2 * Copyright (C) ST-Ericsson SA 2012
4 * Author: Ola Lilja <ola.o.lilja@stericsson.com>,
5 * Roger Nilsson <roger.xr.nilsson@stericsson.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 published
12 * by the Free Software Foundation.
15 #include <linux/module.h>
16 #include <linux/slab.h>
17 #include <linux/bitops.h>
18 #include <linux/platform_device.h>
19 #include <linux/clk.h>
20 #include <linux/regulator/consumer.h>
21 #include <linux/mfd/dbx500-prcmu.h>
22 #include <linux/platform_data/asoc-ux500-msp.h>
24 #include <sound/soc.h>
25 #include <sound/soc-dai.h>
27 #include "ux500_msp_i2s.h"
28 #include "ux500_msp_dai.h"
29 #include "ux500_pcm.h"
31 static int setup_pcm_multichan(struct snd_soc_dai *dai,
32 struct ux500_msp_config *msp_config)
34 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
35 struct msp_multichannel_config *multi =
36 &msp_config->multichannel_config;
38 if (drvdata->slots > 1) {
39 msp_config->multichannel_configured = 1;
41 multi->tx_multichannel_enable = true;
42 multi->rx_multichannel_enable = true;
43 multi->rx_comparison_enable_mode = MSP_COMPARISON_DISABLED;
45 multi->tx_channel_0_enable = drvdata->tx_mask;
46 multi->tx_channel_1_enable = 0;
47 multi->tx_channel_2_enable = 0;
48 multi->tx_channel_3_enable = 0;
50 multi->rx_channel_0_enable = drvdata->rx_mask;
51 multi->rx_channel_1_enable = 0;
52 multi->rx_channel_2_enable = 0;
53 multi->rx_channel_3_enable = 0;
56 "%s: Multichannel enabled. Slots: %d, TX: %u, RX: %u\n",
57 __func__, drvdata->slots, multi->tx_channel_0_enable,
58 multi->rx_channel_0_enable);
64 static int setup_frameper(struct snd_soc_dai *dai, unsigned int rate,
65 struct msp_protdesc *prot_desc)
67 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
69 switch (drvdata->slots) {
73 prot_desc->frame_period =
74 FRAME_PER_SINGLE_SLOT_8_KHZ;
78 prot_desc->frame_period =
79 FRAME_PER_SINGLE_SLOT_16_KHZ;
83 prot_desc->frame_period =
84 FRAME_PER_SINGLE_SLOT_44_1_KHZ;
88 prot_desc->frame_period =
89 FRAME_PER_SINGLE_SLOT_48_KHZ;
94 "%s: Error: Unsupported sample-rate (freq = %d)!\n",
101 prot_desc->frame_period = FRAME_PER_2_SLOTS;
105 prot_desc->frame_period = FRAME_PER_8_SLOTS;
109 prot_desc->frame_period = FRAME_PER_16_SLOTS;
113 "%s: Error: Unsupported slot-count (slots = %d)!\n",
114 __func__, drvdata->slots);
118 prot_desc->clocks_per_frame =
119 prot_desc->frame_period+1;
121 dev_dbg(dai->dev, "%s: Clocks per frame: %u\n",
123 prot_desc->clocks_per_frame);
128 static int setup_pcm_framing(struct snd_soc_dai *dai, unsigned int rate,
129 struct msp_protdesc *prot_desc)
131 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
133 u32 frame_length = MSP_FRAME_LEN_1;
134 prot_desc->frame_width = 0;
136 switch (drvdata->slots) {
138 frame_length = MSP_FRAME_LEN_1;
142 frame_length = MSP_FRAME_LEN_2;
146 frame_length = MSP_FRAME_LEN_8;
150 frame_length = MSP_FRAME_LEN_16;
154 "%s: Error: Unsupported slot-count (slots = %d)!\n",
155 __func__, drvdata->slots);
159 prot_desc->tx_frame_len_1 = frame_length;
160 prot_desc->rx_frame_len_1 = frame_length;
161 prot_desc->tx_frame_len_2 = frame_length;
162 prot_desc->rx_frame_len_2 = frame_length;
164 prot_desc->tx_elem_len_1 = MSP_ELEM_LEN_16;
165 prot_desc->rx_elem_len_1 = MSP_ELEM_LEN_16;
166 prot_desc->tx_elem_len_2 = MSP_ELEM_LEN_16;
167 prot_desc->rx_elem_len_2 = MSP_ELEM_LEN_16;
169 return setup_frameper(dai, rate, prot_desc);
172 static int setup_clocking(struct snd_soc_dai *dai,
174 struct ux500_msp_config *msp_config)
176 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
177 case SND_SOC_DAIFMT_NB_NF:
180 case SND_SOC_DAIFMT_NB_IF:
181 msp_config->tx_fsync_pol ^= 1 << TFSPOL_SHIFT;
182 msp_config->rx_fsync_pol ^= 1 << RFSPOL_SHIFT;
188 "%s: Error: Unsopported inversion (fmt = 0x%x)!\n",
194 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
195 case SND_SOC_DAIFMT_CBM_CFM:
196 dev_dbg(dai->dev, "%s: Codec is master.\n", __func__);
198 msp_config->iodelay = 0x20;
199 msp_config->rx_fsync_sel = 0;
200 msp_config->tx_fsync_sel = 1 << TFSSEL_SHIFT;
201 msp_config->tx_clk_sel = 0;
202 msp_config->rx_clk_sel = 0;
203 msp_config->srg_clk_sel = 0x2 << SCKSEL_SHIFT;
207 case SND_SOC_DAIFMT_CBS_CFS:
208 dev_dbg(dai->dev, "%s: Codec is slave.\n", __func__);
210 msp_config->tx_clk_sel = TX_CLK_SEL_SRG;
211 msp_config->tx_fsync_sel = TX_SYNC_SRG_PROG;
212 msp_config->rx_clk_sel = RX_CLK_SEL_SRG;
213 msp_config->rx_fsync_sel = RX_SYNC_SRG;
214 msp_config->srg_clk_sel = 1 << SCKSEL_SHIFT;
219 dev_err(dai->dev, "%s: Error: Unsopported master (fmt = 0x%x)!\n",
228 static int setup_pcm_protdesc(struct snd_soc_dai *dai,
230 struct msp_protdesc *prot_desc)
232 prot_desc->rx_phase_mode = MSP_SINGLE_PHASE;
233 prot_desc->tx_phase_mode = MSP_SINGLE_PHASE;
234 prot_desc->rx_phase2_start_mode = MSP_PHASE2_START_MODE_IMEDIATE;
235 prot_desc->tx_phase2_start_mode = MSP_PHASE2_START_MODE_IMEDIATE;
236 prot_desc->rx_byte_order = MSP_BTF_MS_BIT_FIRST;
237 prot_desc->tx_byte_order = MSP_BTF_MS_BIT_FIRST;
238 prot_desc->tx_fsync_pol = MSP_FSYNC_POL(MSP_FSYNC_POL_ACT_HI);
239 prot_desc->rx_fsync_pol = MSP_FSYNC_POL_ACT_HI << RFSPOL_SHIFT;
241 if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_DSP_A) {
242 dev_dbg(dai->dev, "%s: DSP_A.\n", __func__);
243 prot_desc->rx_clk_pol = MSP_RISING_EDGE;
244 prot_desc->tx_clk_pol = MSP_FALLING_EDGE;
246 prot_desc->rx_data_delay = MSP_DELAY_1;
247 prot_desc->tx_data_delay = MSP_DELAY_1;
249 dev_dbg(dai->dev, "%s: DSP_B.\n", __func__);
250 prot_desc->rx_clk_pol = MSP_FALLING_EDGE;
251 prot_desc->tx_clk_pol = MSP_RISING_EDGE;
253 prot_desc->rx_data_delay = MSP_DELAY_0;
254 prot_desc->tx_data_delay = MSP_DELAY_0;
257 prot_desc->rx_half_word_swap = MSP_SWAP_NONE;
258 prot_desc->tx_half_word_swap = MSP_SWAP_NONE;
259 prot_desc->compression_mode = MSP_COMPRESS_MODE_LINEAR;
260 prot_desc->expansion_mode = MSP_EXPAND_MODE_LINEAR;
261 prot_desc->frame_sync_ignore = MSP_FSYNC_IGNORE;
266 static int setup_i2s_protdesc(struct msp_protdesc *prot_desc)
268 prot_desc->rx_phase_mode = MSP_DUAL_PHASE;
269 prot_desc->tx_phase_mode = MSP_DUAL_PHASE;
270 prot_desc->rx_phase2_start_mode = MSP_PHASE2_START_MODE_FSYNC;
271 prot_desc->tx_phase2_start_mode = MSP_PHASE2_START_MODE_FSYNC;
272 prot_desc->rx_byte_order = MSP_BTF_MS_BIT_FIRST;
273 prot_desc->tx_byte_order = MSP_BTF_MS_BIT_FIRST;
274 prot_desc->tx_fsync_pol = MSP_FSYNC_POL(MSP_FSYNC_POL_ACT_LO);
275 prot_desc->rx_fsync_pol = MSP_FSYNC_POL_ACT_LO << RFSPOL_SHIFT;
277 prot_desc->rx_frame_len_1 = MSP_FRAME_LEN_1;
278 prot_desc->rx_frame_len_2 = MSP_FRAME_LEN_1;
279 prot_desc->tx_frame_len_1 = MSP_FRAME_LEN_1;
280 prot_desc->tx_frame_len_2 = MSP_FRAME_LEN_1;
281 prot_desc->rx_elem_len_1 = MSP_ELEM_LEN_16;
282 prot_desc->rx_elem_len_2 = MSP_ELEM_LEN_16;
283 prot_desc->tx_elem_len_1 = MSP_ELEM_LEN_16;
284 prot_desc->tx_elem_len_2 = MSP_ELEM_LEN_16;
286 prot_desc->rx_clk_pol = MSP_RISING_EDGE;
287 prot_desc->tx_clk_pol = MSP_FALLING_EDGE;
289 prot_desc->rx_data_delay = MSP_DELAY_0;
290 prot_desc->tx_data_delay = MSP_DELAY_0;
292 prot_desc->tx_half_word_swap = MSP_SWAP_NONE;
293 prot_desc->rx_half_word_swap = MSP_SWAP_NONE;
294 prot_desc->compression_mode = MSP_COMPRESS_MODE_LINEAR;
295 prot_desc->expansion_mode = MSP_EXPAND_MODE_LINEAR;
296 prot_desc->frame_sync_ignore = MSP_FSYNC_IGNORE;
301 static int setup_msp_config(struct snd_pcm_substream *substream,
302 struct snd_soc_dai *dai,
303 struct ux500_msp_config *msp_config)
305 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
306 struct msp_protdesc *prot_desc = &msp_config->protdesc;
307 struct snd_pcm_runtime *runtime = substream->runtime;
308 unsigned int fmt = drvdata->fmt;
311 memset(msp_config, 0, sizeof(*msp_config));
313 msp_config->f_inputclk = drvdata->master_clk;
315 msp_config->tx_fifo_config = TX_FIFO_ENABLE;
316 msp_config->rx_fifo_config = RX_FIFO_ENABLE;
317 msp_config->def_elem_len = 1;
318 msp_config->direction = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
319 MSP_DIR_TX : MSP_DIR_RX;
320 msp_config->data_size = MSP_DATA_BITS_32;
321 msp_config->frame_freq = runtime->rate;
323 dev_dbg(dai->dev, "%s: f_inputclk = %u, frame_freq = %u.\n",
324 __func__, msp_config->f_inputclk, msp_config->frame_freq);
325 /* To avoid division by zero */
326 prot_desc->clocks_per_frame = 1;
328 dev_dbg(dai->dev, "%s: rate: %u, channels: %d.\n", __func__,
329 runtime->rate, runtime->channels);
331 (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_MASTER_MASK)) {
332 case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS:
333 dev_dbg(dai->dev, "%s: SND_SOC_DAIFMT_I2S.\n", __func__);
335 msp_config->default_protdesc = 1;
336 msp_config->protocol = MSP_I2S_PROTOCOL;
339 case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBM_CFM:
340 dev_dbg(dai->dev, "%s: SND_SOC_DAIFMT_I2S.\n", __func__);
342 msp_config->data_size = MSP_DATA_BITS_16;
343 msp_config->protocol = MSP_I2S_PROTOCOL;
345 ret = setup_i2s_protdesc(prot_desc);
351 case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBS_CFS:
352 case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFM:
353 case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBS_CFS:
354 case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM:
355 dev_dbg(dai->dev, "%s: PCM format.\n", __func__);
357 msp_config->data_size = MSP_DATA_BITS_16;
358 msp_config->protocol = MSP_PCM_PROTOCOL;
360 ret = setup_pcm_protdesc(dai, fmt, prot_desc);
364 ret = setup_pcm_multichan(dai, msp_config);
368 ret = setup_pcm_framing(dai, runtime->rate, prot_desc);
375 dev_err(dai->dev, "%s: Error: Unsopported format (%d)!\n",
380 return setup_clocking(dai, fmt, msp_config);
383 static int ux500_msp_dai_startup(struct snd_pcm_substream *substream,
384 struct snd_soc_dai *dai)
387 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
389 dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id,
390 snd_pcm_stream_str(substream));
392 /* Enable regulator */
393 ret = regulator_enable(drvdata->reg_vape);
395 dev_err(drvdata->msp->dev,
396 "%s: Failed to enable regulator!\n", __func__);
400 /* Prepare and enable clocks */
401 dev_dbg(dai->dev, "%s: Enabling MSP-clocks.\n", __func__);
402 ret = clk_prepare_enable(drvdata->pclk);
404 dev_err(drvdata->msp->dev,
405 "%s: Failed to prepare/enable pclk!\n", __func__);
409 ret = clk_prepare_enable(drvdata->clk);
411 dev_err(drvdata->msp->dev,
412 "%s: Failed to prepare/enable clk!\n", __func__);
418 clk_disable_unprepare(drvdata->pclk);
420 regulator_disable(drvdata->reg_vape);
424 static void ux500_msp_dai_shutdown(struct snd_pcm_substream *substream,
425 struct snd_soc_dai *dai)
428 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
429 bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
431 dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id,
432 snd_pcm_stream_str(substream));
434 if (drvdata->vape_opp_constraint == 1) {
435 prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP,
436 "ux500_msp_i2s", 50);
437 drvdata->vape_opp_constraint = 0;
440 if (ux500_msp_i2s_close(drvdata->msp,
441 is_playback ? MSP_DIR_TX : MSP_DIR_RX)) {
443 "%s: Error: MSP %d (%s): Unable to close i2s.\n",
444 __func__, dai->id, snd_pcm_stream_str(substream));
447 /* Disable and unprepare clocks */
448 clk_disable_unprepare(drvdata->clk);
449 clk_disable_unprepare(drvdata->pclk);
451 /* Disable regulator */
452 ret = regulator_disable(drvdata->reg_vape);
455 "%s: ERROR: Failed to disable regulator (%d)!\n",
459 static int ux500_msp_dai_prepare(struct snd_pcm_substream *substream,
460 struct snd_soc_dai *dai)
463 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
464 struct snd_pcm_runtime *runtime = substream->runtime;
465 struct ux500_msp_config msp_config;
467 dev_dbg(dai->dev, "%s: MSP %d (%s): Enter (rate = %d).\n", __func__,
468 dai->id, snd_pcm_stream_str(substream), runtime->rate);
470 setup_msp_config(substream, dai, &msp_config);
472 ret = ux500_msp_i2s_open(drvdata->msp, &msp_config);
474 dev_err(dai->dev, "%s: Error: msp_setup failed (ret = %d)!\n",
480 if ((drvdata->fmt & SND_SOC_DAIFMT_MASTER_MASK) &&
481 (drvdata->msp->f_bitclk > 19200000)) {
482 /* If the bit-clock is higher than 19.2MHz, Vape should be
483 * run in 100% OPP. Only when bit-clock is used (MSP master) */
484 prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP,
485 "ux500-msp-i2s", 100);
486 drvdata->vape_opp_constraint = 1;
488 prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP,
489 "ux500-msp-i2s", 50);
490 drvdata->vape_opp_constraint = 0;
496 static int ux500_msp_dai_hw_params(struct snd_pcm_substream *substream,
497 struct snd_pcm_hw_params *params,
498 struct snd_soc_dai *dai)
500 unsigned int mask, slots_active;
501 struct snd_pcm_runtime *runtime = substream->runtime;
502 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
504 dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n",
505 __func__, dai->id, snd_pcm_stream_str(substream));
507 switch (drvdata->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
508 case SND_SOC_DAIFMT_I2S:
509 snd_pcm_hw_constraint_minmax(runtime,
510 SNDRV_PCM_HW_PARAM_CHANNELS,
514 case SND_SOC_DAIFMT_DSP_B:
515 case SND_SOC_DAIFMT_DSP_A:
516 mask = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
520 slots_active = hweight32(mask);
521 dev_dbg(dai->dev, "TDM-slots active: %d", slots_active);
523 snd_pcm_hw_constraint_minmax(runtime,
524 SNDRV_PCM_HW_PARAM_CHANNELS,
525 slots_active, slots_active);
530 "%s: Error: Unsupported protocol (fmt = 0x%x)!\n",
531 __func__, drvdata->fmt);
538 static int ux500_msp_dai_set_dai_fmt(struct snd_soc_dai *dai,
541 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
543 dev_dbg(dai->dev, "%s: MSP %d: Enter.\n", __func__, dai->id);
545 switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK |
546 SND_SOC_DAIFMT_MASTER_MASK)) {
547 case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS:
548 case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBM_CFM:
549 case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBS_CFS:
550 case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM:
551 case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBS_CFS:
552 case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFM:
557 "%s: Error: Unsupported protocol/master (fmt = 0x%x)!\n",
558 __func__, drvdata->fmt);
562 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
563 case SND_SOC_DAIFMT_NB_NF:
564 case SND_SOC_DAIFMT_NB_IF:
565 case SND_SOC_DAIFMT_IB_IF:
570 "%s: Error: Unsupported inversion (fmt = 0x%x)!\n",
571 __func__, drvdata->fmt);
579 static int ux500_msp_dai_set_tdm_slot(struct snd_soc_dai *dai,
580 unsigned int tx_mask,
581 unsigned int rx_mask,
582 int slots, int slot_width)
584 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
601 dev_err(dai->dev, "%s: Error: Unsupported slot-count (%d)!\n",
605 drvdata->slots = slots;
607 if (!(slot_width == 16)) {
608 dev_err(dai->dev, "%s: Error: Unsupported slot-width (%d)!\n",
609 __func__, slot_width);
612 drvdata->slot_width = slot_width;
614 drvdata->tx_mask = tx_mask & cap;
615 drvdata->rx_mask = rx_mask & cap;
620 static int ux500_msp_dai_set_dai_sysclk(struct snd_soc_dai *dai,
621 int clk_id, unsigned int freq, int dir)
623 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
625 dev_dbg(dai->dev, "%s: MSP %d: Enter. clk-id: %d, freq: %u.\n",
626 __func__, dai->id, clk_id, freq);
629 case UX500_MSP_MASTER_CLOCK:
630 drvdata->master_clk = freq;
634 dev_err(dai->dev, "%s: MSP %d: Invalid clk-id (%d)!\n",
635 __func__, dai->id, clk_id);
642 static int ux500_msp_dai_trigger(struct snd_pcm_substream *substream,
643 int cmd, struct snd_soc_dai *dai)
646 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
648 dev_dbg(dai->dev, "%s: MSP %d (%s): Enter (msp->id = %d, cmd = %d).\n",
649 __func__, dai->id, snd_pcm_stream_str(substream),
650 (int)drvdata->msp->id, cmd);
652 ret = ux500_msp_i2s_trigger(drvdata->msp, cmd, substream->stream);
657 static int ux500_msp_dai_probe(struct snd_soc_dai *dai)
659 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
661 drvdata->playback_dma_data.dma_cfg = drvdata->msp->dma_cfg_tx;
662 drvdata->capture_dma_data.dma_cfg = drvdata->msp->dma_cfg_rx;
664 dai->playback_dma_data = &drvdata->playback_dma_data;
665 dai->capture_dma_data = &drvdata->capture_dma_data;
667 drvdata->playback_dma_data.data_size = drvdata->slot_width;
668 drvdata->capture_dma_data.data_size = drvdata->slot_width;
673 static struct snd_soc_dai_ops ux500_msp_dai_ops[] = {
675 .set_sysclk = ux500_msp_dai_set_dai_sysclk,
676 .set_fmt = ux500_msp_dai_set_dai_fmt,
677 .set_tdm_slot = ux500_msp_dai_set_tdm_slot,
678 .startup = ux500_msp_dai_startup,
679 .shutdown = ux500_msp_dai_shutdown,
680 .prepare = ux500_msp_dai_prepare,
681 .trigger = ux500_msp_dai_trigger,
682 .hw_params = ux500_msp_dai_hw_params,
686 static struct snd_soc_dai_driver ux500_msp_dai_drv[UX500_NBR_OF_DAI] = {
688 .name = "ux500-msp-i2s.0",
689 .probe = ux500_msp_dai_probe,
694 .channels_min = UX500_MSP_MIN_CHANNELS,
695 .channels_max = UX500_MSP_MAX_CHANNELS,
696 .rates = UX500_I2S_RATES,
697 .formats = UX500_I2S_FORMATS,
700 .channels_min = UX500_MSP_MIN_CHANNELS,
701 .channels_max = UX500_MSP_MAX_CHANNELS,
702 .rates = UX500_I2S_RATES,
703 .formats = UX500_I2S_FORMATS,
705 .ops = ux500_msp_dai_ops,
708 .name = "ux500-msp-i2s.1",
709 .probe = ux500_msp_dai_probe,
714 .channels_min = UX500_MSP_MIN_CHANNELS,
715 .channels_max = UX500_MSP_MAX_CHANNELS,
716 .rates = UX500_I2S_RATES,
717 .formats = UX500_I2S_FORMATS,
720 .channels_min = UX500_MSP_MIN_CHANNELS,
721 .channels_max = UX500_MSP_MAX_CHANNELS,
722 .rates = UX500_I2S_RATES,
723 .formats = UX500_I2S_FORMATS,
725 .ops = ux500_msp_dai_ops,
728 .name = "ux500-msp-i2s.2",
730 .probe = ux500_msp_dai_probe,
734 .channels_min = UX500_MSP_MIN_CHANNELS,
735 .channels_max = UX500_MSP_MAX_CHANNELS,
736 .rates = UX500_I2S_RATES,
737 .formats = UX500_I2S_FORMATS,
740 .channels_min = UX500_MSP_MIN_CHANNELS,
741 .channels_max = UX500_MSP_MAX_CHANNELS,
742 .rates = UX500_I2S_RATES,
743 .formats = UX500_I2S_FORMATS,
745 .ops = ux500_msp_dai_ops,
748 .name = "ux500-msp-i2s.3",
749 .probe = ux500_msp_dai_probe,
754 .channels_min = UX500_MSP_MIN_CHANNELS,
755 .channels_max = UX500_MSP_MAX_CHANNELS,
756 .rates = UX500_I2S_RATES,
757 .formats = UX500_I2S_FORMATS,
760 .channels_min = UX500_MSP_MIN_CHANNELS,
761 .channels_max = UX500_MSP_MAX_CHANNELS,
762 .rates = UX500_I2S_RATES,
763 .formats = UX500_I2S_FORMATS,
765 .ops = ux500_msp_dai_ops,
769 static const struct snd_soc_component_driver ux500_msp_component = {
774 static int ux500_msp_drv_probe(struct platform_device *pdev)
776 struct ux500_msp_i2s_drvdata *drvdata;
779 dev_dbg(&pdev->dev, "%s: Enter (pdev->name = %s).\n", __func__,
782 drvdata = devm_kzalloc(&pdev->dev,
783 sizeof(struct ux500_msp_i2s_drvdata),
790 drvdata->tx_mask = 0x01;
791 drvdata->rx_mask = 0x01;
792 drvdata->slot_width = 16;
793 drvdata->master_clk = MSP_INPUT_FREQ_APB;
795 drvdata->reg_vape = devm_regulator_get(&pdev->dev, "v-ape");
796 if (IS_ERR(drvdata->reg_vape)) {
797 ret = (int)PTR_ERR(drvdata->reg_vape);
799 "%s: ERROR: Failed to get Vape supply (%d)!\n",
803 prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP, (char *)pdev->name, 50);
805 drvdata->pclk = clk_get(&pdev->dev, "apb_pclk");
806 if (IS_ERR(drvdata->pclk)) {
807 ret = (int)PTR_ERR(drvdata->pclk);
808 dev_err(&pdev->dev, "%s: ERROR: clk_get of pclk failed (%d)!\n",
813 drvdata->clk = clk_get(&pdev->dev, NULL);
814 if (IS_ERR(drvdata->clk)) {
815 ret = (int)PTR_ERR(drvdata->clk);
816 dev_err(&pdev->dev, "%s: ERROR: clk_get failed (%d)!\n",
821 ret = ux500_msp_i2s_init_msp(pdev, &drvdata->msp,
822 pdev->dev.platform_data);
825 "%s: ERROR: Failed to init MSP-struct (%d)!",
829 dev_set_drvdata(&pdev->dev, drvdata);
831 ret = snd_soc_register_component(&pdev->dev, &ux500_msp_component,
832 &ux500_msp_dai_drv[drvdata->msp->id], 1);
834 dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n",
835 __func__, drvdata->msp->id);
839 ret = ux500_pcm_register_platform(pdev);
842 "Error: %s: Failed to register PCM platform device!\n",
850 snd_soc_unregister_component(&pdev->dev);
852 clk_put(drvdata->clk);
854 clk_put(drvdata->pclk);
856 devm_regulator_put(drvdata->reg_vape);
861 static int ux500_msp_drv_remove(struct platform_device *pdev)
863 struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(&pdev->dev);
865 ux500_pcm_unregister_platform(pdev);
867 snd_soc_unregister_component(&pdev->dev);
869 devm_regulator_put(drvdata->reg_vape);
870 prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, "ux500_msp_i2s");
872 clk_put(drvdata->clk);
873 clk_put(drvdata->pclk);
875 ux500_msp_i2s_cleanup_msp(pdev, drvdata->msp);
880 static const struct of_device_id ux500_msp_i2s_match[] = {
881 { .compatible = "stericsson,ux500-msp-i2s", },
885 static struct platform_driver msp_i2s_driver = {
887 .name = "ux500-msp-i2s",
888 .owner = THIS_MODULE,
889 .of_match_table = ux500_msp_i2s_match,
891 .probe = ux500_msp_drv_probe,
892 .remove = ux500_msp_drv_remove,
894 module_platform_driver(msp_i2s_driver);
896 MODULE_LICENSE("GPL v2");