xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision 48af5f942aaf877ce0bf64b559ccff5a15eed376)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *
4  *  hda_intel.c - Implementation of primary alsa driver code base
5  *                for Intel HD Audio.
6  *
7  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
8  *
9  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
10  *                     PeiSen Hou <pshou@realtek.com.tw>
11  *
12  *  CONTACTS:
13  *
14  *  Matt Jared		matt.jared@intel.com
15  *  Andy Kopp		andy.kopp@intel.com
16  *  Dan Kogan		dan.d.kogan@intel.com
17  *
18  *  CHANGES:
19  *
20  *  2004.12.01	Major rewrite by tiwai, merged the work of pshou
21  */
22 
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/moduleparam.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/pci.h>
32 #include <linux/mutex.h>
33 #include <linux/io.h>
34 #include <linux/pm_runtime.h>
35 #include <linux/clocksource.h>
36 #include <linux/time.h>
37 #include <linux/completion.h>
38 #include <linux/acpi.h>
39 #include <linux/pgtable.h>
40 
41 #ifdef CONFIG_X86
42 /* for snoop control */
43 #include <asm/set_memory.h>
44 #include <asm/cpufeature.h>
45 #endif
46 #include <sound/core.h>
47 #include <sound/initval.h>
48 #include <sound/hdaudio.h>
49 #include <sound/hda_i915.h>
50 #include <sound/intel-dsp-config.h>
51 #include <linux/vgaarb.h>
52 #include <linux/vga_switcheroo.h>
53 #include <linux/firmware.h>
54 #include <sound/hda_codec.h>
55 #include "hda_controller.h"
56 #include "hda_intel.h"
57 
58 #define CREATE_TRACE_POINTS
59 #include "hda_intel_trace.h"
60 
61 /* position fix mode */
62 enum {
63 	POS_FIX_AUTO,
64 	POS_FIX_LPIB,
65 	POS_FIX_POSBUF,
66 	POS_FIX_VIACOMBO,
67 	POS_FIX_COMBO,
68 	POS_FIX_SKL,
69 	POS_FIX_FIFO,
70 };
71 
72 /* Defines for ATI HD Audio support in SB450 south bridge */
73 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
74 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
75 
76 /* Defines for Nvidia HDA support */
77 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
78 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
79 #define NVIDIA_HDA_ISTRM_COH          0x4d
80 #define NVIDIA_HDA_OSTRM_COH          0x4c
81 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
82 
83 /* Defines for Intel SCH HDA snoop control */
84 #define INTEL_HDA_CGCTL	 0x48
85 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
86 #define INTEL_SCH_HDA_DEVC      0x78
87 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
88 
89 /* Define VIA HD Audio Device ID*/
90 #define VIA_HDAC_DEVICE_ID		0x3288
91 
92 /* max number of SDs */
93 /* ICH, ATI and VIA have 4 playback and 4 capture */
94 #define ICH6_NUM_CAPTURE	4
95 #define ICH6_NUM_PLAYBACK	4
96 
97 /* ULI has 6 playback and 5 capture */
98 #define ULI_NUM_CAPTURE		5
99 #define ULI_NUM_PLAYBACK	6
100 
101 /* ATI HDMI may have up to 8 playbacks and 0 capture */
102 #define ATIHDMI_NUM_CAPTURE	0
103 #define ATIHDMI_NUM_PLAYBACK	8
104 
105 /* TERA has 4 playback and 3 capture */
106 #define TERA_NUM_CAPTURE	3
107 #define TERA_NUM_PLAYBACK	4
108 
109 
110 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
111 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
112 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
113 static char *model[SNDRV_CARDS];
114 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
115 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
116 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
117 static int probe_only[SNDRV_CARDS];
118 static int jackpoll_ms[SNDRV_CARDS];
119 static int single_cmd = -1;
120 static int enable_msi = -1;
121 #ifdef CONFIG_SND_HDA_PATCH_LOADER
122 static char *patch[SNDRV_CARDS];
123 #endif
124 #ifdef CONFIG_SND_HDA_INPUT_BEEP
125 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
126 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
127 #endif
128 static bool dmic_detect = 1;
129 
130 module_param_array(index, int, NULL, 0444);
131 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
132 module_param_array(id, charp, NULL, 0444);
133 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
134 module_param_array(enable, bool, NULL, 0444);
135 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
136 module_param_array(model, charp, NULL, 0444);
137 MODULE_PARM_DESC(model, "Use the given board model.");
138 module_param_array(position_fix, int, NULL, 0444);
139 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
140 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
141 module_param_array(bdl_pos_adj, int, NULL, 0644);
142 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
143 module_param_array(probe_mask, int, NULL, 0444);
144 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
145 module_param_array(probe_only, int, NULL, 0444);
146 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
147 module_param_array(jackpoll_ms, int, NULL, 0444);
148 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
149 module_param(single_cmd, bint, 0444);
150 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
151 		 "(for debugging only).");
152 module_param(enable_msi, bint, 0444);
153 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
154 #ifdef CONFIG_SND_HDA_PATCH_LOADER
155 module_param_array(patch, charp, NULL, 0444);
156 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
157 #endif
158 #ifdef CONFIG_SND_HDA_INPUT_BEEP
159 module_param_array(beep_mode, bool, NULL, 0444);
160 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
161 			    "(0=off, 1=on) (default=1).");
162 #endif
163 module_param(dmic_detect, bool, 0444);
164 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
165 			     "(0=off, 1=on) (default=1); "
166 		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
167 
168 #ifdef CONFIG_PM
169 static int param_set_xint(const char *val, const struct kernel_param *kp);
170 static const struct kernel_param_ops param_ops_xint = {
171 	.set = param_set_xint,
172 	.get = param_get_int,
173 };
174 #define param_check_xint param_check_int
175 
176 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
177 module_param(power_save, xint, 0644);
178 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
179 		 "(in second, 0 = disable).");
180 
181 static bool pm_blacklist = true;
182 module_param(pm_blacklist, bool, 0644);
183 MODULE_PARM_DESC(pm_blacklist, "Enable power-management blacklist");
184 
185 /* reset the HD-audio controller in power save mode.
186  * this may give more power-saving, but will take longer time to
187  * wake up.
188  */
189 static bool power_save_controller = 1;
190 module_param(power_save_controller, bool, 0644);
191 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
192 #else
193 #define power_save	0
194 #endif /* CONFIG_PM */
195 
196 static int align_buffer_size = -1;
197 module_param(align_buffer_size, bint, 0644);
198 MODULE_PARM_DESC(align_buffer_size,
199 		"Force buffer and period sizes to be multiple of 128 bytes.");
200 
201 #ifdef CONFIG_X86
202 static int hda_snoop = -1;
203 module_param_named(snoop, hda_snoop, bint, 0444);
204 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
205 #else
206 #define hda_snoop		true
207 #endif
208 
209 
210 MODULE_LICENSE("GPL");
211 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
212 			 "{Intel, ICH6M},"
213 			 "{Intel, ICH7},"
214 			 "{Intel, ESB2},"
215 			 "{Intel, ICH8},"
216 			 "{Intel, ICH9},"
217 			 "{Intel, ICH10},"
218 			 "{Intel, PCH},"
219 			 "{Intel, CPT},"
220 			 "{Intel, PPT},"
221 			 "{Intel, LPT},"
222 			 "{Intel, LPT_LP},"
223 			 "{Intel, WPT_LP},"
224 			 "{Intel, SPT},"
225 			 "{Intel, SPT_LP},"
226 			 "{Intel, HPT},"
227 			 "{Intel, PBG},"
228 			 "{Intel, SCH},"
229 			 "{ATI, SB450},"
230 			 "{ATI, SB600},"
231 			 "{ATI, RS600},"
232 			 "{ATI, RS690},"
233 			 "{ATI, RS780},"
234 			 "{ATI, R600},"
235 			 "{ATI, RV630},"
236 			 "{ATI, RV610},"
237 			 "{ATI, RV670},"
238 			 "{ATI, RV635},"
239 			 "{ATI, RV620},"
240 			 "{ATI, RV770},"
241 			 "{VIA, VT8251},"
242 			 "{VIA, VT8237A},"
243 			 "{SiS, SIS966},"
244 			 "{ULI, M5461}}");
245 MODULE_DESCRIPTION("Intel HDA driver");
246 
247 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
248 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
249 #define SUPPORT_VGA_SWITCHEROO
250 #endif
251 #endif
252 
253 
254 /*
255  */
256 
257 /* driver types */
258 enum {
259 	AZX_DRIVER_ICH,
260 	AZX_DRIVER_PCH,
261 	AZX_DRIVER_SCH,
262 	AZX_DRIVER_SKL,
263 	AZX_DRIVER_HDMI,
264 	AZX_DRIVER_ATI,
265 	AZX_DRIVER_ATIHDMI,
266 	AZX_DRIVER_ATIHDMI_NS,
267 	AZX_DRIVER_VIA,
268 	AZX_DRIVER_SIS,
269 	AZX_DRIVER_ULI,
270 	AZX_DRIVER_NVIDIA,
271 	AZX_DRIVER_TERA,
272 	AZX_DRIVER_CTX,
273 	AZX_DRIVER_CTHDA,
274 	AZX_DRIVER_CMEDIA,
275 	AZX_DRIVER_ZHAOXIN,
276 	AZX_DRIVER_GENERIC,
277 	AZX_NUM_DRIVERS, /* keep this as last entry */
278 };
279 
280 #define azx_get_snoop_type(chip) \
281 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
282 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
283 
284 /* quirks for old Intel chipsets */
285 #define AZX_DCAPS_INTEL_ICH \
286 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
287 
288 /* quirks for Intel PCH */
289 #define AZX_DCAPS_INTEL_PCH_BASE \
290 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
291 	 AZX_DCAPS_SNOOP_TYPE(SCH))
292 
293 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
294 #define AZX_DCAPS_INTEL_PCH_NOPM \
295 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
296 
297 /* PCH for HSW/BDW; with runtime PM */
298 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
299 #define AZX_DCAPS_INTEL_PCH \
300 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
301 
302 /* HSW HDMI */
303 #define AZX_DCAPS_INTEL_HASWELL \
304 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
305 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
306 	 AZX_DCAPS_SNOOP_TYPE(SCH))
307 
308 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
309 #define AZX_DCAPS_INTEL_BROADWELL \
310 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
311 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
312 	 AZX_DCAPS_SNOOP_TYPE(SCH))
313 
314 #define AZX_DCAPS_INTEL_BAYTRAIL \
315 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
316 
317 #define AZX_DCAPS_INTEL_BRASWELL \
318 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
319 	 AZX_DCAPS_I915_COMPONENT)
320 
321 #define AZX_DCAPS_INTEL_SKYLAKE \
322 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
323 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
324 
325 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
326 
327 /* quirks for ATI SB / AMD Hudson */
328 #define AZX_DCAPS_PRESET_ATI_SB \
329 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
330 	 AZX_DCAPS_SNOOP_TYPE(ATI))
331 
332 /* quirks for ATI/AMD HDMI */
333 #define AZX_DCAPS_PRESET_ATI_HDMI \
334 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
335 	 AZX_DCAPS_NO_MSI64)
336 
337 /* quirks for ATI HDMI with snoop off */
338 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
339 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
340 
341 /* quirks for AMD SB */
342 #define AZX_DCAPS_PRESET_AMD_SB \
343 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
344 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)
345 
346 /* quirks for Nvidia */
347 #define AZX_DCAPS_PRESET_NVIDIA \
348 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
349 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
350 
351 #define AZX_DCAPS_PRESET_CTHDA \
352 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
353 	 AZX_DCAPS_NO_64BIT |\
354 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
355 
356 /*
357  * vga_switcheroo support
358  */
359 #ifdef SUPPORT_VGA_SWITCHEROO
360 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
361 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
362 #else
363 #define use_vga_switcheroo(chip)	0
364 #define needs_eld_notify_link(chip)	false
365 #endif
366 
367 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
368 					((pci)->device == 0x0c0c) || \
369 					((pci)->device == 0x0d0c) || \
370 					((pci)->device == 0x160c))
371 
372 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
373 
374 static const char * const driver_short_names[] = {
375 	[AZX_DRIVER_ICH] = "HDA Intel",
376 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
377 	[AZX_DRIVER_SCH] = "HDA Intel MID",
378 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
379 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
380 	[AZX_DRIVER_ATI] = "HDA ATI SB",
381 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
382 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
383 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
384 	[AZX_DRIVER_SIS] = "HDA SIS966",
385 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
386 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
387 	[AZX_DRIVER_TERA] = "HDA Teradici",
388 	[AZX_DRIVER_CTX] = "HDA Creative",
389 	[AZX_DRIVER_CTHDA] = "HDA Creative",
390 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
391 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
392 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
393 };
394 
395 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
396 static void set_default_power_save(struct azx *chip);
397 
398 /*
399  * initialize the PCI registers
400  */
401 /* update bits in a PCI register byte */
402 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
403 			    unsigned char mask, unsigned char val)
404 {
405 	unsigned char data;
406 
407 	pci_read_config_byte(pci, reg, &data);
408 	data &= ~mask;
409 	data |= (val & mask);
410 	pci_write_config_byte(pci, reg, data);
411 }
412 
413 static void azx_init_pci(struct azx *chip)
414 {
415 	int snoop_type = azx_get_snoop_type(chip);
416 
417 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
418 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
419 	 * Ensuring these bits are 0 clears playback static on some HD Audio
420 	 * codecs.
421 	 * The PCI register TCSEL is defined in the Intel manuals.
422 	 */
423 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
424 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
425 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
426 	}
427 
428 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
429 	 * we need to enable snoop.
430 	 */
431 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
432 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
433 			azx_snoop(chip));
434 		update_pci_byte(chip->pci,
435 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
436 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
437 	}
438 
439 	/* For NVIDIA HDA, enable snoop */
440 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
441 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
442 			azx_snoop(chip));
443 		update_pci_byte(chip->pci,
444 				NVIDIA_HDA_TRANSREG_ADDR,
445 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
446 		update_pci_byte(chip->pci,
447 				NVIDIA_HDA_ISTRM_COH,
448 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
449 		update_pci_byte(chip->pci,
450 				NVIDIA_HDA_OSTRM_COH,
451 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
452 	}
453 
454 	/* Enable SCH/PCH snoop if needed */
455 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
456 		unsigned short snoop;
457 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
458 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
459 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
460 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
461 			if (!azx_snoop(chip))
462 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
463 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
464 			pci_read_config_word(chip->pci,
465 				INTEL_SCH_HDA_DEVC, &snoop);
466 		}
467 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
468 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
469 			"Disabled" : "Enabled");
470         }
471 }
472 
473 /*
474  * In BXT-P A0, HD-Audio DMA requests is later than expected,
475  * and makes an audio stream sensitive to system latencies when
476  * 24/32 bits are playing.
477  * Adjusting threshold of DMA fifo to force the DMA request
478  * sooner to improve latency tolerance at the expense of power.
479  */
480 static void bxt_reduce_dma_latency(struct azx *chip)
481 {
482 	u32 val;
483 
484 	val = azx_readl(chip, VS_EM4L);
485 	val &= (0x3 << 20);
486 	azx_writel(chip, VS_EM4L, val);
487 }
488 
489 /*
490  * ML_LCAP bits:
491  *  bit 0: 6 MHz Supported
492  *  bit 1: 12 MHz Supported
493  *  bit 2: 24 MHz Supported
494  *  bit 3: 48 MHz Supported
495  *  bit 4: 96 MHz Supported
496  *  bit 5: 192 MHz Supported
497  */
498 static int intel_get_lctl_scf(struct azx *chip)
499 {
500 	struct hdac_bus *bus = azx_bus(chip);
501 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
502 	u32 val, t;
503 	int i;
504 
505 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
506 
507 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
508 		t = preferred_bits[i];
509 		if (val & (1 << t))
510 			return t;
511 	}
512 
513 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
514 	return 0;
515 }
516 
517 static int intel_ml_lctl_set_power(struct azx *chip, int state)
518 {
519 	struct hdac_bus *bus = azx_bus(chip);
520 	u32 val;
521 	int timeout;
522 
523 	/*
524 	 * the codecs are sharing the first link setting by default
525 	 * If other links are enabled for stream, they need similar fix
526 	 */
527 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
528 	val &= ~AZX_MLCTL_SPA;
529 	val |= state << AZX_MLCTL_SPA_SHIFT;
530 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
531 	/* wait for CPA */
532 	timeout = 50;
533 	while (timeout) {
534 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
535 		    AZX_MLCTL_CPA) == (state << AZX_MLCTL_CPA_SHIFT))
536 			return 0;
537 		timeout--;
538 		udelay(10);
539 	}
540 
541 	return -1;
542 }
543 
544 static void intel_init_lctl(struct azx *chip)
545 {
546 	struct hdac_bus *bus = azx_bus(chip);
547 	u32 val;
548 	int ret;
549 
550 	/* 0. check lctl register value is correct or not */
551 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
552 	/* if SCF is already set, let's use it */
553 	if ((val & ML_LCTL_SCF_MASK) != 0)
554 		return;
555 
556 	/*
557 	 * Before operating on SPA, CPA must match SPA.
558 	 * Any deviation may result in undefined behavior.
559 	 */
560 	if (((val & AZX_MLCTL_SPA) >> AZX_MLCTL_SPA_SHIFT) !=
561 		((val & AZX_MLCTL_CPA) >> AZX_MLCTL_CPA_SHIFT))
562 		return;
563 
564 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
565 	ret = intel_ml_lctl_set_power(chip, 0);
566 	udelay(100);
567 	if (ret)
568 		goto set_spa;
569 
570 	/* 2. update SCF to select a properly audio clock*/
571 	val &= ~ML_LCTL_SCF_MASK;
572 	val |= intel_get_lctl_scf(chip);
573 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
574 
575 set_spa:
576 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
577 	intel_ml_lctl_set_power(chip, 1);
578 	udelay(100);
579 }
580 
581 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
582 {
583 	struct hdac_bus *bus = azx_bus(chip);
584 	struct pci_dev *pci = chip->pci;
585 	u32 val;
586 
587 	snd_hdac_set_codec_wakeup(bus, true);
588 	if (chip->driver_type == AZX_DRIVER_SKL) {
589 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
590 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
591 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
592 	}
593 	azx_init_chip(chip, full_reset);
594 	if (chip->driver_type == AZX_DRIVER_SKL) {
595 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
596 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
597 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
598 	}
599 
600 	snd_hdac_set_codec_wakeup(bus, false);
601 
602 	/* reduce dma latency to avoid noise */
603 	if (IS_BXT(pci))
604 		bxt_reduce_dma_latency(chip);
605 
606 	if (bus->mlcap != NULL)
607 		intel_init_lctl(chip);
608 }
609 
610 /* calculate runtime delay from LPIB */
611 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
612 				   unsigned int pos)
613 {
614 	struct snd_pcm_substream *substream = azx_dev->core.substream;
615 	int stream = substream->stream;
616 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
617 	int delay;
618 
619 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
620 		delay = pos - lpib_pos;
621 	else
622 		delay = lpib_pos - pos;
623 	if (delay < 0) {
624 		if (delay >= azx_dev->core.delay_negative_threshold)
625 			delay = 0;
626 		else
627 			delay += azx_dev->core.bufsize;
628 	}
629 
630 	if (delay >= azx_dev->core.period_bytes) {
631 		dev_info(chip->card->dev,
632 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
633 			 delay, azx_dev->core.period_bytes);
634 		delay = 0;
635 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
636 		chip->get_delay[stream] = NULL;
637 	}
638 
639 	return bytes_to_frames(substream->runtime, delay);
640 }
641 
642 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
643 
644 /* called from IRQ */
645 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
646 {
647 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
648 	int ok;
649 
650 	ok = azx_position_ok(chip, azx_dev);
651 	if (ok == 1) {
652 		azx_dev->irq_pending = 0;
653 		return ok;
654 	} else if (ok == 0) {
655 		/* bogus IRQ, process it later */
656 		azx_dev->irq_pending = 1;
657 		schedule_work(&hda->irq_pending_work);
658 	}
659 	return 0;
660 }
661 
662 #define display_power(chip, enable) \
663 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
664 
665 /*
666  * Check whether the current DMA position is acceptable for updating
667  * periods.  Returns non-zero if it's OK.
668  *
669  * Many HD-audio controllers appear pretty inaccurate about
670  * the update-IRQ timing.  The IRQ is issued before actually the
671  * data is processed.  So, we need to process it afterwords in a
672  * workqueue.
673  */
674 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
675 {
676 	struct snd_pcm_substream *substream = azx_dev->core.substream;
677 	int stream = substream->stream;
678 	u32 wallclk;
679 	unsigned int pos;
680 
681 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
682 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
683 		return -1;	/* bogus (too early) interrupt */
684 
685 	if (chip->get_position[stream])
686 		pos = chip->get_position[stream](chip, azx_dev);
687 	else { /* use the position buffer as default */
688 		pos = azx_get_pos_posbuf(chip, azx_dev);
689 		if (!pos || pos == (u32)-1) {
690 			dev_info(chip->card->dev,
691 				 "Invalid position buffer, using LPIB read method instead.\n");
692 			chip->get_position[stream] = azx_get_pos_lpib;
693 			if (chip->get_position[0] == azx_get_pos_lpib &&
694 			    chip->get_position[1] == azx_get_pos_lpib)
695 				azx_bus(chip)->use_posbuf = false;
696 			pos = azx_get_pos_lpib(chip, azx_dev);
697 			chip->get_delay[stream] = NULL;
698 		} else {
699 			chip->get_position[stream] = azx_get_pos_posbuf;
700 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
701 				chip->get_delay[stream] = azx_get_delay_from_lpib;
702 		}
703 	}
704 
705 	if (pos >= azx_dev->core.bufsize)
706 		pos = 0;
707 
708 	if (WARN_ONCE(!azx_dev->core.period_bytes,
709 		      "hda-intel: zero azx_dev->period_bytes"))
710 		return -1; /* this shouldn't happen! */
711 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
712 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
713 		/* NG - it's below the first next period boundary */
714 		return chip->bdl_pos_adj ? 0 : -1;
715 	azx_dev->core.start_wallclk += wallclk;
716 	return 1; /* OK, it's fine */
717 }
718 
719 /*
720  * The work for pending PCM period updates.
721  */
722 static void azx_irq_pending_work(struct work_struct *work)
723 {
724 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
725 	struct azx *chip = &hda->chip;
726 	struct hdac_bus *bus = azx_bus(chip);
727 	struct hdac_stream *s;
728 	int pending, ok;
729 
730 	if (!hda->irq_pending_warned) {
731 		dev_info(chip->card->dev,
732 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
733 			 chip->card->number);
734 		hda->irq_pending_warned = 1;
735 	}
736 
737 	for (;;) {
738 		pending = 0;
739 		spin_lock_irq(&bus->reg_lock);
740 		list_for_each_entry(s, &bus->stream_list, list) {
741 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
742 			if (!azx_dev->irq_pending ||
743 			    !s->substream ||
744 			    !s->running)
745 				continue;
746 			ok = azx_position_ok(chip, azx_dev);
747 			if (ok > 0) {
748 				azx_dev->irq_pending = 0;
749 				spin_unlock(&bus->reg_lock);
750 				snd_pcm_period_elapsed(s->substream);
751 				spin_lock(&bus->reg_lock);
752 			} else if (ok < 0) {
753 				pending = 0;	/* too early */
754 			} else
755 				pending++;
756 		}
757 		spin_unlock_irq(&bus->reg_lock);
758 		if (!pending)
759 			return;
760 		msleep(1);
761 	}
762 }
763 
764 /* clear irq_pending flags and assure no on-going workq */
765 static void azx_clear_irq_pending(struct azx *chip)
766 {
767 	struct hdac_bus *bus = azx_bus(chip);
768 	struct hdac_stream *s;
769 
770 	spin_lock_irq(&bus->reg_lock);
771 	list_for_each_entry(s, &bus->stream_list, list) {
772 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
773 		azx_dev->irq_pending = 0;
774 	}
775 	spin_unlock_irq(&bus->reg_lock);
776 }
777 
778 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
779 {
780 	struct hdac_bus *bus = azx_bus(chip);
781 
782 	if (request_irq(chip->pci->irq, azx_interrupt,
783 			chip->msi ? 0 : IRQF_SHARED,
784 			chip->card->irq_descr, chip)) {
785 		dev_err(chip->card->dev,
786 			"unable to grab IRQ %d, disabling device\n",
787 			chip->pci->irq);
788 		if (do_disconnect)
789 			snd_card_disconnect(chip->card);
790 		return -1;
791 	}
792 	bus->irq = chip->pci->irq;
793 	chip->card->sync_irq = bus->irq;
794 	pci_intx(chip->pci, !chip->msi);
795 	return 0;
796 }
797 
798 /* get the current DMA position with correction on VIA chips */
799 static unsigned int azx_via_get_position(struct azx *chip,
800 					 struct azx_dev *azx_dev)
801 {
802 	unsigned int link_pos, mini_pos, bound_pos;
803 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
804 	unsigned int fifo_size;
805 
806 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
807 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
808 		/* Playback, no problem using link position */
809 		return link_pos;
810 	}
811 
812 	/* Capture */
813 	/* For new chipset,
814 	 * use mod to get the DMA position just like old chipset
815 	 */
816 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
817 	mod_dma_pos %= azx_dev->core.period_bytes;
818 
819 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
820 
821 	if (azx_dev->insufficient) {
822 		/* Link position never gather than FIFO size */
823 		if (link_pos <= fifo_size)
824 			return 0;
825 
826 		azx_dev->insufficient = 0;
827 	}
828 
829 	if (link_pos <= fifo_size)
830 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
831 	else
832 		mini_pos = link_pos - fifo_size;
833 
834 	/* Find nearest previous boudary */
835 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
836 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
837 	if (mod_link_pos >= fifo_size)
838 		bound_pos = link_pos - mod_link_pos;
839 	else if (mod_dma_pos >= mod_mini_pos)
840 		bound_pos = mini_pos - mod_mini_pos;
841 	else {
842 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
843 		if (bound_pos >= azx_dev->core.bufsize)
844 			bound_pos = 0;
845 	}
846 
847 	/* Calculate real DMA position we want */
848 	return bound_pos + mod_dma_pos;
849 }
850 
851 #define AMD_FIFO_SIZE	32
852 
853 /* get the current DMA position with FIFO size correction */
854 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
855 {
856 	struct snd_pcm_substream *substream = azx_dev->core.substream;
857 	struct snd_pcm_runtime *runtime = substream->runtime;
858 	unsigned int pos, delay;
859 
860 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
861 	if (!runtime)
862 		return pos;
863 
864 	runtime->delay = AMD_FIFO_SIZE;
865 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
866 	if (azx_dev->insufficient) {
867 		if (pos < delay) {
868 			delay = pos;
869 			runtime->delay = bytes_to_frames(runtime, pos);
870 		} else {
871 			azx_dev->insufficient = 0;
872 		}
873 	}
874 
875 	/* correct the DMA position for capture stream */
876 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
877 		if (pos < delay)
878 			pos += azx_dev->core.bufsize;
879 		pos -= delay;
880 	}
881 
882 	return pos;
883 }
884 
885 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
886 				   unsigned int pos)
887 {
888 	struct snd_pcm_substream *substream = azx_dev->core.substream;
889 
890 	/* just read back the calculated value in the above */
891 	return substream->runtime->delay;
892 }
893 
894 static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
895 					 struct azx_dev *azx_dev)
896 {
897 	return _snd_hdac_chip_readl(azx_bus(chip),
898 				    AZX_REG_VS_SDXDPIB_XBASE +
899 				    (AZX_REG_VS_SDXDPIB_XINTERVAL *
900 				     azx_dev->core.index));
901 }
902 
903 /* get the current DMA position with correction on SKL+ chips */
904 static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
905 {
906 	/* DPIB register gives a more accurate position for playback */
907 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
908 		return azx_skl_get_dpib_pos(chip, azx_dev);
909 
910 	/* For capture, we need to read posbuf, but it requires a delay
911 	 * for the possible boundary overlap; the read of DPIB fetches the
912 	 * actual posbuf
913 	 */
914 	udelay(20);
915 	azx_skl_get_dpib_pos(chip, azx_dev);
916 	return azx_get_pos_posbuf(chip, azx_dev);
917 }
918 
919 #ifdef CONFIG_PM
920 static DEFINE_MUTEX(card_list_lock);
921 static LIST_HEAD(card_list);
922 
923 static void azx_add_card_list(struct azx *chip)
924 {
925 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
926 	mutex_lock(&card_list_lock);
927 	list_add(&hda->list, &card_list);
928 	mutex_unlock(&card_list_lock);
929 }
930 
931 static void azx_del_card_list(struct azx *chip)
932 {
933 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
934 	mutex_lock(&card_list_lock);
935 	list_del_init(&hda->list);
936 	mutex_unlock(&card_list_lock);
937 }
938 
939 /* trigger power-save check at writing parameter */
940 static int param_set_xint(const char *val, const struct kernel_param *kp)
941 {
942 	struct hda_intel *hda;
943 	struct azx *chip;
944 	int prev = power_save;
945 	int ret = param_set_int(val, kp);
946 
947 	if (ret || prev == power_save)
948 		return ret;
949 
950 	mutex_lock(&card_list_lock);
951 	list_for_each_entry(hda, &card_list, list) {
952 		chip = &hda->chip;
953 		if (!hda->probe_continued || chip->disabled)
954 			continue;
955 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
956 	}
957 	mutex_unlock(&card_list_lock);
958 	return 0;
959 }
960 
961 /*
962  * power management
963  */
964 static bool azx_is_pm_ready(struct snd_card *card)
965 {
966 	struct azx *chip;
967 	struct hda_intel *hda;
968 
969 	if (!card)
970 		return false;
971 	chip = card->private_data;
972 	hda = container_of(chip, struct hda_intel, chip);
973 	if (chip->disabled || hda->init_failed || !chip->running)
974 		return false;
975 	return true;
976 }
977 
978 static void __azx_runtime_suspend(struct azx *chip)
979 {
980 	azx_stop_chip(chip);
981 	azx_enter_link_reset(chip);
982 	azx_clear_irq_pending(chip);
983 	display_power(chip, false);
984 }
985 
986 static void __azx_runtime_resume(struct azx *chip, bool from_rt)
987 {
988 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
989 	struct hdac_bus *bus = azx_bus(chip);
990 	struct hda_codec *codec;
991 	int status;
992 
993 	display_power(chip, true);
994 	if (hda->need_i915_power)
995 		snd_hdac_i915_set_bclk(bus);
996 
997 	/* Read STATESTS before controller reset */
998 	status = azx_readw(chip, STATESTS);
999 
1000 	azx_init_pci(chip);
1001 	hda_intel_init_chip(chip, true);
1002 
1003 	if (status && from_rt) {
1004 		list_for_each_codec(codec, &chip->bus)
1005 			if (!codec->relaxed_resume &&
1006 			    (status & (1 << codec->addr)))
1007 				schedule_delayed_work(&codec->jackpoll_work,
1008 						      codec->jackpoll_interval);
1009 	}
1010 
1011 	/* power down again for link-controlled chips */
1012 	if (!hda->need_i915_power)
1013 		display_power(chip, false);
1014 }
1015 
1016 #ifdef CONFIG_PM_SLEEP
1017 static int azx_suspend(struct device *dev)
1018 {
1019 	struct snd_card *card = dev_get_drvdata(dev);
1020 	struct azx *chip;
1021 	struct hdac_bus *bus;
1022 
1023 	if (!azx_is_pm_ready(card))
1024 		return 0;
1025 
1026 	chip = card->private_data;
1027 	bus = azx_bus(chip);
1028 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1029 	pm_runtime_force_suspend(dev);
1030 	if (bus->irq >= 0) {
1031 		free_irq(bus->irq, chip);
1032 		bus->irq = -1;
1033 		chip->card->sync_irq = -1;
1034 	}
1035 
1036 	if (chip->msi)
1037 		pci_disable_msi(chip->pci);
1038 
1039 	trace_azx_suspend(chip);
1040 	return 0;
1041 }
1042 
1043 static int azx_resume(struct device *dev)
1044 {
1045 	struct snd_card *card = dev_get_drvdata(dev);
1046 	struct azx *chip;
1047 
1048 	if (!azx_is_pm_ready(card))
1049 		return 0;
1050 
1051 	chip = card->private_data;
1052 	if (chip->msi)
1053 		if (pci_enable_msi(chip->pci) < 0)
1054 			chip->msi = 0;
1055 	if (azx_acquire_irq(chip, 1) < 0)
1056 		return -EIO;
1057 
1058 	pm_runtime_force_resume(dev);
1059 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1060 
1061 	trace_azx_resume(chip);
1062 	return 0;
1063 }
1064 
1065 /* put codec down to D3 at hibernation for Intel SKL+;
1066  * otherwise BIOS may still access the codec and screw up the driver
1067  */
1068 static int azx_freeze_noirq(struct device *dev)
1069 {
1070 	struct snd_card *card = dev_get_drvdata(dev);
1071 	struct azx *chip = card->private_data;
1072 	struct pci_dev *pci = to_pci_dev(dev);
1073 
1074 	if (!azx_is_pm_ready(card))
1075 		return 0;
1076 	if (chip->driver_type == AZX_DRIVER_SKL)
1077 		pci_set_power_state(pci, PCI_D3hot);
1078 
1079 	return 0;
1080 }
1081 
1082 static int azx_thaw_noirq(struct device *dev)
1083 {
1084 	struct snd_card *card = dev_get_drvdata(dev);
1085 	struct azx *chip = card->private_data;
1086 	struct pci_dev *pci = to_pci_dev(dev);
1087 
1088 	if (!azx_is_pm_ready(card))
1089 		return 0;
1090 	if (chip->driver_type == AZX_DRIVER_SKL)
1091 		pci_set_power_state(pci, PCI_D0);
1092 
1093 	return 0;
1094 }
1095 #endif /* CONFIG_PM_SLEEP */
1096 
1097 static int azx_runtime_suspend(struct device *dev)
1098 {
1099 	struct snd_card *card = dev_get_drvdata(dev);
1100 	struct azx *chip;
1101 
1102 	if (!azx_is_pm_ready(card))
1103 		return 0;
1104 	chip = card->private_data;
1105 
1106 	/* enable controller wake up event */
1107 	if (snd_power_get_state(card) == SNDRV_CTL_POWER_D0) {
1108 		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
1109 			   STATESTS_INT_MASK);
1110 	}
1111 
1112 	__azx_runtime_suspend(chip);
1113 	trace_azx_runtime_suspend(chip);
1114 	return 0;
1115 }
1116 
1117 static int azx_runtime_resume(struct device *dev)
1118 {
1119 	struct snd_card *card = dev_get_drvdata(dev);
1120 	struct azx *chip;
1121 	bool from_rt = snd_power_get_state(card) == SNDRV_CTL_POWER_D0;
1122 
1123 	if (!azx_is_pm_ready(card))
1124 		return 0;
1125 	chip = card->private_data;
1126 	__azx_runtime_resume(chip, from_rt);
1127 
1128 	/* disable controller Wake Up event*/
1129 	if (from_rt) {
1130 		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1131 			   ~STATESTS_INT_MASK);
1132 	}
1133 
1134 	trace_azx_runtime_resume(chip);
1135 	return 0;
1136 }
1137 
1138 static int azx_runtime_idle(struct device *dev)
1139 {
1140 	struct snd_card *card = dev_get_drvdata(dev);
1141 	struct azx *chip;
1142 	struct hda_intel *hda;
1143 
1144 	if (!card)
1145 		return 0;
1146 
1147 	chip = card->private_data;
1148 	hda = container_of(chip, struct hda_intel, chip);
1149 	if (chip->disabled || hda->init_failed)
1150 		return 0;
1151 
1152 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1153 	    azx_bus(chip)->codec_powered || !chip->running)
1154 		return -EBUSY;
1155 
1156 	/* ELD notification gets broken when HD-audio bus is off */
1157 	if (needs_eld_notify_link(chip))
1158 		return -EBUSY;
1159 
1160 	return 0;
1161 }
1162 
1163 static const struct dev_pm_ops azx_pm = {
1164 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1165 #ifdef CONFIG_PM_SLEEP
1166 	.freeze_noirq = azx_freeze_noirq,
1167 	.thaw_noirq = azx_thaw_noirq,
1168 #endif
1169 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1170 };
1171 
1172 #define AZX_PM_OPS	&azx_pm
1173 #else
1174 #define azx_add_card_list(chip) /* NOP */
1175 #define azx_del_card_list(chip) /* NOP */
1176 #define AZX_PM_OPS	NULL
1177 #endif /* CONFIG_PM */
1178 
1179 
1180 static int azx_probe_continue(struct azx *chip);
1181 
1182 #ifdef SUPPORT_VGA_SWITCHEROO
1183 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1184 
1185 static void azx_vs_set_state(struct pci_dev *pci,
1186 			     enum vga_switcheroo_state state)
1187 {
1188 	struct snd_card *card = pci_get_drvdata(pci);
1189 	struct azx *chip = card->private_data;
1190 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1191 	struct hda_codec *codec;
1192 	bool disabled;
1193 
1194 	wait_for_completion(&hda->probe_wait);
1195 	if (hda->init_failed)
1196 		return;
1197 
1198 	disabled = (state == VGA_SWITCHEROO_OFF);
1199 	if (chip->disabled == disabled)
1200 		return;
1201 
1202 	if (!hda->probe_continued) {
1203 		chip->disabled = disabled;
1204 		if (!disabled) {
1205 			dev_info(chip->card->dev,
1206 				 "Start delayed initialization\n");
1207 			if (azx_probe_continue(chip) < 0)
1208 				dev_err(chip->card->dev, "initialization error\n");
1209 		}
1210 	} else {
1211 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1212 			 disabled ? "Disabling" : "Enabling");
1213 		if (disabled) {
1214 			list_for_each_codec(codec, &chip->bus) {
1215 				pm_runtime_suspend(hda_codec_dev(codec));
1216 				pm_runtime_disable(hda_codec_dev(codec));
1217 			}
1218 			pm_runtime_suspend(card->dev);
1219 			pm_runtime_disable(card->dev);
1220 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1221 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1222 			 * put ourselves there */
1223 			pci->current_state = PCI_D3cold;
1224 			chip->disabled = true;
1225 			if (snd_hda_lock_devices(&chip->bus))
1226 				dev_warn(chip->card->dev,
1227 					 "Cannot lock devices!\n");
1228 		} else {
1229 			snd_hda_unlock_devices(&chip->bus);
1230 			chip->disabled = false;
1231 			pm_runtime_enable(card->dev);
1232 			list_for_each_codec(codec, &chip->bus) {
1233 				pm_runtime_enable(hda_codec_dev(codec));
1234 				pm_runtime_resume(hda_codec_dev(codec));
1235 			}
1236 		}
1237 	}
1238 }
1239 
1240 static bool azx_vs_can_switch(struct pci_dev *pci)
1241 {
1242 	struct snd_card *card = pci_get_drvdata(pci);
1243 	struct azx *chip = card->private_data;
1244 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1245 
1246 	wait_for_completion(&hda->probe_wait);
1247 	if (hda->init_failed)
1248 		return false;
1249 	if (chip->disabled || !hda->probe_continued)
1250 		return true;
1251 	if (snd_hda_lock_devices(&chip->bus))
1252 		return false;
1253 	snd_hda_unlock_devices(&chip->bus);
1254 	return true;
1255 }
1256 
1257 /*
1258  * The discrete GPU cannot power down unless the HDA controller runtime
1259  * suspends, so activate runtime PM on codecs even if power_save == 0.
1260  */
1261 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1262 {
1263 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1264 	struct hda_codec *codec;
1265 
1266 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1267 		list_for_each_codec(codec, &chip->bus)
1268 			codec->auto_runtime_pm = 1;
1269 		/* reset the power save setup */
1270 		if (chip->running)
1271 			set_default_power_save(chip);
1272 	}
1273 }
1274 
1275 static void azx_vs_gpu_bound(struct pci_dev *pci,
1276 			     enum vga_switcheroo_client_id client_id)
1277 {
1278 	struct snd_card *card = pci_get_drvdata(pci);
1279 	struct azx *chip = card->private_data;
1280 
1281 	if (client_id == VGA_SWITCHEROO_DIS)
1282 		chip->bus.keep_power = 0;
1283 	setup_vga_switcheroo_runtime_pm(chip);
1284 }
1285 
1286 static void init_vga_switcheroo(struct azx *chip)
1287 {
1288 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1289 	struct pci_dev *p = get_bound_vga(chip->pci);
1290 	struct pci_dev *parent;
1291 	if (p) {
1292 		dev_info(chip->card->dev,
1293 			 "Handle vga_switcheroo audio client\n");
1294 		hda->use_vga_switcheroo = 1;
1295 
1296 		/* cleared in either gpu_bound op or codec probe, or when its
1297 		 * upstream port has _PR3 (i.e. dGPU).
1298 		 */
1299 		parent = pci_upstream_bridge(p);
1300 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1301 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1302 		pci_dev_put(p);
1303 	}
1304 }
1305 
1306 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1307 	.set_gpu_state = azx_vs_set_state,
1308 	.can_switch = azx_vs_can_switch,
1309 	.gpu_bound = azx_vs_gpu_bound,
1310 };
1311 
1312 static int register_vga_switcheroo(struct azx *chip)
1313 {
1314 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1315 	struct pci_dev *p;
1316 	int err;
1317 
1318 	if (!hda->use_vga_switcheroo)
1319 		return 0;
1320 
1321 	p = get_bound_vga(chip->pci);
1322 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1323 	pci_dev_put(p);
1324 
1325 	if (err < 0)
1326 		return err;
1327 	hda->vga_switcheroo_registered = 1;
1328 
1329 	return 0;
1330 }
1331 #else
1332 #define init_vga_switcheroo(chip)		/* NOP */
1333 #define register_vga_switcheroo(chip)		0
1334 #define check_hdmi_disabled(pci)	false
1335 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1336 #endif /* SUPPORT_VGA_SWITCHER */
1337 
1338 /*
1339  * destructor
1340  */
1341 static void azx_free(struct azx *chip)
1342 {
1343 	struct pci_dev *pci = chip->pci;
1344 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1345 	struct hdac_bus *bus = azx_bus(chip);
1346 
1347 	if (hda->freed)
1348 		return;
1349 
1350 	if (azx_has_pm_runtime(chip) && chip->running)
1351 		pm_runtime_get_noresume(&pci->dev);
1352 	chip->running = 0;
1353 
1354 	azx_del_card_list(chip);
1355 
1356 	hda->init_failed = 1; /* to be sure */
1357 	complete_all(&hda->probe_wait);
1358 
1359 	if (use_vga_switcheroo(hda)) {
1360 		if (chip->disabled && hda->probe_continued)
1361 			snd_hda_unlock_devices(&chip->bus);
1362 		if (hda->vga_switcheroo_registered)
1363 			vga_switcheroo_unregister_client(chip->pci);
1364 	}
1365 
1366 	if (bus->chip_init) {
1367 		azx_clear_irq_pending(chip);
1368 		azx_stop_all_streams(chip);
1369 		azx_stop_chip(chip);
1370 	}
1371 
1372 	if (bus->irq >= 0)
1373 		free_irq(bus->irq, (void*)chip);
1374 	if (chip->msi)
1375 		pci_disable_msi(chip->pci);
1376 	iounmap(bus->remap_addr);
1377 
1378 	azx_free_stream_pages(chip);
1379 	azx_free_streams(chip);
1380 	snd_hdac_bus_exit(bus);
1381 
1382 	if (chip->region_requested)
1383 		pci_release_regions(chip->pci);
1384 
1385 	pci_disable_device(chip->pci);
1386 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1387 	release_firmware(chip->fw);
1388 #endif
1389 	display_power(chip, false);
1390 
1391 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1392 		snd_hdac_i915_exit(bus);
1393 
1394 	hda->freed = 1;
1395 }
1396 
1397 static int azx_dev_disconnect(struct snd_device *device)
1398 {
1399 	struct azx *chip = device->device_data;
1400 	struct hdac_bus *bus = azx_bus(chip);
1401 
1402 	chip->bus.shutdown = 1;
1403 	cancel_work_sync(&bus->unsol_work);
1404 
1405 	return 0;
1406 }
1407 
1408 static int azx_dev_free(struct snd_device *device)
1409 {
1410 	azx_free(device->device_data);
1411 	return 0;
1412 }
1413 
1414 #ifdef SUPPORT_VGA_SWITCHEROO
1415 #ifdef CONFIG_ACPI
1416 /* ATPX is in the integrated GPU's namespace */
1417 static bool atpx_present(void)
1418 {
1419 	struct pci_dev *pdev = NULL;
1420 	acpi_handle dhandle, atpx_handle;
1421 	acpi_status status;
1422 
1423 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1424 		dhandle = ACPI_HANDLE(&pdev->dev);
1425 		if (dhandle) {
1426 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1427 			if (!ACPI_FAILURE(status)) {
1428 				pci_dev_put(pdev);
1429 				return true;
1430 			}
1431 		}
1432 	}
1433 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1434 		dhandle = ACPI_HANDLE(&pdev->dev);
1435 		if (dhandle) {
1436 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1437 			if (!ACPI_FAILURE(status)) {
1438 				pci_dev_put(pdev);
1439 				return true;
1440 			}
1441 		}
1442 	}
1443 	return false;
1444 }
1445 #else
1446 static bool atpx_present(void)
1447 {
1448 	return false;
1449 }
1450 #endif
1451 
1452 /*
1453  * Check of disabled HDMI controller by vga_switcheroo
1454  */
1455 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1456 {
1457 	struct pci_dev *p;
1458 
1459 	/* check only discrete GPU */
1460 	switch (pci->vendor) {
1461 	case PCI_VENDOR_ID_ATI:
1462 	case PCI_VENDOR_ID_AMD:
1463 		if (pci->devfn == 1) {
1464 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1465 							pci->bus->number, 0);
1466 			if (p) {
1467 				/* ATPX is in the integrated GPU's ACPI namespace
1468 				 * rather than the dGPU's namespace. However,
1469 				 * the dGPU is the one who is involved in
1470 				 * vgaswitcheroo.
1471 				 */
1472 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1473 				    atpx_present())
1474 					return p;
1475 				pci_dev_put(p);
1476 			}
1477 		}
1478 		break;
1479 	case PCI_VENDOR_ID_NVIDIA:
1480 		if (pci->devfn == 1) {
1481 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1482 							pci->bus->number, 0);
1483 			if (p) {
1484 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1485 					return p;
1486 				pci_dev_put(p);
1487 			}
1488 		}
1489 		break;
1490 	}
1491 	return NULL;
1492 }
1493 
1494 static bool check_hdmi_disabled(struct pci_dev *pci)
1495 {
1496 	bool vga_inactive = false;
1497 	struct pci_dev *p = get_bound_vga(pci);
1498 
1499 	if (p) {
1500 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1501 			vga_inactive = true;
1502 		pci_dev_put(p);
1503 	}
1504 	return vga_inactive;
1505 }
1506 #endif /* SUPPORT_VGA_SWITCHEROO */
1507 
1508 /*
1509  * white/black-listing for position_fix
1510  */
1511 static const struct snd_pci_quirk position_fix_list[] = {
1512 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1514 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1519 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1520 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1521 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1522 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1523 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1524 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1525 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1526 	{}
1527 };
1528 
1529 static int check_position_fix(struct azx *chip, int fix)
1530 {
1531 	const struct snd_pci_quirk *q;
1532 
1533 	switch (fix) {
1534 	case POS_FIX_AUTO:
1535 	case POS_FIX_LPIB:
1536 	case POS_FIX_POSBUF:
1537 	case POS_FIX_VIACOMBO:
1538 	case POS_FIX_COMBO:
1539 	case POS_FIX_SKL:
1540 	case POS_FIX_FIFO:
1541 		return fix;
1542 	}
1543 
1544 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1545 	if (q) {
1546 		dev_info(chip->card->dev,
1547 			 "position_fix set to %d for device %04x:%04x\n",
1548 			 q->value, q->subvendor, q->subdevice);
1549 		return q->value;
1550 	}
1551 
1552 	/* Check VIA/ATI HD Audio Controller exist */
1553 	if (chip->driver_type == AZX_DRIVER_VIA) {
1554 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1555 		return POS_FIX_VIACOMBO;
1556 	}
1557 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1558 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1559 		return POS_FIX_FIFO;
1560 	}
1561 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1562 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1563 		return POS_FIX_LPIB;
1564 	}
1565 	if (chip->driver_type == AZX_DRIVER_SKL) {
1566 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1567 		return POS_FIX_SKL;
1568 	}
1569 	return POS_FIX_AUTO;
1570 }
1571 
1572 static void assign_position_fix(struct azx *chip, int fix)
1573 {
1574 	static const azx_get_pos_callback_t callbacks[] = {
1575 		[POS_FIX_AUTO] = NULL,
1576 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1577 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1578 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1579 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1580 		[POS_FIX_SKL] = azx_get_pos_skl,
1581 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1582 	};
1583 
1584 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1585 
1586 	/* combo mode uses LPIB only for playback */
1587 	if (fix == POS_FIX_COMBO)
1588 		chip->get_position[1] = NULL;
1589 
1590 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1591 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1592 		chip->get_delay[0] = chip->get_delay[1] =
1593 			azx_get_delay_from_lpib;
1594 	}
1595 
1596 	if (fix == POS_FIX_FIFO)
1597 		chip->get_delay[0] = chip->get_delay[1] =
1598 			azx_get_delay_from_fifo;
1599 }
1600 
1601 /*
1602  * black-lists for probe_mask
1603  */
1604 static const struct snd_pci_quirk probe_mask_list[] = {
1605 	/* Thinkpad often breaks the controller communication when accessing
1606 	 * to the non-working (or non-existing) modem codec slot.
1607 	 */
1608 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1609 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1610 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1611 	/* broken BIOS */
1612 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1613 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1614 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1615 	/* forced codec slots */
1616 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1617 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1618 	/* WinFast VP200 H (Teradici) user reported broken communication */
1619 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1620 	{}
1621 };
1622 
1623 #define AZX_FORCE_CODEC_MASK	0x100
1624 
1625 static void check_probe_mask(struct azx *chip, int dev)
1626 {
1627 	const struct snd_pci_quirk *q;
1628 
1629 	chip->codec_probe_mask = probe_mask[dev];
1630 	if (chip->codec_probe_mask == -1) {
1631 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1632 		if (q) {
1633 			dev_info(chip->card->dev,
1634 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1635 				 q->value, q->subvendor, q->subdevice);
1636 			chip->codec_probe_mask = q->value;
1637 		}
1638 	}
1639 
1640 	/* check forced option */
1641 	if (chip->codec_probe_mask != -1 &&
1642 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1643 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1644 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1645 			 (int)azx_bus(chip)->codec_mask);
1646 	}
1647 }
1648 
1649 /*
1650  * white/black-list for enable_msi
1651  */
1652 static const struct snd_pci_quirk msi_black_list[] = {
1653 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1654 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1655 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1656 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1657 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1658 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1659 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1660 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1661 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1662 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1663 	{}
1664 };
1665 
1666 static void check_msi(struct azx *chip)
1667 {
1668 	const struct snd_pci_quirk *q;
1669 
1670 	if (enable_msi >= 0) {
1671 		chip->msi = !!enable_msi;
1672 		return;
1673 	}
1674 	chip->msi = 1;	/* enable MSI as default */
1675 	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1676 	if (q) {
1677 		dev_info(chip->card->dev,
1678 			 "msi for device %04x:%04x set to %d\n",
1679 			 q->subvendor, q->subdevice, q->value);
1680 		chip->msi = q->value;
1681 		return;
1682 	}
1683 
1684 	/* NVidia chipsets seem to cause troubles with MSI */
1685 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1686 		dev_info(chip->card->dev, "Disabling MSI\n");
1687 		chip->msi = 0;
1688 	}
1689 }
1690 
1691 /* check the snoop mode availability */
1692 static void azx_check_snoop_available(struct azx *chip)
1693 {
1694 	int snoop = hda_snoop;
1695 
1696 	if (snoop >= 0) {
1697 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1698 			 snoop ? "snoop" : "non-snoop");
1699 		chip->snoop = snoop;
1700 		chip->uc_buffer = !snoop;
1701 		return;
1702 	}
1703 
1704 	snoop = true;
1705 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1706 	    chip->driver_type == AZX_DRIVER_VIA) {
1707 		/* force to non-snoop mode for a new VIA controller
1708 		 * when BIOS is set
1709 		 */
1710 		u8 val;
1711 		pci_read_config_byte(chip->pci, 0x42, &val);
1712 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1713 				      chip->pci->revision == 0x20))
1714 			snoop = false;
1715 	}
1716 
1717 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1718 		snoop = false;
1719 
1720 	chip->snoop = snoop;
1721 	if (!snoop) {
1722 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1723 		/* C-Media requires non-cached pages only for CORB/RIRB */
1724 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1725 			chip->uc_buffer = true;
1726 	}
1727 }
1728 
1729 static void azx_probe_work(struct work_struct *work)
1730 {
1731 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1732 	azx_probe_continue(&hda->chip);
1733 }
1734 
1735 static int default_bdl_pos_adj(struct azx *chip)
1736 {
1737 	/* some exceptions: Atoms seem problematic with value 1 */
1738 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1739 		switch (chip->pci->device) {
1740 		case 0x0f04: /* Baytrail */
1741 		case 0x2284: /* Braswell */
1742 			return 32;
1743 		}
1744 	}
1745 
1746 	switch (chip->driver_type) {
1747 	case AZX_DRIVER_ICH:
1748 	case AZX_DRIVER_PCH:
1749 		return 1;
1750 	default:
1751 		return 32;
1752 	}
1753 }
1754 
1755 /*
1756  * constructor
1757  */
1758 static const struct hda_controller_ops pci_hda_ops;
1759 
1760 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1761 		      int dev, unsigned int driver_caps,
1762 		      struct azx **rchip)
1763 {
1764 	static const struct snd_device_ops ops = {
1765 		.dev_disconnect = azx_dev_disconnect,
1766 		.dev_free = azx_dev_free,
1767 	};
1768 	struct hda_intel *hda;
1769 	struct azx *chip;
1770 	int err;
1771 
1772 	*rchip = NULL;
1773 
1774 	err = pci_enable_device(pci);
1775 	if (err < 0)
1776 		return err;
1777 
1778 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1779 	if (!hda) {
1780 		pci_disable_device(pci);
1781 		return -ENOMEM;
1782 	}
1783 
1784 	chip = &hda->chip;
1785 	mutex_init(&chip->open_mutex);
1786 	chip->card = card;
1787 	chip->pci = pci;
1788 	chip->ops = &pci_hda_ops;
1789 	chip->driver_caps = driver_caps;
1790 	chip->driver_type = driver_caps & 0xff;
1791 	check_msi(chip);
1792 	chip->dev_index = dev;
1793 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1794 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1795 	INIT_LIST_HEAD(&chip->pcm_list);
1796 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1797 	INIT_LIST_HEAD(&hda->list);
1798 	init_vga_switcheroo(chip);
1799 	init_completion(&hda->probe_wait);
1800 
1801 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1802 
1803 	check_probe_mask(chip, dev);
1804 
1805 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1806 		chip->fallback_to_single_cmd = 1;
1807 	else /* explicitly set to single_cmd or not */
1808 		chip->single_cmd = single_cmd;
1809 
1810 	azx_check_snoop_available(chip);
1811 
1812 	if (bdl_pos_adj[dev] < 0)
1813 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1814 	else
1815 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1816 
1817 	err = azx_bus_init(chip, model[dev]);
1818 	if (err < 0) {
1819 		pci_disable_device(pci);
1820 		return err;
1821 	}
1822 
1823 	/* use the non-cached pages in non-snoop mode */
1824 	if (!azx_snoop(chip))
1825 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_UC;
1826 
1827 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1828 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1829 		chip->bus.core.needs_damn_long_delay = 1;
1830 	}
1831 
1832 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1833 	if (err < 0) {
1834 		dev_err(card->dev, "Error creating device [card]!\n");
1835 		azx_free(chip);
1836 		return err;
1837 	}
1838 
1839 	/* continue probing in work context as may trigger request module */
1840 	INIT_WORK(&hda->probe_work, azx_probe_work);
1841 
1842 	*rchip = chip;
1843 
1844 	return 0;
1845 }
1846 
1847 static int azx_first_init(struct azx *chip)
1848 {
1849 	int dev = chip->dev_index;
1850 	struct pci_dev *pci = chip->pci;
1851 	struct snd_card *card = chip->card;
1852 	struct hdac_bus *bus = azx_bus(chip);
1853 	int err;
1854 	unsigned short gcap;
1855 	unsigned int dma_bits = 64;
1856 
1857 #if BITS_PER_LONG != 64
1858 	/* Fix up base address on ULI M5461 */
1859 	if (chip->driver_type == AZX_DRIVER_ULI) {
1860 		u16 tmp3;
1861 		pci_read_config_word(pci, 0x40, &tmp3);
1862 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1863 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1864 	}
1865 #endif
1866 
1867 	err = pci_request_regions(pci, "ICH HD audio");
1868 	if (err < 0)
1869 		return err;
1870 	chip->region_requested = 1;
1871 
1872 	bus->addr = pci_resource_start(pci, 0);
1873 	bus->remap_addr = pci_ioremap_bar(pci, 0);
1874 	if (bus->remap_addr == NULL) {
1875 		dev_err(card->dev, "ioremap error\n");
1876 		return -ENXIO;
1877 	}
1878 
1879 	if (chip->driver_type == AZX_DRIVER_SKL)
1880 		snd_hdac_bus_parse_capabilities(bus);
1881 
1882 	/*
1883 	 * Some Intel CPUs has always running timer (ART) feature and
1884 	 * controller may have Global time sync reporting capability, so
1885 	 * check both of these before declaring synchronized time reporting
1886 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1887 	 */
1888 	chip->gts_present = false;
1889 
1890 #ifdef CONFIG_X86
1891 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1892 		chip->gts_present = true;
1893 #endif
1894 
1895 	if (chip->msi) {
1896 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1897 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1898 			pci->no_64bit_msi = true;
1899 		}
1900 		if (pci_enable_msi(pci) < 0)
1901 			chip->msi = 0;
1902 	}
1903 
1904 	pci_set_master(pci);
1905 
1906 	gcap = azx_readw(chip, GCAP);
1907 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1908 
1909 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1910 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1911 		dma_bits = 40;
1912 
1913 	/* disable SB600 64bit support for safety */
1914 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1915 		struct pci_dev *p_smbus;
1916 		dma_bits = 40;
1917 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1918 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1919 					 NULL);
1920 		if (p_smbus) {
1921 			if (p_smbus->revision < 0x30)
1922 				gcap &= ~AZX_GCAP_64OK;
1923 			pci_dev_put(p_smbus);
1924 		}
1925 	}
1926 
1927 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1928 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1929 		dma_bits = 40;
1930 
1931 	/* disable 64bit DMA address on some devices */
1932 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1933 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1934 		gcap &= ~AZX_GCAP_64OK;
1935 	}
1936 
1937 	/* disable buffer size rounding to 128-byte multiples if supported */
1938 	if (align_buffer_size >= 0)
1939 		chip->align_buffer_size = !!align_buffer_size;
1940 	else {
1941 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1942 			chip->align_buffer_size = 0;
1943 		else
1944 			chip->align_buffer_size = 1;
1945 	}
1946 
1947 	/* allow 64bit DMA address if supported by H/W */
1948 	if (!(gcap & AZX_GCAP_64OK))
1949 		dma_bits = 32;
1950 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1951 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1952 	} else {
1953 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1954 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1955 	}
1956 
1957 	/* read number of streams from GCAP register instead of using
1958 	 * hardcoded value
1959 	 */
1960 	chip->capture_streams = (gcap >> 8) & 0x0f;
1961 	chip->playback_streams = (gcap >> 12) & 0x0f;
1962 	if (!chip->playback_streams && !chip->capture_streams) {
1963 		/* gcap didn't give any info, switching to old method */
1964 
1965 		switch (chip->driver_type) {
1966 		case AZX_DRIVER_ULI:
1967 			chip->playback_streams = ULI_NUM_PLAYBACK;
1968 			chip->capture_streams = ULI_NUM_CAPTURE;
1969 			break;
1970 		case AZX_DRIVER_ATIHDMI:
1971 		case AZX_DRIVER_ATIHDMI_NS:
1972 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1973 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1974 			break;
1975 		case AZX_DRIVER_GENERIC:
1976 		default:
1977 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1978 			chip->capture_streams = ICH6_NUM_CAPTURE;
1979 			break;
1980 		}
1981 	}
1982 	chip->capture_index_offset = 0;
1983 	chip->playback_index_offset = chip->capture_streams;
1984 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1985 
1986 	/* sanity check for the SDxCTL.STRM field overflow */
1987 	if (chip->num_streams > 15 &&
1988 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1989 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1990 			 "forcing separate stream tags", chip->num_streams);
1991 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1992 	}
1993 
1994 	/* initialize streams */
1995 	err = azx_init_streams(chip);
1996 	if (err < 0)
1997 		return err;
1998 
1999 	err = azx_alloc_stream_pages(chip);
2000 	if (err < 0)
2001 		return err;
2002 
2003 	/* initialize chip */
2004 	azx_init_pci(chip);
2005 
2006 	snd_hdac_i915_set_bclk(bus);
2007 
2008 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2009 
2010 	/* codec detection */
2011 	if (!azx_bus(chip)->codec_mask) {
2012 		dev_err(card->dev, "no codecs found!\n");
2013 		/* keep running the rest for the runtime PM */
2014 	}
2015 
2016 	if (azx_acquire_irq(chip, 0) < 0)
2017 		return -EBUSY;
2018 
2019 	strcpy(card->driver, "HDA-Intel");
2020 	strlcpy(card->shortname, driver_short_names[chip->driver_type],
2021 		sizeof(card->shortname));
2022 	snprintf(card->longname, sizeof(card->longname),
2023 		 "%s at 0x%lx irq %i",
2024 		 card->shortname, bus->addr, bus->irq);
2025 
2026 	return 0;
2027 }
2028 
2029 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2030 /* callback from request_firmware_nowait() */
2031 static void azx_firmware_cb(const struct firmware *fw, void *context)
2032 {
2033 	struct snd_card *card = context;
2034 	struct azx *chip = card->private_data;
2035 
2036 	if (fw)
2037 		chip->fw = fw;
2038 	else
2039 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2040 	if (!chip->disabled) {
2041 		/* continue probing */
2042 		azx_probe_continue(chip);
2043 	}
2044 }
2045 #endif
2046 
2047 static int disable_msi_reset_irq(struct azx *chip)
2048 {
2049 	struct hdac_bus *bus = azx_bus(chip);
2050 	int err;
2051 
2052 	free_irq(bus->irq, chip);
2053 	bus->irq = -1;
2054 	chip->card->sync_irq = -1;
2055 	pci_disable_msi(chip->pci);
2056 	chip->msi = 0;
2057 	err = azx_acquire_irq(chip, 1);
2058 	if (err < 0)
2059 		return err;
2060 
2061 	return 0;
2062 }
2063 
2064 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
2065 			     struct vm_area_struct *area)
2066 {
2067 #ifdef CONFIG_X86
2068 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2069 	struct azx *chip = apcm->chip;
2070 	if (chip->uc_buffer)
2071 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
2072 #endif
2073 }
2074 
2075 /* Blacklist for skipping the whole probe:
2076  * some HD-audio PCI entries are exposed without any codecs, and such devices
2077  * should be ignored from the beginning.
2078  */
2079 static const struct pci_device_id driver_blacklist[] = {
2080 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2081 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2082 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2083 	{}
2084 };
2085 
2086 static const struct hda_controller_ops pci_hda_ops = {
2087 	.disable_msi_reset_irq = disable_msi_reset_irq,
2088 	.pcm_mmap_prepare = pcm_mmap_prepare,
2089 	.position_check = azx_position_check,
2090 };
2091 
2092 static int azx_probe(struct pci_dev *pci,
2093 		     const struct pci_device_id *pci_id)
2094 {
2095 	static int dev;
2096 	struct snd_card *card;
2097 	struct hda_intel *hda;
2098 	struct azx *chip;
2099 	bool schedule_probe;
2100 	int err;
2101 
2102 	if (pci_match_id(driver_blacklist, pci)) {
2103 		dev_info(&pci->dev, "Skipping the blacklisted device\n");
2104 		return -ENODEV;
2105 	}
2106 
2107 	if (dev >= SNDRV_CARDS)
2108 		return -ENODEV;
2109 	if (!enable[dev]) {
2110 		dev++;
2111 		return -ENOENT;
2112 	}
2113 
2114 	/*
2115 	 * stop probe if another Intel's DSP driver should be activated
2116 	 */
2117 	if (dmic_detect) {
2118 		err = snd_intel_dsp_driver_probe(pci);
2119 		if (err != SND_INTEL_DSP_DRIVER_ANY &&
2120 		    err != SND_INTEL_DSP_DRIVER_LEGACY)
2121 			return -ENODEV;
2122 	} else {
2123 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2124 	}
2125 
2126 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2127 			   0, &card);
2128 	if (err < 0) {
2129 		dev_err(&pci->dev, "Error creating card!\n");
2130 		return err;
2131 	}
2132 
2133 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2134 	if (err < 0)
2135 		goto out_free;
2136 	card->private_data = chip;
2137 	hda = container_of(chip, struct hda_intel, chip);
2138 
2139 	pci_set_drvdata(pci, card);
2140 
2141 	err = register_vga_switcheroo(chip);
2142 	if (err < 0) {
2143 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2144 		goto out_free;
2145 	}
2146 
2147 	if (check_hdmi_disabled(pci)) {
2148 		dev_info(card->dev, "VGA controller is disabled\n");
2149 		dev_info(card->dev, "Delaying initialization\n");
2150 		chip->disabled = true;
2151 	}
2152 
2153 	schedule_probe = !chip->disabled;
2154 
2155 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2156 	if (patch[dev] && *patch[dev]) {
2157 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2158 			 patch[dev]);
2159 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2160 					      &pci->dev, GFP_KERNEL, card,
2161 					      azx_firmware_cb);
2162 		if (err < 0)
2163 			goto out_free;
2164 		schedule_probe = false; /* continued in azx_firmware_cb() */
2165 	}
2166 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2167 
2168 #ifndef CONFIG_SND_HDA_I915
2169 	if (CONTROLLER_IN_GPU(pci))
2170 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2171 #endif
2172 
2173 	if (schedule_probe)
2174 		schedule_work(&hda->probe_work);
2175 
2176 	dev++;
2177 	if (chip->disabled)
2178 		complete_all(&hda->probe_wait);
2179 	return 0;
2180 
2181 out_free:
2182 	snd_card_free(card);
2183 	return err;
2184 }
2185 
2186 #ifdef CONFIG_PM
2187 /* On some boards setting power_save to a non 0 value leads to clicking /
2188  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2189  * figure out how to avoid these sounds, but that is not always feasible.
2190  * So we keep a list of devices where we disable powersaving as its known
2191  * to causes problems on these devices.
2192  */
2193 static const struct snd_pci_quirk power_save_blacklist[] = {
2194 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2195 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2196 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2197 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2198 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2199 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2200 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2201 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2202 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1581607 */
2203 	SND_PCI_QUIRK(0x1558, 0x3501, "Clevo W35xSS_370SS", 0),
2204 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2205 	SND_PCI_QUIRK(0x1558, 0x6504, "Clevo W65_67SB", 0),
2206 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2207 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2208 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2209 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2210 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2211 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2212 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2213 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2214 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2215 	/* https://bugs.launchpad.net/bugs/1821663 */
2216 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2217 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2218 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2219 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2220 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2221 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2222 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2223 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2224 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2225 	/* https://bugs.launchpad.net/bugs/1821663 */
2226 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2227 	{}
2228 };
2229 #endif /* CONFIG_PM */
2230 
2231 static void set_default_power_save(struct azx *chip)
2232 {
2233 	int val = power_save;
2234 
2235 #ifdef CONFIG_PM
2236 	if (pm_blacklist) {
2237 		const struct snd_pci_quirk *q;
2238 
2239 		q = snd_pci_quirk_lookup(chip->pci, power_save_blacklist);
2240 		if (q && val) {
2241 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save blacklist, forcing power_save to 0\n",
2242 				 q->subvendor, q->subdevice);
2243 			val = 0;
2244 		}
2245 	}
2246 #endif /* CONFIG_PM */
2247 	snd_hda_set_power_save(&chip->bus, val * 1000);
2248 }
2249 
2250 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2251 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2252 	[AZX_DRIVER_NVIDIA] = 8,
2253 	[AZX_DRIVER_TERA] = 1,
2254 };
2255 
2256 static int azx_probe_continue(struct azx *chip)
2257 {
2258 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2259 	struct hdac_bus *bus = azx_bus(chip);
2260 	struct pci_dev *pci = chip->pci;
2261 	int dev = chip->dev_index;
2262 	int err;
2263 
2264 	to_hda_bus(bus)->bus_probing = 1;
2265 	hda->probe_continued = 1;
2266 
2267 	/* bind with i915 if needed */
2268 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2269 		err = snd_hdac_i915_init(bus);
2270 		if (err < 0) {
2271 			/* if the controller is bound only with HDMI/DP
2272 			 * (for HSW and BDW), we need to abort the probe;
2273 			 * for other chips, still continue probing as other
2274 			 * codecs can be on the same link.
2275 			 */
2276 			if (CONTROLLER_IN_GPU(pci)) {
2277 				dev_err(chip->card->dev,
2278 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2279 				goto out_free;
2280 			} else {
2281 				/* don't bother any longer */
2282 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2283 			}
2284 		}
2285 
2286 		/* HSW/BDW controllers need this power */
2287 		if (CONTROLLER_IN_GPU(pci))
2288 			hda->need_i915_power = 1;
2289 	}
2290 
2291 	/* Request display power well for the HDA controller or codec. For
2292 	 * Haswell/Broadwell, both the display HDA controller and codec need
2293 	 * this power. For other platforms, like Baytrail/Braswell, only the
2294 	 * display codec needs the power and it can be released after probe.
2295 	 */
2296 	display_power(chip, true);
2297 
2298 	err = azx_first_init(chip);
2299 	if (err < 0)
2300 		goto out_free;
2301 
2302 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2303 	chip->beep_mode = beep_mode[dev];
2304 #endif
2305 
2306 	/* create codec instances */
2307 	if (bus->codec_mask) {
2308 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2309 		if (err < 0)
2310 			goto out_free;
2311 	}
2312 
2313 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2314 	if (chip->fw) {
2315 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2316 					 chip->fw->data);
2317 		if (err < 0)
2318 			goto out_free;
2319 #ifndef CONFIG_PM
2320 		release_firmware(chip->fw); /* no longer needed */
2321 		chip->fw = NULL;
2322 #endif
2323 	}
2324 #endif
2325 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2326 		err = azx_codec_configure(chip);
2327 		if (err < 0)
2328 			goto out_free;
2329 	}
2330 
2331 	err = snd_card_register(chip->card);
2332 	if (err < 0)
2333 		goto out_free;
2334 
2335 	setup_vga_switcheroo_runtime_pm(chip);
2336 
2337 	chip->running = 1;
2338 	azx_add_card_list(chip);
2339 
2340 	set_default_power_save(chip);
2341 
2342 	if (azx_has_pm_runtime(chip)) {
2343 		pm_runtime_use_autosuspend(&pci->dev);
2344 		pm_runtime_allow(&pci->dev);
2345 		pm_runtime_put_autosuspend(&pci->dev);
2346 	}
2347 
2348 out_free:
2349 	if (err < 0) {
2350 		azx_free(chip);
2351 		return err;
2352 	}
2353 
2354 	if (!hda->need_i915_power)
2355 		display_power(chip, false);
2356 	complete_all(&hda->probe_wait);
2357 	to_hda_bus(bus)->bus_probing = 0;
2358 	return 0;
2359 }
2360 
2361 static void azx_remove(struct pci_dev *pci)
2362 {
2363 	struct snd_card *card = pci_get_drvdata(pci);
2364 	struct azx *chip;
2365 	struct hda_intel *hda;
2366 
2367 	if (card) {
2368 		/* cancel the pending probing work */
2369 		chip = card->private_data;
2370 		hda = container_of(chip, struct hda_intel, chip);
2371 		/* FIXME: below is an ugly workaround.
2372 		 * Both device_release_driver() and driver_probe_device()
2373 		 * take *both* the device's and its parent's lock before
2374 		 * calling the remove() and probe() callbacks.  The codec
2375 		 * probe takes the locks of both the codec itself and its
2376 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2377 		 * the PCI controller is unbound, it takes its lock, too
2378 		 * ==> ouch, a deadlock!
2379 		 * As a workaround, we unlock temporarily here the controller
2380 		 * device during cancel_work_sync() call.
2381 		 */
2382 		device_unlock(&pci->dev);
2383 		cancel_work_sync(&hda->probe_work);
2384 		device_lock(&pci->dev);
2385 
2386 		snd_card_free(card);
2387 	}
2388 }
2389 
2390 static void azx_shutdown(struct pci_dev *pci)
2391 {
2392 	struct snd_card *card = pci_get_drvdata(pci);
2393 	struct azx *chip;
2394 
2395 	if (!card)
2396 		return;
2397 	chip = card->private_data;
2398 	if (chip && chip->running)
2399 		azx_stop_chip(chip);
2400 }
2401 
2402 /* PCI IDs */
2403 static const struct pci_device_id azx_ids[] = {
2404 	/* CPT */
2405 	{ PCI_DEVICE(0x8086, 0x1c20),
2406 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2407 	/* PBG */
2408 	{ PCI_DEVICE(0x8086, 0x1d20),
2409 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2410 	/* Panther Point */
2411 	{ PCI_DEVICE(0x8086, 0x1e20),
2412 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2413 	/* Lynx Point */
2414 	{ PCI_DEVICE(0x8086, 0x8c20),
2415 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2416 	/* 9 Series */
2417 	{ PCI_DEVICE(0x8086, 0x8ca0),
2418 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2419 	/* Wellsburg */
2420 	{ PCI_DEVICE(0x8086, 0x8d20),
2421 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2422 	{ PCI_DEVICE(0x8086, 0x8d21),
2423 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2424 	/* Lewisburg */
2425 	{ PCI_DEVICE(0x8086, 0xa1f0),
2426 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2427 	{ PCI_DEVICE(0x8086, 0xa270),
2428 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2429 	/* Lynx Point-LP */
2430 	{ PCI_DEVICE(0x8086, 0x9c20),
2431 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2432 	/* Lynx Point-LP */
2433 	{ PCI_DEVICE(0x8086, 0x9c21),
2434 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2435 	/* Wildcat Point-LP */
2436 	{ PCI_DEVICE(0x8086, 0x9ca0),
2437 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2438 	/* Sunrise Point */
2439 	{ PCI_DEVICE(0x8086, 0xa170),
2440 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2441 	/* Sunrise Point-LP */
2442 	{ PCI_DEVICE(0x8086, 0x9d70),
2443 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2444 	/* Kabylake */
2445 	{ PCI_DEVICE(0x8086, 0xa171),
2446 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2447 	/* Kabylake-LP */
2448 	{ PCI_DEVICE(0x8086, 0x9d71),
2449 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2450 	/* Kabylake-H */
2451 	{ PCI_DEVICE(0x8086, 0xa2f0),
2452 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2453 	/* Coffelake */
2454 	{ PCI_DEVICE(0x8086, 0xa348),
2455 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2456 	/* Cannonlake */
2457 	{ PCI_DEVICE(0x8086, 0x9dc8),
2458 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2459 	/* CometLake-LP */
2460 	{ PCI_DEVICE(0x8086, 0x02C8),
2461 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2462 	/* CometLake-H */
2463 	{ PCI_DEVICE(0x8086, 0x06C8),
2464 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2465 	/* CometLake-S */
2466 	{ PCI_DEVICE(0x8086, 0xa3f0),
2467 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2468 	/* Icelake */
2469 	{ PCI_DEVICE(0x8086, 0x34c8),
2470 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2471 	/* Jasperlake */
2472 	{ PCI_DEVICE(0x8086, 0x38c8),
2473 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2474 	{ PCI_DEVICE(0x8086, 0x4dc8),
2475 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2476 	/* Tigerlake */
2477 	{ PCI_DEVICE(0x8086, 0xa0c8),
2478 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2479 	/* Elkhart Lake */
2480 	{ PCI_DEVICE(0x8086, 0x4b55),
2481 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2482 	/* Broxton-P(Apollolake) */
2483 	{ PCI_DEVICE(0x8086, 0x5a98),
2484 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2485 	/* Broxton-T */
2486 	{ PCI_DEVICE(0x8086, 0x1a98),
2487 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2488 	/* Gemini-Lake */
2489 	{ PCI_DEVICE(0x8086, 0x3198),
2490 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2491 	/* Haswell */
2492 	{ PCI_DEVICE(0x8086, 0x0a0c),
2493 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2494 	{ PCI_DEVICE(0x8086, 0x0c0c),
2495 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2496 	{ PCI_DEVICE(0x8086, 0x0d0c),
2497 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2498 	/* Broadwell */
2499 	{ PCI_DEVICE(0x8086, 0x160c),
2500 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2501 	/* 5 Series/3400 */
2502 	{ PCI_DEVICE(0x8086, 0x3b56),
2503 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2504 	/* Poulsbo */
2505 	{ PCI_DEVICE(0x8086, 0x811b),
2506 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2507 	/* Oaktrail */
2508 	{ PCI_DEVICE(0x8086, 0x080a),
2509 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2510 	/* BayTrail */
2511 	{ PCI_DEVICE(0x8086, 0x0f04),
2512 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2513 	/* Braswell */
2514 	{ PCI_DEVICE(0x8086, 0x2284),
2515 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2516 	/* ICH6 */
2517 	{ PCI_DEVICE(0x8086, 0x2668),
2518 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2519 	/* ICH7 */
2520 	{ PCI_DEVICE(0x8086, 0x27d8),
2521 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2522 	/* ESB2 */
2523 	{ PCI_DEVICE(0x8086, 0x269a),
2524 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2525 	/* ICH8 */
2526 	{ PCI_DEVICE(0x8086, 0x284b),
2527 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2528 	/* ICH9 */
2529 	{ PCI_DEVICE(0x8086, 0x293e),
2530 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2531 	/* ICH9 */
2532 	{ PCI_DEVICE(0x8086, 0x293f),
2533 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2534 	/* ICH10 */
2535 	{ PCI_DEVICE(0x8086, 0x3a3e),
2536 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2537 	/* ICH10 */
2538 	{ PCI_DEVICE(0x8086, 0x3a6e),
2539 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2540 	/* Generic Intel */
2541 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2542 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2543 	  .class_mask = 0xffffff,
2544 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2545 	/* ATI SB 450/600/700/800/900 */
2546 	{ PCI_DEVICE(0x1002, 0x437b),
2547 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2548 	{ PCI_DEVICE(0x1002, 0x4383),
2549 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2550 	/* AMD Hudson */
2551 	{ PCI_DEVICE(0x1022, 0x780d),
2552 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2553 	/* AMD, X370 & co */
2554 	{ PCI_DEVICE(0x1022, 0x1457),
2555 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2556 	/* AMD, X570 & co */
2557 	{ PCI_DEVICE(0x1022, 0x1487),
2558 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2559 	/* AMD Stoney */
2560 	{ PCI_DEVICE(0x1022, 0x157a),
2561 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2562 			 AZX_DCAPS_PM_RUNTIME },
2563 	/* AMD Raven */
2564 	{ PCI_DEVICE(0x1022, 0x15e3),
2565 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2566 	/* ATI HDMI */
2567 	{ PCI_DEVICE(0x1002, 0x0002),
2568 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2569 	{ PCI_DEVICE(0x1002, 0x1308),
2570 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2571 	{ PCI_DEVICE(0x1002, 0x157a),
2572 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2573 	{ PCI_DEVICE(0x1002, 0x15b3),
2574 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2575 	{ PCI_DEVICE(0x1002, 0x793b),
2576 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2577 	{ PCI_DEVICE(0x1002, 0x7919),
2578 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2579 	{ PCI_DEVICE(0x1002, 0x960f),
2580 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2581 	{ PCI_DEVICE(0x1002, 0x970f),
2582 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2583 	{ PCI_DEVICE(0x1002, 0x9840),
2584 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2585 	{ PCI_DEVICE(0x1002, 0xaa00),
2586 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2587 	{ PCI_DEVICE(0x1002, 0xaa08),
2588 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2589 	{ PCI_DEVICE(0x1002, 0xaa10),
2590 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2591 	{ PCI_DEVICE(0x1002, 0xaa18),
2592 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2593 	{ PCI_DEVICE(0x1002, 0xaa20),
2594 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2595 	{ PCI_DEVICE(0x1002, 0xaa28),
2596 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2597 	{ PCI_DEVICE(0x1002, 0xaa30),
2598 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2599 	{ PCI_DEVICE(0x1002, 0xaa38),
2600 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2601 	{ PCI_DEVICE(0x1002, 0xaa40),
2602 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2603 	{ PCI_DEVICE(0x1002, 0xaa48),
2604 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2605 	{ PCI_DEVICE(0x1002, 0xaa50),
2606 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2607 	{ PCI_DEVICE(0x1002, 0xaa58),
2608 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2609 	{ PCI_DEVICE(0x1002, 0xaa60),
2610 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2611 	{ PCI_DEVICE(0x1002, 0xaa68),
2612 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2613 	{ PCI_DEVICE(0x1002, 0xaa80),
2614 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2615 	{ PCI_DEVICE(0x1002, 0xaa88),
2616 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2617 	{ PCI_DEVICE(0x1002, 0xaa90),
2618 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2619 	{ PCI_DEVICE(0x1002, 0xaa98),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2621 	{ PCI_DEVICE(0x1002, 0x9902),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2623 	{ PCI_DEVICE(0x1002, 0xaaa0),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2625 	{ PCI_DEVICE(0x1002, 0xaaa8),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2627 	{ PCI_DEVICE(0x1002, 0xaab0),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2629 	{ PCI_DEVICE(0x1002, 0xaac0),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2631 	{ PCI_DEVICE(0x1002, 0xaac8),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2633 	{ PCI_DEVICE(0x1002, 0xaad8),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2635 	  AZX_DCAPS_PM_RUNTIME },
2636 	{ PCI_DEVICE(0x1002, 0xaae0),
2637 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2638 	  AZX_DCAPS_PM_RUNTIME },
2639 	{ PCI_DEVICE(0x1002, 0xaae8),
2640 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2641 	  AZX_DCAPS_PM_RUNTIME },
2642 	{ PCI_DEVICE(0x1002, 0xaaf0),
2643 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2644 	  AZX_DCAPS_PM_RUNTIME },
2645 	{ PCI_DEVICE(0x1002, 0xaaf8),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2647 	  AZX_DCAPS_PM_RUNTIME },
2648 	{ PCI_DEVICE(0x1002, 0xab00),
2649 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2650 	  AZX_DCAPS_PM_RUNTIME },
2651 	{ PCI_DEVICE(0x1002, 0xab08),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2653 	  AZX_DCAPS_PM_RUNTIME },
2654 	{ PCI_DEVICE(0x1002, 0xab10),
2655 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2656 	  AZX_DCAPS_PM_RUNTIME },
2657 	{ PCI_DEVICE(0x1002, 0xab18),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2659 	  AZX_DCAPS_PM_RUNTIME },
2660 	{ PCI_DEVICE(0x1002, 0xab20),
2661 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2662 	  AZX_DCAPS_PM_RUNTIME },
2663 	{ PCI_DEVICE(0x1002, 0xab28),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2665 	  AZX_DCAPS_PM_RUNTIME },
2666 	{ PCI_DEVICE(0x1002, 0xab38),
2667 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2668 	  AZX_DCAPS_PM_RUNTIME },
2669 	/* VIA VT8251/VT8237A */
2670 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2671 	/* VIA GFX VT7122/VX900 */
2672 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2673 	/* VIA GFX VT6122/VX11 */
2674 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2675 	/* SIS966 */
2676 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2677 	/* ULI M5461 */
2678 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2679 	/* NVIDIA MCP */
2680 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2681 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2682 	  .class_mask = 0xffffff,
2683 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2684 	/* Teradici */
2685 	{ PCI_DEVICE(0x6549, 0x1200),
2686 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2687 	{ PCI_DEVICE(0x6549, 0x2200),
2688 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2689 	/* Creative X-Fi (CA0110-IBG) */
2690 	/* CTHDA chips */
2691 	{ PCI_DEVICE(0x1102, 0x0010),
2692 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2693 	{ PCI_DEVICE(0x1102, 0x0012),
2694 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2695 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2696 	/* the following entry conflicts with snd-ctxfi driver,
2697 	 * as ctxfi driver mutates from HD-audio to native mode with
2698 	 * a special command sequence.
2699 	 */
2700 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2701 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2702 	  .class_mask = 0xffffff,
2703 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2704 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2705 #else
2706 	/* this entry seems still valid -- i.e. without emu20kx chip */
2707 	{ PCI_DEVICE(0x1102, 0x0009),
2708 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2709 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2710 #endif
2711 	/* CM8888 */
2712 	{ PCI_DEVICE(0x13f6, 0x5011),
2713 	  .driver_data = AZX_DRIVER_CMEDIA |
2714 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2715 	/* Vortex86MX */
2716 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2717 	/* VMware HDAudio */
2718 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2719 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2720 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2721 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2722 	  .class_mask = 0xffffff,
2723 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2724 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2725 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2726 	  .class_mask = 0xffffff,
2727 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2728 	/* Zhaoxin */
2729 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2730 	{ 0, }
2731 };
2732 MODULE_DEVICE_TABLE(pci, azx_ids);
2733 
2734 /* pci_driver definition */
2735 static struct pci_driver azx_driver = {
2736 	.name = KBUILD_MODNAME,
2737 	.id_table = azx_ids,
2738 	.probe = azx_probe,
2739 	.remove = azx_remove,
2740 	.shutdown = azx_shutdown,
2741 	.driver = {
2742 		.pm = AZX_PM_OPS,
2743 	},
2744 };
2745 
2746 module_pci_driver(azx_driver);
2747