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-rw-r--r--Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt39
-rw-r--r--include/sound/soc-topology.h21
-rw-r--r--include/sound/soc.h2
-rw-r--r--sound/soc/codecs/wm8974.c93
-rw-r--r--sound/soc/soc-topology.c240
-rw-r--r--sound/soc/sunxi/Kconfig8
-rw-r--r--sound/soc/sunxi/Makefile1
-rw-r--r--sound/soc/sunxi/sun4i-spdif.c550
8 files changed, 856 insertions, 98 deletions
diff --git a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt
new file mode 100644
index 000000000000..13503aa505a9
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt
@@ -0,0 +1,39 @@
1Allwinner Sony/Philips Digital Interface Format (S/PDIF) Controller
2
3The Allwinner S/PDIF audio block is a transceiver that allows the
4processor to receive and transmit digital audio via an coaxial cable or
5a fibre cable.
6For now only playback is supported.
7
8Required properties:
9
10 - compatible : should be one of the following:
11 - "allwinner,sun4i-a10-spdif": for the Allwinner A10 SoC
12
13 - reg : Offset and length of the register set for the device.
14
15 - interrupts : Contains the spdif interrupt.
16
17 - dmas : Generic dma devicetree binding as described in
18 Documentation/devicetree/bindings/dma/dma.txt.
19
20 - dma-names : Two dmas have to be defined, "tx" and "rx".
21
22 - clocks : Contains an entry for each entry in clock-names.
23
24 - clock-names : Includes the following entries:
25 "apb" clock for the spdif bus.
26 "spdif" clock for spdif controller.
27
28Example:
29
30spdif: spdif@01c21000 {
31 compatible = "allwinner,sun4i-a10-spdif";
32 reg = <0x01c21000 0x40>;
33 interrupts = <13>;
34 clocks = <&apb0_gates 1>, <&spdif_clk>;
35 clock-names = "apb", "spdif";
36 dmas = <&dma 0 2>, <&dma 0 2>;
37 dma-names = "rx", "tx";
38 status = "okay";
39};
diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index 5b68e3f5aa85..b897b9d63161 100644
--- a/include/sound/soc-topology.h
+++ b/include/sound/soc-topology.h
@@ -56,12 +56,6 @@ struct snd_soc_dobj_widget {
56 unsigned int kcontrol_enum:1; /* this widget is an enum kcontrol */ 56 unsigned int kcontrol_enum:1; /* this widget is an enum kcontrol */
57}; 57};
58 58
59/* dynamic PCM DAI object */
60struct snd_soc_dobj_pcm_dai {
61 struct snd_soc_tplg_pcm_dai *pd;
62 unsigned int count;
63};
64
65/* generic dynamic object - all dynamic objects belong to this struct */ 59/* generic dynamic object - all dynamic objects belong to this struct */
66struct snd_soc_dobj { 60struct snd_soc_dobj {
67 enum snd_soc_dobj_type type; 61 enum snd_soc_dobj_type type;
@@ -71,7 +65,6 @@ struct snd_soc_dobj {
71 union { 65 union {
72 struct snd_soc_dobj_control control; 66 struct snd_soc_dobj_control control;
73 struct snd_soc_dobj_widget widget; 67 struct snd_soc_dobj_widget widget;
74 struct snd_soc_dobj_pcm_dai pcm_dai;
75 }; 68 };
76 void *private; /* core does not touch this */ 69 void *private; /* core does not touch this */
77}; 70};
@@ -126,10 +119,16 @@ struct snd_soc_tplg_ops {
126 int (*widget_unload)(struct snd_soc_component *, 119 int (*widget_unload)(struct snd_soc_component *,
127 struct snd_soc_dobj *); 120 struct snd_soc_dobj *);
128 121
129 /* FE - used for any driver specific init */ 122 /* FE DAI - used for any driver specific init */
130 int (*pcm_dai_load)(struct snd_soc_component *, 123 int (*dai_load)(struct snd_soc_component *,
131 struct snd_soc_tplg_pcm_dai *pcm_dai, int num_fe); 124 struct snd_soc_dai_driver *dai_drv);
132 int (*pcm_dai_unload)(struct snd_soc_component *, 125 int (*dai_unload)(struct snd_soc_component *,
126 struct snd_soc_dobj *);
127
128 /* DAI link - used for any driver specific init */
129 int (*link_load)(struct snd_soc_component *,
130 struct snd_soc_dai_link *link);
131 int (*link_unload)(struct snd_soc_component *,
133 struct snd_soc_dobj *); 132 struct snd_soc_dobj *);
134 133
135 /* callback to handle vendor bespoke data */ 134 /* callback to handle vendor bespoke data */
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7afb72ceac56..02b4a215fd75 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -27,7 +27,6 @@
27#include <sound/compress_driver.h> 27#include <sound/compress_driver.h>
28#include <sound/control.h> 28#include <sound/control.h>
29#include <sound/ac97_codec.h> 29#include <sound/ac97_codec.h>
30#include <sound/soc-topology.h>
31 30
32/* 31/*
33 * Convenience kcontrol builders 32 * Convenience kcontrol builders
@@ -404,6 +403,7 @@ struct snd_soc_jack_zone;
404struct snd_soc_jack_pin; 403struct snd_soc_jack_pin;
405#include <sound/soc-dapm.h> 404#include <sound/soc-dapm.h>
406#include <sound/soc-dpcm.h> 405#include <sound/soc-dpcm.h>
406#include <sound/soc-topology.h>
407 407
408struct snd_soc_jack_gpio; 408struct snd_soc_jack_gpio;
409 409
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c
index c284c7b6db8b..dc8c3b1ebb6f 100644
--- a/sound/soc/codecs/wm8974.c
+++ b/sound/soc/codecs/wm8974.c
@@ -28,6 +28,11 @@
28 28
29#include "wm8974.h" 29#include "wm8974.h"
30 30
31struct wm8974_priv {
32 unsigned int mclk;
33 unsigned int fs;
34};
35
31static const struct reg_default wm8974_reg_defaults[] = { 36static const struct reg_default wm8974_reg_defaults[] = {
32 { 0, 0x0000 }, { 1, 0x0000 }, { 2, 0x0000 }, { 3, 0x0000 }, 37 { 0, 0x0000 }, { 1, 0x0000 }, { 2, 0x0000 }, { 3, 0x0000 },
33 { 4, 0x0050 }, { 5, 0x0000 }, { 6, 0x0140 }, { 7, 0x0000 }, 38 { 4, 0x0050 }, { 5, 0x0000 }, { 6, 0x0140 }, { 7, 0x0000 },
@@ -379,6 +384,79 @@ static int wm8974_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
379 return 0; 384 return 0;
380} 385}
381 386
387static unsigned int wm8974_get_mclkdiv(unsigned int f_in, unsigned int f_out,
388 int *mclkdiv)
389{
390 unsigned int ratio = 2 * f_in / f_out;
391
392 if (ratio <= 2) {
393 *mclkdiv = WM8974_MCLKDIV_1;
394 ratio = 2;
395 } else if (ratio == 3) {
396 *mclkdiv = WM8974_MCLKDIV_1_5;
397 } else if (ratio == 4) {
398 *mclkdiv = WM8974_MCLKDIV_2;
399 } else if (ratio <= 6) {
400 *mclkdiv = WM8974_MCLKDIV_3;
401 ratio = 6;
402 } else if (ratio <= 8) {
403 *mclkdiv = WM8974_MCLKDIV_4;
404 ratio = 8;
405 } else if (ratio <= 12) {
406 *mclkdiv = WM8974_MCLKDIV_6;
407 ratio = 12;
408 } else if (ratio <= 16) {
409 *mclkdiv = WM8974_MCLKDIV_8;
410 ratio = 16;
411 } else {
412 *mclkdiv = WM8974_MCLKDIV_12;
413 ratio = 24;
414 }
415
416 return f_out * ratio / 2;
417}
418
419static int wm8974_update_clocks(struct snd_soc_dai *dai)
420{
421 struct snd_soc_codec *codec = dai->codec;
422 struct wm8974_priv *priv = snd_soc_codec_get_drvdata(codec);
423 unsigned int fs256;
424 unsigned int fpll = 0;
425 unsigned int f;
426 int mclkdiv;
427
428 if (!priv->mclk || !priv->fs)
429 return 0;
430
431 fs256 = 256 * priv->fs;
432
433 f = wm8974_get_mclkdiv(priv->mclk, fs256, &mclkdiv);
434
435 if (f != priv->mclk) {
436 /* The PLL performs best around 90MHz */
437 fpll = wm8974_get_mclkdiv(22500000, fs256, &mclkdiv);
438 }
439
440 wm8974_set_dai_pll(dai, 0, 0, priv->mclk, fpll);
441 wm8974_set_dai_clkdiv(dai, WM8974_MCLKDIV, mclkdiv);
442
443 return 0;
444}
445
446static int wm8974_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
447 unsigned int freq, int dir)
448{
449 struct snd_soc_codec *codec = dai->codec;
450 struct wm8974_priv *priv = snd_soc_codec_get_drvdata(codec);
451
452 if (dir != SND_SOC_CLOCK_IN)
453 return -EINVAL;
454
455 priv->mclk = freq;
456
457 return wm8974_update_clocks(dai);
458}
459
382static int wm8974_set_dai_fmt(struct snd_soc_dai *codec_dai, 460static int wm8974_set_dai_fmt(struct snd_soc_dai *codec_dai,
383 unsigned int fmt) 461 unsigned int fmt)
384{ 462{
@@ -441,8 +519,15 @@ static int wm8974_pcm_hw_params(struct snd_pcm_substream *substream,
441 struct snd_soc_dai *dai) 519 struct snd_soc_dai *dai)
442{ 520{
443 struct snd_soc_codec *codec = dai->codec; 521 struct snd_soc_codec *codec = dai->codec;
522 struct wm8974_priv *priv = snd_soc_codec_get_drvdata(codec);
444 u16 iface = snd_soc_read(codec, WM8974_IFACE) & 0x19f; 523 u16 iface = snd_soc_read(codec, WM8974_IFACE) & 0x19f;
445 u16 adn = snd_soc_read(codec, WM8974_ADD) & 0x1f1; 524 u16 adn = snd_soc_read(codec, WM8974_ADD) & 0x1f1;
525 int err;
526
527 priv->fs = params_rate(params);
528 err = wm8974_update_clocks(dai);
529 if (err)
530 return err;
446 531
447 /* bit size */ 532 /* bit size */
448 switch (params_width(params)) { 533 switch (params_width(params)) {
@@ -547,6 +632,7 @@ static const struct snd_soc_dai_ops wm8974_ops = {
547 .set_fmt = wm8974_set_dai_fmt, 632 .set_fmt = wm8974_set_dai_fmt,
548 .set_clkdiv = wm8974_set_dai_clkdiv, 633 .set_clkdiv = wm8974_set_dai_clkdiv,
549 .set_pll = wm8974_set_dai_pll, 634 .set_pll = wm8974_set_dai_pll,
635 .set_sysclk = wm8974_set_dai_sysclk,
550}; 636};
551 637
552static struct snd_soc_dai_driver wm8974_dai = { 638static struct snd_soc_dai_driver wm8974_dai = {
@@ -606,9 +692,16 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8974 = {
606static int wm8974_i2c_probe(struct i2c_client *i2c, 692static int wm8974_i2c_probe(struct i2c_client *i2c,
607 const struct i2c_device_id *id) 693 const struct i2c_device_id *id)
608{ 694{
695 struct wm8974_priv *priv;
609 struct regmap *regmap; 696 struct regmap *regmap;
610 int ret; 697 int ret;
611 698
699 priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
700 if (!priv)
701 return -ENOMEM;
702
703 i2c_set_clientdata(i2c, priv);
704
612 regmap = devm_regmap_init_i2c(i2c, &wm8974_regmap); 705 regmap = devm_regmap_init_i2c(i2c, &wm8974_regmap);
613 if (IS_ERR(regmap)) 706 if (IS_ERR(regmap))
614 return PTR_ERR(regmap); 707 return PTR_ERR(regmap);
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 6963ba20991c..1cf94d7fb9f4 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -223,51 +223,6 @@ static int get_widget_id(int tplg_type)
223 return -EINVAL; 223 return -EINVAL;
224} 224}
225 225
226static enum snd_soc_dobj_type get_dobj_mixer_type(
227 struct snd_soc_tplg_ctl_hdr *control_hdr)
228{
229 if (control_hdr == NULL)
230 return SND_SOC_DOBJ_NONE;
231
232 switch (control_hdr->ops.info) {
233 case SND_SOC_TPLG_CTL_VOLSW:
234 case SND_SOC_TPLG_CTL_VOLSW_SX:
235 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
236 case SND_SOC_TPLG_CTL_RANGE:
237 case SND_SOC_TPLG_CTL_STROBE:
238 return SND_SOC_DOBJ_MIXER;
239 case SND_SOC_TPLG_CTL_ENUM:
240 case SND_SOC_TPLG_CTL_ENUM_VALUE:
241 return SND_SOC_DOBJ_ENUM;
242 case SND_SOC_TPLG_CTL_BYTES:
243 return SND_SOC_DOBJ_BYTES;
244 default:
245 return SND_SOC_DOBJ_NONE;
246 }
247}
248
249static enum snd_soc_dobj_type get_dobj_type(struct snd_soc_tplg_hdr *hdr,
250 struct snd_soc_tplg_ctl_hdr *control_hdr)
251{
252 switch (hdr->type) {
253 case SND_SOC_TPLG_TYPE_MIXER:
254 return get_dobj_mixer_type(control_hdr);
255 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
256 case SND_SOC_TPLG_TYPE_MANIFEST:
257 return SND_SOC_DOBJ_NONE;
258 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
259 return SND_SOC_DOBJ_WIDGET;
260 case SND_SOC_TPLG_TYPE_DAI_LINK:
261 return SND_SOC_DOBJ_DAI_LINK;
262 case SND_SOC_TPLG_TYPE_PCM:
263 return SND_SOC_DOBJ_PCM;
264 case SND_SOC_TPLG_TYPE_CODEC_LINK:
265 return SND_SOC_DOBJ_CODEC_LINK;
266 default:
267 return SND_SOC_DOBJ_NONE;
268 }
269}
270
271static inline void soc_bind_err(struct soc_tplg *tplg, 226static inline void soc_bind_err(struct soc_tplg *tplg,
272 struct snd_soc_tplg_ctl_hdr *hdr, int index) 227 struct snd_soc_tplg_ctl_hdr *hdr, int index)
273{ 228{
@@ -330,12 +285,22 @@ static int soc_tplg_widget_load(struct soc_tplg *tplg,
330 return 0; 285 return 0;
331} 286}
332 287
333/* pass dynamic FEs configurations to component driver */ 288/* pass DAI configurations to component driver for extra intialization */
334static int soc_tplg_pcm_dai_load(struct soc_tplg *tplg, 289static int soc_tplg_dai_load(struct soc_tplg *tplg,
335 struct snd_soc_tplg_pcm_dai *pcm_dai, int num_pcm_dai) 290 struct snd_soc_dai_driver *dai_drv)
291{
292 if (tplg->comp && tplg->ops && tplg->ops->dai_load)
293 return tplg->ops->dai_load(tplg->comp, dai_drv);
294
295 return 0;
296}
297
298/* pass link configurations to component driver for extra intialization */
299static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
300 struct snd_soc_dai_link *link)
336{ 301{
337 if (tplg->comp && tplg->ops && tplg->ops->pcm_dai_load) 302 if (tplg->comp && tplg->ops && tplg->ops->link_load)
338 return tplg->ops->pcm_dai_load(tplg->comp, pcm_dai, num_pcm_dai); 303 return tplg->ops->link_load(tplg->comp, link);
339 304
340 return 0; 305 return 0;
341} 306}
@@ -495,18 +460,39 @@ static void remove_widget(struct snd_soc_component *comp,
495 /* widget w is freed by soc-dapm.c */ 460 /* widget w is freed by soc-dapm.c */
496} 461}
497 462
498/* remove PCM DAI configurations */ 463/* remove DAI configurations */
499static void remove_pcm_dai(struct snd_soc_component *comp, 464static void remove_dai(struct snd_soc_component *comp,
465 struct snd_soc_dobj *dobj, int pass)
466{
467 struct snd_soc_dai_driver *dai_drv =
468 container_of(dobj, struct snd_soc_dai_driver, dobj);
469
470 if (pass != SOC_TPLG_PASS_PCM_DAI)
471 return;
472
473 if (dobj->ops && dobj->ops->dai_unload)
474 dobj->ops->dai_unload(comp, dobj);
475
476 list_del(&dobj->list);
477 kfree(dai_drv);
478}
479
480/* remove link configurations */
481static void remove_link(struct snd_soc_component *comp,
500 struct snd_soc_dobj *dobj, int pass) 482 struct snd_soc_dobj *dobj, int pass)
501{ 483{
484 struct snd_soc_dai_link *link =
485 container_of(dobj, struct snd_soc_dai_link, dobj);
486
502 if (pass != SOC_TPLG_PASS_PCM_DAI) 487 if (pass != SOC_TPLG_PASS_PCM_DAI)
503 return; 488 return;
504 489
505 if (dobj->ops && dobj->ops->pcm_dai_unload) 490 if (dobj->ops && dobj->ops->link_unload)
506 dobj->ops->pcm_dai_unload(comp, dobj); 491 dobj->ops->link_unload(comp, dobj);
507 492
508 list_del(&dobj->list); 493 list_del(&dobj->list);
509 kfree(dobj); 494 snd_soc_remove_dai_link(comp->card, link);
495 kfree(link);
510} 496}
511 497
512/* bind a kcontrol to it's IO handlers */ 498/* bind a kcontrol to it's IO handlers */
@@ -1544,18 +1530,116 @@ static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1544 return 0; 1530 return 0;
1545} 1531}
1546 1532
1547static int soc_tplg_pcm_dai_elems_load(struct soc_tplg *tplg, 1533static void set_stream_info(struct snd_soc_pcm_stream *stream,
1534 struct snd_soc_tplg_stream_caps *caps)
1535{
1536 stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1537 stream->channels_min = caps->channels_min;
1538 stream->channels_max = caps->channels_max;
1539 stream->rates = caps->rates;
1540 stream->rate_min = caps->rate_min;
1541 stream->rate_max = caps->rate_max;
1542 stream->formats = caps->formats;
1543}
1544
1545static int soc_tplg_dai_create(struct soc_tplg *tplg,
1546 struct snd_soc_tplg_pcm *pcm)
1547{
1548 struct snd_soc_dai_driver *dai_drv;
1549 struct snd_soc_pcm_stream *stream;
1550 struct snd_soc_tplg_stream_caps *caps;
1551 int ret;
1552
1553 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1554 if (dai_drv == NULL)
1555 return -ENOMEM;
1556
1557 dai_drv->name = pcm->dai_name;
1558 dai_drv->id = pcm->dai_id;
1559
1560 if (pcm->playback) {
1561 stream = &dai_drv->playback;
1562 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1563 set_stream_info(stream, caps);
1564 }
1565
1566 if (pcm->capture) {
1567 stream = &dai_drv->capture;
1568 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1569 set_stream_info(stream, caps);
1570 }
1571
1572 /* pass control to component driver for optional further init */
1573 ret = soc_tplg_dai_load(tplg, dai_drv);
1574 if (ret < 0) {
1575 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1576 kfree(dai_drv);
1577 return ret;
1578 }
1579
1580 dai_drv->dobj.index = tplg->index;
1581 dai_drv->dobj.ops = tplg->ops;
1582 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1583 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1584
1585 /* register the DAI to the component */
1586 return snd_soc_register_dai(tplg->comp, dai_drv);
1587}
1588
1589static int soc_tplg_link_create(struct soc_tplg *tplg,
1590 struct snd_soc_tplg_pcm *pcm)
1591{
1592 struct snd_soc_dai_link *link;
1593 int ret;
1594
1595 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL);
1596 if (link == NULL)
1597 return -ENOMEM;
1598
1599 link->name = pcm->pcm_name;
1600 link->stream_name = pcm->pcm_name;
1601
1602 /* pass control to component driver for optional further init */
1603 ret = soc_tplg_dai_link_load(tplg, link);
1604 if (ret < 0) {
1605 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1606 kfree(link);
1607 return ret;
1608 }
1609
1610 link->dobj.index = tplg->index;
1611 link->dobj.ops = tplg->ops;
1612 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1613 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1614
1615 snd_soc_add_dai_link(tplg->comp->card, link);
1616 return 0;
1617}
1618
1619/* create a FE DAI and DAI link from the PCM object */
1620static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1621 struct snd_soc_tplg_pcm *pcm)
1622{
1623 int ret;
1624
1625 ret = soc_tplg_dai_create(tplg, pcm);
1626 if (ret < 0)
1627 return ret;
1628
1629 return soc_tplg_link_create(tplg, pcm);
1630}
1631
1632static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
1548 struct snd_soc_tplg_hdr *hdr) 1633 struct snd_soc_tplg_hdr *hdr)
1549{ 1634{
1550 struct snd_soc_tplg_pcm_dai *pcm_dai; 1635 struct snd_soc_tplg_pcm *pcm;
1551 struct snd_soc_dobj *dobj;
1552 int count = hdr->count; 1636 int count = hdr->count;
1553 int ret; 1637 int i;
1554 1638
1555 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 1639 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
1556 return 0; 1640 return 0;
1557 1641
1558 pcm_dai = (struct snd_soc_tplg_pcm_dai *)tplg->pos; 1642 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1559 1643
1560 if (soc_tplg_check_elem_count(tplg, 1644 if (soc_tplg_check_elem_count(tplg,
1561 sizeof(struct snd_soc_tplg_pcm), count, 1645 sizeof(struct snd_soc_tplg_pcm), count,
@@ -1565,31 +1649,16 @@ static int soc_tplg_pcm_dai_elems_load(struct soc_tplg *tplg,
1565 return -EINVAL; 1649 return -EINVAL;
1566 } 1650 }
1567 1651
1652 /* create the FE DAIs and DAI links */
1653 for (i = 0; i < count; i++) {
1654 soc_tplg_pcm_create(tplg, pcm);
1655 pcm++;
1656 }
1657
1568 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1658 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
1569 tplg->pos += sizeof(struct snd_soc_tplg_pcm) * count; 1659 tplg->pos += sizeof(struct snd_soc_tplg_pcm) * count;
1570 1660
1571 dobj = kzalloc(sizeof(struct snd_soc_dobj), GFP_KERNEL);
1572 if (dobj == NULL)
1573 return -ENOMEM;
1574
1575 /* Call the platform driver call back to register the dais */
1576 ret = soc_tplg_pcm_dai_load(tplg, pcm_dai, count);
1577 if (ret < 0) {
1578 dev_err(tplg->comp->dev, "ASoC: PCM DAI loading failed\n");
1579 goto err;
1580 }
1581
1582 dobj->type = get_dobj_type(hdr, NULL);
1583 dobj->pcm_dai.count = count;
1584 dobj->pcm_dai.pd = pcm_dai;
1585 dobj->ops = tplg->ops;
1586 dobj->index = tplg->index;
1587 list_add(&dobj->list, &tplg->comp->dobj_list);
1588 return 0; 1661 return 0;
1589
1590err:
1591 kfree(dobj);
1592 return ret;
1593} 1662}
1594 1663
1595static int soc_tplg_manifest_load(struct soc_tplg *tplg, 1664static int soc_tplg_manifest_load(struct soc_tplg *tplg,
@@ -1681,9 +1750,7 @@ static int soc_tplg_load_header(struct soc_tplg *tplg,
1681 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 1750 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
1682 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 1751 return soc_tplg_dapm_widget_elems_load(tplg, hdr);
1683 case SND_SOC_TPLG_TYPE_PCM: 1752 case SND_SOC_TPLG_TYPE_PCM:
1684 case SND_SOC_TPLG_TYPE_DAI_LINK: 1753 return soc_tplg_pcm_elems_load(tplg, hdr);
1685 case SND_SOC_TPLG_TYPE_CODEC_LINK:
1686 return soc_tplg_pcm_dai_elems_load(tplg, hdr);
1687 case SND_SOC_TPLG_TYPE_MANIFEST: 1754 case SND_SOC_TPLG_TYPE_MANIFEST:
1688 return soc_tplg_manifest_load(tplg, hdr); 1755 return soc_tplg_manifest_load(tplg, hdr);
1689 default: 1756 default:
@@ -1841,9 +1908,10 @@ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
1841 remove_widget(comp, dobj, pass); 1908 remove_widget(comp, dobj, pass);
1842 break; 1909 break;
1843 case SND_SOC_DOBJ_PCM: 1910 case SND_SOC_DOBJ_PCM:
1911 remove_dai(comp, dobj, pass);
1912 break;
1844 case SND_SOC_DOBJ_DAI_LINK: 1913 case SND_SOC_DOBJ_DAI_LINK:
1845 case SND_SOC_DOBJ_CODEC_LINK: 1914 remove_link(comp, dobj, pass);
1846 remove_pcm_dai(comp, dobj, pass);
1847 break; 1915 break;
1848 default: 1916 default:
1849 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 1917 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
diff --git a/sound/soc/sunxi/Kconfig b/sound/soc/sunxi/Kconfig
index 84c72ec6ad73..ae42294ef688 100644
--- a/sound/soc/sunxi/Kconfig
+++ b/sound/soc/sunxi/Kconfig
@@ -8,4 +8,12 @@ config SND_SUN4I_CODEC
8 Select Y or M to add support for the Codec embedded in the Allwinner 8 Select Y or M to add support for the Codec embedded in the Allwinner
9 A10 and affiliated SoCs. 9 A10 and affiliated SoCs.
10 10
11config SND_SUN4I_SPDIF
12 tristate "Allwinner A10 SPDIF Support"
13 depends on OF
14 select SND_SOC_GENERIC_DMAENGINE_PCM
15 select REGMAP_MMIO
16 help
17 Say Y or M to add support for the S/PDIF audio block in the Allwinner
18 A10 and affiliated SoCs.
11endmenu 19endmenu
diff --git a/sound/soc/sunxi/Makefile b/sound/soc/sunxi/Makefile
index ea8a08c881d6..8f5e889667f1 100644
--- a/sound/soc/sunxi/Makefile
+++ b/sound/soc/sunxi/Makefile
@@ -1,2 +1,3 @@
1obj-$(CONFIG_SND_SUN4I_CODEC) += sun4i-codec.o 1obj-$(CONFIG_SND_SUN4I_CODEC) += sun4i-codec.o
2 2
3obj-$(CONFIG_SND_SUN4I_SPDIF) += sun4i-spdif.o
diff --git a/sound/soc/sunxi/sun4i-spdif.c b/sound/soc/sunxi/sun4i-spdif.c
new file mode 100644
index 000000000000..0b04fb02125c
--- /dev/null
+++ b/sound/soc/sunxi/sun4i-spdif.c
@@ -0,0 +1,550 @@
1/*
2 * ALSA SoC SPDIF Audio Layer
3 *
4 * Copyright 2015 Andrea Venturi <be17068@iperbole.bo.it>
5 * Copyright 2015 Marcus Cooper <codekipper@gmail.com>
6 *
7 * Based on the Allwinner SDK driver, released under the GPL.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
19
20#include <linux/clk.h>
21#include <linux/delay.h>
22#include <linux/device.h>
23#include <linux/kernel.h>
24#include <linux/init.h>
25#include <linux/regmap.h>
26#include <linux/of_address.h>
27#include <linux/of_device.h>
28#include <linux/ioport.h>
29#include <linux/module.h>
30#include <linux/platform_device.h>
31#include <linux/pm_runtime.h>
32#include <sound/dmaengine_pcm.h>
33#include <sound/pcm_params.h>
34#include <sound/soc.h>
35
36#define SUN4I_SPDIF_CTL (0x00)
37 #define SUN4I_SPDIF_CTL_MCLKDIV(v) ((v) << 4) /* v even */
38 #define SUN4I_SPDIF_CTL_MCLKOUTEN BIT(2)
39 #define SUN4I_SPDIF_CTL_GEN BIT(1)
40 #define SUN4I_SPDIF_CTL_RESET BIT(0)
41
42#define SUN4I_SPDIF_TXCFG (0x04)
43 #define SUN4I_SPDIF_TXCFG_SINGLEMOD BIT(31)
44 #define SUN4I_SPDIF_TXCFG_ASS BIT(17)
45 #define SUN4I_SPDIF_TXCFG_NONAUDIO BIT(16)
46 #define SUN4I_SPDIF_TXCFG_TXRATIO(v) ((v) << 4)
47 #define SUN4I_SPDIF_TXCFG_TXRATIO_MASK GENMASK(8, 4)
48 #define SUN4I_SPDIF_TXCFG_FMTRVD GENMASK(3, 2)
49 #define SUN4I_SPDIF_TXCFG_FMT16BIT (0 << 2)
50 #define SUN4I_SPDIF_TXCFG_FMT20BIT (1 << 2)
51 #define SUN4I_SPDIF_TXCFG_FMT24BIT (2 << 2)
52 #define SUN4I_SPDIF_TXCFG_CHSTMODE BIT(1)
53 #define SUN4I_SPDIF_TXCFG_TXEN BIT(0)
54
55#define SUN4I_SPDIF_RXCFG (0x08)
56 #define SUN4I_SPDIF_RXCFG_LOCKFLAG BIT(4)
57 #define SUN4I_SPDIF_RXCFG_CHSTSRC BIT(3)
58 #define SUN4I_SPDIF_RXCFG_CHSTCP BIT(1)
59 #define SUN4I_SPDIF_RXCFG_RXEN BIT(0)
60
61#define SUN4I_SPDIF_TXFIFO (0x0C)
62
63#define SUN4I_SPDIF_RXFIFO (0x10)
64
65#define SUN4I_SPDIF_FCTL (0x14)
66 #define SUN4I_SPDIF_FCTL_FIFOSRC BIT(31)
67 #define SUN4I_SPDIF_FCTL_FTX BIT(17)
68 #define SUN4I_SPDIF_FCTL_FRX BIT(16)
69 #define SUN4I_SPDIF_FCTL_TXTL(v) ((v) << 8)
70 #define SUN4I_SPDIF_FCTL_TXTL_MASK GENMASK(12, 8)
71 #define SUN4I_SPDIF_FCTL_RXTL(v) ((v) << 3)
72 #define SUN4I_SPDIF_FCTL_RXTL_MASK GENMASK(7, 3)
73 #define SUN4I_SPDIF_FCTL_TXIM BIT(2)
74 #define SUN4I_SPDIF_FCTL_RXOM(v) ((v) << 0)
75 #define SUN4I_SPDIF_FCTL_RXOM_MASK GENMASK(1, 0)
76
77#define SUN4I_SPDIF_FSTA (0x18)
78 #define SUN4I_SPDIF_FSTA_TXE BIT(14)
79 #define SUN4I_SPDIF_FSTA_TXECNTSHT (8)
80 #define SUN4I_SPDIF_FSTA_RXA BIT(6)
81 #define SUN4I_SPDIF_FSTA_RXACNTSHT (0)
82
83#define SUN4I_SPDIF_INT (0x1C)
84 #define SUN4I_SPDIF_INT_RXLOCKEN BIT(18)
85 #define SUN4I_SPDIF_INT_RXUNLOCKEN BIT(17)
86 #define SUN4I_SPDIF_INT_RXPARERREN BIT(16)
87 #define SUN4I_SPDIF_INT_TXDRQEN BIT(7)
88 #define SUN4I_SPDIF_INT_TXUIEN BIT(6)
89 #define SUN4I_SPDIF_INT_TXOIEN BIT(5)
90 #define SUN4I_SPDIF_INT_TXEIEN BIT(4)
91 #define SUN4I_SPDIF_INT_RXDRQEN BIT(2)
92 #define SUN4I_SPDIF_INT_RXOIEN BIT(1)
93 #define SUN4I_SPDIF_INT_RXAIEN BIT(0)
94
95#define SUN4I_SPDIF_ISTA (0x20)
96 #define SUN4I_SPDIF_ISTA_RXLOCKSTA BIT(18)
97 #define SUN4I_SPDIF_ISTA_RXUNLOCKSTA BIT(17)
98 #define SUN4I_SPDIF_ISTA_RXPARERRSTA BIT(16)
99 #define SUN4I_SPDIF_ISTA_TXUSTA BIT(6)
100 #define SUN4I_SPDIF_ISTA_TXOSTA BIT(5)
101 #define SUN4I_SPDIF_ISTA_TXESTA BIT(4)
102 #define SUN4I_SPDIF_ISTA_RXOSTA BIT(1)
103 #define SUN4I_SPDIF_ISTA_RXASTA BIT(0)
104
105#define SUN4I_SPDIF_TXCNT (0x24)
106
107#define SUN4I_SPDIF_RXCNT (0x28)
108
109#define SUN4I_SPDIF_TXCHSTA0 (0x2C)
110 #define SUN4I_SPDIF_TXCHSTA0_CLK(v) ((v) << 28)
111 #define SUN4I_SPDIF_TXCHSTA0_SAMFREQ(v) ((v) << 24)
112 #define SUN4I_SPDIF_TXCHSTA0_SAMFREQ_MASK GENMASK(27, 24)
113 #define SUN4I_SPDIF_TXCHSTA0_CHNUM(v) ((v) << 20)
114 #define SUN4I_SPDIF_TXCHSTA0_CHNUM_MASK GENMASK(23, 20)
115 #define SUN4I_SPDIF_TXCHSTA0_SRCNUM(v) ((v) << 16)
116 #define SUN4I_SPDIF_TXCHSTA0_CATACOD(v) ((v) << 8)
117 #define SUN4I_SPDIF_TXCHSTA0_MODE(v) ((v) << 6)
118 #define SUN4I_SPDIF_TXCHSTA0_EMPHASIS(v) ((v) << 3)
119 #define SUN4I_SPDIF_TXCHSTA0_CP BIT(2)
120 #define SUN4I_SPDIF_TXCHSTA0_AUDIO BIT(1)
121 #define SUN4I_SPDIF_TXCHSTA0_PRO BIT(0)
122
123#define SUN4I_SPDIF_TXCHSTA1 (0x30)
124 #define SUN4I_SPDIF_TXCHSTA1_CGMSA(v) ((v) << 8)
125 #define SUN4I_SPDIF_TXCHSTA1_ORISAMFREQ(v) ((v) << 4)
126 #define SUN4I_SPDIF_TXCHSTA1_ORISAMFREQ_MASK GENMASK(7, 4)
127 #define SUN4I_SPDIF_TXCHSTA1_SAMWORDLEN(v) ((v) << 1)
128 #define SUN4I_SPDIF_TXCHSTA1_MAXWORDLEN BIT(0)
129
130#define SUN4I_SPDIF_RXCHSTA0 (0x34)
131 #define SUN4I_SPDIF_RXCHSTA0_CLK(v) ((v) << 28)
132 #define SUN4I_SPDIF_RXCHSTA0_SAMFREQ(v) ((v) << 24)
133 #define SUN4I_SPDIF_RXCHSTA0_CHNUM(v) ((v) << 20)
134 #define SUN4I_SPDIF_RXCHSTA0_SRCNUM(v) ((v) << 16)
135 #define SUN4I_SPDIF_RXCHSTA0_CATACOD(v) ((v) << 8)
136 #define SUN4I_SPDIF_RXCHSTA0_MODE(v) ((v) << 6)
137 #define SUN4I_SPDIF_RXCHSTA0_EMPHASIS(v) ((v) << 3)
138 #define SUN4I_SPDIF_RXCHSTA0_CP BIT(2)
139 #define SUN4I_SPDIF_RXCHSTA0_AUDIO BIT(1)
140 #define SUN4I_SPDIF_RXCHSTA0_PRO BIT(0)
141
142#define SUN4I_SPDIF_RXCHSTA1 (0x38)
143 #define SUN4I_SPDIF_RXCHSTA1_CGMSA(v) ((v) << 8)
144 #define SUN4I_SPDIF_RXCHSTA1_ORISAMFREQ(v) ((v) << 4)
145 #define SUN4I_SPDIF_RXCHSTA1_SAMWORDLEN(v) ((v) << 1)
146 #define SUN4I_SPDIF_RXCHSTA1_MAXWORDLEN BIT(0)
147
148/* Defines for Sampling Frequency */
149#define SUN4I_SPDIF_SAMFREQ_44_1KHZ 0x0
150#define SUN4I_SPDIF_SAMFREQ_NOT_INDICATED 0x1
151#define SUN4I_SPDIF_SAMFREQ_48KHZ 0x2
152#define SUN4I_SPDIF_SAMFREQ_32KHZ 0x3
153#define SUN4I_SPDIF_SAMFREQ_22_05KHZ 0x4
154#define SUN4I_SPDIF_SAMFREQ_24KHZ 0x6
155#define SUN4I_SPDIF_SAMFREQ_88_2KHZ 0x8
156#define SUN4I_SPDIF_SAMFREQ_76_8KHZ 0x9
157#define SUN4I_SPDIF_SAMFREQ_96KHZ 0xa
158#define SUN4I_SPDIF_SAMFREQ_176_4KHZ 0xc
159#define SUN4I_SPDIF_SAMFREQ_192KHZ 0xe
160
161struct sun4i_spdif_dev {
162 struct platform_device *pdev;
163 struct clk *spdif_clk;
164 struct clk *apb_clk;
165 struct snd_soc_dai_driver cpu_dai_drv;
166 struct regmap *regmap;
167 struct snd_dmaengine_dai_dma_data dma_params_tx;
168};
169
170static void sun4i_spdif_configure(struct sun4i_spdif_dev *host)
171{
172 /* soft reset SPDIF */
173 regmap_write(host->regmap, SUN4I_SPDIF_CTL, SUN4I_SPDIF_CTL_RESET);
174
175 /* flush TX FIFO */
176 regmap_update_bits(host->regmap, SUN4I_SPDIF_FCTL,
177 SUN4I_SPDIF_FCTL_FTX, SUN4I_SPDIF_FCTL_FTX);
178
179 /* clear TX counter */
180 regmap_write(host->regmap, SUN4I_SPDIF_TXCNT, 0);
181}
182
183static void sun4i_snd_txctrl_on(struct snd_pcm_substream *substream,
184 struct sun4i_spdif_dev *host)
185{
186 if (substream->runtime->channels == 1)
187 regmap_update_bits(host->regmap, SUN4I_SPDIF_TXCFG,
188 SUN4I_SPDIF_TXCFG_SINGLEMOD,
189 SUN4I_SPDIF_TXCFG_SINGLEMOD);
190
191 /* SPDIF TX ENABLE */
192 regmap_update_bits(host->regmap, SUN4I_SPDIF_TXCFG,
193 SUN4I_SPDIF_TXCFG_TXEN, SUN4I_SPDIF_TXCFG_TXEN);
194
195 /* DRQ ENABLE */
196 regmap_update_bits(host->regmap, SUN4I_SPDIF_INT,
197 SUN4I_SPDIF_INT_TXDRQEN, SUN4I_SPDIF_INT_TXDRQEN);
198
199 /* Global enable */
200 regmap_update_bits(host->regmap, SUN4I_SPDIF_CTL,
201 SUN4I_SPDIF_CTL_GEN, SUN4I_SPDIF_CTL_GEN);
202}
203
204static void sun4i_snd_txctrl_off(struct snd_pcm_substream *substream,
205 struct sun4i_spdif_dev *host)
206{
207 /* SPDIF TX DISABLE */
208 regmap_update_bits(host->regmap, SUN4I_SPDIF_TXCFG,
209 SUN4I_SPDIF_TXCFG_TXEN, 0);
210
211 /* DRQ DISABLE */
212 regmap_update_bits(host->regmap, SUN4I_SPDIF_INT,
213 SUN4I_SPDIF_INT_TXDRQEN, 0);
214
215 /* Global disable */
216 regmap_update_bits(host->regmap, SUN4I_SPDIF_CTL,
217 SUN4I_SPDIF_CTL_GEN, 0);
218}
219
220static int sun4i_spdif_startup(struct snd_pcm_substream *substream,
221 struct snd_soc_dai *cpu_dai)
222{
223 struct snd_soc_pcm_runtime *rtd = substream->private_data;
224 struct sun4i_spdif_dev *host = snd_soc_dai_get_drvdata(rtd->cpu_dai);
225
226 if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
227 return -EINVAL;
228
229 sun4i_spdif_configure(host);
230
231 return 0;
232}
233
234static int sun4i_spdif_hw_params(struct snd_pcm_substream *substream,
235 struct snd_pcm_hw_params *params,
236 struct snd_soc_dai *cpu_dai)
237{
238 int ret = 0;
239 int fmt;
240 unsigned long rate = params_rate(params);
241 u32 mclk_div = 0;
242 unsigned int mclk = 0;
243 u32 reg_val;
244 struct sun4i_spdif_dev *host = snd_soc_dai_get_drvdata(cpu_dai);
245 struct platform_device *pdev = host->pdev;
246
247 /* Add the PCM and raw data select interface */
248 switch (params_channels(params)) {
249 case 1: /* PCM mode */
250 case 2:
251 fmt = 0;
252 break;
253 case 4: /* raw data mode */
254 fmt = SUN4I_SPDIF_TXCFG_NONAUDIO;
255 break;
256 default:
257 return -EINVAL;
258 }
259
260 switch (params_format(params)) {
261 case SNDRV_PCM_FORMAT_S16_LE:
262 fmt |= SUN4I_SPDIF_TXCFG_FMT16BIT;
263 break;
264 case SNDRV_PCM_FORMAT_S20_3LE:
265 fmt |= SUN4I_SPDIF_TXCFG_FMT20BIT;
266 break;
267 case SNDRV_PCM_FORMAT_S24_LE:
268 fmt |= SUN4I_SPDIF_TXCFG_FMT24BIT;
269 break;
270 default:
271 return -EINVAL;
272 }
273
274 switch (rate) {
275 case 22050:
276 case 44100:
277 case 88200:
278 case 176400:
279 mclk = 22579200;
280 break;
281 case 24000:
282 case 32000:
283 case 48000:
284 case 96000:
285 case 192000:
286 mclk = 24576000;
287 break;
288 default:
289 return -EINVAL;
290 }
291
292 ret = clk_set_rate(host->spdif_clk, mclk);
293 if (ret < 0) {
294 dev_err(&pdev->dev,
295 "Setting SPDIF clock rate for %d Hz failed!\n", mclk);
296 return ret;
297 }
298
299 regmap_update_bits(host->regmap, SUN4I_SPDIF_FCTL,
300 SUN4I_SPDIF_FCTL_TXIM, SUN4I_SPDIF_FCTL_TXIM);
301
302 switch (rate) {
303 case 22050:
304 case 24000:
305 mclk_div = 8;
306 break;
307 case 32000:
308 mclk_div = 6;
309 break;
310 case 44100:
311 case 48000:
312 mclk_div = 4;
313 break;
314 case 88200:
315 case 96000:
316 mclk_div = 2;
317 break;
318 case 176400:
319 case 192000:
320 mclk_div = 1;
321 break;
322 default:
323 return -EINVAL;
324 }
325
326 reg_val = 0;
327 reg_val |= SUN4I_SPDIF_TXCFG_ASS;
328 reg_val |= fmt; /* set non audio and bit depth */
329 reg_val |= SUN4I_SPDIF_TXCFG_CHSTMODE;
330 reg_val |= SUN4I_SPDIF_TXCFG_TXRATIO(mclk_div - 1);
331 regmap_write(host->regmap, SUN4I_SPDIF_TXCFG, reg_val);
332
333 return 0;
334}
335
336static int sun4i_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
337 struct snd_soc_dai *dai)
338{
339 int ret = 0;
340 struct sun4i_spdif_dev *host = snd_soc_dai_get_drvdata(dai);
341
342 if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
343 return -EINVAL;
344
345 switch (cmd) {
346 case SNDRV_PCM_TRIGGER_START:
347 case SNDRV_PCM_TRIGGER_RESUME:
348 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
349 sun4i_snd_txctrl_on(substream, host);
350 break;
351
352 case SNDRV_PCM_TRIGGER_STOP:
353 case SNDRV_PCM_TRIGGER_SUSPEND:
354 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
355 sun4i_snd_txctrl_off(substream, host);
356 break;
357
358 default:
359 ret = -EINVAL;
360 break;
361 }
362 return ret;
363}
364
365static int sun4i_spdif_soc_dai_probe(struct snd_soc_dai *dai)
366{
367 struct sun4i_spdif_dev *host = snd_soc_dai_get_drvdata(dai);
368
369 snd_soc_dai_init_dma_data(dai, &host->dma_params_tx, NULL);
370 return 0;
371}
372
373static const struct snd_soc_dai_ops sun4i_spdif_dai_ops = {
374 .startup = sun4i_spdif_startup,
375 .trigger = sun4i_spdif_trigger,
376 .hw_params = sun4i_spdif_hw_params,
377};
378
379static const struct regmap_config sun4i_spdif_regmap_config = {
380 .reg_bits = 32,
381 .reg_stride = 4,
382 .val_bits = 32,
383 .max_register = SUN4I_SPDIF_RXCHSTA1,
384};
385
386#define SUN4I_RATES SNDRV_PCM_RATE_8000_192000
387
388#define SUN4I_FORMATS (SNDRV_PCM_FORMAT_S16_LE | \
389 SNDRV_PCM_FORMAT_S20_3LE | \
390 SNDRV_PCM_FORMAT_S24_LE)
391
392static struct snd_soc_dai_driver sun4i_spdif_dai = {
393 .playback = {
394 .channels_min = 1,
395 .channels_max = 2,
396 .rates = SUN4I_RATES,
397 .formats = SUN4I_FORMATS,
398 },
399 .probe = sun4i_spdif_soc_dai_probe,
400 .ops = &sun4i_spdif_dai_ops,
401 .name = "spdif",
402};
403
404static const struct snd_soc_dapm_widget dit_widgets[] = {
405 SND_SOC_DAPM_OUTPUT("spdif-out"),
406};
407
408static const struct snd_soc_dapm_route dit_routes[] = {
409 { "spdif-out", NULL, "Playback" },
410};
411
412static const struct of_device_id sun4i_spdif_of_match[] = {
413 { .compatible = "allwinner,sun4i-a10-spdif", },
414 { /* sentinel */ }
415};
416MODULE_DEVICE_TABLE(of, sun4i_spdif_of_match);
417
418static const struct snd_soc_component_driver sun4i_spdif_component = {
419 .name = "sun4i-spdif",
420};
421
422static int sun4i_spdif_runtime_suspend(struct device *dev)
423{
424 struct sun4i_spdif_dev *host = dev_get_drvdata(dev);
425
426 clk_disable_unprepare(host->spdif_clk);
427 clk_disable_unprepare(host->apb_clk);
428
429 return 0;
430}
431
432static int sun4i_spdif_runtime_resume(struct device *dev)
433{
434 struct sun4i_spdif_dev *host = dev_get_drvdata(dev);
435
436 clk_prepare_enable(host->spdif_clk);
437 clk_prepare_enable(host->apb_clk);
438
439 return 0;
440}
441
442static int sun4i_spdif_probe(struct platform_device *pdev)
443{
444 struct sun4i_spdif_dev *host;
445 struct resource *res;
446 int ret;
447 void __iomem *base;
448
449 dev_dbg(&pdev->dev, "Entered %s\n", __func__);
450
451 host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
452 if (!host)
453 return -ENOMEM;
454
455 host->pdev = pdev;
456
457 /* Initialize this copy of the CPU DAI driver structure */
458 memcpy(&host->cpu_dai_drv, &sun4i_spdif_dai, sizeof(sun4i_spdif_dai));
459 host->cpu_dai_drv.name = dev_name(&pdev->dev);
460
461 /* Get the addresses */
462 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
463 base = devm_ioremap_resource(&pdev->dev, res);
464 if (IS_ERR(base))
465 return PTR_ERR(base);
466
467 host->regmap = devm_regmap_init_mmio(&pdev->dev, base,
468 &sun4i_spdif_regmap_config);
469
470 /* Clocks */
471 host->apb_clk = devm_clk_get(&pdev->dev, "apb");
472 if (IS_ERR(host->apb_clk)) {
473 dev_err(&pdev->dev, "failed to get a apb clock.\n");
474 return PTR_ERR(host->apb_clk);
475 }
476
477 host->spdif_clk = devm_clk_get(&pdev->dev, "spdif");
478 if (IS_ERR(host->spdif_clk)) {
479 dev_err(&pdev->dev, "failed to get a spdif clock.\n");
480 ret = PTR_ERR(host->spdif_clk);
481 goto err_disable_apb_clk;
482 }
483
484 host->dma_params_tx.addr = res->start + SUN4I_SPDIF_TXFIFO;
485 host->dma_params_tx.maxburst = 4;
486 host->dma_params_tx.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
487
488 platform_set_drvdata(pdev, host);
489
490 ret = devm_snd_soc_register_component(&pdev->dev,
491 &sun4i_spdif_component, &sun4i_spdif_dai, 1);
492 if (ret)
493 goto err_disable_apb_clk;
494
495 pm_runtime_enable(&pdev->dev);
496 if (!pm_runtime_enabled(&pdev->dev)) {
497 ret = sun4i_spdif_runtime_resume(&pdev->dev);
498 if (ret)
499 goto err_unregister;
500 }
501
502 ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
503 if (ret)
504 goto err_suspend;
505 return 0;
506err_suspend:
507 if (!pm_runtime_status_suspended(&pdev->dev))
508 sun4i_spdif_runtime_suspend(&pdev->dev);
509err_unregister:
510 pm_runtime_disable(&pdev->dev);
511 snd_soc_unregister_component(&pdev->dev);
512err_disable_apb_clk:
513 clk_disable_unprepare(host->apb_clk);
514 return ret;
515}
516
517static int sun4i_spdif_remove(struct platform_device *pdev)
518{
519 pm_runtime_disable(&pdev->dev);
520 if (!pm_runtime_status_suspended(&pdev->dev))
521 sun4i_spdif_runtime_suspend(&pdev->dev);
522
523 snd_soc_unregister_platform(&pdev->dev);
524 snd_soc_unregister_component(&pdev->dev);
525
526 return 0;
527}
528
529static const struct dev_pm_ops sun4i_spdif_pm = {
530 SET_RUNTIME_PM_OPS(sun4i_spdif_runtime_suspend,
531 sun4i_spdif_runtime_resume, NULL)
532};
533
534static struct platform_driver sun4i_spdif_driver = {
535 .driver = {
536 .name = "sun4i-spdif",
537 .of_match_table = of_match_ptr(sun4i_spdif_of_match),
538 .pm = &sun4i_spdif_pm,
539 },
540 .probe = sun4i_spdif_probe,
541 .remove = sun4i_spdif_remove,
542};
543
544module_platform_driver(sun4i_spdif_driver);
545
546MODULE_AUTHOR("Marcus Cooper <codekipper@gmail.com>");
547MODULE_AUTHOR("Andrea Venturi <be17068@iperbole.bo.it>");
548MODULE_DESCRIPTION("Allwinner sun4i SPDIF SoC Interface");
549MODULE_LICENSE("GPL");
550MODULE_ALIAS("platform:sun4i-spdif");
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-01 14:37:51 -0500