xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision 3d40aed8)
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/apple-gmux.h>
54 #include <linux/firmware.h>
55 #include <sound/hda_codec.h>
56 #include "hda_controller.h"
57 #include "hda_intel.h"
58 
59 #define CREATE_TRACE_POINTS
60 #include "hda_intel_trace.h"
61 
62 /* position fix mode */
63 enum {
64 	POS_FIX_AUTO,
65 	POS_FIX_LPIB,
66 	POS_FIX_POSBUF,
67 	POS_FIX_VIACOMBO,
68 	POS_FIX_COMBO,
69 	POS_FIX_SKL,
70 	POS_FIX_FIFO,
71 };
72 
73 /* Defines for ATI HD Audio support in SB450 south bridge */
74 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
75 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
76 
77 /* Defines for Nvidia HDA support */
78 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
79 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
80 #define NVIDIA_HDA_ISTRM_COH          0x4d
81 #define NVIDIA_HDA_OSTRM_COH          0x4c
82 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
83 
84 /* Defines for Intel SCH HDA snoop control */
85 #define INTEL_HDA_CGCTL	 0x48
86 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
87 #define INTEL_SCH_HDA_DEVC      0x78
88 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
89 
90 /* max number of SDs */
91 /* ICH, ATI and VIA have 4 playback and 4 capture */
92 #define ICH6_NUM_CAPTURE	4
93 #define ICH6_NUM_PLAYBACK	4
94 
95 /* ULI has 6 playback and 5 capture */
96 #define ULI_NUM_CAPTURE		5
97 #define ULI_NUM_PLAYBACK	6
98 
99 /* ATI HDMI may have up to 8 playbacks and 0 capture */
100 #define ATIHDMI_NUM_CAPTURE	0
101 #define ATIHDMI_NUM_PLAYBACK	8
102 
103 
104 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
105 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
106 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
107 static char *model[SNDRV_CARDS];
108 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
109 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
110 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
111 static int probe_only[SNDRV_CARDS];
112 static int jackpoll_ms[SNDRV_CARDS];
113 static int single_cmd = -1;
114 static int enable_msi = -1;
115 #ifdef CONFIG_SND_HDA_PATCH_LOADER
116 static char *patch[SNDRV_CARDS];
117 #endif
118 #ifdef CONFIG_SND_HDA_INPUT_BEEP
119 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
120 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
121 #endif
122 static bool dmic_detect = 1;
123 static bool ctl_dev_id = IS_ENABLED(CONFIG_SND_HDA_CTL_DEV_ID) ? 1 : 0;
124 
125 module_param_array(index, int, NULL, 0444);
126 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
127 module_param_array(id, charp, NULL, 0444);
128 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
129 module_param_array(enable, bool, NULL, 0444);
130 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
131 module_param_array(model, charp, NULL, 0444);
132 MODULE_PARM_DESC(model, "Use the given board model.");
133 module_param_array(position_fix, int, NULL, 0444);
134 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
135 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
136 module_param_array(bdl_pos_adj, int, NULL, 0644);
137 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
138 module_param_array(probe_mask, int, NULL, 0444);
139 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
140 module_param_array(probe_only, int, NULL, 0444);
141 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
142 module_param_array(jackpoll_ms, int, NULL, 0444);
143 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
144 module_param(single_cmd, bint, 0444);
145 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
146 		 "(for debugging only).");
147 module_param(enable_msi, bint, 0444);
148 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
149 #ifdef CONFIG_SND_HDA_PATCH_LOADER
150 module_param_array(patch, charp, NULL, 0444);
151 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
152 #endif
153 #ifdef CONFIG_SND_HDA_INPUT_BEEP
154 module_param_array(beep_mode, bool, NULL, 0444);
155 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
156 			    "(0=off, 1=on) (default=1).");
157 #endif
158 module_param(dmic_detect, bool, 0444);
159 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
160 			     "(0=off, 1=on) (default=1); "
161 		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
162 module_param(ctl_dev_id, bool, 0444);
163 MODULE_PARM_DESC(ctl_dev_id, "Use control device identifier (based on codec address).");
164 
165 #ifdef CONFIG_PM
166 static int param_set_xint(const char *val, const struct kernel_param *kp);
167 static const struct kernel_param_ops param_ops_xint = {
168 	.set = param_set_xint,
169 	.get = param_get_int,
170 };
171 #define param_check_xint param_check_int
172 
173 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
174 module_param(power_save, xint, 0644);
175 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
176 		 "(in second, 0 = disable).");
177 
178 static bool pm_blacklist = true;
179 module_param(pm_blacklist, bool, 0644);
180 MODULE_PARM_DESC(pm_blacklist, "Enable power-management denylist");
181 
182 /* reset the HD-audio controller in power save mode.
183  * this may give more power-saving, but will take longer time to
184  * wake up.
185  */
186 static bool power_save_controller = 1;
187 module_param(power_save_controller, bool, 0644);
188 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
189 #else
190 #define power_save	0
191 #endif /* CONFIG_PM */
192 
193 static int align_buffer_size = -1;
194 module_param(align_buffer_size, bint, 0644);
195 MODULE_PARM_DESC(align_buffer_size,
196 		"Force buffer and period sizes to be multiple of 128 bytes.");
197 
198 #ifdef CONFIG_X86
199 static int hda_snoop = -1;
200 module_param_named(snoop, hda_snoop, bint, 0444);
201 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
202 #else
203 #define hda_snoop		true
204 #endif
205 
206 
207 MODULE_LICENSE("GPL");
208 MODULE_DESCRIPTION("Intel HDA driver");
209 
210 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
211 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
212 #define SUPPORT_VGA_SWITCHEROO
213 #endif
214 #endif
215 
216 
217 /*
218  */
219 
220 /* driver types */
221 enum {
222 	AZX_DRIVER_ICH,
223 	AZX_DRIVER_PCH,
224 	AZX_DRIVER_SCH,
225 	AZX_DRIVER_SKL,
226 	AZX_DRIVER_HDMI,
227 	AZX_DRIVER_ATI,
228 	AZX_DRIVER_ATIHDMI,
229 	AZX_DRIVER_ATIHDMI_NS,
230 	AZX_DRIVER_GFHDMI,
231 	AZX_DRIVER_VIA,
232 	AZX_DRIVER_SIS,
233 	AZX_DRIVER_ULI,
234 	AZX_DRIVER_NVIDIA,
235 	AZX_DRIVER_TERA,
236 	AZX_DRIVER_CTX,
237 	AZX_DRIVER_CTHDA,
238 	AZX_DRIVER_CMEDIA,
239 	AZX_DRIVER_ZHAOXIN,
240 	AZX_DRIVER_LOONGSON,
241 	AZX_DRIVER_GENERIC,
242 	AZX_NUM_DRIVERS, /* keep this as last entry */
243 };
244 
245 #define azx_get_snoop_type(chip) \
246 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
247 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
248 
249 /* quirks for old Intel chipsets */
250 #define AZX_DCAPS_INTEL_ICH \
251 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
252 
253 /* quirks for Intel PCH */
254 #define AZX_DCAPS_INTEL_PCH_BASE \
255 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
256 	 AZX_DCAPS_SNOOP_TYPE(SCH))
257 
258 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
259 #define AZX_DCAPS_INTEL_PCH_NOPM \
260 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
261 
262 /* PCH for HSW/BDW; with runtime PM */
263 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
264 #define AZX_DCAPS_INTEL_PCH \
265 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
266 
267 /* HSW HDMI */
268 #define AZX_DCAPS_INTEL_HASWELL \
269 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
270 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
271 	 AZX_DCAPS_SNOOP_TYPE(SCH))
272 
273 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
274 #define AZX_DCAPS_INTEL_BROADWELL \
275 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
276 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
277 	 AZX_DCAPS_SNOOP_TYPE(SCH))
278 
279 #define AZX_DCAPS_INTEL_BAYTRAIL \
280 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
281 
282 #define AZX_DCAPS_INTEL_BRASWELL \
283 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
284 	 AZX_DCAPS_I915_COMPONENT)
285 
286 #define AZX_DCAPS_INTEL_SKYLAKE \
287 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
288 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
289 
290 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
291 
292 /* quirks for ATI SB / AMD Hudson */
293 #define AZX_DCAPS_PRESET_ATI_SB \
294 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
295 	 AZX_DCAPS_SNOOP_TYPE(ATI))
296 
297 /* quirks for ATI/AMD HDMI */
298 #define AZX_DCAPS_PRESET_ATI_HDMI \
299 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
300 	 AZX_DCAPS_NO_MSI64)
301 
302 /* quirks for ATI HDMI with snoop off */
303 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
304 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
305 
306 /* quirks for AMD SB */
307 #define AZX_DCAPS_PRESET_AMD_SB \
308 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
309 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
310 	 AZX_DCAPS_RETRY_PROBE)
311 
312 /* quirks for Nvidia */
313 #define AZX_DCAPS_PRESET_NVIDIA \
314 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
315 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
316 
317 #define AZX_DCAPS_PRESET_CTHDA \
318 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
319 	 AZX_DCAPS_NO_64BIT |\
320 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
321 
322 /*
323  * vga_switcheroo support
324  */
325 #ifdef SUPPORT_VGA_SWITCHEROO
326 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
327 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
328 #else
329 #define use_vga_switcheroo(chip)	0
330 #define needs_eld_notify_link(chip)	false
331 #endif
332 
333 #define CONTROLLER_IN_GPU(pci) (((pci)->vendor == 0x8086) &&         \
334 				       (((pci)->device == 0x0a0c) || \
335 					((pci)->device == 0x0c0c) || \
336 					((pci)->device == 0x0d0c) || \
337 					((pci)->device == 0x160c) || \
338 					((pci)->device == 0x490d) || \
339 					((pci)->device == 0x4f90) || \
340 					((pci)->device == 0x4f91) || \
341 					((pci)->device == 0x4f92)))
342 
343 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
344 
345 static const char * const driver_short_names[] = {
346 	[AZX_DRIVER_ICH] = "HDA Intel",
347 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
348 	[AZX_DRIVER_SCH] = "HDA Intel MID",
349 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
350 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
351 	[AZX_DRIVER_ATI] = "HDA ATI SB",
352 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
353 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
354 	[AZX_DRIVER_GFHDMI] = "HDA GF HDMI",
355 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
356 	[AZX_DRIVER_SIS] = "HDA SIS966",
357 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
358 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
359 	[AZX_DRIVER_TERA] = "HDA Teradici",
360 	[AZX_DRIVER_CTX] = "HDA Creative",
361 	[AZX_DRIVER_CTHDA] = "HDA Creative",
362 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
363 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
364 	[AZX_DRIVER_LOONGSON] = "HDA Loongson",
365 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
366 };
367 
368 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
369 static void set_default_power_save(struct azx *chip);
370 
371 /*
372  * initialize the PCI registers
373  */
374 /* update bits in a PCI register byte */
375 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
376 			    unsigned char mask, unsigned char val)
377 {
378 	unsigned char data;
379 
380 	pci_read_config_byte(pci, reg, &data);
381 	data &= ~mask;
382 	data |= (val & mask);
383 	pci_write_config_byte(pci, reg, data);
384 }
385 
386 static void azx_init_pci(struct azx *chip)
387 {
388 	int snoop_type = azx_get_snoop_type(chip);
389 
390 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
391 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
392 	 * Ensuring these bits are 0 clears playback static on some HD Audio
393 	 * codecs.
394 	 * The PCI register TCSEL is defined in the Intel manuals.
395 	 */
396 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
397 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
398 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
399 	}
400 
401 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
402 	 * we need to enable snoop.
403 	 */
404 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
405 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
406 			azx_snoop(chip));
407 		update_pci_byte(chip->pci,
408 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
409 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
410 	}
411 
412 	/* For NVIDIA HDA, enable snoop */
413 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
414 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
415 			azx_snoop(chip));
416 		update_pci_byte(chip->pci,
417 				NVIDIA_HDA_TRANSREG_ADDR,
418 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
419 		update_pci_byte(chip->pci,
420 				NVIDIA_HDA_ISTRM_COH,
421 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
422 		update_pci_byte(chip->pci,
423 				NVIDIA_HDA_OSTRM_COH,
424 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
425 	}
426 
427 	/* Enable SCH/PCH snoop if needed */
428 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
429 		unsigned short snoop;
430 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
431 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
432 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
433 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
434 			if (!azx_snoop(chip))
435 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
436 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
437 			pci_read_config_word(chip->pci,
438 				INTEL_SCH_HDA_DEVC, &snoop);
439 		}
440 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
441 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
442 			"Disabled" : "Enabled");
443         }
444 }
445 
446 /*
447  * In BXT-P A0, HD-Audio DMA requests is later than expected,
448  * and makes an audio stream sensitive to system latencies when
449  * 24/32 bits are playing.
450  * Adjusting threshold of DMA fifo to force the DMA request
451  * sooner to improve latency tolerance at the expense of power.
452  */
453 static void bxt_reduce_dma_latency(struct azx *chip)
454 {
455 	u32 val;
456 
457 	val = azx_readl(chip, VS_EM4L);
458 	val &= (0x3 << 20);
459 	azx_writel(chip, VS_EM4L, val);
460 }
461 
462 /*
463  * ML_LCAP bits:
464  *  bit 0: 6 MHz Supported
465  *  bit 1: 12 MHz Supported
466  *  bit 2: 24 MHz Supported
467  *  bit 3: 48 MHz Supported
468  *  bit 4: 96 MHz Supported
469  *  bit 5: 192 MHz Supported
470  */
471 static int intel_get_lctl_scf(struct azx *chip)
472 {
473 	struct hdac_bus *bus = azx_bus(chip);
474 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
475 	u32 val, t;
476 	int i;
477 
478 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
479 
480 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
481 		t = preferred_bits[i];
482 		if (val & (1 << t))
483 			return t;
484 	}
485 
486 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
487 	return 0;
488 }
489 
490 static int intel_ml_lctl_set_power(struct azx *chip, int state)
491 {
492 	struct hdac_bus *bus = azx_bus(chip);
493 	u32 val;
494 	int timeout;
495 
496 	/*
497 	 * Changes to LCTL.SCF are only needed for the first multi-link dealing
498 	 * with external codecs
499 	 */
500 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
501 	val &= ~AZX_ML_LCTL_SPA;
502 	val |= state << AZX_ML_LCTL_SPA_SHIFT;
503 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
504 	/* wait for CPA */
505 	timeout = 50;
506 	while (timeout) {
507 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
508 		    AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
509 			return 0;
510 		timeout--;
511 		udelay(10);
512 	}
513 
514 	return -1;
515 }
516 
517 static void intel_init_lctl(struct azx *chip)
518 {
519 	struct hdac_bus *bus = azx_bus(chip);
520 	u32 val;
521 	int ret;
522 
523 	/* 0. check lctl register value is correct or not */
524 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
525 	/* only perform additional configurations if the SCF is initially based on 6MHz */
526 	if ((val & AZX_ML_LCTL_SCF) != 0)
527 		return;
528 
529 	/*
530 	 * Before operating on SPA, CPA must match SPA.
531 	 * Any deviation may result in undefined behavior.
532 	 */
533 	if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
534 		((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
535 		return;
536 
537 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
538 	ret = intel_ml_lctl_set_power(chip, 0);
539 	udelay(100);
540 	if (ret)
541 		goto set_spa;
542 
543 	/* 2. update SCF to select an audio clock different from 6MHz */
544 	val &= ~AZX_ML_LCTL_SCF;
545 	val |= intel_get_lctl_scf(chip);
546 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
547 
548 set_spa:
549 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
550 	intel_ml_lctl_set_power(chip, 1);
551 	udelay(100);
552 }
553 
554 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
555 {
556 	struct hdac_bus *bus = azx_bus(chip);
557 	struct pci_dev *pci = chip->pci;
558 	u32 val;
559 
560 	snd_hdac_set_codec_wakeup(bus, true);
561 	if (chip->driver_type == AZX_DRIVER_SKL) {
562 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
563 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
564 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
565 	}
566 	azx_init_chip(chip, full_reset);
567 	if (chip->driver_type == AZX_DRIVER_SKL) {
568 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
569 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
570 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
571 	}
572 
573 	snd_hdac_set_codec_wakeup(bus, false);
574 
575 	/* reduce dma latency to avoid noise */
576 	if (IS_BXT(pci))
577 		bxt_reduce_dma_latency(chip);
578 
579 	if (bus->mlcap != NULL)
580 		intel_init_lctl(chip);
581 }
582 
583 /* calculate runtime delay from LPIB */
584 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
585 				   unsigned int pos)
586 {
587 	struct snd_pcm_substream *substream = azx_dev->core.substream;
588 	int stream = substream->stream;
589 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
590 	int delay;
591 
592 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
593 		delay = pos - lpib_pos;
594 	else
595 		delay = lpib_pos - pos;
596 	if (delay < 0) {
597 		if (delay >= azx_dev->core.delay_negative_threshold)
598 			delay = 0;
599 		else
600 			delay += azx_dev->core.bufsize;
601 	}
602 
603 	if (delay >= azx_dev->core.period_bytes) {
604 		dev_info(chip->card->dev,
605 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
606 			 delay, azx_dev->core.period_bytes);
607 		delay = 0;
608 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
609 		chip->get_delay[stream] = NULL;
610 	}
611 
612 	return bytes_to_frames(substream->runtime, delay);
613 }
614 
615 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
616 
617 /* called from IRQ */
618 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
619 {
620 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
621 	int ok;
622 
623 	ok = azx_position_ok(chip, azx_dev);
624 	if (ok == 1) {
625 		azx_dev->irq_pending = 0;
626 		return ok;
627 	} else if (ok == 0) {
628 		/* bogus IRQ, process it later */
629 		azx_dev->irq_pending = 1;
630 		schedule_work(&hda->irq_pending_work);
631 	}
632 	return 0;
633 }
634 
635 #define display_power(chip, enable) \
636 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
637 
638 /*
639  * Check whether the current DMA position is acceptable for updating
640  * periods.  Returns non-zero if it's OK.
641  *
642  * Many HD-audio controllers appear pretty inaccurate about
643  * the update-IRQ timing.  The IRQ is issued before actually the
644  * data is processed.  So, we need to process it afterwords in a
645  * workqueue.
646  *
647  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
648  */
649 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
650 {
651 	struct snd_pcm_substream *substream = azx_dev->core.substream;
652 	struct snd_pcm_runtime *runtime = substream->runtime;
653 	int stream = substream->stream;
654 	u32 wallclk;
655 	unsigned int pos;
656 	snd_pcm_uframes_t hwptr, target;
657 
658 	/*
659 	 * The value of the WALLCLK register is always 0
660 	 * on the Loongson controller, so we return directly.
661 	 */
662 	if (chip->driver_type == AZX_DRIVER_LOONGSON)
663 		return 1;
664 
665 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
666 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
667 		return -1;	/* bogus (too early) interrupt */
668 
669 	if (chip->get_position[stream])
670 		pos = chip->get_position[stream](chip, azx_dev);
671 	else { /* use the position buffer as default */
672 		pos = azx_get_pos_posbuf(chip, azx_dev);
673 		if (!pos || pos == (u32)-1) {
674 			dev_info(chip->card->dev,
675 				 "Invalid position buffer, using LPIB read method instead.\n");
676 			chip->get_position[stream] = azx_get_pos_lpib;
677 			if (chip->get_position[0] == azx_get_pos_lpib &&
678 			    chip->get_position[1] == azx_get_pos_lpib)
679 				azx_bus(chip)->use_posbuf = false;
680 			pos = azx_get_pos_lpib(chip, azx_dev);
681 			chip->get_delay[stream] = NULL;
682 		} else {
683 			chip->get_position[stream] = azx_get_pos_posbuf;
684 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
685 				chip->get_delay[stream] = azx_get_delay_from_lpib;
686 		}
687 	}
688 
689 	if (pos >= azx_dev->core.bufsize)
690 		pos = 0;
691 
692 	if (WARN_ONCE(!azx_dev->core.period_bytes,
693 		      "hda-intel: zero azx_dev->period_bytes"))
694 		return -1; /* this shouldn't happen! */
695 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
696 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
697 		/* NG - it's below the first next period boundary */
698 		return chip->bdl_pos_adj ? 0 : -1;
699 	azx_dev->core.start_wallclk += wallclk;
700 
701 	if (azx_dev->core.no_period_wakeup)
702 		return 1; /* OK, no need to check period boundary */
703 
704 	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
705 		return 1; /* OK, already in hwptr updating process */
706 
707 	/* check whether the period gets really elapsed */
708 	pos = bytes_to_frames(runtime, pos);
709 	hwptr = runtime->hw_ptr_base + pos;
710 	if (hwptr < runtime->status->hw_ptr)
711 		hwptr += runtime->buffer_size;
712 	target = runtime->hw_ptr_interrupt + runtime->period_size;
713 	if (hwptr < target) {
714 		/* too early wakeup, process it later */
715 		return chip->bdl_pos_adj ? 0 : -1;
716 	}
717 
718 	return 1; /* OK, it's fine */
719 }
720 
721 /*
722  * The work for pending PCM period updates.
723  */
724 static void azx_irq_pending_work(struct work_struct *work)
725 {
726 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
727 	struct azx *chip = &hda->chip;
728 	struct hdac_bus *bus = azx_bus(chip);
729 	struct hdac_stream *s;
730 	int pending, ok;
731 
732 	if (!hda->irq_pending_warned) {
733 		dev_info(chip->card->dev,
734 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
735 			 chip->card->number);
736 		hda->irq_pending_warned = 1;
737 	}
738 
739 	for (;;) {
740 		pending = 0;
741 		spin_lock_irq(&bus->reg_lock);
742 		list_for_each_entry(s, &bus->stream_list, list) {
743 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
744 			if (!azx_dev->irq_pending ||
745 			    !s->substream ||
746 			    !s->running)
747 				continue;
748 			ok = azx_position_ok(chip, azx_dev);
749 			if (ok > 0) {
750 				azx_dev->irq_pending = 0;
751 				spin_unlock(&bus->reg_lock);
752 				snd_pcm_period_elapsed(s->substream);
753 				spin_lock(&bus->reg_lock);
754 			} else if (ok < 0) {
755 				pending = 0;	/* too early */
756 			} else
757 				pending++;
758 		}
759 		spin_unlock_irq(&bus->reg_lock);
760 		if (!pending)
761 			return;
762 		msleep(1);
763 	}
764 }
765 
766 /* clear irq_pending flags and assure no on-going workq */
767 static void azx_clear_irq_pending(struct azx *chip)
768 {
769 	struct hdac_bus *bus = azx_bus(chip);
770 	struct hdac_stream *s;
771 
772 	spin_lock_irq(&bus->reg_lock);
773 	list_for_each_entry(s, &bus->stream_list, list) {
774 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
775 		azx_dev->irq_pending = 0;
776 	}
777 	spin_unlock_irq(&bus->reg_lock);
778 }
779 
780 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
781 {
782 	struct hdac_bus *bus = azx_bus(chip);
783 
784 	if (request_irq(chip->pci->irq, azx_interrupt,
785 			chip->msi ? 0 : IRQF_SHARED,
786 			chip->card->irq_descr, chip)) {
787 		dev_err(chip->card->dev,
788 			"unable to grab IRQ %d, disabling device\n",
789 			chip->pci->irq);
790 		if (do_disconnect)
791 			snd_card_disconnect(chip->card);
792 		return -1;
793 	}
794 	bus->irq = chip->pci->irq;
795 	chip->card->sync_irq = bus->irq;
796 	pci_intx(chip->pci, !chip->msi);
797 	return 0;
798 }
799 
800 /* get the current DMA position with correction on VIA chips */
801 static unsigned int azx_via_get_position(struct azx *chip,
802 					 struct azx_dev *azx_dev)
803 {
804 	unsigned int link_pos, mini_pos, bound_pos;
805 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
806 	unsigned int fifo_size;
807 
808 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
809 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
810 		/* Playback, no problem using link position */
811 		return link_pos;
812 	}
813 
814 	/* Capture */
815 	/* For new chipset,
816 	 * use mod to get the DMA position just like old chipset
817 	 */
818 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
819 	mod_dma_pos %= azx_dev->core.period_bytes;
820 
821 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
822 
823 	if (azx_dev->insufficient) {
824 		/* Link position never gather than FIFO size */
825 		if (link_pos <= fifo_size)
826 			return 0;
827 
828 		azx_dev->insufficient = 0;
829 	}
830 
831 	if (link_pos <= fifo_size)
832 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
833 	else
834 		mini_pos = link_pos - fifo_size;
835 
836 	/* Find nearest previous boudary */
837 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
838 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
839 	if (mod_link_pos >= fifo_size)
840 		bound_pos = link_pos - mod_link_pos;
841 	else if (mod_dma_pos >= mod_mini_pos)
842 		bound_pos = mini_pos - mod_mini_pos;
843 	else {
844 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
845 		if (bound_pos >= azx_dev->core.bufsize)
846 			bound_pos = 0;
847 	}
848 
849 	/* Calculate real DMA position we want */
850 	return bound_pos + mod_dma_pos;
851 }
852 
853 #define AMD_FIFO_SIZE	32
854 
855 /* get the current DMA position with FIFO size correction */
856 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
857 {
858 	struct snd_pcm_substream *substream = azx_dev->core.substream;
859 	struct snd_pcm_runtime *runtime = substream->runtime;
860 	unsigned int pos, delay;
861 
862 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
863 	if (!runtime)
864 		return pos;
865 
866 	runtime->delay = AMD_FIFO_SIZE;
867 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
868 	if (azx_dev->insufficient) {
869 		if (pos < delay) {
870 			delay = pos;
871 			runtime->delay = bytes_to_frames(runtime, pos);
872 		} else {
873 			azx_dev->insufficient = 0;
874 		}
875 	}
876 
877 	/* correct the DMA position for capture stream */
878 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
879 		if (pos < delay)
880 			pos += azx_dev->core.bufsize;
881 		pos -= delay;
882 	}
883 
884 	return pos;
885 }
886 
887 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
888 				   unsigned int pos)
889 {
890 	struct snd_pcm_substream *substream = azx_dev->core.substream;
891 
892 	/* just read back the calculated value in the above */
893 	return substream->runtime->delay;
894 }
895 
896 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
897 {
898 	azx_stop_chip(chip);
899 	if (!skip_link_reset)
900 		azx_enter_link_reset(chip);
901 	azx_clear_irq_pending(chip);
902 	display_power(chip, false);
903 }
904 
905 #ifdef CONFIG_PM
906 static DEFINE_MUTEX(card_list_lock);
907 static LIST_HEAD(card_list);
908 
909 static void azx_shutdown_chip(struct azx *chip)
910 {
911 	__azx_shutdown_chip(chip, false);
912 }
913 
914 static void azx_add_card_list(struct azx *chip)
915 {
916 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
917 	mutex_lock(&card_list_lock);
918 	list_add(&hda->list, &card_list);
919 	mutex_unlock(&card_list_lock);
920 }
921 
922 static void azx_del_card_list(struct azx *chip)
923 {
924 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
925 	mutex_lock(&card_list_lock);
926 	list_del_init(&hda->list);
927 	mutex_unlock(&card_list_lock);
928 }
929 
930 /* trigger power-save check at writing parameter */
931 static int param_set_xint(const char *val, const struct kernel_param *kp)
932 {
933 	struct hda_intel *hda;
934 	struct azx *chip;
935 	int prev = power_save;
936 	int ret = param_set_int(val, kp);
937 
938 	if (ret || prev == power_save)
939 		return ret;
940 
941 	mutex_lock(&card_list_lock);
942 	list_for_each_entry(hda, &card_list, list) {
943 		chip = &hda->chip;
944 		if (!hda->probe_continued || chip->disabled)
945 			continue;
946 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
947 	}
948 	mutex_unlock(&card_list_lock);
949 	return 0;
950 }
951 
952 /*
953  * power management
954  */
955 static bool azx_is_pm_ready(struct snd_card *card)
956 {
957 	struct azx *chip;
958 	struct hda_intel *hda;
959 
960 	if (!card)
961 		return false;
962 	chip = card->private_data;
963 	hda = container_of(chip, struct hda_intel, chip);
964 	if (chip->disabled || hda->init_failed || !chip->running)
965 		return false;
966 	return true;
967 }
968 
969 static void __azx_runtime_resume(struct azx *chip)
970 {
971 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
972 	struct hdac_bus *bus = azx_bus(chip);
973 	struct hda_codec *codec;
974 	int status;
975 
976 	display_power(chip, true);
977 	if (hda->need_i915_power)
978 		snd_hdac_i915_set_bclk(bus);
979 
980 	/* Read STATESTS before controller reset */
981 	status = azx_readw(chip, STATESTS);
982 
983 	azx_init_pci(chip);
984 	hda_intel_init_chip(chip, true);
985 
986 	/* Avoid codec resume if runtime resume is for system suspend */
987 	if (!chip->pm_prepared) {
988 		list_for_each_codec(codec, &chip->bus) {
989 			if (codec->relaxed_resume)
990 				continue;
991 
992 			if (codec->forced_resume || (status & (1 << codec->addr)))
993 				pm_request_resume(hda_codec_dev(codec));
994 		}
995 	}
996 
997 	/* power down again for link-controlled chips */
998 	if (!hda->need_i915_power)
999 		display_power(chip, false);
1000 }
1001 
1002 #ifdef CONFIG_PM_SLEEP
1003 static int azx_prepare(struct device *dev)
1004 {
1005 	struct snd_card *card = dev_get_drvdata(dev);
1006 	struct azx *chip;
1007 
1008 	if (!azx_is_pm_ready(card))
1009 		return 0;
1010 
1011 	chip = card->private_data;
1012 	chip->pm_prepared = 1;
1013 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1014 
1015 	flush_work(&azx_bus(chip)->unsol_work);
1016 
1017 	/* HDA controller always requires different WAKEEN for runtime suspend
1018 	 * and system suspend, so don't use direct-complete here.
1019 	 */
1020 	return 0;
1021 }
1022 
1023 static void azx_complete(struct device *dev)
1024 {
1025 	struct snd_card *card = dev_get_drvdata(dev);
1026 	struct azx *chip;
1027 
1028 	if (!azx_is_pm_ready(card))
1029 		return;
1030 
1031 	chip = card->private_data;
1032 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1033 	chip->pm_prepared = 0;
1034 }
1035 
1036 static int azx_suspend(struct device *dev)
1037 {
1038 	struct snd_card *card = dev_get_drvdata(dev);
1039 	struct azx *chip;
1040 	struct hdac_bus *bus;
1041 
1042 	if (!azx_is_pm_ready(card))
1043 		return 0;
1044 
1045 	chip = card->private_data;
1046 	bus = azx_bus(chip);
1047 	azx_shutdown_chip(chip);
1048 	if (bus->irq >= 0) {
1049 		free_irq(bus->irq, chip);
1050 		bus->irq = -1;
1051 		chip->card->sync_irq = -1;
1052 	}
1053 
1054 	if (chip->msi)
1055 		pci_disable_msi(chip->pci);
1056 
1057 	trace_azx_suspend(chip);
1058 	return 0;
1059 }
1060 
1061 static int azx_resume(struct device *dev)
1062 {
1063 	struct snd_card *card = dev_get_drvdata(dev);
1064 	struct azx *chip;
1065 
1066 	if (!azx_is_pm_ready(card))
1067 		return 0;
1068 
1069 	chip = card->private_data;
1070 	if (chip->msi)
1071 		if (pci_enable_msi(chip->pci) < 0)
1072 			chip->msi = 0;
1073 	if (azx_acquire_irq(chip, 1) < 0)
1074 		return -EIO;
1075 
1076 	__azx_runtime_resume(chip);
1077 
1078 	trace_azx_resume(chip);
1079 	return 0;
1080 }
1081 
1082 /* put codec down to D3 at hibernation for Intel SKL+;
1083  * otherwise BIOS may still access the codec and screw up the driver
1084  */
1085 static int azx_freeze_noirq(struct device *dev)
1086 {
1087 	struct snd_card *card = dev_get_drvdata(dev);
1088 	struct azx *chip = card->private_data;
1089 	struct pci_dev *pci = to_pci_dev(dev);
1090 
1091 	if (!azx_is_pm_ready(card))
1092 		return 0;
1093 	if (chip->driver_type == AZX_DRIVER_SKL)
1094 		pci_set_power_state(pci, PCI_D3hot);
1095 
1096 	return 0;
1097 }
1098 
1099 static int azx_thaw_noirq(struct device *dev)
1100 {
1101 	struct snd_card *card = dev_get_drvdata(dev);
1102 	struct azx *chip = card->private_data;
1103 	struct pci_dev *pci = to_pci_dev(dev);
1104 
1105 	if (!azx_is_pm_ready(card))
1106 		return 0;
1107 	if (chip->driver_type == AZX_DRIVER_SKL)
1108 		pci_set_power_state(pci, PCI_D0);
1109 
1110 	return 0;
1111 }
1112 #endif /* CONFIG_PM_SLEEP */
1113 
1114 static int azx_runtime_suspend(struct device *dev)
1115 {
1116 	struct snd_card *card = dev_get_drvdata(dev);
1117 	struct azx *chip;
1118 
1119 	if (!azx_is_pm_ready(card))
1120 		return 0;
1121 	chip = card->private_data;
1122 
1123 	/* enable controller wake up event */
1124 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1125 
1126 	azx_shutdown_chip(chip);
1127 	trace_azx_runtime_suspend(chip);
1128 	return 0;
1129 }
1130 
1131 static int azx_runtime_resume(struct device *dev)
1132 {
1133 	struct snd_card *card = dev_get_drvdata(dev);
1134 	struct azx *chip;
1135 
1136 	if (!azx_is_pm_ready(card))
1137 		return 0;
1138 	chip = card->private_data;
1139 	__azx_runtime_resume(chip);
1140 
1141 	/* disable controller Wake Up event*/
1142 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1143 
1144 	trace_azx_runtime_resume(chip);
1145 	return 0;
1146 }
1147 
1148 static int azx_runtime_idle(struct device *dev)
1149 {
1150 	struct snd_card *card = dev_get_drvdata(dev);
1151 	struct azx *chip;
1152 	struct hda_intel *hda;
1153 
1154 	if (!card)
1155 		return 0;
1156 
1157 	chip = card->private_data;
1158 	hda = container_of(chip, struct hda_intel, chip);
1159 	if (chip->disabled || hda->init_failed)
1160 		return 0;
1161 
1162 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1163 	    azx_bus(chip)->codec_powered || !chip->running)
1164 		return -EBUSY;
1165 
1166 	/* ELD notification gets broken when HD-audio bus is off */
1167 	if (needs_eld_notify_link(chip))
1168 		return -EBUSY;
1169 
1170 	return 0;
1171 }
1172 
1173 static const struct dev_pm_ops azx_pm = {
1174 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1175 #ifdef CONFIG_PM_SLEEP
1176 	.prepare = azx_prepare,
1177 	.complete = azx_complete,
1178 	.freeze_noirq = azx_freeze_noirq,
1179 	.thaw_noirq = azx_thaw_noirq,
1180 #endif
1181 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1182 };
1183 
1184 #define AZX_PM_OPS	&azx_pm
1185 #else
1186 #define azx_add_card_list(chip) /* NOP */
1187 #define azx_del_card_list(chip) /* NOP */
1188 #define AZX_PM_OPS	NULL
1189 #endif /* CONFIG_PM */
1190 
1191 
1192 static int azx_probe_continue(struct azx *chip);
1193 
1194 #ifdef SUPPORT_VGA_SWITCHEROO
1195 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1196 
1197 static void azx_vs_set_state(struct pci_dev *pci,
1198 			     enum vga_switcheroo_state state)
1199 {
1200 	struct snd_card *card = pci_get_drvdata(pci);
1201 	struct azx *chip = card->private_data;
1202 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1203 	struct hda_codec *codec;
1204 	bool disabled;
1205 
1206 	wait_for_completion(&hda->probe_wait);
1207 	if (hda->init_failed)
1208 		return;
1209 
1210 	disabled = (state == VGA_SWITCHEROO_OFF);
1211 	if (chip->disabled == disabled)
1212 		return;
1213 
1214 	if (!hda->probe_continued) {
1215 		chip->disabled = disabled;
1216 		if (!disabled) {
1217 			dev_info(chip->card->dev,
1218 				 "Start delayed initialization\n");
1219 			if (azx_probe_continue(chip) < 0)
1220 				dev_err(chip->card->dev, "initialization error\n");
1221 		}
1222 	} else {
1223 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1224 			 disabled ? "Disabling" : "Enabling");
1225 		if (disabled) {
1226 			list_for_each_codec(codec, &chip->bus) {
1227 				pm_runtime_suspend(hda_codec_dev(codec));
1228 				pm_runtime_disable(hda_codec_dev(codec));
1229 			}
1230 			pm_runtime_suspend(card->dev);
1231 			pm_runtime_disable(card->dev);
1232 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1233 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1234 			 * put ourselves there */
1235 			pci->current_state = PCI_D3cold;
1236 			chip->disabled = true;
1237 			if (snd_hda_lock_devices(&chip->bus))
1238 				dev_warn(chip->card->dev,
1239 					 "Cannot lock devices!\n");
1240 		} else {
1241 			snd_hda_unlock_devices(&chip->bus);
1242 			chip->disabled = false;
1243 			pm_runtime_enable(card->dev);
1244 			list_for_each_codec(codec, &chip->bus) {
1245 				pm_runtime_enable(hda_codec_dev(codec));
1246 				pm_runtime_resume(hda_codec_dev(codec));
1247 			}
1248 		}
1249 	}
1250 }
1251 
1252 static bool azx_vs_can_switch(struct pci_dev *pci)
1253 {
1254 	struct snd_card *card = pci_get_drvdata(pci);
1255 	struct azx *chip = card->private_data;
1256 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1257 
1258 	wait_for_completion(&hda->probe_wait);
1259 	if (hda->init_failed)
1260 		return false;
1261 	if (chip->disabled || !hda->probe_continued)
1262 		return true;
1263 	if (snd_hda_lock_devices(&chip->bus))
1264 		return false;
1265 	snd_hda_unlock_devices(&chip->bus);
1266 	return true;
1267 }
1268 
1269 /*
1270  * The discrete GPU cannot power down unless the HDA controller runtime
1271  * suspends, so activate runtime PM on codecs even if power_save == 0.
1272  */
1273 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1274 {
1275 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1276 	struct hda_codec *codec;
1277 
1278 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1279 		list_for_each_codec(codec, &chip->bus)
1280 			codec->auto_runtime_pm = 1;
1281 		/* reset the power save setup */
1282 		if (chip->running)
1283 			set_default_power_save(chip);
1284 	}
1285 }
1286 
1287 static void azx_vs_gpu_bound(struct pci_dev *pci,
1288 			     enum vga_switcheroo_client_id client_id)
1289 {
1290 	struct snd_card *card = pci_get_drvdata(pci);
1291 	struct azx *chip = card->private_data;
1292 
1293 	if (client_id == VGA_SWITCHEROO_DIS)
1294 		chip->bus.keep_power = 0;
1295 	setup_vga_switcheroo_runtime_pm(chip);
1296 }
1297 
1298 static void init_vga_switcheroo(struct azx *chip)
1299 {
1300 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1301 	struct pci_dev *p = get_bound_vga(chip->pci);
1302 	struct pci_dev *parent;
1303 	if (p) {
1304 		dev_info(chip->card->dev,
1305 			 "Handle vga_switcheroo audio client\n");
1306 		hda->use_vga_switcheroo = 1;
1307 
1308 		/* cleared in either gpu_bound op or codec probe, or when its
1309 		 * upstream port has _PR3 (i.e. dGPU).
1310 		 */
1311 		parent = pci_upstream_bridge(p);
1312 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1313 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1314 		pci_dev_put(p);
1315 	}
1316 }
1317 
1318 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1319 	.set_gpu_state = azx_vs_set_state,
1320 	.can_switch = azx_vs_can_switch,
1321 	.gpu_bound = azx_vs_gpu_bound,
1322 };
1323 
1324 static int register_vga_switcheroo(struct azx *chip)
1325 {
1326 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1327 	struct pci_dev *p;
1328 	int err;
1329 
1330 	if (!hda->use_vga_switcheroo)
1331 		return 0;
1332 
1333 	p = get_bound_vga(chip->pci);
1334 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1335 	pci_dev_put(p);
1336 
1337 	if (err < 0)
1338 		return err;
1339 	hda->vga_switcheroo_registered = 1;
1340 
1341 	return 0;
1342 }
1343 #else
1344 #define init_vga_switcheroo(chip)		/* NOP */
1345 #define register_vga_switcheroo(chip)		0
1346 #define check_hdmi_disabled(pci)	false
1347 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1348 #endif /* SUPPORT_VGA_SWITCHER */
1349 
1350 /*
1351  * destructor
1352  */
1353 static void azx_free(struct azx *chip)
1354 {
1355 	struct pci_dev *pci = chip->pci;
1356 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1357 	struct hdac_bus *bus = azx_bus(chip);
1358 
1359 	if (hda->freed)
1360 		return;
1361 
1362 	if (azx_has_pm_runtime(chip) && chip->running) {
1363 		pm_runtime_get_noresume(&pci->dev);
1364 		pm_runtime_forbid(&pci->dev);
1365 		pm_runtime_dont_use_autosuspend(&pci->dev);
1366 	}
1367 
1368 	chip->running = 0;
1369 
1370 	azx_del_card_list(chip);
1371 
1372 	hda->init_failed = 1; /* to be sure */
1373 	complete_all(&hda->probe_wait);
1374 
1375 	if (use_vga_switcheroo(hda)) {
1376 		if (chip->disabled && hda->probe_continued)
1377 			snd_hda_unlock_devices(&chip->bus);
1378 		if (hda->vga_switcheroo_registered)
1379 			vga_switcheroo_unregister_client(chip->pci);
1380 	}
1381 
1382 	if (bus->chip_init) {
1383 		azx_clear_irq_pending(chip);
1384 		azx_stop_all_streams(chip);
1385 		azx_stop_chip(chip);
1386 	}
1387 
1388 	if (bus->irq >= 0)
1389 		free_irq(bus->irq, (void*)chip);
1390 
1391 	azx_free_stream_pages(chip);
1392 	azx_free_streams(chip);
1393 	snd_hdac_bus_exit(bus);
1394 
1395 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1396 	release_firmware(chip->fw);
1397 #endif
1398 	display_power(chip, false);
1399 
1400 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1401 		snd_hdac_i915_exit(bus);
1402 
1403 	hda->freed = 1;
1404 }
1405 
1406 static int azx_dev_disconnect(struct snd_device *device)
1407 {
1408 	struct azx *chip = device->device_data;
1409 	struct hdac_bus *bus = azx_bus(chip);
1410 
1411 	chip->bus.shutdown = 1;
1412 	cancel_work_sync(&bus->unsol_work);
1413 
1414 	return 0;
1415 }
1416 
1417 static int azx_dev_free(struct snd_device *device)
1418 {
1419 	azx_free(device->device_data);
1420 	return 0;
1421 }
1422 
1423 #ifdef SUPPORT_VGA_SWITCHEROO
1424 #ifdef CONFIG_ACPI
1425 /* ATPX is in the integrated GPU's namespace */
1426 static bool atpx_present(void)
1427 {
1428 	struct pci_dev *pdev = NULL;
1429 	acpi_handle dhandle, atpx_handle;
1430 	acpi_status status;
1431 
1432 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1433 		dhandle = ACPI_HANDLE(&pdev->dev);
1434 		if (dhandle) {
1435 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1436 			if (ACPI_SUCCESS(status)) {
1437 				pci_dev_put(pdev);
1438 				return true;
1439 			}
1440 		}
1441 	}
1442 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1443 		dhandle = ACPI_HANDLE(&pdev->dev);
1444 		if (dhandle) {
1445 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1446 			if (ACPI_SUCCESS(status)) {
1447 				pci_dev_put(pdev);
1448 				return true;
1449 			}
1450 		}
1451 	}
1452 	return false;
1453 }
1454 #else
1455 static bool atpx_present(void)
1456 {
1457 	return false;
1458 }
1459 #endif
1460 
1461 /*
1462  * Check of disabled HDMI controller by vga_switcheroo
1463  */
1464 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1465 {
1466 	struct pci_dev *p;
1467 
1468 	/* check only discrete GPU */
1469 	switch (pci->vendor) {
1470 	case PCI_VENDOR_ID_ATI:
1471 	case PCI_VENDOR_ID_AMD:
1472 		if (pci->devfn == 1) {
1473 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1474 							pci->bus->number, 0);
1475 			if (p) {
1476 				/* ATPX is in the integrated GPU's ACPI namespace
1477 				 * rather than the dGPU's namespace. However,
1478 				 * the dGPU is the one who is involved in
1479 				 * vgaswitcheroo.
1480 				 */
1481 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1482 				    (atpx_present() || apple_gmux_detect(NULL, NULL)))
1483 					return p;
1484 				pci_dev_put(p);
1485 			}
1486 		}
1487 		break;
1488 	case PCI_VENDOR_ID_NVIDIA:
1489 		if (pci->devfn == 1) {
1490 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1491 							pci->bus->number, 0);
1492 			if (p) {
1493 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1494 					return p;
1495 				pci_dev_put(p);
1496 			}
1497 		}
1498 		break;
1499 	}
1500 	return NULL;
1501 }
1502 
1503 static bool check_hdmi_disabled(struct pci_dev *pci)
1504 {
1505 	bool vga_inactive = false;
1506 	struct pci_dev *p = get_bound_vga(pci);
1507 
1508 	if (p) {
1509 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1510 			vga_inactive = true;
1511 		pci_dev_put(p);
1512 	}
1513 	return vga_inactive;
1514 }
1515 #endif /* SUPPORT_VGA_SWITCHEROO */
1516 
1517 /*
1518  * allow/deny-listing for position_fix
1519  */
1520 static const struct snd_pci_quirk position_fix_list[] = {
1521 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1522 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1523 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1524 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1525 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1526 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1527 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1528 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1529 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1530 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1531 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1532 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1533 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1534 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1535 	{}
1536 };
1537 
1538 static int check_position_fix(struct azx *chip, int fix)
1539 {
1540 	const struct snd_pci_quirk *q;
1541 
1542 	switch (fix) {
1543 	case POS_FIX_AUTO:
1544 	case POS_FIX_LPIB:
1545 	case POS_FIX_POSBUF:
1546 	case POS_FIX_VIACOMBO:
1547 	case POS_FIX_COMBO:
1548 	case POS_FIX_SKL:
1549 	case POS_FIX_FIFO:
1550 		return fix;
1551 	}
1552 
1553 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1554 	if (q) {
1555 		dev_info(chip->card->dev,
1556 			 "position_fix set to %d for device %04x:%04x\n",
1557 			 q->value, q->subvendor, q->subdevice);
1558 		return q->value;
1559 	}
1560 
1561 	/* Check VIA/ATI HD Audio Controller exist */
1562 	if (chip->driver_type == AZX_DRIVER_VIA) {
1563 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1564 		return POS_FIX_VIACOMBO;
1565 	}
1566 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1567 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1568 		return POS_FIX_FIFO;
1569 	}
1570 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1571 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1572 		return POS_FIX_LPIB;
1573 	}
1574 	if (chip->driver_type == AZX_DRIVER_SKL) {
1575 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1576 		return POS_FIX_SKL;
1577 	}
1578 	return POS_FIX_AUTO;
1579 }
1580 
1581 static void assign_position_fix(struct azx *chip, int fix)
1582 {
1583 	static const azx_get_pos_callback_t callbacks[] = {
1584 		[POS_FIX_AUTO] = NULL,
1585 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1586 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1587 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1588 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1589 		[POS_FIX_SKL] = azx_get_pos_posbuf,
1590 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1591 	};
1592 
1593 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1594 
1595 	/* combo mode uses LPIB only for playback */
1596 	if (fix == POS_FIX_COMBO)
1597 		chip->get_position[1] = NULL;
1598 
1599 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1600 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1601 		chip->get_delay[0] = chip->get_delay[1] =
1602 			azx_get_delay_from_lpib;
1603 	}
1604 
1605 	if (fix == POS_FIX_FIFO)
1606 		chip->get_delay[0] = chip->get_delay[1] =
1607 			azx_get_delay_from_fifo;
1608 }
1609 
1610 /*
1611  * deny-lists for probe_mask
1612  */
1613 static const struct snd_pci_quirk probe_mask_list[] = {
1614 	/* Thinkpad often breaks the controller communication when accessing
1615 	 * to the non-working (or non-existing) modem codec slot.
1616 	 */
1617 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1618 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1619 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1620 	/* broken BIOS */
1621 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1622 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1623 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1624 	/* forced codec slots */
1625 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1626 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1627 	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1628 	/* WinFast VP200 H (Teradici) user reported broken communication */
1629 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1630 	{}
1631 };
1632 
1633 #define AZX_FORCE_CODEC_MASK	0x100
1634 
1635 static void check_probe_mask(struct azx *chip, int dev)
1636 {
1637 	const struct snd_pci_quirk *q;
1638 
1639 	chip->codec_probe_mask = probe_mask[dev];
1640 	if (chip->codec_probe_mask == -1) {
1641 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1642 		if (q) {
1643 			dev_info(chip->card->dev,
1644 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1645 				 q->value, q->subvendor, q->subdevice);
1646 			chip->codec_probe_mask = q->value;
1647 		}
1648 	}
1649 
1650 	/* check forced option */
1651 	if (chip->codec_probe_mask != -1 &&
1652 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1653 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1654 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1655 			 (int)azx_bus(chip)->codec_mask);
1656 	}
1657 }
1658 
1659 /*
1660  * allow/deny-list for enable_msi
1661  */
1662 static const struct snd_pci_quirk msi_deny_list[] = {
1663 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1664 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1665 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1666 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1667 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1668 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1669 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1670 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1671 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1672 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1673 	{}
1674 };
1675 
1676 static void check_msi(struct azx *chip)
1677 {
1678 	const struct snd_pci_quirk *q;
1679 
1680 	if (enable_msi >= 0) {
1681 		chip->msi = !!enable_msi;
1682 		return;
1683 	}
1684 	chip->msi = 1;	/* enable MSI as default */
1685 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1686 	if (q) {
1687 		dev_info(chip->card->dev,
1688 			 "msi for device %04x:%04x set to %d\n",
1689 			 q->subvendor, q->subdevice, q->value);
1690 		chip->msi = q->value;
1691 		return;
1692 	}
1693 
1694 	/* NVidia chipsets seem to cause troubles with MSI */
1695 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1696 		dev_info(chip->card->dev, "Disabling MSI\n");
1697 		chip->msi = 0;
1698 	}
1699 }
1700 
1701 /* check the snoop mode availability */
1702 static void azx_check_snoop_available(struct azx *chip)
1703 {
1704 	int snoop = hda_snoop;
1705 
1706 	if (snoop >= 0) {
1707 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1708 			 snoop ? "snoop" : "non-snoop");
1709 		chip->snoop = snoop;
1710 		chip->uc_buffer = !snoop;
1711 		return;
1712 	}
1713 
1714 	snoop = true;
1715 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1716 	    chip->driver_type == AZX_DRIVER_VIA) {
1717 		/* force to non-snoop mode for a new VIA controller
1718 		 * when BIOS is set
1719 		 */
1720 		u8 val;
1721 		pci_read_config_byte(chip->pci, 0x42, &val);
1722 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1723 				      chip->pci->revision == 0x20))
1724 			snoop = false;
1725 	}
1726 
1727 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1728 		snoop = false;
1729 
1730 	chip->snoop = snoop;
1731 	if (!snoop) {
1732 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1733 		/* C-Media requires non-cached pages only for CORB/RIRB */
1734 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1735 			chip->uc_buffer = true;
1736 	}
1737 }
1738 
1739 static void azx_probe_work(struct work_struct *work)
1740 {
1741 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1742 	azx_probe_continue(&hda->chip);
1743 }
1744 
1745 static int default_bdl_pos_adj(struct azx *chip)
1746 {
1747 	/* some exceptions: Atoms seem problematic with value 1 */
1748 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1749 		switch (chip->pci->device) {
1750 		case 0x0f04: /* Baytrail */
1751 		case 0x2284: /* Braswell */
1752 			return 32;
1753 		}
1754 	}
1755 
1756 	switch (chip->driver_type) {
1757 	/*
1758 	 * increase the bdl size for Glenfly Gpus for hardware
1759 	 * limitation on hdac interrupt interval
1760 	 */
1761 	case AZX_DRIVER_GFHDMI:
1762 		return 128;
1763 	case AZX_DRIVER_ICH:
1764 	case AZX_DRIVER_PCH:
1765 		return 1;
1766 	default:
1767 		return 32;
1768 	}
1769 }
1770 
1771 /*
1772  * constructor
1773  */
1774 static const struct hda_controller_ops pci_hda_ops;
1775 
1776 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1777 		      int dev, unsigned int driver_caps,
1778 		      struct azx **rchip)
1779 {
1780 	static const struct snd_device_ops ops = {
1781 		.dev_disconnect = azx_dev_disconnect,
1782 		.dev_free = azx_dev_free,
1783 	};
1784 	struct hda_intel *hda;
1785 	struct azx *chip;
1786 	int err;
1787 
1788 	*rchip = NULL;
1789 
1790 	err = pcim_enable_device(pci);
1791 	if (err < 0)
1792 		return err;
1793 
1794 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1795 	if (!hda)
1796 		return -ENOMEM;
1797 
1798 	chip = &hda->chip;
1799 	mutex_init(&chip->open_mutex);
1800 	chip->card = card;
1801 	chip->pci = pci;
1802 	chip->ops = &pci_hda_ops;
1803 	chip->driver_caps = driver_caps;
1804 	chip->driver_type = driver_caps & 0xff;
1805 	check_msi(chip);
1806 	chip->dev_index = dev;
1807 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1808 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1809 	INIT_LIST_HEAD(&chip->pcm_list);
1810 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1811 	INIT_LIST_HEAD(&hda->list);
1812 	init_vga_switcheroo(chip);
1813 	init_completion(&hda->probe_wait);
1814 
1815 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1816 
1817 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1818 		chip->fallback_to_single_cmd = 1;
1819 	else /* explicitly set to single_cmd or not */
1820 		chip->single_cmd = single_cmd;
1821 
1822 	azx_check_snoop_available(chip);
1823 
1824 	if (bdl_pos_adj[dev] < 0)
1825 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1826 	else
1827 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1828 
1829 	err = azx_bus_init(chip, model[dev]);
1830 	if (err < 0)
1831 		return err;
1832 
1833 	/* use the non-cached pages in non-snoop mode */
1834 	if (!azx_snoop(chip))
1835 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC_SG;
1836 
1837 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1838 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1839 		chip->bus.core.needs_damn_long_delay = 1;
1840 	}
1841 
1842 	check_probe_mask(chip, dev);
1843 
1844 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1845 	if (err < 0) {
1846 		dev_err(card->dev, "Error creating device [card]!\n");
1847 		azx_free(chip);
1848 		return err;
1849 	}
1850 
1851 	/* continue probing in work context as may trigger request module */
1852 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1853 
1854 	*rchip = chip;
1855 
1856 	return 0;
1857 }
1858 
1859 static int azx_first_init(struct azx *chip)
1860 {
1861 	int dev = chip->dev_index;
1862 	struct pci_dev *pci = chip->pci;
1863 	struct snd_card *card = chip->card;
1864 	struct hdac_bus *bus = azx_bus(chip);
1865 	int err;
1866 	unsigned short gcap;
1867 	unsigned int dma_bits = 64;
1868 
1869 #if BITS_PER_LONG != 64
1870 	/* Fix up base address on ULI M5461 */
1871 	if (chip->driver_type == AZX_DRIVER_ULI) {
1872 		u16 tmp3;
1873 		pci_read_config_word(pci, 0x40, &tmp3);
1874 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1875 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1876 	}
1877 #endif
1878 	/*
1879 	 * Fix response write request not synced to memory when handle
1880 	 * hdac interrupt on Glenfly Gpus
1881 	 */
1882 	if (chip->driver_type == AZX_DRIVER_GFHDMI)
1883 		bus->polling_mode = 1;
1884 
1885 	if (chip->driver_type == AZX_DRIVER_LOONGSON) {
1886 		bus->polling_mode = 1;
1887 		bus->not_use_interrupts = 1;
1888 		bus->access_sdnctl_in_dword = 1;
1889 	}
1890 
1891 	err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");
1892 	if (err < 0)
1893 		return err;
1894 
1895 	bus->addr = pci_resource_start(pci, 0);
1896 	bus->remap_addr = pcim_iomap_table(pci)[0];
1897 
1898 	if (chip->driver_type == AZX_DRIVER_SKL)
1899 		snd_hdac_bus_parse_capabilities(bus);
1900 
1901 	/*
1902 	 * Some Intel CPUs has always running timer (ART) feature and
1903 	 * controller may have Global time sync reporting capability, so
1904 	 * check both of these before declaring synchronized time reporting
1905 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1906 	 */
1907 	chip->gts_present = false;
1908 
1909 #ifdef CONFIG_X86
1910 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1911 		chip->gts_present = true;
1912 #endif
1913 
1914 	if (chip->msi) {
1915 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1916 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1917 			pci->no_64bit_msi = true;
1918 		}
1919 		if (pci_enable_msi(pci) < 0)
1920 			chip->msi = 0;
1921 	}
1922 
1923 	pci_set_master(pci);
1924 
1925 	gcap = azx_readw(chip, GCAP);
1926 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1927 
1928 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1929 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1930 		dma_bits = 40;
1931 
1932 	/* disable SB600 64bit support for safety */
1933 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1934 		struct pci_dev *p_smbus;
1935 		dma_bits = 40;
1936 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1937 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1938 					 NULL);
1939 		if (p_smbus) {
1940 			if (p_smbus->revision < 0x30)
1941 				gcap &= ~AZX_GCAP_64OK;
1942 			pci_dev_put(p_smbus);
1943 		}
1944 	}
1945 
1946 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1947 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1948 		dma_bits = 40;
1949 
1950 	/* disable 64bit DMA address on some devices */
1951 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1952 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1953 		gcap &= ~AZX_GCAP_64OK;
1954 	}
1955 
1956 	/* disable buffer size rounding to 128-byte multiples if supported */
1957 	if (align_buffer_size >= 0)
1958 		chip->align_buffer_size = !!align_buffer_size;
1959 	else {
1960 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1961 			chip->align_buffer_size = 0;
1962 		else
1963 			chip->align_buffer_size = 1;
1964 	}
1965 
1966 	/* allow 64bit DMA address if supported by H/W */
1967 	if (!(gcap & AZX_GCAP_64OK))
1968 		dma_bits = 32;
1969 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1970 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1971 	dma_set_max_seg_size(&pci->dev, UINT_MAX);
1972 
1973 	/* read number of streams from GCAP register instead of using
1974 	 * hardcoded value
1975 	 */
1976 	chip->capture_streams = (gcap >> 8) & 0x0f;
1977 	chip->playback_streams = (gcap >> 12) & 0x0f;
1978 	if (!chip->playback_streams && !chip->capture_streams) {
1979 		/* gcap didn't give any info, switching to old method */
1980 
1981 		switch (chip->driver_type) {
1982 		case AZX_DRIVER_ULI:
1983 			chip->playback_streams = ULI_NUM_PLAYBACK;
1984 			chip->capture_streams = ULI_NUM_CAPTURE;
1985 			break;
1986 		case AZX_DRIVER_ATIHDMI:
1987 		case AZX_DRIVER_ATIHDMI_NS:
1988 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1989 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1990 			break;
1991 		case AZX_DRIVER_GFHDMI:
1992 		case AZX_DRIVER_GENERIC:
1993 		default:
1994 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1995 			chip->capture_streams = ICH6_NUM_CAPTURE;
1996 			break;
1997 		}
1998 	}
1999 	chip->capture_index_offset = 0;
2000 	chip->playback_index_offset = chip->capture_streams;
2001 	chip->num_streams = chip->playback_streams + chip->capture_streams;
2002 
2003 	/* sanity check for the SDxCTL.STRM field overflow */
2004 	if (chip->num_streams > 15 &&
2005 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
2006 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
2007 			 "forcing separate stream tags", chip->num_streams);
2008 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
2009 	}
2010 
2011 	/* initialize streams */
2012 	err = azx_init_streams(chip);
2013 	if (err < 0)
2014 		return err;
2015 
2016 	err = azx_alloc_stream_pages(chip);
2017 	if (err < 0)
2018 		return err;
2019 
2020 	/* initialize chip */
2021 	azx_init_pci(chip);
2022 
2023 	snd_hdac_i915_set_bclk(bus);
2024 
2025 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2026 
2027 	/* codec detection */
2028 	if (!azx_bus(chip)->codec_mask) {
2029 		dev_err(card->dev, "no codecs found!\n");
2030 		/* keep running the rest for the runtime PM */
2031 	}
2032 
2033 	if (azx_acquire_irq(chip, 0) < 0)
2034 		return -EBUSY;
2035 
2036 	strcpy(card->driver, "HDA-Intel");
2037 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2038 		sizeof(card->shortname));
2039 	snprintf(card->longname, sizeof(card->longname),
2040 		 "%s at 0x%lx irq %i",
2041 		 card->shortname, bus->addr, bus->irq);
2042 
2043 	return 0;
2044 }
2045 
2046 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2047 /* callback from request_firmware_nowait() */
2048 static void azx_firmware_cb(const struct firmware *fw, void *context)
2049 {
2050 	struct snd_card *card = context;
2051 	struct azx *chip = card->private_data;
2052 
2053 	if (fw)
2054 		chip->fw = fw;
2055 	else
2056 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2057 	if (!chip->disabled) {
2058 		/* continue probing */
2059 		azx_probe_continue(chip);
2060 	}
2061 }
2062 #endif
2063 
2064 static int disable_msi_reset_irq(struct azx *chip)
2065 {
2066 	struct hdac_bus *bus = azx_bus(chip);
2067 	int err;
2068 
2069 	free_irq(bus->irq, chip);
2070 	bus->irq = -1;
2071 	chip->card->sync_irq = -1;
2072 	pci_disable_msi(chip->pci);
2073 	chip->msi = 0;
2074 	err = azx_acquire_irq(chip, 1);
2075 	if (err < 0)
2076 		return err;
2077 
2078 	return 0;
2079 }
2080 
2081 /* Denylist for skipping the whole probe:
2082  * some HD-audio PCI entries are exposed without any codecs, and such devices
2083  * should be ignored from the beginning.
2084  */
2085 static const struct pci_device_id driver_denylist[] = {
2086 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2087 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2088 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2089 	{}
2090 };
2091 
2092 static const struct hda_controller_ops pci_hda_ops = {
2093 	.disable_msi_reset_irq = disable_msi_reset_irq,
2094 	.position_check = azx_position_check,
2095 };
2096 
2097 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2098 
2099 static int azx_probe(struct pci_dev *pci,
2100 		     const struct pci_device_id *pci_id)
2101 {
2102 	struct snd_card *card;
2103 	struct hda_intel *hda;
2104 	struct azx *chip;
2105 	bool schedule_probe;
2106 	int dev;
2107 	int err;
2108 
2109 	if (pci_match_id(driver_denylist, pci)) {
2110 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2111 		return -ENODEV;
2112 	}
2113 
2114 	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2115 	if (dev >= SNDRV_CARDS)
2116 		return -ENODEV;
2117 	if (!enable[dev]) {
2118 		set_bit(dev, probed_devs);
2119 		return -ENOENT;
2120 	}
2121 
2122 	/*
2123 	 * stop probe if another Intel's DSP driver should be activated
2124 	 */
2125 	if (dmic_detect) {
2126 		err = snd_intel_dsp_driver_probe(pci);
2127 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2128 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2129 			return -ENODEV;
2130 		}
2131 	} else {
2132 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2133 	}
2134 
2135 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2136 			   0, &card);
2137 	if (err < 0) {
2138 		dev_err(&pci->dev, "Error creating card!\n");
2139 		return err;
2140 	}
2141 
2142 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2143 	if (err < 0)
2144 		goto out_free;
2145 	card->private_data = chip;
2146 	hda = container_of(chip, struct hda_intel, chip);
2147 
2148 	pci_set_drvdata(pci, card);
2149 
2150 	err = register_vga_switcheroo(chip);
2151 	if (err < 0) {
2152 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2153 		goto out_free;
2154 	}
2155 
2156 	if (check_hdmi_disabled(pci)) {
2157 		dev_info(card->dev, "VGA controller is disabled\n");
2158 		dev_info(card->dev, "Delaying initialization\n");
2159 		chip->disabled = true;
2160 	}
2161 
2162 	schedule_probe = !chip->disabled;
2163 
2164 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2165 	if (patch[dev] && *patch[dev]) {
2166 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2167 			 patch[dev]);
2168 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2169 					      &pci->dev, GFP_KERNEL, card,
2170 					      azx_firmware_cb);
2171 		if (err < 0)
2172 			goto out_free;
2173 		schedule_probe = false; /* continued in azx_firmware_cb() */
2174 	}
2175 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2176 
2177 #ifndef CONFIG_SND_HDA_I915
2178 	if (CONTROLLER_IN_GPU(pci))
2179 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2180 #endif
2181 
2182 	if (schedule_probe)
2183 		schedule_delayed_work(&hda->probe_work, 0);
2184 
2185 	set_bit(dev, probed_devs);
2186 	if (chip->disabled)
2187 		complete_all(&hda->probe_wait);
2188 	return 0;
2189 
2190 out_free:
2191 	snd_card_free(card);
2192 	return err;
2193 }
2194 
2195 #ifdef CONFIG_PM
2196 /* On some boards setting power_save to a non 0 value leads to clicking /
2197  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2198  * figure out how to avoid these sounds, but that is not always feasible.
2199  * So we keep a list of devices where we disable powersaving as its known
2200  * to causes problems on these devices.
2201  */
2202 static const struct snd_pci_quirk power_save_denylist[] = {
2203 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2204 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2205 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2206 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2207 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2208 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2209 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2210 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2211 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2212 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2213 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2214 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2215 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2216 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2217 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2218 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2219 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2220 	/* https://bugs.launchpad.net/bugs/1821663 */
2221 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2222 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2223 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2224 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2225 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2226 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2227 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2228 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2229 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2230 	/* https://bugs.launchpad.net/bugs/1821663 */
2231 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2232 	{}
2233 };
2234 #endif /* CONFIG_PM */
2235 
2236 static void set_default_power_save(struct azx *chip)
2237 {
2238 	int val = power_save;
2239 
2240 #ifdef CONFIG_PM
2241 	if (pm_blacklist) {
2242 		const struct snd_pci_quirk *q;
2243 
2244 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2245 		if (q && val) {
2246 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2247 				 q->subvendor, q->subdevice);
2248 			val = 0;
2249 		}
2250 	}
2251 #endif /* CONFIG_PM */
2252 	snd_hda_set_power_save(&chip->bus, val * 1000);
2253 }
2254 
2255 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2256 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2257 	[AZX_DRIVER_NVIDIA] = 8,
2258 	[AZX_DRIVER_TERA] = 1,
2259 };
2260 
2261 static int azx_probe_continue(struct azx *chip)
2262 {
2263 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2264 	struct hdac_bus *bus = azx_bus(chip);
2265 	struct pci_dev *pci = chip->pci;
2266 	int dev = chip->dev_index;
2267 	int err;
2268 
2269 	if (chip->disabled || hda->init_failed)
2270 		return -EIO;
2271 	if (hda->probe_retry)
2272 		goto probe_retry;
2273 
2274 	to_hda_bus(bus)->bus_probing = 1;
2275 	hda->probe_continued = 1;
2276 
2277 	/* bind with i915 if needed */
2278 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2279 		err = snd_hdac_i915_init(bus);
2280 		if (err < 0) {
2281 			/* if the controller is bound only with HDMI/DP
2282 			 * (for HSW and BDW), we need to abort the probe;
2283 			 * for other chips, still continue probing as other
2284 			 * codecs can be on the same link.
2285 			 */
2286 			if (CONTROLLER_IN_GPU(pci)) {
2287 				dev_err(chip->card->dev,
2288 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2289 				goto out_free;
2290 			} else {
2291 				/* don't bother any longer */
2292 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2293 			}
2294 		}
2295 
2296 		/* HSW/BDW controllers need this power */
2297 		if (CONTROLLER_IN_GPU(pci))
2298 			hda->need_i915_power = true;
2299 	}
2300 
2301 	/* Request display power well for the HDA controller or codec. For
2302 	 * Haswell/Broadwell, both the display HDA controller and codec need
2303 	 * this power. For other platforms, like Baytrail/Braswell, only the
2304 	 * display codec needs the power and it can be released after probe.
2305 	 */
2306 	display_power(chip, true);
2307 
2308 	err = azx_first_init(chip);
2309 	if (err < 0)
2310 		goto out_free;
2311 
2312 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2313 	chip->beep_mode = beep_mode[dev];
2314 #endif
2315 
2316 	chip->ctl_dev_id = ctl_dev_id;
2317 
2318 	/* create codec instances */
2319 	if (bus->codec_mask) {
2320 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2321 		if (err < 0)
2322 			goto out_free;
2323 	}
2324 
2325 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2326 	if (chip->fw) {
2327 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2328 					 chip->fw->data);
2329 		if (err < 0)
2330 			goto out_free;
2331 #ifndef CONFIG_PM
2332 		release_firmware(chip->fw); /* no longer needed */
2333 		chip->fw = NULL;
2334 #endif
2335 	}
2336 #endif
2337 
2338  probe_retry:
2339 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2340 		err = azx_codec_configure(chip);
2341 		if (err) {
2342 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2343 			    ++hda->probe_retry < 60) {
2344 				schedule_delayed_work(&hda->probe_work,
2345 						      msecs_to_jiffies(1000));
2346 				return 0; /* keep things up */
2347 			}
2348 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2349 			goto out_free;
2350 		}
2351 	}
2352 
2353 	err = snd_card_register(chip->card);
2354 	if (err < 0)
2355 		goto out_free;
2356 
2357 	setup_vga_switcheroo_runtime_pm(chip);
2358 
2359 	chip->running = 1;
2360 	azx_add_card_list(chip);
2361 
2362 	set_default_power_save(chip);
2363 
2364 	if (azx_has_pm_runtime(chip)) {
2365 		pm_runtime_use_autosuspend(&pci->dev);
2366 		pm_runtime_allow(&pci->dev);
2367 		pm_runtime_put_autosuspend(&pci->dev);
2368 	}
2369 
2370 out_free:
2371 	if (err < 0) {
2372 		pci_set_drvdata(pci, NULL);
2373 		snd_card_free(chip->card);
2374 		return err;
2375 	}
2376 
2377 	if (!hda->need_i915_power)
2378 		display_power(chip, false);
2379 	complete_all(&hda->probe_wait);
2380 	to_hda_bus(bus)->bus_probing = 0;
2381 	hda->probe_retry = 0;
2382 	return 0;
2383 }
2384 
2385 static void azx_remove(struct pci_dev *pci)
2386 {
2387 	struct snd_card *card = pci_get_drvdata(pci);
2388 	struct azx *chip;
2389 	struct hda_intel *hda;
2390 
2391 	if (card) {
2392 		/* cancel the pending probing work */
2393 		chip = card->private_data;
2394 		hda = container_of(chip, struct hda_intel, chip);
2395 		/* FIXME: below is an ugly workaround.
2396 		 * Both device_release_driver() and driver_probe_device()
2397 		 * take *both* the device's and its parent's lock before
2398 		 * calling the remove() and probe() callbacks.  The codec
2399 		 * probe takes the locks of both the codec itself and its
2400 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2401 		 * the PCI controller is unbound, it takes its lock, too
2402 		 * ==> ouch, a deadlock!
2403 		 * As a workaround, we unlock temporarily here the controller
2404 		 * device during cancel_work_sync() call.
2405 		 */
2406 		device_unlock(&pci->dev);
2407 		cancel_delayed_work_sync(&hda->probe_work);
2408 		device_lock(&pci->dev);
2409 
2410 		clear_bit(chip->dev_index, probed_devs);
2411 		pci_set_drvdata(pci, NULL);
2412 		snd_card_free(card);
2413 	}
2414 }
2415 
2416 static void azx_shutdown(struct pci_dev *pci)
2417 {
2418 	struct snd_card *card = pci_get_drvdata(pci);
2419 	struct azx *chip;
2420 
2421 	if (!card)
2422 		return;
2423 	chip = card->private_data;
2424 	if (chip && chip->running)
2425 		__azx_shutdown_chip(chip, true);
2426 }
2427 
2428 /* PCI IDs */
2429 static const struct pci_device_id azx_ids[] = {
2430 	/* CPT */
2431 	{ PCI_DEVICE(0x8086, 0x1c20),
2432 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2433 	/* PBG */
2434 	{ PCI_DEVICE(0x8086, 0x1d20),
2435 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2436 	/* Panther Point */
2437 	{ PCI_DEVICE(0x8086, 0x1e20),
2438 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2439 	/* Lynx Point */
2440 	{ PCI_DEVICE(0x8086, 0x8c20),
2441 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2442 	/* 9 Series */
2443 	{ PCI_DEVICE(0x8086, 0x8ca0),
2444 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2445 	/* Wellsburg */
2446 	{ PCI_DEVICE(0x8086, 0x8d20),
2447 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2448 	{ PCI_DEVICE(0x8086, 0x8d21),
2449 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2450 	/* Lewisburg */
2451 	{ PCI_DEVICE(0x8086, 0xa1f0),
2452 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2453 	{ PCI_DEVICE(0x8086, 0xa270),
2454 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2455 	/* Lynx Point-LP */
2456 	{ PCI_DEVICE(0x8086, 0x9c20),
2457 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2458 	/* Lynx Point-LP */
2459 	{ PCI_DEVICE(0x8086, 0x9c21),
2460 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2461 	/* Wildcat Point-LP */
2462 	{ PCI_DEVICE(0x8086, 0x9ca0),
2463 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2464 	/* Sunrise Point */
2465 	{ PCI_DEVICE(0x8086, 0xa170),
2466 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2467 	/* Sunrise Point-LP */
2468 	{ PCI_DEVICE(0x8086, 0x9d70),
2469 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2470 	/* Kabylake */
2471 	{ PCI_DEVICE(0x8086, 0xa171),
2472 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2473 	/* Kabylake-LP */
2474 	{ PCI_DEVICE(0x8086, 0x9d71),
2475 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2476 	/* Kabylake-H */
2477 	{ PCI_DEVICE(0x8086, 0xa2f0),
2478 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2479 	/* Coffelake */
2480 	{ PCI_DEVICE(0x8086, 0xa348),
2481 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2482 	/* Cannonlake */
2483 	{ PCI_DEVICE(0x8086, 0x9dc8),
2484 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2485 	/* CometLake-LP */
2486 	{ PCI_DEVICE(0x8086, 0x02C8),
2487 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2488 	/* CometLake-H */
2489 	{ PCI_DEVICE(0x8086, 0x06C8),
2490 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2491 	{ PCI_DEVICE(0x8086, 0xf1c8),
2492 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2493 	/* CometLake-S */
2494 	{ PCI_DEVICE(0x8086, 0xa3f0),
2495 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2496 	/* CometLake-R */
2497 	{ PCI_DEVICE(0x8086, 0xf0c8),
2498 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2499 	/* Icelake */
2500 	{ PCI_DEVICE(0x8086, 0x34c8),
2501 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2502 	/* Icelake-H */
2503 	{ PCI_DEVICE(0x8086, 0x3dc8),
2504 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2505 	/* Jasperlake */
2506 	{ PCI_DEVICE(0x8086, 0x38c8),
2507 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2508 	{ PCI_DEVICE(0x8086, 0x4dc8),
2509 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2510 	/* Tigerlake */
2511 	{ PCI_DEVICE(0x8086, 0xa0c8),
2512 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2513 	/* Tigerlake-H */
2514 	{ PCI_DEVICE(0x8086, 0x43c8),
2515 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2516 	/* DG1 */
2517 	{ PCI_DEVICE(0x8086, 0x490d),
2518 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2519 	/* DG2 */
2520 	{ PCI_DEVICE(0x8086, 0x4f90),
2521 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2522 	{ PCI_DEVICE(0x8086, 0x4f91),
2523 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2524 	{ PCI_DEVICE(0x8086, 0x4f92),
2525 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2526 	/* Alderlake-S */
2527 	{ PCI_DEVICE(0x8086, 0x7ad0),
2528 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2529 	/* Alderlake-P */
2530 	{ PCI_DEVICE(0x8086, 0x51c8),
2531 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2532 	{ PCI_DEVICE(0x8086, 0x51c9),
2533 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2534 	{ PCI_DEVICE(0x8086, 0x51cd),
2535 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2536 	/* Alderlake-M */
2537 	{ PCI_DEVICE(0x8086, 0x51cc),
2538 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2539 	/* Alderlake-N */
2540 	{ PCI_DEVICE(0x8086, 0x54c8),
2541 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2542 	/* Elkhart Lake */
2543 	{ PCI_DEVICE(0x8086, 0x4b55),
2544 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2545 	{ PCI_DEVICE(0x8086, 0x4b58),
2546 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2547 	/* Raptor Lake */
2548 	{ PCI_DEVICE(0x8086, 0x7a50),
2549 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2550 	{ PCI_DEVICE(0x8086, 0x51ca),
2551 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2552 	{ PCI_DEVICE(0x8086, 0x51cb),
2553 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2554 	{ PCI_DEVICE(0x8086, 0x51ce),
2555 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2556 	{ PCI_DEVICE(0x8086, 0x51cf),
2557 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2558 	/* Meteorlake-P */
2559 	{ PCI_DEVICE(0x8086, 0x7e28),
2560 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2561 	/* Lunarlake-P */
2562 	{ PCI_DEVICE(0x8086, 0xa828),
2563 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2564 	/* Broxton-P(Apollolake) */
2565 	{ PCI_DEVICE(0x8086, 0x5a98),
2566 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2567 	/* Broxton-T */
2568 	{ PCI_DEVICE(0x8086, 0x1a98),
2569 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2570 	/* Gemini-Lake */
2571 	{ PCI_DEVICE(0x8086, 0x3198),
2572 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2573 	/* Haswell */
2574 	{ PCI_DEVICE(0x8086, 0x0a0c),
2575 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2576 	{ PCI_DEVICE(0x8086, 0x0c0c),
2577 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2578 	{ PCI_DEVICE(0x8086, 0x0d0c),
2579 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2580 	/* Broadwell */
2581 	{ PCI_DEVICE(0x8086, 0x160c),
2582 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2583 	/* 5 Series/3400 */
2584 	{ PCI_DEVICE(0x8086, 0x3b56),
2585 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2586 	{ PCI_DEVICE(0x8086, 0x3b57),
2587 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2588 	/* Poulsbo */
2589 	{ PCI_DEVICE(0x8086, 0x811b),
2590 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
2591 	  AZX_DCAPS_POSFIX_LPIB },
2592 	/* Oaktrail */
2593 	{ PCI_DEVICE(0x8086, 0x080a),
2594 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2595 	/* BayTrail */
2596 	{ PCI_DEVICE(0x8086, 0x0f04),
2597 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2598 	/* Braswell */
2599 	{ PCI_DEVICE(0x8086, 0x2284),
2600 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2601 	/* ICH6 */
2602 	{ PCI_DEVICE(0x8086, 0x2668),
2603 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2604 	/* ICH7 */
2605 	{ PCI_DEVICE(0x8086, 0x27d8),
2606 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2607 	/* ESB2 */
2608 	{ PCI_DEVICE(0x8086, 0x269a),
2609 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2610 	/* ICH8 */
2611 	{ PCI_DEVICE(0x8086, 0x284b),
2612 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2613 	/* ICH9 */
2614 	{ PCI_DEVICE(0x8086, 0x293e),
2615 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2616 	/* ICH9 */
2617 	{ PCI_DEVICE(0x8086, 0x293f),
2618 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2619 	/* ICH10 */
2620 	{ PCI_DEVICE(0x8086, 0x3a3e),
2621 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2622 	/* ICH10 */
2623 	{ PCI_DEVICE(0x8086, 0x3a6e),
2624 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2625 	/* Generic Intel */
2626 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2627 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2628 	  .class_mask = 0xffffff,
2629 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2630 	/* ATI SB 450/600/700/800/900 */
2631 	{ PCI_DEVICE(0x1002, 0x437b),
2632 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2633 	{ PCI_DEVICE(0x1002, 0x4383),
2634 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2635 	/* AMD Hudson */
2636 	{ PCI_DEVICE(0x1022, 0x780d),
2637 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2638 	/* AMD, X370 & co */
2639 	{ PCI_DEVICE(0x1022, 0x1457),
2640 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2641 	/* AMD, X570 & co */
2642 	{ PCI_DEVICE(0x1022, 0x1487),
2643 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2644 	/* AMD Stoney */
2645 	{ PCI_DEVICE(0x1022, 0x157a),
2646 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2647 			 AZX_DCAPS_PM_RUNTIME },
2648 	/* AMD Raven */
2649 	{ PCI_DEVICE(0x1022, 0x15e3),
2650 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2651 	/* ATI HDMI */
2652 	{ PCI_DEVICE(0x1002, 0x0002),
2653 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2654 	  AZX_DCAPS_PM_RUNTIME },
2655 	{ PCI_DEVICE(0x1002, 0x1308),
2656 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2657 	{ PCI_DEVICE(0x1002, 0x157a),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2659 	{ PCI_DEVICE(0x1002, 0x15b3),
2660 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2661 	{ PCI_DEVICE(0x1002, 0x793b),
2662 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2663 	{ PCI_DEVICE(0x1002, 0x7919),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2665 	{ PCI_DEVICE(0x1002, 0x960f),
2666 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2667 	{ PCI_DEVICE(0x1002, 0x970f),
2668 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2669 	{ PCI_DEVICE(0x1002, 0x9840),
2670 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2671 	{ PCI_DEVICE(0x1002, 0xaa00),
2672 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2673 	{ PCI_DEVICE(0x1002, 0xaa08),
2674 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2675 	{ PCI_DEVICE(0x1002, 0xaa10),
2676 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2677 	{ PCI_DEVICE(0x1002, 0xaa18),
2678 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2679 	{ PCI_DEVICE(0x1002, 0xaa20),
2680 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2681 	{ PCI_DEVICE(0x1002, 0xaa28),
2682 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2683 	{ PCI_DEVICE(0x1002, 0xaa30),
2684 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2685 	{ PCI_DEVICE(0x1002, 0xaa38),
2686 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2687 	{ PCI_DEVICE(0x1002, 0xaa40),
2688 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2689 	{ PCI_DEVICE(0x1002, 0xaa48),
2690 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2691 	{ PCI_DEVICE(0x1002, 0xaa50),
2692 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2693 	{ PCI_DEVICE(0x1002, 0xaa58),
2694 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2695 	{ PCI_DEVICE(0x1002, 0xaa60),
2696 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2697 	{ PCI_DEVICE(0x1002, 0xaa68),
2698 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2699 	{ PCI_DEVICE(0x1002, 0xaa80),
2700 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2701 	{ PCI_DEVICE(0x1002, 0xaa88),
2702 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2703 	{ PCI_DEVICE(0x1002, 0xaa90),
2704 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2705 	{ PCI_DEVICE(0x1002, 0xaa98),
2706 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2707 	{ PCI_DEVICE(0x1002, 0x9902),
2708 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2709 	{ PCI_DEVICE(0x1002, 0xaaa0),
2710 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2711 	{ PCI_DEVICE(0x1002, 0xaaa8),
2712 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2713 	{ PCI_DEVICE(0x1002, 0xaab0),
2714 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2715 	{ PCI_DEVICE(0x1002, 0xaac0),
2716 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2717 	  AZX_DCAPS_PM_RUNTIME },
2718 	{ PCI_DEVICE(0x1002, 0xaac8),
2719 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2720 	  AZX_DCAPS_PM_RUNTIME },
2721 	{ PCI_DEVICE(0x1002, 0xaad8),
2722 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2723 	  AZX_DCAPS_PM_RUNTIME },
2724 	{ PCI_DEVICE(0x1002, 0xaae0),
2725 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2726 	  AZX_DCAPS_PM_RUNTIME },
2727 	{ PCI_DEVICE(0x1002, 0xaae8),
2728 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2729 	  AZX_DCAPS_PM_RUNTIME },
2730 	{ PCI_DEVICE(0x1002, 0xaaf0),
2731 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2732 	  AZX_DCAPS_PM_RUNTIME },
2733 	{ PCI_DEVICE(0x1002, 0xaaf8),
2734 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2735 	  AZX_DCAPS_PM_RUNTIME },
2736 	{ PCI_DEVICE(0x1002, 0xab00),
2737 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2738 	  AZX_DCAPS_PM_RUNTIME },
2739 	{ PCI_DEVICE(0x1002, 0xab08),
2740 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2741 	  AZX_DCAPS_PM_RUNTIME },
2742 	{ PCI_DEVICE(0x1002, 0xab10),
2743 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2744 	  AZX_DCAPS_PM_RUNTIME },
2745 	{ PCI_DEVICE(0x1002, 0xab18),
2746 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2747 	  AZX_DCAPS_PM_RUNTIME },
2748 	{ PCI_DEVICE(0x1002, 0xab20),
2749 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2750 	  AZX_DCAPS_PM_RUNTIME },
2751 	{ PCI_DEVICE(0x1002, 0xab28),
2752 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2753 	  AZX_DCAPS_PM_RUNTIME },
2754 	{ PCI_DEVICE(0x1002, 0xab30),
2755 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2756 	  AZX_DCAPS_PM_RUNTIME },
2757 	{ PCI_DEVICE(0x1002, 0xab38),
2758 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2759 	  AZX_DCAPS_PM_RUNTIME },
2760 	/* GLENFLY */
2761 	{ PCI_DEVICE(0x6766, PCI_ANY_ID),
2762 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2763 	  .class_mask = 0xffffff,
2764 	  .driver_data = AZX_DRIVER_GFHDMI | AZX_DCAPS_POSFIX_LPIB |
2765 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2766 	/* VIA VT8251/VT8237A */
2767 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2768 	/* VIA GFX VT7122/VX900 */
2769 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2770 	/* VIA GFX VT6122/VX11 */
2771 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2772 	/* SIS966 */
2773 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2774 	/* ULI M5461 */
2775 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2776 	/* NVIDIA MCP */
2777 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2778 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2779 	  .class_mask = 0xffffff,
2780 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2781 	/* Teradici */
2782 	{ PCI_DEVICE(0x6549, 0x1200),
2783 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2784 	{ PCI_DEVICE(0x6549, 0x2200),
2785 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2786 	/* Creative X-Fi (CA0110-IBG) */
2787 	/* CTHDA chips */
2788 	{ PCI_DEVICE(0x1102, 0x0010),
2789 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2790 	{ PCI_DEVICE(0x1102, 0x0012),
2791 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2792 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2793 	/* the following entry conflicts with snd-ctxfi driver,
2794 	 * as ctxfi driver mutates from HD-audio to native mode with
2795 	 * a special command sequence.
2796 	 */
2797 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2798 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2799 	  .class_mask = 0xffffff,
2800 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2801 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2802 #else
2803 	/* this entry seems still valid -- i.e. without emu20kx chip */
2804 	{ PCI_DEVICE(0x1102, 0x0009),
2805 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2806 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2807 #endif
2808 	/* CM8888 */
2809 	{ PCI_DEVICE(0x13f6, 0x5011),
2810 	  .driver_data = AZX_DRIVER_CMEDIA |
2811 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2812 	/* Vortex86MX */
2813 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2814 	/* VMware HDAudio */
2815 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2816 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2817 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2818 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2819 	  .class_mask = 0xffffff,
2820 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2821 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2822 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2823 	  .class_mask = 0xffffff,
2824 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2825 	/* Zhaoxin */
2826 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2827 	/* Loongson HDAudio*/
2828 	{PCI_DEVICE(PCI_VENDOR_ID_LOONGSON, PCI_DEVICE_ID_LOONGSON_HDA),
2829 	  .driver_data = AZX_DRIVER_LOONGSON },
2830 	{PCI_DEVICE(PCI_VENDOR_ID_LOONGSON, PCI_DEVICE_ID_LOONGSON_HDMI),
2831 	  .driver_data = AZX_DRIVER_LOONGSON },
2832 	{ 0, }
2833 };
2834 MODULE_DEVICE_TABLE(pci, azx_ids);
2835 
2836 /* pci_driver definition */
2837 static struct pci_driver azx_driver = {
2838 	.name = KBUILD_MODNAME,
2839 	.id_table = azx_ids,
2840 	.probe = azx_probe,
2841 	.remove = azx_remove,
2842 	.shutdown = azx_shutdown,
2843 	.driver = {
2844 		.pm = AZX_PM_OPS,
2845 	},
2846 };
2847 
2848 module_pci_driver(azx_driver);
2849