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5df7f71d DM |
1 | /* |
2 | * tas2552.c - ALSA SoC Texas Instruments TAS2552 Mono Audio Amplifier | |
3 | * | |
4 | * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com | |
5 | * | |
6 | * Author: Dan Murphy <dmurphy@ti.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License | |
10 | * version 2 as published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/errno.h> | |
20 | #include <linux/device.h> | |
21 | #include <linux/i2c.h> | |
22 | #include <linux/gpio.h> | |
23 | #include <linux/of_gpio.h> | |
24 | #include <linux/pm_runtime.h> | |
25 | #include <linux/regmap.h> | |
26 | #include <linux/slab.h> | |
27 | ||
28 | #include <linux/gpio/consumer.h> | |
29 | #include <linux/regulator/consumer.h> | |
30 | ||
31 | #include <sound/pcm.h> | |
32 | #include <sound/pcm_params.h> | |
33 | #include <sound/soc.h> | |
34 | #include <sound/soc-dapm.h> | |
35 | #include <sound/tlv.h> | |
36 | #include <sound/tas2552-plat.h> | |
37 | ||
38 | #include "tas2552.h" | |
39 | ||
40 | static struct reg_default tas2552_reg_defs[] = { | |
41 | {TAS2552_CFG_1, 0x22}, | |
42 | {TAS2552_CFG_3, 0x80}, | |
43 | {TAS2552_DOUT, 0x00}, | |
44 | {TAS2552_OUTPUT_DATA, 0xc0}, | |
45 | {TAS2552_PDM_CFG, 0x01}, | |
46 | {TAS2552_PGA_GAIN, 0x00}, | |
47 | {TAS2552_BOOST_PT_CTRL, 0x0f}, | |
48 | {TAS2552_RESERVED_0D, 0x00}, | |
49 | {TAS2552_LIMIT_RATE_HYS, 0x08}, | |
50 | {TAS2552_CFG_2, 0xef}, | |
51 | {TAS2552_SER_CTRL_1, 0x00}, | |
52 | {TAS2552_SER_CTRL_2, 0x00}, | |
53 | {TAS2552_PLL_CTRL_1, 0x10}, | |
54 | {TAS2552_PLL_CTRL_2, 0x00}, | |
55 | {TAS2552_PLL_CTRL_3, 0x00}, | |
56 | {TAS2552_BTIP, 0x8f}, | |
57 | {TAS2552_BTS_CTRL, 0x80}, | |
58 | {TAS2552_LIMIT_RELEASE, 0x04}, | |
59 | {TAS2552_LIMIT_INT_COUNT, 0x00}, | |
60 | {TAS2552_EDGE_RATE_CTRL, 0x40}, | |
61 | {TAS2552_VBAT_DATA, 0x00}, | |
62 | }; | |
63 | ||
64 | #define TAS2552_NUM_SUPPLIES 3 | |
65 | static const char *tas2552_supply_names[TAS2552_NUM_SUPPLIES] = { | |
66 | "vbat", /* vbat voltage */ | |
67 | "iovdd", /* I/O Voltage */ | |
68 | "avdd", /* Analog DAC Voltage */ | |
69 | }; | |
70 | ||
71 | struct tas2552_data { | |
72 | struct snd_soc_codec *codec; | |
73 | struct regmap *regmap; | |
74 | struct i2c_client *tas2552_client; | |
75 | struct regulator_bulk_data supplies[TAS2552_NUM_SUPPLIES]; | |
76 | struct gpio_desc *enable_gpio; | |
77 | unsigned char regs[TAS2552_VBAT_DATA]; | |
78 | unsigned int mclk; | |
79 | }; | |
80 | ||
a7a8e994 DM |
81 | /* Input mux controls */ |
82 | static const char *tas2552_input_texts[] = { | |
83 | "Digital", "Analog" | |
84 | }; | |
85 | ||
86 | static SOC_ENUM_SINGLE_DECL(tas2552_input_mux_enum, TAS2552_CFG_3, 7, | |
87 | tas2552_input_texts); | |
88 | ||
89 | static const struct snd_kcontrol_new tas2552_input_mux_control[] = { | |
90 | SOC_DAPM_ENUM("Input selection", tas2552_input_mux_enum) | |
91 | }; | |
92 | ||
93 | static const struct snd_soc_dapm_widget tas2552_dapm_widgets[] = | |
94 | { | |
95 | SND_SOC_DAPM_INPUT("IN"), | |
96 | ||
97 | /* MUX Controls */ | |
98 | SND_SOC_DAPM_MUX("Input selection", SND_SOC_NOPM, 0, 0, | |
99 | tas2552_input_mux_control), | |
100 | ||
101 | SND_SOC_DAPM_AIF_IN("DAC IN", "DAC Playback", 0, SND_SOC_NOPM, 0, 0), | |
102 | SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), | |
103 | SND_SOC_DAPM_OUT_DRV("ClassD", TAS2552_CFG_2, 7, 0, NULL, 0), | |
104 | SND_SOC_DAPM_SUPPLY("PLL", TAS2552_CFG_2, 3, 0, NULL, 0), | |
105 | ||
106 | SND_SOC_DAPM_OUTPUT("OUT") | |
107 | }; | |
108 | ||
109 | static const struct snd_soc_dapm_route tas2552_audio_map[] = { | |
110 | {"DAC", NULL, "DAC IN"}, | |
111 | {"Input selection", "Digital", "DAC"}, | |
112 | {"Input selection", "Analog", "IN"}, | |
113 | {"ClassD", NULL, "Input selection"}, | |
114 | {"OUT", NULL, "ClassD"}, | |
115 | {"ClassD", NULL, "PLL"}, | |
116 | }; | |
117 | ||
be1aa3ea | 118 | #ifdef CONFIG_PM_RUNTIME |
5df7f71d DM |
119 | static void tas2552_sw_shutdown(struct tas2552_data *tas_data, int sw_shutdown) |
120 | { | |
121 | u8 cfg1_reg; | |
122 | ||
123 | if (sw_shutdown) | |
124 | cfg1_reg = 0; | |
125 | else | |
126 | cfg1_reg = TAS2552_SWS_MASK; | |
127 | ||
128 | snd_soc_update_bits(tas_data->codec, TAS2552_CFG_1, | |
129 | TAS2552_SWS_MASK, cfg1_reg); | |
130 | } | |
be1aa3ea | 131 | #endif |
5df7f71d DM |
132 | |
133 | static int tas2552_hw_params(struct snd_pcm_substream *substream, | |
134 | struct snd_pcm_hw_params *params, | |
135 | struct snd_soc_dai *dai) | |
136 | { | |
137 | struct snd_soc_codec *codec = dai->codec; | |
138 | struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev); | |
139 | int sample_rate, pll_clk; | |
140 | int d; | |
141 | u8 p, j; | |
142 | ||
5df7f71d DM |
143 | if (!tas2552->mclk) |
144 | return -EINVAL; | |
145 | ||
146 | snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE, 0); | |
147 | ||
148 | if (tas2552->mclk == TAS2552_245MHZ_CLK || | |
149 | tas2552->mclk == TAS2552_225MHZ_CLK) { | |
150 | /* By pass the PLL configuration */ | |
151 | snd_soc_update_bits(codec, TAS2552_PLL_CTRL_2, | |
152 | TAS2552_PLL_BYPASS_MASK, | |
153 | TAS2552_PLL_BYPASS); | |
154 | } else { | |
155 | /* Fill in the PLL control registers for J & D | |
156 | * PLL_CLK = (.5 * freq * J.D) / 2^p | |
157 | * Need to fill in J and D here based on incoming freq | |
158 | */ | |
159 | p = snd_soc_read(codec, TAS2552_PLL_CTRL_1); | |
160 | p = (p >> 7); | |
161 | sample_rate = params_rate(params); | |
162 | ||
163 | if (sample_rate == 48000) | |
164 | pll_clk = TAS2552_245MHZ_CLK; | |
165 | else if (sample_rate == 44100) | |
166 | pll_clk = TAS2552_225MHZ_CLK; | |
167 | else { | |
168 | dev_vdbg(codec->dev, "Substream sample rate is not found %i\n", | |
169 | params_rate(params)); | |
170 | return -EINVAL; | |
171 | } | |
172 | ||
173 | j = (pll_clk * 2 * (1 << p)) / tas2552->mclk; | |
174 | d = (pll_clk * 2 * (1 << p)) % tas2552->mclk; | |
175 | ||
176 | snd_soc_update_bits(codec, TAS2552_PLL_CTRL_1, | |
177 | TAS2552_PLL_J_MASK, j); | |
178 | snd_soc_write(codec, TAS2552_PLL_CTRL_2, | |
179 | (d >> 7) & TAS2552_PLL_D_UPPER_MASK); | |
180 | snd_soc_write(codec, TAS2552_PLL_CTRL_3, | |
181 | d & TAS2552_PLL_D_LOWER_MASK); | |
182 | ||
183 | } | |
184 | ||
5df7f71d DM |
185 | return 0; |
186 | } | |
187 | ||
188 | static int tas2552_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
189 | { | |
190 | struct snd_soc_codec *codec = dai->codec; | |
191 | u8 serial_format; | |
192 | u8 serial_control_mask; | |
193 | ||
194 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
195 | case SND_SOC_DAIFMT_CBS_CFS: | |
196 | serial_format = 0x00; | |
197 | break; | |
198 | case SND_SOC_DAIFMT_CBS_CFM: | |
199 | serial_format = TAS2552_WORD_CLK_MASK; | |
200 | break; | |
201 | case SND_SOC_DAIFMT_CBM_CFS: | |
202 | serial_format = TAS2552_BIT_CLK_MASK; | |
203 | break; | |
204 | case SND_SOC_DAIFMT_CBM_CFM: | |
205 | serial_format = (TAS2552_BIT_CLK_MASK | TAS2552_WORD_CLK_MASK); | |
206 | break; | |
207 | default: | |
208 | dev_vdbg(codec->dev, "DAI Format master is not found\n"); | |
209 | return -EINVAL; | |
210 | } | |
211 | ||
212 | serial_control_mask = TAS2552_BIT_CLK_MASK | TAS2552_WORD_CLK_MASK; | |
213 | ||
214 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
215 | case SND_SOC_DAIFMT_I2S: | |
216 | serial_format &= TAS2552_DAIFMT_I2S_MASK; | |
217 | break; | |
218 | case SND_SOC_DAIFMT_DSP_A: | |
219 | serial_format |= TAS2552_DAIFMT_DSP; | |
220 | break; | |
221 | case SND_SOC_DAIFMT_RIGHT_J: | |
222 | serial_format |= TAS2552_DAIFMT_RIGHT_J; | |
223 | break; | |
224 | case SND_SOC_DAIFMT_LEFT_J: | |
225 | serial_format |= TAS2552_DAIFMT_LEFT_J; | |
226 | break; | |
227 | default: | |
228 | dev_vdbg(codec->dev, "DAI Format is not found\n"); | |
229 | return -EINVAL; | |
230 | } | |
231 | ||
232 | if (fmt & SND_SOC_DAIFMT_FORMAT_MASK) | |
233 | serial_control_mask |= TAS2552_DATA_FORMAT_MASK; | |
234 | ||
235 | snd_soc_update_bits(codec, TAS2552_SER_CTRL_1, serial_control_mask, | |
236 | serial_format); | |
237 | ||
238 | return 0; | |
239 | } | |
240 | ||
241 | static int tas2552_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, | |
242 | unsigned int freq, int dir) | |
243 | { | |
244 | struct snd_soc_codec *codec = dai->codec; | |
245 | struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev); | |
246 | ||
247 | tas2552->mclk = freq; | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
252 | static int tas2552_mute(struct snd_soc_dai *dai, int mute) | |
253 | { | |
254 | u8 cfg1_reg; | |
255 | struct snd_soc_codec *codec = dai->codec; | |
256 | ||
257 | if (mute) | |
258 | cfg1_reg = TAS2552_MUTE_MASK; | |
259 | else | |
260 | cfg1_reg = ~TAS2552_MUTE_MASK; | |
261 | ||
262 | snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_MUTE_MASK, cfg1_reg); | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | #ifdef CONFIG_PM_RUNTIME | |
268 | static int tas2552_runtime_suspend(struct device *dev) | |
269 | { | |
270 | struct tas2552_data *tas2552 = dev_get_drvdata(dev); | |
271 | ||
272 | tas2552_sw_shutdown(tas2552, 0); | |
273 | ||
5df7f71d DM |
274 | regcache_cache_only(tas2552->regmap, true); |
275 | regcache_mark_dirty(tas2552->regmap); | |
276 | ||
e295a4a4 DM |
277 | if (tas2552->enable_gpio) |
278 | gpiod_set_value(tas2552->enable_gpio, 0); | |
279 | ||
5df7f71d DM |
280 | return 0; |
281 | } | |
282 | ||
283 | static int tas2552_runtime_resume(struct device *dev) | |
284 | { | |
285 | struct tas2552_data *tas2552 = dev_get_drvdata(dev); | |
286 | ||
287 | if (tas2552->enable_gpio) | |
288 | gpiod_set_value(tas2552->enable_gpio, 1); | |
289 | ||
290 | tas2552_sw_shutdown(tas2552, 1); | |
291 | ||
292 | regcache_cache_only(tas2552->regmap, false); | |
293 | regcache_sync(tas2552->regmap); | |
294 | ||
295 | return 0; | |
296 | } | |
297 | #endif | |
298 | ||
299 | static const struct dev_pm_ops tas2552_pm = { | |
300 | SET_RUNTIME_PM_OPS(tas2552_runtime_suspend, tas2552_runtime_resume, | |
301 | NULL) | |
302 | }; | |
303 | ||
5df7f71d DM |
304 | static struct snd_soc_dai_ops tas2552_speaker_dai_ops = { |
305 | .hw_params = tas2552_hw_params, | |
306 | .set_sysclk = tas2552_set_dai_sysclk, | |
307 | .set_fmt = tas2552_set_dai_fmt, | |
5df7f71d DM |
308 | .digital_mute = tas2552_mute, |
309 | }; | |
310 | ||
311 | /* Formats supported by TAS2552 driver. */ | |
312 | #define TAS2552_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
313 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
314 | ||
315 | /* TAS2552 dai structure. */ | |
316 | static struct snd_soc_dai_driver tas2552_dai[] = { | |
317 | { | |
318 | .name = "tas2552-amplifier", | |
319 | .playback = { | |
a7a8e994 | 320 | .stream_name = "Playback", |
5df7f71d DM |
321 | .channels_min = 2, |
322 | .channels_max = 2, | |
323 | .rates = SNDRV_PCM_RATE_8000_192000, | |
324 | .formats = TAS2552_FORMATS, | |
325 | }, | |
326 | .ops = &tas2552_speaker_dai_ops, | |
327 | }, | |
328 | }; | |
329 | ||
330 | /* | |
331 | * DAC digital volumes. From -7 to 24 dB in 1 dB steps | |
332 | */ | |
333 | static DECLARE_TLV_DB_SCALE(dac_tlv, -7, 100, 24); | |
334 | ||
335 | static const struct snd_kcontrol_new tas2552_snd_controls[] = { | |
336 | SOC_SINGLE_TLV("Speaker Driver Playback Volume", | |
337 | TAS2552_PGA_GAIN, 0, 0x1f, 1, dac_tlv), | |
a7a8e994 | 338 | SOC_DAPM_SINGLE("Playback AMP", SND_SOC_NOPM, 0, 1, 0), |
5df7f71d DM |
339 | }; |
340 | ||
341 | static const struct reg_default tas2552_init_regs[] = { | |
342 | { TAS2552_RESERVED_0D, 0xc0 }, | |
343 | }; | |
344 | ||
345 | static int tas2552_codec_probe(struct snd_soc_codec *codec) | |
346 | { | |
347 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); | |
a7a8e994 | 348 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
5df7f71d DM |
349 | int ret; |
350 | ||
351 | tas2552->codec = codec; | |
352 | ||
353 | ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies), | |
354 | tas2552->supplies); | |
355 | ||
356 | if (ret != 0) { | |
357 | dev_err(codec->dev, "Failed to enable supplies: %d\n", | |
358 | ret); | |
359 | return ret; | |
360 | } | |
361 | ||
362 | if (tas2552->enable_gpio) | |
363 | gpiod_set_value(tas2552->enable_gpio, 1); | |
364 | ||
365 | ret = pm_runtime_get_sync(codec->dev); | |
366 | if (ret < 0) { | |
367 | dev_err(codec->dev, "Enabling device failed: %d\n", | |
368 | ret); | |
369 | goto probe_fail; | |
370 | } | |
371 | ||
372 | snd_soc_write(codec, TAS2552_CFG_1, TAS2552_MUTE_MASK | | |
373 | TAS2552_PLL_SRC_BCLK); | |
374 | snd_soc_write(codec, TAS2552_CFG_3, TAS2552_I2S_OUT_SEL | | |
375 | TAS2552_DIN_SRC_SEL_AVG_L_R | TAS2552_88_96KHZ); | |
376 | snd_soc_write(codec, TAS2552_DOUT, TAS2552_PDM_DATA_I); | |
377 | snd_soc_write(codec, TAS2552_OUTPUT_DATA, TAS2552_PDM_DATA_V_I | 0x8); | |
378 | snd_soc_write(codec, TAS2552_PDM_CFG, TAS2552_PDM_BCLK_SEL); | |
379 | snd_soc_write(codec, TAS2552_BOOST_PT_CTRL, TAS2552_APT_DELAY_200 | | |
380 | TAS2552_APT_THRESH_2_1_7); | |
381 | ||
382 | ret = regmap_register_patch(tas2552->regmap, tas2552_init_regs, | |
383 | ARRAY_SIZE(tas2552_init_regs)); | |
384 | if (ret != 0) { | |
385 | dev_err(codec->dev, "Failed to write init registers: %d\n", | |
386 | ret); | |
387 | goto patch_fail; | |
388 | } | |
389 | ||
a7a8e994 DM |
390 | snd_soc_write(codec, TAS2552_CFG_2, TAS2552_BOOST_EN | |
391 | TAS2552_APT_EN | TAS2552_LIM_EN); | |
392 | ||
393 | snd_soc_dapm_new_controls(dapm, tas2552_dapm_widgets, | |
394 | ARRAY_SIZE(tas2552_dapm_widgets)); | |
395 | snd_soc_dapm_add_routes(dapm, tas2552_audio_map, | |
396 | ARRAY_SIZE(tas2552_audio_map)); | |
397 | ||
5df7f71d DM |
398 | return 0; |
399 | ||
400 | patch_fail: | |
401 | pm_runtime_put(codec->dev); | |
402 | probe_fail: | |
403 | if (tas2552->enable_gpio) | |
404 | gpiod_set_value(tas2552->enable_gpio, 0); | |
405 | ||
406 | regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies), | |
407 | tas2552->supplies); | |
408 | return -EIO; | |
409 | } | |
410 | ||
411 | static int tas2552_codec_remove(struct snd_soc_codec *codec) | |
412 | { | |
413 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); | |
414 | ||
e295a4a4 DM |
415 | pm_runtime_put(codec->dev); |
416 | ||
5df7f71d DM |
417 | if (tas2552->enable_gpio) |
418 | gpiod_set_value(tas2552->enable_gpio, 0); | |
419 | ||
420 | return 0; | |
421 | }; | |
422 | ||
423 | #ifdef CONFIG_PM | |
424 | static int tas2552_suspend(struct snd_soc_codec *codec) | |
425 | { | |
426 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); | |
427 | int ret; | |
428 | ||
429 | ret = regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies), | |
430 | tas2552->supplies); | |
431 | ||
432 | if (ret != 0) | |
433 | dev_err(codec->dev, "Failed to disable supplies: %d\n", | |
434 | ret); | |
435 | return 0; | |
436 | } | |
437 | ||
438 | static int tas2552_resume(struct snd_soc_codec *codec) | |
439 | { | |
440 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); | |
441 | int ret; | |
442 | ||
443 | ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies), | |
444 | tas2552->supplies); | |
445 | ||
446 | if (ret != 0) { | |
447 | dev_err(codec->dev, "Failed to enable supplies: %d\n", | |
448 | ret); | |
449 | } | |
450 | ||
451 | return 0; | |
452 | } | |
453 | #else | |
454 | #define tas2552_suspend NULL | |
455 | #define tas2552_resume NULL | |
456 | #endif | |
457 | ||
458 | static struct snd_soc_codec_driver soc_codec_dev_tas2552 = { | |
459 | .probe = tas2552_codec_probe, | |
460 | .remove = tas2552_codec_remove, | |
461 | .suspend = tas2552_suspend, | |
462 | .resume = tas2552_resume, | |
463 | .controls = tas2552_snd_controls, | |
464 | .num_controls = ARRAY_SIZE(tas2552_snd_controls), | |
465 | }; | |
466 | ||
467 | static const struct regmap_config tas2552_regmap_config = { | |
468 | .reg_bits = 8, | |
469 | .val_bits = 8, | |
470 | ||
471 | .max_register = TAS2552_MAX_REG, | |
472 | .reg_defaults = tas2552_reg_defs, | |
473 | .num_reg_defaults = ARRAY_SIZE(tas2552_reg_defs), | |
474 | .cache_type = REGCACHE_RBTREE, | |
475 | }; | |
476 | ||
477 | static int tas2552_probe(struct i2c_client *client, | |
478 | const struct i2c_device_id *id) | |
479 | { | |
480 | struct device *dev; | |
481 | struct tas2552_data *data; | |
482 | int ret; | |
483 | int i; | |
484 | ||
485 | dev = &client->dev; | |
486 | data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); | |
487 | if (data == NULL) | |
488 | return -ENOMEM; | |
489 | ||
490 | data->enable_gpio = devm_gpiod_get(dev, "enable"); | |
491 | if (IS_ERR(data->enable_gpio)) { | |
492 | ret = PTR_ERR(data->enable_gpio); | |
493 | if (ret != -ENOENT && ret != -ENOSYS) | |
494 | return ret; | |
495 | ||
496 | data->enable_gpio = NULL; | |
497 | } else { | |
498 | gpiod_direction_output(data->enable_gpio, 0); | |
499 | } | |
500 | ||
501 | data->tas2552_client = client; | |
502 | data->regmap = devm_regmap_init_i2c(client, &tas2552_regmap_config); | |
503 | if (IS_ERR(data->regmap)) { | |
504 | ret = PTR_ERR(data->regmap); | |
505 | dev_err(&client->dev, "Failed to allocate register map: %d\n", | |
506 | ret); | |
507 | return ret; | |
508 | } | |
509 | ||
510 | for (i = 0; i < ARRAY_SIZE(data->supplies); i++) | |
511 | data->supplies[i].supply = tas2552_supply_names[i]; | |
512 | ||
513 | ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies), | |
514 | data->supplies); | |
c62f9d8f | 515 | if (ret != 0) { |
5df7f71d | 516 | dev_err(dev, "Failed to request supplies: %d\n", ret); |
c62f9d8f AL |
517 | return ret; |
518 | } | |
5df7f71d DM |
519 | |
520 | pm_runtime_set_active(&client->dev); | |
521 | pm_runtime_set_autosuspend_delay(&client->dev, 1000); | |
522 | pm_runtime_use_autosuspend(&client->dev); | |
523 | pm_runtime_enable(&client->dev); | |
524 | pm_runtime_mark_last_busy(&client->dev); | |
525 | pm_runtime_put_sync_autosuspend(&client->dev); | |
526 | ||
527 | dev_set_drvdata(&client->dev, data); | |
528 | ||
529 | ret = snd_soc_register_codec(&client->dev, | |
530 | &soc_codec_dev_tas2552, | |
531 | tas2552_dai, ARRAY_SIZE(tas2552_dai)); | |
532 | if (ret < 0) | |
533 | dev_err(&client->dev, "Failed to register codec: %d\n", ret); | |
534 | ||
c62f9d8f | 535 | return ret; |
5df7f71d DM |
536 | } |
537 | ||
538 | static int tas2552_i2c_remove(struct i2c_client *client) | |
539 | { | |
540 | snd_soc_unregister_codec(&client->dev); | |
541 | return 0; | |
542 | } | |
543 | ||
544 | static const struct i2c_device_id tas2552_id[] = { | |
545 | { "tas2552", 0 }, | |
546 | { } | |
547 | }; | |
548 | MODULE_DEVICE_TABLE(i2c, tas2552_id); | |
549 | ||
550 | #if IS_ENABLED(CONFIG_OF) | |
551 | static const struct of_device_id tas2552_of_match[] = { | |
552 | { .compatible = "ti,tas2552", }, | |
553 | {}, | |
554 | }; | |
555 | MODULE_DEVICE_TABLE(of, tas2552_of_match); | |
556 | #endif | |
557 | ||
558 | static struct i2c_driver tas2552_i2c_driver = { | |
559 | .driver = { | |
560 | .name = "tas2552", | |
561 | .owner = THIS_MODULE, | |
562 | .of_match_table = of_match_ptr(tas2552_of_match), | |
563 | .pm = &tas2552_pm, | |
564 | }, | |
565 | .probe = tas2552_probe, | |
566 | .remove = tas2552_i2c_remove, | |
567 | .id_table = tas2552_id, | |
568 | }; | |
569 | ||
570 | module_i2c_driver(tas2552_i2c_driver); | |
571 | ||
572 | MODULE_AUTHOR("Dan Muprhy <dmurphy@ti.com>"); | |
573 | MODULE_DESCRIPTION("TAS2552 Audio amplifier driver"); | |
574 | MODULE_LICENSE("GPL"); |