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(dev: &hdmi->pdev->dev);
48 if (WARN_ON(r < 0)) {
49 pm_runtime_put_noidle(dev: &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(dev: &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, val: 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(base_addr: 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(base_addr: hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, val: 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, val: 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, val: HDMI_PHYPWRCMD_TXON);
105 } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
106 hdmi_wp_set_phy_pwr(wp, val: 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(regulator: 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(dss: hdmi->dss, src: DSS_HDMI_M_PCLK);
126
127 hdmi->core_enabled = true;
128
129 return 0;
130
131err_runtime_get:
132 regulator_disable(regulator: 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(regulator: 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(pll: &hdmi->pll.pll, clkin: clk_get_rate(clk: hdmi->pll.pll.clkin),
169 target_clkout: pc, cinfo: &hdmi_cinfo);
170
171 /* disable and clear irqs */
172 hdmi_wp_clear_irqenable(wp: &hdmi->wp, mask: 0xffffffff);
173 hdmi_wp_set_irqstatus(wp: &hdmi->wp,
174 irqstatus: hdmi_wp_get_irqstatus(wp: &hdmi->wp));
175
176 r = dss_pll_enable(pll: &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(pll: &hdmi->pll.pll, cinfo: &hdmi_cinfo);
183 if (r) {
184 DSSERR("Failed to configure PLL\n");
185 goto err_pll_cfg;
186 }
187
188 r = hdmi_phy_configure(phy: &hdmi->phy, hfbitclk: hdmi_cinfo.clkdco,
189 lfbitclk: 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(wp: &hdmi->wp, val: HDMI_PHYPWRCMD_LDOON);
196 if (r)
197 goto err_phy_pwr;
198
199 hdmi5_configure(core: &hdmi->core, wp: &hdmi->wp, cfg: &hdmi->cfg);
200
201 r = dss_mgr_enable(dssdev: &hdmi->output);
202 if (r)
203 goto err_mgr_enable;
204
205 r = hdmi_wp_video_start(wp: &hdmi->wp);
206 if (r)
207 goto err_vid_enable;
208
209 hdmi_wp_set_irqenable(wp: &hdmi->wp,
210 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
211
212 return 0;
213
214err_vid_enable:
215 dss_mgr_disable(dssdev: &hdmi->output);
216err_mgr_enable:
217 hdmi_wp_set_phy_pwr(wp: &hdmi->wp, val: HDMI_PHYPWRCMD_OFF);
218err_phy_pwr:
219err_phy_cfg:
220err_pll_cfg:
221 dss_pll_disable(pll: &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(wp: &hdmi->wp, mask: 0xffffffff);
230
231 hdmi_wp_video_stop(wp: &hdmi->wp);
232
233 dss_mgr_disable(dssdev: &hdmi->output);
234
235 hdmi_wp_set_phy_pwr(wp: &hdmi->wp, val: HDMI_PHYPWRCMD_OFF);
236
237 dss_pll_disable(pll: &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(lock: &hdmi->lock);
250 return 0;
251 }
252
253 hdmi_wp_dump(wp: &hdmi->wp, s);
254 hdmi_pll_dump(pll: &hdmi->pll, s);
255 hdmi_phy_dump(phy: &hdmi->phy, s);
256 hdmi5_core_dump(core: &hdmi->core, s);
257
258 hdmi_runtime_put(hdmi);
259 mutex_unlock(lock: &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(wp: &hd->wp, enable: true);
267 hdmi_wp_audio_core_req_enable(wp: &hd->wp, enable: true);
268}
269
270static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
271{
272 hdmi_wp_audio_core_req_enable(wp: &hd->wp, enable: false);
273 hdmi_wp_audio_enable(wp: &hd->wp, enable: 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(lock: &hdmi->lock);
292 return 0;
293
294err0:
295 mutex_unlock(lock: &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(lock: &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(encoder: bridge->encoder, bridge: hdmi->output.next_bridge,
323 previous: 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(dmode: adjusted_mode, vm: &hdmi->cfg.vm);
335
336 dispc_set_tv_pclk(dispc: hdmi->dss->dispc, pclk: adjusted_mode->clock * 1000);
337
338 mutex_unlock(lock: &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 encoder: 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, crtc: 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(frame: &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(core: &hdmi->core, wp: &hdmi->wp,
391 audio: &hdmi->audio_config,
392 pclk: 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(hd: hdmi);
403 hdmi->display_enabled = true;
404 spin_unlock_irqrestore(lock: &hdmi->audio_playing_lock, flags);
405
406done:
407 mutex_unlock(lock: &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(hd: hdmi);
420 hdmi->display_enabled = false;
421 spin_unlock_irqrestore(lock: &hdmi->audio_playing_lock, flags);
422
423 hdmi_power_off_full(hdmi);
424
425 mutex_unlock(lock: &hdmi->lock);
426}
427
428static const struct drm_edid *hdmi5_bridge_edid_read(struct drm_bridge *bridge,
429 struct drm_connector *connector)
430{
431 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
432 const struct drm_edid *drm_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(core: &hdmi->core);
454
455 drm_edid = drm_edid_read_custom(connector, read_block: hdmi5_core_ddc_read, context: &hdmi->core);
456
457 hdmi5_core_ddc_uninit(core: &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(lock: &hdmi->lock);
463
464 if (need_enable)
465 hdmi_core_disable(hdmi);
466
467 return drm_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 .edid_read = hdmi5_bridge_edid_read,
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(bridge: &hdmi->bridge);
489}
490
491static void hdmi5_bridge_cleanup(struct omap_hdmi *hdmi)
492{
493 drm_bridge_remove(bridge: &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(lock: &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(lock: &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(cfg: &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(lock: &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(cfg: &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(lock: &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(core: &hd->core, wp: &hd->wp, audio: dss_audio,
575 pclk: 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(lock: &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(wp: &hdmi->wp),
602 .ops = &hdmi_audio_ops,
603 };
604
605 hdmi->audio_pdev = platform_device_register_data(
606 parent: &hdmi->pdev->dev, name: "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
607 data: &pdata, size: sizeof(pdata));
608
609 if (IS_ERR(ptr: hdmi->audio_pdev))
610 return PTR_ERR(ptr: 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(dev: 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, pdev: hdmi->pdev, pll: &hdmi->pll, wp: &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, name: "hdmi", show_fn: hdmi_dump_regs,
643 data: hdmi);
644
645 return 0;
646
647err_pll_uninit:
648 hdmi_pll_uninit(hpll: &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(entry: hdmi->debugfs);
657
658 if (hdmi->audio_pdev)
659 platform_device_unregister(hdmi->audio_pdev);
660
661 hdmi_pll_uninit(hpll: &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, local_bridge: &hdmi->bridge);
688 if (r < 0) {
689 hdmi5_bridge_cleanup(hdmi);
690 return r;
691 }
692
693 omapdss_device_register(dssdev: 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(dssdev: 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(parent: node, port_reg: 0, reg: 0);
716 if (!ep)
717 return 0;
718
719 r = hdmi_parse_lanes_of(pdev, ep, phy: &hdmi->phy);
720 of_node_put(node: 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(size: sizeof(*hdmi), GFP_KERNEL);
731 if (!hdmi)
732 return -ENOMEM;
733
734 hdmi->pdev = pdev;
735
736 dev_set_drvdata(dev: &pdev->dev, data: 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, wp: &hdmi->wp, version: 5);
746 if (r)
747 goto err_free;
748
749 r = hdmi_phy_init(pdev, phy: &hdmi->phy, version: 5);
750 if (r)
751 goto err_free;
752
753 r = hdmi5_core_init(pdev, core: &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(dev: &pdev->dev, irq,
765 NULL, thread_fn: hdmi_irq_handler,
766 IRQF_ONESHOT, devname: "OMAP HDMI", dev_id: hdmi);
767 if (r) {
768 DSSERR("HDMI IRQ request failed\n");
769 goto err_free;
770 }
771
772 hdmi->vdda_reg = devm_regulator_get(dev: &pdev->dev, id: "vdda");
773 if (IS_ERR(ptr: hdmi->vdda_reg)) {
774 r = PTR_ERR(ptr: 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(dev: &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(dev: &pdev->dev);
796err_free:
797 kfree(objp: 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(dev: &pdev->dev);
810
811 kfree(objp: 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};
829

source code of linux/drivers/gpu/drm/omapdrm/dss/hdmi5.c