2 * Renesas R-Car SRU/SCU/SSIU/SSI support
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
8 * Kuninori Morimoto <morimoto.kuninori@renesas.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
16 * Renesas R-Car sound device structure
20 * SRU : Sound Routing Unit
21 * - SRC : Sampling Rate Converter
23 * - CTU : Channel Count Conversion Unit
25 * - DVC : Digital Volume and Mute Function
26 * - SSI : Serial Sound Interface
30 * SCU : Sampling Rate Converter Unit
31 * - SRC : Sampling Rate Converter
33 * - CTU : Channel Count Conversion Unit
35 * - DVC : Digital Volume and Mute Function
36 * SSIU : Serial Sound Interface Unit
37 * - SSI : Serial Sound Interface
45 * | ** this depends on Gen1/Gen2
49 * | ** these depend on data path
50 * | ** gen and platform data control it
54 * | +- playback -> [mod] -> [mod] -> [mod] -> ...
57 * | +- capture -> [mod] -> [mod] -> [mod] -> ...
61 * | +- playback -> [mod] -> [mod] -> [mod] -> ...
64 * | +- capture -> [mod] -> [mod] -> [mod] -> ...
67 * | ** these control ssi
76 * | ** these control src
86 * for_each_rsnd_dai(xx, priv, xx)
87 * rdai[0] => rdai[1] => rdai[2] => ...
89 * for_each_rsnd_mod(xx, rdai, xx)
90 * [mod] => [mod] => [mod] => ...
92 * rsnd_dai_call(xxx, fn )
93 * [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
96 #include <linux/pm_runtime.h>
97 #include <linux/shdma-base.h>
100 #define RSND_RATES SNDRV_PCM_RATE_8000_96000
101 #define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
103 static struct rsnd_of_data rsnd_of_data_gen1
= {
107 static struct rsnd_of_data rsnd_of_data_gen2
= {
111 static struct of_device_id rsnd_of_match
[] = {
112 { .compatible
= "renesas,rcar_sound-gen1", .data
= &rsnd_of_data_gen1
},
113 { .compatible
= "renesas,rcar_sound-gen2", .data
= &rsnd_of_data_gen2
},
116 MODULE_DEVICE_TABLE(of
, rsnd_of_match
);
119 * rsnd_platform functions
121 #define rsnd_platform_call(priv, dai, func, param...) \
122 (!(priv->info->func) ? 0 : \
123 priv->info->func(param))
125 #define rsnd_is_enable_path(io, name) \
126 ((io)->info ? (io)->info->name : NULL)
127 #define rsnd_info_id(priv, io, name) \
128 ((io)->info->name - priv->info->name##_info)
133 char *rsnd_mod_name(struct rsnd_mod
*mod
)
135 if (!mod
|| !mod
->ops
)
138 return mod
->ops
->name
;
141 void rsnd_mod_init(struct rsnd_priv
*priv
,
142 struct rsnd_mod
*mod
,
143 struct rsnd_mod_ops
*ops
,
144 enum rsnd_mod_type type
,
156 static void __rsnd_dma_start(struct rsnd_dma
*dma
);
157 static void rsnd_dma_continue(struct rsnd_dma
*dma
)
159 /* push next A or B plane */
160 dma
->submit_loop
= 1;
161 schedule_work(&dma
->work
);
164 void rsnd_dma_start(struct rsnd_dma
*dma
)
166 /* push both A and B plane*/
168 dma
->submit_loop
= 2;
169 __rsnd_dma_start(dma
);
172 void rsnd_dma_stop(struct rsnd_dma
*dma
)
174 dma
->submit_loop
= 0;
175 cancel_work_sync(&dma
->work
);
176 dmaengine_terminate_all(dma
->chan
);
179 static void rsnd_dma_complete(void *data
)
181 struct rsnd_dma
*dma
= (struct rsnd_dma
*)data
;
182 struct rsnd_mod
*mod
= rsnd_dma_to_mod(dma
);
183 struct rsnd_priv
*priv
= rsnd_mod_to_priv(rsnd_dma_to_mod(dma
));
184 struct rsnd_dai_stream
*io
= rsnd_mod_to_io(mod
);
187 rsnd_lock(priv
, flags
);
190 * Renesas sound Gen1 needs 1 DMAC,
192 * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
193 * But, Audio-DMAC-peri-peri doesn't have interrupt,
194 * and this driver is assuming that here.
196 * If Audio-DMAC-peri-peri has interrpt,
197 * rsnd_dai_pointer_update() will be called twice,
198 * ant it will breaks io->byte_pos
201 rsnd_dai_pointer_update(io
, io
->byte_per_period
);
203 if (dma
->submit_loop
)
204 rsnd_dma_continue(dma
);
206 rsnd_unlock(priv
, flags
);
209 static void __rsnd_dma_start(struct rsnd_dma
*dma
)
211 struct rsnd_mod
*mod
= rsnd_dma_to_mod(dma
);
212 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
213 struct rsnd_dai_stream
*io
= rsnd_mod_to_io(mod
);
214 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
215 struct device
*dev
= rsnd_priv_to_dev(priv
);
216 struct dma_async_tx_descriptor
*desc
;
218 size_t len
= io
->byte_per_period
;
221 for (i
= 0; i
< dma
->submit_loop
; i
++) {
223 buf
= runtime
->dma_addr
+
224 rsnd_dai_pointer_offset(io
, dma
->offset
+ len
);
227 desc
= dmaengine_prep_slave_single(
228 dma
->chan
, buf
, len
, dma
->dir
,
229 DMA_PREP_INTERRUPT
| DMA_CTRL_ACK
);
231 dev_err(dev
, "dmaengine_prep_slave_sg() fail\n");
235 desc
->callback
= rsnd_dma_complete
;
236 desc
->callback_param
= dma
;
238 if (dmaengine_submit(desc
) < 0) {
239 dev_err(dev
, "dmaengine_submit() fail\n");
243 dma_async_issue_pending(dma
->chan
);
247 static void rsnd_dma_do_work(struct work_struct
*work
)
249 struct rsnd_dma
*dma
= container_of(work
, struct rsnd_dma
, work
);
251 __rsnd_dma_start(dma
);
254 int rsnd_dma_available(struct rsnd_dma
*dma
)
259 int rsnd_dma_init(struct rsnd_priv
*priv
, struct rsnd_dma
*dma
,
262 struct device
*dev
= rsnd_priv_to_dev(priv
);
263 struct dma_slave_config cfg
;
268 dev_err(dev
, "it already has dma channel\n");
273 dma_cap_set(DMA_SLAVE
, mask
);
275 dma
->chan
= dma_request_slave_channel_compat(mask
, shdma_chan_filter
,
277 is_play
? "tx" : "rx");
279 dev_err(dev
, "can't get dma channel\n");
284 cfg
.dst_addr
= 0; /* use default addr when playback */
285 cfg
.src_addr
= 0; /* use default addr when capture */
286 cfg
.direction
= is_play
? DMA_MEM_TO_DEV
: DMA_DEV_TO_MEM
;
288 ret
= dmaengine_slave_config(dma
->chan
, &cfg
);
290 goto rsnd_dma_init_err
;
292 dma
->dir
= is_play
? DMA_TO_DEVICE
: DMA_FROM_DEVICE
;
293 INIT_WORK(&dma
->work
, rsnd_dma_do_work
);
298 rsnd_dma_quit(priv
, dma
);
303 void rsnd_dma_quit(struct rsnd_priv
*priv
,
304 struct rsnd_dma
*dma
)
307 dma_release_channel(dma
->chan
);
315 #define __rsnd_mod_call(mod, func, rdai, io) \
317 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
318 struct device *dev = rsnd_priv_to_dev(priv); \
319 dev_dbg(dev, "%s [%d] %s\n", \
320 rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \
321 (mod)->ops->func(mod, rdai, io); \
324 #define rsnd_mod_call(mod, func, rdai, io) \
325 (!(mod) ? -ENODEV : \
326 !((mod)->ops->func) ? 0 : \
327 __rsnd_mod_call(mod, func, (rdai), (io)))
329 #define rsnd_dai_call(rdai, io, fn) \
331 struct rsnd_mod *mod; \
333 for (i = 0; i < RSND_MOD_MAX; i++) { \
334 mod = (io)->mod[i]; \
337 ret = rsnd_mod_call(mod, fn, (rdai), (io)); \
344 static int rsnd_dai_connect(struct rsnd_mod
*mod
,
345 struct rsnd_dai_stream
*io
)
350 if (io
->mod
[mod
->type
]) {
351 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
352 struct device
*dev
= rsnd_priv_to_dev(priv
);
354 dev_err(dev
, "%s%d is not empty\n",
360 io
->mod
[mod
->type
] = mod
;
366 int rsnd_dai_id(struct rsnd_priv
*priv
, struct rsnd_dai
*rdai
)
368 int id
= rdai
- priv
->rdai
;
370 if ((id
< 0) || (id
>= rsnd_rdai_nr(priv
)))
376 struct rsnd_dai
*rsnd_dai_get(struct rsnd_priv
*priv
, int id
)
378 if ((id
< 0) || (id
>= rsnd_rdai_nr(priv
)))
381 return priv
->rdai
+ id
;
384 static struct rsnd_dai
*rsnd_dai_to_rdai(struct snd_soc_dai
*dai
)
386 struct rsnd_priv
*priv
= snd_soc_dai_get_drvdata(dai
);
388 return rsnd_dai_get(priv
, dai
->id
);
391 int rsnd_dai_is_play(struct rsnd_dai
*rdai
, struct rsnd_dai_stream
*io
)
393 return &rdai
->playback
== io
;
397 * rsnd_soc_dai functions
399 int rsnd_dai_pointer_offset(struct rsnd_dai_stream
*io
, int additional
)
401 struct snd_pcm_substream
*substream
= io
->substream
;
402 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
403 int pos
= io
->byte_pos
+ additional
;
405 pos
%= (runtime
->periods
* io
->byte_per_period
);
410 void rsnd_dai_pointer_update(struct rsnd_dai_stream
*io
, int byte
)
412 io
->byte_pos
+= byte
;
414 if (io
->byte_pos
>= io
->next_period_byte
) {
415 struct snd_pcm_substream
*substream
= io
->substream
;
416 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
419 io
->next_period_byte
+= io
->byte_per_period
;
421 if (io
->period_pos
>= runtime
->periods
) {
424 io
->next_period_byte
= io
->byte_per_period
;
427 snd_pcm_period_elapsed(substream
);
431 static int rsnd_dai_stream_init(struct rsnd_dai_stream
*io
,
432 struct snd_pcm_substream
*substream
)
434 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
436 io
->substream
= substream
;
439 io
->byte_per_period
= runtime
->period_size
*
441 samples_to_bytes(runtime
, 1);
442 io
->next_period_byte
= io
->byte_per_period
;
448 struct snd_soc_dai
*rsnd_substream_to_dai(struct snd_pcm_substream
*substream
)
450 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
456 struct rsnd_dai_stream
*rsnd_rdai_to_io(struct rsnd_dai
*rdai
,
457 struct snd_pcm_substream
*substream
)
459 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
460 return &rdai
->playback
;
462 return &rdai
->capture
;
465 static int rsnd_soc_dai_trigger(struct snd_pcm_substream
*substream
, int cmd
,
466 struct snd_soc_dai
*dai
)
468 struct rsnd_priv
*priv
= snd_soc_dai_get_drvdata(dai
);
469 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
470 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
471 struct rsnd_mod
*mod
= rsnd_ssi_mod_get_frm_dai(priv
,
472 rsnd_dai_id(priv
, rdai
),
473 rsnd_dai_is_play(rdai
, io
));
474 int ssi_id
= rsnd_mod_id(mod
);
478 rsnd_lock(priv
, flags
);
481 case SNDRV_PCM_TRIGGER_START
:
482 ret
= rsnd_dai_stream_init(io
, substream
);
484 goto dai_trigger_end
;
486 ret
= rsnd_platform_call(priv
, dai
, start
, ssi_id
);
488 goto dai_trigger_end
;
490 ret
= rsnd_dai_call(rdai
, io
, init
);
492 goto dai_trigger_end
;
494 ret
= rsnd_dai_call(rdai
, io
, start
);
496 goto dai_trigger_end
;
498 case SNDRV_PCM_TRIGGER_STOP
:
499 ret
= rsnd_dai_call(rdai
, io
, stop
);
501 goto dai_trigger_end
;
503 ret
= rsnd_dai_call(rdai
, io
, quit
);
505 goto dai_trigger_end
;
507 ret
= rsnd_platform_call(priv
, dai
, stop
, ssi_id
);
509 goto dai_trigger_end
;
516 rsnd_unlock(priv
, flags
);
521 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
523 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
525 /* set master/slave audio interface */
526 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
527 case SND_SOC_DAIFMT_CBM_CFM
:
528 rdai
->clk_master
= 0;
530 case SND_SOC_DAIFMT_CBS_CFS
:
531 rdai
->clk_master
= 1; /* codec is slave, cpu is master */
537 /* set clock inversion */
538 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
539 case SND_SOC_DAIFMT_NB_IF
:
540 rdai
->bit_clk_inv
= 0;
541 rdai
->frm_clk_inv
= 1;
543 case SND_SOC_DAIFMT_IB_NF
:
544 rdai
->bit_clk_inv
= 1;
545 rdai
->frm_clk_inv
= 0;
547 case SND_SOC_DAIFMT_IB_IF
:
548 rdai
->bit_clk_inv
= 1;
549 rdai
->frm_clk_inv
= 1;
551 case SND_SOC_DAIFMT_NB_NF
:
553 rdai
->bit_clk_inv
= 0;
554 rdai
->frm_clk_inv
= 0;
559 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
560 case SND_SOC_DAIFMT_I2S
:
562 rdai
->data_alignment
= 0;
564 case SND_SOC_DAIFMT_LEFT_J
:
566 rdai
->data_alignment
= 0;
568 case SND_SOC_DAIFMT_RIGHT_J
:
570 rdai
->data_alignment
= 1;
577 static const struct snd_soc_dai_ops rsnd_soc_dai_ops
= {
578 .trigger
= rsnd_soc_dai_trigger
,
579 .set_fmt
= rsnd_soc_dai_set_fmt
,
582 static int rsnd_path_init(struct rsnd_priv
*priv
,
583 struct rsnd_dai
*rdai
,
584 struct rsnd_dai_stream
*io
)
586 struct rsnd_mod
*mod
;
587 struct rsnd_dai_platform_info
*dai_info
= rdai
->info
;
593 * Gen1 is created by SRU/SSI, and this SRU is base module of
594 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
597 * Gen1 SRU = Gen2 SCU + SSIU + etc
599 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
603 if (rsnd_is_enable_path(io
, ssi
))
604 ssi_id
= rsnd_info_id(priv
, io
, ssi
);
605 if (rsnd_is_enable_path(io
, src
))
606 src_id
= rsnd_info_id(priv
, io
, src
);
609 mod
= rsnd_ssi_mod_get_frm_dai(priv
,
610 rsnd_dai_id(priv
, rdai
),
611 rsnd_dai_is_play(rdai
, io
));
614 ssi_id
= src_id
= rsnd_mod_id(mod
);
621 mod
= rsnd_src_mod_get(priv
, src_id
);
622 ret
= rsnd_dai_connect(mod
, io
);
629 mod
= rsnd_ssi_mod_get(priv
, ssi_id
);
630 ret
= rsnd_dai_connect(mod
, io
);
638 static void rsnd_of_parse_dai(struct platform_device
*pdev
,
639 const struct rsnd_of_data
*of_data
,
640 struct rsnd_priv
*priv
)
642 struct device_node
*dai_node
, *dai_np
;
643 struct device_node
*ssi_node
, *ssi_np
;
644 struct device_node
*src_node
, *src_np
;
645 struct device_node
*playback
, *capture
;
646 struct rsnd_dai_platform_info
*dai_info
;
647 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
648 struct device
*dev
= &pdev
->dev
;
650 int dai_i
, ssi_i
, src_i
;
655 dai_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dai");
659 nr
= of_get_child_count(dai_node
);
663 dai_info
= devm_kzalloc(dev
,
664 sizeof(struct rsnd_dai_platform_info
) * nr
,
667 dev_err(dev
, "dai info allocation error\n");
671 info
->dai_info_nr
= nr
;
672 info
->dai_info
= dai_info
;
674 ssi_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,ssi");
675 src_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,src");
677 #define mod_parse(name) \
679 struct rsnd_##name##_platform_info *name##_info; \
682 for_each_child_of_node(name##_node, name##_np) { \
683 name##_info = info->name##_info + name##_i; \
685 if (name##_np == playback) \
686 dai_info->playback.name = name##_info; \
687 if (name##_np == capture) \
688 dai_info->capture.name = name##_info; \
698 for_each_child_of_node(dai_node
, dai_np
) {
699 dai_info
= info
->dai_info
+ dai_i
;
703 playback
= of_parse_phandle(dai_np
, "playback", i
);
704 capture
= of_parse_phandle(dai_np
, "capture", i
);
706 if (!playback
&& !capture
)
713 of_node_put(playback
);
715 of_node_put(capture
);
722 static int rsnd_dai_probe(struct platform_device
*pdev
,
723 const struct rsnd_of_data
*of_data
,
724 struct rsnd_priv
*priv
)
726 struct snd_soc_dai_driver
*drv
;
727 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
728 struct rsnd_dai
*rdai
;
729 struct rsnd_mod
*pmod
, *cmod
;
730 struct device
*dev
= rsnd_priv_to_dev(priv
);
734 rsnd_of_parse_dai(pdev
, of_data
, priv
);
737 * dai_nr should be set via dai_info_nr,
738 * but allow it to keeping compatible
740 dai_nr
= info
->dai_info_nr
;
743 for (dai_nr
= 0; dai_nr
< 32; dai_nr
++) {
744 pmod
= rsnd_ssi_mod_get_frm_dai(priv
, dai_nr
, 1);
745 cmod
= rsnd_ssi_mod_get_frm_dai(priv
, dai_nr
, 0);
753 dev_err(dev
, "no dai\n");
757 drv
= devm_kzalloc(dev
, sizeof(*drv
) * dai_nr
, GFP_KERNEL
);
758 rdai
= devm_kzalloc(dev
, sizeof(*rdai
) * dai_nr
, GFP_KERNEL
);
760 dev_err(dev
, "dai allocate failed\n");
764 priv
->rdai_nr
= dai_nr
;
768 for (i
= 0; i
< dai_nr
; i
++) {
770 rdai
[i
].info
= &info
->dai_info
[i
];
772 pmod
= rsnd_ssi_mod_get_frm_dai(priv
, i
, 1);
773 cmod
= rsnd_ssi_mod_get_frm_dai(priv
, i
, 0);
778 snprintf(rdai
[i
].name
, RSND_DAI_NAME_SIZE
, "rsnd-dai.%d", i
);
781 * init snd_soc_dai_driver
783 drv
[i
].name
= rdai
[i
].name
;
784 drv
[i
].ops
= &rsnd_soc_dai_ops
;
786 drv
[i
].playback
.rates
= RSND_RATES
;
787 drv
[i
].playback
.formats
= RSND_FMTS
;
788 drv
[i
].playback
.channels_min
= 2;
789 drv
[i
].playback
.channels_max
= 2;
792 rdai
[i
].playback
.info
= &info
->dai_info
[i
].playback
;
793 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].playback
);
796 drv
[i
].capture
.rates
= RSND_RATES
;
797 drv
[i
].capture
.formats
= RSND_FMTS
;
798 drv
[i
].capture
.channels_min
= 2;
799 drv
[i
].capture
.channels_max
= 2;
802 rdai
[i
].capture
.info
= &info
->dai_info
[i
].capture
;
803 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].capture
);
806 dev_dbg(dev
, "%s (%s/%s)\n", rdai
[i
].name
,
807 pmod
? "play" : " -- ",
808 cmod
? "capture" : " -- ");
817 static struct snd_pcm_hardware rsnd_pcm_hardware
= {
818 .info
= SNDRV_PCM_INFO_INTERLEAVED
|
819 SNDRV_PCM_INFO_MMAP
|
820 SNDRV_PCM_INFO_MMAP_VALID
|
821 SNDRV_PCM_INFO_PAUSE
,
822 .buffer_bytes_max
= 64 * 1024,
823 .period_bytes_min
= 32,
824 .period_bytes_max
= 8192,
830 static int rsnd_pcm_open(struct snd_pcm_substream
*substream
)
832 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
835 snd_soc_set_runtime_hwparams(substream
, &rsnd_pcm_hardware
);
837 ret
= snd_pcm_hw_constraint_integer(runtime
,
838 SNDRV_PCM_HW_PARAM_PERIODS
);
843 static int rsnd_hw_params(struct snd_pcm_substream
*substream
,
844 struct snd_pcm_hw_params
*hw_params
)
846 return snd_pcm_lib_malloc_pages(substream
,
847 params_buffer_bytes(hw_params
));
850 static snd_pcm_uframes_t
rsnd_pointer(struct snd_pcm_substream
*substream
)
852 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
853 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
854 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
855 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
857 return bytes_to_frames(runtime
, io
->byte_pos
);
860 static struct snd_pcm_ops rsnd_pcm_ops
= {
861 .open
= rsnd_pcm_open
,
862 .ioctl
= snd_pcm_lib_ioctl
,
863 .hw_params
= rsnd_hw_params
,
864 .hw_free
= snd_pcm_lib_free_pages
,
865 .pointer
= rsnd_pointer
,
872 #define PREALLOC_BUFFER (32 * 1024)
873 #define PREALLOC_BUFFER_MAX (32 * 1024)
875 static int rsnd_pcm_new(struct snd_soc_pcm_runtime
*rtd
)
877 return snd_pcm_lib_preallocate_pages_for_all(
880 rtd
->card
->snd_card
->dev
,
881 PREALLOC_BUFFER
, PREALLOC_BUFFER_MAX
);
884 static void rsnd_pcm_free(struct snd_pcm
*pcm
)
886 snd_pcm_lib_preallocate_free_for_all(pcm
);
889 static struct snd_soc_platform_driver rsnd_soc_platform
= {
890 .ops
= &rsnd_pcm_ops
,
891 .pcm_new
= rsnd_pcm_new
,
892 .pcm_free
= rsnd_pcm_free
,
895 static const struct snd_soc_component_driver rsnd_soc_component
= {
902 static int rsnd_probe(struct platform_device
*pdev
)
904 struct rcar_snd_info
*info
;
905 struct rsnd_priv
*priv
;
906 struct device
*dev
= &pdev
->dev
;
907 struct rsnd_dai
*rdai
;
908 const struct of_device_id
*of_id
= of_match_device(rsnd_of_match
, dev
);
909 const struct rsnd_of_data
*of_data
;
910 int (*probe_func
[])(struct platform_device
*pdev
,
911 const struct rsnd_of_data
*of_data
,
912 struct rsnd_priv
*priv
) = {
924 info
= devm_kzalloc(&pdev
->dev
,
925 sizeof(struct rcar_snd_info
), GFP_KERNEL
);
926 of_data
= of_id
->data
;
928 info
= pdev
->dev
.platform_data
;
932 dev_err(dev
, "driver needs R-Car sound information\n");
939 priv
= devm_kzalloc(dev
, sizeof(*priv
), GFP_KERNEL
);
941 dev_err(dev
, "priv allocate failed\n");
947 spin_lock_init(&priv
->lock
);
952 for (i
= 0; i
< ARRAY_SIZE(probe_func
); i
++) {
953 ret
= probe_func
[i
](pdev
, of_data
, priv
);
958 for_each_rsnd_dai(rdai
, priv
, i
) {
959 ret
= rsnd_dai_call(rdai
, &rdai
->playback
, probe
);
963 ret
= rsnd_dai_call(rdai
, &rdai
->capture
, probe
);
971 ret
= snd_soc_register_platform(dev
, &rsnd_soc_platform
);
973 dev_err(dev
, "cannot snd soc register\n");
977 ret
= snd_soc_register_component(dev
, &rsnd_soc_component
,
978 priv
->daidrv
, rsnd_rdai_nr(priv
));
980 dev_err(dev
, "cannot snd dai register\n");
984 dev_set_drvdata(dev
, priv
);
986 pm_runtime_enable(dev
);
988 dev_info(dev
, "probed\n");
992 snd_soc_unregister_platform(dev
);
997 static int rsnd_remove(struct platform_device
*pdev
)
999 struct rsnd_priv
*priv
= dev_get_drvdata(&pdev
->dev
);
1000 struct rsnd_dai
*rdai
;
1003 pm_runtime_disable(&pdev
->dev
);
1005 for_each_rsnd_dai(rdai
, priv
, i
) {
1006 ret
= rsnd_dai_call(rdai
, &rdai
->playback
, remove
);
1010 ret
= rsnd_dai_call(rdai
, &rdai
->capture
, remove
);
1018 static struct platform_driver rsnd_driver
= {
1020 .name
= "rcar_sound",
1021 .of_match_table
= rsnd_of_match
,
1023 .probe
= rsnd_probe
,
1024 .remove
= rsnd_remove
,
1026 module_platform_driver(rsnd_driver
);
1028 MODULE_LICENSE("GPL");
1029 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1030 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1031 MODULE_ALIAS("platform:rcar-pcm-audio");