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1/*
2 * spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
3 *
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Copyright 2005 Openedhand Ltd.
6 *
7 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
8 * Richard Purdie <richard@openedhand.com>
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/module.h>
18#include <linux/moduleparam.h>
19#include <linux/timer.h>
20#include <linux/interrupt.h>
21#include <linux/platform_device.h>
22#include <linux/gpio.h>
23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/soc.h>
26
27#include <asm/mach-types.h>
28#include <mach/spitz.h>
29#include "../codecs/wm8750.h"
30#include "pxa2xx-i2s.h"
31
32#define SPITZ_HP 0
33#define SPITZ_MIC 1
34#define SPITZ_LINE 2
35#define SPITZ_HEADSET 3
36#define SPITZ_HP_OFF 4
37#define SPITZ_SPK_ON 0
38#define SPITZ_SPK_OFF 1
39
40 /* audio clock in Hz - rounded from 12.235MHz */
41#define SPITZ_AUDIO_CLOCK 12288000
42
43static int spitz_jack_func;
44static int spitz_spk_func;
45static int spitz_mic_gpio;
46
47static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
48{
49 snd_soc_dapm_mutex_lock(dapm);
50
51 if (spitz_spk_func == SPITZ_SPK_ON)
52 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
53 else
54 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
55
56 /* set up jack connection */
57 switch (spitz_jack_func) {
58 case SPITZ_HP:
59 /* enable and unmute hp jack, disable mic bias */
60 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
61 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
62 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
63 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
64 gpio_set_value(SPITZ_GPIO_MUTE_L, 1);
65 gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
66 break;
67 case SPITZ_MIC:
68 /* enable mic jack and bias, mute hp */
69 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
70 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
71 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
72 snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
73 gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
74 gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
75 break;
76 case SPITZ_LINE:
77 /* enable line jack, disable mic bias and mute hp */
78 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
79 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
80 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
81 snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack");
82 gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
83 gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
84 break;
85 case SPITZ_HEADSET:
86 /* enable and unmute headset jack enable mic bias, mute L hp */
87 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
88 snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
89 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
90 snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
91 gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
92 gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
93 break;
94 case SPITZ_HP_OFF:
95
96 /* jack removed, everything off */
97 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
98 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
99 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
100 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
101 gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
102 gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
103 break;
104 }
105
106 snd_soc_dapm_sync_unlocked(dapm);
107
108 snd_soc_dapm_mutex_unlock(dapm);
109}
110
111static int spitz_startup(struct snd_pcm_substream *substream)
112{
113 struct snd_soc_pcm_runtime *rtd = substream->private_data;
114
115 /* check the jack status at stream startup */
116 spitz_ext_control(&rtd->card->dapm);
117
118 return 0;
119}
120
121static int spitz_hw_params(struct snd_pcm_substream *substream,
122 struct snd_pcm_hw_params *params)
123{
124 struct snd_soc_pcm_runtime *rtd = substream->private_data;
125 struct snd_soc_dai *codec_dai = rtd->codec_dai;
126 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
127 unsigned int clk = 0;
128 int ret = 0;
129
130 switch (params_rate(params)) {
131 case 8000:
132 case 16000:
133 case 48000:
134 case 96000:
135 clk = 12288000;
136 break;
137 case 11025:
138 case 22050:
139 case 44100:
140 clk = 11289600;
141 break;
142 }
143
144 /* set the codec system clock for DAC and ADC */
145 ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
146 SND_SOC_CLOCK_IN);
147 if (ret < 0)
148 return ret;
149
150 /* set the I2S system clock as input (unused) */
151 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
152 SND_SOC_CLOCK_IN);
153 if (ret < 0)
154 return ret;
155
156 return 0;
157}
158
159static struct snd_soc_ops spitz_ops = {
160 .startup = spitz_startup,
161 .hw_params = spitz_hw_params,
162};
163
164static int spitz_get_jack(struct snd_kcontrol *kcontrol,
165 struct snd_ctl_elem_value *ucontrol)
166{
167 ucontrol->value.enumerated.item[0] = spitz_jack_func;
168 return 0;
169}
170
171static int spitz_set_jack(struct snd_kcontrol *kcontrol,
172 struct snd_ctl_elem_value *ucontrol)
173{
174 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
175
176 if (spitz_jack_func == ucontrol->value.enumerated.item[0])
177 return 0;
178
179 spitz_jack_func = ucontrol->value.enumerated.item[0];
180 spitz_ext_control(&card->dapm);
181 return 1;
182}
183
184static int spitz_get_spk(struct snd_kcontrol *kcontrol,
185 struct snd_ctl_elem_value *ucontrol)
186{
187 ucontrol->value.enumerated.item[0] = spitz_spk_func;
188 return 0;
189}
190
191static int spitz_set_spk(struct snd_kcontrol *kcontrol,
192 struct snd_ctl_elem_value *ucontrol)
193{
194 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
195
196 if (spitz_spk_func == ucontrol->value.enumerated.item[0])
197 return 0;
198
199 spitz_spk_func = ucontrol->value.enumerated.item[0];
200 spitz_ext_control(&card->dapm);
201 return 1;
202}
203
204static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
205 struct snd_kcontrol *k, int event)
206{
207 gpio_set_value_cansleep(spitz_mic_gpio, SND_SOC_DAPM_EVENT_ON(event));
208 return 0;
209}
210
211/* spitz machine dapm widgets */
212static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
213 SND_SOC_DAPM_HP("Headphone Jack", NULL),
214 SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
215 SND_SOC_DAPM_SPK("Ext Spk", NULL),
216 SND_SOC_DAPM_LINE("Line Jack", NULL),
217
218 /* headset is a mic and mono headphone */
219 SND_SOC_DAPM_HP("Headset Jack", NULL),
220};
221
222/* Spitz machine audio_map */
223static const struct snd_soc_dapm_route spitz_audio_map[] = {
224
225 /* headphone connected to LOUT1, ROUT1 */
226 {"Headphone Jack", NULL, "LOUT1"},
227 {"Headphone Jack", NULL, "ROUT1"},
228
229 /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
230 {"Headset Jack", NULL, "ROUT1"},
231
232 /* ext speaker connected to LOUT2, ROUT2 */
233 {"Ext Spk", NULL , "ROUT2"},
234 {"Ext Spk", NULL , "LOUT2"},
235
236 /* mic is connected to input 1 - with bias */
237 {"LINPUT1", NULL, "Mic Bias"},
238 {"Mic Bias", NULL, "Mic Jack"},
239
240 /* line is connected to input 1 - no bias */
241 {"LINPUT1", NULL, "Line Jack"},
242};
243
244static const char * const jack_function[] = {"Headphone", "Mic", "Line",
245 "Headset", "Off"};
246static const char * const spk_function[] = {"On", "Off"};
247static const struct soc_enum spitz_enum[] = {
248 SOC_ENUM_SINGLE_EXT(5, jack_function),
249 SOC_ENUM_SINGLE_EXT(2, spk_function),
250};
251
252static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
253 SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
254 spitz_set_jack),
255 SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
256 spitz_set_spk),
257};
258
259/* spitz digital audio interface glue - connects codec <--> CPU */
260static struct snd_soc_dai_link spitz_dai = {
261 .name = "wm8750",
262 .stream_name = "WM8750",
263 .cpu_dai_name = "pxa2xx-i2s",
264 .codec_dai_name = "wm8750-hifi",
265 .platform_name = "pxa-pcm-audio",
266 .codec_name = "wm8750.0-001b",
267 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
268 SND_SOC_DAIFMT_CBS_CFS,
269 .ops = &spitz_ops,
270};
271
272/* spitz audio machine driver */
273static struct snd_soc_card snd_soc_spitz = {
274 .name = "Spitz",
275 .owner = THIS_MODULE,
276 .dai_link = &spitz_dai,
277 .num_links = 1,
278
279 .controls = wm8750_spitz_controls,
280 .num_controls = ARRAY_SIZE(wm8750_spitz_controls),
281 .dapm_widgets = wm8750_dapm_widgets,
282 .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
283 .dapm_routes = spitz_audio_map,
284 .num_dapm_routes = ARRAY_SIZE(spitz_audio_map),
285 .fully_routed = true,
286};
287
288static int spitz_probe(struct platform_device *pdev)
289{
290 struct snd_soc_card *card = &snd_soc_spitz;
291 int ret;
292
293 if (machine_is_akita())
294 spitz_mic_gpio = AKITA_GPIO_MIC_BIAS;
295 else
296 spitz_mic_gpio = SPITZ_GPIO_MIC_BIAS;
297
298 ret = gpio_request(spitz_mic_gpio, "MIC GPIO");
299 if (ret)
300 goto err1;
301
302 ret = gpio_direction_output(spitz_mic_gpio, 0);
303 if (ret)
304 goto err2;
305
306 card->dev = &pdev->dev;
307
308 ret = devm_snd_soc_register_card(&pdev->dev, card);
309 if (ret) {
310 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
311 ret);
312 goto err2;
313 }
314
315 return 0;
316
317err2:
318 gpio_free(spitz_mic_gpio);
319err1:
320 return ret;
321}
322
323static int spitz_remove(struct platform_device *pdev)
324{
325 gpio_free(spitz_mic_gpio);
326 return 0;
327}
328
329static struct platform_driver spitz_driver = {
330 .driver = {
331 .name = "spitz-audio",
332 .pm = &snd_soc_pm_ops,
333 },
334 .probe = spitz_probe,
335 .remove = spitz_remove,
336};
337
338module_platform_driver(spitz_driver);
339
340MODULE_AUTHOR("Richard Purdie");
341MODULE_DESCRIPTION("ALSA SoC Spitz");
342MODULE_LICENSE("GPL");
343MODULE_ALIAS("platform:spitz-audio");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
4 *
5 * Copyright 2005 Wolfson Microelectronics PLC.
6 * Copyright 2005 Openedhand Ltd.
7 *
8 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
9 * Richard Purdie <richard@openedhand.com>
10 */
11
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/timer.h>
15#include <linux/interrupt.h>
16#include <linux/platform_device.h>
17#include <linux/gpio/consumer.h>
18#include <sound/core.h>
19#include <sound/pcm.h>
20#include <sound/soc.h>
21
22#include <asm/mach-types.h>
23#include "../codecs/wm8750.h"
24#include "pxa2xx-i2s.h"
25
26#define SPITZ_HP 0
27#define SPITZ_MIC 1
28#define SPITZ_LINE 2
29#define SPITZ_HEADSET 3
30#define SPITZ_HP_OFF 4
31#define SPITZ_SPK_ON 0
32#define SPITZ_SPK_OFF 1
33
34 /* audio clock in Hz - rounded from 12.235MHz */
35#define SPITZ_AUDIO_CLOCK 12288000
36
37static int spitz_jack_func;
38static int spitz_spk_func;
39static struct gpio_desc *gpiod_mic, *gpiod_mute_l, *gpiod_mute_r;
40
41static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
42{
43 snd_soc_dapm_mutex_lock(dapm);
44
45 if (spitz_spk_func == SPITZ_SPK_ON)
46 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
47 else
48 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
49
50 /* set up jack connection */
51 switch (spitz_jack_func) {
52 case SPITZ_HP:
53 /* enable and unmute hp jack, disable mic bias */
54 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
55 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
56 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
57 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
58 gpiod_set_value(gpiod_mute_l, 1);
59 gpiod_set_value(gpiod_mute_r, 1);
60 break;
61 case SPITZ_MIC:
62 /* enable mic jack and bias, mute hp */
63 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
64 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
65 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
66 snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
67 gpiod_set_value(gpiod_mute_l, 0);
68 gpiod_set_value(gpiod_mute_r, 0);
69 break;
70 case SPITZ_LINE:
71 /* enable line jack, disable mic bias and mute hp */
72 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
73 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
74 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
75 snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack");
76 gpiod_set_value(gpiod_mute_l, 0);
77 gpiod_set_value(gpiod_mute_r, 0);
78 break;
79 case SPITZ_HEADSET:
80 /* enable and unmute headset jack enable mic bias, mute L hp */
81 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
82 snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
83 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
84 snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
85 gpiod_set_value(gpiod_mute_l, 0);
86 gpiod_set_value(gpiod_mute_r, 1);
87 break;
88 case SPITZ_HP_OFF:
89
90 /* jack removed, everything off */
91 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
92 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
93 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
94 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
95 gpiod_set_value(gpiod_mute_l, 0);
96 gpiod_set_value(gpiod_mute_r, 0);
97 break;
98 }
99
100 snd_soc_dapm_sync_unlocked(dapm);
101
102 snd_soc_dapm_mutex_unlock(dapm);
103}
104
105static int spitz_startup(struct snd_pcm_substream *substream)
106{
107 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
108
109 /* check the jack status at stream startup */
110 spitz_ext_control(&rtd->card->dapm);
111
112 return 0;
113}
114
115static int spitz_hw_params(struct snd_pcm_substream *substream,
116 struct snd_pcm_hw_params *params)
117{
118 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
119 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
120 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
121 unsigned int clk = 0;
122 int ret = 0;
123
124 switch (params_rate(params)) {
125 case 8000:
126 case 16000:
127 case 48000:
128 case 96000:
129 clk = 12288000;
130 break;
131 case 11025:
132 case 22050:
133 case 44100:
134 clk = 11289600;
135 break;
136 }
137
138 /* set the codec system clock for DAC and ADC */
139 ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
140 SND_SOC_CLOCK_IN);
141 if (ret < 0)
142 return ret;
143
144 /* set the I2S system clock as input (unused) */
145 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
146 SND_SOC_CLOCK_IN);
147 if (ret < 0)
148 return ret;
149
150 return 0;
151}
152
153static const struct snd_soc_ops spitz_ops = {
154 .startup = spitz_startup,
155 .hw_params = spitz_hw_params,
156};
157
158static int spitz_get_jack(struct snd_kcontrol *kcontrol,
159 struct snd_ctl_elem_value *ucontrol)
160{
161 ucontrol->value.enumerated.item[0] = spitz_jack_func;
162 return 0;
163}
164
165static int spitz_set_jack(struct snd_kcontrol *kcontrol,
166 struct snd_ctl_elem_value *ucontrol)
167{
168 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
169
170 if (spitz_jack_func == ucontrol->value.enumerated.item[0])
171 return 0;
172
173 spitz_jack_func = ucontrol->value.enumerated.item[0];
174 spitz_ext_control(&card->dapm);
175 return 1;
176}
177
178static int spitz_get_spk(struct snd_kcontrol *kcontrol,
179 struct snd_ctl_elem_value *ucontrol)
180{
181 ucontrol->value.enumerated.item[0] = spitz_spk_func;
182 return 0;
183}
184
185static int spitz_set_spk(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
187{
188 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
189
190 if (spitz_spk_func == ucontrol->value.enumerated.item[0])
191 return 0;
192
193 spitz_spk_func = ucontrol->value.enumerated.item[0];
194 spitz_ext_control(&card->dapm);
195 return 1;
196}
197
198static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
199 struct snd_kcontrol *k, int event)
200{
201 gpiod_set_value_cansleep(gpiod_mic, SND_SOC_DAPM_EVENT_ON(event));
202 return 0;
203}
204
205/* spitz machine dapm widgets */
206static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
207 SND_SOC_DAPM_HP("Headphone Jack", NULL),
208 SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
209 SND_SOC_DAPM_SPK("Ext Spk", NULL),
210 SND_SOC_DAPM_LINE("Line Jack", NULL),
211
212 /* headset is a mic and mono headphone */
213 SND_SOC_DAPM_HP("Headset Jack", NULL),
214};
215
216/* Spitz machine audio_map */
217static const struct snd_soc_dapm_route spitz_audio_map[] = {
218
219 /* headphone connected to LOUT1, ROUT1 */
220 {"Headphone Jack", NULL, "LOUT1"},
221 {"Headphone Jack", NULL, "ROUT1"},
222
223 /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
224 {"Headset Jack", NULL, "ROUT1"},
225
226 /* ext speaker connected to LOUT2, ROUT2 */
227 {"Ext Spk", NULL, "ROUT2"},
228 {"Ext Spk", NULL, "LOUT2"},
229
230 /* mic is connected to input 1 - with bias */
231 {"LINPUT1", NULL, "Mic Bias"},
232 {"Mic Bias", NULL, "Mic Jack"},
233
234 /* line is connected to input 1 - no bias */
235 {"LINPUT1", NULL, "Line Jack"},
236};
237
238static const char * const jack_function[] = {"Headphone", "Mic", "Line",
239 "Headset", "Off"};
240static const char * const spk_function[] = {"On", "Off"};
241static const struct soc_enum spitz_enum[] = {
242 SOC_ENUM_SINGLE_EXT(5, jack_function),
243 SOC_ENUM_SINGLE_EXT(2, spk_function),
244};
245
246static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
247 SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
248 spitz_set_jack),
249 SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
250 spitz_set_spk),
251};
252
253/* spitz digital audio interface glue - connects codec <--> CPU */
254SND_SOC_DAILINK_DEFS(wm8750,
255 DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
256 DAILINK_COMP_ARRAY(COMP_CODEC("wm8750.0-001b", "wm8750-hifi")),
257 DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
258
259static struct snd_soc_dai_link spitz_dai = {
260 .name = "wm8750",
261 .stream_name = "WM8750",
262 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
263 SND_SOC_DAIFMT_CBS_CFS,
264 .ops = &spitz_ops,
265 SND_SOC_DAILINK_REG(wm8750),
266};
267
268/* spitz audio machine driver */
269static struct snd_soc_card snd_soc_spitz = {
270 .name = "Spitz",
271 .owner = THIS_MODULE,
272 .dai_link = &spitz_dai,
273 .num_links = 1,
274
275 .controls = wm8750_spitz_controls,
276 .num_controls = ARRAY_SIZE(wm8750_spitz_controls),
277 .dapm_widgets = wm8750_dapm_widgets,
278 .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
279 .dapm_routes = spitz_audio_map,
280 .num_dapm_routes = ARRAY_SIZE(spitz_audio_map),
281 .fully_routed = true,
282};
283
284static int spitz_probe(struct platform_device *pdev)
285{
286 struct snd_soc_card *card = &snd_soc_spitz;
287 int ret;
288
289 gpiod_mic = devm_gpiod_get(&pdev->dev, "mic", GPIOD_OUT_LOW);
290 if (IS_ERR(gpiod_mic))
291 return PTR_ERR(gpiod_mic);
292 gpiod_mute_l = devm_gpiod_get(&pdev->dev, "mute-l", GPIOD_OUT_LOW);
293 if (IS_ERR(gpiod_mute_l))
294 return PTR_ERR(gpiod_mute_l);
295 gpiod_mute_r = devm_gpiod_get(&pdev->dev, "mute-r", GPIOD_OUT_LOW);
296 if (IS_ERR(gpiod_mute_r))
297 return PTR_ERR(gpiod_mute_r);
298
299 card->dev = &pdev->dev;
300
301 ret = devm_snd_soc_register_card(&pdev->dev, card);
302 if (ret)
303 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
304 ret);
305
306 return ret;
307}
308
309static int spitz_remove(struct platform_device *pdev)
310{
311 return 0;
312}
313
314static struct platform_driver spitz_driver = {
315 .driver = {
316 .name = "spitz-audio",
317 .pm = &snd_soc_pm_ops,
318 },
319 .probe = spitz_probe,
320 .remove = spitz_remove,
321};
322
323module_platform_driver(spitz_driver);
324
325MODULE_AUTHOR("Richard Purdie");
326MODULE_DESCRIPTION("ALSA SoC Spitz");
327MODULE_LICENSE("GPL");
328MODULE_ALIAS("platform:spitz-audio");