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 <sound/pcm.h>
33 #include <sound/pcm_params.h>
34 #include <sound/soc.h>
35 #include <sound/jack.h>
36 #include <sound/soc-acpi.h>
37 #include <dt-bindings/sound/rt5640.h>
38 #include "../../codecs/rt5640.h"
39 #include "../atom/sst-atom-controls.h"
40 #include "../common/sst-dsp.h"
41 
42 enum {
43 	BYT_RT5640_DMIC1_MAP,
44 	BYT_RT5640_DMIC2_MAP,
45 	BYT_RT5640_IN1_MAP,
46 	BYT_RT5640_IN3_MAP,
47 };
48 
49 enum {
50 	BYT_RT5640_JD_SRC_GPIO1		= (RT5640_JD_SRC_GPIO1 << 4),
51 	BYT_RT5640_JD_SRC_JD1_IN4P	= (RT5640_JD_SRC_JD1_IN4P << 4),
52 	BYT_RT5640_JD_SRC_JD2_IN4N	= (RT5640_JD_SRC_JD2_IN4N << 4),
53 	BYT_RT5640_JD_SRC_GPIO2		= (RT5640_JD_SRC_GPIO2 << 4),
54 	BYT_RT5640_JD_SRC_GPIO3		= (RT5640_JD_SRC_GPIO3 << 4),
55 	BYT_RT5640_JD_SRC_GPIO4		= (RT5640_JD_SRC_GPIO4 << 4),
56 };
57 
58 enum {
59 	BYT_RT5640_OVCD_TH_600UA	= (6 << 8),
60 	BYT_RT5640_OVCD_TH_1500UA	= (15 << 8),
61 	BYT_RT5640_OVCD_TH_2000UA	= (20 << 8),
62 };
63 
64 enum {
65 	BYT_RT5640_OVCD_SF_0P5		= (RT5640_OVCD_SF_0P5 << 13),
66 	BYT_RT5640_OVCD_SF_0P75		= (RT5640_OVCD_SF_0P75 << 13),
67 	BYT_RT5640_OVCD_SF_1P0		= (RT5640_OVCD_SF_1P0 << 13),
68 	BYT_RT5640_OVCD_SF_1P5		= (RT5640_OVCD_SF_1P5 << 13),
69 };
70 
71 #define BYT_RT5640_MAP(quirk)		((quirk) &  GENMASK(3, 0))
72 #define BYT_RT5640_JDSRC(quirk)		(((quirk) & GENMASK(7, 4)) >> 4)
73 #define BYT_RT5640_OVCD_TH(quirk)	(((quirk) & GENMASK(12, 8)) >> 8)
74 #define BYT_RT5640_OVCD_SF(quirk)	(((quirk) & GENMASK(14, 13)) >> 13)
75 #define BYT_RT5640_JD_NOT_INV		BIT(16)
76 #define BYT_RT5640_MONO_SPEAKER		BIT(17)
77 #define BYT_RT5640_DIFF_MIC		BIT(18) /* default is single-ended */
78 #define BYT_RT5640_SSP2_AIF2		BIT(19) /* default is using AIF1  */
79 #define BYT_RT5640_SSP0_AIF1		BIT(20)
80 #define BYT_RT5640_SSP0_AIF2		BIT(21)
81 #define BYT_RT5640_MCLK_EN		BIT(22)
82 #define BYT_RT5640_MCLK_25MHZ		BIT(23)
83 
84 #define BYTCR_INPUT_DEFAULTS				\
85 	(BYT_RT5640_IN3_MAP |				\
86 	 BYT_RT5640_JD_SRC_JD1_IN4P |			\
87 	 BYT_RT5640_OVCD_TH_2000UA |			\
88 	 BYT_RT5640_OVCD_SF_0P75 |			\
89 	 BYT_RT5640_DIFF_MIC)
90 
91 /* in-diff or dmic-pin + jdsrc + ovcd-th + -sf + jd-inv + terminating entry */
92 #define MAX_NO_PROPS 6
93 
94 struct byt_rt5640_private {
95 	struct snd_soc_jack jack;
96 	struct clk *mclk;
97 };
98 static bool is_bytcr;
99 
100 static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
101 static unsigned int quirk_override;
102 module_param_named(quirk, quirk_override, uint, 0444);
103 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
104 
105 static void log_quirks(struct device *dev)
106 {
107 	int map;
108 	bool has_mclk = false;
109 	bool has_ssp0 = false;
110 	bool has_ssp0_aif1 = false;
111 	bool has_ssp0_aif2 = false;
112 	bool has_ssp2_aif2 = false;
113 
114 	map = BYT_RT5640_MAP(byt_rt5640_quirk);
115 	switch (map) {
116 	case BYT_RT5640_DMIC1_MAP:
117 		dev_info(dev, "quirk DMIC1_MAP enabled\n");
118 		break;
119 	case BYT_RT5640_DMIC2_MAP:
120 		dev_info(dev, "quirk DMIC2_MAP enabled\n");
121 		break;
122 	case BYT_RT5640_IN1_MAP:
123 		dev_info(dev, "quirk IN1_MAP enabled\n");
124 		break;
125 	case BYT_RT5640_IN3_MAP:
126 		dev_info(dev, "quirk IN3_MAP enabled\n");
127 		break;
128 	default:
129 		dev_err(dev, "quirk map 0x%x is not supported, microphone input will not work\n", map);
130 		break;
131 	}
132 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
133 		dev_info(dev, "quirk realtek,jack-detect-source %ld\n",
134 			 BYT_RT5640_JDSRC(byt_rt5640_quirk));
135 		dev_info(dev, "quirk realtek,over-current-threshold-microamp %ld\n",
136 			 BYT_RT5640_OVCD_TH(byt_rt5640_quirk) * 100);
137 		dev_info(dev, "quirk realtek,over-current-scale-factor %ld\n",
138 			 BYT_RT5640_OVCD_SF(byt_rt5640_quirk));
139 	}
140 	if (byt_rt5640_quirk & BYT_RT5640_JD_NOT_INV)
141 		dev_info(dev, "quirk JD_NOT_INV enabled\n");
142 	if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
143 		dev_info(dev, "quirk MONO_SPEAKER enabled\n");
144 	if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
145 		dev_info(dev, "quirk DIFF_MIC enabled\n");
146 	if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
147 		dev_info(dev, "quirk SSP0_AIF1 enabled\n");
148 		has_ssp0 = true;
149 		has_ssp0_aif1 = true;
150 	}
151 	if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
152 		dev_info(dev, "quirk SSP0_AIF2 enabled\n");
153 		has_ssp0 = true;
154 		has_ssp0_aif2 = true;
155 	}
156 	if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
157 		dev_info(dev, "quirk SSP2_AIF2 enabled\n");
158 		has_ssp2_aif2 = true;
159 	}
160 	if (is_bytcr && !has_ssp0)
161 		dev_err(dev, "Invalid routing, bytcr detected but no SSP0-based quirk, audio cannot work with SSP2 on bytcr\n");
162 	if (has_ssp0_aif1 && has_ssp0_aif2)
163 		dev_err(dev, "Invalid routing, SSP0 cannot be connected to both AIF1 and AIF2\n");
164 	if (has_ssp0 && has_ssp2_aif2)
165 		dev_err(dev, "Invalid routing, cannot have both SSP0 and SSP2 connected to codec\n");
166 
167 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
168 		dev_info(dev, "quirk MCLK_EN enabled\n");
169 		has_mclk = true;
170 	}
171 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
172 		if (has_mclk)
173 			dev_info(dev, "quirk MCLK_25MHZ enabled\n");
174 		else
175 			dev_err(dev, "quirk MCLK_25MHZ enabled but quirk MCLK not selected, will be ignored\n");
176 	}
177 }
178 
179 static int byt_rt5640_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai,
180 					      int rate)
181 {
182 	int ret;
183 
184 	/* Configure the PLL before selecting it */
185 	if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
186 		/* use bitclock as PLL input */
187 		if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
188 		    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
189 			/* 2x16 bit slots on SSP0 */
190 			ret = snd_soc_dai_set_pll(codec_dai, 0,
191 						  RT5640_PLL1_S_BCLK1,
192 						  rate * 32, rate * 512);
193 		} else {
194 			/* 2x15 bit slots on SSP2 */
195 			ret = snd_soc_dai_set_pll(codec_dai, 0,
196 						  RT5640_PLL1_S_BCLK1,
197 						  rate * 50, rate * 512);
198 		}
199 	} else {
200 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
201 			ret = snd_soc_dai_set_pll(codec_dai, 0,
202 						  RT5640_PLL1_S_MCLK,
203 						  25000000, rate * 512);
204 		} else {
205 			ret = snd_soc_dai_set_pll(codec_dai, 0,
206 						  RT5640_PLL1_S_MCLK,
207 						  19200000, rate * 512);
208 		}
209 	}
210 
211 	if (ret < 0) {
212 		dev_err(codec_dai->component->dev, "can't set pll: %d\n", ret);
213 		return ret;
214 	}
215 
216 	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
217 				     rate * 512, SND_SOC_CLOCK_IN);
218 	if (ret < 0) {
219 		dev_err(codec_dai->component->dev, "can't set clock %d\n", ret);
220 		return ret;
221 	}
222 
223 	return 0;
224 }
225 
226 #define BYT_CODEC_DAI1	"rt5640-aif1"
227 #define BYT_CODEC_DAI2	"rt5640-aif2"
228 
229 static int platform_clock_control(struct snd_soc_dapm_widget *w,
230 				  struct snd_kcontrol *k, int  event)
231 {
232 	struct snd_soc_dapm_context *dapm = w->dapm;
233 	struct snd_soc_card *card = dapm->card;
234 	struct snd_soc_dai *codec_dai;
235 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
236 	int ret;
237 
238 	codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI1);
239 	if (!codec_dai)
240 		codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI2);
241 
242 	if (!codec_dai) {
243 		dev_err(card->dev,
244 			"Codec dai not found; Unable to set platform clock\n");
245 		return -EIO;
246 	}
247 
248 	if (SND_SOC_DAPM_EVENT_ON(event)) {
249 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
250 			ret = clk_prepare_enable(priv->mclk);
251 			if (ret < 0) {
252 				dev_err(card->dev,
253 					"could not configure MCLK state\n");
254 				return ret;
255 			}
256 		}
257 		ret = byt_rt5640_prepare_and_enable_pll1(codec_dai, 48000);
258 	} else {
259 		/*
260 		 * Set codec clock source to internal clock before
261 		 * turning off the platform clock. Codec needs clock
262 		 * for Jack detection and button press
263 		 */
264 		ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
265 					     48000 * 512,
266 					     SND_SOC_CLOCK_IN);
267 		if (!ret) {
268 			if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
269 				clk_disable_unprepare(priv->mclk);
270 		}
271 	}
272 
273 	if (ret < 0) {
274 		dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
275 		return ret;
276 	}
277 
278 	return 0;
279 }
280 
281 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
282 	SND_SOC_DAPM_HP("Headphone", NULL),
283 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
284 	SND_SOC_DAPM_MIC("Internal Mic", NULL),
285 	SND_SOC_DAPM_SPK("Speaker", NULL),
286 	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
287 			    platform_clock_control, SND_SOC_DAPM_PRE_PMU |
288 			    SND_SOC_DAPM_POST_PMD),
289 
290 };
291 
292 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
293 	{"Headphone", NULL, "Platform Clock"},
294 	{"Headset Mic", NULL, "Platform Clock"},
295 	{"Internal Mic", NULL, "Platform Clock"},
296 	{"Speaker", NULL, "Platform Clock"},
297 
298 	{"Headset Mic", NULL, "MICBIAS1"},
299 	{"IN2P", NULL, "Headset Mic"},
300 	{"Headphone", NULL, "HPOL"},
301 	{"Headphone", NULL, "HPOR"},
302 };
303 
304 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
305 	{"DMIC1", NULL, "Internal Mic"},
306 };
307 
308 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
309 	{"DMIC2", NULL, "Internal Mic"},
310 };
311 
312 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
313 	{"Internal Mic", NULL, "MICBIAS1"},
314 	{"IN1P", NULL, "Internal Mic"},
315 };
316 
317 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
318 	{"Internal Mic", NULL, "MICBIAS1"},
319 	{"IN3P", NULL, "Internal Mic"},
320 };
321 
322 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
323 	{"ssp2 Tx", NULL, "codec_out0"},
324 	{"ssp2 Tx", NULL, "codec_out1"},
325 	{"codec_in0", NULL, "ssp2 Rx"},
326 	{"codec_in1", NULL, "ssp2 Rx"},
327 
328 	{"AIF1 Playback", NULL, "ssp2 Tx"},
329 	{"ssp2 Rx", NULL, "AIF1 Capture"},
330 };
331 
332 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
333 	{"ssp2 Tx", NULL, "codec_out0"},
334 	{"ssp2 Tx", NULL, "codec_out1"},
335 	{"codec_in0", NULL, "ssp2 Rx"},
336 	{"codec_in1", NULL, "ssp2 Rx"},
337 
338 	{"AIF2 Playback", NULL, "ssp2 Tx"},
339 	{"ssp2 Rx", NULL, "AIF2 Capture"},
340 };
341 
342 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
343 	{"ssp0 Tx", NULL, "modem_out"},
344 	{"modem_in", NULL, "ssp0 Rx"},
345 
346 	{"AIF1 Playback", NULL, "ssp0 Tx"},
347 	{"ssp0 Rx", NULL, "AIF1 Capture"},
348 };
349 
350 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
351 	{"ssp0 Tx", NULL, "modem_out"},
352 	{"modem_in", NULL, "ssp0 Rx"},
353 
354 	{"AIF2 Playback", NULL, "ssp0 Tx"},
355 	{"ssp0 Rx", NULL, "AIF2 Capture"},
356 };
357 
358 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
359 	{"Speaker", NULL, "SPOLP"},
360 	{"Speaker", NULL, "SPOLN"},
361 	{"Speaker", NULL, "SPORP"},
362 	{"Speaker", NULL, "SPORN"},
363 };
364 
365 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
366 	{"Speaker", NULL, "SPOLP"},
367 	{"Speaker", NULL, "SPOLN"},
368 };
369 
370 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
371 	SOC_DAPM_PIN_SWITCH("Headphone"),
372 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
373 	SOC_DAPM_PIN_SWITCH("Internal Mic"),
374 	SOC_DAPM_PIN_SWITCH("Speaker"),
375 };
376 
377 static struct snd_soc_jack_pin rt5640_pins[] = {
378 	{
379 		.pin	= "Headphone",
380 		.mask	= SND_JACK_HEADPHONE,
381 	},
382 	{
383 		.pin	= "Headset Mic",
384 		.mask	= SND_JACK_MICROPHONE,
385 	},
386 };
387 
388 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
389 					struct snd_pcm_hw_params *params)
390 {
391 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
392 	struct snd_soc_dai *dai = rtd->codec_dai;
393 
394 	return byt_rt5640_prepare_and_enable_pll1(dai, params_rate(params));
395 }
396 
397 /* Please keep this list alphabetically sorted */
398 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
399 	{	/* Acer Iconia Tab 8 W1-810 */
400 		.matches = {
401 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
402 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Iconia W1-810"),
403 		},
404 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
405 					BYT_RT5640_JD_SRC_JD1_IN4P |
406 					BYT_RT5640_OVCD_TH_1500UA |
407 					BYT_RT5640_OVCD_SF_0P75 |
408 					BYT_RT5640_SSP0_AIF1 |
409 					BYT_RT5640_MCLK_EN),
410 	},
411 	{
412 		.matches = {
413 			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
414 			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
415 		},
416 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
417 						 BYT_RT5640_MCLK_EN |
418 						 BYT_RT5640_SSP0_AIF1),
419 
420 	},
421 	{
422 		.matches = {
423 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ARCHOS"),
424 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ARCHOS 80 Cesium"),
425 		},
426 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
427 					BYT_RT5640_MONO_SPEAKER |
428 					BYT_RT5640_SSP0_AIF1 |
429 					BYT_RT5640_MCLK_EN),
430 	},
431 	{
432 		.matches = {
433 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
434 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
435 		},
436 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
437 					BYT_RT5640_JD_SRC_JD2_IN4N |
438 					BYT_RT5640_OVCD_TH_2000UA |
439 					BYT_RT5640_OVCD_SF_0P75 |
440 					BYT_RT5640_MCLK_EN),
441 	},
442 	{
443 		.matches = {
444 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
445 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
446 		},
447 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
448 					BYT_RT5640_MONO_SPEAKER |
449 					BYT_RT5640_DIFF_MIC |
450 					BYT_RT5640_SSP0_AIF2 |
451 					BYT_RT5640_MCLK_EN),
452 	},
453 	{	/* Chuwi Vi8 (CWI506) */
454 		.matches = {
455 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"),
456 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "i86"),
457 			/* The above are too generic, also match BIOS info */
458 			DMI_MATCH(DMI_BIOS_VERSION, "CHUWI.D86JLBNR"),
459 		},
460 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
461 					BYT_RT5640_MONO_SPEAKER |
462 					BYT_RT5640_SSP0_AIF1 |
463 					BYT_RT5640_MCLK_EN),
464 	},
465 	{
466 		/* Chuwi Vi10 (CWI505) */
467 		.matches = {
468 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
469 			DMI_MATCH(DMI_BOARD_NAME, "BYT-PF02"),
470 			DMI_MATCH(DMI_SYS_VENDOR, "ilife"),
471 			DMI_MATCH(DMI_PRODUCT_NAME, "S165"),
472 		},
473 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
474 					BYT_RT5640_JD_SRC_JD2_IN4N |
475 					BYT_RT5640_OVCD_TH_2000UA |
476 					BYT_RT5640_OVCD_SF_0P75 |
477 					BYT_RT5640_DIFF_MIC |
478 					BYT_RT5640_SSP0_AIF1 |
479 					BYT_RT5640_MCLK_EN),
480 	},
481 	{
482 		.matches = {
483 			DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
484 			DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
485 		},
486 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP),
487 	},
488 	{	/* Connect Tablet 9 */
489 		.matches = {
490 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Connect"),
491 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Tablet 9"),
492 		},
493 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
494 					BYT_RT5640_MONO_SPEAKER |
495 					BYT_RT5640_SSP0_AIF1 |
496 					BYT_RT5640_MCLK_EN),
497 	},
498 	{
499 		.matches = {
500 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
501 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
502 		},
503 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
504 					BYT_RT5640_JD_SRC_JD2_IN4N |
505 					BYT_RT5640_OVCD_TH_2000UA |
506 					BYT_RT5640_OVCD_SF_0P75 |
507 					BYT_RT5640_MONO_SPEAKER |
508 					BYT_RT5640_MCLK_EN),
509 	},
510 	{
511 		.matches = {
512 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
513 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
514 		},
515 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
516 					BYT_RT5640_MCLK_EN),
517 	},
518 	{	/* HP Pavilion x2 10-n000nd */
519 		.matches = {
520 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
521 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP Pavilion x2 Detachable"),
522 		},
523 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
524 					BYT_RT5640_JD_SRC_JD2_IN4N |
525 					BYT_RT5640_OVCD_TH_1500UA |
526 					BYT_RT5640_OVCD_SF_0P75 |
527 					BYT_RT5640_SSP0_AIF1 |
528 					BYT_RT5640_MCLK_EN),
529 	},
530 	{	/* HP Stream 7 */
531 		.matches = {
532 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
533 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP Stream 7 Tablet"),
534 		},
535 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
536 					BYT_RT5640_MONO_SPEAKER |
537 					BYT_RT5640_JD_NOT_INV |
538 					BYT_RT5640_SSP0_AIF1 |
539 					BYT_RT5640_MCLK_EN),
540 	},
541 	{	/* I.T.Works TW891 */
542 		.matches = {
543 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
544 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
545 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
546 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
547 		},
548 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
549 					BYT_RT5640_MONO_SPEAKER |
550 					BYT_RT5640_SSP0_AIF1 |
551 					BYT_RT5640_MCLK_EN),
552 	},
553 	{	/* Lamina I8270 / T701BR.SE */
554 		.matches = {
555 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Lamina"),
556 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "T701BR.SE"),
557 		},
558 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
559 					BYT_RT5640_MONO_SPEAKER |
560 					BYT_RT5640_JD_NOT_INV |
561 					BYT_RT5640_SSP0_AIF1 |
562 					BYT_RT5640_MCLK_EN),
563 	},
564 	{	/* Lenovo Miix 2 8 */
565 		.matches = {
566 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
567 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "20326"),
568 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Hiking"),
569 		},
570 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
571 					BYT_RT5640_JD_SRC_JD2_IN4N |
572 					BYT_RT5640_OVCD_TH_2000UA |
573 					BYT_RT5640_OVCD_SF_0P75 |
574 					BYT_RT5640_MONO_SPEAKER |
575 					BYT_RT5640_MCLK_EN),
576 	},
577 	{	/* Linx Linx7 tablet */
578 		.matches = {
579 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LINX"),
580 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LINX7"),
581 		},
582 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
583 					BYT_RT5640_MONO_SPEAKER |
584 					BYT_RT5640_JD_NOT_INV |
585 					BYT_RT5640_SSP0_AIF1 |
586 					BYT_RT5640_MCLK_EN),
587 	},
588 	{	/* MSI S100 tablet */
589 		.matches = {
590 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Micro-Star International Co., Ltd."),
591 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "S100"),
592 		},
593 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
594 					BYT_RT5640_JD_SRC_JD2_IN4N |
595 					BYT_RT5640_OVCD_TH_2000UA |
596 					BYT_RT5640_OVCD_SF_0P75 |
597 					BYT_RT5640_MONO_SPEAKER |
598 					BYT_RT5640_DIFF_MIC |
599 					BYT_RT5640_MCLK_EN),
600 	},
601 	{	/* Nuvison/TMax TM800W560 */
602 		.matches = {
603 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TMAX"),
604 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TM800W560L"),
605 		},
606 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
607 					BYT_RT5640_JD_SRC_JD2_IN4N |
608 					BYT_RT5640_OVCD_TH_2000UA |
609 					BYT_RT5640_OVCD_SF_0P75 |
610 					BYT_RT5640_JD_NOT_INV |
611 					BYT_RT5640_DIFF_MIC |
612 					BYT_RT5640_SSP0_AIF1 |
613 					BYT_RT5640_MCLK_EN),
614 	},
615 	{	/* Onda v975w */
616 		.matches = {
617 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
618 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
619 			/* The above are too generic, also match BIOS info */
620 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "5.6.5"),
621 			DMI_EXACT_MATCH(DMI_BIOS_DATE, "07/25/2014"),
622 		},
623 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
624 					BYT_RT5640_JD_SRC_JD2_IN4N |
625 					BYT_RT5640_OVCD_TH_2000UA |
626 					BYT_RT5640_OVCD_SF_0P75 |
627 					BYT_RT5640_DIFF_MIC |
628 					BYT_RT5640_MCLK_EN),
629 	},
630 	{	/* Pipo W4 */
631 		.matches = {
632 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
633 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
634 			/* The above are too generic, also match BIOS info */
635 			DMI_MATCH(DMI_BIOS_VERSION, "V8L_WIN32_CHIPHD"),
636 		},
637 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
638 					BYT_RT5640_MONO_SPEAKER |
639 					BYT_RT5640_SSP0_AIF1 |
640 					BYT_RT5640_MCLK_EN),
641 	},
642 	{	/* Point of View Mobii TAB-P800W (V2.0) */
643 		.matches = {
644 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
645 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
646 			/* The above are too generic, also match BIOS info */
647 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "3BAIR1014"),
648 			DMI_EXACT_MATCH(DMI_BIOS_DATE, "10/24/2014"),
649 		},
650 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
651 					BYT_RT5640_JD_SRC_JD2_IN4N |
652 					BYT_RT5640_OVCD_TH_2000UA |
653 					BYT_RT5640_OVCD_SF_0P75 |
654 					BYT_RT5640_MONO_SPEAKER |
655 					BYT_RT5640_DIFF_MIC |
656 					BYT_RT5640_SSP0_AIF2 |
657 					BYT_RT5640_MCLK_EN),
658 	},
659 	{	/* Point of View Mobii TAB-P800W (V2.1) */
660 		.matches = {
661 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
662 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
663 			/* The above are too generic, also match BIOS info */
664 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "3BAIR1013"),
665 			DMI_EXACT_MATCH(DMI_BIOS_DATE, "08/22/2014"),
666 		},
667 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
668 					BYT_RT5640_JD_SRC_JD2_IN4N |
669 					BYT_RT5640_OVCD_TH_2000UA |
670 					BYT_RT5640_OVCD_SF_0P75 |
671 					BYT_RT5640_MONO_SPEAKER |
672 					BYT_RT5640_DIFF_MIC |
673 					BYT_RT5640_SSP0_AIF2 |
674 					BYT_RT5640_MCLK_EN),
675 	},
676 	{	/* Point of View Mobii TAB-P1005W-232 (V2.0) */
677 		.matches = {
678 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "POV"),
679 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "I102A"),
680 		},
681 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
682 					BYT_RT5640_JD_SRC_JD2_IN4N |
683 					BYT_RT5640_OVCD_TH_2000UA |
684 					BYT_RT5640_OVCD_SF_0P75 |
685 					BYT_RT5640_DIFF_MIC |
686 					BYT_RT5640_SSP0_AIF1 |
687 					BYT_RT5640_MCLK_EN),
688 	},
689 	{
690 		/* Prowise PT301 */
691 		.matches = {
692 			DMI_MATCH(DMI_SYS_VENDOR, "Prowise"),
693 			DMI_MATCH(DMI_PRODUCT_NAME, "PT301"),
694 		},
695 		.driver_data = (void *)(BYT_RT5640_IN1_MAP |
696 					BYT_RT5640_JD_SRC_JD2_IN4N |
697 					BYT_RT5640_OVCD_TH_2000UA |
698 					BYT_RT5640_OVCD_SF_0P75 |
699 					BYT_RT5640_DIFF_MIC |
700 					BYT_RT5640_SSP0_AIF1 |
701 					BYT_RT5640_MCLK_EN),
702 	},
703 	{
704 		.matches = {
705 			DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
706 			DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
707 		},
708 		.driver_data = (void *)(BYT_RT5640_IN3_MAP |
709 					BYT_RT5640_MCLK_EN |
710 					BYT_RT5640_SSP0_AIF1),
711 	},
712 	{	/* Toshiba Satellite Click Mini L9W-B */
713 		.matches = {
714 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
715 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SATELLITE Click Mini L9W-B"),
716 		},
717 		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
718 					BYT_RT5640_JD_SRC_JD2_IN4N |
719 					BYT_RT5640_OVCD_TH_1500UA |
720 					BYT_RT5640_OVCD_SF_0P75 |
721 					BYT_RT5640_SSP0_AIF1 |
722 					BYT_RT5640_MCLK_EN),
723 	},
724 	{	/* Catch-all for generic Insyde tablets, must be last */
725 		.matches = {
726 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
727 		},
728 		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
729 					BYT_RT5640_MCLK_EN |
730 					BYT_RT5640_SSP0_AIF1),
731 
732 	},
733 	{}
734 };
735 
736 /*
737  * Note this MUST be called before snd_soc_register_card(), so that the props
738  * are in place before the codec component driver's probe function parses them.
739  */
740 static int byt_rt5640_add_codec_device_props(const char *i2c_dev_name)
741 {
742 	struct property_entry props[MAX_NO_PROPS] = {};
743 	struct device *i2c_dev;
744 	int ret, cnt = 0;
745 
746 	i2c_dev = bus_find_device_by_name(&i2c_bus_type, NULL, i2c_dev_name);
747 	if (!i2c_dev)
748 		return -EPROBE_DEFER;
749 
750 	switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
751 	case BYT_RT5640_DMIC1_MAP:
752 		props[cnt++] = PROPERTY_ENTRY_U32("realtek,dmic1-data-pin",
753 						  RT5640_DMIC1_DATA_PIN_IN1P);
754 		break;
755 	case BYT_RT5640_DMIC2_MAP:
756 		props[cnt++] = PROPERTY_ENTRY_U32("realtek,dmic2-data-pin",
757 						  RT5640_DMIC2_DATA_PIN_IN1N);
758 		break;
759 	case BYT_RT5640_IN1_MAP:
760 		if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
761 			props[cnt++] =
762 				PROPERTY_ENTRY_BOOL("realtek,in1-differential");
763 		break;
764 	case BYT_RT5640_IN3_MAP:
765 		if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
766 			props[cnt++] =
767 				PROPERTY_ENTRY_BOOL("realtek,in3-differential");
768 		break;
769 	}
770 
771 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
772 		props[cnt++] = PROPERTY_ENTRY_U32(
773 				    "realtek,jack-detect-source",
774 				    BYT_RT5640_JDSRC(byt_rt5640_quirk));
775 
776 		props[cnt++] = PROPERTY_ENTRY_U32(
777 				    "realtek,over-current-threshold-microamp",
778 				    BYT_RT5640_OVCD_TH(byt_rt5640_quirk) * 100);
779 
780 		props[cnt++] = PROPERTY_ENTRY_U32(
781 				    "realtek,over-current-scale-factor",
782 				    BYT_RT5640_OVCD_SF(byt_rt5640_quirk));
783 	}
784 
785 	if (byt_rt5640_quirk & BYT_RT5640_JD_NOT_INV)
786 		props[cnt++] = PROPERTY_ENTRY_BOOL("realtek,jack-detect-not-inverted");
787 
788 	ret = device_add_properties(i2c_dev, props);
789 	put_device(i2c_dev);
790 
791 	return ret;
792 }
793 
794 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
795 {
796 	struct snd_soc_card *card = runtime->card;
797 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
798 	struct snd_soc_component *component = runtime->codec_dai->component;
799 	const struct snd_soc_dapm_route *custom_map;
800 	int num_routes;
801 	int ret;
802 
803 	card->dapm.idle_bias_off = true;
804 
805 	/* Start with RC clk for jack-detect (we disable MCLK below) */
806 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
807 		snd_soc_component_update_bits(component, RT5640_GLB_CLK,
808 			RT5640_SCLK_SRC_MASK, RT5640_SCLK_SRC_RCCLK);
809 
810 	rt5640_sel_asrc_clk_src(component,
811 				RT5640_DA_STEREO_FILTER |
812 				RT5640_DA_MONO_L_FILTER	|
813 				RT5640_DA_MONO_R_FILTER	|
814 				RT5640_AD_STEREO_FILTER	|
815 				RT5640_AD_MONO_L_FILTER	|
816 				RT5640_AD_MONO_R_FILTER,
817 				RT5640_CLK_SEL_ASRC);
818 
819 	ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
820 					ARRAY_SIZE(byt_rt5640_controls));
821 	if (ret) {
822 		dev_err(card->dev, "unable to add card controls\n");
823 		return ret;
824 	}
825 
826 	switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
827 	case BYT_RT5640_IN1_MAP:
828 		custom_map = byt_rt5640_intmic_in1_map;
829 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
830 		break;
831 	case BYT_RT5640_IN3_MAP:
832 		custom_map = byt_rt5640_intmic_in3_map;
833 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
834 		break;
835 	case BYT_RT5640_DMIC2_MAP:
836 		custom_map = byt_rt5640_intmic_dmic2_map;
837 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
838 		break;
839 	default:
840 		custom_map = byt_rt5640_intmic_dmic1_map;
841 		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
842 	}
843 
844 	ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
845 	if (ret)
846 		return ret;
847 
848 	if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
849 		ret = snd_soc_dapm_add_routes(&card->dapm,
850 					byt_rt5640_ssp2_aif2_map,
851 					ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
852 	} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
853 		ret = snd_soc_dapm_add_routes(&card->dapm,
854 					byt_rt5640_ssp0_aif1_map,
855 					ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
856 	} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
857 		ret = snd_soc_dapm_add_routes(&card->dapm,
858 					byt_rt5640_ssp0_aif2_map,
859 					ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
860 	} else {
861 		ret = snd_soc_dapm_add_routes(&card->dapm,
862 					byt_rt5640_ssp2_aif1_map,
863 					ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
864 	}
865 	if (ret)
866 		return ret;
867 
868 	if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
869 		ret = snd_soc_dapm_add_routes(&card->dapm,
870 					byt_rt5640_mono_spk_map,
871 					ARRAY_SIZE(byt_rt5640_mono_spk_map));
872 	} else {
873 		ret = snd_soc_dapm_add_routes(&card->dapm,
874 					byt_rt5640_stereo_spk_map,
875 					ARRAY_SIZE(byt_rt5640_stereo_spk_map));
876 	}
877 	if (ret)
878 		return ret;
879 
880 	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
881 	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
882 
883 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
884 		/*
885 		 * The firmware might enable the clock at
886 		 * boot (this information may or may not
887 		 * be reflected in the enable clock register).
888 		 * To change the rate we must disable the clock
889 		 * first to cover these cases. Due to common
890 		 * clock framework restrictions that do not allow
891 		 * to disable a clock that has not been enabled,
892 		 * we need to enable the clock first.
893 		 */
894 		ret = clk_prepare_enable(priv->mclk);
895 		if (!ret)
896 			clk_disable_unprepare(priv->mclk);
897 
898 		if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
899 			ret = clk_set_rate(priv->mclk, 25000000);
900 		else
901 			ret = clk_set_rate(priv->mclk, 19200000);
902 
903 		if (ret) {
904 			dev_err(card->dev, "unable to set MCLK rate\n");
905 			return ret;
906 		}
907 	}
908 
909 	if (BYT_RT5640_JDSRC(byt_rt5640_quirk)) {
910 		ret = snd_soc_card_jack_new(card, "Headset",
911 					    SND_JACK_HEADSET | SND_JACK_BTN_0,
912 					    &priv->jack, rt5640_pins,
913 					    ARRAY_SIZE(rt5640_pins));
914 		if (ret) {
915 			dev_err(card->dev, "Jack creation failed %d\n", ret);
916 			return ret;
917 		}
918 		snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0,
919 				 KEY_PLAYPAUSE);
920 		snd_soc_component_set_jack(component, &priv->jack, NULL);
921 	}
922 
923 	return 0;
924 }
925 
926 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
927 	.formats = SNDRV_PCM_FMTBIT_S24_LE,
928 	.rate_min = 48000,
929 	.rate_max = 48000,
930 	.channels_min = 2,
931 	.channels_max = 2,
932 };
933 
934 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
935 			    struct snd_pcm_hw_params *params)
936 {
937 	struct snd_interval *rate = hw_param_interval(params,
938 			SNDRV_PCM_HW_PARAM_RATE);
939 	struct snd_interval *channels = hw_param_interval(params,
940 						SNDRV_PCM_HW_PARAM_CHANNELS);
941 	int ret;
942 
943 	/* The DSP will covert the FE rate to 48k, stereo */
944 	rate->min = rate->max = 48000;
945 	channels->min = channels->max = 2;
946 
947 	if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
948 		(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
949 
950 		/* set SSP0 to 16-bit */
951 		params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
952 
953 		/*
954 		 * Default mode for SSP configuration is TDM 4 slot, override config
955 		 * with explicit setting to I2S 2ch 16-bit. The word length is set with
956 		 * dai_set_tdm_slot() since there is no other API exposed
957 		 */
958 		ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
959 					SND_SOC_DAIFMT_I2S     |
960 					SND_SOC_DAIFMT_NB_NF   |
961 					SND_SOC_DAIFMT_CBS_CFS
962 			);
963 		if (ret < 0) {
964 			dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
965 			return ret;
966 		}
967 
968 		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
969 		if (ret < 0) {
970 			dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
971 			return ret;
972 		}
973 
974 	} else {
975 
976 		/* set SSP2 to 24-bit */
977 		params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
978 
979 		/*
980 		 * Default mode for SSP configuration is TDM 4 slot, override config
981 		 * with explicit setting to I2S 2ch 24-bit. The word length is set with
982 		 * dai_set_tdm_slot() since there is no other API exposed
983 		 */
984 		ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
985 					SND_SOC_DAIFMT_I2S     |
986 					SND_SOC_DAIFMT_NB_NF   |
987 					SND_SOC_DAIFMT_CBS_CFS
988 			);
989 		if (ret < 0) {
990 			dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
991 			return ret;
992 		}
993 
994 		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
995 		if (ret < 0) {
996 			dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
997 			return ret;
998 		}
999 	}
1000 	return 0;
1001 }
1002 
1003 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
1004 {
1005 	return snd_pcm_hw_constraint_single(substream->runtime,
1006 			SNDRV_PCM_HW_PARAM_RATE, 48000);
1007 }
1008 
1009 static const struct snd_soc_ops byt_rt5640_aif1_ops = {
1010 	.startup = byt_rt5640_aif1_startup,
1011 };
1012 
1013 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
1014 	.hw_params = byt_rt5640_aif1_hw_params,
1015 };
1016 
1017 static struct snd_soc_dai_link byt_rt5640_dais[] = {
1018 	[MERR_DPCM_AUDIO] = {
1019 		.name = "Baytrail Audio Port",
1020 		.stream_name = "Baytrail Audio",
1021 		.cpu_dai_name = "media-cpu-dai",
1022 		.codec_dai_name = "snd-soc-dummy-dai",
1023 		.codec_name = "snd-soc-dummy",
1024 		.platform_name = "sst-mfld-platform",
1025 		.nonatomic = true,
1026 		.dynamic = 1,
1027 		.dpcm_playback = 1,
1028 		.dpcm_capture = 1,
1029 		.ops = &byt_rt5640_aif1_ops,
1030 	},
1031 	[MERR_DPCM_DEEP_BUFFER] = {
1032 		.name = "Deep-Buffer Audio Port",
1033 		.stream_name = "Deep-Buffer Audio",
1034 		.cpu_dai_name = "deepbuffer-cpu-dai",
1035 		.codec_dai_name = "snd-soc-dummy-dai",
1036 		.codec_name = "snd-soc-dummy",
1037 		.platform_name = "sst-mfld-platform",
1038 		.nonatomic = true,
1039 		.dynamic = 1,
1040 		.dpcm_playback = 1,
1041 		.ops = &byt_rt5640_aif1_ops,
1042 	},
1043 		/* back ends */
1044 	{
1045 		.name = "SSP2-Codec",
1046 		.id = 0,
1047 		.cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
1048 		.platform_name = "sst-mfld-platform",
1049 		.no_pcm = 1,
1050 		.codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
1051 		.codec_name = "i2c-10EC5640:00", /* overwritten with HID */
1052 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
1053 						| SND_SOC_DAIFMT_CBS_CFS,
1054 		.be_hw_params_fixup = byt_rt5640_codec_fixup,
1055 		.ignore_suspend = 1,
1056 		.nonatomic = true,
1057 		.dpcm_playback = 1,
1058 		.dpcm_capture = 1,
1059 		.init = byt_rt5640_init,
1060 		.ops = &byt_rt5640_be_ssp2_ops,
1061 	},
1062 };
1063 
1064 /* SoC card */
1065 static char byt_rt5640_codec_name[SND_ACPI_I2C_ID_LEN];
1066 static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
1067 static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
1068 static char byt_rt5640_long_name[40]; /* = "bytcr-rt5640-*-spk-*-mic" */
1069 
1070 static int byt_rt5640_suspend(struct snd_soc_card *card)
1071 {
1072 	struct snd_soc_component *component;
1073 
1074 	if (!BYT_RT5640_JDSRC(byt_rt5640_quirk))
1075 		return 0;
1076 
1077 	for_each_card_components(card, component) {
1078 		if (!strcmp(component->name, byt_rt5640_codec_name)) {
1079 			dev_dbg(component->dev, "disabling jack detect before suspend\n");
1080 			snd_soc_component_set_jack(component, NULL, NULL);
1081 			break;
1082 		}
1083 	}
1084 
1085 	return 0;
1086 }
1087 
1088 static int byt_rt5640_resume(struct snd_soc_card *card)
1089 {
1090 	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
1091 	struct snd_soc_component *component;
1092 
1093 	if (!BYT_RT5640_JDSRC(byt_rt5640_quirk))
1094 		return 0;
1095 
1096 	for_each_card_components(card, component) {
1097 		if (!strcmp(component->name, byt_rt5640_codec_name)) {
1098 			dev_dbg(component->dev, "re-enabling jack detect after resume\n");
1099 			snd_soc_component_set_jack(component, &priv->jack, NULL);
1100 			break;
1101 		}
1102 	}
1103 
1104 	return 0;
1105 }
1106 
1107 static struct snd_soc_card byt_rt5640_card = {
1108 	.name = "bytcr-rt5640",
1109 	.owner = THIS_MODULE,
1110 	.dai_link = byt_rt5640_dais,
1111 	.num_links = ARRAY_SIZE(byt_rt5640_dais),
1112 	.dapm_widgets = byt_rt5640_widgets,
1113 	.num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
1114 	.dapm_routes = byt_rt5640_audio_map,
1115 	.num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
1116 	.fully_routed = true,
1117 	.suspend_pre = byt_rt5640_suspend,
1118 	.resume_post = byt_rt5640_resume,
1119 };
1120 
1121 static bool is_valleyview(void)
1122 {
1123 	static const struct x86_cpu_id cpu_ids[] = {
1124 		{ X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
1125 		{}
1126 	};
1127 
1128 	if (!x86_match_cpu(cpu_ids))
1129 		return false;
1130 	return true;
1131 }
1132 
1133 struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
1134 	u64 aif_value;       /* 1: AIF1, 2: AIF2 */
1135 	u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
1136 };
1137 
1138 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
1139 {
1140 	const char * const map_name[] = { "dmic1", "dmic2", "in1", "in3" };
1141 	const struct dmi_system_id *dmi_id;
1142 	struct byt_rt5640_private *priv;
1143 	struct snd_soc_acpi_mach *mach;
1144 	const char *i2c_name = NULL;
1145 	int ret_val = 0;
1146 	int dai_index = 0;
1147 	int i;
1148 
1149 	is_bytcr = false;
1150 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
1151 	if (!priv)
1152 		return -ENOMEM;
1153 
1154 	/* register the soc card */
1155 	byt_rt5640_card.dev = &pdev->dev;
1156 	mach = byt_rt5640_card.dev->platform_data;
1157 	snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
1158 
1159 	/* fix index of codec dai */
1160 	for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
1161 		if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
1162 			dai_index = i;
1163 			break;
1164 		}
1165 	}
1166 
1167 	/* fixup codec name based on HID */
1168 	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
1169 	if (i2c_name) {
1170 		snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
1171 			"%s%s", "i2c-", i2c_name);
1172 
1173 		byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
1174 	}
1175 
1176 	/*
1177 	 * swap SSP0 if bytcr is detected
1178 	 * (will be overridden if DMI quirk is detected)
1179 	 */
1180 	if (is_valleyview()) {
1181 		if (mach->mach_params.acpi_ipc_irq_index == 0)
1182 			is_bytcr = true;
1183 	}
1184 
1185 	if (is_bytcr) {
1186 		/*
1187 		 * Baytrail CR platforms may have CHAN package in BIOS, try
1188 		 * to find relevant routing quirk based as done on Windows
1189 		 * platforms. We have to read the information directly from the
1190 		 * BIOS, at this stage the card is not created and the links
1191 		 * with the codec driver/pdata are non-existent
1192 		 */
1193 
1194 		struct acpi_chan_package chan_package;
1195 
1196 		/* format specified: 2 64-bit integers */
1197 		struct acpi_buffer format = {sizeof("NN"), "NN"};
1198 		struct acpi_buffer state = {0, NULL};
1199 		struct snd_soc_acpi_package_context pkg_ctx;
1200 		bool pkg_found = false;
1201 
1202 		state.length = sizeof(chan_package);
1203 		state.pointer = &chan_package;
1204 
1205 		pkg_ctx.name = "CHAN";
1206 		pkg_ctx.length = 2;
1207 		pkg_ctx.format = &format;
1208 		pkg_ctx.state = &state;
1209 		pkg_ctx.data_valid = false;
1210 
1211 		pkg_found = snd_soc_acpi_find_package_from_hid(mach->id,
1212 							       &pkg_ctx);
1213 		if (pkg_found) {
1214 			if (chan_package.aif_value == 1) {
1215 				dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
1216 				byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
1217 			} else  if (chan_package.aif_value == 2) {
1218 				dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
1219 				byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
1220 			} else {
1221 				dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
1222 				pkg_found = false;
1223 			}
1224 		}
1225 
1226 		if (!pkg_found) {
1227 			/* no BIOS indications, assume SSP0-AIF2 connection */
1228 			byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
1229 		}
1230 
1231 		/* change defaults for Baytrail-CR capture */
1232 		byt_rt5640_quirk |= BYTCR_INPUT_DEFAULTS;
1233 	} else {
1234 		byt_rt5640_quirk |= BYT_RT5640_DMIC1_MAP |
1235 				    BYT_RT5640_JD_SRC_JD2_IN4N |
1236 				    BYT_RT5640_OVCD_TH_2000UA |
1237 				    BYT_RT5640_OVCD_SF_0P75;
1238 	}
1239 
1240 	/* check quirks before creating card */
1241 	dmi_id = dmi_first_match(byt_rt5640_quirk_table);
1242 	if (dmi_id)
1243 		byt_rt5640_quirk = (unsigned long)dmi_id->driver_data;
1244 	if (quirk_override) {
1245 		dev_info(&pdev->dev, "Overriding quirk 0x%x => 0x%x\n",
1246 			 (unsigned int)byt_rt5640_quirk, quirk_override);
1247 		byt_rt5640_quirk = quirk_override;
1248 	}
1249 
1250 	/* Must be called before register_card, also see declaration comment. */
1251 	ret_val = byt_rt5640_add_codec_device_props(byt_rt5640_codec_name);
1252 	if (ret_val)
1253 		return ret_val;
1254 
1255 	log_quirks(&pdev->dev);
1256 
1257 	if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
1258 	    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
1259 
1260 		/* fixup codec aif name */
1261 		snprintf(byt_rt5640_codec_aif_name,
1262 			sizeof(byt_rt5640_codec_aif_name),
1263 			"%s", "rt5640-aif2");
1264 
1265 		byt_rt5640_dais[dai_index].codec_dai_name =
1266 			byt_rt5640_codec_aif_name;
1267 	}
1268 
1269 	if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
1270 	    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
1271 
1272 		/* fixup cpu dai name name */
1273 		snprintf(byt_rt5640_cpu_dai_name,
1274 			sizeof(byt_rt5640_cpu_dai_name),
1275 			"%s", "ssp0-port");
1276 
1277 		byt_rt5640_dais[dai_index].cpu_dai_name =
1278 			byt_rt5640_cpu_dai_name;
1279 	}
1280 
1281 	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
1282 		priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
1283 		if (IS_ERR(priv->mclk)) {
1284 			ret_val = PTR_ERR(priv->mclk);
1285 
1286 			dev_err(&pdev->dev,
1287 				"Failed to get MCLK from pmc_plt_clk_3: %d\n",
1288 				ret_val);
1289 
1290 			/*
1291 			 * Fall back to bit clock usage for -ENOENT (clock not
1292 			 * available likely due to missing dependencies), bail
1293 			 * for all other errors, including -EPROBE_DEFER
1294 			 */
1295 			if (ret_val != -ENOENT)
1296 				return ret_val;
1297 			byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
1298 		}
1299 	}
1300 
1301 	snprintf(byt_rt5640_long_name, sizeof(byt_rt5640_long_name),
1302 		 "bytcr-rt5640-%s-spk-%s-mic",
1303 		 (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) ?
1304 			"mono" : "stereo",
1305 		 map_name[BYT_RT5640_MAP(byt_rt5640_quirk)]);
1306 	byt_rt5640_card.long_name = byt_rt5640_long_name;
1307 
1308 	ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
1309 
1310 	if (ret_val) {
1311 		dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
1312 			ret_val);
1313 		return ret_val;
1314 	}
1315 	platform_set_drvdata(pdev, &byt_rt5640_card);
1316 	return ret_val;
1317 }
1318 
1319 static struct platform_driver snd_byt_rt5640_mc_driver = {
1320 	.driver = {
1321 		.name = "bytcr_rt5640",
1322 	},
1323 	.probe = snd_byt_rt5640_mc_probe,
1324 };
1325 
1326 module_platform_driver(snd_byt_rt5640_mc_driver);
1327 
1328 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
1329 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
1330 MODULE_LICENSE("GPL v2");
1331 MODULE_ALIAS("platform:bytcr_rt5640");
1332