xref: /openbmc/linux/sound/soc/codecs/rt5514.c (revision 9fdc4fea)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * rt5514.c  --  RT5514 ALSA SoC audio codec driver
4  *
5  * Copyright 2015 Realtek Semiconductor Corp.
6  * Author: Oder Chiou <oder_chiou@realtek.com>
7  */
8 
9 #include <linux/acpi.h>
10 #include <linux/fs.h>
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
15 #include <linux/pm.h>
16 #include <linux/regmap.h>
17 #include <linux/i2c.h>
18 #include <linux/platform_device.h>
19 #include <linux/firmware.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/soc-dapm.h>
25 #include <sound/initval.h>
26 #include <sound/tlv.h>
27 
28 #include "rl6231.h"
29 #include "rt5514.h"
30 #if IS_ENABLED(CONFIG_SND_SOC_RT5514_SPI)
31 #include "rt5514-spi.h"
32 #endif
33 
34 static const struct reg_sequence rt5514_i2c_patch[] = {
35 	{0x1800101c, 0x00000000},
36 	{0x18001100, 0x0000031f},
37 	{0x18001104, 0x00000007},
38 	{0x18001108, 0x00000000},
39 	{0x1800110c, 0x00000000},
40 	{0x18001110, 0x00000000},
41 	{0x18001114, 0x00000001},
42 	{0x18001118, 0x00000000},
43 	{0x18002f08, 0x00000006},
44 	{0x18002f00, 0x00055149},
45 	{0x18002f00, 0x0005514b},
46 	{0x18002f00, 0x00055149},
47 	{0xfafafafa, 0x00000001},
48 	{0x18002f10, 0x00000001},
49 	{0x18002f10, 0x00000000},
50 	{0x18002f10, 0x00000001},
51 	{0xfafafafa, 0x00000001},
52 	{0x18002000, 0x000010ec},
53 	{0xfafafafa, 0x00000000},
54 };
55 
56 static const struct reg_sequence rt5514_patch[] = {
57 	{RT5514_DIG_IO_CTRL,		0x00000040},
58 	{RT5514_CLK_CTRL1,		0x38020041},
59 	{RT5514_SRC_CTRL,		0x44000eee},
60 	{RT5514_ANA_CTRL_LDO10,		0x00028604},
61 	{RT5514_ANA_CTRL_ADCFED,	0x00000800},
62 	{RT5514_ASRC_IN_CTRL1,		0x00000003},
63 	{RT5514_DOWNFILTER0_CTRL3,	0x10000342},
64 	{RT5514_DOWNFILTER1_CTRL3,	0x10000342},
65 };
66 
67 static const struct reg_default rt5514_reg[] = {
68 	{RT5514_RESET,			0x00000000},
69 	{RT5514_PWR_ANA1,		0x00808880},
70 	{RT5514_PWR_ANA2,		0x00220000},
71 	{RT5514_I2S_CTRL1,		0x00000330},
72 	{RT5514_I2S_CTRL2,		0x20000000},
73 	{RT5514_VAD_CTRL6,		0xc00007d2},
74 	{RT5514_EXT_VAD_CTRL,		0x80000080},
75 	{RT5514_DIG_IO_CTRL,		0x00000040},
76 	{RT5514_PAD_CTRL1,		0x00804000},
77 	{RT5514_DMIC_DATA_CTRL,		0x00000005},
78 	{RT5514_DIG_SOURCE_CTRL,	0x00000002},
79 	{RT5514_SRC_CTRL,		0x44000eee},
80 	{RT5514_DOWNFILTER2_CTRL1,	0x0000882f},
81 	{RT5514_PLL_SOURCE_CTRL,	0x00000004},
82 	{RT5514_CLK_CTRL1,		0x38020041},
83 	{RT5514_CLK_CTRL2,		0x00000000},
84 	{RT5514_PLL3_CALIB_CTRL1,	0x00400200},
85 	{RT5514_PLL3_CALIB_CTRL5,	0x40220012},
86 	{RT5514_DELAY_BUF_CTRL1,	0x7fff006a},
87 	{RT5514_DELAY_BUF_CTRL3,	0x00000000},
88 	{RT5514_ASRC_IN_CTRL1,		0x00000003},
89 	{RT5514_DOWNFILTER0_CTRL1,	0x00020c2f},
90 	{RT5514_DOWNFILTER0_CTRL2,	0x00020c2f},
91 	{RT5514_DOWNFILTER0_CTRL3,	0x10000342},
92 	{RT5514_DOWNFILTER1_CTRL1,	0x00020c2f},
93 	{RT5514_DOWNFILTER1_CTRL2,	0x00020c2f},
94 	{RT5514_DOWNFILTER1_CTRL3,	0x10000342},
95 	{RT5514_ANA_CTRL_LDO10,		0x00028604},
96 	{RT5514_ANA_CTRL_LDO18_16,	0x02000345},
97 	{RT5514_ANA_CTRL_ADC12,		0x0000a2a8},
98 	{RT5514_ANA_CTRL_ADC21,		0x00001180},
99 	{RT5514_ANA_CTRL_ADC22,		0x0000aaa8},
100 	{RT5514_ANA_CTRL_ADC23,		0x00151427},
101 	{RT5514_ANA_CTRL_MICBST,	0x00002000},
102 	{RT5514_ANA_CTRL_ADCFED,	0x00000800},
103 	{RT5514_ANA_CTRL_INBUF,		0x00000143},
104 	{RT5514_ANA_CTRL_VREF,		0x00008d50},
105 	{RT5514_ANA_CTRL_PLL3,		0x0000000e},
106 	{RT5514_ANA_CTRL_PLL1_1,	0x00000000},
107 	{RT5514_ANA_CTRL_PLL1_2,	0x00030220},
108 	{RT5514_DMIC_LP_CTRL,		0x00000000},
109 	{RT5514_MISC_CTRL_DSP,		0x00000000},
110 	{RT5514_DSP_CTRL1,		0x00055149},
111 	{RT5514_DSP_CTRL3,		0x00000006},
112 	{RT5514_DSP_CTRL4,		0x00000001},
113 	{RT5514_VENDOR_ID1,		0x00000001},
114 	{RT5514_VENDOR_ID2,		0x10ec5514},
115 };
116 
rt5514_enable_dsp_prepare(struct rt5514_priv * rt5514)117 static void rt5514_enable_dsp_prepare(struct rt5514_priv *rt5514)
118 {
119 	/* Reset */
120 	regmap_write(rt5514->i2c_regmap, 0x18002000, 0x000010ec);
121 	/* LDO_I_limit */
122 	regmap_write(rt5514->i2c_regmap, 0x18002200, 0x00028604);
123 	/* I2C bypass enable */
124 	regmap_write(rt5514->i2c_regmap, 0xfafafafa, 0x00000001);
125 	/* mini-core reset */
126 	regmap_write(rt5514->i2c_regmap, 0x18002f00, 0x0005514b);
127 	regmap_write(rt5514->i2c_regmap, 0x18002f00, 0x00055149);
128 	/* I2C bypass disable */
129 	regmap_write(rt5514->i2c_regmap, 0xfafafafa, 0x00000000);
130 	/* PIN config */
131 	regmap_write(rt5514->i2c_regmap, 0x18002070, 0x00000040);
132 	/* PLL3(QN)=RCOSC*(10+2) */
133 	regmap_write(rt5514->i2c_regmap, 0x18002240, 0x0000000a);
134 	/* PLL3 source=RCOSC, fsi=rt_clk */
135 	regmap_write(rt5514->i2c_regmap, 0x18002100, 0x0000000b);
136 	/* Power on RCOSC, pll3 */
137 	regmap_write(rt5514->i2c_regmap, 0x18002004, 0x00808b81);
138 	/* DSP clk source = pll3, ENABLE DSP clk */
139 	regmap_write(rt5514->i2c_regmap, 0x18002f08, 0x00000005);
140 	/* Enable DSP clk auto switch */
141 	regmap_write(rt5514->i2c_regmap, 0x18001114, 0x00000001);
142 	/* Reduce DSP power */
143 	regmap_write(rt5514->i2c_regmap, 0x18001118, 0x00000001);
144 }
145 
rt5514_volatile_register(struct device * dev,unsigned int reg)146 static bool rt5514_volatile_register(struct device *dev, unsigned int reg)
147 {
148 	switch (reg) {
149 	case RT5514_VENDOR_ID1:
150 	case RT5514_VENDOR_ID2:
151 		return true;
152 
153 	default:
154 		return false;
155 	}
156 }
157 
rt5514_readable_register(struct device * dev,unsigned int reg)158 static bool rt5514_readable_register(struct device *dev, unsigned int reg)
159 {
160 	switch (reg) {
161 	case RT5514_RESET:
162 	case RT5514_PWR_ANA1:
163 	case RT5514_PWR_ANA2:
164 	case RT5514_I2S_CTRL1:
165 	case RT5514_I2S_CTRL2:
166 	case RT5514_VAD_CTRL6:
167 	case RT5514_EXT_VAD_CTRL:
168 	case RT5514_DIG_IO_CTRL:
169 	case RT5514_PAD_CTRL1:
170 	case RT5514_DMIC_DATA_CTRL:
171 	case RT5514_DIG_SOURCE_CTRL:
172 	case RT5514_SRC_CTRL:
173 	case RT5514_DOWNFILTER2_CTRL1:
174 	case RT5514_PLL_SOURCE_CTRL:
175 	case RT5514_CLK_CTRL1:
176 	case RT5514_CLK_CTRL2:
177 	case RT5514_PLL3_CALIB_CTRL1:
178 	case RT5514_PLL3_CALIB_CTRL5:
179 	case RT5514_DELAY_BUF_CTRL1:
180 	case RT5514_DELAY_BUF_CTRL3:
181 	case RT5514_ASRC_IN_CTRL1:
182 	case RT5514_DOWNFILTER0_CTRL1:
183 	case RT5514_DOWNFILTER0_CTRL2:
184 	case RT5514_DOWNFILTER0_CTRL3:
185 	case RT5514_DOWNFILTER1_CTRL1:
186 	case RT5514_DOWNFILTER1_CTRL2:
187 	case RT5514_DOWNFILTER1_CTRL3:
188 	case RT5514_ANA_CTRL_LDO10:
189 	case RT5514_ANA_CTRL_LDO18_16:
190 	case RT5514_ANA_CTRL_ADC12:
191 	case RT5514_ANA_CTRL_ADC21:
192 	case RT5514_ANA_CTRL_ADC22:
193 	case RT5514_ANA_CTRL_ADC23:
194 	case RT5514_ANA_CTRL_MICBST:
195 	case RT5514_ANA_CTRL_ADCFED:
196 	case RT5514_ANA_CTRL_INBUF:
197 	case RT5514_ANA_CTRL_VREF:
198 	case RT5514_ANA_CTRL_PLL3:
199 	case RT5514_ANA_CTRL_PLL1_1:
200 	case RT5514_ANA_CTRL_PLL1_2:
201 	case RT5514_DMIC_LP_CTRL:
202 	case RT5514_MISC_CTRL_DSP:
203 	case RT5514_DSP_CTRL1:
204 	case RT5514_DSP_CTRL3:
205 	case RT5514_DSP_CTRL4:
206 	case RT5514_VENDOR_ID1:
207 	case RT5514_VENDOR_ID2:
208 		return true;
209 
210 	default:
211 		return false;
212 	}
213 }
214 
rt5514_i2c_readable_register(struct device * dev,unsigned int reg)215 static bool rt5514_i2c_readable_register(struct device *dev,
216 	unsigned int reg)
217 {
218 	switch (reg) {
219 	case RT5514_DSP_MAPPING | RT5514_RESET:
220 	case RT5514_DSP_MAPPING | RT5514_PWR_ANA1:
221 	case RT5514_DSP_MAPPING | RT5514_PWR_ANA2:
222 	case RT5514_DSP_MAPPING | RT5514_I2S_CTRL1:
223 	case RT5514_DSP_MAPPING | RT5514_I2S_CTRL2:
224 	case RT5514_DSP_MAPPING | RT5514_VAD_CTRL6:
225 	case RT5514_DSP_MAPPING | RT5514_EXT_VAD_CTRL:
226 	case RT5514_DSP_MAPPING | RT5514_DIG_IO_CTRL:
227 	case RT5514_DSP_MAPPING | RT5514_PAD_CTRL1:
228 	case RT5514_DSP_MAPPING | RT5514_DMIC_DATA_CTRL:
229 	case RT5514_DSP_MAPPING | RT5514_DIG_SOURCE_CTRL:
230 	case RT5514_DSP_MAPPING | RT5514_SRC_CTRL:
231 	case RT5514_DSP_MAPPING | RT5514_DOWNFILTER2_CTRL1:
232 	case RT5514_DSP_MAPPING | RT5514_PLL_SOURCE_CTRL:
233 	case RT5514_DSP_MAPPING | RT5514_CLK_CTRL1:
234 	case RT5514_DSP_MAPPING | RT5514_CLK_CTRL2:
235 	case RT5514_DSP_MAPPING | RT5514_PLL3_CALIB_CTRL1:
236 	case RT5514_DSP_MAPPING | RT5514_PLL3_CALIB_CTRL5:
237 	case RT5514_DSP_MAPPING | RT5514_DELAY_BUF_CTRL1:
238 	case RT5514_DSP_MAPPING | RT5514_DELAY_BUF_CTRL3:
239 	case RT5514_DSP_MAPPING | RT5514_ASRC_IN_CTRL1:
240 	case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL1:
241 	case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL2:
242 	case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL3:
243 	case RT5514_DSP_MAPPING | RT5514_DOWNFILTER1_CTRL1:
244 	case RT5514_DSP_MAPPING | RT5514_DOWNFILTER1_CTRL2:
245 	case RT5514_DSP_MAPPING | RT5514_DOWNFILTER1_CTRL3:
246 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_LDO10:
247 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_LDO18_16:
248 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADC12:
249 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADC21:
250 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADC22:
251 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADC23:
252 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_MICBST:
253 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADCFED:
254 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_INBUF:
255 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_VREF:
256 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_PLL3:
257 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_PLL1_1:
258 	case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_PLL1_2:
259 	case RT5514_DSP_MAPPING | RT5514_DMIC_LP_CTRL:
260 	case RT5514_DSP_MAPPING | RT5514_MISC_CTRL_DSP:
261 	case RT5514_DSP_MAPPING | RT5514_DSP_CTRL1:
262 	case RT5514_DSP_MAPPING | RT5514_DSP_CTRL3:
263 	case RT5514_DSP_MAPPING | RT5514_DSP_CTRL4:
264 	case RT5514_DSP_MAPPING | RT5514_VENDOR_ID1:
265 	case RT5514_DSP_MAPPING | RT5514_VENDOR_ID2:
266 		return true;
267 
268 	default:
269 		return false;
270 	}
271 }
272 
273 /* {-3, 0, +3, +4.5, +7.5, +9.5, +12, +14, +17} dB */
274 static const DECLARE_TLV_DB_RANGE(bst_tlv,
275 	0, 2, TLV_DB_SCALE_ITEM(-300, 300, 0),
276 	3, 3, TLV_DB_SCALE_ITEM(450, 0, 0),
277 	4, 4, TLV_DB_SCALE_ITEM(750, 0, 0),
278 	5, 5, TLV_DB_SCALE_ITEM(950, 0, 0),
279 	6, 6, TLV_DB_SCALE_ITEM(1200, 0, 0),
280 	7, 7, TLV_DB_SCALE_ITEM(1400, 0, 0),
281 	8, 8, TLV_DB_SCALE_ITEM(1700, 0, 0)
282 );
283 
284 static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -1725, 75, 0);
285 
rt5514_dsp_voice_wake_up_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)286 static int rt5514_dsp_voice_wake_up_get(struct snd_kcontrol *kcontrol,
287 		struct snd_ctl_elem_value *ucontrol)
288 {
289 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
290 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
291 
292 	ucontrol->value.integer.value[0] = rt5514->dsp_enabled;
293 
294 	return 0;
295 }
296 
rt5514_calibration(struct rt5514_priv * rt5514,bool on)297 static int rt5514_calibration(struct rt5514_priv *rt5514, bool on)
298 {
299 	if (on) {
300 		regmap_write(rt5514->regmap, RT5514_ANA_CTRL_PLL3, 0x0000000a);
301 		regmap_update_bits(rt5514->regmap, RT5514_PLL_SOURCE_CTRL, 0xf,
302 			0xa);
303 		regmap_update_bits(rt5514->regmap, RT5514_PWR_ANA1, 0x301,
304 			0x301);
305 		regmap_write(rt5514->regmap, RT5514_PLL3_CALIB_CTRL4,
306 			0x80000000 | rt5514->pll3_cal_value);
307 		regmap_write(rt5514->regmap, RT5514_PLL3_CALIB_CTRL1,
308 			0x8bb80800);
309 		regmap_update_bits(rt5514->regmap, RT5514_PLL3_CALIB_CTRL5,
310 			0xc0000000, 0x80000000);
311 		regmap_update_bits(rt5514->regmap, RT5514_PLL3_CALIB_CTRL5,
312 			0xc0000000, 0xc0000000);
313 	} else {
314 		regmap_update_bits(rt5514->regmap, RT5514_PLL3_CALIB_CTRL5,
315 			0xc0000000, 0x40000000);
316 		regmap_update_bits(rt5514->regmap, RT5514_PWR_ANA1, 0x301, 0);
317 		regmap_update_bits(rt5514->regmap, RT5514_PLL_SOURCE_CTRL, 0xf,
318 			0x4);
319 	}
320 
321 	return 0;
322 }
323 
rt5514_dsp_voice_wake_up_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)324 static int rt5514_dsp_voice_wake_up_put(struct snd_kcontrol *kcontrol,
325 		struct snd_ctl_elem_value *ucontrol)
326 {
327 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
328 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
329 	const struct firmware *fw = NULL;
330 	u8 buf[8];
331 
332 	if (ucontrol->value.integer.value[0] == rt5514->dsp_enabled)
333 		return 0;
334 
335 	if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
336 		rt5514->dsp_enabled = ucontrol->value.integer.value[0];
337 
338 		if (rt5514->dsp_enabled) {
339 			if (rt5514->pdata.dsp_calib_clk_name &&
340 				!IS_ERR(rt5514->dsp_calib_clk)) {
341 				if (clk_set_rate(rt5514->dsp_calib_clk,
342 					rt5514->pdata.dsp_calib_clk_rate))
343 					dev_err(component->dev,
344 						"Can't set rate for mclk");
345 
346 				if (clk_prepare_enable(rt5514->dsp_calib_clk))
347 					dev_err(component->dev,
348 						"Can't enable dsp_calib_clk");
349 
350 				rt5514_calibration(rt5514, true);
351 
352 				msleep(20);
353 #if IS_ENABLED(CONFIG_SND_SOC_RT5514_SPI)
354 				rt5514_spi_burst_read(RT5514_PLL3_CALIB_CTRL6 |
355 					RT5514_DSP_MAPPING, buf, sizeof(buf));
356 #else
357 				dev_err(component->dev, "There is no SPI driver for"
358 					" loading the firmware\n");
359 				memset(buf, 0, sizeof(buf));
360 #endif
361 				rt5514->pll3_cal_value = buf[0] | buf[1] << 8 |
362 					buf[2] << 16 | buf[3] << 24;
363 
364 				rt5514_calibration(rt5514, false);
365 				clk_disable_unprepare(rt5514->dsp_calib_clk);
366 			}
367 
368 			rt5514_enable_dsp_prepare(rt5514);
369 
370 			request_firmware(&fw, RT5514_FIRMWARE1, component->dev);
371 			if (fw) {
372 #if IS_ENABLED(CONFIG_SND_SOC_RT5514_SPI)
373 				rt5514_spi_burst_write(0x4ff60000, fw->data,
374 					((fw->size/8)+1)*8);
375 #else
376 				dev_err(component->dev, "There is no SPI driver for"
377 					" loading the firmware\n");
378 #endif
379 				release_firmware(fw);
380 				fw = NULL;
381 			}
382 
383 			request_firmware(&fw, RT5514_FIRMWARE2, component->dev);
384 			if (fw) {
385 #if IS_ENABLED(CONFIG_SND_SOC_RT5514_SPI)
386 				rt5514_spi_burst_write(0x4ffc0000, fw->data,
387 					((fw->size/8)+1)*8);
388 #else
389 				dev_err(component->dev, "There is no SPI driver for"
390 					" loading the firmware\n");
391 #endif
392 				release_firmware(fw);
393 				fw = NULL;
394 			}
395 
396 			/* DSP run */
397 			regmap_write(rt5514->i2c_regmap, 0x18002f00,
398 				0x00055148);
399 
400 			if (rt5514->pdata.dsp_calib_clk_name &&
401 				!IS_ERR(rt5514->dsp_calib_clk)) {
402 				msleep(20);
403 
404 				regmap_write(rt5514->i2c_regmap, 0x1800211c,
405 					rt5514->pll3_cal_value);
406 				regmap_write(rt5514->i2c_regmap, 0x18002124,
407 					0x00220012);
408 				regmap_write(rt5514->i2c_regmap, 0x18002124,
409 					0x80220042);
410 				regmap_write(rt5514->i2c_regmap, 0x18002124,
411 					0xe0220042);
412 			}
413 		} else {
414 			regmap_multi_reg_write(rt5514->i2c_regmap,
415 				rt5514_i2c_patch, ARRAY_SIZE(rt5514_i2c_patch));
416 			regcache_mark_dirty(rt5514->regmap);
417 			regcache_sync(rt5514->regmap);
418 		}
419 	}
420 
421 	return 1;
422 }
423 
424 static const struct snd_kcontrol_new rt5514_snd_controls[] = {
425 	SOC_DOUBLE_TLV("MIC Boost Volume", RT5514_ANA_CTRL_MICBST,
426 		RT5514_SEL_BSTL_SFT, RT5514_SEL_BSTR_SFT, 8, 0, bst_tlv),
427 	SOC_DOUBLE_R_TLV("ADC1 Capture Volume", RT5514_DOWNFILTER0_CTRL1,
428 		RT5514_DOWNFILTER0_CTRL2, RT5514_AD_GAIN_SFT, 63, 0,
429 		adc_vol_tlv),
430 	SOC_DOUBLE_R_TLV("ADC2 Capture Volume", RT5514_DOWNFILTER1_CTRL1,
431 		RT5514_DOWNFILTER1_CTRL2, RT5514_AD_GAIN_SFT, 63, 0,
432 		adc_vol_tlv),
433 	SOC_SINGLE_EXT("DSP Voice Wake Up", SND_SOC_NOPM, 0, 1, 0,
434 		rt5514_dsp_voice_wake_up_get, rt5514_dsp_voice_wake_up_put),
435 };
436 
437 /* ADC Mixer*/
438 static const struct snd_kcontrol_new rt5514_sto1_adc_l_mix[] = {
439 	SOC_DAPM_SINGLE("DMIC Switch", RT5514_DOWNFILTER0_CTRL1,
440 		RT5514_AD_DMIC_MIX_BIT, 1, 1),
441 	SOC_DAPM_SINGLE("ADC Switch", RT5514_DOWNFILTER0_CTRL1,
442 		RT5514_AD_AD_MIX_BIT, 1, 1),
443 };
444 
445 static const struct snd_kcontrol_new rt5514_sto1_adc_r_mix[] = {
446 	SOC_DAPM_SINGLE("DMIC Switch", RT5514_DOWNFILTER0_CTRL2,
447 		RT5514_AD_DMIC_MIX_BIT, 1, 1),
448 	SOC_DAPM_SINGLE("ADC Switch", RT5514_DOWNFILTER0_CTRL2,
449 		RT5514_AD_AD_MIX_BIT, 1, 1),
450 };
451 
452 static const struct snd_kcontrol_new rt5514_sto2_adc_l_mix[] = {
453 	SOC_DAPM_SINGLE("DMIC Switch", RT5514_DOWNFILTER1_CTRL1,
454 		RT5514_AD_DMIC_MIX_BIT, 1, 1),
455 	SOC_DAPM_SINGLE("ADC Switch", RT5514_DOWNFILTER1_CTRL1,
456 		RT5514_AD_AD_MIX_BIT, 1, 1),
457 };
458 
459 static const struct snd_kcontrol_new rt5514_sto2_adc_r_mix[] = {
460 	SOC_DAPM_SINGLE("DMIC Switch", RT5514_DOWNFILTER1_CTRL2,
461 		RT5514_AD_DMIC_MIX_BIT, 1, 1),
462 	SOC_DAPM_SINGLE("ADC Switch", RT5514_DOWNFILTER1_CTRL2,
463 		RT5514_AD_AD_MIX_BIT, 1, 1),
464 };
465 
466 /* DMIC Source */
467 static const char * const rt5514_dmic_src[] = {
468 	"DMIC1", "DMIC2"
469 };
470 
471 static SOC_ENUM_SINGLE_DECL(
472 	rt5514_stereo1_dmic_enum, RT5514_DIG_SOURCE_CTRL,
473 	RT5514_AD0_DMIC_INPUT_SEL_SFT, rt5514_dmic_src);
474 
475 static const struct snd_kcontrol_new rt5514_sto1_dmic_mux =
476 	SOC_DAPM_ENUM("Stereo1 DMIC Source", rt5514_stereo1_dmic_enum);
477 
478 static SOC_ENUM_SINGLE_DECL(
479 	rt5514_stereo2_dmic_enum, RT5514_DIG_SOURCE_CTRL,
480 	RT5514_AD1_DMIC_INPUT_SEL_SFT, rt5514_dmic_src);
481 
482 static const struct snd_kcontrol_new rt5514_sto2_dmic_mux =
483 	SOC_DAPM_ENUM("Stereo2 DMIC Source", rt5514_stereo2_dmic_enum);
484 
485 /**
486  * rt5514_calc_dmic_clk - Calculate the frequency divider parameter of dmic.
487  *
488  * @component: only used for dev_warn
489  * @rate: base clock rate.
490  *
491  * Choose divider parameter that gives the highest possible DMIC frequency in
492  * 1MHz - 3MHz range.
493  */
rt5514_calc_dmic_clk(struct snd_soc_component * component,int rate)494 static int rt5514_calc_dmic_clk(struct snd_soc_component *component, int rate)
495 {
496 	static const int div[] = {2, 3, 4, 8, 12, 16, 24, 32};
497 	int i;
498 
499 	if (rate < 1000000 * div[0]) {
500 		pr_warn("Base clock rate %d is too low\n", rate);
501 		return -EINVAL;
502 	}
503 
504 	for (i = 0; i < ARRAY_SIZE(div); i++) {
505 		/* find divider that gives DMIC frequency below 3.072MHz */
506 		if (3072000 * div[i] >= rate)
507 			return i;
508 	}
509 
510 	dev_warn(component->dev, "Base clock rate %d is too high\n", rate);
511 	return -EINVAL;
512 }
513 
rt5514_set_dmic_clk(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)514 static int rt5514_set_dmic_clk(struct snd_soc_dapm_widget *w,
515 	struct snd_kcontrol *kcontrol, int event)
516 {
517 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
518 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
519 	int idx;
520 
521 	idx = rt5514_calc_dmic_clk(component, rt5514->sysclk);
522 	if (idx < 0)
523 		dev_err(component->dev, "Failed to set DMIC clock\n");
524 	else
525 		regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL1,
526 			RT5514_CLK_DMIC_OUT_SEL_MASK,
527 			idx << RT5514_CLK_DMIC_OUT_SEL_SFT);
528 
529 	if (rt5514->pdata.dmic_init_delay)
530 		msleep(rt5514->pdata.dmic_init_delay);
531 
532 	return idx;
533 }
534 
rt5514_is_sys_clk_from_pll(struct snd_soc_dapm_widget * source,struct snd_soc_dapm_widget * sink)535 static int rt5514_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source,
536 			 struct snd_soc_dapm_widget *sink)
537 {
538 	struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
539 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
540 
541 	if (rt5514->sysclk_src == RT5514_SCLK_S_PLL1)
542 		return 1;
543 	else
544 		return 0;
545 }
546 
rt5514_i2s_use_asrc(struct snd_soc_dapm_widget * source,struct snd_soc_dapm_widget * sink)547 static int rt5514_i2s_use_asrc(struct snd_soc_dapm_widget *source,
548 	struct snd_soc_dapm_widget *sink)
549 {
550 	struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
551 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
552 
553 	return (rt5514->sysclk > rt5514->lrck * 384);
554 }
555 
556 static const struct snd_soc_dapm_widget rt5514_dapm_widgets[] = {
557 	/* Input Lines */
558 	SND_SOC_DAPM_INPUT("DMIC1L"),
559 	SND_SOC_DAPM_INPUT("DMIC1R"),
560 	SND_SOC_DAPM_INPUT("DMIC2L"),
561 	SND_SOC_DAPM_INPUT("DMIC2R"),
562 
563 	SND_SOC_DAPM_INPUT("AMICL"),
564 	SND_SOC_DAPM_INPUT("AMICR"),
565 
566 	SND_SOC_DAPM_PGA("DMIC1", SND_SOC_NOPM, 0, 0, NULL, 0),
567 	SND_SOC_DAPM_PGA("DMIC2", SND_SOC_NOPM, 0, 0, NULL, 0),
568 
569 	SND_SOC_DAPM_SUPPLY_S("DMIC CLK", 1, SND_SOC_NOPM, 0, 0,
570 		rt5514_set_dmic_clk, SND_SOC_DAPM_PRE_PMU),
571 
572 	SND_SOC_DAPM_SUPPLY("ADC CLK", RT5514_CLK_CTRL1,
573 		RT5514_CLK_AD_ANA1_EN_BIT, 0, NULL, 0),
574 
575 	SND_SOC_DAPM_SUPPLY("LDO18 IN", RT5514_PWR_ANA1,
576 		RT5514_POW_LDO18_IN_BIT, 0, NULL, 0),
577 	SND_SOC_DAPM_SUPPLY("LDO18 ADC", RT5514_PWR_ANA1,
578 		RT5514_POW_LDO18_ADC_BIT, 0, NULL, 0),
579 	SND_SOC_DAPM_SUPPLY("LDO21", RT5514_PWR_ANA1, RT5514_POW_LDO21_BIT, 0,
580 		NULL, 0),
581 	SND_SOC_DAPM_SUPPLY("BG LDO18 IN", RT5514_PWR_ANA1,
582 		RT5514_POW_BG_LDO18_IN_BIT, 0, NULL, 0),
583 	SND_SOC_DAPM_SUPPLY("BG LDO21", RT5514_PWR_ANA1,
584 		RT5514_POW_BG_LDO21_BIT, 0, NULL, 0),
585 	SND_SOC_DAPM_SUPPLY("BG MBIAS", RT5514_PWR_ANA2,
586 		RT5514_POW_BG_MBIAS_BIT, 0, NULL, 0),
587 	SND_SOC_DAPM_SUPPLY("MBIAS", RT5514_PWR_ANA2, RT5514_POW_MBIAS_BIT, 0,
588 		NULL, 0),
589 	SND_SOC_DAPM_SUPPLY("VREF2", RT5514_PWR_ANA2, RT5514_POW_VREF2_BIT, 0,
590 		NULL, 0),
591 	SND_SOC_DAPM_SUPPLY("VREF1", RT5514_PWR_ANA2, RT5514_POW_VREF1_BIT, 0,
592 		NULL, 0),
593 	SND_SOC_DAPM_SUPPLY("ADC Power", SND_SOC_NOPM, 0, 0, NULL, 0),
594 
595 
596 	SND_SOC_DAPM_SUPPLY("LDO16L", RT5514_PWR_ANA2, RT5514_POWL_LDO16_BIT, 0,
597 		NULL, 0),
598 	SND_SOC_DAPM_SUPPLY("ADC1L", RT5514_PWR_ANA2, RT5514_POW_ADC1_L_BIT, 0,
599 		NULL, 0),
600 	SND_SOC_DAPM_SUPPLY("BSTL2", RT5514_PWR_ANA2, RT5514_POW2_BSTL_BIT, 0,
601 		NULL, 0),
602 	SND_SOC_DAPM_SUPPLY("BSTL", RT5514_PWR_ANA2, RT5514_POW_BSTL_BIT, 0,
603 		NULL, 0),
604 	SND_SOC_DAPM_SUPPLY("ADCFEDL", RT5514_PWR_ANA2, RT5514_POW_ADCFEDL_BIT,
605 		0, NULL, 0),
606 	SND_SOC_DAPM_SUPPLY("ADCL Power", SND_SOC_NOPM, 0, 0, NULL, 0),
607 
608 	SND_SOC_DAPM_SUPPLY("LDO16R", RT5514_PWR_ANA2, RT5514_POWR_LDO16_BIT, 0,
609 		NULL, 0),
610 	SND_SOC_DAPM_SUPPLY("ADC1R", RT5514_PWR_ANA2, RT5514_POW_ADC1_R_BIT, 0,
611 		NULL, 0),
612 	SND_SOC_DAPM_SUPPLY("BSTR2", RT5514_PWR_ANA2, RT5514_POW2_BSTR_BIT, 0,
613 		NULL, 0),
614 	SND_SOC_DAPM_SUPPLY("BSTR", RT5514_PWR_ANA2, RT5514_POW_BSTR_BIT, 0,
615 		NULL, 0),
616 	SND_SOC_DAPM_SUPPLY("ADCFEDR", RT5514_PWR_ANA2, RT5514_POW_ADCFEDR_BIT,
617 		0, NULL, 0),
618 	SND_SOC_DAPM_SUPPLY("ADCR Power", SND_SOC_NOPM, 0, 0, NULL, 0),
619 
620 	SND_SOC_DAPM_SUPPLY("PLL1 LDO ENABLE", RT5514_ANA_CTRL_PLL1_2,
621 		RT5514_EN_LDO_PLL1_BIT, 0, NULL, 0),
622 	SND_SOC_DAPM_SUPPLY("PLL1 LDO", RT5514_PWR_ANA2,
623 		RT5514_POW_PLL1_LDO_BIT, 0, NULL, 0),
624 	SND_SOC_DAPM_SUPPLY("PLL1", RT5514_PWR_ANA2, RT5514_POW_PLL1_BIT, 0,
625 		NULL, 0),
626 	SND_SOC_DAPM_SUPPLY_S("ASRC AD1", 1, RT5514_CLK_CTRL2,
627 		RT5514_CLK_AD0_ASRC_EN_BIT, 0, NULL, 0),
628 	SND_SOC_DAPM_SUPPLY_S("ASRC AD2", 1, RT5514_CLK_CTRL2,
629 		RT5514_CLK_AD1_ASRC_EN_BIT, 0, NULL, 0),
630 
631 	/* ADC Mux */
632 	SND_SOC_DAPM_MUX("Stereo1 DMIC Mux", SND_SOC_NOPM, 0, 0,
633 				&rt5514_sto1_dmic_mux),
634 	SND_SOC_DAPM_MUX("Stereo2 DMIC Mux", SND_SOC_NOPM, 0, 0,
635 				&rt5514_sto2_dmic_mux),
636 
637 	/* ADC Mixer */
638 	SND_SOC_DAPM_SUPPLY("adc stereo1 filter", RT5514_CLK_CTRL1,
639 		RT5514_CLK_AD0_EN_BIT, 0, NULL, 0),
640 	SND_SOC_DAPM_SUPPLY("adc stereo2 filter", RT5514_CLK_CTRL1,
641 		RT5514_CLK_AD1_EN_BIT, 0, NULL, 0),
642 
643 	SND_SOC_DAPM_MIXER("Sto1 ADC MIXL", SND_SOC_NOPM, 0, 0,
644 		rt5514_sto1_adc_l_mix, ARRAY_SIZE(rt5514_sto1_adc_l_mix)),
645 	SND_SOC_DAPM_MIXER("Sto1 ADC MIXR", SND_SOC_NOPM, 0, 0,
646 		rt5514_sto1_adc_r_mix, ARRAY_SIZE(rt5514_sto1_adc_r_mix)),
647 	SND_SOC_DAPM_MIXER("Sto2 ADC MIXL", SND_SOC_NOPM, 0, 0,
648 		rt5514_sto2_adc_l_mix, ARRAY_SIZE(rt5514_sto2_adc_l_mix)),
649 	SND_SOC_DAPM_MIXER("Sto2 ADC MIXR", SND_SOC_NOPM, 0, 0,
650 		rt5514_sto2_adc_r_mix, ARRAY_SIZE(rt5514_sto2_adc_r_mix)),
651 
652 	SND_SOC_DAPM_ADC("Stereo1 ADC MIXL", NULL, RT5514_DOWNFILTER0_CTRL1,
653 		RT5514_AD_AD_MUTE_BIT, 1),
654 	SND_SOC_DAPM_ADC("Stereo1 ADC MIXR", NULL, RT5514_DOWNFILTER0_CTRL2,
655 		RT5514_AD_AD_MUTE_BIT, 1),
656 	SND_SOC_DAPM_ADC("Stereo2 ADC MIXL", NULL, RT5514_DOWNFILTER1_CTRL1,
657 		RT5514_AD_AD_MUTE_BIT, 1),
658 	SND_SOC_DAPM_ADC("Stereo2 ADC MIXR", NULL, RT5514_DOWNFILTER1_CTRL2,
659 		RT5514_AD_AD_MUTE_BIT, 1),
660 
661 	/* ADC PGA */
662 	SND_SOC_DAPM_PGA("Stereo1 ADC MIX", SND_SOC_NOPM, 0, 0, NULL, 0),
663 	SND_SOC_DAPM_PGA("Stereo2 ADC MIX", SND_SOC_NOPM, 0, 0, NULL, 0),
664 
665 	/* Audio Interface */
666 	SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0),
667 };
668 
669 static const struct snd_soc_dapm_route rt5514_dapm_routes[] = {
670 	{ "DMIC1", NULL, "DMIC1L" },
671 	{ "DMIC1", NULL, "DMIC1R" },
672 	{ "DMIC2", NULL, "DMIC2L" },
673 	{ "DMIC2", NULL, "DMIC2R" },
674 
675 	{ "DMIC1L", NULL, "DMIC CLK" },
676 	{ "DMIC1R", NULL, "DMIC CLK" },
677 	{ "DMIC2L", NULL, "DMIC CLK" },
678 	{ "DMIC2R", NULL, "DMIC CLK" },
679 
680 	{ "Stereo1 DMIC Mux", "DMIC1", "DMIC1" },
681 	{ "Stereo1 DMIC Mux", "DMIC2", "DMIC2" },
682 
683 	{ "Sto1 ADC MIXL", "DMIC Switch", "Stereo1 DMIC Mux" },
684 	{ "Sto1 ADC MIXL", "ADC Switch", "AMICL" },
685 	{ "Sto1 ADC MIXR", "DMIC Switch", "Stereo1 DMIC Mux" },
686 	{ "Sto1 ADC MIXR", "ADC Switch", "AMICR" },
687 
688 	{ "ADC Power", NULL, "LDO18 IN" },
689 	{ "ADC Power", NULL, "LDO18 ADC" },
690 	{ "ADC Power", NULL, "LDO21" },
691 	{ "ADC Power", NULL, "BG LDO18 IN" },
692 	{ "ADC Power", NULL, "BG LDO21" },
693 	{ "ADC Power", NULL, "BG MBIAS" },
694 	{ "ADC Power", NULL, "MBIAS" },
695 	{ "ADC Power", NULL, "VREF2" },
696 	{ "ADC Power", NULL, "VREF1" },
697 
698 	{ "ADCL Power", NULL, "LDO16L" },
699 	{ "ADCL Power", NULL, "ADC1L" },
700 	{ "ADCL Power", NULL, "BSTL2" },
701 	{ "ADCL Power", NULL, "BSTL" },
702 	{ "ADCL Power", NULL, "ADCFEDL" },
703 
704 	{ "ADCR Power", NULL, "LDO16R" },
705 	{ "ADCR Power", NULL, "ADC1R" },
706 	{ "ADCR Power", NULL, "BSTR2" },
707 	{ "ADCR Power", NULL, "BSTR" },
708 	{ "ADCR Power", NULL, "ADCFEDR" },
709 
710 	{ "AMICL", NULL, "ADC CLK" },
711 	{ "AMICL", NULL, "ADC Power" },
712 	{ "AMICL", NULL, "ADCL Power" },
713 	{ "AMICR", NULL, "ADC CLK" },
714 	{ "AMICR", NULL, "ADC Power" },
715 	{ "AMICR", NULL, "ADCR Power" },
716 
717 	{ "PLL1 LDO", NULL, "PLL1 LDO ENABLE" },
718 	{ "PLL1", NULL, "PLL1 LDO" },
719 
720 	{ "Stereo1 ADC MIXL", NULL, "Sto1 ADC MIXL" },
721 	{ "Stereo1 ADC MIXR", NULL, "Sto1 ADC MIXR" },
722 
723 	{ "Stereo1 ADC MIX", NULL, "Stereo1 ADC MIXL" },
724 	{ "Stereo1 ADC MIX", NULL, "Stereo1 ADC MIXR" },
725 	{ "Stereo1 ADC MIX", NULL, "adc stereo1 filter" },
726 	{ "adc stereo1 filter", NULL, "PLL1", rt5514_is_sys_clk_from_pll },
727 	{ "adc stereo1 filter", NULL, "ASRC AD1", rt5514_i2s_use_asrc },
728 
729 	{ "Stereo2 DMIC Mux", "DMIC1", "DMIC1" },
730 	{ "Stereo2 DMIC Mux", "DMIC2", "DMIC2" },
731 
732 	{ "Sto2 ADC MIXL", "DMIC Switch", "Stereo2 DMIC Mux" },
733 	{ "Sto2 ADC MIXL", "ADC Switch", "AMICL" },
734 	{ "Sto2 ADC MIXR", "DMIC Switch", "Stereo2 DMIC Mux" },
735 	{ "Sto2 ADC MIXR", "ADC Switch", "AMICR" },
736 
737 	{ "Stereo2 ADC MIXL", NULL, "Sto2 ADC MIXL" },
738 	{ "Stereo2 ADC MIXR", NULL, "Sto2 ADC MIXR" },
739 
740 	{ "Stereo2 ADC MIX", NULL, "Stereo2 ADC MIXL" },
741 	{ "Stereo2 ADC MIX", NULL, "Stereo2 ADC MIXR" },
742 	{ "Stereo2 ADC MIX", NULL, "adc stereo2 filter" },
743 	{ "adc stereo2 filter", NULL, "PLL1", rt5514_is_sys_clk_from_pll },
744 	{ "adc stereo2 filter", NULL, "ASRC AD2", rt5514_i2s_use_asrc },
745 
746 	{ "AIF1TX", NULL, "Stereo1 ADC MIX"},
747 	{ "AIF1TX", NULL, "Stereo2 ADC MIX"},
748 };
749 
rt5514_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)750 static int rt5514_hw_params(struct snd_pcm_substream *substream,
751 	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
752 {
753 	struct snd_soc_component *component = dai->component;
754 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
755 	int pre_div, bclk_ms, frame_size;
756 	unsigned int val_len = 0;
757 
758 	rt5514->lrck = params_rate(params);
759 	pre_div = rl6231_get_clk_info(rt5514->sysclk, rt5514->lrck);
760 	if (pre_div < 0) {
761 		dev_err(component->dev, "Unsupported clock setting\n");
762 		return -EINVAL;
763 	}
764 
765 	frame_size = snd_soc_params_to_frame_size(params);
766 	if (frame_size < 0) {
767 		dev_err(component->dev, "Unsupported frame size: %d\n", frame_size);
768 		return -EINVAL;
769 	}
770 
771 	bclk_ms = frame_size > 32;
772 	rt5514->bclk = rt5514->lrck * (32 << bclk_ms);
773 
774 	dev_dbg(dai->dev, "bclk is %dHz and lrck is %dHz\n",
775 		rt5514->bclk, rt5514->lrck);
776 	dev_dbg(dai->dev, "bclk_ms is %d and pre_div is %d for iis %d\n",
777 				bclk_ms, pre_div, dai->id);
778 
779 	switch (params_format(params)) {
780 	case SNDRV_PCM_FORMAT_S16_LE:
781 		break;
782 	case SNDRV_PCM_FORMAT_S20_3LE:
783 		val_len = RT5514_I2S_DL_20;
784 		break;
785 	case SNDRV_PCM_FORMAT_S24_LE:
786 		val_len = RT5514_I2S_DL_24;
787 		break;
788 	case SNDRV_PCM_FORMAT_S8:
789 		val_len = RT5514_I2S_DL_8;
790 		break;
791 	default:
792 		return -EINVAL;
793 	}
794 
795 	regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL1, RT5514_I2S_DL_MASK,
796 		val_len);
797 	regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL1,
798 		RT5514_CLK_AD_ANA1_SEL_MASK,
799 		(pre_div + 1) << RT5514_CLK_AD_ANA1_SEL_SFT);
800 	regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL2,
801 		RT5514_CLK_SYS_DIV_OUT_MASK | RT5514_SEL_ADC_OSR_MASK,
802 		pre_div << RT5514_CLK_SYS_DIV_OUT_SFT |
803 		pre_div << RT5514_SEL_ADC_OSR_SFT);
804 
805 	return 0;
806 }
807 
rt5514_set_dai_fmt(struct snd_soc_dai * dai,unsigned int fmt)808 static int rt5514_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
809 {
810 	struct snd_soc_component *component = dai->component;
811 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
812 	unsigned int reg_val = 0;
813 
814 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
815 	case SND_SOC_DAIFMT_NB_NF:
816 		break;
817 
818 	case SND_SOC_DAIFMT_NB_IF:
819 		reg_val |= RT5514_I2S_LR_INV;
820 		break;
821 
822 	case SND_SOC_DAIFMT_IB_NF:
823 		reg_val |= RT5514_I2S_BP_INV;
824 		break;
825 
826 	case SND_SOC_DAIFMT_IB_IF:
827 		reg_val |= RT5514_I2S_BP_INV | RT5514_I2S_LR_INV;
828 		break;
829 
830 	default:
831 		return -EINVAL;
832 	}
833 
834 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
835 	case SND_SOC_DAIFMT_I2S:
836 		break;
837 
838 	case SND_SOC_DAIFMT_LEFT_J:
839 		reg_val |= RT5514_I2S_DF_LEFT;
840 		break;
841 
842 	case SND_SOC_DAIFMT_DSP_A:
843 		reg_val |= RT5514_I2S_DF_PCM_A;
844 		break;
845 
846 	case SND_SOC_DAIFMT_DSP_B:
847 		reg_val |= RT5514_I2S_DF_PCM_B;
848 		break;
849 
850 	default:
851 		return -EINVAL;
852 	}
853 
854 	regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL1,
855 		RT5514_I2S_DF_MASK | RT5514_I2S_BP_MASK | RT5514_I2S_LR_MASK,
856 		reg_val);
857 
858 	return 0;
859 }
860 
rt5514_set_dai_sysclk(struct snd_soc_dai * dai,int clk_id,unsigned int freq,int dir)861 static int rt5514_set_dai_sysclk(struct snd_soc_dai *dai,
862 		int clk_id, unsigned int freq, int dir)
863 {
864 	struct snd_soc_component *component = dai->component;
865 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
866 	unsigned int reg_val = 0;
867 
868 	if (freq == rt5514->sysclk && clk_id == rt5514->sysclk_src)
869 		return 0;
870 
871 	switch (clk_id) {
872 	case RT5514_SCLK_S_MCLK:
873 		reg_val |= RT5514_CLK_SYS_PRE_SEL_MCLK;
874 		break;
875 
876 	case RT5514_SCLK_S_PLL1:
877 		reg_val |= RT5514_CLK_SYS_PRE_SEL_PLL;
878 		break;
879 
880 	default:
881 		dev_err(component->dev, "Invalid clock id (%d)\n", clk_id);
882 		return -EINVAL;
883 	}
884 
885 	regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL2,
886 		RT5514_CLK_SYS_PRE_SEL_MASK, reg_val);
887 
888 	rt5514->sysclk = freq;
889 	rt5514->sysclk_src = clk_id;
890 
891 	dev_dbg(dai->dev, "Sysclk is %dHz and clock id is %d\n", freq, clk_id);
892 
893 	return 0;
894 }
895 
rt5514_set_dai_pll(struct snd_soc_dai * dai,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)896 static int rt5514_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source,
897 			unsigned int freq_in, unsigned int freq_out)
898 {
899 	struct snd_soc_component *component = dai->component;
900 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
901 	struct rl6231_pll_code pll_code;
902 	int ret;
903 
904 	if (!freq_in || !freq_out) {
905 		dev_dbg(component->dev, "PLL disabled\n");
906 
907 		rt5514->pll_in = 0;
908 		rt5514->pll_out = 0;
909 		regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL2,
910 			RT5514_CLK_SYS_PRE_SEL_MASK,
911 			RT5514_CLK_SYS_PRE_SEL_MCLK);
912 
913 		return 0;
914 	}
915 
916 	if (source == rt5514->pll_src && freq_in == rt5514->pll_in &&
917 	    freq_out == rt5514->pll_out)
918 		return 0;
919 
920 	switch (source) {
921 	case RT5514_PLL1_S_MCLK:
922 		regmap_update_bits(rt5514->regmap, RT5514_PLL_SOURCE_CTRL,
923 			RT5514_PLL_1_SEL_MASK, RT5514_PLL_1_SEL_MCLK);
924 		break;
925 
926 	case RT5514_PLL1_S_BCLK:
927 		regmap_update_bits(rt5514->regmap, RT5514_PLL_SOURCE_CTRL,
928 			RT5514_PLL_1_SEL_MASK, RT5514_PLL_1_SEL_SCLK);
929 		break;
930 
931 	default:
932 		dev_err(component->dev, "Unknown PLL source %d\n", source);
933 		return -EINVAL;
934 	}
935 
936 	ret = rl6231_pll_calc(freq_in, freq_out, &pll_code);
937 	if (ret < 0) {
938 		dev_err(component->dev, "Unsupported input clock %d\n", freq_in);
939 		return ret;
940 	}
941 
942 	dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n",
943 		pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code),
944 		pll_code.n_code, pll_code.k_code);
945 
946 	regmap_write(rt5514->regmap, RT5514_ANA_CTRL_PLL1_1,
947 		pll_code.k_code << RT5514_PLL_K_SFT |
948 		pll_code.n_code << RT5514_PLL_N_SFT |
949 		(pll_code.m_bp ? 0 : pll_code.m_code) << RT5514_PLL_M_SFT);
950 	regmap_update_bits(rt5514->regmap, RT5514_ANA_CTRL_PLL1_2,
951 		RT5514_PLL_M_BP, pll_code.m_bp << RT5514_PLL_M_BP_SFT);
952 
953 	rt5514->pll_in = freq_in;
954 	rt5514->pll_out = freq_out;
955 	rt5514->pll_src = source;
956 
957 	return 0;
958 }
959 
rt5514_set_tdm_slot(struct snd_soc_dai * dai,unsigned int tx_mask,unsigned int rx_mask,int slots,int slot_width)960 static int rt5514_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
961 			unsigned int rx_mask, int slots, int slot_width)
962 {
963 	struct snd_soc_component *component = dai->component;
964 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
965 	unsigned int val = 0, val2 = 0;
966 
967 	if (rx_mask || tx_mask)
968 		val |= RT5514_TDM_MODE;
969 
970 	switch (tx_mask) {
971 	case 0x3:
972 		val2 |= RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH2 |
973 			RT5514_TDM_DOCKING_START_SLOT0;
974 		break;
975 
976 	case 0x30:
977 		val2 |= RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH2 |
978 			RT5514_TDM_DOCKING_START_SLOT4;
979 		break;
980 
981 	case 0xf:
982 		val2 |= RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH4 |
983 			RT5514_TDM_DOCKING_START_SLOT0;
984 		break;
985 
986 	case 0xf0:
987 		val2 |= RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH4 |
988 			RT5514_TDM_DOCKING_START_SLOT4;
989 		break;
990 
991 	default:
992 		break;
993 	}
994 
995 
996 
997 	switch (slots) {
998 	case 4:
999 		val |= RT5514_TDMSLOT_SEL_RX_4CH | RT5514_TDMSLOT_SEL_TX_4CH;
1000 		break;
1001 
1002 	case 6:
1003 		val |= RT5514_TDMSLOT_SEL_RX_6CH | RT5514_TDMSLOT_SEL_TX_6CH;
1004 		break;
1005 
1006 	case 8:
1007 		val |= RT5514_TDMSLOT_SEL_RX_8CH | RT5514_TDMSLOT_SEL_TX_8CH;
1008 		break;
1009 
1010 	case 2:
1011 	default:
1012 		break;
1013 	}
1014 
1015 	switch (slot_width) {
1016 	case 20:
1017 		val |= RT5514_CH_LEN_RX_20 | RT5514_CH_LEN_TX_20;
1018 		break;
1019 
1020 	case 24:
1021 		val |= RT5514_CH_LEN_RX_24 | RT5514_CH_LEN_TX_24;
1022 		break;
1023 
1024 	case 25:
1025 		val |= RT5514_TDM_MODE2;
1026 		break;
1027 
1028 	case 32:
1029 		val |= RT5514_CH_LEN_RX_32 | RT5514_CH_LEN_TX_32;
1030 		break;
1031 
1032 	case 16:
1033 	default:
1034 		break;
1035 	}
1036 
1037 	regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL1, RT5514_TDM_MODE |
1038 		RT5514_TDMSLOT_SEL_RX_MASK | RT5514_TDMSLOT_SEL_TX_MASK |
1039 		RT5514_CH_LEN_RX_MASK | RT5514_CH_LEN_TX_MASK |
1040 		RT5514_TDM_MODE2, val);
1041 
1042 	regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL2,
1043 		RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH_MASK |
1044 		RT5514_TDM_DOCKING_START_MASK, val2);
1045 
1046 	return 0;
1047 }
1048 
rt5514_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)1049 static int rt5514_set_bias_level(struct snd_soc_component *component,
1050 			enum snd_soc_bias_level level)
1051 {
1052 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
1053 	int ret;
1054 
1055 	switch (level) {
1056 	case SND_SOC_BIAS_PREPARE:
1057 		if (IS_ERR(rt5514->mclk))
1058 			break;
1059 
1060 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_ON) {
1061 			clk_disable_unprepare(rt5514->mclk);
1062 		} else {
1063 			ret = clk_prepare_enable(rt5514->mclk);
1064 			if (ret)
1065 				return ret;
1066 		}
1067 		break;
1068 
1069 	case SND_SOC_BIAS_STANDBY:
1070 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1071 			/*
1072 			 * If the DSP is enabled in start of recording, the DSP
1073 			 * should be disabled, and sync back to normal recording
1074 			 * settings to make sure recording properly.
1075 			 */
1076 			if (rt5514->dsp_enabled) {
1077 				rt5514->dsp_enabled = 0;
1078 				regmap_multi_reg_write(rt5514->i2c_regmap,
1079 					rt5514_i2c_patch,
1080 					ARRAY_SIZE(rt5514_i2c_patch));
1081 				regcache_mark_dirty(rt5514->regmap);
1082 				regcache_sync(rt5514->regmap);
1083 			}
1084 		}
1085 		break;
1086 
1087 	default:
1088 		break;
1089 	}
1090 
1091 	return 0;
1092 }
1093 
rt5514_probe(struct snd_soc_component * component)1094 static int rt5514_probe(struct snd_soc_component *component)
1095 {
1096 	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
1097 	struct platform_device *pdev = container_of(component->dev,
1098 						   struct platform_device, dev);
1099 
1100 	rt5514->mclk = devm_clk_get(component->dev, "mclk");
1101 	if (PTR_ERR(rt5514->mclk) == -EPROBE_DEFER)
1102 		return -EPROBE_DEFER;
1103 
1104 	if (rt5514->pdata.dsp_calib_clk_name) {
1105 		rt5514->dsp_calib_clk = devm_clk_get(&pdev->dev,
1106 				rt5514->pdata.dsp_calib_clk_name);
1107 		if (PTR_ERR(rt5514->dsp_calib_clk) == -EPROBE_DEFER)
1108 			return -EPROBE_DEFER;
1109 	}
1110 
1111 	rt5514->component = component;
1112 	rt5514->pll3_cal_value = 0x0078b000;
1113 
1114 	return 0;
1115 }
1116 
rt5514_i2c_read(void * context,unsigned int reg,unsigned int * val)1117 static int rt5514_i2c_read(void *context, unsigned int reg, unsigned int *val)
1118 {
1119 	struct i2c_client *client = context;
1120 	struct rt5514_priv *rt5514 = i2c_get_clientdata(client);
1121 
1122 	regmap_read(rt5514->i2c_regmap, reg | RT5514_DSP_MAPPING, val);
1123 
1124 	return 0;
1125 }
1126 
rt5514_i2c_write(void * context,unsigned int reg,unsigned int val)1127 static int rt5514_i2c_write(void *context, unsigned int reg, unsigned int val)
1128 {
1129 	struct i2c_client *client = context;
1130 	struct rt5514_priv *rt5514 = i2c_get_clientdata(client);
1131 
1132 	regmap_write(rt5514->i2c_regmap, reg | RT5514_DSP_MAPPING, val);
1133 
1134 	return 0;
1135 }
1136 
1137 #define RT5514_STEREO_RATES SNDRV_PCM_RATE_8000_192000
1138 #define RT5514_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1139 			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
1140 
1141 static const struct snd_soc_dai_ops rt5514_aif_dai_ops = {
1142 	.hw_params = rt5514_hw_params,
1143 	.set_fmt = rt5514_set_dai_fmt,
1144 	.set_sysclk = rt5514_set_dai_sysclk,
1145 	.set_pll = rt5514_set_dai_pll,
1146 	.set_tdm_slot = rt5514_set_tdm_slot,
1147 };
1148 
1149 static struct snd_soc_dai_driver rt5514_dai[] = {
1150 	{
1151 		.name = "rt5514-aif1",
1152 		.id = 0,
1153 		.capture = {
1154 			.stream_name = "AIF1 Capture",
1155 			.channels_min = 1,
1156 			.channels_max = 4,
1157 			.rates = RT5514_STEREO_RATES,
1158 			.formats = RT5514_FORMATS,
1159 		},
1160 		.ops = &rt5514_aif_dai_ops,
1161 	}
1162 };
1163 
1164 static const struct snd_soc_component_driver soc_component_dev_rt5514 = {
1165 	.probe			= rt5514_probe,
1166 	.set_bias_level		= rt5514_set_bias_level,
1167 	.controls		= rt5514_snd_controls,
1168 	.num_controls		= ARRAY_SIZE(rt5514_snd_controls),
1169 	.dapm_widgets		= rt5514_dapm_widgets,
1170 	.num_dapm_widgets	= ARRAY_SIZE(rt5514_dapm_widgets),
1171 	.dapm_routes		= rt5514_dapm_routes,
1172 	.num_dapm_routes	= ARRAY_SIZE(rt5514_dapm_routes),
1173 	.use_pmdown_time	= 1,
1174 	.endianness		= 1,
1175 };
1176 
1177 static const struct regmap_config rt5514_i2c_regmap = {
1178 	.name = "i2c",
1179 	.reg_bits = 32,
1180 	.val_bits = 32,
1181 
1182 	.readable_reg = rt5514_i2c_readable_register,
1183 
1184 	.cache_type = REGCACHE_NONE,
1185 };
1186 
1187 static const struct regmap_config rt5514_regmap = {
1188 	.reg_bits = 16,
1189 	.val_bits = 32,
1190 
1191 	.max_register = RT5514_VENDOR_ID2,
1192 	.volatile_reg = rt5514_volatile_register,
1193 	.readable_reg = rt5514_readable_register,
1194 	.reg_read = rt5514_i2c_read,
1195 	.reg_write = rt5514_i2c_write,
1196 
1197 	.cache_type = REGCACHE_MAPLE,
1198 	.reg_defaults = rt5514_reg,
1199 	.num_reg_defaults = ARRAY_SIZE(rt5514_reg),
1200 	.use_single_read = true,
1201 	.use_single_write = true,
1202 };
1203 
1204 static const struct i2c_device_id rt5514_i2c_id[] = {
1205 	{ "rt5514", 0 },
1206 	{ }
1207 };
1208 MODULE_DEVICE_TABLE(i2c, rt5514_i2c_id);
1209 
1210 #if defined(CONFIG_OF)
1211 static const struct of_device_id rt5514_of_match[] = {
1212 	{ .compatible = "realtek,rt5514", },
1213 	{},
1214 };
1215 MODULE_DEVICE_TABLE(of, rt5514_of_match);
1216 #endif
1217 
1218 #ifdef CONFIG_ACPI
1219 static const struct acpi_device_id rt5514_acpi_match[] = {
1220 	{ "10EC5514", 0},
1221 	{},
1222 };
1223 MODULE_DEVICE_TABLE(acpi, rt5514_acpi_match);
1224 #endif
1225 
rt5514_parse_dp(struct rt5514_priv * rt5514,struct device * dev)1226 static int rt5514_parse_dp(struct rt5514_priv *rt5514, struct device *dev)
1227 {
1228 	device_property_read_u32(dev, "realtek,dmic-init-delay-ms",
1229 		&rt5514->pdata.dmic_init_delay);
1230 	device_property_read_string(dev, "realtek,dsp-calib-clk-name",
1231 		&rt5514->pdata.dsp_calib_clk_name);
1232 	device_property_read_u32(dev, "realtek,dsp-calib-clk-rate",
1233 		&rt5514->pdata.dsp_calib_clk_rate);
1234 
1235 	return 0;
1236 }
1237 
rt5514_i2c_resume(struct device * dev)1238 static __maybe_unused int rt5514_i2c_resume(struct device *dev)
1239 {
1240 	struct rt5514_priv *rt5514 = dev_get_drvdata(dev);
1241 	unsigned int val;
1242 
1243 	/*
1244 	 * Add a bogus read to avoid rt5514's confusion after s2r in case it
1245 	 * saw glitches on the i2c lines and thought the other side sent a
1246 	 * start bit.
1247 	 */
1248 	regmap_read(rt5514->regmap, RT5514_VENDOR_ID2, &val);
1249 
1250 	return 0;
1251 }
1252 
rt5514_i2c_probe(struct i2c_client * i2c)1253 static int rt5514_i2c_probe(struct i2c_client *i2c)
1254 {
1255 	struct rt5514_platform_data *pdata = dev_get_platdata(&i2c->dev);
1256 	struct rt5514_priv *rt5514;
1257 	int ret;
1258 	unsigned int val = ~0;
1259 
1260 	rt5514 = devm_kzalloc(&i2c->dev, sizeof(struct rt5514_priv),
1261 				GFP_KERNEL);
1262 	if (rt5514 == NULL)
1263 		return -ENOMEM;
1264 
1265 	i2c_set_clientdata(i2c, rt5514);
1266 
1267 	if (pdata)
1268 		rt5514->pdata = *pdata;
1269 	else
1270 		rt5514_parse_dp(rt5514, &i2c->dev);
1271 
1272 	rt5514->i2c_regmap = devm_regmap_init_i2c(i2c, &rt5514_i2c_regmap);
1273 	if (IS_ERR(rt5514->i2c_regmap)) {
1274 		ret = PTR_ERR(rt5514->i2c_regmap);
1275 		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1276 			ret);
1277 		return ret;
1278 	}
1279 
1280 	rt5514->regmap = devm_regmap_init(&i2c->dev, NULL, i2c, &rt5514_regmap);
1281 	if (IS_ERR(rt5514->regmap)) {
1282 		ret = PTR_ERR(rt5514->regmap);
1283 		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1284 			ret);
1285 		return ret;
1286 	}
1287 
1288 	/*
1289 	 * The rt5514 can get confused if the i2c lines glitch together, as
1290 	 * can happen at bootup as regulators are turned off and on.  If it's
1291 	 * in this glitched state the first i2c read will fail, so we'll give
1292 	 * it one change to retry.
1293 	 */
1294 	ret = regmap_read(rt5514->regmap, RT5514_VENDOR_ID2, &val);
1295 	if (ret || val != RT5514_DEVICE_ID)
1296 		ret = regmap_read(rt5514->regmap, RT5514_VENDOR_ID2, &val);
1297 	if (ret || val != RT5514_DEVICE_ID) {
1298 		dev_err(&i2c->dev,
1299 			"Device with ID register %x is not rt5514\n", val);
1300 		return -ENODEV;
1301 	}
1302 
1303 	ret = regmap_multi_reg_write(rt5514->i2c_regmap, rt5514_i2c_patch,
1304 				    ARRAY_SIZE(rt5514_i2c_patch));
1305 	if (ret != 0)
1306 		dev_warn(&i2c->dev, "Failed to apply i2c_regmap patch: %d\n",
1307 			ret);
1308 
1309 	ret = regmap_register_patch(rt5514->regmap, rt5514_patch,
1310 				    ARRAY_SIZE(rt5514_patch));
1311 	if (ret != 0)
1312 		dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);
1313 
1314 	return devm_snd_soc_register_component(&i2c->dev,
1315 			&soc_component_dev_rt5514,
1316 			rt5514_dai, ARRAY_SIZE(rt5514_dai));
1317 }
1318 
1319 static const struct dev_pm_ops rt5514_i2_pm_ops = {
1320 	SET_SYSTEM_SLEEP_PM_OPS(NULL, rt5514_i2c_resume)
1321 };
1322 
1323 static struct i2c_driver rt5514_i2c_driver = {
1324 	.driver = {
1325 		.name = "rt5514",
1326 		.acpi_match_table = ACPI_PTR(rt5514_acpi_match),
1327 		.of_match_table = of_match_ptr(rt5514_of_match),
1328 		.pm = &rt5514_i2_pm_ops,
1329 	},
1330 	.probe = rt5514_i2c_probe,
1331 	.id_table = rt5514_i2c_id,
1332 };
1333 module_i2c_driver(rt5514_i2c_driver);
1334 
1335 MODULE_DESCRIPTION("ASoC RT5514 driver");
1336 MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>");
1337 MODULE_LICENSE("GPL v2");
1338