xref: /linux/sound/pci/hda/hda_intel.c (revision 48dea9a700c8728cc31a1dd44588b97578de86ee)
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 denylist");
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 	 AZX_DCAPS_SUSPEND_SPURIOUS_WAKEUP)
302 
303 /* HSW HDMI */
304 #define AZX_DCAPS_INTEL_HASWELL \
305 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
306 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
307 	 AZX_DCAPS_SNOOP_TYPE(SCH))
308 
309 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
310 #define AZX_DCAPS_INTEL_BROADWELL \
311 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
312 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
313 	 AZX_DCAPS_SNOOP_TYPE(SCH))
314 
315 #define AZX_DCAPS_INTEL_BAYTRAIL \
316 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
317 
318 #define AZX_DCAPS_INTEL_BRASWELL \
319 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
320 	 AZX_DCAPS_I915_COMPONENT)
321 
322 #define AZX_DCAPS_INTEL_SKYLAKE \
323 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
324 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
325 
326 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
327 
328 /* quirks for ATI SB / AMD Hudson */
329 #define AZX_DCAPS_PRESET_ATI_SB \
330 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
331 	 AZX_DCAPS_SNOOP_TYPE(ATI))
332 
333 /* quirks for ATI/AMD HDMI */
334 #define AZX_DCAPS_PRESET_ATI_HDMI \
335 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
336 	 AZX_DCAPS_NO_MSI64)
337 
338 /* quirks for ATI HDMI with snoop off */
339 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
340 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
341 
342 /* quirks for AMD SB */
343 #define AZX_DCAPS_PRESET_AMD_SB \
344 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
345 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)
346 
347 /* quirks for Nvidia */
348 #define AZX_DCAPS_PRESET_NVIDIA \
349 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
350 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
351 
352 #define AZX_DCAPS_PRESET_CTHDA \
353 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
354 	 AZX_DCAPS_NO_64BIT |\
355 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
356 
357 /*
358  * vga_switcheroo support
359  */
360 #ifdef SUPPORT_VGA_SWITCHEROO
361 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
362 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
363 #else
364 #define use_vga_switcheroo(chip)	0
365 #define needs_eld_notify_link(chip)	false
366 #endif
367 
368 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
369 					((pci)->device == 0x0c0c) || \
370 					((pci)->device == 0x0d0c) || \
371 					((pci)->device == 0x160c))
372 
373 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
374 
375 static const char * const driver_short_names[] = {
376 	[AZX_DRIVER_ICH] = "HDA Intel",
377 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
378 	[AZX_DRIVER_SCH] = "HDA Intel MID",
379 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
380 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
381 	[AZX_DRIVER_ATI] = "HDA ATI SB",
382 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
383 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
384 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
385 	[AZX_DRIVER_SIS] = "HDA SIS966",
386 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
387 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
388 	[AZX_DRIVER_TERA] = "HDA Teradici",
389 	[AZX_DRIVER_CTX] = "HDA Creative",
390 	[AZX_DRIVER_CTHDA] = "HDA Creative",
391 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
392 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
393 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
394 };
395 
396 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
397 static void set_default_power_save(struct azx *chip);
398 
399 /*
400  * initialize the PCI registers
401  */
402 /* update bits in a PCI register byte */
403 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
404 			    unsigned char mask, unsigned char val)
405 {
406 	unsigned char data;
407 
408 	pci_read_config_byte(pci, reg, &data);
409 	data &= ~mask;
410 	data |= (val & mask);
411 	pci_write_config_byte(pci, reg, data);
412 }
413 
414 static void azx_init_pci(struct azx *chip)
415 {
416 	int snoop_type = azx_get_snoop_type(chip);
417 
418 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
419 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
420 	 * Ensuring these bits are 0 clears playback static on some HD Audio
421 	 * codecs.
422 	 * The PCI register TCSEL is defined in the Intel manuals.
423 	 */
424 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
425 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
426 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
427 	}
428 
429 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
430 	 * we need to enable snoop.
431 	 */
432 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
433 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
434 			azx_snoop(chip));
435 		update_pci_byte(chip->pci,
436 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
437 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
438 	}
439 
440 	/* For NVIDIA HDA, enable snoop */
441 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
442 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
443 			azx_snoop(chip));
444 		update_pci_byte(chip->pci,
445 				NVIDIA_HDA_TRANSREG_ADDR,
446 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
447 		update_pci_byte(chip->pci,
448 				NVIDIA_HDA_ISTRM_COH,
449 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
450 		update_pci_byte(chip->pci,
451 				NVIDIA_HDA_OSTRM_COH,
452 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
453 	}
454 
455 	/* Enable SCH/PCH snoop if needed */
456 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
457 		unsigned short snoop;
458 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
459 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
460 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
461 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
462 			if (!azx_snoop(chip))
463 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
464 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
465 			pci_read_config_word(chip->pci,
466 				INTEL_SCH_HDA_DEVC, &snoop);
467 		}
468 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
469 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
470 			"Disabled" : "Enabled");
471         }
472 }
473 
474 /*
475  * In BXT-P A0, HD-Audio DMA requests is later than expected,
476  * and makes an audio stream sensitive to system latencies when
477  * 24/32 bits are playing.
478  * Adjusting threshold of DMA fifo to force the DMA request
479  * sooner to improve latency tolerance at the expense of power.
480  */
481 static void bxt_reduce_dma_latency(struct azx *chip)
482 {
483 	u32 val;
484 
485 	val = azx_readl(chip, VS_EM4L);
486 	val &= (0x3 << 20);
487 	azx_writel(chip, VS_EM4L, val);
488 }
489 
490 /*
491  * ML_LCAP bits:
492  *  bit 0: 6 MHz Supported
493  *  bit 1: 12 MHz Supported
494  *  bit 2: 24 MHz Supported
495  *  bit 3: 48 MHz Supported
496  *  bit 4: 96 MHz Supported
497  *  bit 5: 192 MHz Supported
498  */
499 static int intel_get_lctl_scf(struct azx *chip)
500 {
501 	struct hdac_bus *bus = azx_bus(chip);
502 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
503 	u32 val, t;
504 	int i;
505 
506 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
507 
508 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
509 		t = preferred_bits[i];
510 		if (val & (1 << t))
511 			return t;
512 	}
513 
514 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
515 	return 0;
516 }
517 
518 static int intel_ml_lctl_set_power(struct azx *chip, int state)
519 {
520 	struct hdac_bus *bus = azx_bus(chip);
521 	u32 val;
522 	int timeout;
523 
524 	/*
525 	 * the codecs are sharing the first link setting by default
526 	 * If other links are enabled for stream, they need similar fix
527 	 */
528 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
529 	val &= ~AZX_MLCTL_SPA;
530 	val |= state << AZX_MLCTL_SPA_SHIFT;
531 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
532 	/* wait for CPA */
533 	timeout = 50;
534 	while (timeout) {
535 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
536 		    AZX_MLCTL_CPA) == (state << AZX_MLCTL_CPA_SHIFT))
537 			return 0;
538 		timeout--;
539 		udelay(10);
540 	}
541 
542 	return -1;
543 }
544 
545 static void intel_init_lctl(struct azx *chip)
546 {
547 	struct hdac_bus *bus = azx_bus(chip);
548 	u32 val;
549 	int ret;
550 
551 	/* 0. check lctl register value is correct or not */
552 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
553 	/* if SCF is already set, let's use it */
554 	if ((val & ML_LCTL_SCF_MASK) != 0)
555 		return;
556 
557 	/*
558 	 * Before operating on SPA, CPA must match SPA.
559 	 * Any deviation may result in undefined behavior.
560 	 */
561 	if (((val & AZX_MLCTL_SPA) >> AZX_MLCTL_SPA_SHIFT) !=
562 		((val & AZX_MLCTL_CPA) >> AZX_MLCTL_CPA_SHIFT))
563 		return;
564 
565 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
566 	ret = intel_ml_lctl_set_power(chip, 0);
567 	udelay(100);
568 	if (ret)
569 		goto set_spa;
570 
571 	/* 2. update SCF to select a properly audio clock*/
572 	val &= ~ML_LCTL_SCF_MASK;
573 	val |= intel_get_lctl_scf(chip);
574 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
575 
576 set_spa:
577 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
578 	intel_ml_lctl_set_power(chip, 1);
579 	udelay(100);
580 }
581 
582 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
583 {
584 	struct hdac_bus *bus = azx_bus(chip);
585 	struct pci_dev *pci = chip->pci;
586 	u32 val;
587 
588 	snd_hdac_set_codec_wakeup(bus, true);
589 	if (chip->driver_type == AZX_DRIVER_SKL) {
590 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
591 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
592 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
593 	}
594 	azx_init_chip(chip, full_reset);
595 	if (chip->driver_type == AZX_DRIVER_SKL) {
596 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
597 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
598 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
599 	}
600 
601 	snd_hdac_set_codec_wakeup(bus, false);
602 
603 	/* reduce dma latency to avoid noise */
604 	if (IS_BXT(pci))
605 		bxt_reduce_dma_latency(chip);
606 
607 	if (bus->mlcap != NULL)
608 		intel_init_lctl(chip);
609 }
610 
611 /* calculate runtime delay from LPIB */
612 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
613 				   unsigned int pos)
614 {
615 	struct snd_pcm_substream *substream = azx_dev->core.substream;
616 	int stream = substream->stream;
617 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
618 	int delay;
619 
620 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
621 		delay = pos - lpib_pos;
622 	else
623 		delay = lpib_pos - pos;
624 	if (delay < 0) {
625 		if (delay >= azx_dev->core.delay_negative_threshold)
626 			delay = 0;
627 		else
628 			delay += azx_dev->core.bufsize;
629 	}
630 
631 	if (delay >= azx_dev->core.period_bytes) {
632 		dev_info(chip->card->dev,
633 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
634 			 delay, azx_dev->core.period_bytes);
635 		delay = 0;
636 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
637 		chip->get_delay[stream] = NULL;
638 	}
639 
640 	return bytes_to_frames(substream->runtime, delay);
641 }
642 
643 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
644 
645 /* called from IRQ */
646 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
647 {
648 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
649 	int ok;
650 
651 	ok = azx_position_ok(chip, azx_dev);
652 	if (ok == 1) {
653 		azx_dev->irq_pending = 0;
654 		return ok;
655 	} else if (ok == 0) {
656 		/* bogus IRQ, process it later */
657 		azx_dev->irq_pending = 1;
658 		schedule_work(&hda->irq_pending_work);
659 	}
660 	return 0;
661 }
662 
663 #define display_power(chip, enable) \
664 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
665 
666 /*
667  * Check whether the current DMA position is acceptable for updating
668  * periods.  Returns non-zero if it's OK.
669  *
670  * Many HD-audio controllers appear pretty inaccurate about
671  * the update-IRQ timing.  The IRQ is issued before actually the
672  * data is processed.  So, we need to process it afterwords in a
673  * workqueue.
674  */
675 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
676 {
677 	struct snd_pcm_substream *substream = azx_dev->core.substream;
678 	int stream = substream->stream;
679 	u32 wallclk;
680 	unsigned int pos;
681 
682 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
683 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
684 		return -1;	/* bogus (too early) interrupt */
685 
686 	if (chip->get_position[stream])
687 		pos = chip->get_position[stream](chip, azx_dev);
688 	else { /* use the position buffer as default */
689 		pos = azx_get_pos_posbuf(chip, azx_dev);
690 		if (!pos || pos == (u32)-1) {
691 			dev_info(chip->card->dev,
692 				 "Invalid position buffer, using LPIB read method instead.\n");
693 			chip->get_position[stream] = azx_get_pos_lpib;
694 			if (chip->get_position[0] == azx_get_pos_lpib &&
695 			    chip->get_position[1] == azx_get_pos_lpib)
696 				azx_bus(chip)->use_posbuf = false;
697 			pos = azx_get_pos_lpib(chip, azx_dev);
698 			chip->get_delay[stream] = NULL;
699 		} else {
700 			chip->get_position[stream] = azx_get_pos_posbuf;
701 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
702 				chip->get_delay[stream] = azx_get_delay_from_lpib;
703 		}
704 	}
705 
706 	if (pos >= azx_dev->core.bufsize)
707 		pos = 0;
708 
709 	if (WARN_ONCE(!azx_dev->core.period_bytes,
710 		      "hda-intel: zero azx_dev->period_bytes"))
711 		return -1; /* this shouldn't happen! */
712 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
713 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
714 		/* NG - it's below the first next period boundary */
715 		return chip->bdl_pos_adj ? 0 : -1;
716 	azx_dev->core.start_wallclk += wallclk;
717 	return 1; /* OK, it's fine */
718 }
719 
720 /*
721  * The work for pending PCM period updates.
722  */
723 static void azx_irq_pending_work(struct work_struct *work)
724 {
725 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
726 	struct azx *chip = &hda->chip;
727 	struct hdac_bus *bus = azx_bus(chip);
728 	struct hdac_stream *s;
729 	int pending, ok;
730 
731 	if (!hda->irq_pending_warned) {
732 		dev_info(chip->card->dev,
733 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
734 			 chip->card->number);
735 		hda->irq_pending_warned = 1;
736 	}
737 
738 	for (;;) {
739 		pending = 0;
740 		spin_lock_irq(&bus->reg_lock);
741 		list_for_each_entry(s, &bus->stream_list, list) {
742 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
743 			if (!azx_dev->irq_pending ||
744 			    !s->substream ||
745 			    !s->running)
746 				continue;
747 			ok = azx_position_ok(chip, azx_dev);
748 			if (ok > 0) {
749 				azx_dev->irq_pending = 0;
750 				spin_unlock(&bus->reg_lock);
751 				snd_pcm_period_elapsed(s->substream);
752 				spin_lock(&bus->reg_lock);
753 			} else if (ok < 0) {
754 				pending = 0;	/* too early */
755 			} else
756 				pending++;
757 		}
758 		spin_unlock_irq(&bus->reg_lock);
759 		if (!pending)
760 			return;
761 		msleep(1);
762 	}
763 }
764 
765 /* clear irq_pending flags and assure no on-going workq */
766 static void azx_clear_irq_pending(struct azx *chip)
767 {
768 	struct hdac_bus *bus = azx_bus(chip);
769 	struct hdac_stream *s;
770 
771 	spin_lock_irq(&bus->reg_lock);
772 	list_for_each_entry(s, &bus->stream_list, list) {
773 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
774 		azx_dev->irq_pending = 0;
775 	}
776 	spin_unlock_irq(&bus->reg_lock);
777 }
778 
779 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
780 {
781 	struct hdac_bus *bus = azx_bus(chip);
782 
783 	if (request_irq(chip->pci->irq, azx_interrupt,
784 			chip->msi ? 0 : IRQF_SHARED,
785 			chip->card->irq_descr, chip)) {
786 		dev_err(chip->card->dev,
787 			"unable to grab IRQ %d, disabling device\n",
788 			chip->pci->irq);
789 		if (do_disconnect)
790 			snd_card_disconnect(chip->card);
791 		return -1;
792 	}
793 	bus->irq = chip->pci->irq;
794 	chip->card->sync_irq = bus->irq;
795 	pci_intx(chip->pci, !chip->msi);
796 	return 0;
797 }
798 
799 /* get the current DMA position with correction on VIA chips */
800 static unsigned int azx_via_get_position(struct azx *chip,
801 					 struct azx_dev *azx_dev)
802 {
803 	unsigned int link_pos, mini_pos, bound_pos;
804 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
805 	unsigned int fifo_size;
806 
807 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
808 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
809 		/* Playback, no problem using link position */
810 		return link_pos;
811 	}
812 
813 	/* Capture */
814 	/* For new chipset,
815 	 * use mod to get the DMA position just like old chipset
816 	 */
817 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
818 	mod_dma_pos %= azx_dev->core.period_bytes;
819 
820 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
821 
822 	if (azx_dev->insufficient) {
823 		/* Link position never gather than FIFO size */
824 		if (link_pos <= fifo_size)
825 			return 0;
826 
827 		azx_dev->insufficient = 0;
828 	}
829 
830 	if (link_pos <= fifo_size)
831 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
832 	else
833 		mini_pos = link_pos - fifo_size;
834 
835 	/* Find nearest previous boudary */
836 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
837 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
838 	if (mod_link_pos >= fifo_size)
839 		bound_pos = link_pos - mod_link_pos;
840 	else if (mod_dma_pos >= mod_mini_pos)
841 		bound_pos = mini_pos - mod_mini_pos;
842 	else {
843 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
844 		if (bound_pos >= azx_dev->core.bufsize)
845 			bound_pos = 0;
846 	}
847 
848 	/* Calculate real DMA position we want */
849 	return bound_pos + mod_dma_pos;
850 }
851 
852 #define AMD_FIFO_SIZE	32
853 
854 /* get the current DMA position with FIFO size correction */
855 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
856 {
857 	struct snd_pcm_substream *substream = azx_dev->core.substream;
858 	struct snd_pcm_runtime *runtime = substream->runtime;
859 	unsigned int pos, delay;
860 
861 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
862 	if (!runtime)
863 		return pos;
864 
865 	runtime->delay = AMD_FIFO_SIZE;
866 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
867 	if (azx_dev->insufficient) {
868 		if (pos < delay) {
869 			delay = pos;
870 			runtime->delay = bytes_to_frames(runtime, pos);
871 		} else {
872 			azx_dev->insufficient = 0;
873 		}
874 	}
875 
876 	/* correct the DMA position for capture stream */
877 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
878 		if (pos < delay)
879 			pos += azx_dev->core.bufsize;
880 		pos -= delay;
881 	}
882 
883 	return pos;
884 }
885 
886 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
887 				   unsigned int pos)
888 {
889 	struct snd_pcm_substream *substream = azx_dev->core.substream;
890 
891 	/* just read back the calculated value in the above */
892 	return substream->runtime->delay;
893 }
894 
895 static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
896 					 struct azx_dev *azx_dev)
897 {
898 	return _snd_hdac_chip_readl(azx_bus(chip),
899 				    AZX_REG_VS_SDXDPIB_XBASE +
900 				    (AZX_REG_VS_SDXDPIB_XINTERVAL *
901 				     azx_dev->core.index));
902 }
903 
904 /* get the current DMA position with correction on SKL+ chips */
905 static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
906 {
907 	/* DPIB register gives a more accurate position for playback */
908 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
909 		return azx_skl_get_dpib_pos(chip, azx_dev);
910 
911 	/* For capture, we need to read posbuf, but it requires a delay
912 	 * for the possible boundary overlap; the read of DPIB fetches the
913 	 * actual posbuf
914 	 */
915 	udelay(20);
916 	azx_skl_get_dpib_pos(chip, azx_dev);
917 	return azx_get_pos_posbuf(chip, azx_dev);
918 }
919 
920 #ifdef CONFIG_PM
921 static DEFINE_MUTEX(card_list_lock);
922 static LIST_HEAD(card_list);
923 
924 static void azx_add_card_list(struct azx *chip)
925 {
926 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
927 	mutex_lock(&card_list_lock);
928 	list_add(&hda->list, &card_list);
929 	mutex_unlock(&card_list_lock);
930 }
931 
932 static void azx_del_card_list(struct azx *chip)
933 {
934 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
935 	mutex_lock(&card_list_lock);
936 	list_del_init(&hda->list);
937 	mutex_unlock(&card_list_lock);
938 }
939 
940 /* trigger power-save check at writing parameter */
941 static int param_set_xint(const char *val, const struct kernel_param *kp)
942 {
943 	struct hda_intel *hda;
944 	struct azx *chip;
945 	int prev = power_save;
946 	int ret = param_set_int(val, kp);
947 
948 	if (ret || prev == power_save)
949 		return ret;
950 
951 	mutex_lock(&card_list_lock);
952 	list_for_each_entry(hda, &card_list, list) {
953 		chip = &hda->chip;
954 		if (!hda->probe_continued || chip->disabled)
955 			continue;
956 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
957 	}
958 	mutex_unlock(&card_list_lock);
959 	return 0;
960 }
961 
962 /*
963  * power management
964  */
965 static bool azx_is_pm_ready(struct snd_card *card)
966 {
967 	struct azx *chip;
968 	struct hda_intel *hda;
969 
970 	if (!card)
971 		return false;
972 	chip = card->private_data;
973 	hda = container_of(chip, struct hda_intel, chip);
974 	if (chip->disabled || hda->init_failed || !chip->running)
975 		return false;
976 	return true;
977 }
978 
979 static void __azx_runtime_suspend(struct azx *chip)
980 {
981 	azx_stop_chip(chip);
982 	azx_enter_link_reset(chip);
983 	azx_clear_irq_pending(chip);
984 	display_power(chip, false);
985 }
986 
987 static void __azx_runtime_resume(struct azx *chip, bool from_rt)
988 {
989 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
990 	struct hdac_bus *bus = azx_bus(chip);
991 	struct hda_codec *codec;
992 	int status;
993 
994 	display_power(chip, true);
995 	if (hda->need_i915_power)
996 		snd_hdac_i915_set_bclk(bus);
997 
998 	/* Read STATESTS before controller reset */
999 	status = azx_readw(chip, STATESTS);
1000 
1001 	azx_init_pci(chip);
1002 	hda_intel_init_chip(chip, true);
1003 
1004 	if (status && from_rt) {
1005 		list_for_each_codec(codec, &chip->bus)
1006 			if (!codec->relaxed_resume &&
1007 			    (status & (1 << codec->addr)))
1008 				schedule_delayed_work(&codec->jackpoll_work,
1009 						      codec->jackpoll_interval);
1010 	}
1011 
1012 	/* power down again for link-controlled chips */
1013 	if (!hda->need_i915_power)
1014 		display_power(chip, false);
1015 }
1016 
1017 #ifdef CONFIG_PM_SLEEP
1018 static int azx_suspend(struct device *dev)
1019 {
1020 	struct snd_card *card = dev_get_drvdata(dev);
1021 	struct azx *chip;
1022 	struct hdac_bus *bus;
1023 
1024 	if (!azx_is_pm_ready(card))
1025 		return 0;
1026 
1027 	chip = card->private_data;
1028 	bus = azx_bus(chip);
1029 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1030 	/* An ugly workaround: direct call of __azx_runtime_suspend() and
1031 	 * __azx_runtime_resume() for old Intel platforms that suffer from
1032 	 * spurious wakeups after S3 suspend
1033 	 */
1034 	if (chip->driver_caps & AZX_DCAPS_SUSPEND_SPURIOUS_WAKEUP)
1035 		__azx_runtime_suspend(chip);
1036 	else
1037 		pm_runtime_force_suspend(dev);
1038 	if (bus->irq >= 0) {
1039 		free_irq(bus->irq, chip);
1040 		bus->irq = -1;
1041 		chip->card->sync_irq = -1;
1042 	}
1043 
1044 	if (chip->msi)
1045 		pci_disable_msi(chip->pci);
1046 
1047 	trace_azx_suspend(chip);
1048 	return 0;
1049 }
1050 
1051 static int azx_resume(struct device *dev)
1052 {
1053 	struct snd_card *card = dev_get_drvdata(dev);
1054 	struct azx *chip;
1055 
1056 	if (!azx_is_pm_ready(card))
1057 		return 0;
1058 
1059 	chip = card->private_data;
1060 	if (chip->msi)
1061 		if (pci_enable_msi(chip->pci) < 0)
1062 			chip->msi = 0;
1063 	if (azx_acquire_irq(chip, 1) < 0)
1064 		return -EIO;
1065 
1066 	if (chip->driver_caps & AZX_DCAPS_SUSPEND_SPURIOUS_WAKEUP)
1067 		__azx_runtime_resume(chip, false);
1068 	else
1069 		pm_runtime_force_resume(dev);
1070 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1071 
1072 	trace_azx_resume(chip);
1073 	return 0;
1074 }
1075 
1076 /* put codec down to D3 at hibernation for Intel SKL+;
1077  * otherwise BIOS may still access the codec and screw up the driver
1078  */
1079 static int azx_freeze_noirq(struct device *dev)
1080 {
1081 	struct snd_card *card = dev_get_drvdata(dev);
1082 	struct azx *chip = card->private_data;
1083 	struct pci_dev *pci = to_pci_dev(dev);
1084 
1085 	if (!azx_is_pm_ready(card))
1086 		return 0;
1087 	if (chip->driver_type == AZX_DRIVER_SKL)
1088 		pci_set_power_state(pci, PCI_D3hot);
1089 
1090 	return 0;
1091 }
1092 
1093 static int azx_thaw_noirq(struct device *dev)
1094 {
1095 	struct snd_card *card = dev_get_drvdata(dev);
1096 	struct azx *chip = card->private_data;
1097 	struct pci_dev *pci = to_pci_dev(dev);
1098 
1099 	if (!azx_is_pm_ready(card))
1100 		return 0;
1101 	if (chip->driver_type == AZX_DRIVER_SKL)
1102 		pci_set_power_state(pci, PCI_D0);
1103 
1104 	return 0;
1105 }
1106 #endif /* CONFIG_PM_SLEEP */
1107 
1108 static int azx_runtime_suspend(struct device *dev)
1109 {
1110 	struct snd_card *card = dev_get_drvdata(dev);
1111 	struct azx *chip;
1112 
1113 	if (!azx_is_pm_ready(card))
1114 		return 0;
1115 	chip = card->private_data;
1116 
1117 	/* enable controller wake up event */
1118 	if (snd_power_get_state(card) == SNDRV_CTL_POWER_D0) {
1119 		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
1120 			   STATESTS_INT_MASK);
1121 	}
1122 
1123 	__azx_runtime_suspend(chip);
1124 	trace_azx_runtime_suspend(chip);
1125 	return 0;
1126 }
1127 
1128 static int azx_runtime_resume(struct device *dev)
1129 {
1130 	struct snd_card *card = dev_get_drvdata(dev);
1131 	struct azx *chip;
1132 	bool from_rt = snd_power_get_state(card) == SNDRV_CTL_POWER_D0;
1133 
1134 	if (!azx_is_pm_ready(card))
1135 		return 0;
1136 	chip = card->private_data;
1137 	__azx_runtime_resume(chip, from_rt);
1138 
1139 	/* disable controller Wake Up event*/
1140 	if (from_rt) {
1141 		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1142 			   ~STATESTS_INT_MASK);
1143 	}
1144 
1145 	trace_azx_runtime_resume(chip);
1146 	return 0;
1147 }
1148 
1149 static int azx_runtime_idle(struct device *dev)
1150 {
1151 	struct snd_card *card = dev_get_drvdata(dev);
1152 	struct azx *chip;
1153 	struct hda_intel *hda;
1154 
1155 	if (!card)
1156 		return 0;
1157 
1158 	chip = card->private_data;
1159 	hda = container_of(chip, struct hda_intel, chip);
1160 	if (chip->disabled || hda->init_failed)
1161 		return 0;
1162 
1163 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1164 	    azx_bus(chip)->codec_powered || !chip->running)
1165 		return -EBUSY;
1166 
1167 	/* ELD notification gets broken when HD-audio bus is off */
1168 	if (needs_eld_notify_link(chip))
1169 		return -EBUSY;
1170 
1171 	return 0;
1172 }
1173 
1174 static const struct dev_pm_ops azx_pm = {
1175 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1176 #ifdef CONFIG_PM_SLEEP
1177 	.freeze_noirq = azx_freeze_noirq,
1178 	.thaw_noirq = azx_thaw_noirq,
1179 #endif
1180 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1181 };
1182 
1183 #define AZX_PM_OPS	&azx_pm
1184 #else
1185 #define azx_add_card_list(chip) /* NOP */
1186 #define azx_del_card_list(chip) /* NOP */
1187 #define AZX_PM_OPS	NULL
1188 #endif /* CONFIG_PM */
1189 
1190 
1191 static int azx_probe_continue(struct azx *chip);
1192 
1193 #ifdef SUPPORT_VGA_SWITCHEROO
1194 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1195 
1196 static void azx_vs_set_state(struct pci_dev *pci,
1197 			     enum vga_switcheroo_state state)
1198 {
1199 	struct snd_card *card = pci_get_drvdata(pci);
1200 	struct azx *chip = card->private_data;
1201 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1202 	struct hda_codec *codec;
1203 	bool disabled;
1204 
1205 	wait_for_completion(&hda->probe_wait);
1206 	if (hda->init_failed)
1207 		return;
1208 
1209 	disabled = (state == VGA_SWITCHEROO_OFF);
1210 	if (chip->disabled == disabled)
1211 		return;
1212 
1213 	if (!hda->probe_continued) {
1214 		chip->disabled = disabled;
1215 		if (!disabled) {
1216 			dev_info(chip->card->dev,
1217 				 "Start delayed initialization\n");
1218 			if (azx_probe_continue(chip) < 0)
1219 				dev_err(chip->card->dev, "initialization error\n");
1220 		}
1221 	} else {
1222 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1223 			 disabled ? "Disabling" : "Enabling");
1224 		if (disabled) {
1225 			list_for_each_codec(codec, &chip->bus) {
1226 				pm_runtime_suspend(hda_codec_dev(codec));
1227 				pm_runtime_disable(hda_codec_dev(codec));
1228 			}
1229 			pm_runtime_suspend(card->dev);
1230 			pm_runtime_disable(card->dev);
1231 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1232 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1233 			 * put ourselves there */
1234 			pci->current_state = PCI_D3cold;
1235 			chip->disabled = true;
1236 			if (snd_hda_lock_devices(&chip->bus))
1237 				dev_warn(chip->card->dev,
1238 					 "Cannot lock devices!\n");
1239 		} else {
1240 			snd_hda_unlock_devices(&chip->bus);
1241 			chip->disabled = false;
1242 			pm_runtime_enable(card->dev);
1243 			list_for_each_codec(codec, &chip->bus) {
1244 				pm_runtime_enable(hda_codec_dev(codec));
1245 				pm_runtime_resume(hda_codec_dev(codec));
1246 			}
1247 		}
1248 	}
1249 }
1250 
1251 static bool azx_vs_can_switch(struct pci_dev *pci)
1252 {
1253 	struct snd_card *card = pci_get_drvdata(pci);
1254 	struct azx *chip = card->private_data;
1255 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1256 
1257 	wait_for_completion(&hda->probe_wait);
1258 	if (hda->init_failed)
1259 		return false;
1260 	if (chip->disabled || !hda->probe_continued)
1261 		return true;
1262 	if (snd_hda_lock_devices(&chip->bus))
1263 		return false;
1264 	snd_hda_unlock_devices(&chip->bus);
1265 	return true;
1266 }
1267 
1268 /*
1269  * The discrete GPU cannot power down unless the HDA controller runtime
1270  * suspends, so activate runtime PM on codecs even if power_save == 0.
1271  */
1272 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1273 {
1274 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1275 	struct hda_codec *codec;
1276 
1277 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1278 		list_for_each_codec(codec, &chip->bus)
1279 			codec->auto_runtime_pm = 1;
1280 		/* reset the power save setup */
1281 		if (chip->running)
1282 			set_default_power_save(chip);
1283 	}
1284 }
1285 
1286 static void azx_vs_gpu_bound(struct pci_dev *pci,
1287 			     enum vga_switcheroo_client_id client_id)
1288 {
1289 	struct snd_card *card = pci_get_drvdata(pci);
1290 	struct azx *chip = card->private_data;
1291 
1292 	if (client_id == VGA_SWITCHEROO_DIS)
1293 		chip->bus.keep_power = 0;
1294 	setup_vga_switcheroo_runtime_pm(chip);
1295 }
1296 
1297 static void init_vga_switcheroo(struct azx *chip)
1298 {
1299 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1300 	struct pci_dev *p = get_bound_vga(chip->pci);
1301 	struct pci_dev *parent;
1302 	if (p) {
1303 		dev_info(chip->card->dev,
1304 			 "Handle vga_switcheroo audio client\n");
1305 		hda->use_vga_switcheroo = 1;
1306 
1307 		/* cleared in either gpu_bound op or codec probe, or when its
1308 		 * upstream port has _PR3 (i.e. dGPU).
1309 		 */
1310 		parent = pci_upstream_bridge(p);
1311 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1312 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1313 		pci_dev_put(p);
1314 	}
1315 }
1316 
1317 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1318 	.set_gpu_state = azx_vs_set_state,
1319 	.can_switch = azx_vs_can_switch,
1320 	.gpu_bound = azx_vs_gpu_bound,
1321 };
1322 
1323 static int register_vga_switcheroo(struct azx *chip)
1324 {
1325 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1326 	struct pci_dev *p;
1327 	int err;
1328 
1329 	if (!hda->use_vga_switcheroo)
1330 		return 0;
1331 
1332 	p = get_bound_vga(chip->pci);
1333 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1334 	pci_dev_put(p);
1335 
1336 	if (err < 0)
1337 		return err;
1338 	hda->vga_switcheroo_registered = 1;
1339 
1340 	return 0;
1341 }
1342 #else
1343 #define init_vga_switcheroo(chip)		/* NOP */
1344 #define register_vga_switcheroo(chip)		0
1345 #define check_hdmi_disabled(pci)	false
1346 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1347 #endif /* SUPPORT_VGA_SWITCHER */
1348 
1349 /*
1350  * destructor
1351  */
1352 static void azx_free(struct azx *chip)
1353 {
1354 	struct pci_dev *pci = chip->pci;
1355 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1356 	struct hdac_bus *bus = azx_bus(chip);
1357 
1358 	if (hda->freed)
1359 		return;
1360 
1361 	if (azx_has_pm_runtime(chip) && chip->running)
1362 		pm_runtime_get_noresume(&pci->dev);
1363 	chip->running = 0;
1364 
1365 	azx_del_card_list(chip);
1366 
1367 	hda->init_failed = 1; /* to be sure */
1368 	complete_all(&hda->probe_wait);
1369 
1370 	if (use_vga_switcheroo(hda)) {
1371 		if (chip->disabled && hda->probe_continued)
1372 			snd_hda_unlock_devices(&chip->bus);
1373 		if (hda->vga_switcheroo_registered)
1374 			vga_switcheroo_unregister_client(chip->pci);
1375 	}
1376 
1377 	if (bus->chip_init) {
1378 		azx_clear_irq_pending(chip);
1379 		azx_stop_all_streams(chip);
1380 		azx_stop_chip(chip);
1381 	}
1382 
1383 	if (bus->irq >= 0)
1384 		free_irq(bus->irq, (void*)chip);
1385 	if (chip->msi)
1386 		pci_disable_msi(chip->pci);
1387 	iounmap(bus->remap_addr);
1388 
1389 	azx_free_stream_pages(chip);
1390 	azx_free_streams(chip);
1391 	snd_hdac_bus_exit(bus);
1392 
1393 	if (chip->region_requested)
1394 		pci_release_regions(chip->pci);
1395 
1396 	pci_disable_device(chip->pci);
1397 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1398 	release_firmware(chip->fw);
1399 #endif
1400 	display_power(chip, false);
1401 
1402 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1403 		snd_hdac_i915_exit(bus);
1404 
1405 	hda->freed = 1;
1406 }
1407 
1408 static int azx_dev_disconnect(struct snd_device *device)
1409 {
1410 	struct azx *chip = device->device_data;
1411 	struct hdac_bus *bus = azx_bus(chip);
1412 
1413 	chip->bus.shutdown = 1;
1414 	cancel_work_sync(&bus->unsol_work);
1415 
1416 	return 0;
1417 }
1418 
1419 static int azx_dev_free(struct snd_device *device)
1420 {
1421 	azx_free(device->device_data);
1422 	return 0;
1423 }
1424 
1425 #ifdef SUPPORT_VGA_SWITCHEROO
1426 #ifdef CONFIG_ACPI
1427 /* ATPX is in the integrated GPU's namespace */
1428 static bool atpx_present(void)
1429 {
1430 	struct pci_dev *pdev = NULL;
1431 	acpi_handle dhandle, atpx_handle;
1432 	acpi_status status;
1433 
1434 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1435 		dhandle = ACPI_HANDLE(&pdev->dev);
1436 		if (dhandle) {
1437 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1438 			if (!ACPI_FAILURE(status)) {
1439 				pci_dev_put(pdev);
1440 				return true;
1441 			}
1442 		}
1443 	}
1444 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1445 		dhandle = ACPI_HANDLE(&pdev->dev);
1446 		if (dhandle) {
1447 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1448 			if (!ACPI_FAILURE(status)) {
1449 				pci_dev_put(pdev);
1450 				return true;
1451 			}
1452 		}
1453 	}
1454 	return false;
1455 }
1456 #else
1457 static bool atpx_present(void)
1458 {
1459 	return false;
1460 }
1461 #endif
1462 
1463 /*
1464  * Check of disabled HDMI controller by vga_switcheroo
1465  */
1466 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1467 {
1468 	struct pci_dev *p;
1469 
1470 	/* check only discrete GPU */
1471 	switch (pci->vendor) {
1472 	case PCI_VENDOR_ID_ATI:
1473 	case PCI_VENDOR_ID_AMD:
1474 		if (pci->devfn == 1) {
1475 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1476 							pci->bus->number, 0);
1477 			if (p) {
1478 				/* ATPX is in the integrated GPU's ACPI namespace
1479 				 * rather than the dGPU's namespace. However,
1480 				 * the dGPU is the one who is involved in
1481 				 * vgaswitcheroo.
1482 				 */
1483 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1484 				    atpx_present())
1485 					return p;
1486 				pci_dev_put(p);
1487 			}
1488 		}
1489 		break;
1490 	case PCI_VENDOR_ID_NVIDIA:
1491 		if (pci->devfn == 1) {
1492 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1493 							pci->bus->number, 0);
1494 			if (p) {
1495 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1496 					return p;
1497 				pci_dev_put(p);
1498 			}
1499 		}
1500 		break;
1501 	}
1502 	return NULL;
1503 }
1504 
1505 static bool check_hdmi_disabled(struct pci_dev *pci)
1506 {
1507 	bool vga_inactive = false;
1508 	struct pci_dev *p = get_bound_vga(pci);
1509 
1510 	if (p) {
1511 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1512 			vga_inactive = true;
1513 		pci_dev_put(p);
1514 	}
1515 	return vga_inactive;
1516 }
1517 #endif /* SUPPORT_VGA_SWITCHEROO */
1518 
1519 /*
1520  * allow/deny-listing for position_fix
1521  */
1522 static const struct snd_pci_quirk position_fix_list[] = {
1523 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1524 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1525 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1526 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1527 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1528 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1529 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1530 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1531 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1532 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1533 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1534 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1535 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1536 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1537 	{}
1538 };
1539 
1540 static int check_position_fix(struct azx *chip, int fix)
1541 {
1542 	const struct snd_pci_quirk *q;
1543 
1544 	switch (fix) {
1545 	case POS_FIX_AUTO:
1546 	case POS_FIX_LPIB:
1547 	case POS_FIX_POSBUF:
1548 	case POS_FIX_VIACOMBO:
1549 	case POS_FIX_COMBO:
1550 	case POS_FIX_SKL:
1551 	case POS_FIX_FIFO:
1552 		return fix;
1553 	}
1554 
1555 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1556 	if (q) {
1557 		dev_info(chip->card->dev,
1558 			 "position_fix set to %d for device %04x:%04x\n",
1559 			 q->value, q->subvendor, q->subdevice);
1560 		return q->value;
1561 	}
1562 
1563 	/* Check VIA/ATI HD Audio Controller exist */
1564 	if (chip->driver_type == AZX_DRIVER_VIA) {
1565 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1566 		return POS_FIX_VIACOMBO;
1567 	}
1568 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1569 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1570 		return POS_FIX_FIFO;
1571 	}
1572 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1573 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1574 		return POS_FIX_LPIB;
1575 	}
1576 	if (chip->driver_type == AZX_DRIVER_SKL) {
1577 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1578 		return POS_FIX_SKL;
1579 	}
1580 	return POS_FIX_AUTO;
1581 }
1582 
1583 static void assign_position_fix(struct azx *chip, int fix)
1584 {
1585 	static const azx_get_pos_callback_t callbacks[] = {
1586 		[POS_FIX_AUTO] = NULL,
1587 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1588 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1589 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1590 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1591 		[POS_FIX_SKL] = azx_get_pos_skl,
1592 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1593 	};
1594 
1595 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1596 
1597 	/* combo mode uses LPIB only for playback */
1598 	if (fix == POS_FIX_COMBO)
1599 		chip->get_position[1] = NULL;
1600 
1601 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1602 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1603 		chip->get_delay[0] = chip->get_delay[1] =
1604 			azx_get_delay_from_lpib;
1605 	}
1606 
1607 	if (fix == POS_FIX_FIFO)
1608 		chip->get_delay[0] = chip->get_delay[1] =
1609 			azx_get_delay_from_fifo;
1610 }
1611 
1612 /*
1613  * deny-lists for probe_mask
1614  */
1615 static const struct snd_pci_quirk probe_mask_list[] = {
1616 	/* Thinkpad often breaks the controller communication when accessing
1617 	 * to the non-working (or non-existing) modem codec slot.
1618 	 */
1619 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1620 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1621 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1622 	/* broken BIOS */
1623 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1624 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1625 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1626 	/* forced codec slots */
1627 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1628 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1629 	/* WinFast VP200 H (Teradici) user reported broken communication */
1630 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1631 	{}
1632 };
1633 
1634 #define AZX_FORCE_CODEC_MASK	0x100
1635 
1636 static void check_probe_mask(struct azx *chip, int dev)
1637 {
1638 	const struct snd_pci_quirk *q;
1639 
1640 	chip->codec_probe_mask = probe_mask[dev];
1641 	if (chip->codec_probe_mask == -1) {
1642 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1643 		if (q) {
1644 			dev_info(chip->card->dev,
1645 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1646 				 q->value, q->subvendor, q->subdevice);
1647 			chip->codec_probe_mask = q->value;
1648 		}
1649 	}
1650 
1651 	/* check forced option */
1652 	if (chip->codec_probe_mask != -1 &&
1653 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1654 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1655 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1656 			 (int)azx_bus(chip)->codec_mask);
1657 	}
1658 }
1659 
1660 /*
1661  * allow/deny-list for enable_msi
1662  */
1663 static const struct snd_pci_quirk msi_deny_list[] = {
1664 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1665 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1666 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1667 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1668 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1669 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1670 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1671 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1672 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1673 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1674 	{}
1675 };
1676 
1677 static void check_msi(struct azx *chip)
1678 {
1679 	const struct snd_pci_quirk *q;
1680 
1681 	if (enable_msi >= 0) {
1682 		chip->msi = !!enable_msi;
1683 		return;
1684 	}
1685 	chip->msi = 1;	/* enable MSI as default */
1686 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1687 	if (q) {
1688 		dev_info(chip->card->dev,
1689 			 "msi for device %04x:%04x set to %d\n",
1690 			 q->subvendor, q->subdevice, q->value);
1691 		chip->msi = q->value;
1692 		return;
1693 	}
1694 
1695 	/* NVidia chipsets seem to cause troubles with MSI */
1696 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1697 		dev_info(chip->card->dev, "Disabling MSI\n");
1698 		chip->msi = 0;
1699 	}
1700 }
1701 
1702 /* check the snoop mode availability */
1703 static void azx_check_snoop_available(struct azx *chip)
1704 {
1705 	int snoop = hda_snoop;
1706 
1707 	if (snoop >= 0) {
1708 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1709 			 snoop ? "snoop" : "non-snoop");
1710 		chip->snoop = snoop;
1711 		chip->uc_buffer = !snoop;
1712 		return;
1713 	}
1714 
1715 	snoop = true;
1716 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1717 	    chip->driver_type == AZX_DRIVER_VIA) {
1718 		/* force to non-snoop mode for a new VIA controller
1719 		 * when BIOS is set
1720 		 */
1721 		u8 val;
1722 		pci_read_config_byte(chip->pci, 0x42, &val);
1723 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1724 				      chip->pci->revision == 0x20))
1725 			snoop = false;
1726 	}
1727 
1728 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1729 		snoop = false;
1730 
1731 	chip->snoop = snoop;
1732 	if (!snoop) {
1733 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1734 		/* C-Media requires non-cached pages only for CORB/RIRB */
1735 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1736 			chip->uc_buffer = true;
1737 	}
1738 }
1739 
1740 static void azx_probe_work(struct work_struct *work)
1741 {
1742 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1743 	azx_probe_continue(&hda->chip);
1744 }
1745 
1746 static int default_bdl_pos_adj(struct azx *chip)
1747 {
1748 	/* some exceptions: Atoms seem problematic with value 1 */
1749 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1750 		switch (chip->pci->device) {
1751 		case 0x0f04: /* Baytrail */
1752 		case 0x2284: /* Braswell */
1753 			return 32;
1754 		}
1755 	}
1756 
1757 	switch (chip->driver_type) {
1758 	case AZX_DRIVER_ICH:
1759 	case AZX_DRIVER_PCH:
1760 		return 1;
1761 	default:
1762 		return 32;
1763 	}
1764 }
1765 
1766 /*
1767  * constructor
1768  */
1769 static const struct hda_controller_ops pci_hda_ops;
1770 
1771 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1772 		      int dev, unsigned int driver_caps,
1773 		      struct azx **rchip)
1774 {
1775 	static const struct snd_device_ops ops = {
1776 		.dev_disconnect = azx_dev_disconnect,
1777 		.dev_free = azx_dev_free,
1778 	};
1779 	struct hda_intel *hda;
1780 	struct azx *chip;
1781 	int err;
1782 
1783 	*rchip = NULL;
1784 
1785 	err = pci_enable_device(pci);
1786 	if (err < 0)
1787 		return err;
1788 
1789 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1790 	if (!hda) {
1791 		pci_disable_device(pci);
1792 		return -ENOMEM;
1793 	}
1794 
1795 	chip = &hda->chip;
1796 	mutex_init(&chip->open_mutex);
1797 	chip->card = card;
1798 	chip->pci = pci;
1799 	chip->ops = &pci_hda_ops;
1800 	chip->driver_caps = driver_caps;
1801 	chip->driver_type = driver_caps & 0xff;
1802 	check_msi(chip);
1803 	chip->dev_index = dev;
1804 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1805 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1806 	INIT_LIST_HEAD(&chip->pcm_list);
1807 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1808 	INIT_LIST_HEAD(&hda->list);
1809 	init_vga_switcheroo(chip);
1810 	init_completion(&hda->probe_wait);
1811 
1812 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1813 
1814 	check_probe_mask(chip, dev);
1815 
1816 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1817 		chip->fallback_to_single_cmd = 1;
1818 	else /* explicitly set to single_cmd or not */
1819 		chip->single_cmd = single_cmd;
1820 
1821 	azx_check_snoop_available(chip);
1822 
1823 	if (bdl_pos_adj[dev] < 0)
1824 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1825 	else
1826 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1827 
1828 	err = azx_bus_init(chip, model[dev]);
1829 	if (err < 0) {
1830 		pci_disable_device(pci);
1831 		return err;
1832 	}
1833 
1834 	/* use the non-cached pages in non-snoop mode */
1835 	if (!azx_snoop(chip))
1836 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_UC;
1837 
1838 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1839 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1840 		chip->bus.core.needs_damn_long_delay = 1;
1841 	}
1842 
1843 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1844 	if (err < 0) {
1845 		dev_err(card->dev, "Error creating device [card]!\n");
1846 		azx_free(chip);
1847 		return err;
1848 	}
1849 
1850 	/* continue probing in work context as may trigger request module */
1851 	INIT_WORK(&hda->probe_work, azx_probe_work);
1852 
1853 	*rchip = chip;
1854 
1855 	return 0;
1856 }
1857 
1858 static int azx_first_init(struct azx *chip)
1859 {
1860 	int dev = chip->dev_index;
1861 	struct pci_dev *pci = chip->pci;
1862 	struct snd_card *card = chip->card;
1863 	struct hdac_bus *bus = azx_bus(chip);
1864 	int err;
1865 	unsigned short gcap;
1866 	unsigned int dma_bits = 64;
1867 
1868 #if BITS_PER_LONG != 64
1869 	/* Fix up base address on ULI M5461 */
1870 	if (chip->driver_type == AZX_DRIVER_ULI) {
1871 		u16 tmp3;
1872 		pci_read_config_word(pci, 0x40, &tmp3);
1873 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1874 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1875 	}
1876 #endif
1877 
1878 	err = pci_request_regions(pci, "ICH HD audio");
1879 	if (err < 0)
1880 		return err;
1881 	chip->region_requested = 1;
1882 
1883 	bus->addr = pci_resource_start(pci, 0);
1884 	bus->remap_addr = pci_ioremap_bar(pci, 0);
1885 	if (bus->remap_addr == NULL) {
1886 		dev_err(card->dev, "ioremap error\n");
1887 		return -ENXIO;
1888 	}
1889 
1890 	if (chip->driver_type == AZX_DRIVER_SKL)
1891 		snd_hdac_bus_parse_capabilities(bus);
1892 
1893 	/*
1894 	 * Some Intel CPUs has always running timer (ART) feature and
1895 	 * controller may have Global time sync reporting capability, so
1896 	 * check both of these before declaring synchronized time reporting
1897 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1898 	 */
1899 	chip->gts_present = false;
1900 
1901 #ifdef CONFIG_X86
1902 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1903 		chip->gts_present = true;
1904 #endif
1905 
1906 	if (chip->msi) {
1907 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1908 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1909 			pci->no_64bit_msi = true;
1910 		}
1911 		if (pci_enable_msi(pci) < 0)
1912 			chip->msi = 0;
1913 	}
1914 
1915 	pci_set_master(pci);
1916 
1917 	gcap = azx_readw(chip, GCAP);
1918 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1919 
1920 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1921 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1922 		dma_bits = 40;
1923 
1924 	/* disable SB600 64bit support for safety */
1925 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1926 		struct pci_dev *p_smbus;
1927 		dma_bits = 40;
1928 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1929 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1930 					 NULL);
1931 		if (p_smbus) {
1932 			if (p_smbus->revision < 0x30)
1933 				gcap &= ~AZX_GCAP_64OK;
1934 			pci_dev_put(p_smbus);
1935 		}
1936 	}
1937 
1938 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1939 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1940 		dma_bits = 40;
1941 
1942 	/* disable 64bit DMA address on some devices */
1943 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1944 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1945 		gcap &= ~AZX_GCAP_64OK;
1946 	}
1947 
1948 	/* disable buffer size rounding to 128-byte multiples if supported */
1949 	if (align_buffer_size >= 0)
1950 		chip->align_buffer_size = !!align_buffer_size;
1951 	else {
1952 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1953 			chip->align_buffer_size = 0;
1954 		else
1955 			chip->align_buffer_size = 1;
1956 	}
1957 
1958 	/* allow 64bit DMA address if supported by H/W */
1959 	if (!(gcap & AZX_GCAP_64OK))
1960 		dma_bits = 32;
1961 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1962 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1963 	} else {
1964 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1965 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1966 	}
1967 
1968 	/* read number of streams from GCAP register instead of using
1969 	 * hardcoded value
1970 	 */
1971 	chip->capture_streams = (gcap >> 8) & 0x0f;
1972 	chip->playback_streams = (gcap >> 12) & 0x0f;
1973 	if (!chip->playback_streams && !chip->capture_streams) {
1974 		/* gcap didn't give any info, switching to old method */
1975 
1976 		switch (chip->driver_type) {
1977 		case AZX_DRIVER_ULI:
1978 			chip->playback_streams = ULI_NUM_PLAYBACK;
1979 			chip->capture_streams = ULI_NUM_CAPTURE;
1980 			break;
1981 		case AZX_DRIVER_ATIHDMI:
1982 		case AZX_DRIVER_ATIHDMI_NS:
1983 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1984 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1985 			break;
1986 		case AZX_DRIVER_GENERIC:
1987 		default:
1988 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1989 			chip->capture_streams = ICH6_NUM_CAPTURE;
1990 			break;
1991 		}
1992 	}
1993 	chip->capture_index_offset = 0;
1994 	chip->playback_index_offset = chip->capture_streams;
1995 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1996 
1997 	/* sanity check for the SDxCTL.STRM field overflow */
1998 	if (chip->num_streams > 15 &&
1999 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
2000 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
2001 			 "forcing separate stream tags", chip->num_streams);
2002 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
2003 	}
2004 
2005 	/* initialize streams */
2006 	err = azx_init_streams(chip);
2007 	if (err < 0)
2008 		return err;
2009 
2010 	err = azx_alloc_stream_pages(chip);
2011 	if (err < 0)
2012 		return err;
2013 
2014 	/* initialize chip */
2015 	azx_init_pci(chip);
2016 
2017 	snd_hdac_i915_set_bclk(bus);
2018 
2019 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2020 
2021 	/* codec detection */
2022 	if (!azx_bus(chip)->codec_mask) {
2023 		dev_err(card->dev, "no codecs found!\n");
2024 		/* keep running the rest for the runtime PM */
2025 	}
2026 
2027 	if (azx_acquire_irq(chip, 0) < 0)
2028 		return -EBUSY;
2029 
2030 	strcpy(card->driver, "HDA-Intel");
2031 	strlcpy(card->shortname, driver_short_names[chip->driver_type],
2032 		sizeof(card->shortname));
2033 	snprintf(card->longname, sizeof(card->longname),
2034 		 "%s at 0x%lx irq %i",
2035 		 card->shortname, bus->addr, bus->irq);
2036 
2037 	return 0;
2038 }
2039 
2040 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2041 /* callback from request_firmware_nowait() */
2042 static void azx_firmware_cb(const struct firmware *fw, void *context)
2043 {
2044 	struct snd_card *card = context;
2045 	struct azx *chip = card->private_data;
2046 
2047 	if (fw)
2048 		chip->fw = fw;
2049 	else
2050 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2051 	if (!chip->disabled) {
2052 		/* continue probing */
2053 		azx_probe_continue(chip);
2054 	}
2055 }
2056 #endif
2057 
2058 static int disable_msi_reset_irq(struct azx *chip)
2059 {
2060 	struct hdac_bus *bus = azx_bus(chip);
2061 	int err;
2062 
2063 	free_irq(bus->irq, chip);
2064 	bus->irq = -1;
2065 	chip->card->sync_irq = -1;
2066 	pci_disable_msi(chip->pci);
2067 	chip->msi = 0;
2068 	err = azx_acquire_irq(chip, 1);
2069 	if (err < 0)
2070 		return err;
2071 
2072 	return 0;
2073 }
2074 
2075 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
2076 			     struct vm_area_struct *area)
2077 {
2078 #ifdef CONFIG_X86
2079 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2080 	struct azx *chip = apcm->chip;
2081 	if (chip->uc_buffer)
2082 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
2083 #endif
2084 }
2085 
2086 /* Denylist for skipping the whole probe:
2087  * some HD-audio PCI entries are exposed without any codecs, and such devices
2088  * should be ignored from the beginning.
2089  */
2090 static const struct pci_device_id driver_denylist[] = {
2091 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2092 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2093 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2094 	{}
2095 };
2096 
2097 static const struct hda_controller_ops pci_hda_ops = {
2098 	.disable_msi_reset_irq = disable_msi_reset_irq,
2099 	.pcm_mmap_prepare = pcm_mmap_prepare,
2100 	.position_check = azx_position_check,
2101 };
2102 
2103 static int azx_probe(struct pci_dev *pci,
2104 		     const struct pci_device_id *pci_id)
2105 {
2106 	static int dev;
2107 	struct snd_card *card;
2108 	struct hda_intel *hda;
2109 	struct azx *chip;
2110 	bool schedule_probe;
2111 	int err;
2112 
2113 	if (pci_match_id(driver_denylist, pci)) {
2114 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2115 		return -ENODEV;
2116 	}
2117 
2118 	if (dev >= SNDRV_CARDS)
2119 		return -ENODEV;
2120 	if (!enable[dev]) {
2121 		dev++;
2122 		return -ENOENT;
2123 	}
2124 
2125 	/*
2126 	 * stop probe if another Intel's DSP driver should be activated
2127 	 */
2128 	if (dmic_detect) {
2129 		err = snd_intel_dsp_driver_probe(pci);
2130 		if (err != SND_INTEL_DSP_DRIVER_ANY &&
2131 		    err != SND_INTEL_DSP_DRIVER_LEGACY)
2132 			return -ENODEV;
2133 	} else {
2134 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2135 	}
2136 
2137 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2138 			   0, &card);
2139 	if (err < 0) {
2140 		dev_err(&pci->dev, "Error creating card!\n");
2141 		return err;
2142 	}
2143 
2144 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2145 	if (err < 0)
2146 		goto out_free;
2147 	card->private_data = chip;
2148 	hda = container_of(chip, struct hda_intel, chip);
2149 
2150 	pci_set_drvdata(pci, card);
2151 
2152 	err = register_vga_switcheroo(chip);
2153 	if (err < 0) {
2154 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2155 		goto out_free;
2156 	}
2157 
2158 	if (check_hdmi_disabled(pci)) {
2159 		dev_info(card->dev, "VGA controller is disabled\n");
2160 		dev_info(card->dev, "Delaying initialization\n");
2161 		chip->disabled = true;
2162 	}
2163 
2164 	schedule_probe = !chip->disabled;
2165 
2166 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2167 	if (patch[dev] && *patch[dev]) {
2168 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2169 			 patch[dev]);
2170 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2171 					      &pci->dev, GFP_KERNEL, card,
2172 					      azx_firmware_cb);
2173 		if (err < 0)
2174 			goto out_free;
2175 		schedule_probe = false; /* continued in azx_firmware_cb() */
2176 	}
2177 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2178 
2179 #ifndef CONFIG_SND_HDA_I915
2180 	if (CONTROLLER_IN_GPU(pci))
2181 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2182 #endif
2183 
2184 	if (schedule_probe)
2185 		schedule_work(&hda->probe_work);
2186 
2187 	dev++;
2188 	if (chip->disabled)
2189 		complete_all(&hda->probe_wait);
2190 	return 0;
2191 
2192 out_free:
2193 	snd_card_free(card);
2194 	return err;
2195 }
2196 
2197 #ifdef CONFIG_PM
2198 /* On some boards setting power_save to a non 0 value leads to clicking /
2199  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2200  * figure out how to avoid these sounds, but that is not always feasible.
2201  * So we keep a list of devices where we disable powersaving as its known
2202  * to causes problems on these devices.
2203  */
2204 static const struct snd_pci_quirk power_save_denylist[] = {
2205 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2206 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2207 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2208 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2209 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2210 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2211 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2212 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2213 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1581607 */
2214 	SND_PCI_QUIRK(0x1558, 0x3501, "Clevo W35xSS_370SS", 0),
2215 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2216 	SND_PCI_QUIRK(0x1558, 0x6504, "Clevo W65_67SB", 0),
2217 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2218 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2219 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2220 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2221 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2222 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2223 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2224 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2225 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2226 	/* https://bugs.launchpad.net/bugs/1821663 */
2227 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2228 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2229 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2230 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2231 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2232 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2233 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2234 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2235 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2236 	/* https://bugs.launchpad.net/bugs/1821663 */
2237 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2238 	{}
2239 };
2240 #endif /* CONFIG_PM */
2241 
2242 static void set_default_power_save(struct azx *chip)
2243 {
2244 	int val = power_save;
2245 
2246 #ifdef CONFIG_PM
2247 	if (pm_blacklist) {
2248 		const struct snd_pci_quirk *q;
2249 
2250 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2251 		if (q && val) {
2252 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2253 				 q->subvendor, q->subdevice);
2254 			val = 0;
2255 		}
2256 	}
2257 #endif /* CONFIG_PM */
2258 	snd_hda_set_power_save(&chip->bus, val * 1000);
2259 }
2260 
2261 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2262 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2263 	[AZX_DRIVER_NVIDIA] = 8,
2264 	[AZX_DRIVER_TERA] = 1,
2265 };
2266 
2267 static int azx_probe_continue(struct azx *chip)
2268 {
2269 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2270 	struct hdac_bus *bus = azx_bus(chip);
2271 	struct pci_dev *pci = chip->pci;
2272 	int dev = chip->dev_index;
2273 	int err;
2274 
2275 	to_hda_bus(bus)->bus_probing = 1;
2276 	hda->probe_continued = 1;
2277 
2278 	/* bind with i915 if needed */
2279 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2280 		err = snd_hdac_i915_init(bus);
2281 		if (err < 0) {
2282 			/* if the controller is bound only with HDMI/DP
2283 			 * (for HSW and BDW), we need to abort the probe;
2284 			 * for other chips, still continue probing as other
2285 			 * codecs can be on the same link.
2286 			 */
2287 			if (CONTROLLER_IN_GPU(pci)) {
2288 				dev_err(chip->card->dev,
2289 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2290 				goto out_free;
2291 			} else {
2292 				/* don't bother any longer */
2293 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2294 			}
2295 		}
2296 
2297 		/* HSW/BDW controllers need this power */
2298 		if (CONTROLLER_IN_GPU(pci))
2299 			hda->need_i915_power = 1;
2300 	}
2301 
2302 	/* Request display power well for the HDA controller or codec. For
2303 	 * Haswell/Broadwell, both the display HDA controller and codec need
2304 	 * this power. For other platforms, like Baytrail/Braswell, only the
2305 	 * display codec needs the power and it can be released after probe.
2306 	 */
2307 	display_power(chip, true);
2308 
2309 	err = azx_first_init(chip);
2310 	if (err < 0)
2311 		goto out_free;
2312 
2313 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2314 	chip->beep_mode = beep_mode[dev];
2315 #endif
2316 
2317 	/* create codec instances */
2318 	if (bus->codec_mask) {
2319 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2320 		if (err < 0)
2321 			goto out_free;
2322 	}
2323 
2324 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2325 	if (chip->fw) {
2326 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2327 					 chip->fw->data);
2328 		if (err < 0)
2329 			goto out_free;
2330 #ifndef CONFIG_PM
2331 		release_firmware(chip->fw); /* no longer needed */
2332 		chip->fw = NULL;
2333 #endif
2334 	}
2335 #endif
2336 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2337 		err = azx_codec_configure(chip);
2338 		if (err < 0)
2339 			goto out_free;
2340 	}
2341 
2342 	err = snd_card_register(chip->card);
2343 	if (err < 0)
2344 		goto out_free;
2345 
2346 	setup_vga_switcheroo_runtime_pm(chip);
2347 
2348 	chip->running = 1;
2349 	azx_add_card_list(chip);
2350 
2351 	set_default_power_save(chip);
2352 
2353 	if (azx_has_pm_runtime(chip)) {
2354 		pm_runtime_use_autosuspend(&pci->dev);
2355 		pm_runtime_put_autosuspend(&pci->dev);
2356 	}
2357 
2358 out_free:
2359 	if (err < 0) {
2360 		azx_free(chip);
2361 		return err;
2362 	}
2363 
2364 	if (!hda->need_i915_power)
2365 		display_power(chip, false);
2366 	complete_all(&hda->probe_wait);
2367 	to_hda_bus(bus)->bus_probing = 0;
2368 	return 0;
2369 }
2370 
2371 static void azx_remove(struct pci_dev *pci)
2372 {
2373 	struct snd_card *card = pci_get_drvdata(pci);
2374 	struct azx *chip;
2375 	struct hda_intel *hda;
2376 
2377 	if (card) {
2378 		/* cancel the pending probing work */
2379 		chip = card->private_data;
2380 		hda = container_of(chip, struct hda_intel, chip);
2381 		/* FIXME: below is an ugly workaround.
2382 		 * Both device_release_driver() and driver_probe_device()
2383 		 * take *both* the device's and its parent's lock before
2384 		 * calling the remove() and probe() callbacks.  The codec
2385 		 * probe takes the locks of both the codec itself and its
2386 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2387 		 * the PCI controller is unbound, it takes its lock, too
2388 		 * ==> ouch, a deadlock!
2389 		 * As a workaround, we unlock temporarily here the controller
2390 		 * device during cancel_work_sync() call.
2391 		 */
2392 		device_unlock(&pci->dev);
2393 		cancel_work_sync(&hda->probe_work);
2394 		device_lock(&pci->dev);
2395 
2396 		snd_card_free(card);
2397 	}
2398 }
2399 
2400 static void azx_shutdown(struct pci_dev *pci)
2401 {
2402 	struct snd_card *card = pci_get_drvdata(pci);
2403 	struct azx *chip;
2404 
2405 	if (!card)
2406 		return;
2407 	chip = card->private_data;
2408 	if (chip && chip->running)
2409 		azx_stop_chip(chip);
2410 }
2411 
2412 /* PCI IDs */
2413 static const struct pci_device_id azx_ids[] = {
2414 	/* CPT */
2415 	{ PCI_DEVICE(0x8086, 0x1c20),
2416 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2417 	/* PBG */
2418 	{ PCI_DEVICE(0x8086, 0x1d20),
2419 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2420 	/* Panther Point */
2421 	{ PCI_DEVICE(0x8086, 0x1e20),
2422 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2423 	/* Lynx Point */
2424 	{ PCI_DEVICE(0x8086, 0x8c20),
2425 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2426 	/* 9 Series */
2427 	{ PCI_DEVICE(0x8086, 0x8ca0),
2428 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2429 	/* Wellsburg */
2430 	{ PCI_DEVICE(0x8086, 0x8d20),
2431 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2432 	{ PCI_DEVICE(0x8086, 0x8d21),
2433 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2434 	/* Lewisburg */
2435 	{ PCI_DEVICE(0x8086, 0xa1f0),
2436 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2437 	{ PCI_DEVICE(0x8086, 0xa270),
2438 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2439 	/* Lynx Point-LP */
2440 	{ PCI_DEVICE(0x8086, 0x9c20),
2441 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2442 	/* Lynx Point-LP */
2443 	{ PCI_DEVICE(0x8086, 0x9c21),
2444 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2445 	/* Wildcat Point-LP */
2446 	{ PCI_DEVICE(0x8086, 0x9ca0),
2447 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2448 	/* Sunrise Point */
2449 	{ PCI_DEVICE(0x8086, 0xa170),
2450 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2451 	/* Sunrise Point-LP */
2452 	{ PCI_DEVICE(0x8086, 0x9d70),
2453 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2454 	/* Kabylake */
2455 	{ PCI_DEVICE(0x8086, 0xa171),
2456 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2457 	/* Kabylake-LP */
2458 	{ PCI_DEVICE(0x8086, 0x9d71),
2459 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2460 	/* Kabylake-H */
2461 	{ PCI_DEVICE(0x8086, 0xa2f0),
2462 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2463 	/* Coffelake */
2464 	{ PCI_DEVICE(0x8086, 0xa348),
2465 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2466 	/* Cannonlake */
2467 	{ PCI_DEVICE(0x8086, 0x9dc8),
2468 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2469 	/* CometLake-LP */
2470 	{ PCI_DEVICE(0x8086, 0x02C8),
2471 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2472 	/* CometLake-H */
2473 	{ PCI_DEVICE(0x8086, 0x06C8),
2474 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2475 	/* CometLake-S */
2476 	{ PCI_DEVICE(0x8086, 0xa3f0),
2477 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2478 	/* Icelake */
2479 	{ PCI_DEVICE(0x8086, 0x34c8),
2480 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2481 	/* Icelake-H */
2482 	{ PCI_DEVICE(0x8086, 0x3dc8),
2483 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2484 	/* Jasperlake */
2485 	{ PCI_DEVICE(0x8086, 0x38c8),
2486 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2487 	{ PCI_DEVICE(0x8086, 0x4dc8),
2488 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2489 	/* Tigerlake */
2490 	{ PCI_DEVICE(0x8086, 0xa0c8),
2491 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2492 	/* Tigerlake-H */
2493 	{ PCI_DEVICE(0x8086, 0x43c8),
2494 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2495 	/* Elkhart Lake */
2496 	{ PCI_DEVICE(0x8086, 0x4b55),
2497 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2498 	{ PCI_DEVICE(0x8086, 0x4b58),
2499 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2500 	/* Broxton-P(Apollolake) */
2501 	{ PCI_DEVICE(0x8086, 0x5a98),
2502 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2503 	/* Broxton-T */
2504 	{ PCI_DEVICE(0x8086, 0x1a98),
2505 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2506 	/* Gemini-Lake */
2507 	{ PCI_DEVICE(0x8086, 0x3198),
2508 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2509 	/* Haswell */
2510 	{ PCI_DEVICE(0x8086, 0x0a0c),
2511 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2512 	{ PCI_DEVICE(0x8086, 0x0c0c),
2513 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2514 	{ PCI_DEVICE(0x8086, 0x0d0c),
2515 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2516 	/* Broadwell */
2517 	{ PCI_DEVICE(0x8086, 0x160c),
2518 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2519 	/* 5 Series/3400 */
2520 	{ PCI_DEVICE(0x8086, 0x3b56),
2521 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2522 	/* Poulsbo */
2523 	{ PCI_DEVICE(0x8086, 0x811b),
2524 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2525 	/* Oaktrail */
2526 	{ PCI_DEVICE(0x8086, 0x080a),
2527 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2528 	/* BayTrail */
2529 	{ PCI_DEVICE(0x8086, 0x0f04),
2530 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2531 	/* Braswell */
2532 	{ PCI_DEVICE(0x8086, 0x2284),
2533 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2534 	/* ICH6 */
2535 	{ PCI_DEVICE(0x8086, 0x2668),
2536 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2537 	/* ICH7 */
2538 	{ PCI_DEVICE(0x8086, 0x27d8),
2539 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2540 	/* ESB2 */
2541 	{ PCI_DEVICE(0x8086, 0x269a),
2542 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2543 	/* ICH8 */
2544 	{ PCI_DEVICE(0x8086, 0x284b),
2545 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2546 	/* ICH9 */
2547 	{ PCI_DEVICE(0x8086, 0x293e),
2548 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2549 	/* ICH9 */
2550 	{ PCI_DEVICE(0x8086, 0x293f),
2551 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2552 	/* ICH10 */
2553 	{ PCI_DEVICE(0x8086, 0x3a3e),
2554 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2555 	/* ICH10 */
2556 	{ PCI_DEVICE(0x8086, 0x3a6e),
2557 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2558 	/* Generic Intel */
2559 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2560 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2561 	  .class_mask = 0xffffff,
2562 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2563 	/* ATI SB 450/600/700/800/900 */
2564 	{ PCI_DEVICE(0x1002, 0x437b),
2565 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2566 	{ PCI_DEVICE(0x1002, 0x4383),
2567 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2568 	/* AMD Hudson */
2569 	{ PCI_DEVICE(0x1022, 0x780d),
2570 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2571 	/* AMD, X370 & co */
2572 	{ PCI_DEVICE(0x1022, 0x1457),
2573 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2574 	/* AMD, X570 & co */
2575 	{ PCI_DEVICE(0x1022, 0x1487),
2576 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2577 	/* AMD Stoney */
2578 	{ PCI_DEVICE(0x1022, 0x157a),
2579 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2580 			 AZX_DCAPS_PM_RUNTIME },
2581 	/* AMD Raven */
2582 	{ PCI_DEVICE(0x1022, 0x15e3),
2583 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2584 	/* ATI HDMI */
2585 	{ PCI_DEVICE(0x1002, 0x0002),
2586 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2587 	{ PCI_DEVICE(0x1002, 0x1308),
2588 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2589 	{ PCI_DEVICE(0x1002, 0x157a),
2590 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2591 	{ PCI_DEVICE(0x1002, 0x15b3),
2592 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2593 	{ PCI_DEVICE(0x1002, 0x793b),
2594 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2595 	{ PCI_DEVICE(0x1002, 0x7919),
2596 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2597 	{ PCI_DEVICE(0x1002, 0x960f),
2598 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2599 	{ PCI_DEVICE(0x1002, 0x970f),
2600 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2601 	{ PCI_DEVICE(0x1002, 0x9840),
2602 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2603 	{ PCI_DEVICE(0x1002, 0xaa00),
2604 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2605 	{ PCI_DEVICE(0x1002, 0xaa08),
2606 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2607 	{ PCI_DEVICE(0x1002, 0xaa10),
2608 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2609 	{ PCI_DEVICE(0x1002, 0xaa18),
2610 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2611 	{ PCI_DEVICE(0x1002, 0xaa20),
2612 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2613 	{ PCI_DEVICE(0x1002, 0xaa28),
2614 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2615 	{ PCI_DEVICE(0x1002, 0xaa30),
2616 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2617 	{ PCI_DEVICE(0x1002, 0xaa38),
2618 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2619 	{ PCI_DEVICE(0x1002, 0xaa40),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2621 	{ PCI_DEVICE(0x1002, 0xaa48),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2623 	{ PCI_DEVICE(0x1002, 0xaa50),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2625 	{ PCI_DEVICE(0x1002, 0xaa58),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2627 	{ PCI_DEVICE(0x1002, 0xaa60),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2629 	{ PCI_DEVICE(0x1002, 0xaa68),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2631 	{ PCI_DEVICE(0x1002, 0xaa80),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2633 	{ PCI_DEVICE(0x1002, 0xaa88),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2635 	{ PCI_DEVICE(0x1002, 0xaa90),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2637 	{ PCI_DEVICE(0x1002, 0xaa98),
2638 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2639 	{ PCI_DEVICE(0x1002, 0x9902),
2640 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2641 	{ PCI_DEVICE(0x1002, 0xaaa0),
2642 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2643 	{ PCI_DEVICE(0x1002, 0xaaa8),
2644 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2645 	{ PCI_DEVICE(0x1002, 0xaab0),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2647 	{ PCI_DEVICE(0x1002, 0xaac0),
2648 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2649 	{ PCI_DEVICE(0x1002, 0xaac8),
2650 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2651 	{ PCI_DEVICE(0x1002, 0xaad8),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2653 	  AZX_DCAPS_PM_RUNTIME },
2654 	{ PCI_DEVICE(0x1002, 0xaae0),
2655 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2656 	  AZX_DCAPS_PM_RUNTIME },
2657 	{ PCI_DEVICE(0x1002, 0xaae8),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2659 	  AZX_DCAPS_PM_RUNTIME },
2660 	{ PCI_DEVICE(0x1002, 0xaaf0),
2661 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2662 	  AZX_DCAPS_PM_RUNTIME },
2663 	{ PCI_DEVICE(0x1002, 0xaaf8),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2665 	  AZX_DCAPS_PM_RUNTIME },
2666 	{ PCI_DEVICE(0x1002, 0xab00),
2667 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2668 	  AZX_DCAPS_PM_RUNTIME },
2669 	{ PCI_DEVICE(0x1002, 0xab08),
2670 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2671 	  AZX_DCAPS_PM_RUNTIME },
2672 	{ PCI_DEVICE(0x1002, 0xab10),
2673 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2674 	  AZX_DCAPS_PM_RUNTIME },
2675 	{ PCI_DEVICE(0x1002, 0xab18),
2676 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2677 	  AZX_DCAPS_PM_RUNTIME },
2678 	{ PCI_DEVICE(0x1002, 0xab20),
2679 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2680 	  AZX_DCAPS_PM_RUNTIME },
2681 	{ PCI_DEVICE(0x1002, 0xab28),
2682 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2683 	  AZX_DCAPS_PM_RUNTIME },
2684 	{ PCI_DEVICE(0x1002, 0xab38),
2685 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2686 	  AZX_DCAPS_PM_RUNTIME },
2687 	/* VIA VT8251/VT8237A */
2688 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2689 	/* VIA GFX VT7122/VX900 */
2690 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2691 	/* VIA GFX VT6122/VX11 */
2692 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2693 	/* SIS966 */
2694 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2695 	/* ULI M5461 */
2696 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2697 	/* NVIDIA MCP */
2698 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2699 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2700 	  .class_mask = 0xffffff,
2701 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2702 	/* Teradici */
2703 	{ PCI_DEVICE(0x6549, 0x1200),
2704 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2705 	{ PCI_DEVICE(0x6549, 0x2200),
2706 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2707 	/* Creative X-Fi (CA0110-IBG) */
2708 	/* CTHDA chips */
2709 	{ PCI_DEVICE(0x1102, 0x0010),
2710 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2711 	{ PCI_DEVICE(0x1102, 0x0012),
2712 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2713 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2714 	/* the following entry conflicts with snd-ctxfi driver,
2715 	 * as ctxfi driver mutates from HD-audio to native mode with
2716 	 * a special command sequence.
2717 	 */
2718 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2719 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2720 	  .class_mask = 0xffffff,
2721 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2722 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2723 #else
2724 	/* this entry seems still valid -- i.e. without emu20kx chip */
2725 	{ PCI_DEVICE(0x1102, 0x0009),
2726 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2727 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2728 #endif
2729 	/* CM8888 */
2730 	{ PCI_DEVICE(0x13f6, 0x5011),
2731 	  .driver_data = AZX_DRIVER_CMEDIA |
2732 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2733 	/* Vortex86MX */
2734 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2735 	/* VMware HDAudio */
2736 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2737 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2738 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2739 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2740 	  .class_mask = 0xffffff,
2741 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2742 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2743 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2744 	  .class_mask = 0xffffff,
2745 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2746 	/* Zhaoxin */
2747 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2748 	/* Loongson */
2749 	{ PCI_DEVICE(0x0014, 0x7a07), .driver_data = AZX_DRIVER_GENERIC },
2750 	{ 0, }
2751 };
2752 MODULE_DEVICE_TABLE(pci, azx_ids);
2753 
2754 /* pci_driver definition */
2755 static struct pci_driver azx_driver = {
2756 	.name = KBUILD_MODNAME,
2757 	.id_table = azx_ids,
2758 	.probe = azx_probe,
2759 	.remove = azx_remove,
2760 	.shutdown = azx_shutdown,
2761 	.driver = {
2762 		.pm = AZX_PM_OPS,
2763 	},
2764 };
2765 
2766 module_pci_driver(azx_driver);
2767