1 /*
2  *  byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
3  *
4  *  Copyright (C) 2014 Intel Corp
5  *  Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
6  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU General Public License as published by
10  *  the Free Software Foundation; version 2 of the License.
11  *
12  *  This program is distributed in the hope that it will be useful, but
13  *  WITHOUT ANY WARRANTY; without even the implied warranty of
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  *  General Public License for more details.
16  *
17  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
18  */
19 
20 #include <linux/i2c.h>
21 #include <linux/init.h>
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/platform_device.h>
25 #include <linux/acpi.h>
26 #include <linux/clk.h>
27 #include <linux/device.h>
28 #include <linux/dmi.h>
29 #include <linux/input.h>
30 #include <linux/slab.h>
31 #include <asm/cpu_device_id.h>
32 #include <asm/platform_sst_audio.h>
33 #include <sound/pcm.h>
34 #include <sound/pcm_params.h>
35 #include <sound/soc.h>
36 #include <sound/jack.h>
37 #include <sound/soc-acpi.h>
38 #include <dt-bindings/sound/rt5640.h>
39 #include "../../codecs/rt5640.h"
40 #include "../atom/sst-atom-controls.h"
41 #include "../common/sst-dsp.h"
42 
43 enum {
44 	BYT_RT5640_DMIC1_MAP,
45 	BYT_RT5640_DMIC2_MAP,
46 	BYT_RT5640_IN1_MAP,
47 	BYT_RT5640_IN3_MAP,
48 };
49 
50 enum {
51 	BYT_RT5640_JD_SRC_GPIO1		= (RT5640_JD_SRC_GPIO1 << 4),
52 	BYT_RT5640_JD_SRC_JD1_IN4P	= (RT5640_JD_SRC_JD1_IN4P << 4),
53 	BYT_RT5640_JD_SRC_JD2_IN4N	= (RT5640_JD_SRC_JD2_IN4N << 4),
54 	BYT_RT5640_JD_SRC_GPIO2		= (RT5640_JD_SRC_GPIO2 << 4),
55 	BYT_RT5640_JD_SRC_GPIO3		= (RT5640_JD_SRC_GPIO3 << 4),
56 	BYT_RT5640_JD_SRC_GPIO4		= (RT5640_JD_SRC_GPIO4 << 4),
57 };
58 
59 enum {
60 	BYT_RT5640_OVCD_TH_600UA	= (6 << 8),
61 	BYT_RT5640_OVCD_TH_1500UA	= (15 << 8),
62 	BYT_RT5640_OVCD_TH_2000UA	= (20 << 8),
63 };
64 
65 enum {
66 	BYT_RT5640_OVCD_SF_0P5		= (RT5640_OVCD_SF_0P5 << 13),
67 	BYT_RT5640_OVCD_SF_0P75		= (RT5640_OVCD_SF_0P75 << 13),
68 	BYT_RT5640_OVCD_SF_1P0		= (RT5640_OVCD_SF_1P0 << 13),
69 	BYT_RT5640_OVCD_SF_1P5		= (RT5640_OVCD_SF_1P5 << 13),
70 };
71 
72 #define BYT_RT5640_MAP(quirk)		((quirk) &  GENMASK(3, 0))
73 #define BYT_RT5640_JDSRC(quirk)		(((quirk) & GENMASK(7, 4)) >> 4)
74 #define BYT_RT5640_OVCD_TH(quirk)	(((quirk) & GENMASK(12, 8)) >> 8)
75 #define BYT_RT5640_OVCD_SF(quirk)	(((quirk) & GENMASK(14, 13)) >> 13)
76 #define BYT_RT5640_JD_NOT_INV		BIT(16)
77 #define BYT_RT5640_MONO_SPEAKER		BIT(17)
78 #define BYT_RT5640_DIFF_MIC		BIT(18) /* default is single-ended */
79 #define BYT_RT5640_SSP2_AIF2		BIT(19) /* default is using AIF1  */
80 #define BYT_RT5640_SSP0_AIF1		BIT(20)
81 #define BYT_RT5640_SSP0_AIF2		BIT(21)
82 #define BYT_RT5640_MCLK_EN		BIT(22)
83 #define BYT_RT5640_MCLK_25MHZ		BIT(23)
84 
85 #define BYTCR_INPUT_DEFAULTS				\
86 	(BYT_RT5640_IN3_MAP |				\
87 	 BYT_RT5640_JD_SRC_JD1_IN4P |			\
88 	 BYT_RT5640_OVCD_TH_2000UA |			\
89 	 BYT_RT5640_OVCD_SF_0P75 |			\
90 	 BYT_RT5640_DIFF_MIC)
91 
92 /* in-diff or dmic-pin + jdsrc + ovcd-th + -sf + jd-inv + terminating entry */
93 #define MAX_NO_PROPS 6
94 
95 struct byt_rt5640_private {
96 	struct snd_soc_jack jack;
97 	struct clk *mclk;
98 };
99 static bool is_bytcr;
100 
101 static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
102 static unsigned int quirk_override;
103 module_param_named(quirk, quirk_override, uint, 0444);
104 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
105 
106 static void log_quirks(struct device *dev)
107 {
108 	int map;
109 	bool has_mclk = false;
110 	bool has_ssp0 = false;
111 	bool has_ssp0_aif1 = false;
112 	bool has_ssp0_aif2 = false;
113 	bool has_ssp2_aif2 = false;
114 
115 	map = BYT_RT5640_MAP(byt_rt5640_quirk);
116 	switch (map) {
117 	case BYT_RT5640_DMIC1_MAP:
118 		dev_info(dev, "quirk DMIC1_MAP enabled\n");
119 		break;
120 	case BYT_RT5640_DMIC2_MAP:
121 		dev_info(dev, "quirk DMIC2_MAP enabled\n");
122 		break;
123 	case BYT_RT5640_IN1_MAP:
124 		dev_info(dev, "quirk IN1_MAP enabled\n");
125 		break;
126 	case BYT_RT5640_IN3_MAP:
127 		dev_info(dev, "quirk IN3_MAP enabled\n");
128 		break;
129 	default:
130 		dev_err(dev, "quirk map 0x%x is not supported, microphone input will not work\n", map);
131 		break;
132 	}
133 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
134 		dev_info(dev, "quirk realtek,jack-detect-source %ld\n",
135 			 BYT_RT5640_JDSRC(byt_rt5640_quirk));
136 		dev_info(dev, "quirk realtek,over-current-threshold-microamp %ld\n",
137 			 BYT_RT5640_OVCD_TH(byt_rt5640_quirk) * 100);
138 		dev_info(dev, "quirk realtek,over-current-scale-factor %ld\n",
139 			 BYT_RT5640_OVCD_SF(byt_rt5640_quirk));
140 	}
141 	if (byt_rt5640_quirk & BYT_RT5640_JD_NOT_INV)
142 		dev_info(dev, "quirk JD_NOT_INV enabled\n");
143 	if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
144 		dev_info(dev, "quirk MONO_SPEAKER enabled\n");
145 	if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
146 		dev_info(dev, "quirk DIFF_MIC enabled\n");
147 	if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
148 		dev_info(dev, "quirk SSP0_AIF1 enabled\n");
149 		has_ssp0 = true;
150 		has_ssp0_aif1 = true;
151 	}
152 	if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
153 		dev_info(dev, "quirk SSP0_AIF2 enabled\n");
154 		has_ssp0 = true;
155 		has_ssp0_aif2 = true;
156 	}
157 	if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
158 		dev_info(dev, "quirk SSP2_AIF2 enabled\n");
159 		has_ssp2_aif2 = true;
160 	}
161 	if (is_bytcr && !has_ssp0)
162 		dev_err(dev, "Invalid routing, bytcr detected but no SSP0-based quirk, audio cannot work with SSP2 on bytcr\n");
163 	if (has_ssp0_aif1 && has_ssp0_aif2)
164 		dev_err(dev, "Invalid routing, SSP0 cannot be connected to both AIF1 and AIF2\n");
165 	if (has_ssp0 && has_ssp2_aif2)
166 		dev_err(dev, "Invalid routing, cannot have both SSP0 and SSP2 connected to codec\n");
167 
168 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
169 		dev_info(dev, "quirk MCLK_EN enabled\n");
170 		has_mclk = true;
171 	}
172 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
173 		if (has_mclk)
174 			dev_info(dev, "quirk MCLK_25MHZ enabled\n");
175 		else
176 			dev_err(dev, "quirk MCLK_25MHZ enabled but quirk MCLK not selected, will be ignored\n");
177 	}
178 }
179 
180 static int byt_rt5640_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai,
181 					      int rate)
182 {
183 	int ret;
184 
185 	/* Configure the PLL before selecting it */
186 	if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
187 		/* use bitclock as PLL input */
188 		if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
189 		    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
190 			/* 2x16 bit slots on SSP0 */
191 			ret = snd_soc_dai_set_pll(codec_dai, 0,
192 						  RT5640_PLL1_S_BCLK1,
193 						  rate * 32, rate * 512);
194 		} else {
195 			/* 2x15 bit slots on SSP2 */
196 			ret = snd_soc_dai_set_pll(codec_dai, 0,
197 						  RT5640_PLL1_S_BCLK1,
198 						  rate * 50, rate * 512);
199 		}
200 	} else {
201 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
202 			ret = snd_soc_dai_set_pll(codec_dai, 0,
203 						  RT5640_PLL1_S_MCLK,
204 						  25000000, rate * 512);
205 		} else {
206 			ret = snd_soc_dai_set_pll(codec_dai, 0,
207 						  RT5640_PLL1_S_MCLK,
208 						  19200000, rate * 512);
209 		}
210 	}
211 
212 	if (ret < 0) {
213 		dev_err(codec_dai->component->dev, "can't set pll: %d\n", ret);
214 		return ret;
215 	}
216 
217 	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
218 				     rate * 512, SND_SOC_CLOCK_IN);
219 	if (ret < 0) {
220 		dev_err(codec_dai->component->dev, "can't set clock %d\n", ret);
221 		return ret;
222 	}
223 
224 	return 0;
225 }
226 
227 #define BYT_CODEC_DAI1	"rt5640-aif1"
228 #define BYT_CODEC_DAI2	"rt5640-aif2"
229 
230 static int platform_clock_control(struct snd_soc_dapm_widget *w,
231 				  struct snd_kcontrol *k, int  event)
232 {
233 	struct snd_soc_dapm_context *dapm = w->dapm;
234 	struct snd_soc_card *card = dapm->card;
235 	struct snd_soc_dai *codec_dai;
236 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
237 	int ret;
238 
239 	codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI1);
240 	if (!codec_dai)
241 		codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI2);
242 
243 	if (!codec_dai) {
244 		dev_err(card->dev,
245 			"Codec dai not found; Unable to set platform clock\n");
246 		return -EIO;
247 	}
248 
249 	if (SND_SOC_DAPM_EVENT_ON(event)) {
250 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
251 			ret = clk_prepare_enable(priv->mclk);
252 			if (ret < 0) {
253 				dev_err(card->dev,
254 					"could not configure MCLK state\n");
255 				return ret;
256 			}
257 		}
258 		ret = byt_rt5640_prepare_and_enable_pll1(codec_dai, 48000);
259 	} else {
260 		/*
261 		 * Set codec clock source to internal clock before
262 		 * turning off the platform clock. Codec needs clock
263 		 * for Jack detection and button press
264 		 */
265 		ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
266 					     48000 * 512,
267 					     SND_SOC_CLOCK_IN);
268 		if (!ret) {
269 			if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
270 				clk_disable_unprepare(priv->mclk);
271 		}
272 	}
273 
274 	if (ret < 0) {
275 		dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
276 		return ret;
277 	}
278 
279 	return 0;
280 }
281 
282 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
283 	SND_SOC_DAPM_HP("Headphone", NULL),
284 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
285 	SND_SOC_DAPM_MIC("Internal Mic", NULL),
286 	SND_SOC_DAPM_SPK("Speaker", NULL),
287 	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
288 			    platform_clock_control, SND_SOC_DAPM_PRE_PMU |
289 			    SND_SOC_DAPM_POST_PMD),
290 
291 };
292 
293 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
294 	{"Headphone", NULL, "Platform Clock"},
295 	{"Headset Mic", NULL, "Platform Clock"},
296 	{"Internal Mic", NULL, "Platform Clock"},
297 	{"Speaker", NULL, "Platform Clock"},
298 
299 	{"Headset Mic", NULL, "MICBIAS1"},
300 	{"IN2P", NULL, "Headset Mic"},
301 	{"Headphone", NULL, "HPOL"},
302 	{"Headphone", NULL, "HPOR"},
303 };
304 
305 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
306 	{"DMIC1", NULL, "Internal Mic"},
307 };
308 
309 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
310 	{"DMIC2", NULL, "Internal Mic"},
311 };
312 
313 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
314 	{"Internal Mic", NULL, "MICBIAS1"},
315 	{"IN1P", NULL, "Internal Mic"},
316 };
317 
318 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
319 	{"Internal Mic", NULL, "MICBIAS1"},
320 	{"IN3P", NULL, "Internal Mic"},
321 };
322 
323 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
324 	{"ssp2 Tx", NULL, "codec_out0"},
325 	{"ssp2 Tx", NULL, "codec_out1"},
326 	{"codec_in0", NULL, "ssp2 Rx"},
327 	{"codec_in1", NULL, "ssp2 Rx"},
328 
329 	{"AIF1 Playback", NULL, "ssp2 Tx"},
330 	{"ssp2 Rx", NULL, "AIF1 Capture"},
331 };
332 
333 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
334 	{"ssp2 Tx", NULL, "codec_out0"},
335 	{"ssp2 Tx", NULL, "codec_out1"},
336 	{"codec_in0", NULL, "ssp2 Rx"},
337 	{"codec_in1", NULL, "ssp2 Rx"},
338 
339 	{"AIF2 Playback", NULL, "ssp2 Tx"},
340 	{"ssp2 Rx", NULL, "AIF2 Capture"},
341 };
342 
343 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
344 	{"ssp0 Tx", NULL, "modem_out"},
345 	{"modem_in", NULL, "ssp0 Rx"},
346 
347 	{"AIF1 Playback", NULL, "ssp0 Tx"},
348 	{"ssp0 Rx", NULL, "AIF1 Capture"},
349 };
350 
351 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
352 	{"ssp0 Tx", NULL, "modem_out"},
353 	{"modem_in", NULL, "ssp0 Rx"},
354 
355 	{"AIF2 Playback", NULL, "ssp0 Tx"},
356 	{"ssp0 Rx", NULL, "AIF2 Capture"},
357 };
358 
359 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
360 	{"Speaker", NULL, "SPOLP"},
361 	{"Speaker", NULL, "SPOLN"},
362 	{"Speaker", NULL, "SPORP"},
363 	{"Speaker", NULL, "SPORN"},
364 };
365 
366 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
367 	{"Speaker", NULL, "SPOLP"},
368 	{"Speaker", NULL, "SPOLN"},
369 };
370 
371 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
372 	SOC_DAPM_PIN_SWITCH("Headphone"),
373 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
374 	SOC_DAPM_PIN_SWITCH("Internal Mic"),
375 	SOC_DAPM_PIN_SWITCH("Speaker"),
376 };
377 
378 static struct snd_soc_jack_pin rt5640_pins[] = {
379 	{
380 		.pin	= "Headphone",
381 		.mask	= SND_JACK_HEADPHONE,
382 	},
383 	{
384 		.pin	= "Headset Mic",
385 		.mask	= SND_JACK_MICROPHONE,
386 	},
387 };
388 
389 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
390 					struct snd_pcm_hw_params *params)
391 {
392 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
393 	struct snd_soc_dai *dai = rtd->codec_dai;
394 
395 	return byt_rt5640_prepare_and_enable_pll1(dai, params_rate(params));
396 }
397 
398 /* Please keep this list alphabetically sorted */
399 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
400 	{	/* Acer Iconia Tab 8 W1-810 */
401 		.matches = {
402 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
403 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Iconia W1-810"),
404 		},
405 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
406 					BYT_RT5640_JD_SRC_JD1_IN4P |
407 					BYT_RT5640_OVCD_TH_2000UA |
408 					BYT_RT5640_OVCD_SF_0P75 |
409 					BYT_RT5640_SSP0_AIF1 |
410 					BYT_RT5640_MCLK_EN),
411 	},
412 	{
413 		.matches = {
414 			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
415 			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
416 		},
417 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
418 						 BYT_RT5640_MCLK_EN |
419 						 BYT_RT5640_SSP0_AIF1),
420 
421 	},
422 	{
423 		.matches = {
424 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ARCHOS"),
425 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ARCHOS 80 Cesium"),
426 		},
427 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
428 					BYT_RT5640_MONO_SPEAKER |
429 					BYT_RT5640_SSP0_AIF1 |
430 					BYT_RT5640_MCLK_EN),
431 	},
432 	{
433 		.matches = {
434 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
435 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
436 		},
437 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
438 					BYT_RT5640_JD_SRC_JD2_IN4N |
439 					BYT_RT5640_OVCD_TH_2000UA |
440 					BYT_RT5640_OVCD_SF_0P75 |
441 					BYT_RT5640_MCLK_EN),
442 	},
443 	{
444 		.matches = {
445 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
446 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
447 		},
448 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
449 					BYT_RT5640_MONO_SPEAKER |
450 					BYT_RT5640_DIFF_MIC |
451 					BYT_RT5640_SSP0_AIF2 |
452 					BYT_RT5640_MCLK_EN),
453 	},
454 	{	/* Chuwi Vi8 (CWI506) */
455 		.matches = {
456 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"),
457 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "i86"),
458 			/* The above are too generic, also match BIOS info */
459 			DMI_MATCH(DMI_BIOS_VERSION, "CHUWI.D86JLBNR"),
460 		},
461 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
462 					BYT_RT5640_MONO_SPEAKER |
463 					BYT_RT5640_SSP0_AIF1 |
464 					BYT_RT5640_MCLK_EN),
465 	},
466 	{
467 		.matches = {
468 			DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
469 			DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
470 		},
471 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP),
472 	},
473 	{
474 		.matches = {
475 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
476 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
477 		},
478 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
479 					BYT_RT5640_JD_SRC_JD2_IN4N |
480 					BYT_RT5640_OVCD_TH_2000UA |
481 					BYT_RT5640_OVCD_SF_0P75 |
482 					BYT_RT5640_MONO_SPEAKER |
483 					BYT_RT5640_MCLK_EN),
484 	},
485 	{
486 		.matches = {
487 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
488 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
489 		},
490 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
491 					BYT_RT5640_MCLK_EN),
492 	},
493 	{	/* HP Pavilion x2 10-n000nd */
494 		.matches = {
495 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
496 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP Pavilion x2 Detachable"),
497 		},
498 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
499 					BYT_RT5640_JD_SRC_JD2_IN4N |
500 					BYT_RT5640_OVCD_TH_1500UA |
501 					BYT_RT5640_OVCD_SF_0P75 |
502 					BYT_RT5640_SSP0_AIF1 |
503 					BYT_RT5640_MCLK_EN),
504 	},
505 	{	/* HP Stream 7 */
506 		.matches = {
507 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
508 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP Stream 7 Tablet"),
509 		},
510 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
511 					BYT_RT5640_MONO_SPEAKER |
512 					BYT_RT5640_JD_NOT_INV |
513 					BYT_RT5640_SSP0_AIF1 |
514 					BYT_RT5640_MCLK_EN),
515 	},
516 	{	/* I.T.Works TW891 */
517 		.matches = {
518 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
519 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
520 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
521 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
522 		},
523 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
524 					BYT_RT5640_MONO_SPEAKER |
525 					BYT_RT5640_SSP0_AIF1 |
526 					BYT_RT5640_MCLK_EN),
527 	},
528 	{	/* Lamina I8270 / T701BR.SE */
529 		.matches = {
530 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Lamina"),
531 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "T701BR.SE"),
532 		},
533 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
534 					BYT_RT5640_MONO_SPEAKER |
535 					BYT_RT5640_JD_NOT_INV |
536 					BYT_RT5640_SSP0_AIF1 |
537 					BYT_RT5640_MCLK_EN),
538 	},
539 	{	/* MSI S100 tablet */
540 		.matches = {
541 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Micro-Star International Co., Ltd."),
542 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "S100"),
543 		},
544 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
545 					BYT_RT5640_JD_SRC_JD2_IN4N |
546 					BYT_RT5640_OVCD_TH_2000UA |
547 					BYT_RT5640_OVCD_SF_0P75 |
548 					BYT_RT5640_MONO_SPEAKER |
549 					BYT_RT5640_DIFF_MIC |
550 					BYT_RT5640_MCLK_EN),
551 	},
552 	{	/* Pipo W4 */
553 		.matches = {
554 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
555 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
556 			/* The above are too generic, also match BIOS info */
557 			DMI_MATCH(DMI_BIOS_VERSION, "V8L_WIN32_CHIPHD"),
558 		},
559 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
560 					BYT_RT5640_MONO_SPEAKER |
561 					BYT_RT5640_SSP0_AIF1 |
562 					BYT_RT5640_MCLK_EN),
563 	},
564 	{	/* Point of View Mobii TAB-P800W (V2.0) */
565 		.matches = {
566 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
567 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
568 			/* The above are too generic, also match BIOS info */
569 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "3BAIR1014"),
570 			DMI_EXACT_MATCH(DMI_BIOS_DATE, "10/24/2014"),
571 		},
572 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
573 					BYT_RT5640_JD_SRC_JD2_IN4N |
574 					BYT_RT5640_OVCD_TH_2000UA |
575 					BYT_RT5640_OVCD_SF_0P75 |
576 					BYT_RT5640_MONO_SPEAKER |
577 					BYT_RT5640_DIFF_MIC |
578 					BYT_RT5640_SSP0_AIF2 |
579 					BYT_RT5640_MCLK_EN),
580 	},
581 	{	/* Point of View Mobii TAB-P800W (V2.1) */
582 		.matches = {
583 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
584 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
585 			/* The above are too generic, also match BIOS info */
586 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "3BAIR1013"),
587 			DMI_EXACT_MATCH(DMI_BIOS_DATE, "08/22/2014"),
588 		},
589 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
590 					BYT_RT5640_JD_SRC_JD2_IN4N |
591 					BYT_RT5640_OVCD_TH_2000UA |
592 					BYT_RT5640_OVCD_SF_0P75 |
593 					BYT_RT5640_MONO_SPEAKER |
594 					BYT_RT5640_DIFF_MIC |
595 					BYT_RT5640_SSP0_AIF2 |
596 					BYT_RT5640_MCLK_EN),
597 	},
598 	{
599 		.matches = {
600 			DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
601 			DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
602 		},
603 		.driver_data = (void *)(BYT_RT5640_IN3_MAP |
604 					BYT_RT5640_MCLK_EN |
605 					BYT_RT5640_SSP0_AIF1),
606 	},
607 	{	/* Toshiba Satellite Click Mini L9W-B */
608 		.matches = {
609 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
610 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SATELLITE Click Mini L9W-B"),
611 		},
612 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
613 					BYT_RT5640_JD_SRC_JD2_IN4N |
614 					BYT_RT5640_OVCD_TH_1500UA |
615 					BYT_RT5640_OVCD_SF_0P75 |
616 					BYT_RT5640_SSP0_AIF1 |
617 					BYT_RT5640_MCLK_EN),
618 	},
619 	{	/* Catch-all for generic Insyde tablets, must be last */
620 		.matches = {
621 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
622 		},
623 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
624 					BYT_RT5640_MCLK_EN |
625 					BYT_RT5640_SSP0_AIF1),
626 
627 	},
628 	{}
629 };
630 
631 /*
632  * Note this MUST be called before snd_soc_register_card(), so that the props
633  * are in place before the codec component driver's probe function parses them.
634  */
635 static int byt_rt5640_add_codec_device_props(const char *i2c_dev_name)
636 {
637 	struct property_entry props[MAX_NO_PROPS] = {};
638 	struct device *i2c_dev;
639 	int ret, cnt = 0;
640 
641 	i2c_dev = bus_find_device_by_name(&i2c_bus_type, NULL, i2c_dev_name);
642 	if (!i2c_dev)
643 		return -EPROBE_DEFER;
644 
645 	switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
646 	case BYT_RT5640_DMIC1_MAP:
647 		props[cnt++] = PROPERTY_ENTRY_U32("realtek,dmic1-data-pin",
648 						  RT5640_DMIC1_DATA_PIN_IN1P);
649 		break;
650 	case BYT_RT5640_DMIC2_MAP:
651 		props[cnt++] = PROPERTY_ENTRY_U32("realtek,dmic2-data-pin",
652 						  RT5640_DMIC2_DATA_PIN_IN1N);
653 		break;
654 	case BYT_RT5640_IN1_MAP:
655 		if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
656 			props[cnt++] =
657 				PROPERTY_ENTRY_BOOL("realtek,in1-differential");
658 		break;
659 	case BYT_RT5640_IN3_MAP:
660 		if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
661 			props[cnt++] =
662 				PROPERTY_ENTRY_BOOL("realtek,in3-differential");
663 		break;
664 	}
665 
666 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
667 		props[cnt++] = PROPERTY_ENTRY_U32(
668 				    "realtek,jack-detect-source",
669 				    BYT_RT5640_JDSRC(byt_rt5640_quirk));
670 
671 		props[cnt++] = PROPERTY_ENTRY_U32(
672 				    "realtek,over-current-threshold-microamp",
673 				    BYT_RT5640_OVCD_TH(byt_rt5640_quirk) * 100);
674 
675 		props[cnt++] = PROPERTY_ENTRY_U32(
676 				    "realtek,over-current-scale-factor",
677 				    BYT_RT5640_OVCD_SF(byt_rt5640_quirk));
678 	}
679 
680 	if (byt_rt5640_quirk & BYT_RT5640_JD_NOT_INV)
681 		props[cnt++] = PROPERTY_ENTRY_BOOL("realtek,jack-detect-not-inverted");
682 
683 	ret = device_add_properties(i2c_dev, props);
684 	put_device(i2c_dev);
685 
686 	return ret;
687 }
688 
689 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
690 {
691 	struct snd_soc_card *card = runtime->card;
692 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
693 	struct snd_soc_component *component = runtime->codec_dai->component;
694 	const struct snd_soc_dapm_route *custom_map;
695 	int num_routes;
696 	int ret;
697 
698 	card->dapm.idle_bias_off = true;
699 
700 	/* Start with RC clk for jack-detect (we disable MCLK below) */
701 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
702 		snd_soc_component_update_bits(component, RT5640_GLB_CLK,
703 			RT5640_SCLK_SRC_MASK, RT5640_SCLK_SRC_RCCLK);
704 
705 	rt5640_sel_asrc_clk_src(component,
706 				RT5640_DA_STEREO_FILTER |
707 				RT5640_DA_MONO_L_FILTER	|
708 				RT5640_DA_MONO_R_FILTER	|
709 				RT5640_AD_STEREO_FILTER	|
710 				RT5640_AD_MONO_L_FILTER	|
711 				RT5640_AD_MONO_R_FILTER,
712 				RT5640_CLK_SEL_ASRC);
713 
714 	ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
715 					ARRAY_SIZE(byt_rt5640_controls));
716 	if (ret) {
717 		dev_err(card->dev, "unable to add card controls\n");
718 		return ret;
719 	}
720 
721 	switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
722 	case BYT_RT5640_IN1_MAP:
723 		custom_map = byt_rt5640_intmic_in1_map;
724 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
725 		break;
726 	case BYT_RT5640_IN3_MAP:
727 		custom_map = byt_rt5640_intmic_in3_map;
728 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
729 		break;
730 	case BYT_RT5640_DMIC2_MAP:
731 		custom_map = byt_rt5640_intmic_dmic2_map;
732 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
733 		break;
734 	default:
735 		custom_map = byt_rt5640_intmic_dmic1_map;
736 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
737 	}
738 
739 	ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
740 	if (ret)
741 		return ret;
742 
743 	if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
744 		ret = snd_soc_dapm_add_routes(&card->dapm,
745 					byt_rt5640_ssp2_aif2_map,
746 					ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
747 	} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
748 		ret = snd_soc_dapm_add_routes(&card->dapm,
749 					byt_rt5640_ssp0_aif1_map,
750 					ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
751 	} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
752 		ret = snd_soc_dapm_add_routes(&card->dapm,
753 					byt_rt5640_ssp0_aif2_map,
754 					ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
755 	} else {
756 		ret = snd_soc_dapm_add_routes(&card->dapm,
757 					byt_rt5640_ssp2_aif1_map,
758 					ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
759 	}
760 	if (ret)
761 		return ret;
762 
763 	if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
764 		ret = snd_soc_dapm_add_routes(&card->dapm,
765 					byt_rt5640_mono_spk_map,
766 					ARRAY_SIZE(byt_rt5640_mono_spk_map));
767 	} else {
768 		ret = snd_soc_dapm_add_routes(&card->dapm,
769 					byt_rt5640_stereo_spk_map,
770 					ARRAY_SIZE(byt_rt5640_stereo_spk_map));
771 	}
772 	if (ret)
773 		return ret;
774 
775 	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
776 	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
777 
778 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
779 		/*
780 		 * The firmware might enable the clock at
781 		 * boot (this information may or may not
782 		 * be reflected in the enable clock register).
783 		 * To change the rate we must disable the clock
784 		 * first to cover these cases. Due to common
785 		 * clock framework restrictions that do not allow
786 		 * to disable a clock that has not been enabled,
787 		 * we need to enable the clock first.
788 		 */
789 		ret = clk_prepare_enable(priv->mclk);
790 		if (!ret)
791 			clk_disable_unprepare(priv->mclk);
792 
793 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
794 			ret = clk_set_rate(priv->mclk, 25000000);
795 		else
796 			ret = clk_set_rate(priv->mclk, 19200000);
797 
798 		if (ret) {
799 			dev_err(card->dev, "unable to set MCLK rate\n");
800 			return ret;
801 		}
802 	}
803 
804 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
805 		ret = snd_soc_card_jack_new(card, "Headset",
806 					    SND_JACK_HEADSET | SND_JACK_BTN_0,
807 					    &priv->jack, rt5640_pins,
808 					    ARRAY_SIZE(rt5640_pins));
809 		if (ret) {
810 			dev_err(card->dev, "Jack creation failed %d\n", ret);
811 			return ret;
812 		}
813 		snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0,
814 				 KEY_PLAYPAUSE);
815 		snd_soc_component_set_jack(component, &priv->jack, NULL);
816 	}
817 
818 	return 0;
819 }
820 
821 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
822 	.formats = SNDRV_PCM_FMTBIT_S24_LE,
823 	.rate_min = 48000,
824 	.rate_max = 48000,
825 	.channels_min = 2,
826 	.channels_max = 2,
827 };
828 
829 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
830 			    struct snd_pcm_hw_params *params)
831 {
832 	struct snd_interval *rate = hw_param_interval(params,
833 			SNDRV_PCM_HW_PARAM_RATE);
834 	struct snd_interval *channels = hw_param_interval(params,
835 						SNDRV_PCM_HW_PARAM_CHANNELS);
836 	int ret;
837 
838 	/* The DSP will covert the FE rate to 48k, stereo */
839 	rate->min = rate->max = 48000;
840 	channels->min = channels->max = 2;
841 
842 	if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
843 		(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
844 
845 		/* set SSP0 to 16-bit */
846 		params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
847 
848 		/*
849 		 * Default mode for SSP configuration is TDM 4 slot, override config
850 		 * with explicit setting to I2S 2ch 16-bit. The word length is set with
851 		 * dai_set_tdm_slot() since there is no other API exposed
852 		 */
853 		ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
854 					SND_SOC_DAIFMT_I2S     |
855 					SND_SOC_DAIFMT_NB_NF   |
856 					SND_SOC_DAIFMT_CBS_CFS
857 			);
858 		if (ret < 0) {
859 			dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
860 			return ret;
861 		}
862 
863 		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
864 		if (ret < 0) {
865 			dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
866 			return ret;
867 		}
868 
869 	} else {
870 
871 		/* set SSP2 to 24-bit */
872 		params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
873 
874 		/*
875 		 * Default mode for SSP configuration is TDM 4 slot, override config
876 		 * with explicit setting to I2S 2ch 24-bit. The word length is set with
877 		 * dai_set_tdm_slot() since there is no other API exposed
878 		 */
879 		ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
880 					SND_SOC_DAIFMT_I2S     |
881 					SND_SOC_DAIFMT_NB_NF   |
882 					SND_SOC_DAIFMT_CBS_CFS
883 			);
884 		if (ret < 0) {
885 			dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
886 			return ret;
887 		}
888 
889 		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
890 		if (ret < 0) {
891 			dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
892 			return ret;
893 		}
894 	}
895 	return 0;
896 }
897 
898 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
899 {
900 	return snd_pcm_hw_constraint_single(substream->runtime,
901 			SNDRV_PCM_HW_PARAM_RATE, 48000);
902 }
903 
904 static const struct snd_soc_ops byt_rt5640_aif1_ops = {
905 	.startup = byt_rt5640_aif1_startup,
906 };
907 
908 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
909 	.hw_params = byt_rt5640_aif1_hw_params,
910 };
911 
912 static struct snd_soc_dai_link byt_rt5640_dais[] = {
913 	[MERR_DPCM_AUDIO] = {
914 		.name = "Baytrail Audio Port",
915 		.stream_name = "Baytrail Audio",
916 		.cpu_dai_name = "media-cpu-dai",
917 		.codec_dai_name = "snd-soc-dummy-dai",
918 		.codec_name = "snd-soc-dummy",
919 		.platform_name = "sst-mfld-platform",
920 		.nonatomic = true,
921 		.dynamic = 1,
922 		.dpcm_playback = 1,
923 		.dpcm_capture = 1,
924 		.ops = &byt_rt5640_aif1_ops,
925 	},
926 	[MERR_DPCM_DEEP_BUFFER] = {
927 		.name = "Deep-Buffer Audio Port",
928 		.stream_name = "Deep-Buffer Audio",
929 		.cpu_dai_name = "deepbuffer-cpu-dai",
930 		.codec_dai_name = "snd-soc-dummy-dai",
931 		.codec_name = "snd-soc-dummy",
932 		.platform_name = "sst-mfld-platform",
933 		.nonatomic = true,
934 		.dynamic = 1,
935 		.dpcm_playback = 1,
936 		.ops = &byt_rt5640_aif1_ops,
937 	},
938 		/* back ends */
939 	{
940 		.name = "SSP2-Codec",
941 		.id = 0,
942 		.cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
943 		.platform_name = "sst-mfld-platform",
944 		.no_pcm = 1,
945 		.codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
946 		.codec_name = "i2c-10EC5640:00", /* overwritten with HID */
947 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
948 						| SND_SOC_DAIFMT_CBS_CFS,
949 		.be_hw_params_fixup = byt_rt5640_codec_fixup,
950 		.ignore_suspend = 1,
951 		.nonatomic = true,
952 		.dpcm_playback = 1,
953 		.dpcm_capture = 1,
954 		.init = byt_rt5640_init,
955 		.ops = &byt_rt5640_be_ssp2_ops,
956 	},
957 };
958 
959 /* SoC card */
960 static char byt_rt5640_codec_name[SND_ACPI_I2C_ID_LEN];
961 static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
962 static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
963 static char byt_rt5640_long_name[40]; /* = "bytcr-rt5640-*-spk-*-mic" */
964 
965 static int byt_rt5640_suspend(struct snd_soc_card *card)
966 {
967 	struct snd_soc_component *component;
968 
969 	if (!BYT_RT5640_JDSRC(byt_rt5640_quirk))
970 		return 0;
971 
972 	list_for_each_entry(component, &card->component_dev_list, card_list) {
973 		if (!strcmp(component->name, byt_rt5640_codec_name)) {
974 			dev_dbg(component->dev, "disabling jack detect before suspend\n");
975 			snd_soc_component_set_jack(component, NULL, NULL);
976 			break;
977 		}
978 	}
979 
980 	return 0;
981 }
982 
983 static int byt_rt5640_resume(struct snd_soc_card *card)
984 {
985 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
986 	struct snd_soc_component *component;
987 
988 	if (!BYT_RT5640_JDSRC(byt_rt5640_quirk))
989 		return 0;
990 
991 	list_for_each_entry(component, &card->component_dev_list, card_list) {
992 		if (!strcmp(component->name, byt_rt5640_codec_name)) {
993 			dev_dbg(component->dev, "re-enabling jack detect after resume\n");
994 			snd_soc_component_set_jack(component, &priv->jack, NULL);
995 			break;
996 		}
997 	}
998 
999 	return 0;
1000 }
1001 
1002 static struct snd_soc_card byt_rt5640_card = {
1003 	.name = "bytcr-rt5640",
1004 	.owner = THIS_MODULE,
1005 	.dai_link = byt_rt5640_dais,
1006 	.num_links = ARRAY_SIZE(byt_rt5640_dais),
1007 	.dapm_widgets = byt_rt5640_widgets,
1008 	.num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
1009 	.dapm_routes = byt_rt5640_audio_map,
1010 	.num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
1011 	.fully_routed = true,
1012 	.suspend_pre = byt_rt5640_suspend,
1013 	.resume_post = byt_rt5640_resume,
1014 };
1015 
1016 static bool is_valleyview(void)
1017 {
1018 	static const struct x86_cpu_id cpu_ids[] = {
1019 		{ X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
1020 		{}
1021 	};
1022 
1023 	if (!x86_match_cpu(cpu_ids))
1024 		return false;
1025 	return true;
1026 }
1027 
1028 struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
1029 	u64 aif_value;       /* 1: AIF1, 2: AIF2 */
1030 	u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
1031 };
1032 
1033 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
1034 {
1035 	const char * const map_name[] = { "dmic1", "dmic2", "in1", "in3" };
1036 	const struct dmi_system_id *dmi_id;
1037 	struct byt_rt5640_private *priv;
1038 	struct snd_soc_acpi_mach *mach;
1039 	const char *i2c_name = NULL;
1040 	int ret_val = 0;
1041 	int dai_index = 0;
1042 	int i;
1043 
1044 	is_bytcr = false;
1045 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
1046 	if (!priv)
1047 		return -ENOMEM;
1048 
1049 	/* register the soc card */
1050 	byt_rt5640_card.dev = &pdev->dev;
1051 	mach = byt_rt5640_card.dev->platform_data;
1052 	snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
1053 
1054 	/* fix index of codec dai */
1055 	for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
1056 		if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
1057 			dai_index = i;
1058 			break;
1059 		}
1060 	}
1061 
1062 	/* fixup codec name based on HID */
1063 	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
1064 	if (i2c_name) {
1065 		snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
1066 			"%s%s", "i2c-", i2c_name);
1067 
1068 		byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
1069 	}
1070 
1071 	/*
1072 	 * swap SSP0 if bytcr is detected
1073 	 * (will be overridden if DMI quirk is detected)
1074 	 */
1075 	if (is_valleyview()) {
1076 		struct sst_platform_info *p_info = mach->pdata;
1077 		const struct sst_res_info *res_info = p_info->res_info;
1078 
1079 		if (res_info->acpi_ipc_irq_index == 0)
1080 			is_bytcr = true;
1081 	}
1082 
1083 	if (is_bytcr) {
1084 		/*
1085 		 * Baytrail CR platforms may have CHAN package in BIOS, try
1086 		 * to find relevant routing quirk based as done on Windows
1087 		 * platforms. We have to read the information directly from the
1088 		 * BIOS, at this stage the card is not created and the links
1089 		 * with the codec driver/pdata are non-existent
1090 		 */
1091 
1092 		struct acpi_chan_package chan_package;
1093 
1094 		/* format specified: 2 64-bit integers */
1095 		struct acpi_buffer format = {sizeof("NN"), "NN"};
1096 		struct acpi_buffer state = {0, NULL};
1097 		struct snd_soc_acpi_package_context pkg_ctx;
1098 		bool pkg_found = false;
1099 
1100 		state.length = sizeof(chan_package);
1101 		state.pointer = &chan_package;
1102 
1103 		pkg_ctx.name = "CHAN";
1104 		pkg_ctx.length = 2;
1105 		pkg_ctx.format = &format;
1106 		pkg_ctx.state = &state;
1107 		pkg_ctx.data_valid = false;
1108 
1109 		pkg_found = snd_soc_acpi_find_package_from_hid(mach->id,
1110 							       &pkg_ctx);
1111 		if (pkg_found) {
1112 			if (chan_package.aif_value == 1) {
1113 				dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
1114 				byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
1115 			} else  if (chan_package.aif_value == 2) {
1116 				dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
1117 				byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
1118 			} else {
1119 				dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
1120 				pkg_found = false;
1121 			}
1122 		}
1123 
1124 		if (!pkg_found) {
1125 			/* no BIOS indications, assume SSP0-AIF2 connection */
1126 			byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
1127 		}
1128 
1129 		/* change defaults for Baytrail-CR capture */
1130 		byt_rt5640_quirk |= BYTCR_INPUT_DEFAULTS;
1131 	} else {
1132 		byt_rt5640_quirk |= BYT_RT5640_DMIC1_MAP |
1133 				    BYT_RT5640_JD_SRC_JD2_IN4N |
1134 				    BYT_RT5640_OVCD_TH_2000UA |
1135 				    BYT_RT5640_OVCD_SF_0P75;
1136 	}
1137 
1138 	/* check quirks before creating card */
1139 	dmi_id = dmi_first_match(byt_rt5640_quirk_table);
1140 	if (dmi_id)
1141 		byt_rt5640_quirk = (unsigned long)dmi_id->driver_data;
1142 	if (quirk_override) {
1143 		dev_info(&pdev->dev, "Overriding quirk 0x%x => 0x%x\n",
1144 			 (unsigned int)byt_rt5640_quirk, quirk_override);
1145 		byt_rt5640_quirk = quirk_override;
1146 	}
1147 
1148 	/* Must be called before register_card, also see declaration comment. */
1149 	ret_val = byt_rt5640_add_codec_device_props(byt_rt5640_codec_name);
1150 	if (ret_val)
1151 		return ret_val;
1152 
1153 	log_quirks(&pdev->dev);
1154 
1155 	if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
1156 	    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
1157 
1158 		/* fixup codec aif name */
1159 		snprintf(byt_rt5640_codec_aif_name,
1160 			sizeof(byt_rt5640_codec_aif_name),
1161 			"%s", "rt5640-aif2");
1162 
1163 		byt_rt5640_dais[dai_index].codec_dai_name =
1164 			byt_rt5640_codec_aif_name;
1165 	}
1166 
1167 	if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
1168 	    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
1169 
1170 		/* fixup cpu dai name name */
1171 		snprintf(byt_rt5640_cpu_dai_name,
1172 			sizeof(byt_rt5640_cpu_dai_name),
1173 			"%s", "ssp0-port");
1174 
1175 		byt_rt5640_dais[dai_index].cpu_dai_name =
1176 			byt_rt5640_cpu_dai_name;
1177 	}
1178 
1179 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
1180 		priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
1181 		if (IS_ERR(priv->mclk)) {
1182 			ret_val = PTR_ERR(priv->mclk);
1183 
1184 			dev_err(&pdev->dev,
1185 				"Failed to get MCLK from pmc_plt_clk_3: %d\n",
1186 				ret_val);
1187 
1188 			/*
1189 			 * Fall back to bit clock usage for -ENOENT (clock not
1190 			 * available likely due to missing dependencies), bail
1191 			 * for all other errors, including -EPROBE_DEFER
1192 			 */
1193 			if (ret_val != -ENOENT)
1194 				return ret_val;
1195 			byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
1196 		}
1197 	}
1198 
1199 	snprintf(byt_rt5640_long_name, sizeof(byt_rt5640_long_name),
1200 		 "bytcr-rt5640-%s-spk-%s-mic",
1201 		 (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) ?
1202 			"mono" : "stereo",
1203 		 map_name[BYT_RT5640_MAP(byt_rt5640_quirk)]);
1204 	byt_rt5640_card.long_name = byt_rt5640_long_name;
1205 
1206 	ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
1207 
1208 	if (ret_val) {
1209 		dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
1210 			ret_val);
1211 		return ret_val;
1212 	}
1213 	platform_set_drvdata(pdev, &byt_rt5640_card);
1214 	return ret_val;
1215 }
1216 
1217 static struct platform_driver snd_byt_rt5640_mc_driver = {
1218 	.driver = {
1219 		.name = "bytcr_rt5640",
1220 	},
1221 	.probe = snd_byt_rt5640_mc_probe,
1222 };
1223 
1224 module_platform_driver(snd_byt_rt5640_mc_driver);
1225 
1226 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
1227 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
1228 MODULE_LICENSE("GPL v2");
1229 MODULE_ALIAS("platform:bytcr_rt5640");
1230