1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  *  byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
4  *
5  *  Copyright (C) 2014 Intel Corp
6  *  Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
7  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8  *
9  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10  */
11 
12 #include <linux/i2c.h>
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/platform_device.h>
17 #include <linux/acpi.h>
18 #include <linux/clk.h>
19 #include <linux/device.h>
20 #include <linux/dmi.h>
21 #include <linux/input.h>
22 #include <linux/slab.h>
23 #include <asm/cpu_device_id.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/soc.h>
27 #include <sound/jack.h>
28 #include <sound/soc-acpi.h>
29 #include <dt-bindings/sound/rt5640.h>
30 #include "../../codecs/rt5640.h"
31 #include "../atom/sst-atom-controls.h"
32 #include "../common/sst-dsp.h"
33 
34 enum {
35 	BYT_RT5640_DMIC1_MAP,
36 	BYT_RT5640_DMIC2_MAP,
37 	BYT_RT5640_IN1_MAP,
38 	BYT_RT5640_IN3_MAP,
39 };
40 
41 enum {
42 	BYT_RT5640_JD_SRC_GPIO1		= (RT5640_JD_SRC_GPIO1 << 4),
43 	BYT_RT5640_JD_SRC_JD1_IN4P	= (RT5640_JD_SRC_JD1_IN4P << 4),
44 	BYT_RT5640_JD_SRC_JD2_IN4N	= (RT5640_JD_SRC_JD2_IN4N << 4),
45 	BYT_RT5640_JD_SRC_GPIO2		= (RT5640_JD_SRC_GPIO2 << 4),
46 	BYT_RT5640_JD_SRC_GPIO3		= (RT5640_JD_SRC_GPIO3 << 4),
47 	BYT_RT5640_JD_SRC_GPIO4		= (RT5640_JD_SRC_GPIO4 << 4),
48 };
49 
50 enum {
51 	BYT_RT5640_OVCD_TH_600UA	= (6 << 8),
52 	BYT_RT5640_OVCD_TH_1500UA	= (15 << 8),
53 	BYT_RT5640_OVCD_TH_2000UA	= (20 << 8),
54 };
55 
56 enum {
57 	BYT_RT5640_OVCD_SF_0P5		= (RT5640_OVCD_SF_0P5 << 13),
58 	BYT_RT5640_OVCD_SF_0P75		= (RT5640_OVCD_SF_0P75 << 13),
59 	BYT_RT5640_OVCD_SF_1P0		= (RT5640_OVCD_SF_1P0 << 13),
60 	BYT_RT5640_OVCD_SF_1P5		= (RT5640_OVCD_SF_1P5 << 13),
61 };
62 
63 #define BYT_RT5640_MAP(quirk)		((quirk) &  GENMASK(3, 0))
64 #define BYT_RT5640_JDSRC(quirk)		(((quirk) & GENMASK(7, 4)) >> 4)
65 #define BYT_RT5640_OVCD_TH(quirk)	(((quirk) & GENMASK(12, 8)) >> 8)
66 #define BYT_RT5640_OVCD_SF(quirk)	(((quirk) & GENMASK(14, 13)) >> 13)
67 #define BYT_RT5640_JD_NOT_INV		BIT(16)
68 #define BYT_RT5640_MONO_SPEAKER		BIT(17)
69 #define BYT_RT5640_DIFF_MIC		BIT(18) /* default is single-ended */
70 #define BYT_RT5640_SSP2_AIF2		BIT(19) /* default is using AIF1  */
71 #define BYT_RT5640_SSP0_AIF1		BIT(20)
72 #define BYT_RT5640_SSP0_AIF2		BIT(21)
73 #define BYT_RT5640_MCLK_EN		BIT(22)
74 #define BYT_RT5640_MCLK_25MHZ		BIT(23)
75 
76 #define BYTCR_INPUT_DEFAULTS				\
77 	(BYT_RT5640_IN3_MAP |				\
78 	 BYT_RT5640_JD_SRC_JD1_IN4P |			\
79 	 BYT_RT5640_OVCD_TH_2000UA |			\
80 	 BYT_RT5640_OVCD_SF_0P75 |			\
81 	 BYT_RT5640_DIFF_MIC)
82 
83 /* in-diff or dmic-pin + jdsrc + ovcd-th + -sf + jd-inv + terminating entry */
84 #define MAX_NO_PROPS 6
85 
86 struct byt_rt5640_private {
87 	struct snd_soc_jack jack;
88 	struct clk *mclk;
89 };
90 static bool is_bytcr;
91 
92 static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
93 static int quirk_override = -1;
94 module_param_named(quirk, quirk_override, int, 0444);
95 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
96 
97 static void log_quirks(struct device *dev)
98 {
99 	int map;
100 	bool has_mclk = false;
101 	bool has_ssp0 = false;
102 	bool has_ssp0_aif1 = false;
103 	bool has_ssp0_aif2 = false;
104 	bool has_ssp2_aif2 = false;
105 
106 	map = BYT_RT5640_MAP(byt_rt5640_quirk);
107 	switch (map) {
108 	case BYT_RT5640_DMIC1_MAP:
109 		dev_info(dev, "quirk DMIC1_MAP enabled\n");
110 		break;
111 	case BYT_RT5640_DMIC2_MAP:
112 		dev_info(dev, "quirk DMIC2_MAP enabled\n");
113 		break;
114 	case BYT_RT5640_IN1_MAP:
115 		dev_info(dev, "quirk IN1_MAP enabled\n");
116 		break;
117 	case BYT_RT5640_IN3_MAP:
118 		dev_info(dev, "quirk IN3_MAP enabled\n");
119 		break;
120 	default:
121 		dev_err(dev, "quirk map 0x%x is not supported, microphone input will not work\n", map);
122 		break;
123 	}
124 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
125 		dev_info(dev, "quirk realtek,jack-detect-source %ld\n",
126 			 BYT_RT5640_JDSRC(byt_rt5640_quirk));
127 		dev_info(dev, "quirk realtek,over-current-threshold-microamp %ld\n",
128 			 BYT_RT5640_OVCD_TH(byt_rt5640_quirk) * 100);
129 		dev_info(dev, "quirk realtek,over-current-scale-factor %ld\n",
130 			 BYT_RT5640_OVCD_SF(byt_rt5640_quirk));
131 	}
132 	if (byt_rt5640_quirk & BYT_RT5640_JD_NOT_INV)
133 		dev_info(dev, "quirk JD_NOT_INV enabled\n");
134 	if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
135 		dev_info(dev, "quirk MONO_SPEAKER enabled\n");
136 	if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
137 		dev_info(dev, "quirk DIFF_MIC enabled\n");
138 	if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
139 		dev_info(dev, "quirk SSP0_AIF1 enabled\n");
140 		has_ssp0 = true;
141 		has_ssp0_aif1 = true;
142 	}
143 	if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
144 		dev_info(dev, "quirk SSP0_AIF2 enabled\n");
145 		has_ssp0 = true;
146 		has_ssp0_aif2 = true;
147 	}
148 	if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
149 		dev_info(dev, "quirk SSP2_AIF2 enabled\n");
150 		has_ssp2_aif2 = true;
151 	}
152 	if (is_bytcr && !has_ssp0)
153 		dev_err(dev, "Invalid routing, bytcr detected but no SSP0-based quirk, audio cannot work with SSP2 on bytcr\n");
154 	if (has_ssp0_aif1 && has_ssp0_aif2)
155 		dev_err(dev, "Invalid routing, SSP0 cannot be connected to both AIF1 and AIF2\n");
156 	if (has_ssp0 && has_ssp2_aif2)
157 		dev_err(dev, "Invalid routing, cannot have both SSP0 and SSP2 connected to codec\n");
158 
159 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
160 		dev_info(dev, "quirk MCLK_EN enabled\n");
161 		has_mclk = true;
162 	}
163 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
164 		if (has_mclk)
165 			dev_info(dev, "quirk MCLK_25MHZ enabled\n");
166 		else
167 			dev_err(dev, "quirk MCLK_25MHZ enabled but quirk MCLK not selected, will be ignored\n");
168 	}
169 }
170 
171 static int byt_rt5640_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai,
172 					      int rate)
173 {
174 	int ret;
175 
176 	/* Configure the PLL before selecting it */
177 	if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
178 		/* use bitclock as PLL input */
179 		if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
180 		    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
181 			/* 2x16 bit slots on SSP0 */
182 			ret = snd_soc_dai_set_pll(codec_dai, 0,
183 						  RT5640_PLL1_S_BCLK1,
184 						  rate * 32, rate * 512);
185 		} else {
186 			/* 2x15 bit slots on SSP2 */
187 			ret = snd_soc_dai_set_pll(codec_dai, 0,
188 						  RT5640_PLL1_S_BCLK1,
189 						  rate * 50, rate * 512);
190 		}
191 	} else {
192 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
193 			ret = snd_soc_dai_set_pll(codec_dai, 0,
194 						  RT5640_PLL1_S_MCLK,
195 						  25000000, rate * 512);
196 		} else {
197 			ret = snd_soc_dai_set_pll(codec_dai, 0,
198 						  RT5640_PLL1_S_MCLK,
199 						  19200000, rate * 512);
200 		}
201 	}
202 
203 	if (ret < 0) {
204 		dev_err(codec_dai->component->dev, "can't set pll: %d\n", ret);
205 		return ret;
206 	}
207 
208 	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
209 				     rate * 512, SND_SOC_CLOCK_IN);
210 	if (ret < 0) {
211 		dev_err(codec_dai->component->dev, "can't set clock %d\n", ret);
212 		return ret;
213 	}
214 
215 	return 0;
216 }
217 
218 #define BYT_CODEC_DAI1	"rt5640-aif1"
219 #define BYT_CODEC_DAI2	"rt5640-aif2"
220 
221 static int platform_clock_control(struct snd_soc_dapm_widget *w,
222 				  struct snd_kcontrol *k, int  event)
223 {
224 	struct snd_soc_dapm_context *dapm = w->dapm;
225 	struct snd_soc_card *card = dapm->card;
226 	struct snd_soc_dai *codec_dai;
227 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
228 	int ret;
229 
230 	codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI1);
231 	if (!codec_dai)
232 		codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI2);
233 
234 	if (!codec_dai) {
235 		dev_err(card->dev,
236 			"Codec dai not found; Unable to set platform clock\n");
237 		return -EIO;
238 	}
239 
240 	if (SND_SOC_DAPM_EVENT_ON(event)) {
241 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
242 			ret = clk_prepare_enable(priv->mclk);
243 			if (ret < 0) {
244 				dev_err(card->dev,
245 					"could not configure MCLK state\n");
246 				return ret;
247 			}
248 		}
249 		ret = byt_rt5640_prepare_and_enable_pll1(codec_dai, 48000);
250 	} else {
251 		/*
252 		 * Set codec clock source to internal clock before
253 		 * turning off the platform clock. Codec needs clock
254 		 * for Jack detection and button press
255 		 */
256 		ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
257 					     48000 * 512,
258 					     SND_SOC_CLOCK_IN);
259 		if (!ret) {
260 			if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
261 				clk_disable_unprepare(priv->mclk);
262 		}
263 	}
264 
265 	if (ret < 0) {
266 		dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
267 		return ret;
268 	}
269 
270 	return 0;
271 }
272 
273 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
274 	SND_SOC_DAPM_HP("Headphone", NULL),
275 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
276 	SND_SOC_DAPM_MIC("Internal Mic", NULL),
277 	SND_SOC_DAPM_SPK("Speaker", NULL),
278 	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
279 			    platform_clock_control, SND_SOC_DAPM_PRE_PMU |
280 			    SND_SOC_DAPM_POST_PMD),
281 
282 };
283 
284 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
285 	{"Headphone", NULL, "Platform Clock"},
286 	{"Headset Mic", NULL, "Platform Clock"},
287 	{"Internal Mic", NULL, "Platform Clock"},
288 	{"Speaker", NULL, "Platform Clock"},
289 
290 	{"Headset Mic", NULL, "MICBIAS1"},
291 	{"IN2P", NULL, "Headset Mic"},
292 	{"Headphone", NULL, "HPOL"},
293 	{"Headphone", NULL, "HPOR"},
294 };
295 
296 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
297 	{"DMIC1", NULL, "Internal Mic"},
298 };
299 
300 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
301 	{"DMIC2", NULL, "Internal Mic"},
302 };
303 
304 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
305 	{"Internal Mic", NULL, "MICBIAS1"},
306 	{"IN1P", NULL, "Internal Mic"},
307 };
308 
309 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
310 	{"Internal Mic", NULL, "MICBIAS1"},
311 	{"IN3P", NULL, "Internal Mic"},
312 };
313 
314 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
315 	{"ssp2 Tx", NULL, "codec_out0"},
316 	{"ssp2 Tx", NULL, "codec_out1"},
317 	{"codec_in0", NULL, "ssp2 Rx"},
318 	{"codec_in1", NULL, "ssp2 Rx"},
319 
320 	{"AIF1 Playback", NULL, "ssp2 Tx"},
321 	{"ssp2 Rx", NULL, "AIF1 Capture"},
322 };
323 
324 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
325 	{"ssp2 Tx", NULL, "codec_out0"},
326 	{"ssp2 Tx", NULL, "codec_out1"},
327 	{"codec_in0", NULL, "ssp2 Rx"},
328 	{"codec_in1", NULL, "ssp2 Rx"},
329 
330 	{"AIF2 Playback", NULL, "ssp2 Tx"},
331 	{"ssp2 Rx", NULL, "AIF2 Capture"},
332 };
333 
334 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
335 	{"ssp0 Tx", NULL, "modem_out"},
336 	{"modem_in", NULL, "ssp0 Rx"},
337 
338 	{"AIF1 Playback", NULL, "ssp0 Tx"},
339 	{"ssp0 Rx", NULL, "AIF1 Capture"},
340 };
341 
342 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
343 	{"ssp0 Tx", NULL, "modem_out"},
344 	{"modem_in", NULL, "ssp0 Rx"},
345 
346 	{"AIF2 Playback", NULL, "ssp0 Tx"},
347 	{"ssp0 Rx", NULL, "AIF2 Capture"},
348 };
349 
350 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
351 	{"Speaker", NULL, "SPOLP"},
352 	{"Speaker", NULL, "SPOLN"},
353 	{"Speaker", NULL, "SPORP"},
354 	{"Speaker", NULL, "SPORN"},
355 };
356 
357 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
358 	{"Speaker", NULL, "SPOLP"},
359 	{"Speaker", NULL, "SPOLN"},
360 };
361 
362 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
363 	SOC_DAPM_PIN_SWITCH("Headphone"),
364 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
365 	SOC_DAPM_PIN_SWITCH("Internal Mic"),
366 	SOC_DAPM_PIN_SWITCH("Speaker"),
367 };
368 
369 static struct snd_soc_jack_pin rt5640_pins[] = {
370 	{
371 		.pin	= "Headphone",
372 		.mask	= SND_JACK_HEADPHONE,
373 	},
374 	{
375 		.pin	= "Headset Mic",
376 		.mask	= SND_JACK_MICROPHONE,
377 	},
378 };
379 
380 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
381 					struct snd_pcm_hw_params *params)
382 {
383 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
384 	struct snd_soc_dai *dai = rtd->codec_dai;
385 
386 	return byt_rt5640_prepare_and_enable_pll1(dai, params_rate(params));
387 }
388 
389 /* Please keep this list alphabetically sorted */
390 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
391 	{	/* Acer Iconia Tab 8 W1-810 */
392 		.matches = {
393 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
394 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Iconia W1-810"),
395 		},
396 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
397 					BYT_RT5640_JD_SRC_JD1_IN4P |
398 					BYT_RT5640_OVCD_TH_1500UA |
399 					BYT_RT5640_OVCD_SF_0P75 |
400 					BYT_RT5640_SSP0_AIF1 |
401 					BYT_RT5640_MCLK_EN),
402 	},
403 	{
404 		.matches = {
405 			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
406 			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
407 		},
408 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
409 						 BYT_RT5640_MCLK_EN |
410 						 BYT_RT5640_SSP0_AIF1),
411 
412 	},
413 	{
414 		.matches = {
415 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ARCHOS"),
416 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ARCHOS 80 Cesium"),
417 		},
418 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
419 					BYT_RT5640_MONO_SPEAKER |
420 					BYT_RT5640_SSP0_AIF1 |
421 					BYT_RT5640_MCLK_EN),
422 	},
423 	{
424 		.matches = {
425 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
426 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
427 		},
428 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
429 					BYT_RT5640_JD_SRC_JD2_IN4N |
430 					BYT_RT5640_OVCD_TH_2000UA |
431 					BYT_RT5640_OVCD_SF_0P75 |
432 					BYT_RT5640_SSP0_AIF1 |
433 					BYT_RT5640_MCLK_EN),
434 	},
435 	{
436 		.matches = {
437 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
438 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
439 		},
440 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
441 					BYT_RT5640_JD_SRC_JD2_IN4N |
442 					BYT_RT5640_OVCD_TH_2000UA |
443 					BYT_RT5640_OVCD_SF_0P75 |
444 					BYT_RT5640_MCLK_EN),
445 	},
446 	{
447 		.matches = {
448 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
449 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
450 		},
451 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
452 					BYT_RT5640_MONO_SPEAKER |
453 					BYT_RT5640_DIFF_MIC |
454 					BYT_RT5640_SSP0_AIF2 |
455 					BYT_RT5640_MCLK_EN),
456 	},
457 	{	/* Chuwi Vi8 (CWI506) */
458 		.matches = {
459 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"),
460 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "i86"),
461 			/* The above are too generic, also match BIOS info */
462 			DMI_MATCH(DMI_BIOS_VERSION, "CHUWI.D86JLBNR"),
463 		},
464 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
465 					BYT_RT5640_MONO_SPEAKER |
466 					BYT_RT5640_SSP0_AIF1 |
467 					BYT_RT5640_MCLK_EN),
468 	},
469 	{
470 		/* Chuwi Vi10 (CWI505) */
471 		.matches = {
472 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
473 			DMI_MATCH(DMI_BOARD_NAME, "BYT-PF02"),
474 			DMI_MATCH(DMI_SYS_VENDOR, "ilife"),
475 			DMI_MATCH(DMI_PRODUCT_NAME, "S165"),
476 		},
477 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
478 					BYT_RT5640_JD_SRC_JD2_IN4N |
479 					BYT_RT5640_OVCD_TH_2000UA |
480 					BYT_RT5640_OVCD_SF_0P75 |
481 					BYT_RT5640_DIFF_MIC |
482 					BYT_RT5640_SSP0_AIF1 |
483 					BYT_RT5640_MCLK_EN),
484 	},
485 	{
486 		.matches = {
487 			DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
488 			DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
489 		},
490 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP),
491 	},
492 	{	/* Connect Tablet 9 */
493 		.matches = {
494 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Connect"),
495 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Tablet 9"),
496 		},
497 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
498 					BYT_RT5640_MONO_SPEAKER |
499 					BYT_RT5640_SSP0_AIF1 |
500 					BYT_RT5640_MCLK_EN),
501 	},
502 	{
503 		.matches = {
504 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
505 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
506 		},
507 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
508 					BYT_RT5640_JD_SRC_JD2_IN4N |
509 					BYT_RT5640_OVCD_TH_2000UA |
510 					BYT_RT5640_OVCD_SF_0P75 |
511 					BYT_RT5640_MONO_SPEAKER |
512 					BYT_RT5640_MCLK_EN),
513 	},
514 	{
515 		.matches = {
516 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
517 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
518 		},
519 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
520 					BYT_RT5640_MCLK_EN),
521 	},
522 	{	/* HP Pavilion x2 10-n000nd */
523 		.matches = {
524 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
525 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP Pavilion x2 Detachable"),
526 		},
527 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
528 					BYT_RT5640_JD_SRC_JD2_IN4N |
529 					BYT_RT5640_OVCD_TH_1500UA |
530 					BYT_RT5640_OVCD_SF_0P75 |
531 					BYT_RT5640_SSP0_AIF1 |
532 					BYT_RT5640_MCLK_EN),
533 	},
534 	{	/* HP Stream 7 */
535 		.matches = {
536 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
537 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP Stream 7 Tablet"),
538 		},
539 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
540 					BYT_RT5640_MONO_SPEAKER |
541 					BYT_RT5640_JD_NOT_INV |
542 					BYT_RT5640_SSP0_AIF1 |
543 					BYT_RT5640_MCLK_EN),
544 	},
545 	{	/* I.T.Works TW891 */
546 		.matches = {
547 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
548 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
549 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
550 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
551 		},
552 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
553 					BYT_RT5640_MONO_SPEAKER |
554 					BYT_RT5640_SSP0_AIF1 |
555 					BYT_RT5640_MCLK_EN),
556 	},
557 	{	/* Lamina I8270 / T701BR.SE */
558 		.matches = {
559 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Lamina"),
560 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "T701BR.SE"),
561 		},
562 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
563 					BYT_RT5640_MONO_SPEAKER |
564 					BYT_RT5640_JD_NOT_INV |
565 					BYT_RT5640_SSP0_AIF1 |
566 					BYT_RT5640_MCLK_EN),
567 	},
568 	{	/* Lenovo Miix 2 8 */
569 		.matches = {
570 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
571 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "20326"),
572 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Hiking"),
573 		},
574 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
575 					BYT_RT5640_JD_SRC_JD2_IN4N |
576 					BYT_RT5640_OVCD_TH_2000UA |
577 					BYT_RT5640_OVCD_SF_0P75 |
578 					BYT_RT5640_MONO_SPEAKER |
579 					BYT_RT5640_MCLK_EN),
580 	},
581 	{	/* Linx Linx7 tablet */
582 		.matches = {
583 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LINX"),
584 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LINX7"),
585 		},
586 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
587 					BYT_RT5640_MONO_SPEAKER |
588 					BYT_RT5640_JD_NOT_INV |
589 					BYT_RT5640_SSP0_AIF1 |
590 					BYT_RT5640_MCLK_EN),
591 	},
592 	{	/* MSI S100 tablet */
593 		.matches = {
594 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Micro-Star International Co., Ltd."),
595 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "S100"),
596 		},
597 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
598 					BYT_RT5640_JD_SRC_JD2_IN4N |
599 					BYT_RT5640_OVCD_TH_2000UA |
600 					BYT_RT5640_OVCD_SF_0P75 |
601 					BYT_RT5640_MONO_SPEAKER |
602 					BYT_RT5640_DIFF_MIC |
603 					BYT_RT5640_MCLK_EN),
604 	},
605 	{	/* Nuvison/TMax TM800W560 */
606 		.matches = {
607 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TMAX"),
608 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TM800W560L"),
609 		},
610 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
611 					BYT_RT5640_JD_SRC_JD2_IN4N |
612 					BYT_RT5640_OVCD_TH_2000UA |
613 					BYT_RT5640_OVCD_SF_0P75 |
614 					BYT_RT5640_JD_NOT_INV |
615 					BYT_RT5640_DIFF_MIC |
616 					BYT_RT5640_SSP0_AIF1 |
617 					BYT_RT5640_MCLK_EN),
618 	},
619 	{	/* Onda v975w */
620 		.matches = {
621 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
622 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
623 			/* The above are too generic, also match BIOS info */
624 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "5.6.5"),
625 			DMI_EXACT_MATCH(DMI_BIOS_DATE, "07/25/2014"),
626 		},
627 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
628 					BYT_RT5640_JD_SRC_JD2_IN4N |
629 					BYT_RT5640_OVCD_TH_2000UA |
630 					BYT_RT5640_OVCD_SF_0P75 |
631 					BYT_RT5640_DIFF_MIC |
632 					BYT_RT5640_MCLK_EN),
633 	},
634 	{	/* Pipo W4 */
635 		.matches = {
636 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
637 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
638 			/* The above are too generic, also match BIOS info */
639 			DMI_MATCH(DMI_BIOS_VERSION, "V8L_WIN32_CHIPHD"),
640 		},
641 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
642 					BYT_RT5640_MONO_SPEAKER |
643 					BYT_RT5640_SSP0_AIF1 |
644 					BYT_RT5640_MCLK_EN),
645 	},
646 	{	/* Point of View Mobii TAB-P800W (V2.0) */
647 		.matches = {
648 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
649 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
650 			/* The above are too generic, also match BIOS info */
651 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "3BAIR1014"),
652 			DMI_EXACT_MATCH(DMI_BIOS_DATE, "10/24/2014"),
653 		},
654 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
655 					BYT_RT5640_JD_SRC_JD2_IN4N |
656 					BYT_RT5640_OVCD_TH_2000UA |
657 					BYT_RT5640_OVCD_SF_0P75 |
658 					BYT_RT5640_MONO_SPEAKER |
659 					BYT_RT5640_DIFF_MIC |
660 					BYT_RT5640_SSP0_AIF2 |
661 					BYT_RT5640_MCLK_EN),
662 	},
663 	{	/* Point of View Mobii TAB-P800W (V2.1) */
664 		.matches = {
665 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
666 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
667 			/* The above are too generic, also match BIOS info */
668 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "3BAIR1013"),
669 			DMI_EXACT_MATCH(DMI_BIOS_DATE, "08/22/2014"),
670 		},
671 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
672 					BYT_RT5640_JD_SRC_JD2_IN4N |
673 					BYT_RT5640_OVCD_TH_2000UA |
674 					BYT_RT5640_OVCD_SF_0P75 |
675 					BYT_RT5640_MONO_SPEAKER |
676 					BYT_RT5640_DIFF_MIC |
677 					BYT_RT5640_SSP0_AIF2 |
678 					BYT_RT5640_MCLK_EN),
679 	},
680 	{	/* Point of View Mobii TAB-P1005W-232 (V2.0) */
681 		.matches = {
682 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "POV"),
683 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "I102A"),
684 		},
685 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
686 					BYT_RT5640_JD_SRC_JD2_IN4N |
687 					BYT_RT5640_OVCD_TH_2000UA |
688 					BYT_RT5640_OVCD_SF_0P75 |
689 					BYT_RT5640_DIFF_MIC |
690 					BYT_RT5640_SSP0_AIF1 |
691 					BYT_RT5640_MCLK_EN),
692 	},
693 	{
694 		/* Prowise PT301 */
695 		.matches = {
696 			DMI_MATCH(DMI_SYS_VENDOR, "Prowise"),
697 			DMI_MATCH(DMI_PRODUCT_NAME, "PT301"),
698 		},
699 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
700 					BYT_RT5640_JD_SRC_JD2_IN4N |
701 					BYT_RT5640_OVCD_TH_2000UA |
702 					BYT_RT5640_OVCD_SF_0P75 |
703 					BYT_RT5640_DIFF_MIC |
704 					BYT_RT5640_SSP0_AIF1 |
705 					BYT_RT5640_MCLK_EN),
706 	},
707 	{
708 		.matches = {
709 			DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
710 			DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
711 		},
712 		.driver_data = (void *)(BYT_RT5640_IN3_MAP |
713 					BYT_RT5640_MCLK_EN |
714 					BYT_RT5640_SSP0_AIF1),
715 	},
716 	{	/* Toshiba Satellite Click Mini L9W-B */
717 		.matches = {
718 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
719 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SATELLITE Click Mini L9W-B"),
720 		},
721 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
722 					BYT_RT5640_JD_SRC_JD2_IN4N |
723 					BYT_RT5640_OVCD_TH_1500UA |
724 					BYT_RT5640_OVCD_SF_0P75 |
725 					BYT_RT5640_SSP0_AIF1 |
726 					BYT_RT5640_MCLK_EN),
727 	},
728 	{	/* Catch-all for generic Insyde tablets, must be last */
729 		.matches = {
730 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
731 		},
732 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
733 					BYT_RT5640_MCLK_EN |
734 					BYT_RT5640_SSP0_AIF1),
735 
736 	},
737 	{}
738 };
739 
740 /*
741  * Note this MUST be called before snd_soc_register_card(), so that the props
742  * are in place before the codec component driver's probe function parses them.
743  */
744 static int byt_rt5640_add_codec_device_props(const char *i2c_dev_name)
745 {
746 	struct property_entry props[MAX_NO_PROPS] = {};
747 	struct device *i2c_dev;
748 	int ret, cnt = 0;
749 
750 	i2c_dev = bus_find_device_by_name(&i2c_bus_type, NULL, i2c_dev_name);
751 	if (!i2c_dev)
752 		return -EPROBE_DEFER;
753 
754 	switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
755 	case BYT_RT5640_DMIC1_MAP:
756 		props[cnt++] = PROPERTY_ENTRY_U32("realtek,dmic1-data-pin",
757 						  RT5640_DMIC1_DATA_PIN_IN1P);
758 		break;
759 	case BYT_RT5640_DMIC2_MAP:
760 		props[cnt++] = PROPERTY_ENTRY_U32("realtek,dmic2-data-pin",
761 						  RT5640_DMIC2_DATA_PIN_IN1N);
762 		break;
763 	case BYT_RT5640_IN1_MAP:
764 		if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
765 			props[cnt++] =
766 				PROPERTY_ENTRY_BOOL("realtek,in1-differential");
767 		break;
768 	case BYT_RT5640_IN3_MAP:
769 		if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
770 			props[cnt++] =
771 				PROPERTY_ENTRY_BOOL("realtek,in3-differential");
772 		break;
773 	}
774 
775 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
776 		props[cnt++] = PROPERTY_ENTRY_U32(
777 				    "realtek,jack-detect-source",
778 				    BYT_RT5640_JDSRC(byt_rt5640_quirk));
779 
780 		props[cnt++] = PROPERTY_ENTRY_U32(
781 				    "realtek,over-current-threshold-microamp",
782 				    BYT_RT5640_OVCD_TH(byt_rt5640_quirk) * 100);
783 
784 		props[cnt++] = PROPERTY_ENTRY_U32(
785 				    "realtek,over-current-scale-factor",
786 				    BYT_RT5640_OVCD_SF(byt_rt5640_quirk));
787 	}
788 
789 	if (byt_rt5640_quirk & BYT_RT5640_JD_NOT_INV)
790 		props[cnt++] = PROPERTY_ENTRY_BOOL("realtek,jack-detect-not-inverted");
791 
792 	ret = device_add_properties(i2c_dev, props);
793 	put_device(i2c_dev);
794 
795 	return ret;
796 }
797 
798 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
799 {
800 	struct snd_soc_card *card = runtime->card;
801 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
802 	struct snd_soc_component *component = runtime->codec_dai->component;
803 	const struct snd_soc_dapm_route *custom_map;
804 	int num_routes;
805 	int ret;
806 
807 	card->dapm.idle_bias_off = true;
808 
809 	/* Start with RC clk for jack-detect (we disable MCLK below) */
810 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
811 		snd_soc_component_update_bits(component, RT5640_GLB_CLK,
812 			RT5640_SCLK_SRC_MASK, RT5640_SCLK_SRC_RCCLK);
813 
814 	rt5640_sel_asrc_clk_src(component,
815 				RT5640_DA_STEREO_FILTER |
816 				RT5640_DA_MONO_L_FILTER	|
817 				RT5640_DA_MONO_R_FILTER	|
818 				RT5640_AD_STEREO_FILTER	|
819 				RT5640_AD_MONO_L_FILTER	|
820 				RT5640_AD_MONO_R_FILTER,
821 				RT5640_CLK_SEL_ASRC);
822 
823 	ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
824 					ARRAY_SIZE(byt_rt5640_controls));
825 	if (ret) {
826 		dev_err(card->dev, "unable to add card controls\n");
827 		return ret;
828 	}
829 
830 	switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
831 	case BYT_RT5640_IN1_MAP:
832 		custom_map = byt_rt5640_intmic_in1_map;
833 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
834 		break;
835 	case BYT_RT5640_IN3_MAP:
836 		custom_map = byt_rt5640_intmic_in3_map;
837 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
838 		break;
839 	case BYT_RT5640_DMIC2_MAP:
840 		custom_map = byt_rt5640_intmic_dmic2_map;
841 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
842 		break;
843 	default:
844 		custom_map = byt_rt5640_intmic_dmic1_map;
845 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
846 	}
847 
848 	ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
849 	if (ret)
850 		return ret;
851 
852 	if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
853 		ret = snd_soc_dapm_add_routes(&card->dapm,
854 					byt_rt5640_ssp2_aif2_map,
855 					ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
856 	} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
857 		ret = snd_soc_dapm_add_routes(&card->dapm,
858 					byt_rt5640_ssp0_aif1_map,
859 					ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
860 	} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
861 		ret = snd_soc_dapm_add_routes(&card->dapm,
862 					byt_rt5640_ssp0_aif2_map,
863 					ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
864 	} else {
865 		ret = snd_soc_dapm_add_routes(&card->dapm,
866 					byt_rt5640_ssp2_aif1_map,
867 					ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
868 	}
869 	if (ret)
870 		return ret;
871 
872 	if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
873 		ret = snd_soc_dapm_add_routes(&card->dapm,
874 					byt_rt5640_mono_spk_map,
875 					ARRAY_SIZE(byt_rt5640_mono_spk_map));
876 	} else {
877 		ret = snd_soc_dapm_add_routes(&card->dapm,
878 					byt_rt5640_stereo_spk_map,
879 					ARRAY_SIZE(byt_rt5640_stereo_spk_map));
880 	}
881 	if (ret)
882 		return ret;
883 
884 	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
885 	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
886 
887 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
888 		/*
889 		 * The firmware might enable the clock at
890 		 * boot (this information may or may not
891 		 * be reflected in the enable clock register).
892 		 * To change the rate we must disable the clock
893 		 * first to cover these cases. Due to common
894 		 * clock framework restrictions that do not allow
895 		 * to disable a clock that has not been enabled,
896 		 * we need to enable the clock first.
897 		 */
898 		ret = clk_prepare_enable(priv->mclk);
899 		if (!ret)
900 			clk_disable_unprepare(priv->mclk);
901 
902 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
903 			ret = clk_set_rate(priv->mclk, 25000000);
904 		else
905 			ret = clk_set_rate(priv->mclk, 19200000);
906 
907 		if (ret) {
908 			dev_err(card->dev, "unable to set MCLK rate\n");
909 			return ret;
910 		}
911 	}
912 
913 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
914 		ret = snd_soc_card_jack_new(card, "Headset",
915 					    SND_JACK_HEADSET | SND_JACK_BTN_0,
916 					    &priv->jack, rt5640_pins,
917 					    ARRAY_SIZE(rt5640_pins));
918 		if (ret) {
919 			dev_err(card->dev, "Jack creation failed %d\n", ret);
920 			return ret;
921 		}
922 		snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0,
923 				 KEY_PLAYPAUSE);
924 		snd_soc_component_set_jack(component, &priv->jack, NULL);
925 	}
926 
927 	return 0;
928 }
929 
930 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
931 	.formats = SNDRV_PCM_FMTBIT_S24_LE,
932 	.rate_min = 48000,
933 	.rate_max = 48000,
934 	.channels_min = 2,
935 	.channels_max = 2,
936 };
937 
938 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
939 			    struct snd_pcm_hw_params *params)
940 {
941 	struct snd_interval *rate = hw_param_interval(params,
942 			SNDRV_PCM_HW_PARAM_RATE);
943 	struct snd_interval *channels = hw_param_interval(params,
944 						SNDRV_PCM_HW_PARAM_CHANNELS);
945 	int ret;
946 
947 	/* The DSP will covert the FE rate to 48k, stereo */
948 	rate->min = rate->max = 48000;
949 	channels->min = channels->max = 2;
950 
951 	if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
952 		(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
953 
954 		/* set SSP0 to 16-bit */
955 		params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
956 
957 		/*
958 		 * Default mode for SSP configuration is TDM 4 slot, override config
959 		 * with explicit setting to I2S 2ch 16-bit. The word length is set with
960 		 * dai_set_tdm_slot() since there is no other API exposed
961 		 */
962 		ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
963 					SND_SOC_DAIFMT_I2S     |
964 					SND_SOC_DAIFMT_NB_NF   |
965 					SND_SOC_DAIFMT_CBS_CFS
966 			);
967 		if (ret < 0) {
968 			dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
969 			return ret;
970 		}
971 
972 		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
973 		if (ret < 0) {
974 			dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
975 			return ret;
976 		}
977 
978 	} else {
979 
980 		/* set SSP2 to 24-bit */
981 		params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
982 
983 		/*
984 		 * Default mode for SSP configuration is TDM 4 slot, override config
985 		 * with explicit setting to I2S 2ch 24-bit. The word length is set with
986 		 * dai_set_tdm_slot() since there is no other API exposed
987 		 */
988 		ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
989 					SND_SOC_DAIFMT_I2S     |
990 					SND_SOC_DAIFMT_NB_NF   |
991 					SND_SOC_DAIFMT_CBS_CFS
992 			);
993 		if (ret < 0) {
994 			dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
995 			return ret;
996 		}
997 
998 		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
999 		if (ret < 0) {
1000 			dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
1001 			return ret;
1002 		}
1003 	}
1004 	return 0;
1005 }
1006 
1007 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
1008 {
1009 	return snd_pcm_hw_constraint_single(substream->runtime,
1010 			SNDRV_PCM_HW_PARAM_RATE, 48000);
1011 }
1012 
1013 static const struct snd_soc_ops byt_rt5640_aif1_ops = {
1014 	.startup = byt_rt5640_aif1_startup,
1015 };
1016 
1017 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
1018 	.hw_params = byt_rt5640_aif1_hw_params,
1019 };
1020 
1021 static struct snd_soc_dai_link byt_rt5640_dais[] = {
1022 	[MERR_DPCM_AUDIO] = {
1023 		.name = "Baytrail Audio Port",
1024 		.stream_name = "Baytrail Audio",
1025 		.cpu_dai_name = "media-cpu-dai",
1026 		.codec_dai_name = "snd-soc-dummy-dai",
1027 		.codec_name = "snd-soc-dummy",
1028 		.platform_name = "sst-mfld-platform",
1029 		.nonatomic = true,
1030 		.dynamic = 1,
1031 		.dpcm_playback = 1,
1032 		.dpcm_capture = 1,
1033 		.ops = &byt_rt5640_aif1_ops,
1034 	},
1035 	[MERR_DPCM_DEEP_BUFFER] = {
1036 		.name = "Deep-Buffer Audio Port",
1037 		.stream_name = "Deep-Buffer Audio",
1038 		.cpu_dai_name = "deepbuffer-cpu-dai",
1039 		.codec_dai_name = "snd-soc-dummy-dai",
1040 		.codec_name = "snd-soc-dummy",
1041 		.platform_name = "sst-mfld-platform",
1042 		.nonatomic = true,
1043 		.dynamic = 1,
1044 		.dpcm_playback = 1,
1045 		.ops = &byt_rt5640_aif1_ops,
1046 	},
1047 		/* back ends */
1048 	{
1049 		.name = "SSP2-Codec",
1050 		.id = 0,
1051 		.cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
1052 		.platform_name = "sst-mfld-platform",
1053 		.no_pcm = 1,
1054 		.codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
1055 		.codec_name = "i2c-10EC5640:00", /* overwritten with HID */
1056 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
1057 						| SND_SOC_DAIFMT_CBS_CFS,
1058 		.be_hw_params_fixup = byt_rt5640_codec_fixup,
1059 		.ignore_suspend = 1,
1060 		.nonatomic = true,
1061 		.dpcm_playback = 1,
1062 		.dpcm_capture = 1,
1063 		.init = byt_rt5640_init,
1064 		.ops = &byt_rt5640_be_ssp2_ops,
1065 	},
1066 };
1067 
1068 /* SoC card */
1069 static char byt_rt5640_codec_name[SND_ACPI_I2C_ID_LEN];
1070 static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
1071 static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
1072 static char byt_rt5640_long_name[40]; /* = "bytcr-rt5640-*-spk-*-mic" */
1073 
1074 static int byt_rt5640_suspend(struct snd_soc_card *card)
1075 {
1076 	struct snd_soc_component *component;
1077 
1078 	if (!BYT_RT5640_JDSRC(byt_rt5640_quirk))
1079 		return 0;
1080 
1081 	for_each_card_components(card, component) {
1082 		if (!strcmp(component->name, byt_rt5640_codec_name)) {
1083 			dev_dbg(component->dev, "disabling jack detect before suspend\n");
1084 			snd_soc_component_set_jack(component, NULL, NULL);
1085 			break;
1086 		}
1087 	}
1088 
1089 	return 0;
1090 }
1091 
1092 static int byt_rt5640_resume(struct snd_soc_card *card)
1093 {
1094 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
1095 	struct snd_soc_component *component;
1096 
1097 	if (!BYT_RT5640_JDSRC(byt_rt5640_quirk))
1098 		return 0;
1099 
1100 	for_each_card_components(card, component) {
1101 		if (!strcmp(component->name, byt_rt5640_codec_name)) {
1102 			dev_dbg(component->dev, "re-enabling jack detect after resume\n");
1103 			snd_soc_component_set_jack(component, &priv->jack, NULL);
1104 			break;
1105 		}
1106 	}
1107 
1108 	return 0;
1109 }
1110 
1111 static struct snd_soc_card byt_rt5640_card = {
1112 	.name = "bytcr-rt5640",
1113 	.owner = THIS_MODULE,
1114 	.dai_link = byt_rt5640_dais,
1115 	.num_links = ARRAY_SIZE(byt_rt5640_dais),
1116 	.dapm_widgets = byt_rt5640_widgets,
1117 	.num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
1118 	.dapm_routes = byt_rt5640_audio_map,
1119 	.num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
1120 	.fully_routed = true,
1121 	.suspend_pre = byt_rt5640_suspend,
1122 	.resume_post = byt_rt5640_resume,
1123 };
1124 
1125 static bool is_valleyview(void)
1126 {
1127 	static const struct x86_cpu_id cpu_ids[] = {
1128 		{ X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
1129 		{}
1130 	};
1131 
1132 	if (!x86_match_cpu(cpu_ids))
1133 		return false;
1134 	return true;
1135 }
1136 
1137 struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
1138 	u64 aif_value;       /* 1: AIF1, 2: AIF2 */
1139 	u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
1140 };
1141 
1142 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
1143 {
1144 	static const char * const map_name[] = { "dmic1", "dmic2", "in1", "in3" };
1145 	const struct dmi_system_id *dmi_id;
1146 	struct byt_rt5640_private *priv;
1147 	struct snd_soc_acpi_mach *mach;
1148 	const char *platform_name;
1149 	struct acpi_device *adev;
1150 	int ret_val = 0;
1151 	int dai_index = 0;
1152 	int i;
1153 
1154 	is_bytcr = false;
1155 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
1156 	if (!priv)
1157 		return -ENOMEM;
1158 
1159 	/* register the soc card */
1160 	byt_rt5640_card.dev = &pdev->dev;
1161 	mach = byt_rt5640_card.dev->platform_data;
1162 	snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
1163 
1164 	/* fix index of codec dai */
1165 	for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
1166 		if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
1167 			dai_index = i;
1168 			break;
1169 		}
1170 	}
1171 
1172 	/* fixup codec name based on HID */
1173 	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
1174 	if (adev) {
1175 		snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
1176 			 "i2c-%s", acpi_dev_name(adev));
1177 		put_device(&adev->dev);
1178 		byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
1179 	}
1180 
1181 	/*
1182 	 * swap SSP0 if bytcr is detected
1183 	 * (will be overridden if DMI quirk is detected)
1184 	 */
1185 	if (is_valleyview()) {
1186 		if (mach->mach_params.acpi_ipc_irq_index == 0)
1187 			is_bytcr = true;
1188 	}
1189 
1190 	if (is_bytcr) {
1191 		/*
1192 		 * Baytrail CR platforms may have CHAN package in BIOS, try
1193 		 * to find relevant routing quirk based as done on Windows
1194 		 * platforms. We have to read the information directly from the
1195 		 * BIOS, at this stage the card is not created and the links
1196 		 * with the codec driver/pdata are non-existent
1197 		 */
1198 
1199 		struct acpi_chan_package chan_package;
1200 
1201 		/* format specified: 2 64-bit integers */
1202 		struct acpi_buffer format = {sizeof("NN"), "NN"};
1203 		struct acpi_buffer state = {0, NULL};
1204 		struct snd_soc_acpi_package_context pkg_ctx;
1205 		bool pkg_found = false;
1206 
1207 		state.length = sizeof(chan_package);
1208 		state.pointer = &chan_package;
1209 
1210 		pkg_ctx.name = "CHAN";
1211 		pkg_ctx.length = 2;
1212 		pkg_ctx.format = &format;
1213 		pkg_ctx.state = &state;
1214 		pkg_ctx.data_valid = false;
1215 
1216 		pkg_found = snd_soc_acpi_find_package_from_hid(mach->id,
1217 							       &pkg_ctx);
1218 		if (pkg_found) {
1219 			if (chan_package.aif_value == 1) {
1220 				dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
1221 				byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
1222 			} else  if (chan_package.aif_value == 2) {
1223 				dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
1224 				byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
1225 			} else {
1226 				dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
1227 				pkg_found = false;
1228 			}
1229 		}
1230 
1231 		if (!pkg_found) {
1232 			/* no BIOS indications, assume SSP0-AIF2 connection */
1233 			byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
1234 		}
1235 
1236 		/* change defaults for Baytrail-CR capture */
1237 		byt_rt5640_quirk |= BYTCR_INPUT_DEFAULTS;
1238 	} else {
1239 		byt_rt5640_quirk |= BYT_RT5640_DMIC1_MAP |
1240 				    BYT_RT5640_JD_SRC_JD2_IN4N |
1241 				    BYT_RT5640_OVCD_TH_2000UA |
1242 				    BYT_RT5640_OVCD_SF_0P75;
1243 	}
1244 
1245 	/* check quirks before creating card */
1246 	dmi_id = dmi_first_match(byt_rt5640_quirk_table);
1247 	if (dmi_id)
1248 		byt_rt5640_quirk = (unsigned long)dmi_id->driver_data;
1249 	if (quirk_override != -1) {
1250 		dev_info(&pdev->dev, "Overriding quirk 0x%x => 0x%x\n",
1251 			 (unsigned int)byt_rt5640_quirk, quirk_override);
1252 		byt_rt5640_quirk = quirk_override;
1253 	}
1254 
1255 	/* Must be called before register_card, also see declaration comment. */
1256 	ret_val = byt_rt5640_add_codec_device_props(byt_rt5640_codec_name);
1257 	if (ret_val)
1258 		return ret_val;
1259 
1260 	log_quirks(&pdev->dev);
1261 
1262 	if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
1263 	    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
1264 
1265 		/* fixup codec aif name */
1266 		snprintf(byt_rt5640_codec_aif_name,
1267 			sizeof(byt_rt5640_codec_aif_name),
1268 			"%s", "rt5640-aif2");
1269 
1270 		byt_rt5640_dais[dai_index].codec_dai_name =
1271 			byt_rt5640_codec_aif_name;
1272 	}
1273 
1274 	if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
1275 	    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
1276 
1277 		/* fixup cpu dai name name */
1278 		snprintf(byt_rt5640_cpu_dai_name,
1279 			sizeof(byt_rt5640_cpu_dai_name),
1280 			"%s", "ssp0-port");
1281 
1282 		byt_rt5640_dais[dai_index].cpu_dai_name =
1283 			byt_rt5640_cpu_dai_name;
1284 	}
1285 
1286 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
1287 		priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
1288 		if (IS_ERR(priv->mclk)) {
1289 			ret_val = PTR_ERR(priv->mclk);
1290 
1291 			dev_err(&pdev->dev,
1292 				"Failed to get MCLK from pmc_plt_clk_3: %d\n",
1293 				ret_val);
1294 
1295 			/*
1296 			 * Fall back to bit clock usage for -ENOENT (clock not
1297 			 * available likely due to missing dependencies), bail
1298 			 * for all other errors, including -EPROBE_DEFER
1299 			 */
1300 			if (ret_val != -ENOENT)
1301 				return ret_val;
1302 			byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
1303 		}
1304 	}
1305 
1306 	snprintf(byt_rt5640_long_name, sizeof(byt_rt5640_long_name),
1307 		 "bytcr-rt5640-%s-spk-%s-mic",
1308 		 (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) ?
1309 			"mono" : "stereo",
1310 		 map_name[BYT_RT5640_MAP(byt_rt5640_quirk)]);
1311 	byt_rt5640_card.long_name = byt_rt5640_long_name;
1312 
1313 	/* override plaform name, if required */
1314 	platform_name = mach->mach_params.platform;
1315 
1316 	ret_val = snd_soc_fixup_dai_links_platform_name(&byt_rt5640_card,
1317 							platform_name);
1318 	if (ret_val)
1319 		return ret_val;
1320 
1321 	ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
1322 
1323 	if (ret_val) {
1324 		dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
1325 			ret_val);
1326 		return ret_val;
1327 	}
1328 	platform_set_drvdata(pdev, &byt_rt5640_card);
1329 	return ret_val;
1330 }
1331 
1332 static struct platform_driver snd_byt_rt5640_mc_driver = {
1333 	.driver = {
1334 		.name = "bytcr_rt5640",
1335 	},
1336 	.probe = snd_byt_rt5640_mc_probe,
1337 };
1338 
1339 module_platform_driver(snd_byt_rt5640_mc_driver);
1340 
1341 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
1342 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
1343 MODULE_LICENSE("GPL v2");
1344 MODULE_ALIAS("platform:bytcr_rt5640");
1345