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Commit | Line | Data |
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c3198a5e | 1 | /* |
ef26958a | 2 | * HDMI interface DSS driver for TI's OMAP4 family of SoCs. |
c3198a5e M |
3 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/ |
4 | * Authors: Yong Zhi | |
5 | * Mythri pk <mythripk@ti.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License version 2 as published by | |
9 | * the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #define DSS_SUBSYS_NAME "HDMI" | |
21 | ||
22 | #include <linux/kernel.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/err.h> | |
25 | #include <linux/io.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/mutex.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/string.h> | |
24e6289c | 30 | #include <linux/platform_device.h> |
4fbafaf3 TV |
31 | #include <linux/pm_runtime.h> |
32 | #include <linux/clk.h> | |
cca35017 | 33 | #include <linux/gpio.h> |
17486943 | 34 | #include <linux/regulator/consumer.h> |
736e60dd | 35 | #include <linux/component.h> |
a0b38cc4 | 36 | #include <video/omapdss.h> |
4d594dff | 37 | #include <sound/omap-hdmi-audio.h> |
c3198a5e | 38 | |
ef26958a | 39 | #include "hdmi4_core.h" |
c3198a5e | 40 | #include "dss.h" |
ad44cc32 | 41 | #include "dss_features.h" |
945514b5 | 42 | #include "hdmi.h" |
c3198a5e | 43 | |
945514b5 | 44 | static struct omap_hdmi hdmi; |
c3198a5e | 45 | |
4fbafaf3 TV |
46 | static int hdmi_runtime_get(void) |
47 | { | |
48 | int r; | |
49 | ||
50 | DSSDBG("hdmi_runtime_get\n"); | |
51 | ||
52 | r = pm_runtime_get_sync(&hdmi.pdev->dev); | |
53 | WARN_ON(r < 0); | |
a247ce78 | 54 | if (r < 0) |
852f0838 | 55 | return r; |
a247ce78 AT |
56 | |
57 | return 0; | |
4fbafaf3 TV |
58 | } |
59 | ||
60 | static void hdmi_runtime_put(void) | |
61 | { | |
62 | int r; | |
63 | ||
64 | DSSDBG("hdmi_runtime_put\n"); | |
65 | ||
0eaf9f52 | 66 | r = pm_runtime_put_sync(&hdmi.pdev->dev); |
5be3aebd | 67 | WARN_ON(r < 0 && r != -ENOSYS); |
4fbafaf3 TV |
68 | } |
69 | ||
dcf5f729 TV |
70 | static irqreturn_t hdmi_irq_handler(int irq, void *data) |
71 | { | |
72 | struct hdmi_wp_data *wp = data; | |
73 | u32 irqstatus; | |
74 | ||
75 | irqstatus = hdmi_wp_get_irqstatus(wp); | |
76 | hdmi_wp_set_irqstatus(wp, irqstatus); | |
77 | ||
78 | if ((irqstatus & HDMI_IRQ_LINK_CONNECT) && | |
79 | irqstatus & HDMI_IRQ_LINK_DISCONNECT) { | |
80 | /* | |
81 | * If we get both connect and disconnect interrupts at the same | |
82 | * time, turn off the PHY, clear interrupts, and restart, which | |
83 | * raises connect interrupt if a cable is connected, or nothing | |
84 | * if cable is not connected. | |
85 | */ | |
86 | hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF); | |
87 | ||
88 | hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT | | |
89 | HDMI_IRQ_LINK_DISCONNECT); | |
90 | ||
91 | hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); | |
92 | } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) { | |
93 | hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON); | |
94 | } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) { | |
95 | hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); | |
96 | } | |
97 | ||
98 | return IRQ_HANDLED; | |
99 | } | |
100 | ||
e25001d8 TV |
101 | static int hdmi_init_regulator(void) |
102 | { | |
818a053c | 103 | int r; |
e25001d8 TV |
104 | struct regulator *reg; |
105 | ||
945514b5 | 106 | if (hdmi.vdda_reg != NULL) |
e25001d8 TV |
107 | return 0; |
108 | ||
931d4bd6 | 109 | reg = devm_regulator_get(&hdmi.pdev->dev, "vdda"); |
e25001d8 TV |
110 | |
111 | if (IS_ERR(reg)) { | |
40359a9b | 112 | if (PTR_ERR(reg) != -EPROBE_DEFER) |
931d4bd6 | 113 | DSSERR("can't get VDDA regulator\n"); |
e25001d8 TV |
114 | return PTR_ERR(reg); |
115 | } | |
116 | ||
818a053c TV |
117 | if (regulator_can_change_voltage(reg)) { |
118 | r = regulator_set_voltage(reg, 1800000, 1800000); | |
119 | if (r) { | |
120 | devm_regulator_put(reg); | |
121 | DSSWARN("can't set the regulator voltage\n"); | |
122 | return r; | |
123 | } | |
124 | } | |
125 | ||
945514b5 | 126 | hdmi.vdda_reg = reg; |
e25001d8 TV |
127 | |
128 | return 0; | |
129 | } | |
130 | ||
bb426fc9 | 131 | static int hdmi_power_on_core(struct omap_dss_device *dssdev) |
c3198a5e | 132 | { |
46095b2d | 133 | int r; |
c3198a5e | 134 | |
945514b5 | 135 | r = regulator_enable(hdmi.vdda_reg); |
17486943 | 136 | if (r) |
164ebdd1 | 137 | return r; |
17486943 | 138 | |
4fbafaf3 TV |
139 | r = hdmi_runtime_get(); |
140 | if (r) | |
cca35017 | 141 | goto err_runtime_get; |
c3198a5e | 142 | |
bb426fc9 TV |
143 | /* Make selection of HDMI in DSS */ |
144 | dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK); | |
145 | ||
0b450c31 TV |
146 | hdmi.core_enabled = true; |
147 | ||
bb426fc9 TV |
148 | return 0; |
149 | ||
150 | err_runtime_get: | |
945514b5 | 151 | regulator_disable(hdmi.vdda_reg); |
164ebdd1 | 152 | |
bb426fc9 TV |
153 | return r; |
154 | } | |
155 | ||
156 | static void hdmi_power_off_core(struct omap_dss_device *dssdev) | |
157 | { | |
0b450c31 TV |
158 | hdmi.core_enabled = false; |
159 | ||
bb426fc9 | 160 | hdmi_runtime_put(); |
945514b5 | 161 | regulator_disable(hdmi.vdda_reg); |
bb426fc9 TV |
162 | } |
163 | ||
164 | static int hdmi_power_on_full(struct omap_dss_device *dssdev) | |
165 | { | |
166 | int r; | |
167 | struct omap_video_timings *p; | |
46e1ef3b | 168 | enum omap_channel channel = dssdev->dispc_channel; |
dcf5f729 | 169 | struct hdmi_wp_data *wp = &hdmi.wp; |
c84c3a5b | 170 | struct dss_pll_clock_info hdmi_cinfo = { 0 }; |
67d8ffdd | 171 | unsigned pc; |
bb426fc9 TV |
172 | |
173 | r = hdmi_power_on_core(dssdev); | |
174 | if (r) | |
175 | return r; | |
176 | ||
dcf5f729 TV |
177 | /* disable and clear irqs */ |
178 | hdmi_wp_clear_irqenable(wp, 0xffffffff); | |
179 | hdmi_wp_set_irqstatus(wp, 0xffffffff); | |
180 | ||
275cfa1a | 181 | p = &hdmi.cfg.timings; |
c3198a5e | 182 | |
7849398f | 183 | DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res); |
c3198a5e | 184 | |
67d8ffdd TV |
185 | pc = p->pixelclock; |
186 | if (p->double_pixel) | |
187 | pc *= 2; | |
188 | ||
189 | hdmi_pll_compute(&hdmi.pll, pc, &hdmi_cinfo); | |
c3198a5e | 190 | |
c84c3a5b | 191 | r = dss_pll_enable(&hdmi.pll.pll); |
c3198a5e | 192 | if (r) { |
c2fbd061 | 193 | DSSERR("Failed to enable PLL\n"); |
cca35017 | 194 | goto err_pll_enable; |
c3198a5e M |
195 | } |
196 | ||
c84c3a5b | 197 | r = dss_pll_set_config(&hdmi.pll.pll, &hdmi_cinfo); |
c2fbd061 TV |
198 | if (r) { |
199 | DSSERR("Failed to configure PLL\n"); | |
200 | goto err_pll_cfg; | |
201 | } | |
202 | ||
c84c3a5b TV |
203 | r = hdmi_phy_configure(&hdmi.phy, hdmi_cinfo.clkdco, |
204 | hdmi_cinfo.clkout[0]); | |
c3198a5e | 205 | if (r) { |
dcf5f729 TV |
206 | DSSDBG("Failed to configure PHY\n"); |
207 | goto err_phy_cfg; | |
c3198a5e M |
208 | } |
209 | ||
dcf5f729 TV |
210 | r = hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); |
211 | if (r) | |
212 | goto err_phy_pwr; | |
213 | ||
275cfa1a | 214 | hdmi4_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg); |
c3198a5e | 215 | |
c3198a5e M |
216 | /* bypass TV gamma table */ |
217 | dispc_enable_gamma_table(0); | |
218 | ||
219 | /* tv size */ | |
46e1ef3b | 220 | dss_mgr_set_timings(channel, p); |
c3198a5e | 221 | |
46e1ef3b | 222 | r = dss_mgr_enable(channel); |
33ca237f TV |
223 | if (r) |
224 | goto err_mgr_enable; | |
3870c909 | 225 | |
4e4b53ce TV |
226 | r = hdmi_wp_video_start(&hdmi.wp); |
227 | if (r) | |
228 | goto err_vid_enable; | |
229 | ||
dcf5f729 TV |
230 | hdmi_wp_set_irqenable(wp, |
231 | HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT); | |
232 | ||
c3198a5e | 233 | return 0; |
33ca237f | 234 | |
c0456be3 | 235 | err_vid_enable: |
46e1ef3b | 236 | dss_mgr_disable(channel); |
4e4b53ce | 237 | err_mgr_enable: |
dcf5f729 TV |
238 | hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF); |
239 | err_phy_pwr: | |
9bba13f0 | 240 | err_phy_cfg: |
c2fbd061 | 241 | err_pll_cfg: |
c84c3a5b | 242 | dss_pll_disable(&hdmi.pll.pll); |
cca35017 | 243 | err_pll_enable: |
bb426fc9 | 244 | hdmi_power_off_core(dssdev); |
c3198a5e M |
245 | return -EIO; |
246 | } | |
247 | ||
bb426fc9 | 248 | static void hdmi_power_off_full(struct omap_dss_device *dssdev) |
c3198a5e | 249 | { |
46e1ef3b | 250 | enum omap_channel channel = dssdev->dispc_channel; |
cea87b92 | 251 | |
dcf5f729 TV |
252 | hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); |
253 | ||
275cfa1a | 254 | hdmi_wp_video_stop(&hdmi.wp); |
dcf5f729 | 255 | |
46e1ef3b | 256 | dss_mgr_disable(channel); |
4e4b53ce | 257 | |
dcf5f729 TV |
258 | hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF); |
259 | ||
c84c3a5b | 260 | dss_pll_disable(&hdmi.pll.pll); |
17486943 | 261 | |
bb426fc9 | 262 | hdmi_power_off_core(dssdev); |
c3198a5e M |
263 | } |
264 | ||
164ebdd1 | 265 | static int hdmi_display_check_timing(struct omap_dss_device *dssdev, |
c3198a5e M |
266 | struct omap_video_timings *timings) |
267 | { | |
46e1ef3b | 268 | if (!dispc_mgr_timings_ok(dssdev->dispc_channel, timings)) |
c3198a5e | 269 | return -EINVAL; |
c3198a5e M |
270 | |
271 | return 0; | |
c3198a5e M |
272 | } |
273 | ||
164ebdd1 | 274 | static void hdmi_display_set_timing(struct omap_dss_device *dssdev, |
7849398f | 275 | struct omap_video_timings *timings) |
c3198a5e | 276 | { |
ed1aa900 AT |
277 | mutex_lock(&hdmi.lock); |
278 | ||
ab0aee95 | 279 | hdmi.cfg.timings = *timings; |
5391e87d | 280 | |
ab0aee95 | 281 | dispc_set_tv_pclk(timings->pixelclock); |
1e676248 | 282 | |
ed1aa900 | 283 | mutex_unlock(&hdmi.lock); |
c3198a5e M |
284 | } |
285 | ||
164ebdd1 | 286 | static void hdmi_display_get_timings(struct omap_dss_device *dssdev, |
0b450c31 TV |
287 | struct omap_video_timings *timings) |
288 | { | |
ab0aee95 | 289 | *timings = hdmi.cfg.timings; |
0b450c31 TV |
290 | } |
291 | ||
e40402cf | 292 | static void hdmi_dump_regs(struct seq_file *s) |
162874d5 M |
293 | { |
294 | mutex_lock(&hdmi.lock); | |
295 | ||
f8fb7d7b WY |
296 | if (hdmi_runtime_get()) { |
297 | mutex_unlock(&hdmi.lock); | |
162874d5 | 298 | return; |
f8fb7d7b | 299 | } |
162874d5 | 300 | |
275cfa1a AT |
301 | hdmi_wp_dump(&hdmi.wp, s); |
302 | hdmi_pll_dump(&hdmi.pll, s); | |
303 | hdmi_phy_dump(&hdmi.phy, s); | |
304 | hdmi4_core_dump(&hdmi.core, s); | |
162874d5 M |
305 | |
306 | hdmi_runtime_put(); | |
307 | mutex_unlock(&hdmi.lock); | |
308 | } | |
309 | ||
164ebdd1 | 310 | static int read_edid(u8 *buf, int len) |
47024565 TV |
311 | { |
312 | int r; | |
313 | ||
314 | mutex_lock(&hdmi.lock); | |
315 | ||
316 | r = hdmi_runtime_get(); | |
317 | BUG_ON(r); | |
318 | ||
275cfa1a | 319 | r = hdmi4_read_edid(&hdmi.core, buf, len); |
47024565 TV |
320 | |
321 | hdmi_runtime_put(); | |
322 | mutex_unlock(&hdmi.lock); | |
323 | ||
324 | return r; | |
325 | } | |
326 | ||
8a9d4626 JS |
327 | static void hdmi_start_audio_stream(struct omap_hdmi *hd) |
328 | { | |
329 | hdmi_wp_audio_enable(&hd->wp, true); | |
330 | hdmi4_audio_start(&hd->core, &hd->wp); | |
331 | } | |
332 | ||
333 | static void hdmi_stop_audio_stream(struct omap_hdmi *hd) | |
334 | { | |
335 | hdmi4_audio_stop(&hd->core, &hd->wp); | |
336 | hdmi_wp_audio_enable(&hd->wp, false); | |
337 | } | |
338 | ||
164ebdd1 | 339 | static int hdmi_display_enable(struct omap_dss_device *dssdev) |
c3198a5e | 340 | { |
1f68d9c4 | 341 | struct omap_dss_device *out = &hdmi.output; |
8a9d4626 | 342 | unsigned long flags; |
c3198a5e M |
343 | int r = 0; |
344 | ||
345 | DSSDBG("ENTER hdmi_display_enable\n"); | |
346 | ||
347 | mutex_lock(&hdmi.lock); | |
348 | ||
f1504ad0 | 349 | if (!out->dispc_channel_connected) { |
cea87b92 | 350 | DSSERR("failed to enable display: no output/manager\n"); |
05e1d606 TV |
351 | r = -ENODEV; |
352 | goto err0; | |
353 | } | |
354 | ||
bb426fc9 | 355 | r = hdmi_power_on_full(dssdev); |
c3198a5e M |
356 | if (r) { |
357 | DSSERR("failed to power on device\n"); | |
d3923933 | 358 | goto err0; |
c3198a5e M |
359 | } |
360 | ||
8a9d4626 JS |
361 | if (hdmi.audio_configured) { |
362 | r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, &hdmi.audio_config, | |
363 | hdmi.cfg.timings.pixelclock); | |
364 | if (r) { | |
365 | DSSERR("Error restoring audio configuration: %d", r); | |
366 | hdmi.audio_abort_cb(&hdmi.pdev->dev); | |
367 | hdmi.audio_configured = false; | |
368 | } | |
369 | } | |
370 | ||
371 | spin_lock_irqsave(&hdmi.audio_playing_lock, flags); | |
372 | if (hdmi.audio_configured && hdmi.audio_playing) | |
373 | hdmi_start_audio_stream(&hdmi); | |
4d594dff | 374 | hdmi.display_enabled = true; |
8a9d4626 | 375 | spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags); |
4d594dff | 376 | |
c3198a5e M |
377 | mutex_unlock(&hdmi.lock); |
378 | return 0; | |
379 | ||
c3198a5e M |
380 | err0: |
381 | mutex_unlock(&hdmi.lock); | |
382 | return r; | |
383 | } | |
384 | ||
164ebdd1 | 385 | static void hdmi_display_disable(struct omap_dss_device *dssdev) |
c3198a5e | 386 | { |
8a9d4626 JS |
387 | unsigned long flags; |
388 | ||
c3198a5e M |
389 | DSSDBG("Enter hdmi_display_disable\n"); |
390 | ||
391 | mutex_lock(&hdmi.lock); | |
392 | ||
8a9d4626 JS |
393 | spin_lock_irqsave(&hdmi.audio_playing_lock, flags); |
394 | hdmi_stop_audio_stream(&hdmi); | |
395 | hdmi.display_enabled = false; | |
396 | spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags); | |
4d594dff | 397 | |
bb426fc9 | 398 | hdmi_power_off_full(dssdev); |
c3198a5e | 399 | |
c3198a5e M |
400 | mutex_unlock(&hdmi.lock); |
401 | } | |
402 | ||
164ebdd1 | 403 | static int hdmi_core_enable(struct omap_dss_device *dssdev) |
4489823c TV |
404 | { |
405 | int r = 0; | |
406 | ||
407 | DSSDBG("ENTER omapdss_hdmi_core_enable\n"); | |
408 | ||
409 | mutex_lock(&hdmi.lock); | |
410 | ||
4489823c TV |
411 | r = hdmi_power_on_core(dssdev); |
412 | if (r) { | |
413 | DSSERR("failed to power on device\n"); | |
414 | goto err0; | |
415 | } | |
416 | ||
417 | mutex_unlock(&hdmi.lock); | |
418 | return 0; | |
419 | ||
420 | err0: | |
421 | mutex_unlock(&hdmi.lock); | |
422 | return r; | |
423 | } | |
424 | ||
164ebdd1 | 425 | static void hdmi_core_disable(struct omap_dss_device *dssdev) |
4489823c TV |
426 | { |
427 | DSSDBG("Enter omapdss_hdmi_core_disable\n"); | |
428 | ||
429 | mutex_lock(&hdmi.lock); | |
430 | ||
431 | hdmi_power_off_core(dssdev); | |
432 | ||
433 | mutex_unlock(&hdmi.lock); | |
434 | } | |
435 | ||
0b450c31 TV |
436 | static int hdmi_connect(struct omap_dss_device *dssdev, |
437 | struct omap_dss_device *dst) | |
438 | { | |
46e1ef3b | 439 | enum omap_channel channel = dssdev->dispc_channel; |
0b450c31 TV |
440 | int r; |
441 | ||
0b450c31 TV |
442 | r = hdmi_init_regulator(); |
443 | if (r) | |
444 | return r; | |
445 | ||
46e1ef3b | 446 | r = dss_mgr_connect(channel, dssdev); |
0b450c31 TV |
447 | if (r) |
448 | return r; | |
449 | ||
450 | r = omapdss_output_set_device(dssdev, dst); | |
451 | if (r) { | |
452 | DSSERR("failed to connect output to new device: %s\n", | |
453 | dst->name); | |
46e1ef3b | 454 | dss_mgr_disconnect(channel, dssdev); |
0b450c31 TV |
455 | return r; |
456 | } | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
461 | static void hdmi_disconnect(struct omap_dss_device *dssdev, | |
462 | struct omap_dss_device *dst) | |
463 | { | |
46e1ef3b TV |
464 | enum omap_channel channel = dssdev->dispc_channel; |
465 | ||
9560dc10 | 466 | WARN_ON(dst != dssdev->dst); |
0b450c31 | 467 | |
9560dc10 | 468 | if (dst != dssdev->dst) |
0b450c31 TV |
469 | return; |
470 | ||
471 | omapdss_output_unset_device(dssdev); | |
472 | ||
46e1ef3b | 473 | dss_mgr_disconnect(channel, dssdev); |
0b450c31 TV |
474 | } |
475 | ||
476 | static int hdmi_read_edid(struct omap_dss_device *dssdev, | |
477 | u8 *edid, int len) | |
478 | { | |
479 | bool need_enable; | |
480 | int r; | |
481 | ||
482 | need_enable = hdmi.core_enabled == false; | |
483 | ||
484 | if (need_enable) { | |
164ebdd1 | 485 | r = hdmi_core_enable(dssdev); |
0b450c31 TV |
486 | if (r) |
487 | return r; | |
488 | } | |
489 | ||
164ebdd1 | 490 | r = read_edid(edid, len); |
0b450c31 TV |
491 | |
492 | if (need_enable) | |
164ebdd1 | 493 | hdmi_core_disable(dssdev); |
0b450c31 TV |
494 | |
495 | return r; | |
496 | } | |
497 | ||
ab0aee95 TV |
498 | static int hdmi_set_infoframe(struct omap_dss_device *dssdev, |
499 | const struct hdmi_avi_infoframe *avi) | |
500 | { | |
501 | hdmi.cfg.infoframe = *avi; | |
502 | return 0; | |
503 | } | |
504 | ||
505 | static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev, | |
506 | bool hdmi_mode) | |
507 | { | |
508 | hdmi.cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI; | |
509 | return 0; | |
510 | } | |
511 | ||
0b450c31 TV |
512 | static const struct omapdss_hdmi_ops hdmi_ops = { |
513 | .connect = hdmi_connect, | |
514 | .disconnect = hdmi_disconnect, | |
515 | ||
164ebdd1 TV |
516 | .enable = hdmi_display_enable, |
517 | .disable = hdmi_display_disable, | |
0b450c31 | 518 | |
164ebdd1 TV |
519 | .check_timings = hdmi_display_check_timing, |
520 | .set_timings = hdmi_display_set_timing, | |
521 | .get_timings = hdmi_display_get_timings, | |
0b450c31 TV |
522 | |
523 | .read_edid = hdmi_read_edid, | |
ab0aee95 TV |
524 | .set_infoframe = hdmi_set_infoframe, |
525 | .set_hdmi_mode = hdmi_set_hdmi_mode, | |
0b450c31 TV |
526 | }; |
527 | ||
17ae4e8c | 528 | static void hdmi_init_output(struct platform_device *pdev) |
81b87f51 | 529 | { |
1f68d9c4 | 530 | struct omap_dss_device *out = &hdmi.output; |
81b87f51 | 531 | |
1f68d9c4 | 532 | out->dev = &pdev->dev; |
81b87f51 | 533 | out->id = OMAP_DSS_OUTPUT_HDMI; |
1f68d9c4 | 534 | out->output_type = OMAP_DISPLAY_TYPE_HDMI; |
7286a08f | 535 | out->name = "hdmi.0"; |
2eea5ae6 | 536 | out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; |
0b450c31 | 537 | out->ops.hdmi = &hdmi_ops; |
b7328e14 | 538 | out->owner = THIS_MODULE; |
81b87f51 | 539 | |
5d47dbc8 | 540 | omapdss_register_output(out); |
81b87f51 AT |
541 | } |
542 | ||
39c1b7bf | 543 | static void hdmi_uninit_output(struct platform_device *pdev) |
81b87f51 | 544 | { |
1f68d9c4 | 545 | struct omap_dss_device *out = &hdmi.output; |
81b87f51 | 546 | |
5d47dbc8 | 547 | omapdss_unregister_output(out); |
81b87f51 AT |
548 | } |
549 | ||
2f5dc676 TV |
550 | static int hdmi_probe_of(struct platform_device *pdev) |
551 | { | |
552 | struct device_node *node = pdev->dev.of_node; | |
553 | struct device_node *ep; | |
554 | int r; | |
555 | ||
556 | ep = omapdss_of_get_first_endpoint(node); | |
557 | if (!ep) | |
558 | return 0; | |
559 | ||
560 | r = hdmi_parse_lanes_of(pdev, ep, &hdmi.phy); | |
561 | if (r) | |
562 | goto err; | |
563 | ||
564 | of_node_put(ep); | |
565 | return 0; | |
566 | ||
567 | err: | |
568 | of_node_put(ep); | |
569 | return r; | |
570 | } | |
571 | ||
4d594dff JS |
572 | /* Audio callbacks */ |
573 | static int hdmi_audio_startup(struct device *dev, | |
574 | void (*abort_cb)(struct device *dev)) | |
575 | { | |
576 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
577 | int ret = 0; | |
578 | ||
579 | mutex_lock(&hd->lock); | |
580 | ||
581 | if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { | |
582 | ret = -EPERM; | |
583 | goto out; | |
584 | } | |
585 | ||
586 | hd->audio_abort_cb = abort_cb; | |
587 | ||
588 | out: | |
589 | mutex_unlock(&hd->lock); | |
590 | ||
591 | return ret; | |
592 | } | |
593 | ||
594 | static int hdmi_audio_shutdown(struct device *dev) | |
595 | { | |
596 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
597 | ||
598 | mutex_lock(&hd->lock); | |
599 | hd->audio_abort_cb = NULL; | |
8a9d4626 JS |
600 | hd->audio_configured = false; |
601 | hd->audio_playing = false; | |
4d594dff JS |
602 | mutex_unlock(&hd->lock); |
603 | ||
604 | return 0; | |
605 | } | |
606 | ||
607 | static int hdmi_audio_start(struct device *dev) | |
608 | { | |
609 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
8a9d4626 | 610 | unsigned long flags; |
4d594dff JS |
611 | |
612 | WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); | |
4d594dff | 613 | |
8a9d4626 JS |
614 | spin_lock_irqsave(&hd->audio_playing_lock, flags); |
615 | ||
616 | if (hd->display_enabled) | |
617 | hdmi_start_audio_stream(hd); | |
618 | hd->audio_playing = true; | |
4d594dff | 619 | |
8a9d4626 | 620 | spin_unlock_irqrestore(&hd->audio_playing_lock, flags); |
4d594dff JS |
621 | return 0; |
622 | } | |
623 | ||
624 | static void hdmi_audio_stop(struct device *dev) | |
625 | { | |
626 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
8a9d4626 | 627 | unsigned long flags; |
4d594dff JS |
628 | |
629 | WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); | |
4d594dff | 630 | |
8a9d4626 JS |
631 | spin_lock_irqsave(&hd->audio_playing_lock, flags); |
632 | ||
633 | if (hd->display_enabled) | |
634 | hdmi_stop_audio_stream(hd); | |
635 | hd->audio_playing = false; | |
636 | ||
637 | spin_unlock_irqrestore(&hd->audio_playing_lock, flags); | |
4d594dff JS |
638 | } |
639 | ||
640 | static int hdmi_audio_config(struct device *dev, | |
641 | struct omap_dss_audio *dss_audio) | |
642 | { | |
643 | struct omap_hdmi *hd = dev_get_drvdata(dev); | |
644 | int ret; | |
645 | ||
646 | mutex_lock(&hd->lock); | |
647 | ||
648 | if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { | |
649 | ret = -EPERM; | |
650 | goto out; | |
651 | } | |
652 | ||
653 | ret = hdmi4_audio_config(&hd->core, &hd->wp, dss_audio, | |
654 | hd->cfg.timings.pixelclock); | |
8a9d4626 JS |
655 | if (!ret) { |
656 | hd->audio_configured = true; | |
657 | hd->audio_config = *dss_audio; | |
658 | } | |
4d594dff JS |
659 | out: |
660 | mutex_unlock(&hd->lock); | |
661 | ||
662 | return ret; | |
663 | } | |
664 | ||
665 | static const struct omap_hdmi_audio_ops hdmi_audio_ops = { | |
666 | .audio_startup = hdmi_audio_startup, | |
667 | .audio_shutdown = hdmi_audio_shutdown, | |
668 | .audio_start = hdmi_audio_start, | |
669 | .audio_stop = hdmi_audio_stop, | |
670 | .audio_config = hdmi_audio_config, | |
671 | }; | |
672 | ||
673 | static int hdmi_audio_register(struct device *dev) | |
674 | { | |
675 | struct omap_hdmi_audio_pdata pdata = { | |
676 | .dev = dev, | |
677 | .dss_version = omapdss_get_version(), | |
678 | .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp), | |
679 | .ops = &hdmi_audio_ops, | |
680 | }; | |
681 | ||
682 | hdmi.audio_pdev = platform_device_register_data( | |
683 | dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO, | |
684 | &pdata, sizeof(pdata)); | |
685 | ||
686 | if (IS_ERR(hdmi.audio_pdev)) | |
687 | return PTR_ERR(hdmi.audio_pdev); | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
c3198a5e | 692 | /* HDMI HW IP initialisation */ |
736e60dd | 693 | static int hdmi4_bind(struct device *dev, struct device *master, void *data) |
c3198a5e | 694 | { |
736e60dd | 695 | struct platform_device *pdev = to_platform_device(dev); |
38f3daf6 | 696 | int r; |
dcf5f729 | 697 | int irq; |
c3198a5e | 698 | |
c3198a5e | 699 | hdmi.pdev = pdev; |
945514b5 | 700 | dev_set_drvdata(&pdev->dev, &hdmi); |
c3198a5e M |
701 | |
702 | mutex_init(&hdmi.lock); | |
8a9d4626 | 703 | spin_lock_init(&hdmi.audio_playing_lock); |
c3198a5e | 704 | |
2f5dc676 TV |
705 | if (pdev->dev.of_node) { |
706 | r = hdmi_probe_of(pdev); | |
707 | if (r) | |
708 | return r; | |
709 | } | |
710 | ||
275cfa1a | 711 | r = hdmi_wp_init(pdev, &hdmi.wp); |
f382d9eb AT |
712 | if (r) |
713 | return r; | |
c3198a5e | 714 | |
03aafa2c | 715 | r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp); |
c1577c1e AT |
716 | if (r) |
717 | return r; | |
718 | ||
275cfa1a | 719 | r = hdmi_phy_init(pdev, &hdmi.phy); |
5cac5aee | 720 | if (r) |
c84c3a5b | 721 | goto err; |
ddb1d5ca | 722 | |
275cfa1a | 723 | r = hdmi4_core_init(pdev, &hdmi.core); |
425f02fd | 724 | if (r) |
c84c3a5b | 725 | goto err; |
4fbafaf3 | 726 | |
dcf5f729 TV |
727 | irq = platform_get_irq(pdev, 0); |
728 | if (irq < 0) { | |
729 | DSSERR("platform_get_irq failed\n"); | |
c84c3a5b TV |
730 | r = -ENODEV; |
731 | goto err; | |
dcf5f729 TV |
732 | } |
733 | ||
734 | r = devm_request_threaded_irq(&pdev->dev, irq, | |
735 | NULL, hdmi_irq_handler, | |
736 | IRQF_ONESHOT, "OMAP HDMI", &hdmi.wp); | |
737 | if (r) { | |
738 | DSSERR("HDMI IRQ request failed\n"); | |
c84c3a5b | 739 | goto err; |
dcf5f729 TV |
740 | } |
741 | ||
4fbafaf3 TV |
742 | pm_runtime_enable(&pdev->dev); |
743 | ||
002d368d TV |
744 | hdmi_init_output(pdev); |
745 | ||
4d594dff JS |
746 | r = hdmi_audio_register(&pdev->dev); |
747 | if (r) { | |
748 | DSSERR("Registering HDMI audio failed\n"); | |
749 | hdmi_uninit_output(pdev); | |
750 | pm_runtime_disable(&pdev->dev); | |
751 | return r; | |
752 | } | |
753 | ||
e40402cf TV |
754 | dss_debugfs_create_file("hdmi", hdmi_dump_regs); |
755 | ||
cca35017 | 756 | return 0; |
c84c3a5b TV |
757 | err: |
758 | hdmi_pll_uninit(&hdmi.pll); | |
759 | return r; | |
cca35017 TV |
760 | } |
761 | ||
736e60dd | 762 | static void hdmi4_unbind(struct device *dev, struct device *master, void *data) |
c3198a5e | 763 | { |
736e60dd TV |
764 | struct platform_device *pdev = to_platform_device(dev); |
765 | ||
4d594dff JS |
766 | if (hdmi.audio_pdev) |
767 | platform_device_unregister(hdmi.audio_pdev); | |
768 | ||
81b87f51 AT |
769 | hdmi_uninit_output(pdev); |
770 | ||
c84c3a5b TV |
771 | hdmi_pll_uninit(&hdmi.pll); |
772 | ||
4fbafaf3 | 773 | pm_runtime_disable(&pdev->dev); |
736e60dd TV |
774 | } |
775 | ||
776 | static const struct component_ops hdmi4_component_ops = { | |
777 | .bind = hdmi4_bind, | |
778 | .unbind = hdmi4_unbind, | |
779 | }; | |
4fbafaf3 | 780 | |
736e60dd TV |
781 | static int hdmi4_probe(struct platform_device *pdev) |
782 | { | |
783 | return component_add(&pdev->dev, &hdmi4_component_ops); | |
784 | } | |
785 | ||
786 | static int hdmi4_remove(struct platform_device *pdev) | |
787 | { | |
788 | component_del(&pdev->dev, &hdmi4_component_ops); | |
c3198a5e M |
789 | return 0; |
790 | } | |
791 | ||
4fbafaf3 TV |
792 | static int hdmi_runtime_suspend(struct device *dev) |
793 | { | |
4fbafaf3 | 794 | dispc_runtime_put(); |
4fbafaf3 TV |
795 | |
796 | return 0; | |
797 | } | |
798 | ||
799 | static int hdmi_runtime_resume(struct device *dev) | |
800 | { | |
801 | int r; | |
802 | ||
4fbafaf3 TV |
803 | r = dispc_runtime_get(); |
804 | if (r < 0) | |
852f0838 | 805 | return r; |
4fbafaf3 | 806 | |
4fbafaf3 | 807 | return 0; |
4fbafaf3 TV |
808 | } |
809 | ||
810 | static const struct dev_pm_ops hdmi_pm_ops = { | |
811 | .runtime_suspend = hdmi_runtime_suspend, | |
812 | .runtime_resume = hdmi_runtime_resume, | |
813 | }; | |
814 | ||
0465616d TV |
815 | static const struct of_device_id hdmi_of_match[] = { |
816 | { .compatible = "ti,omap4-hdmi", }, | |
817 | {}, | |
818 | }; | |
819 | ||
c3198a5e | 820 | static struct platform_driver omapdss_hdmihw_driver = { |
736e60dd TV |
821 | .probe = hdmi4_probe, |
822 | .remove = hdmi4_remove, | |
c3198a5e M |
823 | .driver = { |
824 | .name = "omapdss_hdmi", | |
4fbafaf3 | 825 | .pm = &hdmi_pm_ops, |
0465616d | 826 | .of_match_table = hdmi_of_match, |
422ccbd5 | 827 | .suppress_bind_attrs = true, |
c3198a5e M |
828 | }, |
829 | }; | |
830 | ||
ef26958a | 831 | int __init hdmi4_init_platform_driver(void) |
c3198a5e | 832 | { |
17ae4e8c | 833 | return platform_driver_register(&omapdss_hdmihw_driver); |
c3198a5e M |
834 | } |
835 | ||
ede92695 | 836 | void hdmi4_uninit_platform_driver(void) |
c3198a5e | 837 | { |
04c742c3 | 838 | platform_driver_unregister(&omapdss_hdmihw_driver); |
c3198a5e | 839 | } |