1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for ADAU1701 SigmaDSP processor
5 * Copyright 2011 Analog Devices Inc.
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
7 * based on an inital version by Cliff Cai <cliff.cai@analog.com>
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/i2c.h>
13 #include <linux/delay.h>
14 #include <linux/slab.h>
16 #include <linux/of_gpio.h>
17 #include <linux/of_device.h>
18 #include <linux/regulator/consumer.h>
19 #include <linux/regmap.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
25 #include <asm/unaligned.h>
30 #define ADAU1701_SAFELOAD_DATA(i) (0x0810 + (i))
31 #define ADAU1701_SAFELOAD_ADDR(i) (0x0815 + (i))
33 #define ADAU1701_DSPCTRL 0x081c
34 #define ADAU1701_SEROCTL 0x081e
35 #define ADAU1701_SERICTL 0x081f
37 #define ADAU1701_AUXNPOW 0x0822
38 #define ADAU1701_PINCONF_0 0x0820
39 #define ADAU1701_PINCONF_1 0x0821
40 #define ADAU1701_AUXNPOW 0x0822
42 #define ADAU1701_OSCIPOW 0x0826
43 #define ADAU1701_DACSET 0x0827
45 #define ADAU1701_MAX_REGISTER 0x0828
47 #define ADAU1701_DSPCTRL_CR (1 << 2)
48 #define ADAU1701_DSPCTRL_DAM (1 << 3)
49 #define ADAU1701_DSPCTRL_ADM (1 << 4)
50 #define ADAU1701_DSPCTRL_IST (1 << 5)
51 #define ADAU1701_DSPCTRL_SR_48 0x00
52 #define ADAU1701_DSPCTRL_SR_96 0x01
53 #define ADAU1701_DSPCTRL_SR_192 0x02
54 #define ADAU1701_DSPCTRL_SR_MASK 0x03
56 #define ADAU1701_SEROCTL_INV_LRCLK 0x2000
57 #define ADAU1701_SEROCTL_INV_BCLK 0x1000
58 #define ADAU1701_SEROCTL_MASTER 0x0800
60 #define ADAU1701_SEROCTL_OBF16 0x0000
61 #define ADAU1701_SEROCTL_OBF8 0x0200
62 #define ADAU1701_SEROCTL_OBF4 0x0400
63 #define ADAU1701_SEROCTL_OBF2 0x0600
64 #define ADAU1701_SEROCTL_OBF_MASK 0x0600
66 #define ADAU1701_SEROCTL_OLF1024 0x0000
67 #define ADAU1701_SEROCTL_OLF512 0x0080
68 #define ADAU1701_SEROCTL_OLF256 0x0100
69 #define ADAU1701_SEROCTL_OLF_MASK 0x0180
71 #define ADAU1701_SEROCTL_MSB_DEALY1 0x0000
72 #define ADAU1701_SEROCTL_MSB_DEALY0 0x0004
73 #define ADAU1701_SEROCTL_MSB_DEALY8 0x0008
74 #define ADAU1701_SEROCTL_MSB_DEALY12 0x000c
75 #define ADAU1701_SEROCTL_MSB_DEALY16 0x0010
76 #define ADAU1701_SEROCTL_MSB_DEALY_MASK 0x001c
78 #define ADAU1701_SEROCTL_WORD_LEN_24 0x0000
79 #define ADAU1701_SEROCTL_WORD_LEN_20 0x0001
80 #define ADAU1701_SEROCTL_WORD_LEN_16 0x0002
81 #define ADAU1701_SEROCTL_WORD_LEN_MASK 0x0003
83 #define ADAU1701_AUXNPOW_VBPD 0x40
84 #define ADAU1701_AUXNPOW_VRPD 0x20
86 #define ADAU1701_SERICTL_I2S 0
87 #define ADAU1701_SERICTL_LEFTJ 1
88 #define ADAU1701_SERICTL_TDM 2
89 #define ADAU1701_SERICTL_RIGHTJ_24 3
90 #define ADAU1701_SERICTL_RIGHTJ_20 4
91 #define ADAU1701_SERICTL_RIGHTJ_18 5
92 #define ADAU1701_SERICTL_RIGHTJ_16 6
93 #define ADAU1701_SERICTL_MODE_MASK 7
94 #define ADAU1701_SERICTL_INV_BCLK BIT(3)
95 #define ADAU1701_SERICTL_INV_LRCLK BIT(4)
97 #define ADAU1701_OSCIPOW_OPD 0x04
98 #define ADAU1701_DACSET_DACINIT 1
100 #define ADAU1707_CLKDIV_UNSET (-1U)
102 #define ADAU1701_FIRMWARE "adau1701.bin"
104 static const char * const supply_names[] = {
110 int gpio_pll_mode[2];
111 unsigned int dai_fmt;
112 unsigned int pll_clkdiv;
114 struct regmap *regmap;
115 struct i2c_client *client;
118 struct sigmadsp *sigmadsp;
119 struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
122 static const struct snd_kcontrol_new adau1701_controls[] = {
123 SOC_SINGLE("Master Capture Switch", ADAU1701_DSPCTRL, 4, 1, 0),
126 static const struct snd_soc_dapm_widget adau1701_dapm_widgets[] = {
127 SND_SOC_DAPM_DAC("DAC0", "Playback", ADAU1701_AUXNPOW, 3, 1),
128 SND_SOC_DAPM_DAC("DAC1", "Playback", ADAU1701_AUXNPOW, 2, 1),
129 SND_SOC_DAPM_DAC("DAC2", "Playback", ADAU1701_AUXNPOW, 1, 1),
130 SND_SOC_DAPM_DAC("DAC3", "Playback", ADAU1701_AUXNPOW, 0, 1),
131 SND_SOC_DAPM_ADC("ADC", "Capture", ADAU1701_AUXNPOW, 7, 1),
133 SND_SOC_DAPM_OUTPUT("OUT0"),
134 SND_SOC_DAPM_OUTPUT("OUT1"),
135 SND_SOC_DAPM_OUTPUT("OUT2"),
136 SND_SOC_DAPM_OUTPUT("OUT3"),
137 SND_SOC_DAPM_INPUT("IN0"),
138 SND_SOC_DAPM_INPUT("IN1"),
141 static const struct snd_soc_dapm_route adau1701_dapm_routes[] = {
142 { "OUT0", NULL, "DAC0" },
143 { "OUT1", NULL, "DAC1" },
144 { "OUT2", NULL, "DAC2" },
145 { "OUT3", NULL, "DAC3" },
147 { "ADC", NULL, "IN0" },
148 { "ADC", NULL, "IN1" },
151 static unsigned int adau1701_register_size(struct device *dev,
155 case ADAU1701_PINCONF_0:
156 case ADAU1701_PINCONF_1:
158 case ADAU1701_DSPCTRL:
159 case ADAU1701_SEROCTL:
160 case ADAU1701_AUXNPOW:
161 case ADAU1701_OSCIPOW:
162 case ADAU1701_DACSET:
164 case ADAU1701_SERICTL:
168 dev_err(dev, "Unsupported register address: %d\n", reg);
172 static bool adau1701_volatile_reg(struct device *dev, unsigned int reg)
175 case ADAU1701_DACSET:
176 case ADAU1701_DSPCTRL:
183 static int adau1701_reg_write(void *context, unsigned int reg,
186 struct i2c_client *client = context;
192 size = adau1701_register_size(&client->dev, reg);
199 for (i = size + 1; i >= 2; --i) {
204 ret = i2c_master_send(client, buf, size + 2);
213 static int adau1701_reg_read(void *context, unsigned int reg,
219 uint8_t send_buf[2], recv_buf[3];
220 struct i2c_client *client = context;
221 struct i2c_msg msgs[2];
223 size = adau1701_register_size(&client->dev, reg);
227 send_buf[0] = reg >> 8;
228 send_buf[1] = reg & 0xff;
230 msgs[0].addr = client->addr;
231 msgs[0].len = sizeof(send_buf);
232 msgs[0].buf = send_buf;
235 msgs[1].addr = client->addr;
237 msgs[1].buf = recv_buf;
238 msgs[1].flags = I2C_M_RD;
240 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
243 else if (ret != ARRAY_SIZE(msgs))
248 for (i = 0; i < size; i++) {
250 *value |= recv_buf[i];
256 static int adau1701_safeload(struct sigmadsp *sigmadsp, unsigned int addr,
257 const uint8_t bytes[], size_t len)
259 struct i2c_client *client = to_i2c_client(sigmadsp->dev);
260 struct adau1701 *adau1701 = i2c_get_clientdata(client);
266 ret = regmap_read(adau1701->regmap, ADAU1701_DSPCTRL, &val);
270 if (val & ADAU1701_DSPCTRL_IST)
273 for (i = 0; i < len / 4; i++) {
274 put_unaligned_le16(ADAU1701_SAFELOAD_DATA(i), buf);
276 memcpy(buf + 3, bytes + i * 4, 4);
277 ret = i2c_master_send(client, buf, 7);
283 put_unaligned_le16(ADAU1701_SAFELOAD_ADDR(i), buf);
284 put_unaligned_le16(addr + i, buf + 2);
285 ret = i2c_master_send(client, buf, 4);
292 return regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL,
293 ADAU1701_DSPCTRL_IST, ADAU1701_DSPCTRL_IST);
296 static const struct sigmadsp_ops adau1701_sigmadsp_ops = {
297 .safeload = adau1701_safeload,
300 static int adau1701_reset(struct snd_soc_component *component, unsigned int clkdiv,
303 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
306 sigmadsp_reset(adau1701->sigmadsp);
308 if (clkdiv != ADAU1707_CLKDIV_UNSET &&
309 gpio_is_valid(adau1701->gpio_pll_mode[0]) &&
310 gpio_is_valid(adau1701->gpio_pll_mode[1])) {
313 gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 0);
314 gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 0);
317 gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 0);
318 gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 1);
321 gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 1);
322 gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 0);
324 case 0: /* fallback */
326 gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 1);
327 gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 1);
332 adau1701->pll_clkdiv = clkdiv;
334 if (gpio_is_valid(adau1701->gpio_nreset)) {
335 gpio_set_value_cansleep(adau1701->gpio_nreset, 0);
336 /* minimum reset time is 20ns */
338 gpio_set_value_cansleep(adau1701->gpio_nreset, 1);
339 /* power-up time may be as long as 85ms */
344 * Postpone the firmware download to a point in time when we
345 * know the correct PLL setup
347 if (clkdiv != ADAU1707_CLKDIV_UNSET) {
348 ret = sigmadsp_setup(adau1701->sigmadsp, rate);
350 dev_warn(component->dev, "Failed to load firmware\n");
355 regmap_write(adau1701->regmap, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT);
356 regmap_write(adau1701->regmap, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);
358 regcache_mark_dirty(adau1701->regmap);
359 regcache_sync(adau1701->regmap);
364 static int adau1701_set_capture_pcm_format(struct snd_soc_component *component,
365 struct snd_pcm_hw_params *params)
367 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
368 unsigned int mask = ADAU1701_SEROCTL_WORD_LEN_MASK;
371 switch (params_width(params)) {
373 val = ADAU1701_SEROCTL_WORD_LEN_16;
376 val = ADAU1701_SEROCTL_WORD_LEN_20;
379 val = ADAU1701_SEROCTL_WORD_LEN_24;
385 if (adau1701->dai_fmt == SND_SOC_DAIFMT_RIGHT_J) {
386 switch (params_width(params)) {
388 val |= ADAU1701_SEROCTL_MSB_DEALY16;
391 val |= ADAU1701_SEROCTL_MSB_DEALY12;
394 val |= ADAU1701_SEROCTL_MSB_DEALY8;
397 mask |= ADAU1701_SEROCTL_MSB_DEALY_MASK;
400 regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL, mask, val);
405 static int adau1701_set_playback_pcm_format(struct snd_soc_component *component,
406 struct snd_pcm_hw_params *params)
408 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
411 if (adau1701->dai_fmt != SND_SOC_DAIFMT_RIGHT_J)
414 switch (params_width(params)) {
416 val = ADAU1701_SERICTL_RIGHTJ_16;
419 val = ADAU1701_SERICTL_RIGHTJ_20;
422 val = ADAU1701_SERICTL_RIGHTJ_24;
428 regmap_update_bits(adau1701->regmap, ADAU1701_SERICTL,
429 ADAU1701_SERICTL_MODE_MASK, val);
434 static int adau1701_hw_params(struct snd_pcm_substream *substream,
435 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
437 struct snd_soc_component *component = dai->component;
438 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
439 unsigned int clkdiv = adau1701->sysclk / params_rate(params);
444 * If the mclk/lrclk ratio changes, the chip needs updated PLL
445 * mode GPIO settings, and a full reset cycle, including a new
448 if (clkdiv != adau1701->pll_clkdiv) {
449 ret = adau1701_reset(component, clkdiv, params_rate(params));
454 switch (params_rate(params)) {
456 val = ADAU1701_DSPCTRL_SR_192;
459 val = ADAU1701_DSPCTRL_SR_96;
462 val = ADAU1701_DSPCTRL_SR_48;
468 regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL,
469 ADAU1701_DSPCTRL_SR_MASK, val);
471 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
472 return adau1701_set_playback_pcm_format(component, params);
474 return adau1701_set_capture_pcm_format(component, params);
477 static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai,
480 struct snd_soc_component *component = codec_dai->component;
481 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
482 unsigned int serictl = 0x00, seroctl = 0x00;
485 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
486 case SND_SOC_DAIFMT_CBM_CFM:
487 /* master, 64-bits per sample, 1 frame per sample */
488 seroctl |= ADAU1701_SEROCTL_MASTER | ADAU1701_SEROCTL_OBF16
489 | ADAU1701_SEROCTL_OLF1024;
491 case SND_SOC_DAIFMT_CBS_CFS:
497 /* clock inversion */
498 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
499 case SND_SOC_DAIFMT_NB_NF:
500 invert_lrclk = false;
502 case SND_SOC_DAIFMT_NB_IF:
505 case SND_SOC_DAIFMT_IB_NF:
506 invert_lrclk = false;
507 serictl |= ADAU1701_SERICTL_INV_BCLK;
508 seroctl |= ADAU1701_SEROCTL_INV_BCLK;
510 case SND_SOC_DAIFMT_IB_IF:
512 serictl |= ADAU1701_SERICTL_INV_BCLK;
513 seroctl |= ADAU1701_SEROCTL_INV_BCLK;
519 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
520 case SND_SOC_DAIFMT_I2S:
522 case SND_SOC_DAIFMT_LEFT_J:
523 serictl |= ADAU1701_SERICTL_LEFTJ;
524 seroctl |= ADAU1701_SEROCTL_MSB_DEALY0;
525 invert_lrclk = !invert_lrclk;
527 case SND_SOC_DAIFMT_RIGHT_J:
528 serictl |= ADAU1701_SERICTL_RIGHTJ_24;
529 seroctl |= ADAU1701_SEROCTL_MSB_DEALY8;
530 invert_lrclk = !invert_lrclk;
537 seroctl |= ADAU1701_SEROCTL_INV_LRCLK;
538 serictl |= ADAU1701_SERICTL_INV_LRCLK;
541 adau1701->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
543 regmap_write(adau1701->regmap, ADAU1701_SERICTL, serictl);
544 regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL,
545 ~ADAU1701_SEROCTL_WORD_LEN_MASK, seroctl);
550 static int adau1701_set_bias_level(struct snd_soc_component *component,
551 enum snd_soc_bias_level level)
553 unsigned int mask = ADAU1701_AUXNPOW_VBPD | ADAU1701_AUXNPOW_VRPD;
554 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
557 case SND_SOC_BIAS_ON:
559 case SND_SOC_BIAS_PREPARE:
561 case SND_SOC_BIAS_STANDBY:
562 /* Enable VREF and VREF buffer */
563 regmap_update_bits(adau1701->regmap,
564 ADAU1701_AUXNPOW, mask, 0x00);
566 case SND_SOC_BIAS_OFF:
567 /* Disable VREF and VREF buffer */
568 regmap_update_bits(adau1701->regmap,
569 ADAU1701_AUXNPOW, mask, mask);
576 static int adau1701_digital_mute(struct snd_soc_dai *dai, int mute)
578 struct snd_soc_component *component = dai->component;
579 unsigned int mask = ADAU1701_DSPCTRL_DAM;
580 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
588 regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL, mask, val);
593 static int adau1701_set_sysclk(struct snd_soc_component *component, int clk_id,
594 int source, unsigned int freq, int dir)
597 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
600 case ADAU1701_CLK_SRC_OSC:
603 case ADAU1701_CLK_SRC_MCLK:
604 val = ADAU1701_OSCIPOW_OPD;
610 regmap_update_bits(adau1701->regmap, ADAU1701_OSCIPOW,
611 ADAU1701_OSCIPOW_OPD, val);
612 adau1701->sysclk = freq;
617 static int adau1701_startup(struct snd_pcm_substream *substream,
618 struct snd_soc_dai *dai)
620 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(dai->component);
622 return sigmadsp_restrict_params(adau1701->sigmadsp, substream);
625 #define ADAU1701_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | \
626 SNDRV_PCM_RATE_192000)
628 #define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
629 SNDRV_PCM_FMTBIT_S24_LE)
631 static const struct snd_soc_dai_ops adau1701_dai_ops = {
632 .set_fmt = adau1701_set_dai_fmt,
633 .hw_params = adau1701_hw_params,
634 .digital_mute = adau1701_digital_mute,
635 .startup = adau1701_startup,
638 static struct snd_soc_dai_driver adau1701_dai = {
641 .stream_name = "Playback",
644 .rates = ADAU1701_RATES,
645 .formats = ADAU1701_FORMATS,
648 .stream_name = "Capture",
651 .rates = ADAU1701_RATES,
652 .formats = ADAU1701_FORMATS,
654 .ops = &adau1701_dai_ops,
655 .symmetric_rates = 1,
659 static const struct of_device_id adau1701_dt_ids[] = {
660 { .compatible = "adi,adau1701", },
663 MODULE_DEVICE_TABLE(of, adau1701_dt_ids);
666 static int adau1701_probe(struct snd_soc_component *component)
670 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
672 ret = sigmadsp_attach(adau1701->sigmadsp, component);
676 ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
679 dev_err(component->dev, "Failed to enable regulators: %d\n", ret);
684 * Let the pll_clkdiv variable default to something that won't happen
685 * at runtime. That way, we can postpone the firmware download from
686 * adau1701_reset() to a point in time when we know the correct PLL
689 adau1701->pll_clkdiv = ADAU1707_CLKDIV_UNSET;
691 /* initalize with pre-configured pll mode settings */
692 ret = adau1701_reset(component, adau1701->pll_clkdiv, 0);
694 goto exit_regulators_disable;
696 /* set up pin config */
698 for (i = 0; i < 6; i++)
699 val |= adau1701->pin_config[i] << (i * 4);
701 regmap_write(adau1701->regmap, ADAU1701_PINCONF_0, val);
704 for (i = 0; i < 6; i++)
705 val |= adau1701->pin_config[i + 6] << (i * 4);
707 regmap_write(adau1701->regmap, ADAU1701_PINCONF_1, val);
711 exit_regulators_disable:
713 regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
717 static void adau1701_remove(struct snd_soc_component *component)
719 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
721 if (gpio_is_valid(adau1701->gpio_nreset))
722 gpio_set_value_cansleep(adau1701->gpio_nreset, 0);
724 regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
728 static int adau1701_suspend(struct snd_soc_component *component)
730 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
732 regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies),
738 static int adau1701_resume(struct snd_soc_component *component)
740 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
743 ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
746 dev_err(component->dev, "Failed to enable regulators: %d\n", ret);
750 return adau1701_reset(component, adau1701->pll_clkdiv, 0);
753 #define adau1701_resume NULL
754 #define adau1701_suspend NULL
755 #endif /* CONFIG_PM */
757 static const struct snd_soc_component_driver adau1701_component_drv = {
758 .probe = adau1701_probe,
759 .remove = adau1701_remove,
760 .resume = adau1701_resume,
761 .suspend = adau1701_suspend,
762 .set_bias_level = adau1701_set_bias_level,
763 .controls = adau1701_controls,
764 .num_controls = ARRAY_SIZE(adau1701_controls),
765 .dapm_widgets = adau1701_dapm_widgets,
766 .num_dapm_widgets = ARRAY_SIZE(adau1701_dapm_widgets),
767 .dapm_routes = adau1701_dapm_routes,
768 .num_dapm_routes = ARRAY_SIZE(adau1701_dapm_routes),
769 .set_sysclk = adau1701_set_sysclk,
770 .use_pmdown_time = 1,
772 .non_legacy_dai_naming = 1,
775 static const struct regmap_config adau1701_regmap = {
778 .max_register = ADAU1701_MAX_REGISTER,
779 .cache_type = REGCACHE_RBTREE,
780 .volatile_reg = adau1701_volatile_reg,
781 .reg_write = adau1701_reg_write,
782 .reg_read = adau1701_reg_read,
785 static int adau1701_i2c_probe(struct i2c_client *client,
786 const struct i2c_device_id *id)
788 struct adau1701 *adau1701;
789 struct device *dev = &client->dev;
790 int gpio_nreset = -EINVAL;
791 int gpio_pll_mode[2] = { -EINVAL, -EINVAL };
794 adau1701 = devm_kzalloc(dev, sizeof(*adau1701), GFP_KERNEL);
798 for (i = 0; i < ARRAY_SIZE(supply_names); i++)
799 adau1701->supplies[i].supply = supply_names[i];
801 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(adau1701->supplies),
804 dev_err(dev, "Failed to get regulators: %d\n", ret);
808 ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
811 dev_err(dev, "Failed to enable regulators: %d\n", ret);
815 adau1701->client = client;
816 adau1701->regmap = devm_regmap_init(dev, NULL, client,
818 if (IS_ERR(adau1701->regmap)) {
819 ret = PTR_ERR(adau1701->regmap);
820 goto exit_regulators_disable;
825 gpio_nreset = of_get_named_gpio(dev->of_node, "reset-gpio", 0);
826 if (gpio_nreset < 0 && gpio_nreset != -ENOENT) {
828 goto exit_regulators_disable;
831 gpio_pll_mode[0] = of_get_named_gpio(dev->of_node,
832 "adi,pll-mode-gpios", 0);
833 if (gpio_pll_mode[0] < 0 && gpio_pll_mode[0] != -ENOENT) {
834 ret = gpio_pll_mode[0];
835 goto exit_regulators_disable;
838 gpio_pll_mode[1] = of_get_named_gpio(dev->of_node,
839 "adi,pll-mode-gpios", 1);
840 if (gpio_pll_mode[1] < 0 && gpio_pll_mode[1] != -ENOENT) {
841 ret = gpio_pll_mode[1];
842 goto exit_regulators_disable;
845 of_property_read_u32(dev->of_node, "adi,pll-clkdiv",
846 &adau1701->pll_clkdiv);
848 of_property_read_u8_array(dev->of_node, "adi,pin-config",
849 adau1701->pin_config,
850 ARRAY_SIZE(adau1701->pin_config));
853 if (gpio_is_valid(gpio_nreset)) {
854 ret = devm_gpio_request_one(dev, gpio_nreset, GPIOF_OUT_INIT_LOW,
857 goto exit_regulators_disable;
860 if (gpio_is_valid(gpio_pll_mode[0]) &&
861 gpio_is_valid(gpio_pll_mode[1])) {
862 ret = devm_gpio_request_one(dev, gpio_pll_mode[0],
864 "ADAU1701 PLL mode 0");
866 goto exit_regulators_disable;
868 ret = devm_gpio_request_one(dev, gpio_pll_mode[1],
870 "ADAU1701 PLL mode 1");
872 goto exit_regulators_disable;
875 adau1701->gpio_nreset = gpio_nreset;
876 adau1701->gpio_pll_mode[0] = gpio_pll_mode[0];
877 adau1701->gpio_pll_mode[1] = gpio_pll_mode[1];
879 i2c_set_clientdata(client, adau1701);
881 adau1701->sigmadsp = devm_sigmadsp_init_i2c(client,
882 &adau1701_sigmadsp_ops, ADAU1701_FIRMWARE);
883 if (IS_ERR(adau1701->sigmadsp)) {
884 ret = PTR_ERR(adau1701->sigmadsp);
885 goto exit_regulators_disable;
888 ret = devm_snd_soc_register_component(&client->dev,
889 &adau1701_component_drv,
892 exit_regulators_disable:
894 regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
898 static const struct i2c_device_id adau1701_i2c_id[] = {
905 MODULE_DEVICE_TABLE(i2c, adau1701_i2c_id);
907 static struct i2c_driver adau1701_i2c_driver = {
910 .of_match_table = of_match_ptr(adau1701_dt_ids),
912 .probe = adau1701_i2c_probe,
913 .id_table = adau1701_i2c_id,
916 module_i2c_driver(adau1701_i2c_driver);
918 MODULE_DESCRIPTION("ASoC ADAU1701 SigmaDSP driver");
919 MODULE_AUTHOR("Cliff Cai <cliff.cai@analog.com>");
920 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
921 MODULE_LICENSE("GPL");