xref: /linux/sound/hda/controllers/intel.c (revision e3966940559d52aa1800a008dcfeec218dd31f88)
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
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 #include <linux/dmi.h>
41 
42 #ifdef CONFIG_X86
43 /* for snoop control */
44 #include <asm/set_memory.h>
45 #include <asm/cpufeature.h>
46 #endif
47 #include <sound/core.h>
48 #include <sound/initval.h>
49 #include <sound/hdaudio.h>
50 #include <sound/hda_i915.h>
51 #include <sound/intel-dsp-config.h>
52 #include <linux/vgaarb.h>
53 #include <linux/vga_switcheroo.h>
54 #include <linux/apple-gmux.h>
55 #include <linux/firmware.h>
56 #include <sound/hda_codec.h>
57 #include "intel.h"
58 
59 #define CREATE_TRACE_POINTS
60 #include "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 int pm_blacklist = -1;
179 module_param(pm_blacklist, bint, 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 /* CONFIG_PM */
190 #define power_save	0
191 #define pm_blacklist	0
192 #define power_save_controller	false
193 #endif /* CONFIG_PM */
194 
195 static int align_buffer_size = -1;
196 module_param(align_buffer_size, bint, 0644);
197 MODULE_PARM_DESC(align_buffer_size,
198 		"Force buffer and period sizes to be multiple of 128 bytes.");
199 
200 #ifdef CONFIG_X86
201 static int hda_snoop = -1;
202 module_param_named(snoop, hda_snoop, bint, 0444);
203 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
204 #else
205 #define hda_snoop		true
206 #endif
207 
208 
209 MODULE_LICENSE("GPL");
210 MODULE_DESCRIPTION("Intel HDA driver");
211 
212 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
213 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
214 #define SUPPORT_VGA_SWITCHEROO
215 #endif
216 #endif
217 
218 
219 /*
220  */
221 
222 /* driver types */
223 enum {
224 	AZX_DRIVER_ICH,
225 	AZX_DRIVER_PCH,
226 	AZX_DRIVER_SCH,
227 	AZX_DRIVER_SKL,
228 	AZX_DRIVER_HDMI,
229 	AZX_DRIVER_ATI,
230 	AZX_DRIVER_ATIHDMI,
231 	AZX_DRIVER_ATIHDMI_NS,
232 	AZX_DRIVER_GFHDMI,
233 	AZX_DRIVER_VIA,
234 	AZX_DRIVER_SIS,
235 	AZX_DRIVER_ULI,
236 	AZX_DRIVER_NVIDIA,
237 	AZX_DRIVER_TERA,
238 	AZX_DRIVER_CTX,
239 	AZX_DRIVER_CTHDA,
240 	AZX_DRIVER_CMEDIA,
241 	AZX_DRIVER_ZHAOXIN,
242 	AZX_DRIVER_ZHAOXINHDMI,
243 	AZX_DRIVER_LOONGSON,
244 	AZX_DRIVER_GENERIC,
245 	AZX_NUM_DRIVERS, /* keep this as last entry */
246 };
247 
248 #define azx_get_snoop_type(chip) \
249 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
250 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
251 
252 /* quirks for old Intel chipsets */
253 #define AZX_DCAPS_INTEL_ICH \
254 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
255 
256 /* quirks for Intel PCH */
257 #define AZX_DCAPS_INTEL_PCH_BASE \
258 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
259 	 AZX_DCAPS_SNOOP_TYPE(SCH))
260 
261 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
262 #define AZX_DCAPS_INTEL_PCH_NOPM \
263 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
264 
265 /* PCH for HSW/BDW; with runtime PM */
266 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
267 #define AZX_DCAPS_INTEL_PCH \
268 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
269 
270 /* HSW HDMI */
271 #define AZX_DCAPS_INTEL_HASWELL \
272 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
273 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
274 	 AZX_DCAPS_SNOOP_TYPE(SCH))
275 
276 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
277 #define AZX_DCAPS_INTEL_BROADWELL \
278 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
279 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
280 	 AZX_DCAPS_SNOOP_TYPE(SCH))
281 
282 #define AZX_DCAPS_INTEL_BAYTRAIL \
283 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
284 
285 #define AZX_DCAPS_INTEL_BRASWELL \
286 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
287 	 AZX_DCAPS_I915_COMPONENT)
288 
289 #define AZX_DCAPS_INTEL_SKYLAKE \
290 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
291 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
292 
293 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
294 
295 #define AZX_DCAPS_INTEL_LNL \
296 	(AZX_DCAPS_INTEL_SKYLAKE | AZX_DCAPS_PIO_COMMANDS)
297 
298 /* quirks for ATI SB / AMD Hudson */
299 #define AZX_DCAPS_PRESET_ATI_SB \
300 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
301 	 AZX_DCAPS_SNOOP_TYPE(ATI))
302 
303 /* quirks for ATI/AMD HDMI */
304 #define AZX_DCAPS_PRESET_ATI_HDMI \
305 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
306 	 AZX_DCAPS_NO_MSI64)
307 
308 /* quirks for ATI HDMI with snoop off */
309 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
310 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
311 
312 /* quirks for AMD SB */
313 #define AZX_DCAPS_PRESET_AMD_SB \
314 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
315 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
316 	 AZX_DCAPS_RETRY_PROBE)
317 
318 /* quirks for Nvidia */
319 #define AZX_DCAPS_PRESET_NVIDIA \
320 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
321 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
322 
323 #define AZX_DCAPS_PRESET_CTHDA \
324 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
325 	 AZX_DCAPS_NO_64BIT |\
326 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
327 
328 /*
329  * vga_switcheroo support
330  */
331 #ifdef SUPPORT_VGA_SWITCHEROO
332 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
333 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
334 #else
335 #define use_vga_switcheroo(chip)	0
336 #define needs_eld_notify_link(chip)	false
337 #endif
338 
339 static const char * const driver_short_names[] = {
340 	[AZX_DRIVER_ICH] = "HDA Intel",
341 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
342 	[AZX_DRIVER_SCH] = "HDA Intel MID",
343 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
344 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
345 	[AZX_DRIVER_ATI] = "HDA ATI SB",
346 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
347 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
348 	[AZX_DRIVER_GFHDMI] = "HDA GF HDMI",
349 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
350 	[AZX_DRIVER_SIS] = "HDA SIS966",
351 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
352 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
353 	[AZX_DRIVER_TERA] = "HDA Teradici",
354 	[AZX_DRIVER_CTX] = "HDA Creative",
355 	[AZX_DRIVER_CTHDA] = "HDA Creative",
356 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
357 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
358 	[AZX_DRIVER_ZHAOXINHDMI] = "HDA Zhaoxin HDMI",
359 	[AZX_DRIVER_LOONGSON] = "HDA Loongson",
360 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
361 };
362 
363 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
364 static void set_default_power_save(struct azx *chip);
365 
366 /*
367  * initialize the PCI registers
368  */
369 /* update bits in a PCI register byte */
370 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
371 			    unsigned char mask, unsigned char val)
372 {
373 	unsigned char data;
374 
375 	pci_read_config_byte(pci, reg, &data);
376 	data &= ~mask;
377 	data |= (val & mask);
378 	pci_write_config_byte(pci, reg, data);
379 }
380 
381 static void azx_init_pci(struct azx *chip)
382 {
383 	int snoop_type = azx_get_snoop_type(chip);
384 
385 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
386 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
387 	 * Ensuring these bits are 0 clears playback static on some HD Audio
388 	 * codecs.
389 	 * The PCI register TCSEL is defined in the Intel manuals.
390 	 */
391 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
392 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
393 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
394 	}
395 
396 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
397 	 * we need to enable snoop.
398 	 */
399 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
400 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
401 			azx_snoop(chip));
402 		update_pci_byte(chip->pci,
403 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
404 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
405 	}
406 
407 	/* For NVIDIA HDA, enable snoop */
408 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
409 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
410 			azx_snoop(chip));
411 		update_pci_byte(chip->pci,
412 				NVIDIA_HDA_TRANSREG_ADDR,
413 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
414 		update_pci_byte(chip->pci,
415 				NVIDIA_HDA_ISTRM_COH,
416 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
417 		update_pci_byte(chip->pci,
418 				NVIDIA_HDA_OSTRM_COH,
419 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
420 	}
421 
422 	/* Enable SCH/PCH snoop if needed */
423 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
424 		unsigned short snoop;
425 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
426 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
427 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
428 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
429 			if (!azx_snoop(chip))
430 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
431 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
432 			pci_read_config_word(chip->pci,
433 				INTEL_SCH_HDA_DEVC, &snoop);
434 		}
435 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
436 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
437 			"Disabled" : "Enabled");
438         }
439 }
440 
441 /*
442  * In BXT-P A0, HD-Audio DMA requests is later than expected,
443  * and makes an audio stream sensitive to system latencies when
444  * 24/32 bits are playing.
445  * Adjusting threshold of DMA fifo to force the DMA request
446  * sooner to improve latency tolerance at the expense of power.
447  */
448 static void bxt_reduce_dma_latency(struct azx *chip)
449 {
450 	u32 val;
451 
452 	val = azx_readl(chip, VS_EM4L);
453 	val &= (0x3 << 20);
454 	azx_writel(chip, VS_EM4L, val);
455 }
456 
457 /*
458  * ML_LCAP bits:
459  *  bit 0: 6 MHz Supported
460  *  bit 1: 12 MHz Supported
461  *  bit 2: 24 MHz Supported
462  *  bit 3: 48 MHz Supported
463  *  bit 4: 96 MHz Supported
464  *  bit 5: 192 MHz Supported
465  */
466 static int intel_get_lctl_scf(struct azx *chip)
467 {
468 	struct hdac_bus *bus = azx_bus(chip);
469 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
470 	u32 val, t;
471 	int i;
472 
473 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
474 
475 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
476 		t = preferred_bits[i];
477 		if (val & (1 << t))
478 			return t;
479 	}
480 
481 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
482 	return 0;
483 }
484 
485 static int intel_ml_lctl_set_power(struct azx *chip, int state)
486 {
487 	struct hdac_bus *bus = azx_bus(chip);
488 	u32 val;
489 	int timeout;
490 
491 	/*
492 	 * Changes to LCTL.SCF are only needed for the first multi-link dealing
493 	 * with external codecs
494 	 */
495 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
496 	val &= ~AZX_ML_LCTL_SPA;
497 	val |= state << AZX_ML_LCTL_SPA_SHIFT;
498 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
499 	/* wait for CPA */
500 	timeout = 50;
501 	while (timeout) {
502 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
503 		    AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
504 			return 0;
505 		timeout--;
506 		udelay(10);
507 	}
508 
509 	return -1;
510 }
511 
512 static void intel_init_lctl(struct azx *chip)
513 {
514 	struct hdac_bus *bus = azx_bus(chip);
515 	u32 val;
516 	int ret;
517 
518 	/* 0. check lctl register value is correct or not */
519 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
520 	/* only perform additional configurations if the SCF is initially based on 6MHz */
521 	if ((val & AZX_ML_LCTL_SCF) != 0)
522 		return;
523 
524 	/*
525 	 * Before operating on SPA, CPA must match SPA.
526 	 * Any deviation may result in undefined behavior.
527 	 */
528 	if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
529 		((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
530 		return;
531 
532 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
533 	ret = intel_ml_lctl_set_power(chip, 0);
534 	udelay(100);
535 	if (ret)
536 		goto set_spa;
537 
538 	/* 2. update SCF to select an audio clock different from 6MHz */
539 	val &= ~AZX_ML_LCTL_SCF;
540 	val |= intel_get_lctl_scf(chip);
541 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
542 
543 set_spa:
544 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
545 	intel_ml_lctl_set_power(chip, 1);
546 	udelay(100);
547 }
548 
549 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
550 {
551 	struct hdac_bus *bus = azx_bus(chip);
552 	struct pci_dev *pci = chip->pci;
553 	u32 val;
554 
555 	snd_hdac_set_codec_wakeup(bus, true);
556 	if (chip->driver_type == AZX_DRIVER_SKL) {
557 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
558 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
559 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
560 	}
561 	azx_init_chip(chip, full_reset);
562 	if (chip->driver_type == AZX_DRIVER_SKL) {
563 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
564 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
565 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
566 	}
567 
568 	snd_hdac_set_codec_wakeup(bus, false);
569 
570 	/* reduce dma latency to avoid noise */
571 	if (HDA_CONTROLLER_IS_APL(pci))
572 		bxt_reduce_dma_latency(chip);
573 
574 	if (bus->mlcap != NULL)
575 		intel_init_lctl(chip);
576 }
577 
578 /* calculate runtime delay from LPIB */
579 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
580 				   unsigned int pos)
581 {
582 	struct snd_pcm_substream *substream = azx_dev->core.substream;
583 	int stream = substream->stream;
584 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
585 	int delay;
586 
587 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
588 		delay = pos - lpib_pos;
589 	else
590 		delay = lpib_pos - pos;
591 	if (delay < 0) {
592 		if (delay >= azx_dev->core.delay_negative_threshold)
593 			delay = 0;
594 		else
595 			delay += azx_dev->core.bufsize;
596 	}
597 
598 	if (delay >= azx_dev->core.period_bytes) {
599 		dev_info(chip->card->dev,
600 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
601 			 delay, azx_dev->core.period_bytes);
602 		delay = 0;
603 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
604 		chip->get_delay[stream] = NULL;
605 	}
606 
607 	return bytes_to_frames(substream->runtime, delay);
608 }
609 
610 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
611 
612 /* called from IRQ */
613 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
614 {
615 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
616 	int ok;
617 
618 	ok = azx_position_ok(chip, azx_dev);
619 	if (ok == 1) {
620 		azx_dev->irq_pending = 0;
621 		return ok;
622 	} else if (ok == 0) {
623 		/* bogus IRQ, process it later */
624 		azx_dev->irq_pending = 1;
625 		schedule_work(&hda->irq_pending_work);
626 	}
627 	return 0;
628 }
629 
630 #define display_power(chip, enable) \
631 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
632 
633 /*
634  * Check whether the current DMA position is acceptable for updating
635  * periods.  Returns non-zero if it's OK.
636  *
637  * Many HD-audio controllers appear pretty inaccurate about
638  * the update-IRQ timing.  The IRQ is issued before actually the
639  * data is processed.  So, we need to process it afterwords in a
640  * workqueue.
641  *
642  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
643  */
644 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
645 {
646 	struct snd_pcm_substream *substream = azx_dev->core.substream;
647 	struct snd_pcm_runtime *runtime = substream->runtime;
648 	int stream = substream->stream;
649 	u32 wallclk;
650 	unsigned int pos;
651 	snd_pcm_uframes_t hwptr, target;
652 
653 	/*
654 	 * The value of the WALLCLK register is always 0
655 	 * on the Loongson controller, so we return directly.
656 	 */
657 	if (chip->driver_type == AZX_DRIVER_LOONGSON)
658 		return 1;
659 
660 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
661 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
662 		return -1;	/* bogus (too early) interrupt */
663 
664 	if (chip->get_position[stream])
665 		pos = chip->get_position[stream](chip, azx_dev);
666 	else { /* use the position buffer as default */
667 		pos = azx_get_pos_posbuf(chip, azx_dev);
668 		if (!pos || pos == (u32)-1) {
669 			dev_info(chip->card->dev,
670 				 "Invalid position buffer, using LPIB read method instead.\n");
671 			chip->get_position[stream] = azx_get_pos_lpib;
672 			if (chip->get_position[0] == azx_get_pos_lpib &&
673 			    chip->get_position[1] == azx_get_pos_lpib)
674 				azx_bus(chip)->use_posbuf = false;
675 			pos = azx_get_pos_lpib(chip, azx_dev);
676 			chip->get_delay[stream] = NULL;
677 		} else {
678 			chip->get_position[stream] = azx_get_pos_posbuf;
679 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
680 				chip->get_delay[stream] = azx_get_delay_from_lpib;
681 		}
682 	}
683 
684 	if (pos >= azx_dev->core.bufsize)
685 		pos = 0;
686 
687 	if (WARN_ONCE(!azx_dev->core.period_bytes,
688 		      "hda-intel: zero azx_dev->period_bytes"))
689 		return -1; /* this shouldn't happen! */
690 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
691 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
692 		/* NG - it's below the first next period boundary */
693 		return chip->bdl_pos_adj ? 0 : -1;
694 	azx_dev->core.start_wallclk += wallclk;
695 
696 	if (azx_dev->core.no_period_wakeup)
697 		return 1; /* OK, no need to check period boundary */
698 
699 	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
700 		return 1; /* OK, already in hwptr updating process */
701 
702 	/* check whether the period gets really elapsed */
703 	pos = bytes_to_frames(runtime, pos);
704 	hwptr = runtime->hw_ptr_base + pos;
705 	if (hwptr < runtime->status->hw_ptr)
706 		hwptr += runtime->buffer_size;
707 	target = runtime->hw_ptr_interrupt + runtime->period_size;
708 	if (hwptr < target) {
709 		/* too early wakeup, process it later */
710 		return chip->bdl_pos_adj ? 0 : -1;
711 	}
712 
713 	return 1; /* OK, it's fine */
714 }
715 
716 /*
717  * The work for pending PCM period updates.
718  */
719 static void azx_irq_pending_work(struct work_struct *work)
720 {
721 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
722 	struct azx *chip = &hda->chip;
723 	struct hdac_bus *bus = azx_bus(chip);
724 	struct hdac_stream *s;
725 	int pending, ok;
726 
727 	if (!hda->irq_pending_warned) {
728 		dev_info(chip->card->dev,
729 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
730 			 chip->card->number);
731 		hda->irq_pending_warned = 1;
732 	}
733 
734 	for (;;) {
735 		pending = 0;
736 		spin_lock_irq(&bus->reg_lock);
737 		list_for_each_entry(s, &bus->stream_list, list) {
738 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
739 			if (!azx_dev->irq_pending ||
740 			    !s->substream ||
741 			    !s->running)
742 				continue;
743 			ok = azx_position_ok(chip, azx_dev);
744 			if (ok > 0) {
745 				azx_dev->irq_pending = 0;
746 				spin_unlock(&bus->reg_lock);
747 				snd_pcm_period_elapsed(s->substream);
748 				spin_lock(&bus->reg_lock);
749 			} else if (ok < 0) {
750 				pending = 0;	/* too early */
751 			} else
752 				pending++;
753 		}
754 		spin_unlock_irq(&bus->reg_lock);
755 		if (!pending)
756 			return;
757 		msleep(1);
758 	}
759 }
760 
761 /* clear irq_pending flags and assure no on-going workq */
762 static void azx_clear_irq_pending(struct azx *chip)
763 {
764 	struct hdac_bus *bus = azx_bus(chip);
765 	struct hdac_stream *s;
766 
767 	guard(spinlock_irq)(&bus->reg_lock);
768 	list_for_each_entry(s, &bus->stream_list, list) {
769 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
770 		azx_dev->irq_pending = 0;
771 	}
772 }
773 
774 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
775 {
776 	struct hdac_bus *bus = azx_bus(chip);
777 	int ret;
778 
779 	if (!chip->msi || pci_alloc_irq_vectors(chip->pci, 1, 1, PCI_IRQ_MSI) < 0) {
780 		ret = pci_alloc_irq_vectors(chip->pci, 1, 1, PCI_IRQ_INTX);
781 		if (ret < 0)
782 			return ret;
783 		chip->msi = 0;
784 	}
785 
786 	if (request_irq(chip->pci->irq, azx_interrupt,
787 			chip->msi ? 0 : IRQF_SHARED,
788 			chip->card->irq_descr, chip)) {
789 		dev_err(chip->card->dev,
790 			"unable to grab IRQ %d, disabling device\n",
791 			chip->pci->irq);
792 		if (do_disconnect)
793 			snd_card_disconnect(chip->card);
794 		return -1;
795 	}
796 	bus->irq = chip->pci->irq;
797 	chip->card->sync_irq = bus->irq;
798 	return 0;
799 }
800 
801 /* get the current DMA position with correction on VIA chips */
802 static unsigned int azx_via_get_position(struct azx *chip,
803 					 struct azx_dev *azx_dev)
804 {
805 	unsigned int link_pos, mini_pos, bound_pos;
806 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
807 	unsigned int fifo_size;
808 
809 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
810 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
811 		/* Playback, no problem using link position */
812 		return link_pos;
813 	}
814 
815 	/* Capture */
816 	/* For new chipset,
817 	 * use mod to get the DMA position just like old chipset
818 	 */
819 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
820 	mod_dma_pos %= azx_dev->core.period_bytes;
821 
822 	fifo_size = azx_stream(azx_dev)->fifo_size;
823 
824 	if (azx_dev->insufficient) {
825 		/* Link position never gather than FIFO size */
826 		if (link_pos <= fifo_size)
827 			return 0;
828 
829 		azx_dev->insufficient = 0;
830 	}
831 
832 	if (link_pos <= fifo_size)
833 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
834 	else
835 		mini_pos = link_pos - fifo_size;
836 
837 	/* Find nearest previous boudary */
838 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
839 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
840 	if (mod_link_pos >= fifo_size)
841 		bound_pos = link_pos - mod_link_pos;
842 	else if (mod_dma_pos >= mod_mini_pos)
843 		bound_pos = mini_pos - mod_mini_pos;
844 	else {
845 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
846 		if (bound_pos >= azx_dev->core.bufsize)
847 			bound_pos = 0;
848 	}
849 
850 	/* Calculate real DMA position we want */
851 	return bound_pos + mod_dma_pos;
852 }
853 
854 #define AMD_FIFO_SIZE	32
855 
856 /* get the current DMA position with FIFO size correction */
857 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
858 {
859 	struct snd_pcm_substream *substream = azx_dev->core.substream;
860 	struct snd_pcm_runtime *runtime = substream->runtime;
861 	unsigned int pos, delay;
862 
863 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
864 	if (!runtime)
865 		return pos;
866 
867 	runtime->delay = AMD_FIFO_SIZE;
868 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
869 	if (azx_dev->insufficient) {
870 		if (pos < delay) {
871 			delay = pos;
872 			runtime->delay = bytes_to_frames(runtime, pos);
873 		} else {
874 			azx_dev->insufficient = 0;
875 		}
876 	}
877 
878 	/* correct the DMA position for capture stream */
879 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
880 		if (pos < delay)
881 			pos += azx_dev->core.bufsize;
882 		pos -= delay;
883 	}
884 
885 	return pos;
886 }
887 
888 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
889 				   unsigned int pos)
890 {
891 	struct snd_pcm_substream *substream = azx_dev->core.substream;
892 
893 	/* just read back the calculated value in the above */
894 	return substream->runtime->delay;
895 }
896 
897 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
898 {
899 	azx_stop_chip(chip);
900 	if (!skip_link_reset)
901 		azx_enter_link_reset(chip);
902 	azx_clear_irq_pending(chip);
903 	display_power(chip, false);
904 }
905 
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 
918 	guard(mutex)(&card_list_lock);
919 	list_add(&hda->list, &card_list);
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 
926 	guard(mutex)(&card_list_lock);
927 	list_del_init(&hda->list);
928 }
929 
930 /* trigger power-save check at writing parameter */
931 static int __maybe_unused 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 	if (pm_blacklist > 0)
942 		return 0;
943 
944 	guard(mutex)(&card_list_lock);
945 	list_for_each_entry(hda, &card_list, list) {
946 		chip = &hda->chip;
947 		if (!hda->probe_continued || chip->disabled ||
948 		    hda->runtime_pm_disabled)
949 			continue;
950 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
951 	}
952 	return 0;
953 }
954 
955 /*
956  * power management
957  */
958 static bool azx_is_pm_ready(struct snd_card *card)
959 {
960 	struct azx *chip;
961 	struct hda_intel *hda;
962 
963 	if (!card)
964 		return false;
965 	chip = card->private_data;
966 	hda = container_of(chip, struct hda_intel, chip);
967 	if (chip->disabled || hda->init_failed || !chip->running)
968 		return false;
969 	return true;
970 }
971 
972 static void __azx_runtime_resume(struct azx *chip)
973 {
974 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
975 	struct hdac_bus *bus = azx_bus(chip);
976 	struct hda_codec *codec;
977 	int status;
978 
979 	display_power(chip, true);
980 	if (hda->need_i915_power)
981 		snd_hdac_i915_set_bclk(bus);
982 
983 	/* Read STATESTS before controller reset */
984 	status = azx_readw(chip, STATESTS);
985 
986 	azx_init_pci(chip);
987 	hda_intel_init_chip(chip, true);
988 
989 	/* Avoid codec resume if runtime resume is for system suspend */
990 	if (!chip->pm_prepared) {
991 		list_for_each_codec(codec, &chip->bus) {
992 			if (codec->relaxed_resume)
993 				continue;
994 
995 			if (codec->forced_resume || (status & (1 << codec->addr)))
996 				pm_request_resume(hda_codec_dev(codec));
997 		}
998 	}
999 
1000 	/* power down again for link-controlled chips */
1001 	if (!hda->need_i915_power)
1002 		display_power(chip, false);
1003 }
1004 
1005 static int azx_prepare(struct device *dev)
1006 {
1007 	struct snd_card *card = dev_get_drvdata(dev);
1008 	struct azx *chip;
1009 
1010 	if (!azx_is_pm_ready(card))
1011 		return 0;
1012 
1013 	chip = card->private_data;
1014 	chip->pm_prepared = 1;
1015 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1016 
1017 	flush_work(&azx_bus(chip)->unsol_work);
1018 
1019 	/* HDA controller always requires different WAKEEN for runtime suspend
1020 	 * and system suspend, so don't use direct-complete here.
1021 	 */
1022 	return 0;
1023 }
1024 
1025 static void azx_complete(struct device *dev)
1026 {
1027 	struct snd_card *card = dev_get_drvdata(dev);
1028 	struct azx *chip;
1029 
1030 	if (!azx_is_pm_ready(card))
1031 		return;
1032 
1033 	chip = card->private_data;
1034 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1035 	chip->pm_prepared = 0;
1036 }
1037 
1038 static int azx_suspend(struct device *dev)
1039 {
1040 	struct snd_card *card = dev_get_drvdata(dev);
1041 	struct azx *chip;
1042 
1043 	if (!azx_is_pm_ready(card))
1044 		return 0;
1045 
1046 	chip = card->private_data;
1047 	azx_shutdown_chip(chip);
1048 
1049 	trace_azx_suspend(chip);
1050 	return 0;
1051 }
1052 
1053 static int azx_resume(struct device *dev)
1054 {
1055 	struct snd_card *card = dev_get_drvdata(dev);
1056 	struct azx *chip;
1057 
1058 	if (!azx_is_pm_ready(card))
1059 		return 0;
1060 
1061 	chip = card->private_data;
1062 
1063 	__azx_runtime_resume(chip);
1064 
1065 	trace_azx_resume(chip);
1066 	return 0;
1067 }
1068 
1069 /* put codec down to D3 at hibernation for Intel SKL+;
1070  * otherwise BIOS may still access the codec and screw up the driver
1071  */
1072 static int azx_freeze_noirq(struct device *dev)
1073 {
1074 	struct snd_card *card = dev_get_drvdata(dev);
1075 	struct azx *chip = card->private_data;
1076 	struct pci_dev *pci = to_pci_dev(dev);
1077 
1078 	if (!azx_is_pm_ready(card))
1079 		return 0;
1080 	if (chip->driver_type == AZX_DRIVER_SKL)
1081 		pci_set_power_state(pci, PCI_D3hot);
1082 
1083 	return 0;
1084 }
1085 
1086 static int azx_thaw_noirq(struct device *dev)
1087 {
1088 	struct snd_card *card = dev_get_drvdata(dev);
1089 	struct azx *chip = card->private_data;
1090 	struct pci_dev *pci = to_pci_dev(dev);
1091 
1092 	if (!azx_is_pm_ready(card))
1093 		return 0;
1094 	if (chip->driver_type == AZX_DRIVER_SKL)
1095 		pci_set_power_state(pci, PCI_D0);
1096 
1097 	return 0;
1098 }
1099 
1100 static int azx_runtime_suspend(struct device *dev)
1101 {
1102 	struct snd_card *card = dev_get_drvdata(dev);
1103 	struct azx *chip;
1104 
1105 	if (!azx_is_pm_ready(card))
1106 		return 0;
1107 	chip = card->private_data;
1108 
1109 	/* enable controller wake up event */
1110 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1111 
1112 	azx_shutdown_chip(chip);
1113 	trace_azx_runtime_suspend(chip);
1114 	return 0;
1115 }
1116 
1117 static int azx_runtime_resume(struct device *dev)
1118 {
1119 	struct snd_card *card = dev_get_drvdata(dev);
1120 	struct azx *chip;
1121 
1122 	if (!azx_is_pm_ready(card))
1123 		return 0;
1124 	chip = card->private_data;
1125 	__azx_runtime_resume(chip);
1126 
1127 	/* disable controller Wake Up event*/
1128 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1129 
1130 	trace_azx_runtime_resume(chip);
1131 	return 0;
1132 }
1133 
1134 static int azx_runtime_idle(struct device *dev)
1135 {
1136 	struct snd_card *card = dev_get_drvdata(dev);
1137 	struct azx *chip;
1138 	struct hda_intel *hda;
1139 
1140 	if (!card)
1141 		return 0;
1142 
1143 	chip = card->private_data;
1144 	hda = container_of(chip, struct hda_intel, chip);
1145 	if (chip->disabled || hda->init_failed)
1146 		return 0;
1147 
1148 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1149 	    azx_bus(chip)->codec_powered || !chip->running)
1150 		return -EBUSY;
1151 
1152 	/* ELD notification gets broken when HD-audio bus is off */
1153 	if (needs_eld_notify_link(chip))
1154 		return -EBUSY;
1155 
1156 	return 0;
1157 }
1158 
1159 static const struct dev_pm_ops azx_pm = {
1160 	SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1161 	.prepare = pm_sleep_ptr(azx_prepare),
1162 	.complete = pm_sleep_ptr(azx_complete),
1163 	.freeze_noirq = pm_sleep_ptr(azx_freeze_noirq),
1164 	.thaw_noirq = pm_sleep_ptr(azx_thaw_noirq),
1165 	RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1166 };
1167 
1168 
1169 static int azx_probe_continue(struct azx *chip);
1170 
1171 #ifdef SUPPORT_VGA_SWITCHEROO
1172 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1173 
1174 static void azx_vs_set_state(struct pci_dev *pci,
1175 			     enum vga_switcheroo_state state)
1176 {
1177 	struct snd_card *card = pci_get_drvdata(pci);
1178 	struct azx *chip = card->private_data;
1179 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1180 	struct hda_codec *codec;
1181 	bool disabled;
1182 
1183 	wait_for_completion(&hda->probe_wait);
1184 	if (hda->init_failed)
1185 		return;
1186 
1187 	disabled = (state == VGA_SWITCHEROO_OFF);
1188 	if (chip->disabled == disabled)
1189 		return;
1190 
1191 	if (!hda->probe_continued) {
1192 		chip->disabled = disabled;
1193 		if (!disabled) {
1194 			dev_info(chip->card->dev,
1195 				 "Start delayed initialization\n");
1196 			if (azx_probe_continue(chip) < 0)
1197 				dev_err(chip->card->dev, "initialization error\n");
1198 		}
1199 	} else {
1200 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1201 			 disabled ? "Disabling" : "Enabling");
1202 		if (disabled) {
1203 			list_for_each_codec(codec, &chip->bus) {
1204 				pm_runtime_suspend(hda_codec_dev(codec));
1205 				pm_runtime_disable(hda_codec_dev(codec));
1206 			}
1207 			pm_runtime_suspend(card->dev);
1208 			pm_runtime_disable(card->dev);
1209 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1210 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1211 			 * put ourselves there */
1212 			pci->current_state = PCI_D3cold;
1213 			chip->disabled = true;
1214 			if (snd_hda_lock_devices(&chip->bus))
1215 				dev_warn(chip->card->dev,
1216 					 "Cannot lock devices!\n");
1217 		} else {
1218 			snd_hda_unlock_devices(&chip->bus);
1219 			chip->disabled = false;
1220 			pm_runtime_enable(card->dev);
1221 			list_for_each_codec(codec, &chip->bus) {
1222 				pm_runtime_enable(hda_codec_dev(codec));
1223 				pm_runtime_resume(hda_codec_dev(codec));
1224 			}
1225 		}
1226 	}
1227 }
1228 
1229 static bool azx_vs_can_switch(struct pci_dev *pci)
1230 {
1231 	struct snd_card *card = pci_get_drvdata(pci);
1232 	struct azx *chip = card->private_data;
1233 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1234 
1235 	wait_for_completion(&hda->probe_wait);
1236 	if (hda->init_failed)
1237 		return false;
1238 	if (chip->disabled || !hda->probe_continued)
1239 		return true;
1240 	if (snd_hda_lock_devices(&chip->bus))
1241 		return false;
1242 	snd_hda_unlock_devices(&chip->bus);
1243 	return true;
1244 }
1245 
1246 /*
1247  * The discrete GPU cannot power down unless the HDA controller runtime
1248  * suspends, so activate runtime PM on codecs even if power_save == 0.
1249  */
1250 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1251 {
1252 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1253 	struct hda_codec *codec;
1254 
1255 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1256 		list_for_each_codec(codec, &chip->bus)
1257 			codec->auto_runtime_pm = 1;
1258 		/* reset the power save setup */
1259 		if (chip->running)
1260 			set_default_power_save(chip);
1261 	}
1262 }
1263 
1264 static void azx_vs_gpu_bound(struct pci_dev *pci,
1265 			     enum vga_switcheroo_client_id client_id)
1266 {
1267 	struct snd_card *card = pci_get_drvdata(pci);
1268 	struct azx *chip = card->private_data;
1269 
1270 	if (client_id == VGA_SWITCHEROO_DIS)
1271 		chip->bus.keep_power = 0;
1272 	setup_vga_switcheroo_runtime_pm(chip);
1273 }
1274 
1275 static void init_vga_switcheroo(struct azx *chip)
1276 {
1277 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1278 	struct pci_dev *p = get_bound_vga(chip->pci);
1279 	struct pci_dev *parent;
1280 	if (p) {
1281 		dev_info(chip->card->dev,
1282 			 "Handle vga_switcheroo audio client\n");
1283 		hda->use_vga_switcheroo = 1;
1284 
1285 		/* cleared in either gpu_bound op or codec probe, or when its
1286 		 * upstream port has _PR3 (i.e. dGPU).
1287 		 */
1288 		parent = pci_upstream_bridge(p);
1289 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1290 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1291 		pci_dev_put(p);
1292 	}
1293 }
1294 
1295 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1296 	.set_gpu_state = azx_vs_set_state,
1297 	.can_switch = azx_vs_can_switch,
1298 	.gpu_bound = azx_vs_gpu_bound,
1299 };
1300 
1301 static int register_vga_switcheroo(struct azx *chip)
1302 {
1303 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1304 	struct pci_dev *p;
1305 	int err;
1306 
1307 	if (!hda->use_vga_switcheroo)
1308 		return 0;
1309 
1310 	p = get_bound_vga(chip->pci);
1311 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1312 	pci_dev_put(p);
1313 
1314 	if (err < 0)
1315 		return err;
1316 	hda->vga_switcheroo_registered = 1;
1317 
1318 	return 0;
1319 }
1320 #else
1321 #define init_vga_switcheroo(chip)		/* NOP */
1322 #define register_vga_switcheroo(chip)		0
1323 #define check_hdmi_disabled(pci)	false
1324 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1325 #endif /* SUPPORT_VGA_SWITCHER */
1326 
1327 /*
1328  * destructor
1329  */
1330 static void azx_free(struct azx *chip)
1331 {
1332 	struct pci_dev *pci = chip->pci;
1333 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1334 	struct hdac_bus *bus = azx_bus(chip);
1335 
1336 	if (hda->freed)
1337 		return;
1338 
1339 	if (azx_has_pm_runtime(chip) && chip->running) {
1340 		pm_runtime_get_noresume(&pci->dev);
1341 		pm_runtime_forbid(&pci->dev);
1342 		pm_runtime_dont_use_autosuspend(&pci->dev);
1343 	}
1344 
1345 	chip->running = 0;
1346 
1347 	azx_del_card_list(chip);
1348 
1349 	hda->init_failed = 1; /* to be sure */
1350 	complete_all(&hda->probe_wait);
1351 
1352 	if (use_vga_switcheroo(hda)) {
1353 		if (chip->disabled && hda->probe_continued)
1354 			snd_hda_unlock_devices(&chip->bus);
1355 		if (hda->vga_switcheroo_registered) {
1356 			vga_switcheroo_unregister_client(chip->pci);
1357 
1358 			/* Some GPUs don't have sound, and azx_first_init fails,
1359 			 * leaving the device probed but non-functional. As long
1360 			 * as it's probed, the PCI subsystem keeps its runtime
1361 			 * PM status as active. Force it to suspended (as we
1362 			 * actually stop the chip) to allow GPU to suspend via
1363 			 * vga_switcheroo, and print a warning.
1364 			 */
1365 			dev_warn(&pci->dev, "GPU sound probed, but not operational: please add a quirk to driver_denylist\n");
1366 			pm_runtime_disable(&pci->dev);
1367 			pm_runtime_set_suspended(&pci->dev);
1368 			pm_runtime_enable(&pci->dev);
1369 		}
1370 	}
1371 
1372 	if (bus->chip_init) {
1373 		azx_clear_irq_pending(chip);
1374 		azx_stop_all_streams(chip);
1375 		azx_stop_chip(chip);
1376 	}
1377 
1378 	if (bus->irq >= 0)
1379 		free_irq(bus->irq, (void*)chip);
1380 
1381 	azx_free_stream_pages(chip);
1382 	azx_free_streams(chip);
1383 	snd_hdac_bus_exit(bus);
1384 
1385 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1386 	release_firmware(chip->fw);
1387 #endif
1388 	display_power(chip, false);
1389 
1390 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1391 		snd_hdac_i915_exit(bus);
1392 
1393 	hda->freed = 1;
1394 }
1395 
1396 static int azx_dev_disconnect(struct snd_device *device)
1397 {
1398 	struct azx *chip = device->device_data;
1399 	struct hdac_bus *bus = azx_bus(chip);
1400 
1401 	chip->bus.shutdown = 1;
1402 	cancel_work_sync(&bus->unsol_work);
1403 
1404 	return 0;
1405 }
1406 
1407 static int azx_dev_free(struct snd_device *device)
1408 {
1409 	azx_free(device->device_data);
1410 	return 0;
1411 }
1412 
1413 #ifdef SUPPORT_VGA_SWITCHEROO
1414 #ifdef CONFIG_ACPI
1415 /* ATPX is in the integrated GPU's namespace */
1416 static bool atpx_present(void)
1417 {
1418 	struct pci_dev *pdev = NULL;
1419 	acpi_handle dhandle, atpx_handle;
1420 	acpi_status status;
1421 
1422 	while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
1423 		if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
1424 		    (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
1425 			continue;
1426 
1427 		dhandle = ACPI_HANDLE(&pdev->dev);
1428 		if (dhandle) {
1429 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1430 			if (ACPI_SUCCESS(status)) {
1431 				pci_dev_put(pdev);
1432 				return true;
1433 			}
1434 		}
1435 	}
1436 	return false;
1437 }
1438 #else
1439 static bool atpx_present(void)
1440 {
1441 	return false;
1442 }
1443 #endif
1444 
1445 /*
1446  * Check of disabled HDMI controller by vga_switcheroo
1447  */
1448 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1449 {
1450 	struct pci_dev *p;
1451 
1452 	/* check only discrete GPU */
1453 	switch (pci->vendor) {
1454 	case PCI_VENDOR_ID_ATI:
1455 	case PCI_VENDOR_ID_AMD:
1456 		if (pci->devfn == 1) {
1457 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1458 							pci->bus->number, 0);
1459 			if (p) {
1460 				/* ATPX is in the integrated GPU's ACPI namespace
1461 				 * rather than the dGPU's namespace. However,
1462 				 * the dGPU is the one who is involved in
1463 				 * vgaswitcheroo.
1464 				 */
1465 				if (pci_is_display(p) &&
1466 				    (atpx_present() || apple_gmux_detect(NULL, NULL)))
1467 					return p;
1468 				pci_dev_put(p);
1469 			}
1470 		}
1471 		break;
1472 	case PCI_VENDOR_ID_NVIDIA:
1473 		if (pci->devfn == 1) {
1474 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1475 							pci->bus->number, 0);
1476 			if (p) {
1477 				if (pci_is_display(p))
1478 					return p;
1479 				pci_dev_put(p);
1480 			}
1481 		}
1482 		break;
1483 	}
1484 	return NULL;
1485 }
1486 
1487 static bool check_hdmi_disabled(struct pci_dev *pci)
1488 {
1489 	bool vga_inactive = false;
1490 	struct pci_dev *p = get_bound_vga(pci);
1491 
1492 	if (p) {
1493 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1494 			vga_inactive = true;
1495 		pci_dev_put(p);
1496 	}
1497 	return vga_inactive;
1498 }
1499 #endif /* SUPPORT_VGA_SWITCHEROO */
1500 
1501 /*
1502  * allow/deny-listing for position_fix
1503  */
1504 static const struct snd_pci_quirk position_fix_list[] = {
1505 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1506 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1507 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1508 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1509 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1510 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1511 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1512 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1514 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1519 	{}
1520 };
1521 
1522 static int check_position_fix(struct azx *chip, int fix)
1523 {
1524 	const struct snd_pci_quirk *q;
1525 
1526 	switch (fix) {
1527 	case POS_FIX_AUTO:
1528 	case POS_FIX_LPIB:
1529 	case POS_FIX_POSBUF:
1530 	case POS_FIX_VIACOMBO:
1531 	case POS_FIX_COMBO:
1532 	case POS_FIX_SKL:
1533 	case POS_FIX_FIFO:
1534 		return fix;
1535 	}
1536 
1537 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1538 	if (q) {
1539 		dev_info(chip->card->dev,
1540 			 "position_fix set to %d for device %04x:%04x\n",
1541 			 q->value, q->subvendor, q->subdevice);
1542 		return q->value;
1543 	}
1544 
1545 	/* Check VIA/ATI HD Audio Controller exist */
1546 	if (chip->driver_type == AZX_DRIVER_VIA) {
1547 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1548 		return POS_FIX_VIACOMBO;
1549 	}
1550 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1551 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1552 		return POS_FIX_FIFO;
1553 	}
1554 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1555 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1556 		return POS_FIX_LPIB;
1557 	}
1558 	if (chip->driver_type == AZX_DRIVER_SKL) {
1559 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1560 		return POS_FIX_SKL;
1561 	}
1562 	return POS_FIX_AUTO;
1563 }
1564 
1565 static void assign_position_fix(struct azx *chip, int fix)
1566 {
1567 	static const azx_get_pos_callback_t callbacks[] = {
1568 		[POS_FIX_AUTO] = NULL,
1569 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1570 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1571 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1572 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1573 		[POS_FIX_SKL] = azx_get_pos_posbuf,
1574 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1575 	};
1576 
1577 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1578 
1579 	/* combo mode uses LPIB only for playback */
1580 	if (fix == POS_FIX_COMBO)
1581 		chip->get_position[1] = NULL;
1582 
1583 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1584 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1585 		chip->get_delay[0] = chip->get_delay[1] =
1586 			azx_get_delay_from_lpib;
1587 	}
1588 
1589 	if (fix == POS_FIX_FIFO)
1590 		chip->get_delay[0] = chip->get_delay[1] =
1591 			azx_get_delay_from_fifo;
1592 }
1593 
1594 /*
1595  * deny-lists for probe_mask
1596  */
1597 static const struct snd_pci_quirk probe_mask_list[] = {
1598 	/* Thinkpad often breaks the controller communication when accessing
1599 	 * to the non-working (or non-existing) modem codec slot.
1600 	 */
1601 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1602 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1603 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1604 	/* broken BIOS */
1605 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1606 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1607 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1608 	/* forced codec slots */
1609 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1610 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1611 	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1612 	/* WinFast VP200 H (Teradici) user reported broken communication */
1613 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1614 	{}
1615 };
1616 
1617 #define AZX_FORCE_CODEC_MASK	0x100
1618 
1619 static void check_probe_mask(struct azx *chip, int dev)
1620 {
1621 	const struct snd_pci_quirk *q;
1622 
1623 	chip->codec_probe_mask = probe_mask[dev];
1624 	if (chip->codec_probe_mask == -1) {
1625 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1626 		if (q) {
1627 			dev_info(chip->card->dev,
1628 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1629 				 q->value, q->subvendor, q->subdevice);
1630 			chip->codec_probe_mask = q->value;
1631 		}
1632 	}
1633 
1634 	/* check forced option */
1635 	if (chip->codec_probe_mask != -1 &&
1636 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1637 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1638 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1639 			 (int)azx_bus(chip)->codec_mask);
1640 	}
1641 }
1642 
1643 /*
1644  * allow/deny-list for enable_msi
1645  */
1646 static const struct snd_pci_quirk msi_deny_list[] = {
1647 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1648 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1649 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1650 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1651 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1652 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1653 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1654 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1655 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1656 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1657 	{}
1658 };
1659 
1660 static void check_msi(struct azx *chip)
1661 {
1662 	const struct snd_pci_quirk *q;
1663 
1664 	if (enable_msi >= 0) {
1665 		chip->msi = !!enable_msi;
1666 		return;
1667 	}
1668 	chip->msi = 1;	/* enable MSI as default */
1669 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1670 	if (q) {
1671 		dev_info(chip->card->dev,
1672 			 "msi for device %04x:%04x set to %d\n",
1673 			 q->subvendor, q->subdevice, q->value);
1674 		chip->msi = q->value;
1675 		return;
1676 	}
1677 
1678 	/* NVidia chipsets seem to cause troubles with MSI */
1679 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1680 		dev_info(chip->card->dev, "Disabling MSI\n");
1681 		chip->msi = 0;
1682 	}
1683 }
1684 
1685 /* check the snoop mode availability */
1686 static void azx_check_snoop_available(struct azx *chip)
1687 {
1688 	int snoop = hda_snoop;
1689 
1690 	if (snoop >= 0) {
1691 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1692 			 snoop ? "snoop" : "non-snoop");
1693 		chip->snoop = snoop;
1694 		chip->uc_buffer = !snoop;
1695 		return;
1696 	}
1697 
1698 	snoop = true;
1699 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1700 	    chip->driver_type == AZX_DRIVER_VIA) {
1701 		/* force to non-snoop mode for a new VIA controller
1702 		 * when BIOS is set
1703 		 */
1704 		u8 val;
1705 		pci_read_config_byte(chip->pci, 0x42, &val);
1706 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1707 				      chip->pci->revision == 0x20))
1708 			snoop = false;
1709 	}
1710 
1711 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1712 		snoop = false;
1713 
1714 	chip->snoop = snoop;
1715 	if (!snoop) {
1716 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1717 		/* C-Media requires non-cached pages only for CORB/RIRB */
1718 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1719 			chip->uc_buffer = true;
1720 	}
1721 }
1722 
1723 static void azx_probe_work(struct work_struct *work)
1724 {
1725 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1726 	azx_probe_continue(&hda->chip);
1727 }
1728 
1729 static int default_bdl_pos_adj(struct azx *chip)
1730 {
1731 	/* some exceptions: Atoms seem problematic with value 1 */
1732 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1733 		switch (chip->pci->device) {
1734 		case PCI_DEVICE_ID_INTEL_HDA_BYT:
1735 		case PCI_DEVICE_ID_INTEL_HDA_BSW:
1736 			return 32;
1737 		case PCI_DEVICE_ID_INTEL_HDA_APL:
1738 			return 64;
1739 		}
1740 	}
1741 
1742 	switch (chip->driver_type) {
1743 	/*
1744 	 * increase the bdl size for Glenfly Gpus for hardware
1745 	 * limitation on hdac interrupt interval
1746 	 */
1747 	case AZX_DRIVER_GFHDMI:
1748 		return 128;
1749 	case AZX_DRIVER_ICH:
1750 	case AZX_DRIVER_PCH:
1751 		return 1;
1752 	case AZX_DRIVER_ZHAOXINHDMI:
1753 		return 128;
1754 	default:
1755 		return 32;
1756 	}
1757 }
1758 
1759 /*
1760  * constructor
1761  */
1762 static const struct hda_controller_ops pci_hda_ops;
1763 
1764 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1765 		      int dev, unsigned int driver_caps,
1766 		      struct azx **rchip)
1767 {
1768 	static const struct snd_device_ops ops = {
1769 		.dev_disconnect = azx_dev_disconnect,
1770 		.dev_free = azx_dev_free,
1771 	};
1772 	struct hda_intel *hda;
1773 	struct azx *chip;
1774 	int err;
1775 
1776 	*rchip = NULL;
1777 
1778 	err = pcim_enable_device(pci);
1779 	if (err < 0)
1780 		return err;
1781 
1782 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1783 	if (!hda)
1784 		return -ENOMEM;
1785 
1786 	chip = &hda->chip;
1787 	mutex_init(&chip->open_mutex);
1788 	chip->card = card;
1789 	chip->pci = pci;
1790 	chip->ops = &pci_hda_ops;
1791 	chip->driver_caps = driver_caps;
1792 	chip->driver_type = driver_caps & 0xff;
1793 	check_msi(chip);
1794 	chip->dev_index = dev;
1795 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1796 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1797 	INIT_LIST_HEAD(&chip->pcm_list);
1798 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1799 	INIT_LIST_HEAD(&hda->list);
1800 	init_vga_switcheroo(chip);
1801 	init_completion(&hda->probe_wait);
1802 
1803 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1804 
1805 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1806 		chip->fallback_to_single_cmd = 1;
1807 	else /* explicitly set to single_cmd or not */
1808 		chip->single_cmd = single_cmd;
1809 
1810 	azx_check_snoop_available(chip);
1811 
1812 	if (bdl_pos_adj[dev] < 0)
1813 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1814 	else
1815 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1816 
1817 	err = azx_bus_init(chip, model[dev]);
1818 	if (err < 0)
1819 		return err;
1820 
1821 	/* use the non-cached pages in non-snoop mode */
1822 	if (!azx_snoop(chip))
1823 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC;
1824 
1825 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1826 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1827 		chip->bus.core.needs_damn_long_delay = 1;
1828 	}
1829 
1830 	check_probe_mask(chip, dev);
1831 
1832 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1833 	if (err < 0) {
1834 		dev_err(card->dev, "Error creating device [card]!\n");
1835 		azx_free(chip);
1836 		return err;
1837 	}
1838 
1839 	/* continue probing in work context as may trigger request module */
1840 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1841 
1842 	*rchip = chip;
1843 
1844 	return 0;
1845 }
1846 
1847 static int azx_first_init(struct azx *chip)
1848 {
1849 	int dev = chip->dev_index;
1850 	struct pci_dev *pci = chip->pci;
1851 	struct snd_card *card = chip->card;
1852 	struct hdac_bus *bus = azx_bus(chip);
1853 	int err;
1854 	unsigned short gcap;
1855 	unsigned int dma_bits = 64;
1856 
1857 #if BITS_PER_LONG != 64
1858 	/* Fix up base address on ULI M5461 */
1859 	if (chip->driver_type == AZX_DRIVER_ULI) {
1860 		u16 tmp3;
1861 		pci_read_config_word(pci, 0x40, &tmp3);
1862 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1863 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1864 	}
1865 #endif
1866 	/*
1867 	 * Fix response write request not synced to memory when handle
1868 	 * hdac interrupt on Glenfly Gpus
1869 	 */
1870 	if (chip->driver_type == AZX_DRIVER_GFHDMI)
1871 		bus->polling_mode = 1;
1872 
1873 	if (chip->driver_type == AZX_DRIVER_LOONGSON) {
1874 		bus->polling_mode = 1;
1875 		bus->not_use_interrupts = 1;
1876 		bus->access_sdnctl_in_dword = 1;
1877 		if (!chip->jackpoll_interval)
1878 			chip->jackpoll_interval = msecs_to_jiffies(1500);
1879 	}
1880 
1881 	if (chip->driver_type == AZX_DRIVER_ZHAOXINHDMI)
1882 		bus->polling_mode = 1;
1883 
1884 	bus->remap_addr = pcim_iomap_region(pci, 0, "ICH HD audio");
1885 	if (IS_ERR(bus->remap_addr))
1886 		return PTR_ERR(bus->remap_addr);
1887 
1888 	bus->addr = pci_resource_start(pci, 0);
1889 
1890 	if (chip->driver_type == AZX_DRIVER_SKL)
1891 		snd_hdac_bus_parse_capabilities(bus);
1892 
1893 	/*
1894 	 * Some Intel CPUs has always running timer (ART) feature and
1895 	 * controller may have Global time sync reporting capability, so
1896 	 * check both of these before declaring synchronized time reporting
1897 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1898 	 */
1899 	chip->gts_present = false;
1900 
1901 #ifdef CONFIG_X86
1902 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1903 		chip->gts_present = true;
1904 #endif
1905 
1906 	if (chip->msi && chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1907 		dev_dbg(card->dev, "Disabling 64bit MSI\n");
1908 		pci->no_64bit_msi = true;
1909 	}
1910 
1911 	pci_set_master(pci);
1912 
1913 	gcap = azx_readw(chip, GCAP);
1914 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1915 
1916 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1917 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1918 		dma_bits = 40;
1919 
1920 	/* disable SB600 64bit support for safety */
1921 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1922 		struct pci_dev *p_smbus;
1923 		dma_bits = 40;
1924 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1925 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1926 					 NULL);
1927 		if (p_smbus) {
1928 			if (p_smbus->revision < 0x30)
1929 				gcap &= ~AZX_GCAP_64OK;
1930 			pci_dev_put(p_smbus);
1931 		}
1932 	}
1933 
1934 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1935 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1936 		dma_bits = 40;
1937 
1938 	/* disable 64bit DMA address on some devices */
1939 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1940 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1941 		gcap &= ~AZX_GCAP_64OK;
1942 	}
1943 
1944 	/* disable buffer size rounding to 128-byte multiples if supported */
1945 	if (align_buffer_size >= 0)
1946 		chip->align_buffer_size = !!align_buffer_size;
1947 	else {
1948 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1949 			chip->align_buffer_size = 0;
1950 		else
1951 			chip->align_buffer_size = 1;
1952 	}
1953 
1954 	/* allow 64bit DMA address if supported by H/W */
1955 	if (!(gcap & AZX_GCAP_64OK))
1956 		dma_bits = 32;
1957 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1958 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1959 	dma_set_max_seg_size(&pci->dev, UINT_MAX);
1960 
1961 	/* read number of streams from GCAP register instead of using
1962 	 * hardcoded value
1963 	 */
1964 	chip->capture_streams = (gcap >> 8) & 0x0f;
1965 	chip->playback_streams = (gcap >> 12) & 0x0f;
1966 	if (!chip->playback_streams && !chip->capture_streams) {
1967 		/* gcap didn't give any info, switching to old method */
1968 
1969 		switch (chip->driver_type) {
1970 		case AZX_DRIVER_ULI:
1971 			chip->playback_streams = ULI_NUM_PLAYBACK;
1972 			chip->capture_streams = ULI_NUM_CAPTURE;
1973 			break;
1974 		case AZX_DRIVER_ATIHDMI:
1975 		case AZX_DRIVER_ATIHDMI_NS:
1976 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1977 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1978 			break;
1979 		case AZX_DRIVER_GFHDMI:
1980 		case AZX_DRIVER_ZHAOXINHDMI:
1981 		case AZX_DRIVER_GENERIC:
1982 		default:
1983 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1984 			chip->capture_streams = ICH6_NUM_CAPTURE;
1985 			break;
1986 		}
1987 	}
1988 	chip->capture_index_offset = 0;
1989 	chip->playback_index_offset = chip->capture_streams;
1990 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1991 
1992 	/* sanity check for the SDxCTL.STRM field overflow */
1993 	if (chip->num_streams > 15 &&
1994 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1995 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1996 			 "forcing separate stream tags", chip->num_streams);
1997 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1998 	}
1999 
2000 	/* initialize streams */
2001 	err = azx_init_streams(chip);
2002 	if (err < 0)
2003 		return err;
2004 
2005 	err = azx_alloc_stream_pages(chip);
2006 	if (err < 0)
2007 		return err;
2008 
2009 	/* initialize chip */
2010 	azx_init_pci(chip);
2011 
2012 	snd_hdac_i915_set_bclk(bus);
2013 
2014 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2015 
2016 	/* codec detection */
2017 	if (!azx_bus(chip)->codec_mask) {
2018 		dev_err(card->dev, "no codecs found!\n");
2019 		/* keep running the rest for the runtime PM */
2020 	}
2021 
2022 	if (azx_acquire_irq(chip, 0) < 0)
2023 		return -EBUSY;
2024 
2025 	strscpy(card->driver, "HDA-Intel");
2026 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2027 		sizeof(card->shortname));
2028 	snprintf(card->longname, sizeof(card->longname),
2029 		 "%s at 0x%lx irq %i",
2030 		 card->shortname, bus->addr, bus->irq);
2031 
2032 	return 0;
2033 }
2034 
2035 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2036 /* callback from request_firmware_nowait() */
2037 static void azx_firmware_cb(const struct firmware *fw, void *context)
2038 {
2039 	struct snd_card *card = context;
2040 	struct azx *chip = card->private_data;
2041 
2042 	if (fw)
2043 		chip->fw = fw;
2044 	else
2045 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2046 	if (!chip->disabled) {
2047 		/* continue probing */
2048 		azx_probe_continue(chip);
2049 	}
2050 }
2051 #endif
2052 
2053 static int disable_msi_reset_irq(struct azx *chip)
2054 {
2055 	struct hdac_bus *bus = azx_bus(chip);
2056 	int err;
2057 
2058 	free_irq(bus->irq, chip);
2059 	bus->irq = -1;
2060 	chip->card->sync_irq = -1;
2061 	pci_free_irq_vectors(chip->pci);
2062 	chip->msi = 0;
2063 	err = azx_acquire_irq(chip, 1);
2064 	if (err < 0)
2065 		return err;
2066 
2067 	return 0;
2068 }
2069 
2070 /* Denylist for skipping the whole probe:
2071  * some HD-audio PCI entries are exposed without any codecs, and such devices
2072  * should be ignored from the beginning.
2073  */
2074 static const struct pci_device_id driver_denylist[] = {
2075 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2076 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2077 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2078 	{ PCI_DEVICE_SUB(0x1022, 0x15e3, 0x1462, 0xee59) }, /* MSI X870E Tomahawk WiFi */
2079 	{}
2080 };
2081 
2082 static struct pci_device_id driver_denylist_ideapad_z570[] = {
2083 	{ PCI_DEVICE_SUB(0x10de, 0x0bea, 0x0000, 0x0000) }, /* NVIDIA GF108 HDA */
2084 	{}
2085 };
2086 
2087 /* DMI-based denylist, to be used when:
2088  *  - PCI subsystem IDs are zero, impossible to distinguish from valid sound cards.
2089  *  - Different modifications of the same laptop use different GPU models.
2090  */
2091 static const struct dmi_system_id driver_denylist_dmi[] = {
2092 	{
2093 		/* No HDA in NVIDIA DGPU. BIOS disables it, but quirk_nvidia_hda() reenables. */
2094 		.matches = {
2095 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
2096 			DMI_MATCH(DMI_PRODUCT_VERSION, "Ideapad Z570"),
2097 		},
2098 		.driver_data = &driver_denylist_ideapad_z570,
2099 	},
2100 	{}
2101 };
2102 
2103 static const struct hda_controller_ops pci_hda_ops = {
2104 	.disable_msi_reset_irq = disable_msi_reset_irq,
2105 	.position_check = azx_position_check,
2106 };
2107 
2108 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2109 
2110 static int azx_probe(struct pci_dev *pci,
2111 		     const struct pci_device_id *pci_id)
2112 {
2113 	const struct dmi_system_id *dmi;
2114 	struct snd_card *card;
2115 	struct hda_intel *hda;
2116 	struct azx *chip;
2117 	bool schedule_probe;
2118 	int dev;
2119 	int err;
2120 
2121 	if (pci_match_id(driver_denylist, pci)) {
2122 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2123 		return -ENODEV;
2124 	}
2125 
2126 	dmi = dmi_first_match(driver_denylist_dmi);
2127 	if (dmi && pci_match_id(dmi->driver_data, pci)) {
2128 		dev_info(&pci->dev, "Skipping the device on the DMI denylist\n");
2129 		return -ENODEV;
2130 	}
2131 
2132 	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2133 	if (dev >= SNDRV_CARDS)
2134 		return -ENODEV;
2135 	if (!enable[dev]) {
2136 		set_bit(dev, probed_devs);
2137 		return -ENOENT;
2138 	}
2139 
2140 	/*
2141 	 * stop probe if another Intel's DSP driver should be activated
2142 	 */
2143 	if (dmic_detect) {
2144 		err = snd_intel_dsp_driver_probe(pci);
2145 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2146 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2147 			return -ENODEV;
2148 		}
2149 	} else {
2150 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2151 	}
2152 
2153 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2154 			   0, &card);
2155 	if (err < 0) {
2156 		dev_err(&pci->dev, "Error creating card!\n");
2157 		return err;
2158 	}
2159 
2160 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2161 	if (err < 0)
2162 		goto out_free;
2163 	card->private_data = chip;
2164 	hda = container_of(chip, struct hda_intel, chip);
2165 
2166 	pci_set_drvdata(pci, card);
2167 
2168 #ifdef CONFIG_SND_HDA_I915
2169 	/* bind with i915 if needed */
2170 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2171 		err = snd_hdac_i915_init(azx_bus(chip));
2172 		if (err < 0) {
2173 			if (err == -EPROBE_DEFER)
2174 				goto out_free;
2175 
2176 			/* if the controller is bound only with HDMI/DP
2177 			 * (for HSW and BDW), we need to abort the probe;
2178 			 * for other chips, still continue probing as other
2179 			 * codecs can be on the same link.
2180 			 */
2181 			if (HDA_CONTROLLER_IN_GPU(pci)) {
2182 				dev_err_probe(card->dev, err,
2183 					     "HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2184 
2185 				goto out_free;
2186 			} else {
2187 				/* don't bother any longer */
2188 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2189 			}
2190 		}
2191 
2192 		/* HSW/BDW controllers need this power */
2193 		if (HDA_CONTROLLER_IN_GPU(pci))
2194 			hda->need_i915_power = true;
2195 	}
2196 #else
2197 	if (HDA_CONTROLLER_IN_GPU(pci))
2198 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2199 #endif
2200 
2201 	err = register_vga_switcheroo(chip);
2202 	if (err < 0) {
2203 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2204 		goto out_free;
2205 	}
2206 
2207 	if (check_hdmi_disabled(pci)) {
2208 		dev_info(card->dev, "VGA controller is disabled\n");
2209 		dev_info(card->dev, "Delaying initialization\n");
2210 		chip->disabled = true;
2211 	}
2212 
2213 	schedule_probe = !chip->disabled;
2214 
2215 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2216 	if (patch[dev] && *patch[dev]) {
2217 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2218 			 patch[dev]);
2219 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2220 					      &pci->dev, GFP_KERNEL, card,
2221 					      azx_firmware_cb);
2222 		if (err < 0)
2223 			goto out_free;
2224 		schedule_probe = false; /* continued in azx_firmware_cb() */
2225 	}
2226 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2227 
2228 	if (schedule_probe)
2229 		schedule_delayed_work(&hda->probe_work, 0);
2230 
2231 	set_bit(dev, probed_devs);
2232 	if (chip->disabled)
2233 		complete_all(&hda->probe_wait);
2234 	return 0;
2235 
2236 out_free:
2237 	pci_set_drvdata(pci, NULL);
2238 	snd_card_free(card);
2239 	return err;
2240 }
2241 
2242 /* On some boards setting power_save to a non 0 value leads to clicking /
2243  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2244  * figure out how to avoid these sounds, but that is not always feasible.
2245  * So we keep a list of devices where we disable powersaving as its known
2246  * to causes problems on these devices.
2247  */
2248 static const struct snd_pci_quirk power_save_denylist[] = {
2249 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2250 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2251 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2252 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2253 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2254 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2255 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2256 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2257 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2258 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2259 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2260 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2261 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2262 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2263 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2264 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2265 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2266 	/* https://bugs.launchpad.net/bugs/1821663 */
2267 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2268 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2269 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2270 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2271 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2272 	SND_PCI_QUIRK(0x17aa, 0x316e, "Lenovo ThinkCentre M70q", 0),
2273 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2274 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2275 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2276 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2277 	/* https://bugs.launchpad.net/bugs/1821663 */
2278 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2279 	/* KONTRON SinglePC may cause a stall at runtime resume */
2280 	SND_PCI_QUIRK(0x1734, 0x1232, "KONTRON SinglePC", 0),
2281 	/* Dell ALC3271 */
2282 	SND_PCI_QUIRK(0x1028, 0x0962, "Dell ALC3271", 0),
2283 	/* https://bugzilla.kernel.org/show_bug.cgi?id=220210 */
2284 	SND_PCI_QUIRK(0x17aa, 0x5079, "Lenovo Thinkpad E15", 0),
2285 	{}
2286 };
2287 
2288 static void set_default_power_save(struct azx *chip)
2289 {
2290 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2291 	int val = power_save;
2292 
2293 	if (pm_blacklist < 0) {
2294 		const struct snd_pci_quirk *q;
2295 
2296 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2297 		if (q && val) {
2298 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2299 				 q->subvendor, q->subdevice);
2300 			val = 0;
2301 			hda->runtime_pm_disabled = 1;
2302 		}
2303 	} else if (pm_blacklist > 0) {
2304 		dev_info(chip->card->dev, "Forcing power_save to 0 via option\n");
2305 		val = 0;
2306 	}
2307 	snd_hda_set_power_save(&chip->bus, val * 1000);
2308 }
2309 
2310 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2311 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2312 	[AZX_DRIVER_NVIDIA] = 8,
2313 	[AZX_DRIVER_TERA] = 1,
2314 };
2315 
2316 static int azx_probe_continue(struct azx *chip)
2317 {
2318 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2319 	struct hdac_bus *bus = azx_bus(chip);
2320 	struct pci_dev *pci = chip->pci;
2321 	int dev = chip->dev_index;
2322 	int err;
2323 
2324 	if (chip->disabled || hda->init_failed)
2325 		return -EIO;
2326 	if (hda->probe_retry)
2327 		goto probe_retry;
2328 
2329 	to_hda_bus(bus)->bus_probing = 1;
2330 	hda->probe_continued = 1;
2331 
2332 	/* Request display power well for the HDA controller or codec. For
2333 	 * Haswell/Broadwell, both the display HDA controller and codec need
2334 	 * this power. For other platforms, like Baytrail/Braswell, only the
2335 	 * display codec needs the power and it can be released after probe.
2336 	 */
2337 	display_power(chip, true);
2338 
2339 	err = azx_first_init(chip);
2340 	if (err < 0)
2341 		goto out_free;
2342 
2343 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2344 	chip->beep_mode = beep_mode[dev];
2345 #endif
2346 
2347 	chip->ctl_dev_id = ctl_dev_id;
2348 
2349 	/* create codec instances */
2350 	if (bus->codec_mask) {
2351 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2352 		if (err < 0)
2353 			goto out_free;
2354 	}
2355 
2356 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2357 	if (chip->fw) {
2358 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2359 					 chip->fw->data);
2360 		if (err < 0)
2361 			goto out_free;
2362 	}
2363 #endif
2364 
2365  probe_retry:
2366 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2367 		err = azx_codec_configure(chip);
2368 		if (err) {
2369 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2370 			    ++hda->probe_retry < 60) {
2371 				schedule_delayed_work(&hda->probe_work,
2372 						      msecs_to_jiffies(1000));
2373 				return 0; /* keep things up */
2374 			}
2375 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2376 			goto out_free;
2377 		}
2378 	}
2379 
2380 	err = snd_card_register(chip->card);
2381 	if (err < 0)
2382 		goto out_free;
2383 
2384 	setup_vga_switcheroo_runtime_pm(chip);
2385 
2386 	chip->running = 1;
2387 	azx_add_card_list(chip);
2388 
2389 	set_default_power_save(chip);
2390 
2391 	if (azx_has_pm_runtime(chip)) {
2392 		pm_runtime_use_autosuspend(&pci->dev);
2393 		pm_runtime_allow(&pci->dev);
2394 		pm_runtime_put_autosuspend(&pci->dev);
2395 	}
2396 
2397 out_free:
2398 	if (err < 0) {
2399 		pci_set_drvdata(pci, NULL);
2400 		snd_card_free(chip->card);
2401 		return err;
2402 	}
2403 
2404 	if (!hda->need_i915_power)
2405 		display_power(chip, false);
2406 	complete_all(&hda->probe_wait);
2407 	to_hda_bus(bus)->bus_probing = 0;
2408 	hda->probe_retry = 0;
2409 	return 0;
2410 }
2411 
2412 static void azx_remove(struct pci_dev *pci)
2413 {
2414 	struct snd_card *card = pci_get_drvdata(pci);
2415 	struct azx *chip;
2416 	struct hda_intel *hda;
2417 
2418 	if (card) {
2419 		/* cancel the pending probing work */
2420 		chip = card->private_data;
2421 		hda = container_of(chip, struct hda_intel, chip);
2422 		/* FIXME: below is an ugly workaround.
2423 		 * Both device_release_driver() and driver_probe_device()
2424 		 * take *both* the device's and its parent's lock before
2425 		 * calling the remove() and probe() callbacks.  The codec
2426 		 * probe takes the locks of both the codec itself and its
2427 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2428 		 * the PCI controller is unbound, it takes its lock, too
2429 		 * ==> ouch, a deadlock!
2430 		 * As a workaround, we unlock temporarily here the controller
2431 		 * device during cancel_work_sync() call.
2432 		 */
2433 		device_unlock(&pci->dev);
2434 		cancel_delayed_work_sync(&hda->probe_work);
2435 		device_lock(&pci->dev);
2436 
2437 		clear_bit(chip->dev_index, probed_devs);
2438 		pci_set_drvdata(pci, NULL);
2439 		snd_card_free(card);
2440 	}
2441 }
2442 
2443 static void azx_shutdown(struct pci_dev *pci)
2444 {
2445 	struct snd_card *card = pci_get_drvdata(pci);
2446 	struct azx *chip;
2447 
2448 	if (!card)
2449 		return;
2450 	chip = card->private_data;
2451 	if (chip && chip->running)
2452 		__azx_shutdown_chip(chip, true);
2453 }
2454 
2455 /* PCI IDs */
2456 static const struct pci_device_id azx_ids[] = {
2457 	/* CPT */
2458 	{ PCI_DEVICE_DATA(INTEL, HDA_CPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2459 	/* PBG */
2460 	{ PCI_DEVICE_DATA(INTEL, HDA_PBG, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2461 	/* Panther Point */
2462 	{ PCI_DEVICE_DATA(INTEL, HDA_PPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2463 	/* Lynx Point */
2464 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2465 	/* 9 Series */
2466 	{ PCI_DEVICE_DATA(INTEL, HDA_9_SERIES, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2467 	/* Wellsburg */
2468 	{ PCI_DEVICE_DATA(INTEL, HDA_WBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2469 	{ PCI_DEVICE_DATA(INTEL, HDA_WBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2470 	/* Lewisburg */
2471 	{ PCI_DEVICE_DATA(INTEL, HDA_LBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2472 	{ PCI_DEVICE_DATA(INTEL, HDA_LBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2473 	/* Lynx Point-LP */
2474 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2475 	/* Lynx Point-LP */
2476 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2477 	/* Wildcat Point-LP */
2478 	{ PCI_DEVICE_DATA(INTEL, HDA_WPT_LP, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2479 	/* Skylake (Sunrise Point) */
2480 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2481 	/* Skylake-LP (Sunrise Point-LP) */
2482 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2483 	/* Kabylake */
2484 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2485 	/* Kabylake-LP */
2486 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2487 	/* Kabylake-H */
2488 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2489 	/* Coffelake */
2490 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2491 	/* Cannonlake */
2492 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2493 	/* CometLake-LP */
2494 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2495 	/* CometLake-H */
2496 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2497 	{ PCI_DEVICE_DATA(INTEL, HDA_RKL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2498 	/* CometLake-S */
2499 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2500 	/* CometLake-R */
2501 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_R, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2502 	/* Icelake */
2503 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2504 	/* Icelake-H */
2505 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2506 	/* Jasperlake */
2507 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2508 	{ PCI_DEVICE_DATA(INTEL, HDA_JSL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2509 	/* Tigerlake */
2510 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2511 	/* Tigerlake-H */
2512 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2513 	/* DG1 */
2514 	{ PCI_DEVICE_DATA(INTEL, HDA_DG1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2515 	/* DG2 */
2516 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2517 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2518 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_2, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2519 	/* Alderlake-S */
2520 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2521 	/* Alderlake-P */
2522 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2523 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PS, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2524 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2525 	/* Alderlake-M */
2526 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2527 	/* Alderlake-N */
2528 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2529 	/* Elkhart Lake */
2530 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2531 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_3, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2532 	/* Raptor Lake */
2533 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2534 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2535 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2536 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2537 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2538 	{ PCI_DEVICE_DATA(INTEL, HDA_MTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2539 	/* Battlemage */
2540 	{ PCI_DEVICE_DATA(INTEL, HDA_BMG, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2541 	/* Lunarlake-P */
2542 	{ PCI_DEVICE_DATA(INTEL, HDA_LNL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2543 	/* Arrow Lake-S */
2544 	{ PCI_DEVICE_DATA(INTEL, HDA_ARL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2545 	/* Arrow Lake */
2546 	{ PCI_DEVICE_DATA(INTEL, HDA_ARL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2547 	/* Panther Lake */
2548 	{ PCI_DEVICE_DATA(INTEL, HDA_PTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2549 	/* Panther Lake-H */
2550 	{ PCI_DEVICE_DATA(INTEL, HDA_PTL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2551 	/* Wildcat Lake */
2552 	{ PCI_DEVICE_DATA(INTEL, HDA_WCL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2553 	/* Apollolake (Broxton-P) */
2554 	{ PCI_DEVICE_DATA(INTEL, HDA_APL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2555 	/* Gemini-Lake */
2556 	{ PCI_DEVICE_DATA(INTEL, HDA_GML, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2557 	/* Haswell */
2558 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_0, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2559 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_2, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2560 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_3, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2561 	/* Broadwell */
2562 	{ PCI_DEVICE_DATA(INTEL, HDA_BDW, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL) },
2563 	/* 5 Series/3400 */
2564 	{ PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_0, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2565 	{ PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_1, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2566 	/* Poulsbo */
2567 	{ PCI_DEVICE_DATA(INTEL, HDA_POULSBO, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
2568 	  AZX_DCAPS_POSFIX_LPIB) },
2569 	/* Oaktrail */
2570 	{ PCI_DEVICE_DATA(INTEL, HDA_OAKTRAIL, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE) },
2571 	/* BayTrail */
2572 	{ PCI_DEVICE_DATA(INTEL, HDA_BYT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL) },
2573 	/* Braswell */
2574 	{ PCI_DEVICE_DATA(INTEL, HDA_BSW, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL) },
2575 	/* ICH6 */
2576 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH6, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2577 	/* ICH7 */
2578 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH7, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2579 	/* ESB2 */
2580 	{ PCI_DEVICE_DATA(INTEL, HDA_ESB2, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2581 	/* ICH8 */
2582 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH8, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2583 	/* ICH9 */
2584 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH9_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2585 	/* ICH9 */
2586 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH9_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2587 	/* ICH10 */
2588 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH10_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2589 	/* ICH10 */
2590 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH10_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2591 	/* Generic Intel */
2592 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2593 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2594 	  .class_mask = 0xffffff,
2595 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2596 	/* ATI SB 450/600/700/800/900 */
2597 	{ PCI_VDEVICE(ATI, 0x437b),
2598 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2599 	{ PCI_VDEVICE(ATI, 0x4383),
2600 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2601 	/* AMD Hudson */
2602 	{ PCI_VDEVICE(AMD, 0x780d),
2603 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2604 	/* AMD, X370 & co */
2605 	{ PCI_VDEVICE(AMD, 0x1457),
2606 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2607 	/* AMD, X570 & co */
2608 	{ PCI_VDEVICE(AMD, 0x1487),
2609 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2610 	/* AMD Stoney */
2611 	{ PCI_VDEVICE(AMD, 0x157a),
2612 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2613 			 AZX_DCAPS_PM_RUNTIME },
2614 	/* AMD Raven */
2615 	{ PCI_VDEVICE(AMD, 0x15e3),
2616 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2617 	/* ATI HDMI */
2618 	{ PCI_VDEVICE(ATI, 0x0002),
2619 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2620 	  AZX_DCAPS_PM_RUNTIME },
2621 	{ PCI_VDEVICE(ATI, 0x1308),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2623 	{ PCI_VDEVICE(ATI, 0x157a),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2625 	{ PCI_VDEVICE(ATI, 0x15b3),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2627 	{ PCI_VDEVICE(ATI, 0x793b),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2629 	{ PCI_VDEVICE(ATI, 0x7919),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2631 	{ PCI_VDEVICE(ATI, 0x960f),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2633 	{ PCI_VDEVICE(ATI, 0x970f),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2635 	{ PCI_VDEVICE(ATI, 0x9840),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2637 	{ PCI_VDEVICE(ATI, 0xaa00),
2638 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2639 	{ PCI_VDEVICE(ATI, 0xaa08),
2640 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2641 	{ PCI_VDEVICE(ATI, 0xaa10),
2642 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2643 	{ PCI_VDEVICE(ATI, 0xaa18),
2644 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2645 	{ PCI_VDEVICE(ATI, 0xaa20),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2647 	{ PCI_VDEVICE(ATI, 0xaa28),
2648 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2649 	{ PCI_VDEVICE(ATI, 0xaa30),
2650 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2651 	{ PCI_VDEVICE(ATI, 0xaa38),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2653 	{ PCI_VDEVICE(ATI, 0xaa40),
2654 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2655 	{ PCI_VDEVICE(ATI, 0xaa48),
2656 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2657 	{ PCI_VDEVICE(ATI, 0xaa50),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2659 	{ PCI_VDEVICE(ATI, 0xaa58),
2660 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2661 	{ PCI_VDEVICE(ATI, 0xaa60),
2662 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2663 	{ PCI_VDEVICE(ATI, 0xaa68),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2665 	{ PCI_VDEVICE(ATI, 0xaa80),
2666 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2667 	{ PCI_VDEVICE(ATI, 0xaa88),
2668 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2669 	{ PCI_VDEVICE(ATI, 0xaa90),
2670 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2671 	{ PCI_VDEVICE(ATI, 0xaa98),
2672 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2673 	{ PCI_VDEVICE(ATI, 0x9902),
2674 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2675 	{ PCI_VDEVICE(ATI, 0xaaa0),
2676 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2677 	{ PCI_VDEVICE(ATI, 0xaaa8),
2678 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2679 	{ PCI_VDEVICE(ATI, 0xaab0),
2680 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2681 	{ PCI_VDEVICE(ATI, 0xaac0),
2682 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2683 	  AZX_DCAPS_PM_RUNTIME },
2684 	{ PCI_VDEVICE(ATI, 0xaac8),
2685 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2686 	  AZX_DCAPS_PM_RUNTIME },
2687 	{ PCI_VDEVICE(ATI, 0xaad8),
2688 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2689 	  AZX_DCAPS_PM_RUNTIME },
2690 	{ PCI_VDEVICE(ATI, 0xaae0),
2691 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2692 	  AZX_DCAPS_PM_RUNTIME },
2693 	{ PCI_VDEVICE(ATI, 0xaae8),
2694 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2695 	  AZX_DCAPS_PM_RUNTIME },
2696 	{ PCI_VDEVICE(ATI, 0xaaf0),
2697 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2698 	  AZX_DCAPS_PM_RUNTIME },
2699 	{ PCI_VDEVICE(ATI, 0xaaf8),
2700 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2701 	  AZX_DCAPS_PM_RUNTIME },
2702 	{ PCI_VDEVICE(ATI, 0xab00),
2703 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2704 	  AZX_DCAPS_PM_RUNTIME },
2705 	{ PCI_VDEVICE(ATI, 0xab08),
2706 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2707 	  AZX_DCAPS_PM_RUNTIME },
2708 	{ PCI_VDEVICE(ATI, 0xab10),
2709 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2710 	  AZX_DCAPS_PM_RUNTIME },
2711 	{ PCI_VDEVICE(ATI, 0xab18),
2712 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2713 	  AZX_DCAPS_PM_RUNTIME },
2714 	{ PCI_VDEVICE(ATI, 0xab20),
2715 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2716 	  AZX_DCAPS_PM_RUNTIME },
2717 	{ PCI_VDEVICE(ATI, 0xab28),
2718 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2719 	  AZX_DCAPS_PM_RUNTIME },
2720 	{ PCI_VDEVICE(ATI, 0xab30),
2721 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2722 	  AZX_DCAPS_PM_RUNTIME },
2723 	{ PCI_VDEVICE(ATI, 0xab38),
2724 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2725 	  AZX_DCAPS_PM_RUNTIME },
2726 	{ PCI_VDEVICE(ATI, 0xab40),
2727 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2728 	  AZX_DCAPS_PM_RUNTIME },
2729 	/* GLENFLY */
2730 	{ PCI_DEVICE(PCI_VENDOR_ID_GLENFLY, PCI_ANY_ID),
2731 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2732 	  .class_mask = 0xffffff,
2733 	  .driver_data = AZX_DRIVER_GFHDMI | AZX_DCAPS_POSFIX_LPIB |
2734 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2735 	/* VIA VT8251/VT8237A */
2736 	{ PCI_VDEVICE(VIA, 0x3288), .driver_data = AZX_DRIVER_VIA },
2737 	/* VIA GFX VT7122/VX900 */
2738 	{ PCI_VDEVICE(VIA, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2739 	/* VIA GFX VT6122/VX11 */
2740 	{ PCI_VDEVICE(VIA, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2741 	/* SIS966 */
2742 	{ PCI_VDEVICE(SI, 0x7502), .driver_data = AZX_DRIVER_SIS },
2743 	/* ULI M5461 */
2744 	{ PCI_VDEVICE(AL, 0x5461), .driver_data = AZX_DRIVER_ULI },
2745 	/* NVIDIA MCP */
2746 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2747 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2748 	  .class_mask = 0xffffff,
2749 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2750 	/* Teradici */
2751 	{ PCI_DEVICE(0x6549, 0x1200),
2752 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2753 	{ PCI_DEVICE(0x6549, 0x2200),
2754 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2755 	/* Creative X-Fi (CA0110-IBG) */
2756 	/* CTHDA chips */
2757 	{ PCI_VDEVICE(CREATIVE, 0x0010),
2758 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2759 	{ PCI_VDEVICE(CREATIVE, 0x0012),
2760 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2761 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2762 	/* the following entry conflicts with snd-ctxfi driver,
2763 	 * as ctxfi driver mutates from HD-audio to native mode with
2764 	 * a special command sequence.
2765 	 */
2766 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2767 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2768 	  .class_mask = 0xffffff,
2769 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2770 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2771 #else
2772 	/* this entry seems still valid -- i.e. without emu20kx chip */
2773 	{ PCI_VDEVICE(CREATIVE, 0x0009),
2774 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2775 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2776 #endif
2777 	/* CM8888 */
2778 	{ PCI_VDEVICE(CMEDIA, 0x5011),
2779 	  .driver_data = AZX_DRIVER_CMEDIA |
2780 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2781 	/* Vortex86MX */
2782 	{ PCI_VDEVICE(RDC, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2783 	/* VMware HDAudio */
2784 	{ PCI_VDEVICE(VMWARE, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2785 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2786 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2787 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2788 	  .class_mask = 0xffffff,
2789 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2790 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2791 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2792 	  .class_mask = 0xffffff,
2793 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2794 	/* Zhaoxin */
2795 	{ PCI_VDEVICE(ZHAOXIN, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2796 	{ PCI_VDEVICE(ZHAOXIN, 0x9141),
2797 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2798 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2799 	{ PCI_VDEVICE(ZHAOXIN, 0x9142),
2800 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2801 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2802 	{ PCI_VDEVICE(ZHAOXIN, 0x9144),
2803 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2804 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2805 	{ PCI_VDEVICE(ZHAOXIN, 0x9145),
2806 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2807 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2808 	{ PCI_VDEVICE(ZHAOXIN, 0x9146),
2809 	 .driver_data = AZX_DRIVER_ZHAOXINHDMI | AZX_DCAPS_POSFIX_LPIB |
2810 	 AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2811 	/* Loongson HDAudio*/
2812 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDA),
2813 	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL },
2814 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDMI),
2815 	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL },
2816 	{ 0, }
2817 };
2818 MODULE_DEVICE_TABLE(pci, azx_ids);
2819 
2820 /* pci_driver definition */
2821 static struct pci_driver azx_driver = {
2822 	.name = KBUILD_MODNAME,
2823 	.id_table = azx_ids,
2824 	.probe = azx_probe,
2825 	.remove = azx_remove,
2826 	.shutdown = azx_shutdown,
2827 	.driver = {
2828 		.pm = pm_ptr(&azx_pm),
2829 	},
2830 };
2831 
2832 module_pci_driver(azx_driver);
2833