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f76ee892 TV |
1 | /* |
2 | * HDMI driver for OMAP5 | |
3 | * | |
4 | * Copyright (C) 2014 Texas Instruments Incorporated | |
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> | |
62d9e44e | 41 | #include <video/omapfb_dss.h> |
f76ee892 TV |
42 | #include <sound/omap-hdmi-audio.h> |
43 | ||
44 | #include "hdmi5_core.h" | |
45 | #include "dss.h" | |
46 | #include "dss_features.h" | |
47 | ||
48 | static struct omap_hdmi hdmi; | |
49 | ||
50 | static int hdmi_runtime_get(void) | |
51 | { | |
52 | int r; | |
53 | ||
54 | DSSDBG("hdmi_runtime_get\n"); | |
55 | ||
56 | r = pm_runtime_get_sync(&hdmi.pdev->dev); | |
57 | WARN_ON(r < 0); | |
58 | if (r < 0) | |
59 | return r; | |
60 | ||
61 | return 0; | |
62 | } | |
63 | ||
64 | static void hdmi_runtime_put(void) | |
65 | { | |
66 | int r; | |
67 | ||
68 | DSSDBG("hdmi_runtime_put\n"); | |
69 | ||
70 | r = pm_runtime_put_sync(&hdmi.pdev->dev); | |
71 | WARN_ON(r < 0 && r != -ENOSYS); | |
72 | } | |
73 | ||
74 | static irqreturn_t hdmi_irq_handler(int irq, void *data) | |
75 | { | |
76 | struct hdmi_wp_data *wp = data; | |
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 | ||
120 | static int hdmi_init_regulator(void) | |
121 | { | |
f76ee892 TV |
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 | ||
f76ee892 TV |
133 | hdmi.vdda_reg = reg; |
134 | ||
135 | return 0; | |
136 | } | |
137 | ||
138 | static int hdmi_power_on_core(struct omap_dss_device *dssdev) | |
139 | { | |
140 | int r; | |
141 | ||
142 | r = regulator_enable(hdmi.vdda_reg); | |
143 | if (r) | |
144 | return r; | |
145 | ||
146 | r = hdmi_runtime_get(); | |
147 | if (r) | |
148 | goto err_runtime_get; | |
149 | ||
150 | /* Make selection of HDMI in DSS */ | |
151 | dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK); | |
152 | ||
153 | hdmi.core_enabled = true; | |
154 | ||
155 | return 0; | |
156 | ||
157 | err_runtime_get: | |
158 | regulator_disable(hdmi.vdda_reg); | |
159 | ||
160 | return r; | |
161 | } | |
162 | ||
163 | static void hdmi_power_off_core(struct omap_dss_device *dssdev) | |
164 | { | |
165 | hdmi.core_enabled = false; | |
166 | ||
167 | hdmi_runtime_put(); | |
168 | regulator_disable(hdmi.vdda_reg); | |
169 | } | |
170 | ||
171 | static int hdmi_power_on_full(struct omap_dss_device *dssdev) | |
172 | { | |
173 | int r; | |
174 | struct omap_video_timings *p; | |
175 | struct omap_overlay_manager *mgr = hdmi.output.manager; | |
176 | struct dss_pll_clock_info hdmi_cinfo = { 0 }; | |
177 | ||
178 | r = hdmi_power_on_core(dssdev); | |
179 | if (r) | |
180 | return r; | |
181 | ||
182 | p = &hdmi.cfg.timings; | |
183 | ||
184 | DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res); | |
185 | ||
186 | hdmi_pll_compute(&hdmi.pll, p->pixelclock, &hdmi_cinfo); | |
187 | ||
188 | /* disable and clear irqs */ | |
189 | hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); | |
190 | hdmi_wp_set_irqstatus(&hdmi.wp, | |
191 | hdmi_wp_get_irqstatus(&hdmi.wp)); | |
192 | ||
193 | r = dss_pll_enable(&hdmi.pll.pll); | |
194 | if (r) { | |
195 | DSSERR("Failed to enable PLL\n"); | |
196 | goto err_pll_enable; | |
197 | } | |
198 | ||
199 | r = dss_pll_set_config(&hdmi.pll.pll, &hdmi_cinfo); | |
200 | if (r) { | |
201 | DSSERR("Failed to configure PLL\n"); | |
202 | goto err_pll_cfg; | |
203 | } | |
204 | ||
205 | r = hdmi_phy_configure(&hdmi.phy, hdmi_cinfo.clkdco, | |
206 | hdmi_cinfo.clkout[0]); | |
207 | if (r) { | |
208 | DSSDBG("Failed to start PHY\n"); | |
209 | goto err_phy_cfg; | |
210 | } | |
211 | ||
212 | r = hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_LDOON); | |
213 | if (r) | |
214 | goto err_phy_pwr; | |
215 | ||
216 | hdmi5_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg); | |
217 | ||
218 | /* bypass TV gamma table */ | |
219 | dispc_enable_gamma_table(0); | |
220 | ||
221 | /* tv size */ | |
222 | dss_mgr_set_timings(mgr, p); | |
223 | ||
224 | r = hdmi_wp_video_start(&hdmi.wp); | |
225 | if (r) | |
226 | goto err_vid_enable; | |
227 | ||
228 | r = dss_mgr_enable(mgr); | |
229 | if (r) | |
230 | goto err_mgr_enable; | |
231 | ||
232 | hdmi_wp_set_irqenable(&hdmi.wp, | |
233 | HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT); | |
234 | ||
235 | return 0; | |
236 | ||
237 | err_mgr_enable: | |
238 | hdmi_wp_video_stop(&hdmi.wp); | |
239 | err_vid_enable: | |
240 | hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF); | |
241 | err_phy_pwr: | |
242 | err_phy_cfg: | |
243 | err_pll_cfg: | |
244 | dss_pll_disable(&hdmi.pll.pll); | |
245 | err_pll_enable: | |
246 | hdmi_power_off_core(dssdev); | |
247 | return -EIO; | |
248 | } | |
249 | ||
250 | static void hdmi_power_off_full(struct omap_dss_device *dssdev) | |
251 | { | |
252 | struct omap_overlay_manager *mgr = hdmi.output.manager; | |
253 | ||
254 | hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); | |
255 | ||
256 | dss_mgr_disable(mgr); | |
257 | ||
258 | hdmi_wp_video_stop(&hdmi.wp); | |
259 | ||
260 | hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF); | |
261 | ||
262 | dss_pll_disable(&hdmi.pll.pll); | |
263 | ||
264 | hdmi_power_off_core(dssdev); | |
265 | } | |
266 | ||
267 | static int hdmi_display_check_timing(struct omap_dss_device *dssdev, | |
268 | struct omap_video_timings *timings) | |
269 | { | |
270 | struct omap_dss_device *out = &hdmi.output; | |
271 | ||
272 | /* TODO: proper interlace support */ | |
273 | if (timings->interlace) | |
274 | return -EINVAL; | |
275 | ||
276 | if (!dispc_mgr_timings_ok(out->dispc_channel, timings)) | |
277 | return -EINVAL; | |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
282 | static void hdmi_display_set_timing(struct omap_dss_device *dssdev, | |
283 | struct omap_video_timings *timings) | |
284 | { | |
285 | mutex_lock(&hdmi.lock); | |
286 | ||
287 | hdmi.cfg.timings = *timings; | |
288 | ||
289 | dispc_set_tv_pclk(timings->pixelclock); | |
290 | ||
291 | mutex_unlock(&hdmi.lock); | |
292 | } | |
293 | ||
294 | static void hdmi_display_get_timings(struct omap_dss_device *dssdev, | |
295 | struct omap_video_timings *timings) | |
296 | { | |
297 | *timings = hdmi.cfg.timings; | |
298 | } | |
299 | ||
300 | static void hdmi_dump_regs(struct seq_file *s) | |
301 | { | |
302 | mutex_lock(&hdmi.lock); | |
303 | ||
304 | if (hdmi_runtime_get()) { | |
305 | mutex_unlock(&hdmi.lock); | |
306 | return; | |
307 | } | |
308 | ||
309 | hdmi_wp_dump(&hdmi.wp, s); | |
310 | hdmi_pll_dump(&hdmi.pll, s); | |
311 | hdmi_phy_dump(&hdmi.phy, s); | |
312 | hdmi5_core_dump(&hdmi.core, s); | |
313 | ||
314 | hdmi_runtime_put(); | |
315 | mutex_unlock(&hdmi.lock); | |
316 | } | |
317 | ||
318 | static int read_edid(u8 *buf, int len) | |
319 | { | |
320 | int r; | |
321 | int idlemode; | |
322 | ||
323 | mutex_lock(&hdmi.lock); | |
324 | ||
325 | r = hdmi_runtime_get(); | |
326 | BUG_ON(r); | |
327 | ||
328 | idlemode = REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2); | |
329 | /* No-idle mode */ | |
330 | REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2); | |
331 | ||
332 | r = hdmi5_read_edid(&hdmi.core, buf, len); | |
333 | ||
334 | REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2); | |
335 | ||
336 | hdmi_runtime_put(); | |
337 | mutex_unlock(&hdmi.lock); | |
338 | ||
339 | return r; | |
340 | } | |
341 | ||
342 | static void hdmi_start_audio_stream(struct omap_hdmi *hd) | |
343 | { | |
344 | REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2); | |
345 | hdmi_wp_audio_enable(&hd->wp, true); | |
346 | hdmi_wp_audio_core_req_enable(&hd->wp, true); | |
347 | } | |
348 | ||
349 | static void hdmi_stop_audio_stream(struct omap_hdmi *hd) | |
350 | { | |
351 | hdmi_wp_audio_core_req_enable(&hd->wp, false); | |
352 | hdmi_wp_audio_enable(&hd->wp, false); | |
353 | REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2); | |
354 | } | |
355 | ||
356 | static int hdmi_display_enable(struct omap_dss_device *dssdev) | |
357 | { | |
358 | struct omap_dss_device *out = &hdmi.output; | |
359 | unsigned long flags; | |
360 | int r = 0; | |
361 | ||
362 | DSSDBG("ENTER hdmi_display_enable\n"); | |
363 | ||
364 | mutex_lock(&hdmi.lock); | |
365 | ||
366 | if (out->manager == NULL) { | |
367 | DSSERR("failed to enable display: no output/manager\n"); | |
368 | r = -ENODEV; | |
369 | goto err0; | |
370 | } | |
371 | ||
372 | r = hdmi_power_on_full(dssdev); | |
373 | if (r) { | |
374 | DSSERR("failed to power on device\n"); | |
375 | goto err0; | |
376 | } | |
377 | ||
378 | if (hdmi.audio_configured) { | |
379 | r = hdmi5_audio_config(&hdmi.core, &hdmi.wp, &hdmi.audio_config, | |
380 | hdmi.cfg.timings.pixelclock); | |
381 | if (r) { | |
382 | DSSERR("Error restoring audio configuration: %d", r); | |
383 | hdmi.audio_abort_cb(&hdmi.pdev->dev); | |
384 | hdmi.audio_configured = false; | |
385 | } | |
386 | } | |
387 | ||
388 | spin_lock_irqsave(&hdmi.audio_playing_lock, flags); | |
389 | if (hdmi.audio_configured && hdmi.audio_playing) | |
390 | hdmi_start_audio_stream(&hdmi); | |
391 | hdmi.display_enabled = true; | |
392 | spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags); | |
393 | ||
394 | mutex_unlock(&hdmi.lock); | |
395 | return 0; | |
396 | ||
397 | err0: | |
398 | mutex_unlock(&hdmi.lock); | |
399 | return r; | |
400 | } | |
401 | ||
402 | static void hdmi_display_disable(struct omap_dss_device *dssdev) | |
403 | { | |
404 | unsigned long flags; | |
405 | ||
406 | DSSDBG("Enter hdmi_display_disable\n"); | |
407 | ||
408 | mutex_lock(&hdmi.lock); | |
409 | ||
410 | spin_lock_irqsave(&hdmi.audio_playing_lock, flags); | |
411 | hdmi_stop_audio_stream(&hdmi); | |
412 | hdmi.display_enabled = false; | |
413 | spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags); | |
414 | ||
415 | hdmi_power_off_full(dssdev); | |
416 | ||
417 | mutex_unlock(&hdmi.lock); | |
418 | } | |
419 | ||
420 | static int hdmi_core_enable(struct omap_dss_device *dssdev) | |
421 | { | |
422 | int r = 0; | |
423 | ||
424 | DSSDBG("ENTER omapdss_hdmi_core_enable\n"); | |
425 | ||
426 | mutex_lock(&hdmi.lock); | |
427 | ||
428 | r = hdmi_power_on_core(dssdev); | |
429 | if (r) { | |
430 | DSSERR("failed to power on device\n"); | |
431 | goto err0; | |
432 | } | |
433 | ||
434 | mutex_unlock(&hdmi.lock); | |
435 | return 0; | |
436 | ||
437 | err0: | |
438 | mutex_unlock(&hdmi.lock); | |
439 | return r; | |
440 | } | |
441 | ||
442 | static void hdmi_core_disable(struct omap_dss_device *dssdev) | |
443 | { | |
444 | DSSDBG("Enter omapdss_hdmi_core_disable\n"); | |
445 | ||
446 | mutex_lock(&hdmi.lock); | |
447 | ||
448 | hdmi_power_off_core(dssdev); | |
449 | ||
450 | mutex_unlock(&hdmi.lock); | |
451 | } | |
452 | ||
453 | static int hdmi_connect(struct omap_dss_device *dssdev, | |
454 | struct omap_dss_device *dst) | |
455 | { | |
456 | struct omap_overlay_manager *mgr; | |
457 | int r; | |
458 | ||
459 | r = hdmi_init_regulator(); | |
460 | if (r) | |
461 | return r; | |
462 | ||
463 | mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel); | |
464 | if (!mgr) | |
465 | return -ENODEV; | |
466 | ||
467 | r = dss_mgr_connect(mgr, dssdev); | |
468 | if (r) | |
469 | return r; | |
470 | ||
471 | r = omapdss_output_set_device(dssdev, dst); | |
472 | if (r) { | |
473 | DSSERR("failed to connect output to new device: %s\n", | |
474 | dst->name); | |
475 | dss_mgr_disconnect(mgr, dssdev); | |
476 | return r; | |
477 | } | |
478 | ||
479 | return 0; | |
480 | } | |
481 | ||
482 | static void hdmi_disconnect(struct omap_dss_device *dssdev, | |
483 | struct omap_dss_device *dst) | |
484 | { | |
485 | WARN_ON(dst != dssdev->dst); | |
486 | ||
487 | if (dst != dssdev->dst) | |
488 | return; | |
489 | ||
490 | omapdss_output_unset_device(dssdev); | |
491 | ||
492 | if (dssdev->manager) | |
493 | dss_mgr_disconnect(dssdev->manager, dssdev); | |
494 | } | |
495 | ||
496 | static int hdmi_read_edid(struct omap_dss_device *dssdev, | |
497 | u8 *edid, int len) | |
498 | { | |
499 | bool need_enable; | |
500 | int r; | |
501 | ||
502 | need_enable = hdmi.core_enabled == false; | |
503 | ||
504 | if (need_enable) { | |
505 | r = hdmi_core_enable(dssdev); | |
506 | if (r) | |
507 | return r; | |
508 | } | |
509 | ||
510 | r = read_edid(edid, len); | |
511 | ||
512 | if (need_enable) | |
513 | hdmi_core_disable(dssdev); | |
514 | ||
515 | return r; | |
516 | } | |
517 | ||
518 | static int hdmi_set_infoframe(struct omap_dss_device *dssdev, | |
519 | const struct hdmi_avi_infoframe *avi) | |
520 | { | |
521 | hdmi.cfg.infoframe = *avi; | |
522 | return 0; | |
523 | } | |
524 | ||
525 | static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev, | |
526 | bool hdmi_mode) | |
527 | { | |
528 | hdmi.cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI; | |
529 | return 0; | |
530 | } | |
531 | ||
532 | static const struct omapdss_hdmi_ops hdmi_ops = { | |
533 | .connect = hdmi_connect, | |
534 | .disconnect = hdmi_disconnect, | |
535 | ||
536 | .enable = hdmi_display_enable, | |
537 | .disable = hdmi_display_disable, | |
538 | ||
539 | .check_timings = hdmi_display_check_timing, | |
540 | .set_timings = hdmi_display_set_timing, | |
541 | .get_timings = hdmi_display_get_timings, | |
542 | ||
543 | .read_edid = hdmi_read_edid, | |
544 | .set_infoframe = hdmi_set_infoframe, | |
545 | .set_hdmi_mode = hdmi_set_hdmi_mode, | |
546 | }; | |
547 | ||
548 | static void hdmi_init_output(struct platform_device *pdev) | |
549 | { | |
550 | struct omap_dss_device *out = &hdmi.output; | |
551 | ||
552 | out->dev = &pdev->dev; | |
553 | out->id = OMAP_DSS_OUTPUT_HDMI; | |
554 | out->output_type = OMAP_DISPLAY_TYPE_HDMI; | |
555 | out->name = "hdmi.0"; | |
556 | out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; | |
557 | out->ops.hdmi = &hdmi_ops; | |
558 | out->owner = THIS_MODULE; | |
559 | ||
560 | omapdss_register_output(out); | |
561 | } | |
562 | ||
563 | static void hdmi_uninit_output(struct platform_device *pdev) | |
564 | { | |
565 | struct omap_dss_device *out = &hdmi.output; | |
566 | ||
567 | omapdss_unregister_output(out); | |
568 | } | |
569 | ||
570 | static int hdmi_probe_of(struct platform_device *pdev) | |
571 | { | |
572 | struct device_node *node = pdev->dev.of_node; | |
573 | struct device_node *ep; | |
574 | int r; | |
575 | ||
576 | ep = omapdss_of_get_first_endpoint(node); | |
577 | if (!ep) | |
578 | return 0; | |
579 | ||
580 | r = hdmi_parse_lanes_of(pdev, ep, &hdmi.phy); | |
581 | if (r) | |
582 | goto err; | |
583 | ||
584 | of_node_put(ep); | |
585 | return 0; | |
586 | ||
587 | err: | |
588 | of_node_put(ep); | |
589 | return r; | |
590 | } | |
591 | ||
592 | /* Audio callbacks */ | |
593 | static int hdmi_audio_startup(struct device *dev, | |
594 | void (*abort_cb)(struct device *dev)) | |
595 | { | |
596 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
597 | int ret = 0; | |
598 | ||
599 | mutex_lock(&hd->lock); | |
600 | ||
601 | if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { | |
602 | ret = -EPERM; | |
603 | goto out; | |
604 | } | |
605 | ||
606 | hd->audio_abort_cb = abort_cb; | |
607 | ||
608 | out: | |
609 | mutex_unlock(&hd->lock); | |
610 | ||
611 | return ret; | |
612 | } | |
613 | ||
614 | static int hdmi_audio_shutdown(struct device *dev) | |
615 | { | |
616 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
617 | ||
618 | mutex_lock(&hd->lock); | |
619 | hd->audio_abort_cb = NULL; | |
620 | hd->audio_configured = false; | |
621 | hd->audio_playing = false; | |
622 | mutex_unlock(&hd->lock); | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | static int hdmi_audio_start(struct device *dev) | |
628 | { | |
629 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
630 | unsigned long flags; | |
631 | ||
632 | WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); | |
633 | ||
634 | spin_lock_irqsave(&hd->audio_playing_lock, flags); | |
635 | ||
636 | if (hd->display_enabled) | |
637 | hdmi_start_audio_stream(hd); | |
638 | hd->audio_playing = true; | |
639 | ||
640 | spin_unlock_irqrestore(&hd->audio_playing_lock, flags); | |
641 | return 0; | |
642 | } | |
643 | ||
644 | static void hdmi_audio_stop(struct device *dev) | |
645 | { | |
646 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
647 | unsigned long flags; | |
648 | ||
649 | WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); | |
650 | ||
651 | spin_lock_irqsave(&hd->audio_playing_lock, flags); | |
652 | ||
653 | if (hd->display_enabled) | |
654 | hdmi_stop_audio_stream(hd); | |
655 | hd->audio_playing = false; | |
656 | ||
657 | spin_unlock_irqrestore(&hd->audio_playing_lock, flags); | |
658 | } | |
659 | ||
660 | static int hdmi_audio_config(struct device *dev, | |
661 | struct omap_dss_audio *dss_audio) | |
662 | { | |
663 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
664 | int ret; | |
665 | ||
666 | mutex_lock(&hd->lock); | |
667 | ||
668 | if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { | |
669 | ret = -EPERM; | |
670 | goto out; | |
671 | } | |
672 | ||
673 | ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio, | |
674 | hd->cfg.timings.pixelclock); | |
675 | ||
676 | if (!ret) { | |
677 | hd->audio_configured = true; | |
678 | hd->audio_config = *dss_audio; | |
679 | } | |
680 | out: | |
681 | mutex_unlock(&hd->lock); | |
682 | ||
683 | return ret; | |
684 | } | |
685 | ||
686 | static const struct omap_hdmi_audio_ops hdmi_audio_ops = { | |
687 | .audio_startup = hdmi_audio_startup, | |
688 | .audio_shutdown = hdmi_audio_shutdown, | |
689 | .audio_start = hdmi_audio_start, | |
690 | .audio_stop = hdmi_audio_stop, | |
691 | .audio_config = hdmi_audio_config, | |
692 | }; | |
693 | ||
694 | static int hdmi_audio_register(struct device *dev) | |
695 | { | |
696 | struct omap_hdmi_audio_pdata pdata = { | |
697 | .dev = dev, | |
698 | .dss_version = omapdss_get_version(), | |
699 | .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp), | |
700 | .ops = &hdmi_audio_ops, | |
701 | }; | |
702 | ||
703 | hdmi.audio_pdev = platform_device_register_data( | |
704 | dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO, | |
705 | &pdata, sizeof(pdata)); | |
706 | ||
707 | if (IS_ERR(hdmi.audio_pdev)) | |
708 | return PTR_ERR(hdmi.audio_pdev); | |
709 | ||
710 | hdmi_runtime_get(); | |
711 | hdmi.wp_idlemode = | |
712 | REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2); | |
713 | hdmi_runtime_put(); | |
714 | ||
715 | return 0; | |
716 | } | |
717 | ||
718 | /* HDMI HW IP initialisation */ | |
719 | static int hdmi5_bind(struct device *dev, struct device *master, void *data) | |
720 | { | |
721 | struct platform_device *pdev = to_platform_device(dev); | |
722 | int r; | |
723 | int irq; | |
724 | ||
725 | hdmi.pdev = pdev; | |
726 | dev_set_drvdata(&pdev->dev, &hdmi); | |
727 | ||
728 | mutex_init(&hdmi.lock); | |
729 | spin_lock_init(&hdmi.audio_playing_lock); | |
730 | ||
731 | if (pdev->dev.of_node) { | |
732 | r = hdmi_probe_of(pdev); | |
733 | if (r) | |
734 | return r; | |
735 | } | |
736 | ||
737 | r = hdmi_wp_init(pdev, &hdmi.wp); | |
738 | if (r) | |
739 | return r; | |
740 | ||
741 | r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp); | |
742 | if (r) | |
743 | return r; | |
744 | ||
745 | r = hdmi_phy_init(pdev, &hdmi.phy); | |
746 | if (r) | |
747 | goto err; | |
748 | ||
749 | r = hdmi5_core_init(pdev, &hdmi.core); | |
750 | if (r) | |
751 | goto err; | |
752 | ||
753 | irq = platform_get_irq(pdev, 0); | |
754 | if (irq < 0) { | |
755 | DSSERR("platform_get_irq failed\n"); | |
756 | r = -ENODEV; | |
757 | goto err; | |
758 | } | |
759 | ||
760 | r = devm_request_threaded_irq(&pdev->dev, irq, | |
761 | NULL, hdmi_irq_handler, | |
762 | IRQF_ONESHOT, "OMAP HDMI", &hdmi.wp); | |
763 | if (r) { | |
764 | DSSERR("HDMI IRQ request failed\n"); | |
765 | goto err; | |
766 | } | |
767 | ||
768 | pm_runtime_enable(&pdev->dev); | |
769 | ||
770 | hdmi_init_output(pdev); | |
771 | ||
772 | r = hdmi_audio_register(&pdev->dev); | |
773 | if (r) { | |
774 | DSSERR("Registering HDMI audio failed %d\n", r); | |
775 | hdmi_uninit_output(pdev); | |
776 | pm_runtime_disable(&pdev->dev); | |
777 | return r; | |
778 | } | |
779 | ||
780 | dss_debugfs_create_file("hdmi", hdmi_dump_regs); | |
781 | ||
782 | return 0; | |
783 | err: | |
784 | hdmi_pll_uninit(&hdmi.pll); | |
785 | return r; | |
786 | } | |
787 | ||
788 | static void hdmi5_unbind(struct device *dev, struct device *master, void *data) | |
789 | { | |
790 | struct platform_device *pdev = to_platform_device(dev); | |
791 | ||
792 | if (hdmi.audio_pdev) | |
793 | platform_device_unregister(hdmi.audio_pdev); | |
794 | ||
795 | hdmi_uninit_output(pdev); | |
796 | ||
797 | hdmi_pll_uninit(&hdmi.pll); | |
798 | ||
799 | pm_runtime_disable(&pdev->dev); | |
800 | } | |
801 | ||
802 | static const struct component_ops hdmi5_component_ops = { | |
803 | .bind = hdmi5_bind, | |
804 | .unbind = hdmi5_unbind, | |
805 | }; | |
806 | ||
807 | static int hdmi5_probe(struct platform_device *pdev) | |
808 | { | |
809 | return component_add(&pdev->dev, &hdmi5_component_ops); | |
810 | } | |
811 | ||
812 | static int hdmi5_remove(struct platform_device *pdev) | |
813 | { | |
814 | component_del(&pdev->dev, &hdmi5_component_ops); | |
815 | return 0; | |
816 | } | |
817 | ||
818 | static int hdmi_runtime_suspend(struct device *dev) | |
819 | { | |
820 | dispc_runtime_put(); | |
821 | ||
822 | return 0; | |
823 | } | |
824 | ||
825 | static int hdmi_runtime_resume(struct device *dev) | |
826 | { | |
827 | int r; | |
828 | ||
829 | r = dispc_runtime_get(); | |
830 | if (r < 0) | |
831 | return r; | |
832 | ||
833 | return 0; | |
834 | } | |
835 | ||
836 | static const struct dev_pm_ops hdmi_pm_ops = { | |
837 | .runtime_suspend = hdmi_runtime_suspend, | |
838 | .runtime_resume = hdmi_runtime_resume, | |
839 | }; | |
840 | ||
841 | static const struct of_device_id hdmi_of_match[] = { | |
842 | { .compatible = "ti,omap5-hdmi", }, | |
843 | { .compatible = "ti,dra7-hdmi", }, | |
844 | {}, | |
845 | }; | |
846 | ||
847 | static struct platform_driver omapdss_hdmihw_driver = { | |
848 | .probe = hdmi5_probe, | |
849 | .remove = hdmi5_remove, | |
850 | .driver = { | |
851 | .name = "omapdss_hdmi5", | |
852 | .pm = &hdmi_pm_ops, | |
853 | .of_match_table = hdmi_of_match, | |
854 | .suppress_bind_attrs = true, | |
855 | }, | |
856 | }; | |
857 | ||
858 | int __init hdmi5_init_platform_driver(void) | |
859 | { | |
860 | return platform_driver_register(&omapdss_hdmihw_driver); | |
861 | } | |
862 | ||
863 | void hdmi5_uninit_platform_driver(void) | |
864 | { | |
865 | platform_driver_unregister(&omapdss_hdmihw_driver); | |
866 | } |