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decbc00e Z |
1 | /* |
2 | * Driver of Inno codec for rk3036 by Rockchip Inc. | |
3 | * | |
4 | * Author: Rockchip Inc. | |
5 | * Author: Zheng ShunQian<zhengsq@rock-chips.com> | |
6 | */ | |
7 | ||
8 | #include <sound/soc.h> | |
9 | #include <sound/tlv.h> | |
10 | #include <sound/soc-dapm.h> | |
11 | #include <sound/soc-dai.h> | |
12 | #include <sound/pcm.h> | |
13 | #include <sound/pcm_params.h> | |
14 | ||
15 | #include <linux/platform_device.h> | |
16 | #include <linux/of.h> | |
17 | #include <linux/clk.h> | |
18 | #include <linux/regmap.h> | |
19 | #include <linux/device.h> | |
20 | #include <linux/mfd/syscon.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/io.h> | |
23 | ||
24 | #include "inno_rk3036.h" | |
25 | ||
26 | struct rk3036_codec_priv { | |
27 | void __iomem *base; | |
28 | struct clk *pclk; | |
29 | struct regmap *regmap; | |
30 | struct device *dev; | |
31 | }; | |
32 | ||
33 | static const DECLARE_TLV_DB_MINMAX(rk3036_codec_hp_tlv, -39, 0); | |
34 | ||
35 | static int rk3036_codec_antipop_info(struct snd_kcontrol *kcontrol, | |
36 | struct snd_ctl_elem_info *uinfo) | |
37 | { | |
38 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
39 | uinfo->count = 2; | |
40 | uinfo->value.integer.min = 0; | |
41 | uinfo->value.integer.max = 1; | |
42 | ||
43 | return 0; | |
44 | } | |
45 | ||
46 | static int rk3036_codec_antipop_get(struct snd_kcontrol *kcontrol, | |
47 | struct snd_ctl_elem_value *ucontrol) | |
48 | { | |
49 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
50 | int val, ret, regval; | |
51 | ||
52 | ret = snd_soc_component_read(component, INNO_R09, ®val); | |
53 | if (ret) | |
54 | return ret; | |
55 | val = ((regval >> INNO_R09_HPL_ANITPOP_SHIFT) & | |
56 | INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON; | |
57 | ucontrol->value.integer.value[0] = val; | |
58 | ||
59 | val = ((regval >> INNO_R09_HPR_ANITPOP_SHIFT) & | |
60 | INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON; | |
61 | ucontrol->value.integer.value[1] = val; | |
62 | ||
63 | return 0; | |
64 | } | |
65 | ||
66 | static int rk3036_codec_antipop_put(struct snd_kcontrol *kcontrol, | |
67 | struct snd_ctl_elem_value *ucontrol) | |
68 | { | |
69 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
70 | int val, ret, regmsk; | |
71 | ||
72 | val = (ucontrol->value.integer.value[0] ? | |
73 | INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) << | |
74 | INNO_R09_HPL_ANITPOP_SHIFT; | |
75 | val |= (ucontrol->value.integer.value[1] ? | |
76 | INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) << | |
77 | INNO_R09_HPR_ANITPOP_SHIFT; | |
78 | ||
79 | regmsk = INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPL_ANITPOP_SHIFT | | |
80 | INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPR_ANITPOP_SHIFT; | |
81 | ||
82 | ret = snd_soc_component_update_bits(component, INNO_R09, | |
83 | regmsk, val); | |
84 | if (ret < 0) | |
85 | return ret; | |
86 | ||
87 | return 0; | |
88 | } | |
89 | ||
90 | #define SOC_RK3036_CODEC_ANTIPOP_DECL(xname) \ | |
91 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
92 | .info = rk3036_codec_antipop_info, .get = rk3036_codec_antipop_get, \ | |
93 | .put = rk3036_codec_antipop_put, } | |
94 | ||
95 | static const struct snd_kcontrol_new rk3036_codec_dapm_controls[] = { | |
96 | SOC_DOUBLE_R_RANGE_TLV("Headphone Volume", INNO_R07, INNO_R08, | |
97 | INNO_HP_GAIN_SHIFT, INNO_HP_GAIN_N39DB, | |
98 | INNO_HP_GAIN_0DB, 0, rk3036_codec_hp_tlv), | |
99 | SOC_DOUBLE("Zero Cross Switch", INNO_R06, INNO_R06_VOUTL_CZ_SHIFT, | |
100 | INNO_R06_VOUTR_CZ_SHIFT, 1, 0), | |
101 | SOC_DOUBLE("Headphone Switch", INNO_R09, INNO_R09_HPL_MUTE_SHIFT, | |
102 | INNO_R09_HPR_MUTE_SHIFT, 1, 0), | |
103 | SOC_RK3036_CODEC_ANTIPOP_DECL("Anti-pop Switch"), | |
104 | }; | |
105 | ||
106 | static const struct snd_kcontrol_new rk3036_codec_hpl_mixer_controls[] = { | |
107 | SOC_DAPM_SINGLE("DAC Left Out Switch", INNO_R09, | |
108 | INNO_R09_DACL_SWITCH_SHIFT, 1, 0), | |
109 | }; | |
110 | ||
111 | static const struct snd_kcontrol_new rk3036_codec_hpr_mixer_controls[] = { | |
112 | SOC_DAPM_SINGLE("DAC Right Out Switch", INNO_R09, | |
113 | INNO_R09_DACR_SWITCH_SHIFT, 1, 0), | |
114 | }; | |
115 | ||
116 | static const struct snd_kcontrol_new rk3036_codec_hpl_switch_controls[] = { | |
117 | SOC_DAPM_SINGLE("HP Left Out Switch", INNO_R05, | |
118 | INNO_R05_HPL_WORK_SHIFT, 1, 0), | |
119 | }; | |
120 | ||
121 | static const struct snd_kcontrol_new rk3036_codec_hpr_switch_controls[] = { | |
122 | SOC_DAPM_SINGLE("HP Right Out Switch", INNO_R05, | |
123 | INNO_R05_HPR_WORK_SHIFT, 1, 0), | |
124 | }; | |
125 | ||
126 | static const struct snd_soc_dapm_widget rk3036_codec_dapm_widgets[] = { | |
127 | SND_SOC_DAPM_SUPPLY_S("DAC PWR", 1, INNO_R06, | |
128 | INNO_R06_DAC_EN_SHIFT, 0, NULL, 0), | |
129 | SND_SOC_DAPM_SUPPLY_S("DACL VREF", 2, INNO_R04, | |
130 | INNO_R04_DACL_VREF_SHIFT, 0, NULL, 0), | |
131 | SND_SOC_DAPM_SUPPLY_S("DACR VREF", 2, INNO_R04, | |
132 | INNO_R04_DACR_VREF_SHIFT, 0, NULL, 0), | |
133 | SND_SOC_DAPM_SUPPLY_S("DACL HiLo VREF", 3, INNO_R06, | |
134 | INNO_R06_DACL_HILO_VREF_SHIFT, 0, NULL, 0), | |
135 | SND_SOC_DAPM_SUPPLY_S("DACR HiLo VREF", 3, INNO_R06, | |
136 | INNO_R06_DACR_HILO_VREF_SHIFT, 0, NULL, 0), | |
137 | SND_SOC_DAPM_SUPPLY_S("DACR CLK", 3, INNO_R04, | |
138 | INNO_R04_DACR_CLK_SHIFT, 0, NULL, 0), | |
139 | SND_SOC_DAPM_SUPPLY_S("DACL CLK", 3, INNO_R04, | |
140 | INNO_R04_DACL_CLK_SHIFT, 0, NULL, 0), | |
141 | ||
142 | SND_SOC_DAPM_DAC("DACL", "Left Playback", INNO_R04, | |
143 | INNO_R04_DACL_SW_SHIFT, 0), | |
144 | SND_SOC_DAPM_DAC("DACR", "Right Playback", INNO_R04, | |
145 | INNO_R04_DACR_SW_SHIFT, 0), | |
146 | ||
147 | SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0, | |
148 | rk3036_codec_hpl_mixer_controls, | |
149 | ARRAY_SIZE(rk3036_codec_hpl_mixer_controls)), | |
150 | SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0, | |
151 | rk3036_codec_hpr_mixer_controls, | |
152 | ARRAY_SIZE(rk3036_codec_hpr_mixer_controls)), | |
153 | ||
154 | SND_SOC_DAPM_PGA("HP Left Out", INNO_R05, | |
155 | INNO_R05_HPL_EN_SHIFT, 0, NULL, 0), | |
156 | SND_SOC_DAPM_PGA("HP Right Out", INNO_R05, | |
157 | INNO_R05_HPR_EN_SHIFT, 0, NULL, 0), | |
158 | ||
159 | SND_SOC_DAPM_MIXER("HP Left Switch", SND_SOC_NOPM, 0, 0, | |
160 | rk3036_codec_hpl_switch_controls, | |
161 | ARRAY_SIZE(rk3036_codec_hpl_switch_controls)), | |
162 | SND_SOC_DAPM_MIXER("HP Right Switch", SND_SOC_NOPM, 0, 0, | |
163 | rk3036_codec_hpr_switch_controls, | |
164 | ARRAY_SIZE(rk3036_codec_hpr_switch_controls)), | |
165 | ||
166 | SND_SOC_DAPM_OUTPUT("HPL"), | |
167 | SND_SOC_DAPM_OUTPUT("HPR"), | |
168 | }; | |
169 | ||
170 | static const struct snd_soc_dapm_route rk3036_codec_dapm_routes[] = { | |
171 | {"DACL VREF", NULL, "DAC PWR"}, | |
172 | {"DACR VREF", NULL, "DAC PWR"}, | |
173 | {"DACL HiLo VREF", NULL, "DAC PWR"}, | |
174 | {"DACR HiLo VREF", NULL, "DAC PWR"}, | |
175 | {"DACL CLK", NULL, "DAC PWR"}, | |
176 | {"DACR CLK", NULL, "DAC PWR"}, | |
177 | ||
178 | {"DACL", NULL, "DACL VREF"}, | |
179 | {"DACL", NULL, "DACL HiLo VREF"}, | |
180 | {"DACL", NULL, "DACL CLK"}, | |
181 | {"DACR", NULL, "DACR VREF"}, | |
182 | {"DACR", NULL, "DACR HiLo VREF"}, | |
183 | {"DACR", NULL, "DACR CLK"}, | |
184 | ||
185 | {"Left Headphone Mixer", "DAC Left Out Switch", "DACL"}, | |
186 | {"Right Headphone Mixer", "DAC Right Out Switch", "DACR"}, | |
187 | {"HP Left Out", NULL, "Left Headphone Mixer"}, | |
188 | {"HP Right Out", NULL, "Right Headphone Mixer"}, | |
189 | ||
190 | {"HP Left Switch", "HP Left Out Switch", "HP Left Out"}, | |
191 | {"HP Right Switch", "HP Right Out Switch", "HP Right Out"}, | |
192 | ||
193 | {"HPL", NULL, "HP Left Switch"}, | |
194 | {"HPR", NULL, "HP Right Switch"}, | |
195 | }; | |
196 | ||
197 | static int rk3036_codec_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
198 | { | |
199 | struct snd_soc_codec *codec = dai->codec; | |
200 | unsigned int reg01_val = 0, reg02_val = 0, reg03_val = 0; | |
201 | ||
202 | dev_dbg(codec->dev, "rk3036_codec dai set fmt : %08x\n", fmt); | |
203 | ||
204 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
205 | case SND_SOC_DAIFMT_CBS_CFS: | |
206 | reg01_val |= INNO_R01_PINDIR_IN_SLAVE | | |
207 | INNO_R01_I2SMODE_SLAVE; | |
208 | break; | |
209 | case SND_SOC_DAIFMT_CBM_CFM: | |
210 | reg01_val |= INNO_R01_PINDIR_OUT_MASTER | | |
211 | INNO_R01_I2SMODE_MASTER; | |
212 | break; | |
213 | default: | |
214 | dev_err(codec->dev, "invalid fmt\n"); | |
215 | return -EINVAL; | |
216 | } | |
217 | ||
218 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
219 | case SND_SOC_DAIFMT_DSP_A: | |
220 | reg02_val |= INNO_R02_DACM_PCM; | |
221 | break; | |
222 | case SND_SOC_DAIFMT_I2S: | |
223 | reg02_val |= INNO_R02_DACM_I2S; | |
224 | break; | |
225 | case SND_SOC_DAIFMT_RIGHT_J: | |
226 | reg02_val |= INNO_R02_DACM_RJM; | |
227 | break; | |
228 | case SND_SOC_DAIFMT_LEFT_J: | |
229 | reg02_val |= INNO_R02_DACM_LJM; | |
230 | break; | |
231 | default: | |
232 | dev_err(codec->dev, "set dai format failed\n"); | |
233 | return -EINVAL; | |
234 | } | |
235 | ||
236 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
237 | case SND_SOC_DAIFMT_NB_NF: | |
238 | reg02_val |= INNO_R02_LRCP_NORMAL; | |
239 | reg03_val |= INNO_R03_BCP_NORMAL; | |
240 | break; | |
241 | case SND_SOC_DAIFMT_IB_IF: | |
242 | reg02_val |= INNO_R02_LRCP_REVERSAL; | |
243 | reg03_val |= INNO_R03_BCP_REVERSAL; | |
244 | break; | |
245 | case SND_SOC_DAIFMT_IB_NF: | |
246 | reg02_val |= INNO_R02_LRCP_REVERSAL; | |
247 | reg03_val |= INNO_R03_BCP_NORMAL; | |
248 | break; | |
249 | case SND_SOC_DAIFMT_NB_IF: | |
250 | reg02_val |= INNO_R02_LRCP_NORMAL; | |
251 | reg03_val |= INNO_R03_BCP_REVERSAL; | |
252 | break; | |
253 | default: | |
254 | dev_err(codec->dev, "set dai format failed\n"); | |
255 | return -EINVAL; | |
256 | } | |
257 | ||
258 | snd_soc_update_bits(codec, INNO_R01, INNO_R01_I2SMODE_MSK | | |
259 | INNO_R01_PINDIR_MSK, reg01_val); | |
260 | snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK | | |
261 | INNO_R02_DACM_MSK, reg02_val); | |
262 | snd_soc_update_bits(codec, INNO_R03, INNO_R03_BCP_MSK, reg03_val); | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | static int rk3036_codec_dai_hw_params(struct snd_pcm_substream *substream, | |
268 | struct snd_pcm_hw_params *hw_params, | |
269 | struct snd_soc_dai *dai) | |
270 | { | |
271 | struct snd_soc_codec *codec = dai->codec; | |
272 | unsigned int reg02_val = 0, reg03_val = 0; | |
273 | ||
274 | switch (params_format(hw_params)) { | |
275 | case SNDRV_PCM_FORMAT_S16_LE: | |
276 | reg02_val |= INNO_R02_VWL_16BIT; | |
277 | break; | |
278 | case SNDRV_PCM_FORMAT_S20_3LE: | |
279 | reg02_val |= INNO_R02_VWL_20BIT; | |
280 | break; | |
281 | case SNDRV_PCM_FORMAT_S24_LE: | |
282 | reg02_val |= INNO_R02_VWL_24BIT; | |
283 | break; | |
284 | case SNDRV_PCM_FORMAT_S32_LE: | |
285 | reg02_val |= INNO_R02_VWL_32BIT; | |
286 | break; | |
287 | default: | |
288 | return -EINVAL; | |
289 | } | |
290 | ||
291 | reg02_val |= INNO_R02_LRCP_NORMAL; | |
292 | reg03_val |= INNO_R03_FWL_32BIT | INNO_R03_DACR_WORK; | |
293 | ||
294 | snd_soc_update_bits(codec, INNO_R02, INNO_R02_LRCP_MSK | | |
295 | INNO_R02_VWL_MSK, reg02_val); | |
296 | snd_soc_update_bits(codec, INNO_R03, INNO_R03_DACR_MSK | | |
297 | INNO_R03_FWL_MSK, reg03_val); | |
298 | return 0; | |
299 | } | |
300 | ||
301 | #define RK3036_CODEC_RATES (SNDRV_PCM_RATE_8000 | \ | |
302 | SNDRV_PCM_RATE_16000 | \ | |
303 | SNDRV_PCM_RATE_32000 | \ | |
304 | SNDRV_PCM_RATE_44100 | \ | |
305 | SNDRV_PCM_RATE_48000 | \ | |
306 | SNDRV_PCM_RATE_96000) | |
307 | ||
308 | #define RK3036_CODEC_FMTS (SNDRV_PCM_FMTBIT_S16_LE | \ | |
309 | SNDRV_PCM_FMTBIT_S20_3LE | \ | |
310 | SNDRV_PCM_FMTBIT_S24_LE | \ | |
311 | SNDRV_PCM_FMTBIT_S32_LE) | |
312 | ||
313 | static struct snd_soc_dai_ops rk3036_codec_dai_ops = { | |
314 | .set_fmt = rk3036_codec_dai_set_fmt, | |
315 | .hw_params = rk3036_codec_dai_hw_params, | |
316 | }; | |
317 | ||
318 | static struct snd_soc_dai_driver rk3036_codec_dai_driver[] = { | |
319 | { | |
320 | .name = "rk3036-codec-dai", | |
321 | .playback = { | |
322 | .stream_name = "Playback", | |
323 | .channels_min = 1, | |
324 | .channels_max = 2, | |
325 | .rates = RK3036_CODEC_RATES, | |
326 | .formats = RK3036_CODEC_FMTS, | |
327 | }, | |
328 | .ops = &rk3036_codec_dai_ops, | |
329 | .symmetric_rates = 1, | |
330 | }, | |
331 | }; | |
332 | ||
333 | static void rk3036_codec_reset(struct snd_soc_codec *codec) | |
334 | { | |
335 | snd_soc_write(codec, INNO_R00, | |
336 | INNO_R00_CSR_RESET | INNO_R00_CDCR_RESET); | |
337 | snd_soc_write(codec, INNO_R00, | |
338 | INNO_R00_CSR_WORK | INNO_R00_CDCR_WORK); | |
339 | } | |
340 | ||
341 | static int rk3036_codec_probe(struct snd_soc_codec *codec) | |
342 | { | |
343 | rk3036_codec_reset(codec); | |
344 | return 0; | |
345 | } | |
346 | ||
347 | static int rk3036_codec_remove(struct snd_soc_codec *codec) | |
348 | { | |
349 | rk3036_codec_reset(codec); | |
350 | return 0; | |
351 | } | |
352 | ||
353 | static int rk3036_codec_set_bias_level(struct snd_soc_codec *codec, | |
354 | enum snd_soc_bias_level level) | |
355 | { | |
356 | switch (level) { | |
357 | case SND_SOC_BIAS_STANDBY: | |
358 | /* set a big current for capacitor charging. */ | |
359 | snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR); | |
360 | /* start precharge */ | |
361 | snd_soc_write(codec, INNO_R06, INNO_R06_DAC_PRECHARGE); | |
362 | ||
363 | break; | |
364 | ||
365 | case SND_SOC_BIAS_OFF: | |
366 | /* set a big current for capacitor discharging. */ | |
367 | snd_soc_write(codec, INNO_R10, INNO_R10_MAX_CUR); | |
368 | /* start discharge. */ | |
369 | snd_soc_write(codec, INNO_R06, INNO_R06_DAC_DISCHARGE); | |
370 | ||
371 | break; | |
372 | default: | |
373 | break; | |
374 | } | |
375 | ||
376 | return 0; | |
377 | } | |
378 | ||
379 | static struct snd_soc_codec_driver rk3036_codec_driver = { | |
380 | .probe = rk3036_codec_probe, | |
381 | .remove = rk3036_codec_remove, | |
382 | .set_bias_level = rk3036_codec_set_bias_level, | |
383 | .controls = rk3036_codec_dapm_controls, | |
384 | .num_controls = ARRAY_SIZE(rk3036_codec_dapm_controls), | |
385 | .dapm_routes = rk3036_codec_dapm_routes, | |
386 | .num_dapm_routes = ARRAY_SIZE(rk3036_codec_dapm_routes), | |
387 | .dapm_widgets = rk3036_codec_dapm_widgets, | |
388 | .num_dapm_widgets = ARRAY_SIZE(rk3036_codec_dapm_widgets), | |
389 | }; | |
390 | ||
391 | static const struct regmap_config rk3036_codec_regmap_config = { | |
392 | .reg_bits = 32, | |
393 | .reg_stride = 4, | |
394 | .val_bits = 32, | |
395 | }; | |
396 | ||
397 | #define GRF_SOC_CON0 0x00140 | |
398 | #define GRF_ACODEC_SEL (BIT(10) | BIT(16 + 10)) | |
399 | ||
400 | static int rk3036_codec_platform_probe(struct platform_device *pdev) | |
401 | { | |
402 | struct rk3036_codec_priv *priv; | |
403 | struct device_node *of_node = pdev->dev.of_node; | |
404 | struct resource *res; | |
405 | void __iomem *base; | |
406 | struct regmap *grf; | |
407 | int ret; | |
408 | ||
409 | priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); | |
410 | if (!priv) | |
411 | return -ENOMEM; | |
412 | ||
413 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
414 | base = devm_ioremap_resource(&pdev->dev, res); | |
415 | if (IS_ERR(base)) | |
416 | return PTR_ERR(base); | |
417 | ||
418 | priv->base = base; | |
419 | priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base, | |
420 | &rk3036_codec_regmap_config); | |
421 | if (IS_ERR(priv->regmap)) { | |
422 | dev_err(&pdev->dev, "init regmap failed\n"); | |
423 | return PTR_ERR(priv->regmap); | |
424 | } | |
425 | ||
426 | grf = syscon_regmap_lookup_by_phandle(of_node, "rockchip,grf"); | |
427 | if (IS_ERR(grf)) { | |
428 | dev_err(&pdev->dev, "needs 'rockchip,grf' property\n"); | |
429 | return PTR_ERR(grf); | |
430 | } | |
431 | ret = regmap_write(grf, GRF_SOC_CON0, GRF_ACODEC_SEL); | |
432 | if (ret) { | |
433 | dev_err(&pdev->dev, "Could not write to GRF: %d\n", ret); | |
434 | return ret; | |
435 | } | |
436 | ||
437 | priv->pclk = devm_clk_get(&pdev->dev, "acodec_pclk"); | |
438 | if (IS_ERR(priv->pclk)) | |
439 | return PTR_ERR(priv->pclk); | |
440 | ||
441 | ret = clk_prepare_enable(priv->pclk); | |
442 | if (ret < 0) { | |
443 | dev_err(&pdev->dev, "failed to enable clk\n"); | |
444 | return ret; | |
445 | } | |
446 | ||
447 | priv->dev = &pdev->dev; | |
448 | dev_set_drvdata(&pdev->dev, priv); | |
449 | ||
450 | ret = snd_soc_register_codec(&pdev->dev, &rk3036_codec_driver, | |
451 | rk3036_codec_dai_driver, | |
452 | ARRAY_SIZE(rk3036_codec_dai_driver)); | |
453 | if (ret) { | |
454 | clk_disable_unprepare(priv->pclk); | |
455 | dev_set_drvdata(&pdev->dev, NULL); | |
456 | } | |
457 | ||
458 | return ret; | |
459 | } | |
460 | ||
461 | static int rk3036_codec_platform_remove(struct platform_device *pdev) | |
462 | { | |
463 | struct rk3036_codec_priv *priv = dev_get_drvdata(&pdev->dev); | |
464 | ||
465 | snd_soc_unregister_codec(&pdev->dev); | |
466 | clk_disable_unprepare(priv->pclk); | |
467 | ||
468 | return 0; | |
469 | } | |
470 | ||
471 | static const struct of_device_id rk3036_codec_of_match[] = { | |
472 | { .compatible = "rockchip,rk3036-codec", }, | |
473 | {} | |
474 | }; | |
475 | MODULE_DEVICE_TABLE(of, rk3036_codec_of_match); | |
476 | ||
477 | static struct platform_driver rk3036_codec_platform_driver = { | |
478 | .driver = { | |
479 | .name = "rk3036-codec-platform", | |
decbc00e Z |
480 | .of_match_table = of_match_ptr(rk3036_codec_of_match), |
481 | }, | |
482 | .probe = rk3036_codec_platform_probe, | |
483 | .remove = rk3036_codec_platform_remove, | |
484 | }; | |
485 | ||
486 | module_platform_driver(rk3036_codec_platform_driver); | |
487 | ||
488 | MODULE_AUTHOR("Rockchip Inc."); | |
489 | MODULE_DESCRIPTION("Rockchip rk3036 codec driver"); | |
490 | MODULE_LICENSE("GPL"); |