
135 return 0;
136}
137
138static int hdmi_power_on_core(struct omap_hdmi *hdmi)
139{
140 int r;
141
142 r = regulator_enable(hdmi->vdda_reg);
143 if (r)
144 return r;
145
146 r = hdmi_runtime_get(hdmi);
147 if (r)
148 goto err_runtime_get;
149
150 /* Make selection of HDMI in DSS */
151 dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK);
152
153 hdmi->core_enabled = true;
154
155 return 0;
156
157err_runtime_get:
158 regulator_disable(hdmi->vdda_reg);
159
160 return r;
161}
162
163static void hdmi_power_off_core(struct omap_hdmi *hdmi)
164{
165 hdmi->core_enabled = false;
166
167 hdmi_runtime_put(hdmi);
168 regulator_disable(hdmi->vdda_reg);
169}
170
171static int hdmi_power_on_full(struct omap_hdmi *hdmi)
172{
173 int r;
174 struct videomode *vm;
175 struct dss_pll_clock_info hdmi_cinfo = { 0 };
176 unsigned int pc;
177
178 r = hdmi_power_on_core(hdmi);
179 if (r)
180 return r;
181
182 vm = &hdmi->cfg.vm;
183
184 DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive,
185 vm->vactive);
186
187 pc = vm->pixelclock;
188 if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
189 pc *= 2;
190
191 /* DSS_HDMI_TCLK is bitclk / 10 */
192 pc *= 10;
193
194 dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin),
195 pc, &hdmi_cinfo);
196
197 /* disable and clear irqs */
198 hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
199 hdmi_wp_set_irqstatus(&hdmi->wp,
200 hdmi_wp_get_irqstatus(&hdmi->wp));
201
202 r = dss_pll_enable(&hdmi->pll.pll);
203 if (r) {
204 DSSERR("Failed to enable PLL\n");
205 goto err_pll_enable;
206 }
207
208 r = dss_pll_set_config(&hdmi->pll.pll, &hdmi_cinfo);
209 if (r) {
210 DSSERR("Failed to configure PLL\n");
211 goto err_pll_cfg;
212 }
213
214 r = hdmi_phy_configure(&hdmi->phy, hdmi_cinfo.clkdco,
215 hdmi_cinfo.clkout[0]);
216 if (r) {
217 DSSDBG("Failed to start PHY\n");
218 goto err_phy_cfg;
219 }
220
221 r = hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_LDOON);
222 if (r)
223 goto err_phy_pwr;
224
225 hdmi5_configure(&hdmi->core, &hdmi->wp, &hdmi->cfg);
226
227 /* tv size */
228 dss_mgr_set_timings(&hdmi->output, vm);
229
230 r = dss_mgr_enable(&hdmi->output);
231 if (r)
232 goto err_mgr_enable;
233
234 r = hdmi_wp_video_start(&hdmi->wp);
235 if (r)
236 goto err_vid_enable;
237
238 hdmi_wp_set_irqenable(&hdmi->wp,
239 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
240
241 return 0;
242
243err_vid_enable:
244 dss_mgr_disable(&hdmi->output);
245err_mgr_enable:
246 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
247err_phy_pwr:
248err_phy_cfg:
249err_pll_cfg:
250 dss_pll_disable(&hdmi->pll.pll);
251err_pll_enable:
252 hdmi_power_off_core(hdmi);
253 return -EIO;
254}
255
256static void hdmi_power_off_full(struct omap_hdmi *hdmi)
257{
258 hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
259
260 hdmi_wp_video_stop(&hdmi->wp);
261
262 dss_mgr_disable(&hdmi->output);
263
264 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
265
266 dss_pll_disable(&hdmi->pll.pll);
267
268 hdmi_power_off_core(hdmi);
269}
270
271static int hdmi_display_check_timing(struct omap_dss_device *dssdev,
272 struct videomode *vm)
273{
274 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
275
276 if (!dispc_mgr_timings_ok(hdmi->dss->dispc, dssdev->dispc_channel, vm))
277 return -EINVAL;
278
279 return 0;
280}
281
282static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
283 struct videomode *vm)
284{
285 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
286
287 mutex_lock(&hdmi->lock);
288
289 hdmi->cfg.vm = *vm;
290
291 dispc_set_tv_pclk(hdmi->dss->dispc, vm->pixelclock);
292
293 mutex_unlock(&hdmi->lock);
294}
295
296static void hdmi_display_get_timings(struct omap_dss_device *dssdev,
297 struct videomode *vm)
298{
299 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
300
301 *vm = hdmi->cfg.vm;
302}
303
304static int hdmi_dump_regs(struct seq_file *s, void *p)
305{
306 struct omap_hdmi *hdmi = s->private;
307
308 mutex_lock(&hdmi->lock);
309
310 if (hdmi_runtime_get(hdmi)) {
311 mutex_unlock(&hdmi->lock);
312 return 0;
313 }
314
315 hdmi_wp_dump(&hdmi->wp, s);
316 hdmi_pll_dump(&hdmi->pll, s);
317 hdmi_phy_dump(&hdmi->phy, s);
318 hdmi5_core_dump(&hdmi->core, s);
319
320 hdmi_runtime_put(hdmi);
321 mutex_unlock(&hdmi->lock);
322 return 0;
323}
324
325static int read_edid(struct omap_hdmi *hdmi, u8 *buf, int len)
326{
327 int r;
328 int idlemode;
329
330 mutex_lock(&hdmi->lock);
331
332 r = hdmi_runtime_get(hdmi);
333 BUG_ON(r);
334
335 idlemode = REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
336 /* No-idle mode */
337 REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
338
339 r = hdmi5_read_edid(&hdmi->core, buf, len);
340
341 REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2);
342
343 hdmi_runtime_put(hdmi);
344 mutex_unlock(&hdmi->lock);
345
346 return r;
347}
348
349static void hdmi_start_audio_stream(struct omap_hdmi *hd)
350{
351 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
352 hdmi_wp_audio_enable(&hd->wp, true);
353 hdmi_wp_audio_core_req_enable(&hd->wp, true);
354}
355
356static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
357{
358 hdmi_wp_audio_core_req_enable(&hd->wp, false);
359 hdmi_wp_audio_enable(&hd->wp, false);
360 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2);
361}
362
363static int hdmi_display_enable(struct omap_dss_device *dssdev)
364{
365 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
366 unsigned long flags;
367 int r = 0;
368
369 DSSDBG("ENTER hdmi_display_enable\n");
370
371 mutex_lock(&hdmi->lock);
372
373 if (!dssdev->dispc_channel_connected) {
374 DSSERR("failed to enable display: no output/manager\n");
375 r = -ENODEV;
376 goto err0;
377 }
378
379 r = hdmi_power_on_full(hdmi);
380 if (r) {
381 DSSERR("failed to power on device\n");
382 goto err0;
383 }
384
385 if (hdmi->audio_configured) {
386 r = hdmi5_audio_config(&hdmi->core, &hdmi->wp,
387 &hdmi->audio_config,
388 hdmi->cfg.vm.pixelclock);
389 if (r) {
390 DSSERR("Error restoring audio configuration: %d", r);
391 hdmi->audio_abort_cb(&hdmi->pdev->dev);
392 hdmi->audio_configured = false;
393 }
394 }
395
396 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
397 if (hdmi->audio_configured && hdmi->audio_playing)
398 hdmi_start_audio_stream(hdmi);
399 hdmi->display_enabled = true;
400 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
401
402 mutex_unlock(&hdmi->lock);
403 return 0;
404
405err0:
406 mutex_unlock(&hdmi->lock);
407 return r;
408}
409
410static void hdmi_display_disable(struct omap_dss_device *dssdev)
411{
412 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
413 unsigned long flags;
414
415 DSSDBG("Enter hdmi_display_disable\n");
416
417 mutex_lock(&hdmi->lock);
418
419 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
420 hdmi_stop_audio_stream(hdmi);
421 hdmi->display_enabled = false;
422 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
423
424 hdmi_power_off_full(hdmi);
425
426 mutex_unlock(&hdmi->lock);
427}
428
429static int hdmi_core_enable(struct omap_hdmi *hdmi)
430{
431 int r = 0;
432
433 DSSDBG("ENTER omapdss_hdmi_core_enable\n");
434
435 mutex_lock(&hdmi->lock);
436
437 r = hdmi_power_on_core(hdmi);
438 if (r) {
439 DSSERR("failed to power on device\n");
440 goto err0;
441 }
442
443 mutex_unlock(&hdmi->lock);
444 return 0;
445
446err0:
447 mutex_unlock(&hdmi->lock);
448 return r;
449}
450
451static void hdmi_core_disable(struct omap_hdmi *hdmi)
452{
453 DSSDBG("Enter omapdss_hdmi_core_disable\n");
454
455 mutex_lock(&hdmi->lock);
456
457 hdmi_power_off_core(hdmi);
458
459 mutex_unlock(&hdmi->lock);
460}
461
462static int hdmi_connect(struct omap_dss_device *dssdev,
463 struct omap_dss_device *dst)
464{
465 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
466 int r;
467
468 r = hdmi_init_regulator(hdmi);
469 if (r)
470 return r;
471
472 r = dss_mgr_connect(&hdmi->output, dssdev);
473 if (r)
474 return r;
475
476 r = omapdss_output_set_device(dssdev, dst);
477 if (r) {
478 DSSERR("failed to connect output to new device: %s\n",
479 dst->name);
480 dss_mgr_disconnect(&hdmi->output, dssdev);
481 return r;
482 }
483
484 return 0;
485}
486
487static void hdmi_disconnect(struct omap_dss_device *dssdev,
488 struct omap_dss_device *dst)
489{
490 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
491
492 WARN_ON(dst != dssdev->dst);
493
494 if (dst != dssdev->dst)
495 return;
496
497 omapdss_output_unset_device(dssdev);
498
499 dss_mgr_disconnect(&hdmi->output, dssdev);
500}
501
502static int hdmi_read_edid(struct omap_dss_device *dssdev,
503 u8 *edid, int len)
504{
505 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
506 bool need_enable;
507 int r;
508
509 need_enable = hdmi->core_enabled == false;
510
511 if (need_enable) {
512 r = hdmi_core_enable(hdmi);
513 if (r)
514 return r;
515 }
516
517 r = read_edid(hdmi, edid, len);
518
519 if (need_enable)
520 hdmi_core_disable(hdmi);
521
522 return r;
523}
524
525static int hdmi_set_infoframe(struct omap_dss_device *dssdev,
526 const struct hdmi_avi_infoframe *avi)
527{
528 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
529
530 hdmi->cfg.infoframe = *avi;
531 return 0;
532}
533
534static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev,
535 bool hdmi_mode)
536{
537 struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
538
539 hdmi->cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI;
540 return 0;
541}
542
543static const struct omapdss_hdmi_ops hdmi_ops = {
544 .connect = hdmi_connect,
545 .disconnect = hdmi_disconnect,
546
547 .enable = hdmi_display_enable,
548 .disable = hdmi_display_disable,
549
550 .check_timings = hdmi_display_check_timing,
551 .set_timings = hdmi_display_set_timing,
552 .get_timings = hdmi_display_get_timings,
553
554 .read_edid = hdmi_read_edid,
555 .set_infoframe = hdmi_set_infoframe,
556 .set_hdmi_mode = hdmi_set_hdmi_mode,
557};
558
559static void hdmi_init_output(struct omap_hdmi *hdmi)
560{
561 struct omap_dss_device *out = &hdmi->output;
562
563 out->dev = &hdmi->pdev->dev;
564 out->id = OMAP_DSS_OUTPUT_HDMI;
565 out->output_type = OMAP_DISPLAY_TYPE_HDMI;
566 out->name = "hdmi.0";
567 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
568 out->ops.hdmi = &hdmi_ops;
569 out->owner = THIS_MODULE;
570
571 omapdss_register_output(out);
572}
573
574static void hdmi_uninit_output(struct omap_hdmi *hdmi)
575{
576 struct omap_dss_device *out = &hdmi->output;
577
578 omapdss_unregister_output(out);
579}
580
581static int hdmi_probe_of(struct omap_hdmi *hdmi)
582{
583 struct platform_device *pdev = hdmi->pdev;
584 struct device_node *node = pdev->dev.of_node;
585 struct device_node *ep;
586 int r;
587
588 ep = of_graph_get_endpoint_by_regs(node, 0, 0);
589 if (!ep)
590 return 0;
591
592 r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy);
593 if (r)
594 goto err;
595
596 of_node_put(ep);
597 return 0;
598
599err:
600 of_node_put(ep);
601 return r;
602}
603
604/* Audio callbacks */
605static int hdmi_audio_startup(struct device *dev,
606 void (*abort_cb)(struct device *dev))
607{
608 struct omap_hdmi *hd = dev_get_drvdata(dev);
609
610 mutex_lock(&hd->lock);
611
612 WARN_ON(hd->audio_abort_cb != NULL);
613
614 hd->audio_abort_cb = abort_cb;
615
616 mutex_unlock(&hd->lock);
617
618 return 0;
619}
620
621static int hdmi_audio_shutdown(struct device *dev)
622{
623 struct omap_hdmi *hd = dev_get_drvdata(dev);
624
625 mutex_lock(&hd->lock);
626 hd->audio_abort_cb = NULL;
627 hd->audio_configured = false;
628 hd->audio_playing = false;
629 mutex_unlock(&hd->lock);
630
631 return 0;
632}
633
634static int hdmi_audio_start(struct device *dev)
635{
636 struct omap_hdmi *hd = dev_get_drvdata(dev);
637 unsigned long flags;
638
639 spin_lock_irqsave(&hd->audio_playing_lock, flags);
640
641 if (hd->display_enabled) {
642 if (!hdmi_mode_has_audio(&hd->cfg))
643 DSSERR("%s: Video mode does not support audio\n",
644 __func__);
645 hdmi_start_audio_stream(hd);
646 }
647 hd->audio_playing = true;
648
649 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
650 return 0;
651}
652
653static void hdmi_audio_stop(struct device *dev)
654{
655 struct omap_hdmi *hd = dev_get_drvdata(dev);
656 unsigned long flags;
657
658 if (!hdmi_mode_has_audio(&hd->cfg))
659 DSSERR("%s: Video mode does not support audio\n", __func__);
660
661 spin_lock_irqsave(&hd->audio_playing_lock, flags);
662
663 if (hd->display_enabled)
664 hdmi_stop_audio_stream(hd);
665 hd->audio_playing = false;
666
667 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
668}
669
670static int hdmi_audio_config(struct device *dev,
671 struct omap_dss_audio *dss_audio)
672{
673 struct omap_hdmi *hd = dev_get_drvdata(dev);
674 int ret = 0;
675
676 mutex_lock(&hd->lock);
677
678 if (hd->display_enabled) {
679 ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
680 hd->cfg.vm.pixelclock);
681 if (ret)
682 goto out;
683 }
684
685 hd->audio_configured = true;
686 hd->audio_config = *dss_audio;
687out:
688 mutex_unlock(&hd->lock);
689
690 return ret;
691}
692
693static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
694 .audio_startup = hdmi_audio_startup,
695 .audio_shutdown = hdmi_audio_shutdown,
696 .audio_start = hdmi_audio_start,
697 .audio_stop = hdmi_audio_stop,
698 .audio_config = hdmi_audio_config,
699};
700
701static int hdmi_audio_register(struct omap_hdmi *hdmi)
702{
703 struct omap_hdmi_audio_pdata pdata = {
704 .dev = &hdmi->pdev->dev,
705 .version = 5,
706 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi->wp),
707 .ops = &hdmi_audio_ops,
708 };
709
710 hdmi->audio_pdev = platform_device_register_data(
711 &hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
712 &pdata, sizeof(pdata));
713
714 if (IS_ERR(hdmi->audio_pdev))
715 return PTR_ERR(hdmi->audio_pdev);
716
717 hdmi_runtime_get(hdmi);
718 hdmi->wp_idlemode =
719 REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
720 hdmi_runtime_put(hdmi);
721
722 return 0;
723}
724
725/* HDMI HW IP initialisation */
726static int hdmi5_bind(struct device *dev, struct device *master, void *data)
727{
728 struct platform_device *pdev = to_platform_device(dev);
729 struct dss_device *dss = dss_get_device(master);
730 struct omap_hdmi *hdmi;
731 int r;
732 int irq;
733
734 hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
735 if (!hdmi)
736 return -ENOMEM;
737
738 hdmi->pdev = pdev;
739 hdmi->dss = dss;
740 dev_set_drvdata(&pdev->dev, hdmi);
741
742 mutex_init(&hdmi->lock);
743 spin_lock_init(&hdmi->audio_playing_lock);
744
745 r = hdmi_probe_of(hdmi);
746 if (r)
747 goto err_free;
748
749 r = hdmi_wp_init(pdev, &hdmi->wp, 5);
750 if (r)
751 goto err_free;
752
753 r = hdmi_pll_init(dss, pdev, &hdmi->pll, &hdmi->wp);
754 if (r)
755 goto err_free;
756
757 r = hdmi_phy_init(pdev, &hdmi->phy, 5);
758 if (r)
759 goto err_pll;
760
761 r = hdmi5_core_init(pdev, &hdmi->core);
762 if (r)
763 goto err_pll;
764
765 irq = platform_get_irq(pdev, 0);
766 if (irq < 0) {
767 DSSERR("platform_get_irq failed\n");
768 r = -ENODEV;
769 goto err_pll;
770 }
771
772 r = devm_request_threaded_irq(&pdev->dev, irq,
773 NULL, hdmi_irq_handler,
774 IRQF_ONESHOT, "OMAP HDMI", hdmi);
775 if (r) {
776 DSSERR("HDMI IRQ request failed\n");
777 goto err_pll;
778 }
779
780 pm_runtime_enable(&pdev->dev);
781
782 hdmi_init_output(hdmi);
783
784 r = hdmi_audio_register(hdmi);
785 if (r) {
786 DSSERR("Registering HDMI audio failed %d\n", r);
787 hdmi_uninit_output(hdmi);
788 pm_runtime_disable(&pdev->dev);
789 return r;
790 }
791
792 hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
793 hdmi);
794
795 return 0;
796
797err_pll:
798 hdmi_pll_uninit(&hdmi->pll);
799err_free:
800 kfree(hdmi);
801 return r;
802}
803
804static void hdmi5_unbind(struct device *dev, struct device *master, void *data)
805{
806 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
807
808 dss_debugfs_remove_file(hdmi->debugfs);
809
810 if (hdmi->audio_pdev)
811 platform_device_unregister(hdmi->audio_pdev);
812
813 hdmi_uninit_output(hdmi);
814
815 hdmi_pll_uninit(&hdmi->pll);
816
817 pm_runtime_disable(dev);
818
819 kfree(hdmi);
820}
821
822static const struct component_ops hdmi5_component_ops = {
823 .bind = hdmi5_bind,
824 .unbind = hdmi5_unbind,
825};
826
827static int hdmi5_probe(struct platform_device *pdev)
828{
829 return component_add(&pdev->dev, &hdmi5_component_ops);
830}
831
832static int hdmi5_remove(struct platform_device *pdev)
833{
834 component_del(&pdev->dev, &hdmi5_component_ops);
835 return 0;
836}
837
838static int hdmi_runtime_suspend(struct device *dev)
839{
840 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
841
842 dispc_runtime_put(hdmi->dss->dispc);
843
844 return 0;
845}
846
847static int hdmi_runtime_resume(struct device *dev)
848{
849 struct omap_hdmi *hdmi = dev_get_drvdata(dev);
850 int r;
851
852 r = dispc_runtime_get(hdmi->dss->dispc);
853 if (r < 0)
854 return r;
855
856 return 0;
857}
858
859static const struct dev_pm_ops hdmi_pm_ops = {
860 .runtime_suspend = hdmi_runtime_suspend,
861 .runtime_resume = hdmi_runtime_resume,
862};
863
864static const struct of_device_id hdmi_of_match[] = {
865 { .compatible = "ti,omap5-hdmi", },
866 { .compatible = "ti,dra7-hdmi", },
867 {},
868};
869
870struct platform_driver omapdss_hdmi5hw_driver = {
871 .probe = hdmi5_probe,
872 .remove = hdmi5_remove,
873 .driver = {
874 .name = "omapdss_hdmi5",
875 .pm = &hdmi_pm_ops,
876 .of_match_table = hdmi_of_match,
877 .suppress_bind_attrs = true,
878 },
879};