xref: /linux/sound/pci/hda/hda_intel.c (revision be602cde657ee43d23adbf309be6d700d0106dc9)
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 
41 #ifdef CONFIG_X86
42 /* for snoop control */
43 #include <asm/set_memory.h>
44 #include <asm/cpufeature.h>
45 #endif
46 #include <sound/core.h>
47 #include <sound/initval.h>
48 #include <sound/hdaudio.h>
49 #include <sound/hda_i915.h>
50 #include <sound/intel-dsp-config.h>
51 #include <linux/vgaarb.h>
52 #include <linux/vga_switcheroo.h>
53 #include <linux/apple-gmux.h>
54 #include <linux/firmware.h>
55 #include <sound/hda_codec.h>
56 #include "hda_controller.h"
57 #include "hda_intel.h"
58 
59 #define CREATE_TRACE_POINTS
60 #include "hda_intel_trace.h"
61 
62 /* position fix mode */
63 enum {
64 	POS_FIX_AUTO,
65 	POS_FIX_LPIB,
66 	POS_FIX_POSBUF,
67 	POS_FIX_VIACOMBO,
68 	POS_FIX_COMBO,
69 	POS_FIX_SKL,
70 	POS_FIX_FIFO,
71 };
72 
73 /* Defines for ATI HD Audio support in SB450 south bridge */
74 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
75 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
76 
77 /* Defines for Nvidia HDA support */
78 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
79 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
80 #define NVIDIA_HDA_ISTRM_COH          0x4d
81 #define NVIDIA_HDA_OSTRM_COH          0x4c
82 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
83 
84 /* Defines for Intel SCH HDA snoop control */
85 #define INTEL_HDA_CGCTL	 0x48
86 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
87 #define INTEL_SCH_HDA_DEVC      0x78
88 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
89 
90 /* max number of SDs */
91 /* ICH, ATI and VIA have 4 playback and 4 capture */
92 #define ICH6_NUM_CAPTURE	4
93 #define ICH6_NUM_PLAYBACK	4
94 
95 /* ULI has 6 playback and 5 capture */
96 #define ULI_NUM_CAPTURE		5
97 #define ULI_NUM_PLAYBACK	6
98 
99 /* ATI HDMI may have up to 8 playbacks and 0 capture */
100 #define ATIHDMI_NUM_CAPTURE	0
101 #define ATIHDMI_NUM_PLAYBACK	8
102 
103 
104 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
105 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
106 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
107 static char *model[SNDRV_CARDS];
108 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
109 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
110 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
111 static int probe_only[SNDRV_CARDS];
112 static int jackpoll_ms[SNDRV_CARDS];
113 static int single_cmd = -1;
114 static int enable_msi = -1;
115 #ifdef CONFIG_SND_HDA_PATCH_LOADER
116 static char *patch[SNDRV_CARDS];
117 #endif
118 #ifdef CONFIG_SND_HDA_INPUT_BEEP
119 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
120 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
121 #endif
122 static bool dmic_detect = 1;
123 static bool ctl_dev_id = IS_ENABLED(CONFIG_SND_HDA_CTL_DEV_ID) ? 1 : 0;
124 
125 module_param_array(index, int, NULL, 0444);
126 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
127 module_param_array(id, charp, NULL, 0444);
128 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
129 module_param_array(enable, bool, NULL, 0444);
130 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
131 module_param_array(model, charp, NULL, 0444);
132 MODULE_PARM_DESC(model, "Use the given board model.");
133 module_param_array(position_fix, int, NULL, 0444);
134 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
135 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
136 module_param_array(bdl_pos_adj, int, NULL, 0644);
137 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
138 module_param_array(probe_mask, int, NULL, 0444);
139 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
140 module_param_array(probe_only, int, NULL, 0444);
141 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
142 module_param_array(jackpoll_ms, int, NULL, 0444);
143 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
144 module_param(single_cmd, bint, 0444);
145 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
146 		 "(for debugging only).");
147 module_param(enable_msi, bint, 0444);
148 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
149 #ifdef CONFIG_SND_HDA_PATCH_LOADER
150 module_param_array(patch, charp, NULL, 0444);
151 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
152 #endif
153 #ifdef CONFIG_SND_HDA_INPUT_BEEP
154 module_param_array(beep_mode, bool, NULL, 0444);
155 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
156 			    "(0=off, 1=on) (default=1).");
157 #endif
158 module_param(dmic_detect, bool, 0444);
159 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
160 			     "(0=off, 1=on) (default=1); "
161 		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
162 module_param(ctl_dev_id, bool, 0444);
163 MODULE_PARM_DESC(ctl_dev_id, "Use control device identifier (based on codec address).");
164 
165 #ifdef CONFIG_PM
166 static int param_set_xint(const char *val, const struct kernel_param *kp);
167 static const struct kernel_param_ops param_ops_xint = {
168 	.set = param_set_xint,
169 	.get = param_get_int,
170 };
171 #define param_check_xint param_check_int
172 
173 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
174 module_param(power_save, xint, 0644);
175 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
176 		 "(in second, 0 = disable).");
177 
178 static 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_LOONGSON,
243 	AZX_DRIVER_GENERIC,
244 	AZX_NUM_DRIVERS, /* keep this as last entry */
245 };
246 
247 #define azx_get_snoop_type(chip) \
248 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
249 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
250 
251 /* quirks for old Intel chipsets */
252 #define AZX_DCAPS_INTEL_ICH \
253 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
254 
255 /* quirks for Intel PCH */
256 #define AZX_DCAPS_INTEL_PCH_BASE \
257 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
258 	 AZX_DCAPS_SNOOP_TYPE(SCH))
259 
260 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
261 #define AZX_DCAPS_INTEL_PCH_NOPM \
262 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
263 
264 /* PCH for HSW/BDW; with runtime PM */
265 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
266 #define AZX_DCAPS_INTEL_PCH \
267 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
268 
269 /* HSW HDMI */
270 #define AZX_DCAPS_INTEL_HASWELL \
271 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
272 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
273 	 AZX_DCAPS_SNOOP_TYPE(SCH))
274 
275 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
276 #define AZX_DCAPS_INTEL_BROADWELL \
277 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
278 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
279 	 AZX_DCAPS_SNOOP_TYPE(SCH))
280 
281 #define AZX_DCAPS_INTEL_BAYTRAIL \
282 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
283 
284 #define AZX_DCAPS_INTEL_BRASWELL \
285 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
286 	 AZX_DCAPS_I915_COMPONENT)
287 
288 #define AZX_DCAPS_INTEL_SKYLAKE \
289 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
290 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
291 
292 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
293 
294 #define AZX_DCAPS_INTEL_LNL \
295 	(AZX_DCAPS_INTEL_SKYLAKE | AZX_DCAPS_PIO_COMMANDS)
296 
297 /* quirks for ATI SB / AMD Hudson */
298 #define AZX_DCAPS_PRESET_ATI_SB \
299 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
300 	 AZX_DCAPS_SNOOP_TYPE(ATI))
301 
302 /* quirks for ATI/AMD HDMI */
303 #define AZX_DCAPS_PRESET_ATI_HDMI \
304 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
305 	 AZX_DCAPS_NO_MSI64)
306 
307 /* quirks for ATI HDMI with snoop off */
308 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
309 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
310 
311 /* quirks for AMD SB */
312 #define AZX_DCAPS_PRESET_AMD_SB \
313 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
314 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
315 	 AZX_DCAPS_RETRY_PROBE)
316 
317 /* quirks for Nvidia */
318 #define AZX_DCAPS_PRESET_NVIDIA \
319 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
320 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
321 
322 #define AZX_DCAPS_PRESET_CTHDA \
323 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
324 	 AZX_DCAPS_NO_64BIT |\
325 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
326 
327 /*
328  * vga_switcheroo support
329  */
330 #ifdef SUPPORT_VGA_SWITCHEROO
331 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
332 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
333 #else
334 #define use_vga_switcheroo(chip)	0
335 #define needs_eld_notify_link(chip)	false
336 #endif
337 
338 static const char * const driver_short_names[] = {
339 	[AZX_DRIVER_ICH] = "HDA Intel",
340 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
341 	[AZX_DRIVER_SCH] = "HDA Intel MID",
342 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
343 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
344 	[AZX_DRIVER_ATI] = "HDA ATI SB",
345 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
346 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
347 	[AZX_DRIVER_GFHDMI] = "HDA GF HDMI",
348 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
349 	[AZX_DRIVER_SIS] = "HDA SIS966",
350 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
351 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
352 	[AZX_DRIVER_TERA] = "HDA Teradici",
353 	[AZX_DRIVER_CTX] = "HDA Creative",
354 	[AZX_DRIVER_CTHDA] = "HDA Creative",
355 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
356 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
357 	[AZX_DRIVER_LOONGSON] = "HDA Loongson",
358 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
359 };
360 
361 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
362 static void set_default_power_save(struct azx *chip);
363 
364 /*
365  * initialize the PCI registers
366  */
367 /* update bits in a PCI register byte */
368 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
369 			    unsigned char mask, unsigned char val)
370 {
371 	unsigned char data;
372 
373 	pci_read_config_byte(pci, reg, &data);
374 	data &= ~mask;
375 	data |= (val & mask);
376 	pci_write_config_byte(pci, reg, data);
377 }
378 
379 static void azx_init_pci(struct azx *chip)
380 {
381 	int snoop_type = azx_get_snoop_type(chip);
382 
383 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
384 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
385 	 * Ensuring these bits are 0 clears playback static on some HD Audio
386 	 * codecs.
387 	 * The PCI register TCSEL is defined in the Intel manuals.
388 	 */
389 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
390 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
391 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
392 	}
393 
394 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
395 	 * we need to enable snoop.
396 	 */
397 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
398 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
399 			azx_snoop(chip));
400 		update_pci_byte(chip->pci,
401 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
402 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
403 	}
404 
405 	/* For NVIDIA HDA, enable snoop */
406 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
407 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
408 			azx_snoop(chip));
409 		update_pci_byte(chip->pci,
410 				NVIDIA_HDA_TRANSREG_ADDR,
411 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
412 		update_pci_byte(chip->pci,
413 				NVIDIA_HDA_ISTRM_COH,
414 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
415 		update_pci_byte(chip->pci,
416 				NVIDIA_HDA_OSTRM_COH,
417 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
418 	}
419 
420 	/* Enable SCH/PCH snoop if needed */
421 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
422 		unsigned short snoop;
423 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
424 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
425 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
426 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
427 			if (!azx_snoop(chip))
428 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
429 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
430 			pci_read_config_word(chip->pci,
431 				INTEL_SCH_HDA_DEVC, &snoop);
432 		}
433 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
434 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
435 			"Disabled" : "Enabled");
436         }
437 }
438 
439 /*
440  * In BXT-P A0, HD-Audio DMA requests is later than expected,
441  * and makes an audio stream sensitive to system latencies when
442  * 24/32 bits are playing.
443  * Adjusting threshold of DMA fifo to force the DMA request
444  * sooner to improve latency tolerance at the expense of power.
445  */
446 static void bxt_reduce_dma_latency(struct azx *chip)
447 {
448 	u32 val;
449 
450 	val = azx_readl(chip, VS_EM4L);
451 	val &= (0x3 << 20);
452 	azx_writel(chip, VS_EM4L, val);
453 }
454 
455 /*
456  * ML_LCAP bits:
457  *  bit 0: 6 MHz Supported
458  *  bit 1: 12 MHz Supported
459  *  bit 2: 24 MHz Supported
460  *  bit 3: 48 MHz Supported
461  *  bit 4: 96 MHz Supported
462  *  bit 5: 192 MHz Supported
463  */
464 static int intel_get_lctl_scf(struct azx *chip)
465 {
466 	struct hdac_bus *bus = azx_bus(chip);
467 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
468 	u32 val, t;
469 	int i;
470 
471 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
472 
473 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
474 		t = preferred_bits[i];
475 		if (val & (1 << t))
476 			return t;
477 	}
478 
479 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
480 	return 0;
481 }
482 
483 static int intel_ml_lctl_set_power(struct azx *chip, int state)
484 {
485 	struct hdac_bus *bus = azx_bus(chip);
486 	u32 val;
487 	int timeout;
488 
489 	/*
490 	 * Changes to LCTL.SCF are only needed for the first multi-link dealing
491 	 * with external codecs
492 	 */
493 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
494 	val &= ~AZX_ML_LCTL_SPA;
495 	val |= state << AZX_ML_LCTL_SPA_SHIFT;
496 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
497 	/* wait for CPA */
498 	timeout = 50;
499 	while (timeout) {
500 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
501 		    AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
502 			return 0;
503 		timeout--;
504 		udelay(10);
505 	}
506 
507 	return -1;
508 }
509 
510 static void intel_init_lctl(struct azx *chip)
511 {
512 	struct hdac_bus *bus = azx_bus(chip);
513 	u32 val;
514 	int ret;
515 
516 	/* 0. check lctl register value is correct or not */
517 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
518 	/* only perform additional configurations if the SCF is initially based on 6MHz */
519 	if ((val & AZX_ML_LCTL_SCF) != 0)
520 		return;
521 
522 	/*
523 	 * Before operating on SPA, CPA must match SPA.
524 	 * Any deviation may result in undefined behavior.
525 	 */
526 	if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
527 		((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
528 		return;
529 
530 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
531 	ret = intel_ml_lctl_set_power(chip, 0);
532 	udelay(100);
533 	if (ret)
534 		goto set_spa;
535 
536 	/* 2. update SCF to select an audio clock different from 6MHz */
537 	val &= ~AZX_ML_LCTL_SCF;
538 	val |= intel_get_lctl_scf(chip);
539 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
540 
541 set_spa:
542 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
543 	intel_ml_lctl_set_power(chip, 1);
544 	udelay(100);
545 }
546 
547 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
548 {
549 	struct hdac_bus *bus = azx_bus(chip);
550 	struct pci_dev *pci = chip->pci;
551 	u32 val;
552 
553 	snd_hdac_set_codec_wakeup(bus, true);
554 	if (chip->driver_type == AZX_DRIVER_SKL) {
555 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
556 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
557 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
558 	}
559 	azx_init_chip(chip, full_reset);
560 	if (chip->driver_type == AZX_DRIVER_SKL) {
561 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
562 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
563 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
564 	}
565 
566 	snd_hdac_set_codec_wakeup(bus, false);
567 
568 	/* reduce dma latency to avoid noise */
569 	if (HDA_CONTROLLER_IS_APL(pci))
570 		bxt_reduce_dma_latency(chip);
571 
572 	if (bus->mlcap != NULL)
573 		intel_init_lctl(chip);
574 }
575 
576 /* calculate runtime delay from LPIB */
577 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
578 				   unsigned int pos)
579 {
580 	struct snd_pcm_substream *substream = azx_dev->core.substream;
581 	int stream = substream->stream;
582 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
583 	int delay;
584 
585 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
586 		delay = pos - lpib_pos;
587 	else
588 		delay = lpib_pos - pos;
589 	if (delay < 0) {
590 		if (delay >= azx_dev->core.delay_negative_threshold)
591 			delay = 0;
592 		else
593 			delay += azx_dev->core.bufsize;
594 	}
595 
596 	if (delay >= azx_dev->core.period_bytes) {
597 		dev_info(chip->card->dev,
598 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
599 			 delay, azx_dev->core.period_bytes);
600 		delay = 0;
601 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
602 		chip->get_delay[stream] = NULL;
603 	}
604 
605 	return bytes_to_frames(substream->runtime, delay);
606 }
607 
608 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
609 
610 /* called from IRQ */
611 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
612 {
613 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
614 	int ok;
615 
616 	ok = azx_position_ok(chip, azx_dev);
617 	if (ok == 1) {
618 		azx_dev->irq_pending = 0;
619 		return ok;
620 	} else if (ok == 0) {
621 		/* bogus IRQ, process it later */
622 		azx_dev->irq_pending = 1;
623 		schedule_work(&hda->irq_pending_work);
624 	}
625 	return 0;
626 }
627 
628 #define display_power(chip, enable) \
629 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
630 
631 /*
632  * Check whether the current DMA position is acceptable for updating
633  * periods.  Returns non-zero if it's OK.
634  *
635  * Many HD-audio controllers appear pretty inaccurate about
636  * the update-IRQ timing.  The IRQ is issued before actually the
637  * data is processed.  So, we need to process it afterwords in a
638  * workqueue.
639  *
640  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
641  */
642 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
643 {
644 	struct snd_pcm_substream *substream = azx_dev->core.substream;
645 	struct snd_pcm_runtime *runtime = substream->runtime;
646 	int stream = substream->stream;
647 	u32 wallclk;
648 	unsigned int pos;
649 	snd_pcm_uframes_t hwptr, target;
650 
651 	/*
652 	 * The value of the WALLCLK register is always 0
653 	 * on the Loongson controller, so we return directly.
654 	 */
655 	if (chip->driver_type == AZX_DRIVER_LOONGSON)
656 		return 1;
657 
658 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
659 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
660 		return -1;	/* bogus (too early) interrupt */
661 
662 	if (chip->get_position[stream])
663 		pos = chip->get_position[stream](chip, azx_dev);
664 	else { /* use the position buffer as default */
665 		pos = azx_get_pos_posbuf(chip, azx_dev);
666 		if (!pos || pos == (u32)-1) {
667 			dev_info(chip->card->dev,
668 				 "Invalid position buffer, using LPIB read method instead.\n");
669 			chip->get_position[stream] = azx_get_pos_lpib;
670 			if (chip->get_position[0] == azx_get_pos_lpib &&
671 			    chip->get_position[1] == azx_get_pos_lpib)
672 				azx_bus(chip)->use_posbuf = false;
673 			pos = azx_get_pos_lpib(chip, azx_dev);
674 			chip->get_delay[stream] = NULL;
675 		} else {
676 			chip->get_position[stream] = azx_get_pos_posbuf;
677 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
678 				chip->get_delay[stream] = azx_get_delay_from_lpib;
679 		}
680 	}
681 
682 	if (pos >= azx_dev->core.bufsize)
683 		pos = 0;
684 
685 	if (WARN_ONCE(!azx_dev->core.period_bytes,
686 		      "hda-intel: zero azx_dev->period_bytes"))
687 		return -1; /* this shouldn't happen! */
688 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
689 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
690 		/* NG - it's below the first next period boundary */
691 		return chip->bdl_pos_adj ? 0 : -1;
692 	azx_dev->core.start_wallclk += wallclk;
693 
694 	if (azx_dev->core.no_period_wakeup)
695 		return 1; /* OK, no need to check period boundary */
696 
697 	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
698 		return 1; /* OK, already in hwptr updating process */
699 
700 	/* check whether the period gets really elapsed */
701 	pos = bytes_to_frames(runtime, pos);
702 	hwptr = runtime->hw_ptr_base + pos;
703 	if (hwptr < runtime->status->hw_ptr)
704 		hwptr += runtime->buffer_size;
705 	target = runtime->hw_ptr_interrupt + runtime->period_size;
706 	if (hwptr < target) {
707 		/* too early wakeup, process it later */
708 		return chip->bdl_pos_adj ? 0 : -1;
709 	}
710 
711 	return 1; /* OK, it's fine */
712 }
713 
714 /*
715  * The work for pending PCM period updates.
716  */
717 static void azx_irq_pending_work(struct work_struct *work)
718 {
719 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
720 	struct azx *chip = &hda->chip;
721 	struct hdac_bus *bus = azx_bus(chip);
722 	struct hdac_stream *s;
723 	int pending, ok;
724 
725 	if (!hda->irq_pending_warned) {
726 		dev_info(chip->card->dev,
727 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
728 			 chip->card->number);
729 		hda->irq_pending_warned = 1;
730 	}
731 
732 	for (;;) {
733 		pending = 0;
734 		spin_lock_irq(&bus->reg_lock);
735 		list_for_each_entry(s, &bus->stream_list, list) {
736 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
737 			if (!azx_dev->irq_pending ||
738 			    !s->substream ||
739 			    !s->running)
740 				continue;
741 			ok = azx_position_ok(chip, azx_dev);
742 			if (ok > 0) {
743 				azx_dev->irq_pending = 0;
744 				spin_unlock(&bus->reg_lock);
745 				snd_pcm_period_elapsed(s->substream);
746 				spin_lock(&bus->reg_lock);
747 			} else if (ok < 0) {
748 				pending = 0;	/* too early */
749 			} else
750 				pending++;
751 		}
752 		spin_unlock_irq(&bus->reg_lock);
753 		if (!pending)
754 			return;
755 		msleep(1);
756 	}
757 }
758 
759 /* clear irq_pending flags and assure no on-going workq */
760 static void azx_clear_irq_pending(struct azx *chip)
761 {
762 	struct hdac_bus *bus = azx_bus(chip);
763 	struct hdac_stream *s;
764 
765 	spin_lock_irq(&bus->reg_lock);
766 	list_for_each_entry(s, &bus->stream_list, list) {
767 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
768 		azx_dev->irq_pending = 0;
769 	}
770 	spin_unlock_irq(&bus->reg_lock);
771 }
772 
773 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
774 {
775 	struct hdac_bus *bus = azx_bus(chip);
776 
777 	if (request_irq(chip->pci->irq, azx_interrupt,
778 			chip->msi ? 0 : IRQF_SHARED,
779 			chip->card->irq_descr, chip)) {
780 		dev_err(chip->card->dev,
781 			"unable to grab IRQ %d, disabling device\n",
782 			chip->pci->irq);
783 		if (do_disconnect)
784 			snd_card_disconnect(chip->card);
785 		return -1;
786 	}
787 	bus->irq = chip->pci->irq;
788 	chip->card->sync_irq = bus->irq;
789 	pci_intx(chip->pci, !chip->msi);
790 	return 0;
791 }
792 
793 /* get the current DMA position with correction on VIA chips */
794 static unsigned int azx_via_get_position(struct azx *chip,
795 					 struct azx_dev *azx_dev)
796 {
797 	unsigned int link_pos, mini_pos, bound_pos;
798 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
799 	unsigned int fifo_size;
800 
801 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
802 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
803 		/* Playback, no problem using link position */
804 		return link_pos;
805 	}
806 
807 	/* Capture */
808 	/* For new chipset,
809 	 * use mod to get the DMA position just like old chipset
810 	 */
811 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
812 	mod_dma_pos %= azx_dev->core.period_bytes;
813 
814 	fifo_size = azx_stream(azx_dev)->fifo_size;
815 
816 	if (azx_dev->insufficient) {
817 		/* Link position never gather than FIFO size */
818 		if (link_pos <= fifo_size)
819 			return 0;
820 
821 		azx_dev->insufficient = 0;
822 	}
823 
824 	if (link_pos <= fifo_size)
825 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
826 	else
827 		mini_pos = link_pos - fifo_size;
828 
829 	/* Find nearest previous boudary */
830 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
831 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
832 	if (mod_link_pos >= fifo_size)
833 		bound_pos = link_pos - mod_link_pos;
834 	else if (mod_dma_pos >= mod_mini_pos)
835 		bound_pos = mini_pos - mod_mini_pos;
836 	else {
837 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
838 		if (bound_pos >= azx_dev->core.bufsize)
839 			bound_pos = 0;
840 	}
841 
842 	/* Calculate real DMA position we want */
843 	return bound_pos + mod_dma_pos;
844 }
845 
846 #define AMD_FIFO_SIZE	32
847 
848 /* get the current DMA position with FIFO size correction */
849 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
850 {
851 	struct snd_pcm_substream *substream = azx_dev->core.substream;
852 	struct snd_pcm_runtime *runtime = substream->runtime;
853 	unsigned int pos, delay;
854 
855 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
856 	if (!runtime)
857 		return pos;
858 
859 	runtime->delay = AMD_FIFO_SIZE;
860 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
861 	if (azx_dev->insufficient) {
862 		if (pos < delay) {
863 			delay = pos;
864 			runtime->delay = bytes_to_frames(runtime, pos);
865 		} else {
866 			azx_dev->insufficient = 0;
867 		}
868 	}
869 
870 	/* correct the DMA position for capture stream */
871 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
872 		if (pos < delay)
873 			pos += azx_dev->core.bufsize;
874 		pos -= delay;
875 	}
876 
877 	return pos;
878 }
879 
880 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
881 				   unsigned int pos)
882 {
883 	struct snd_pcm_substream *substream = azx_dev->core.substream;
884 
885 	/* just read back the calculated value in the above */
886 	return substream->runtime->delay;
887 }
888 
889 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
890 {
891 	azx_stop_chip(chip);
892 	if (!skip_link_reset)
893 		azx_enter_link_reset(chip);
894 	azx_clear_irq_pending(chip);
895 	display_power(chip, false);
896 }
897 
898 static DEFINE_MUTEX(card_list_lock);
899 static LIST_HEAD(card_list);
900 
901 static void azx_shutdown_chip(struct azx *chip)
902 {
903 	__azx_shutdown_chip(chip, false);
904 }
905 
906 static void azx_add_card_list(struct azx *chip)
907 {
908 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
909 	mutex_lock(&card_list_lock);
910 	list_add(&hda->list, &card_list);
911 	mutex_unlock(&card_list_lock);
912 }
913 
914 static void azx_del_card_list(struct azx *chip)
915 {
916 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
917 	mutex_lock(&card_list_lock);
918 	list_del_init(&hda->list);
919 	mutex_unlock(&card_list_lock);
920 }
921 
922 /* trigger power-save check at writing parameter */
923 static int __maybe_unused param_set_xint(const char *val, const struct kernel_param *kp)
924 {
925 	struct hda_intel *hda;
926 	struct azx *chip;
927 	int prev = power_save;
928 	int ret = param_set_int(val, kp);
929 
930 	if (ret || prev == power_save)
931 		return ret;
932 
933 	if (pm_blacklist > 0)
934 		return 0;
935 
936 	mutex_lock(&card_list_lock);
937 	list_for_each_entry(hda, &card_list, list) {
938 		chip = &hda->chip;
939 		if (!hda->probe_continued || chip->disabled ||
940 		    hda->runtime_pm_disabled)
941 			continue;
942 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
943 	}
944 	mutex_unlock(&card_list_lock);
945 	return 0;
946 }
947 
948 /*
949  * power management
950  */
951 static bool azx_is_pm_ready(struct snd_card *card)
952 {
953 	struct azx *chip;
954 	struct hda_intel *hda;
955 
956 	if (!card)
957 		return false;
958 	chip = card->private_data;
959 	hda = container_of(chip, struct hda_intel, chip);
960 	if (chip->disabled || hda->init_failed || !chip->running)
961 		return false;
962 	return true;
963 }
964 
965 static void __azx_runtime_resume(struct azx *chip)
966 {
967 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
968 	struct hdac_bus *bus = azx_bus(chip);
969 	struct hda_codec *codec;
970 	int status;
971 
972 	display_power(chip, true);
973 	if (hda->need_i915_power)
974 		snd_hdac_i915_set_bclk(bus);
975 
976 	/* Read STATESTS before controller reset */
977 	status = azx_readw(chip, STATESTS);
978 
979 	azx_init_pci(chip);
980 	hda_intel_init_chip(chip, true);
981 
982 	/* Avoid codec resume if runtime resume is for system suspend */
983 	if (!chip->pm_prepared) {
984 		list_for_each_codec(codec, &chip->bus) {
985 			if (codec->relaxed_resume)
986 				continue;
987 
988 			if (codec->forced_resume || (status & (1 << codec->addr)))
989 				pm_request_resume(hda_codec_dev(codec));
990 		}
991 	}
992 
993 	/* power down again for link-controlled chips */
994 	if (!hda->need_i915_power)
995 		display_power(chip, false);
996 }
997 
998 static int azx_prepare(struct device *dev)
999 {
1000 	struct snd_card *card = dev_get_drvdata(dev);
1001 	struct azx *chip;
1002 
1003 	if (!azx_is_pm_ready(card))
1004 		return 0;
1005 
1006 	chip = card->private_data;
1007 	chip->pm_prepared = 1;
1008 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1009 
1010 	flush_work(&azx_bus(chip)->unsol_work);
1011 
1012 	/* HDA controller always requires different WAKEEN for runtime suspend
1013 	 * and system suspend, so don't use direct-complete here.
1014 	 */
1015 	return 0;
1016 }
1017 
1018 static void azx_complete(struct device *dev)
1019 {
1020 	struct snd_card *card = dev_get_drvdata(dev);
1021 	struct azx *chip;
1022 
1023 	if (!azx_is_pm_ready(card))
1024 		return;
1025 
1026 	chip = card->private_data;
1027 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1028 	chip->pm_prepared = 0;
1029 }
1030 
1031 static int azx_suspend(struct device *dev)
1032 {
1033 	struct snd_card *card = dev_get_drvdata(dev);
1034 	struct azx *chip;
1035 	struct hdac_bus *bus;
1036 
1037 	if (!azx_is_pm_ready(card))
1038 		return 0;
1039 
1040 	chip = card->private_data;
1041 	bus = azx_bus(chip);
1042 	azx_shutdown_chip(chip);
1043 	if (bus->irq >= 0) {
1044 		free_irq(bus->irq, chip);
1045 		bus->irq = -1;
1046 		chip->card->sync_irq = -1;
1047 	}
1048 
1049 	if (chip->msi)
1050 		pci_disable_msi(chip->pci);
1051 
1052 	trace_azx_suspend(chip);
1053 	return 0;
1054 }
1055 
1056 static int __maybe_unused azx_resume(struct device *dev)
1057 {
1058 	struct snd_card *card = dev_get_drvdata(dev);
1059 	struct azx *chip;
1060 
1061 	if (!azx_is_pm_ready(card))
1062 		return 0;
1063 
1064 	chip = card->private_data;
1065 	if (chip->msi)
1066 		if (pci_enable_msi(chip->pci) < 0)
1067 			chip->msi = 0;
1068 	if (azx_acquire_irq(chip, 1) < 0)
1069 		return -EIO;
1070 
1071 	__azx_runtime_resume(chip);
1072 
1073 	trace_azx_resume(chip);
1074 	return 0;
1075 }
1076 
1077 /* put codec down to D3 at hibernation for Intel SKL+;
1078  * otherwise BIOS may still access the codec and screw up the driver
1079  */
1080 static int azx_freeze_noirq(struct device *dev)
1081 {
1082 	struct snd_card *card = dev_get_drvdata(dev);
1083 	struct azx *chip = card->private_data;
1084 	struct pci_dev *pci = to_pci_dev(dev);
1085 
1086 	if (!azx_is_pm_ready(card))
1087 		return 0;
1088 	if (chip->driver_type == AZX_DRIVER_SKL)
1089 		pci_set_power_state(pci, PCI_D3hot);
1090 
1091 	return 0;
1092 }
1093 
1094 static int azx_thaw_noirq(struct device *dev)
1095 {
1096 	struct snd_card *card = dev_get_drvdata(dev);
1097 	struct azx *chip = card->private_data;
1098 	struct pci_dev *pci = to_pci_dev(dev);
1099 
1100 	if (!azx_is_pm_ready(card))
1101 		return 0;
1102 	if (chip->driver_type == AZX_DRIVER_SKL)
1103 		pci_set_power_state(pci, PCI_D0);
1104 
1105 	return 0;
1106 }
1107 
1108 static int __maybe_unused azx_runtime_suspend(struct device *dev)
1109 {
1110 	struct snd_card *card = dev_get_drvdata(dev);
1111 	struct azx *chip;
1112 
1113 	if (!azx_is_pm_ready(card))
1114 		return 0;
1115 	chip = card->private_data;
1116 
1117 	/* enable controller wake up event */
1118 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1119 
1120 	azx_shutdown_chip(chip);
1121 	trace_azx_runtime_suspend(chip);
1122 	return 0;
1123 }
1124 
1125 static int __maybe_unused azx_runtime_resume(struct device *dev)
1126 {
1127 	struct snd_card *card = dev_get_drvdata(dev);
1128 	struct azx *chip;
1129 
1130 	if (!azx_is_pm_ready(card))
1131 		return 0;
1132 	chip = card->private_data;
1133 	__azx_runtime_resume(chip);
1134 
1135 	/* disable controller Wake Up event*/
1136 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1137 
1138 	trace_azx_runtime_resume(chip);
1139 	return 0;
1140 }
1141 
1142 static int __maybe_unused azx_runtime_idle(struct device *dev)
1143 {
1144 	struct snd_card *card = dev_get_drvdata(dev);
1145 	struct azx *chip;
1146 	struct hda_intel *hda;
1147 
1148 	if (!card)
1149 		return 0;
1150 
1151 	chip = card->private_data;
1152 	hda = container_of(chip, struct hda_intel, chip);
1153 	if (chip->disabled || hda->init_failed)
1154 		return 0;
1155 
1156 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1157 	    azx_bus(chip)->codec_powered || !chip->running)
1158 		return -EBUSY;
1159 
1160 	/* ELD notification gets broken when HD-audio bus is off */
1161 	if (needs_eld_notify_link(chip))
1162 		return -EBUSY;
1163 
1164 	return 0;
1165 }
1166 
1167 static const struct dev_pm_ops azx_pm = {
1168 	SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1169 	.prepare = pm_sleep_ptr(azx_prepare),
1170 	.complete = pm_sleep_ptr(azx_complete),
1171 	.freeze_noirq = pm_sleep_ptr(azx_freeze_noirq),
1172 	.thaw_noirq = pm_sleep_ptr(azx_thaw_noirq),
1173 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1174 };
1175 
1176 
1177 static int azx_probe_continue(struct azx *chip);
1178 
1179 #ifdef SUPPORT_VGA_SWITCHEROO
1180 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1181 
1182 static void azx_vs_set_state(struct pci_dev *pci,
1183 			     enum vga_switcheroo_state state)
1184 {
1185 	struct snd_card *card = pci_get_drvdata(pci);
1186 	struct azx *chip = card->private_data;
1187 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1188 	struct hda_codec *codec;
1189 	bool disabled;
1190 
1191 	wait_for_completion(&hda->probe_wait);
1192 	if (hda->init_failed)
1193 		return;
1194 
1195 	disabled = (state == VGA_SWITCHEROO_OFF);
1196 	if (chip->disabled == disabled)
1197 		return;
1198 
1199 	if (!hda->probe_continued) {
1200 		chip->disabled = disabled;
1201 		if (!disabled) {
1202 			dev_info(chip->card->dev,
1203 				 "Start delayed initialization\n");
1204 			if (azx_probe_continue(chip) < 0)
1205 				dev_err(chip->card->dev, "initialization error\n");
1206 		}
1207 	} else {
1208 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1209 			 disabled ? "Disabling" : "Enabling");
1210 		if (disabled) {
1211 			list_for_each_codec(codec, &chip->bus) {
1212 				pm_runtime_suspend(hda_codec_dev(codec));
1213 				pm_runtime_disable(hda_codec_dev(codec));
1214 			}
1215 			pm_runtime_suspend(card->dev);
1216 			pm_runtime_disable(card->dev);
1217 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1218 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1219 			 * put ourselves there */
1220 			pci->current_state = PCI_D3cold;
1221 			chip->disabled = true;
1222 			if (snd_hda_lock_devices(&chip->bus))
1223 				dev_warn(chip->card->dev,
1224 					 "Cannot lock devices!\n");
1225 		} else {
1226 			snd_hda_unlock_devices(&chip->bus);
1227 			chip->disabled = false;
1228 			pm_runtime_enable(card->dev);
1229 			list_for_each_codec(codec, &chip->bus) {
1230 				pm_runtime_enable(hda_codec_dev(codec));
1231 				pm_runtime_resume(hda_codec_dev(codec));
1232 			}
1233 		}
1234 	}
1235 }
1236 
1237 static bool azx_vs_can_switch(struct pci_dev *pci)
1238 {
1239 	struct snd_card *card = pci_get_drvdata(pci);
1240 	struct azx *chip = card->private_data;
1241 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1242 
1243 	wait_for_completion(&hda->probe_wait);
1244 	if (hda->init_failed)
1245 		return false;
1246 	if (chip->disabled || !hda->probe_continued)
1247 		return true;
1248 	if (snd_hda_lock_devices(&chip->bus))
1249 		return false;
1250 	snd_hda_unlock_devices(&chip->bus);
1251 	return true;
1252 }
1253 
1254 /*
1255  * The discrete GPU cannot power down unless the HDA controller runtime
1256  * suspends, so activate runtime PM on codecs even if power_save == 0.
1257  */
1258 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1259 {
1260 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1261 	struct hda_codec *codec;
1262 
1263 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1264 		list_for_each_codec(codec, &chip->bus)
1265 			codec->auto_runtime_pm = 1;
1266 		/* reset the power save setup */
1267 		if (chip->running)
1268 			set_default_power_save(chip);
1269 	}
1270 }
1271 
1272 static void azx_vs_gpu_bound(struct pci_dev *pci,
1273 			     enum vga_switcheroo_client_id client_id)
1274 {
1275 	struct snd_card *card = pci_get_drvdata(pci);
1276 	struct azx *chip = card->private_data;
1277 
1278 	if (client_id == VGA_SWITCHEROO_DIS)
1279 		chip->bus.keep_power = 0;
1280 	setup_vga_switcheroo_runtime_pm(chip);
1281 }
1282 
1283 static void init_vga_switcheroo(struct azx *chip)
1284 {
1285 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1286 	struct pci_dev *p = get_bound_vga(chip->pci);
1287 	struct pci_dev *parent;
1288 	if (p) {
1289 		dev_info(chip->card->dev,
1290 			 "Handle vga_switcheroo audio client\n");
1291 		hda->use_vga_switcheroo = 1;
1292 
1293 		/* cleared in either gpu_bound op or codec probe, or when its
1294 		 * upstream port has _PR3 (i.e. dGPU).
1295 		 */
1296 		parent = pci_upstream_bridge(p);
1297 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1298 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1299 		pci_dev_put(p);
1300 	}
1301 }
1302 
1303 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1304 	.set_gpu_state = azx_vs_set_state,
1305 	.can_switch = azx_vs_can_switch,
1306 	.gpu_bound = azx_vs_gpu_bound,
1307 };
1308 
1309 static int register_vga_switcheroo(struct azx *chip)
1310 {
1311 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1312 	struct pci_dev *p;
1313 	int err;
1314 
1315 	if (!hda->use_vga_switcheroo)
1316 		return 0;
1317 
1318 	p = get_bound_vga(chip->pci);
1319 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1320 	pci_dev_put(p);
1321 
1322 	if (err < 0)
1323 		return err;
1324 	hda->vga_switcheroo_registered = 1;
1325 
1326 	return 0;
1327 }
1328 #else
1329 #define init_vga_switcheroo(chip)		/* NOP */
1330 #define register_vga_switcheroo(chip)		0
1331 #define check_hdmi_disabled(pci)	false
1332 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1333 #endif /* SUPPORT_VGA_SWITCHER */
1334 
1335 /*
1336  * destructor
1337  */
1338 static void azx_free(struct azx *chip)
1339 {
1340 	struct pci_dev *pci = chip->pci;
1341 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1342 	struct hdac_bus *bus = azx_bus(chip);
1343 
1344 	if (hda->freed)
1345 		return;
1346 
1347 	if (azx_has_pm_runtime(chip) && chip->running) {
1348 		pm_runtime_get_noresume(&pci->dev);
1349 		pm_runtime_forbid(&pci->dev);
1350 		pm_runtime_dont_use_autosuspend(&pci->dev);
1351 	}
1352 
1353 	chip->running = 0;
1354 
1355 	azx_del_card_list(chip);
1356 
1357 	hda->init_failed = 1; /* to be sure */
1358 	complete_all(&hda->probe_wait);
1359 
1360 	if (use_vga_switcheroo(hda)) {
1361 		if (chip->disabled && hda->probe_continued)
1362 			snd_hda_unlock_devices(&chip->bus);
1363 		if (hda->vga_switcheroo_registered)
1364 			vga_switcheroo_unregister_client(chip->pci);
1365 	}
1366 
1367 	if (bus->chip_init) {
1368 		azx_clear_irq_pending(chip);
1369 		azx_stop_all_streams(chip);
1370 		azx_stop_chip(chip);
1371 	}
1372 
1373 	if (bus->irq >= 0)
1374 		free_irq(bus->irq, (void*)chip);
1375 
1376 	azx_free_stream_pages(chip);
1377 	azx_free_streams(chip);
1378 	snd_hdac_bus_exit(bus);
1379 
1380 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1381 	release_firmware(chip->fw);
1382 #endif
1383 	display_power(chip, false);
1384 
1385 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1386 		snd_hdac_i915_exit(bus);
1387 
1388 	hda->freed = 1;
1389 }
1390 
1391 static int azx_dev_disconnect(struct snd_device *device)
1392 {
1393 	struct azx *chip = device->device_data;
1394 	struct hdac_bus *bus = azx_bus(chip);
1395 
1396 	chip->bus.shutdown = 1;
1397 	cancel_work_sync(&bus->unsol_work);
1398 
1399 	return 0;
1400 }
1401 
1402 static int azx_dev_free(struct snd_device *device)
1403 {
1404 	azx_free(device->device_data);
1405 	return 0;
1406 }
1407 
1408 #ifdef SUPPORT_VGA_SWITCHEROO
1409 #ifdef CONFIG_ACPI
1410 /* ATPX is in the integrated GPU's namespace */
1411 static bool atpx_present(void)
1412 {
1413 	struct pci_dev *pdev = NULL;
1414 	acpi_handle dhandle, atpx_handle;
1415 	acpi_status status;
1416 
1417 	while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
1418 		if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) &&
1419 		    (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8))
1420 			continue;
1421 
1422 		dhandle = ACPI_HANDLE(&pdev->dev);
1423 		if (dhandle) {
1424 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1425 			if (ACPI_SUCCESS(status)) {
1426 				pci_dev_put(pdev);
1427 				return true;
1428 			}
1429 		}
1430 	}
1431 	return false;
1432 }
1433 #else
1434 static bool atpx_present(void)
1435 {
1436 	return false;
1437 }
1438 #endif
1439 
1440 /*
1441  * Check of disabled HDMI controller by vga_switcheroo
1442  */
1443 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1444 {
1445 	struct pci_dev *p;
1446 
1447 	/* check only discrete GPU */
1448 	switch (pci->vendor) {
1449 	case PCI_VENDOR_ID_ATI:
1450 	case PCI_VENDOR_ID_AMD:
1451 		if (pci->devfn == 1) {
1452 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1453 							pci->bus->number, 0);
1454 			if (p) {
1455 				/* ATPX is in the integrated GPU's ACPI namespace
1456 				 * rather than the dGPU's namespace. However,
1457 				 * the dGPU is the one who is involved in
1458 				 * vgaswitcheroo.
1459 				 */
1460 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1461 				    (atpx_present() || apple_gmux_detect(NULL, NULL)))
1462 					return p;
1463 				pci_dev_put(p);
1464 			}
1465 		}
1466 		break;
1467 	case PCI_VENDOR_ID_NVIDIA:
1468 		if (pci->devfn == 1) {
1469 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1470 							pci->bus->number, 0);
1471 			if (p) {
1472 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1473 					return p;
1474 				pci_dev_put(p);
1475 			}
1476 		}
1477 		break;
1478 	}
1479 	return NULL;
1480 }
1481 
1482 static bool check_hdmi_disabled(struct pci_dev *pci)
1483 {
1484 	bool vga_inactive = false;
1485 	struct pci_dev *p = get_bound_vga(pci);
1486 
1487 	if (p) {
1488 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1489 			vga_inactive = true;
1490 		pci_dev_put(p);
1491 	}
1492 	return vga_inactive;
1493 }
1494 #endif /* SUPPORT_VGA_SWITCHEROO */
1495 
1496 /*
1497  * allow/deny-listing for position_fix
1498  */
1499 static const struct snd_pci_quirk position_fix_list[] = {
1500 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1501 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1502 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1503 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1504 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1505 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1506 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1507 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1508 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1509 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1510 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1511 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1512 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1514 	{}
1515 };
1516 
1517 static int check_position_fix(struct azx *chip, int fix)
1518 {
1519 	const struct snd_pci_quirk *q;
1520 
1521 	switch (fix) {
1522 	case POS_FIX_AUTO:
1523 	case POS_FIX_LPIB:
1524 	case POS_FIX_POSBUF:
1525 	case POS_FIX_VIACOMBO:
1526 	case POS_FIX_COMBO:
1527 	case POS_FIX_SKL:
1528 	case POS_FIX_FIFO:
1529 		return fix;
1530 	}
1531 
1532 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1533 	if (q) {
1534 		dev_info(chip->card->dev,
1535 			 "position_fix set to %d for device %04x:%04x\n",
1536 			 q->value, q->subvendor, q->subdevice);
1537 		return q->value;
1538 	}
1539 
1540 	/* Check VIA/ATI HD Audio Controller exist */
1541 	if (chip->driver_type == AZX_DRIVER_VIA) {
1542 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1543 		return POS_FIX_VIACOMBO;
1544 	}
1545 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1546 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1547 		return POS_FIX_FIFO;
1548 	}
1549 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1550 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1551 		return POS_FIX_LPIB;
1552 	}
1553 	if (chip->driver_type == AZX_DRIVER_SKL) {
1554 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1555 		return POS_FIX_SKL;
1556 	}
1557 	return POS_FIX_AUTO;
1558 }
1559 
1560 static void assign_position_fix(struct azx *chip, int fix)
1561 {
1562 	static const azx_get_pos_callback_t callbacks[] = {
1563 		[POS_FIX_AUTO] = NULL,
1564 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1565 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1566 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1567 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1568 		[POS_FIX_SKL] = azx_get_pos_posbuf,
1569 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1570 	};
1571 
1572 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1573 
1574 	/* combo mode uses LPIB only for playback */
1575 	if (fix == POS_FIX_COMBO)
1576 		chip->get_position[1] = NULL;
1577 
1578 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1579 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1580 		chip->get_delay[0] = chip->get_delay[1] =
1581 			azx_get_delay_from_lpib;
1582 	}
1583 
1584 	if (fix == POS_FIX_FIFO)
1585 		chip->get_delay[0] = chip->get_delay[1] =
1586 			azx_get_delay_from_fifo;
1587 }
1588 
1589 /*
1590  * deny-lists for probe_mask
1591  */
1592 static const struct snd_pci_quirk probe_mask_list[] = {
1593 	/* Thinkpad often breaks the controller communication when accessing
1594 	 * to the non-working (or non-existing) modem codec slot.
1595 	 */
1596 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1597 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1598 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1599 	/* broken BIOS */
1600 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1601 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1602 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1603 	/* forced codec slots */
1604 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1605 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1606 	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1607 	/* WinFast VP200 H (Teradici) user reported broken communication */
1608 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1609 	{}
1610 };
1611 
1612 #define AZX_FORCE_CODEC_MASK	0x100
1613 
1614 static void check_probe_mask(struct azx *chip, int dev)
1615 {
1616 	const struct snd_pci_quirk *q;
1617 
1618 	chip->codec_probe_mask = probe_mask[dev];
1619 	if (chip->codec_probe_mask == -1) {
1620 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1621 		if (q) {
1622 			dev_info(chip->card->dev,
1623 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1624 				 q->value, q->subvendor, q->subdevice);
1625 			chip->codec_probe_mask = q->value;
1626 		}
1627 	}
1628 
1629 	/* check forced option */
1630 	if (chip->codec_probe_mask != -1 &&
1631 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1632 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1633 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1634 			 (int)azx_bus(chip)->codec_mask);
1635 	}
1636 }
1637 
1638 /*
1639  * allow/deny-list for enable_msi
1640  */
1641 static const struct snd_pci_quirk msi_deny_list[] = {
1642 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1643 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1644 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1645 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1646 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1647 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1648 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1649 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1650 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1651 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1652 	{}
1653 };
1654 
1655 static void check_msi(struct azx *chip)
1656 {
1657 	const struct snd_pci_quirk *q;
1658 
1659 	if (enable_msi >= 0) {
1660 		chip->msi = !!enable_msi;
1661 		return;
1662 	}
1663 	chip->msi = 1;	/* enable MSI as default */
1664 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1665 	if (q) {
1666 		dev_info(chip->card->dev,
1667 			 "msi for device %04x:%04x set to %d\n",
1668 			 q->subvendor, q->subdevice, q->value);
1669 		chip->msi = q->value;
1670 		return;
1671 	}
1672 
1673 	/* NVidia chipsets seem to cause troubles with MSI */
1674 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1675 		dev_info(chip->card->dev, "Disabling MSI\n");
1676 		chip->msi = 0;
1677 	}
1678 }
1679 
1680 /* check the snoop mode availability */
1681 static void azx_check_snoop_available(struct azx *chip)
1682 {
1683 	int snoop = hda_snoop;
1684 
1685 	if (snoop >= 0) {
1686 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1687 			 snoop ? "snoop" : "non-snoop");
1688 		chip->snoop = snoop;
1689 		chip->uc_buffer = !snoop;
1690 		return;
1691 	}
1692 
1693 	snoop = true;
1694 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1695 	    chip->driver_type == AZX_DRIVER_VIA) {
1696 		/* force to non-snoop mode for a new VIA controller
1697 		 * when BIOS is set
1698 		 */
1699 		u8 val;
1700 		pci_read_config_byte(chip->pci, 0x42, &val);
1701 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1702 				      chip->pci->revision == 0x20))
1703 			snoop = false;
1704 	}
1705 
1706 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1707 		snoop = false;
1708 
1709 	chip->snoop = snoop;
1710 	if (!snoop) {
1711 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1712 		/* C-Media requires non-cached pages only for CORB/RIRB */
1713 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1714 			chip->uc_buffer = true;
1715 	}
1716 }
1717 
1718 static void azx_probe_work(struct work_struct *work)
1719 {
1720 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1721 	azx_probe_continue(&hda->chip);
1722 }
1723 
1724 static int default_bdl_pos_adj(struct azx *chip)
1725 {
1726 	/* some exceptions: Atoms seem problematic with value 1 */
1727 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1728 		switch (chip->pci->device) {
1729 		case PCI_DEVICE_ID_INTEL_HDA_BYT:
1730 		case PCI_DEVICE_ID_INTEL_HDA_BSW:
1731 			return 32;
1732 		case PCI_DEVICE_ID_INTEL_HDA_APL:
1733 			return 64;
1734 		}
1735 	}
1736 
1737 	switch (chip->driver_type) {
1738 	/*
1739 	 * increase the bdl size for Glenfly Gpus for hardware
1740 	 * limitation on hdac interrupt interval
1741 	 */
1742 	case AZX_DRIVER_GFHDMI:
1743 		return 128;
1744 	case AZX_DRIVER_ICH:
1745 	case AZX_DRIVER_PCH:
1746 		return 1;
1747 	default:
1748 		return 32;
1749 	}
1750 }
1751 
1752 /*
1753  * constructor
1754  */
1755 static const struct hda_controller_ops pci_hda_ops;
1756 
1757 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1758 		      int dev, unsigned int driver_caps,
1759 		      struct azx **rchip)
1760 {
1761 	static const struct snd_device_ops ops = {
1762 		.dev_disconnect = azx_dev_disconnect,
1763 		.dev_free = azx_dev_free,
1764 	};
1765 	struct hda_intel *hda;
1766 	struct azx *chip;
1767 	int err;
1768 
1769 	*rchip = NULL;
1770 
1771 	err = pcim_enable_device(pci);
1772 	if (err < 0)
1773 		return err;
1774 
1775 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1776 	if (!hda)
1777 		return -ENOMEM;
1778 
1779 	chip = &hda->chip;
1780 	mutex_init(&chip->open_mutex);
1781 	chip->card = card;
1782 	chip->pci = pci;
1783 	chip->ops = &pci_hda_ops;
1784 	chip->driver_caps = driver_caps;
1785 	chip->driver_type = driver_caps & 0xff;
1786 	check_msi(chip);
1787 	chip->dev_index = dev;
1788 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1789 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1790 	INIT_LIST_HEAD(&chip->pcm_list);
1791 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1792 	INIT_LIST_HEAD(&hda->list);
1793 	init_vga_switcheroo(chip);
1794 	init_completion(&hda->probe_wait);
1795 
1796 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1797 
1798 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1799 		chip->fallback_to_single_cmd = 1;
1800 	else /* explicitly set to single_cmd or not */
1801 		chip->single_cmd = single_cmd;
1802 
1803 	azx_check_snoop_available(chip);
1804 
1805 	if (bdl_pos_adj[dev] < 0)
1806 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1807 	else
1808 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1809 
1810 	err = azx_bus_init(chip, model[dev]);
1811 	if (err < 0)
1812 		return err;
1813 
1814 	/* use the non-cached pages in non-snoop mode */
1815 	if (!azx_snoop(chip))
1816 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC;
1817 
1818 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1819 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1820 		chip->bus.core.needs_damn_long_delay = 1;
1821 	}
1822 
1823 	check_probe_mask(chip, dev);
1824 
1825 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1826 	if (err < 0) {
1827 		dev_err(card->dev, "Error creating device [card]!\n");
1828 		azx_free(chip);
1829 		return err;
1830 	}
1831 
1832 	/* continue probing in work context as may trigger request module */
1833 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1834 
1835 	*rchip = chip;
1836 
1837 	return 0;
1838 }
1839 
1840 static int azx_first_init(struct azx *chip)
1841 {
1842 	int dev = chip->dev_index;
1843 	struct pci_dev *pci = chip->pci;
1844 	struct snd_card *card = chip->card;
1845 	struct hdac_bus *bus = azx_bus(chip);
1846 	int err;
1847 	unsigned short gcap;
1848 	unsigned int dma_bits = 64;
1849 
1850 #if BITS_PER_LONG != 64
1851 	/* Fix up base address on ULI M5461 */
1852 	if (chip->driver_type == AZX_DRIVER_ULI) {
1853 		u16 tmp3;
1854 		pci_read_config_word(pci, 0x40, &tmp3);
1855 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1856 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1857 	}
1858 #endif
1859 	/*
1860 	 * Fix response write request not synced to memory when handle
1861 	 * hdac interrupt on Glenfly Gpus
1862 	 */
1863 	if (chip->driver_type == AZX_DRIVER_GFHDMI)
1864 		bus->polling_mode = 1;
1865 
1866 	if (chip->driver_type == AZX_DRIVER_LOONGSON) {
1867 		bus->polling_mode = 1;
1868 		bus->not_use_interrupts = 1;
1869 		bus->access_sdnctl_in_dword = 1;
1870 	}
1871 
1872 	err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");
1873 	if (err < 0)
1874 		return err;
1875 
1876 	bus->addr = pci_resource_start(pci, 0);
1877 	bus->remap_addr = pcim_iomap_table(pci)[0];
1878 
1879 	if (chip->driver_type == AZX_DRIVER_SKL)
1880 		snd_hdac_bus_parse_capabilities(bus);
1881 
1882 	/*
1883 	 * Some Intel CPUs has always running timer (ART) feature and
1884 	 * controller may have Global time sync reporting capability, so
1885 	 * check both of these before declaring synchronized time reporting
1886 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1887 	 */
1888 	chip->gts_present = false;
1889 
1890 #ifdef CONFIG_X86
1891 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1892 		chip->gts_present = true;
1893 #endif
1894 
1895 	if (chip->msi) {
1896 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1897 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1898 			pci->no_64bit_msi = true;
1899 		}
1900 		if (pci_enable_msi(pci) < 0)
1901 			chip->msi = 0;
1902 	}
1903 
1904 	pci_set_master(pci);
1905 
1906 	gcap = azx_readw(chip, GCAP);
1907 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1908 
1909 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1910 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1911 		dma_bits = 40;
1912 
1913 	/* disable SB600 64bit support for safety */
1914 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1915 		struct pci_dev *p_smbus;
1916 		dma_bits = 40;
1917 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1918 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1919 					 NULL);
1920 		if (p_smbus) {
1921 			if (p_smbus->revision < 0x30)
1922 				gcap &= ~AZX_GCAP_64OK;
1923 			pci_dev_put(p_smbus);
1924 		}
1925 	}
1926 
1927 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1928 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1929 		dma_bits = 40;
1930 
1931 	/* disable 64bit DMA address on some devices */
1932 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1933 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1934 		gcap &= ~AZX_GCAP_64OK;
1935 	}
1936 
1937 	/* disable buffer size rounding to 128-byte multiples if supported */
1938 	if (align_buffer_size >= 0)
1939 		chip->align_buffer_size = !!align_buffer_size;
1940 	else {
1941 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1942 			chip->align_buffer_size = 0;
1943 		else
1944 			chip->align_buffer_size = 1;
1945 	}
1946 
1947 	/* allow 64bit DMA address if supported by H/W */
1948 	if (!(gcap & AZX_GCAP_64OK))
1949 		dma_bits = 32;
1950 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1951 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1952 	dma_set_max_seg_size(&pci->dev, UINT_MAX);
1953 
1954 	/* read number of streams from GCAP register instead of using
1955 	 * hardcoded value
1956 	 */
1957 	chip->capture_streams = (gcap >> 8) & 0x0f;
1958 	chip->playback_streams = (gcap >> 12) & 0x0f;
1959 	if (!chip->playback_streams && !chip->capture_streams) {
1960 		/* gcap didn't give any info, switching to old method */
1961 
1962 		switch (chip->driver_type) {
1963 		case AZX_DRIVER_ULI:
1964 			chip->playback_streams = ULI_NUM_PLAYBACK;
1965 			chip->capture_streams = ULI_NUM_CAPTURE;
1966 			break;
1967 		case AZX_DRIVER_ATIHDMI:
1968 		case AZX_DRIVER_ATIHDMI_NS:
1969 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1970 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1971 			break;
1972 		case AZX_DRIVER_GFHDMI:
1973 		case AZX_DRIVER_GENERIC:
1974 		default:
1975 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1976 			chip->capture_streams = ICH6_NUM_CAPTURE;
1977 			break;
1978 		}
1979 	}
1980 	chip->capture_index_offset = 0;
1981 	chip->playback_index_offset = chip->capture_streams;
1982 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1983 
1984 	/* sanity check for the SDxCTL.STRM field overflow */
1985 	if (chip->num_streams > 15 &&
1986 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1987 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1988 			 "forcing separate stream tags", chip->num_streams);
1989 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1990 	}
1991 
1992 	/* initialize streams */
1993 	err = azx_init_streams(chip);
1994 	if (err < 0)
1995 		return err;
1996 
1997 	err = azx_alloc_stream_pages(chip);
1998 	if (err < 0)
1999 		return err;
2000 
2001 	/* initialize chip */
2002 	azx_init_pci(chip);
2003 
2004 	snd_hdac_i915_set_bclk(bus);
2005 
2006 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2007 
2008 	/* codec detection */
2009 	if (!azx_bus(chip)->codec_mask) {
2010 		dev_err(card->dev, "no codecs found!\n");
2011 		/* keep running the rest for the runtime PM */
2012 	}
2013 
2014 	if (azx_acquire_irq(chip, 0) < 0)
2015 		return -EBUSY;
2016 
2017 	strcpy(card->driver, "HDA-Intel");
2018 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2019 		sizeof(card->shortname));
2020 	snprintf(card->longname, sizeof(card->longname),
2021 		 "%s at 0x%lx irq %i",
2022 		 card->shortname, bus->addr, bus->irq);
2023 
2024 	return 0;
2025 }
2026 
2027 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2028 /* callback from request_firmware_nowait() */
2029 static void azx_firmware_cb(const struct firmware *fw, void *context)
2030 {
2031 	struct snd_card *card = context;
2032 	struct azx *chip = card->private_data;
2033 
2034 	if (fw)
2035 		chip->fw = fw;
2036 	else
2037 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2038 	if (!chip->disabled) {
2039 		/* continue probing */
2040 		azx_probe_continue(chip);
2041 	}
2042 }
2043 #endif
2044 
2045 static int disable_msi_reset_irq(struct azx *chip)
2046 {
2047 	struct hdac_bus *bus = azx_bus(chip);
2048 	int err;
2049 
2050 	free_irq(bus->irq, chip);
2051 	bus->irq = -1;
2052 	chip->card->sync_irq = -1;
2053 	pci_disable_msi(chip->pci);
2054 	chip->msi = 0;
2055 	err = azx_acquire_irq(chip, 1);
2056 	if (err < 0)
2057 		return err;
2058 
2059 	return 0;
2060 }
2061 
2062 /* Denylist for skipping the whole probe:
2063  * some HD-audio PCI entries are exposed without any codecs, and such devices
2064  * should be ignored from the beginning.
2065  */
2066 static const struct pci_device_id driver_denylist[] = {
2067 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2068 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2069 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2070 	{ PCI_DEVICE_SUB(0x1022, 0x15e3, 0x1022, 0xd601) }, /* ASRock X670E Taichi */
2071 	{}
2072 };
2073 
2074 static const struct hda_controller_ops pci_hda_ops = {
2075 	.disable_msi_reset_irq = disable_msi_reset_irq,
2076 	.position_check = azx_position_check,
2077 };
2078 
2079 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2080 
2081 static int azx_probe(struct pci_dev *pci,
2082 		     const struct pci_device_id *pci_id)
2083 {
2084 	struct snd_card *card;
2085 	struct hda_intel *hda;
2086 	struct azx *chip;
2087 	bool schedule_probe;
2088 	int dev;
2089 	int err;
2090 
2091 	if (pci_match_id(driver_denylist, pci)) {
2092 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2093 		return -ENODEV;
2094 	}
2095 
2096 	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2097 	if (dev >= SNDRV_CARDS)
2098 		return -ENODEV;
2099 	if (!enable[dev]) {
2100 		set_bit(dev, probed_devs);
2101 		return -ENOENT;
2102 	}
2103 
2104 	/*
2105 	 * stop probe if another Intel's DSP driver should be activated
2106 	 */
2107 	if (dmic_detect) {
2108 		err = snd_intel_dsp_driver_probe(pci);
2109 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2110 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2111 			return -ENODEV;
2112 		}
2113 	} else {
2114 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2115 	}
2116 
2117 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2118 			   0, &card);
2119 	if (err < 0) {
2120 		dev_err(&pci->dev, "Error creating card!\n");
2121 		return err;
2122 	}
2123 
2124 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2125 	if (err < 0)
2126 		goto out_free;
2127 	card->private_data = chip;
2128 	hda = container_of(chip, struct hda_intel, chip);
2129 
2130 	pci_set_drvdata(pci, card);
2131 
2132 #ifdef CONFIG_SND_HDA_I915
2133 	/* bind with i915 if needed */
2134 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2135 		err = snd_hdac_i915_init(azx_bus(chip));
2136 		if (err < 0) {
2137 			if (err == -EPROBE_DEFER)
2138 				goto out_free;
2139 
2140 			/* if the controller is bound only with HDMI/DP
2141 			 * (for HSW and BDW), we need to abort the probe;
2142 			 * for other chips, still continue probing as other
2143 			 * codecs can be on the same link.
2144 			 */
2145 			if (HDA_CONTROLLER_IN_GPU(pci)) {
2146 				dev_err_probe(card->dev, err,
2147 					     "HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2148 
2149 				goto out_free;
2150 			} else {
2151 				/* don't bother any longer */
2152 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2153 			}
2154 		}
2155 
2156 		/* HSW/BDW controllers need this power */
2157 		if (HDA_CONTROLLER_IN_GPU(pci))
2158 			hda->need_i915_power = true;
2159 	}
2160 #else
2161 	if (HDA_CONTROLLER_IN_GPU(pci))
2162 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2163 #endif
2164 
2165 	err = register_vga_switcheroo(chip);
2166 	if (err < 0) {
2167 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2168 		goto out_free;
2169 	}
2170 
2171 	if (check_hdmi_disabled(pci)) {
2172 		dev_info(card->dev, "VGA controller is disabled\n");
2173 		dev_info(card->dev, "Delaying initialization\n");
2174 		chip->disabled = true;
2175 	}
2176 
2177 	schedule_probe = !chip->disabled;
2178 
2179 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2180 	if (patch[dev] && *patch[dev]) {
2181 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2182 			 patch[dev]);
2183 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2184 					      &pci->dev, GFP_KERNEL, card,
2185 					      azx_firmware_cb);
2186 		if (err < 0)
2187 			goto out_free;
2188 		schedule_probe = false; /* continued in azx_firmware_cb() */
2189 	}
2190 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2191 
2192 	if (schedule_probe)
2193 		schedule_delayed_work(&hda->probe_work, 0);
2194 
2195 	set_bit(dev, probed_devs);
2196 	if (chip->disabled)
2197 		complete_all(&hda->probe_wait);
2198 	return 0;
2199 
2200 out_free:
2201 	pci_set_drvdata(pci, NULL);
2202 	snd_card_free(card);
2203 	return err;
2204 }
2205 
2206 /* On some boards setting power_save to a non 0 value leads to clicking /
2207  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2208  * figure out how to avoid these sounds, but that is not always feasible.
2209  * So we keep a list of devices where we disable powersaving as its known
2210  * to causes problems on these devices.
2211  */
2212 static const struct snd_pci_quirk power_save_denylist[] = {
2213 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2214 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2215 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2216 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2217 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2218 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2219 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2220 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2221 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2222 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2223 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2224 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2225 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2226 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2227 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2228 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2229 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2230 	/* https://bugs.launchpad.net/bugs/1821663 */
2231 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2232 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2233 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2234 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2235 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2236 	SND_PCI_QUIRK(0x17aa, 0x316e, "Lenovo ThinkCentre M70q", 0),
2237 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2238 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2239 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2240 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2241 	/* https://bugs.launchpad.net/bugs/1821663 */
2242 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2243 	/* KONTRON SinglePC may cause a stall at runtime resume */
2244 	SND_PCI_QUIRK(0x1734, 0x1232, "KONTRON SinglePC", 0),
2245 	{}
2246 };
2247 
2248 static void set_default_power_save(struct azx *chip)
2249 {
2250 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2251 	int val = power_save;
2252 
2253 	if (pm_blacklist < 0) {
2254 		const struct snd_pci_quirk *q;
2255 
2256 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2257 		if (q && val) {
2258 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2259 				 q->subvendor, q->subdevice);
2260 			val = 0;
2261 			hda->runtime_pm_disabled = 1;
2262 		}
2263 	} else if (pm_blacklist > 0) {
2264 		dev_info(chip->card->dev, "Forcing power_save to 0 via option\n");
2265 		val = 0;
2266 	}
2267 	snd_hda_set_power_save(&chip->bus, val * 1000);
2268 }
2269 
2270 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2271 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2272 	[AZX_DRIVER_NVIDIA] = 8,
2273 	[AZX_DRIVER_TERA] = 1,
2274 };
2275 
2276 static int azx_probe_continue(struct azx *chip)
2277 {
2278 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2279 	struct hdac_bus *bus = azx_bus(chip);
2280 	struct pci_dev *pci = chip->pci;
2281 	int dev = chip->dev_index;
2282 	int err;
2283 
2284 	if (chip->disabled || hda->init_failed)
2285 		return -EIO;
2286 	if (hda->probe_retry)
2287 		goto probe_retry;
2288 
2289 	to_hda_bus(bus)->bus_probing = 1;
2290 	hda->probe_continued = 1;
2291 
2292 	/* Request display power well for the HDA controller or codec. For
2293 	 * Haswell/Broadwell, both the display HDA controller and codec need
2294 	 * this power. For other platforms, like Baytrail/Braswell, only the
2295 	 * display codec needs the power and it can be released after probe.
2296 	 */
2297 	display_power(chip, true);
2298 
2299 	err = azx_first_init(chip);
2300 	if (err < 0)
2301 		goto out_free;
2302 
2303 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2304 	chip->beep_mode = beep_mode[dev];
2305 #endif
2306 
2307 	chip->ctl_dev_id = ctl_dev_id;
2308 
2309 	/* create codec instances */
2310 	if (bus->codec_mask) {
2311 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2312 		if (err < 0)
2313 			goto out_free;
2314 	}
2315 
2316 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2317 	if (chip->fw) {
2318 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2319 					 chip->fw->data);
2320 		if (err < 0)
2321 			goto out_free;
2322 	}
2323 #endif
2324 
2325  probe_retry:
2326 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2327 		err = azx_codec_configure(chip);
2328 		if (err) {
2329 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2330 			    ++hda->probe_retry < 60) {
2331 				schedule_delayed_work(&hda->probe_work,
2332 						      msecs_to_jiffies(1000));
2333 				return 0; /* keep things up */
2334 			}
2335 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2336 			goto out_free;
2337 		}
2338 	}
2339 
2340 	err = snd_card_register(chip->card);
2341 	if (err < 0)
2342 		goto out_free;
2343 
2344 	setup_vga_switcheroo_runtime_pm(chip);
2345 
2346 	chip->running = 1;
2347 	azx_add_card_list(chip);
2348 
2349 	set_default_power_save(chip);
2350 
2351 	if (azx_has_pm_runtime(chip)) {
2352 		pm_runtime_use_autosuspend(&pci->dev);
2353 		pm_runtime_allow(&pci->dev);
2354 		pm_runtime_put_autosuspend(&pci->dev);
2355 	}
2356 
2357 out_free:
2358 	if (err < 0) {
2359 		pci_set_drvdata(pci, NULL);
2360 		snd_card_free(chip->card);
2361 		return err;
2362 	}
2363 
2364 	if (!hda->need_i915_power)
2365 		display_power(chip, false);
2366 	complete_all(&hda->probe_wait);
2367 	to_hda_bus(bus)->bus_probing = 0;
2368 	hda->probe_retry = 0;
2369 	return 0;
2370 }
2371 
2372 static void azx_remove(struct pci_dev *pci)
2373 {
2374 	struct snd_card *card = pci_get_drvdata(pci);
2375 	struct azx *chip;
2376 	struct hda_intel *hda;
2377 
2378 	if (card) {
2379 		/* cancel the pending probing work */
2380 		chip = card->private_data;
2381 		hda = container_of(chip, struct hda_intel, chip);
2382 		/* FIXME: below is an ugly workaround.
2383 		 * Both device_release_driver() and driver_probe_device()
2384 		 * take *both* the device's and its parent's lock before
2385 		 * calling the remove() and probe() callbacks.  The codec
2386 		 * probe takes the locks of both the codec itself and its
2387 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2388 		 * the PCI controller is unbound, it takes its lock, too
2389 		 * ==> ouch, a deadlock!
2390 		 * As a workaround, we unlock temporarily here the controller
2391 		 * device during cancel_work_sync() call.
2392 		 */
2393 		device_unlock(&pci->dev);
2394 		cancel_delayed_work_sync(&hda->probe_work);
2395 		device_lock(&pci->dev);
2396 
2397 		clear_bit(chip->dev_index, probed_devs);
2398 		pci_set_drvdata(pci, NULL);
2399 		snd_card_free(card);
2400 	}
2401 }
2402 
2403 static void azx_shutdown(struct pci_dev *pci)
2404 {
2405 	struct snd_card *card = pci_get_drvdata(pci);
2406 	struct azx *chip;
2407 
2408 	if (!card)
2409 		return;
2410 	chip = card->private_data;
2411 	if (chip && chip->running)
2412 		__azx_shutdown_chip(chip, true);
2413 }
2414 
2415 /* PCI IDs */
2416 static const struct pci_device_id azx_ids[] = {
2417 	/* CPT */
2418 	{ PCI_DEVICE_DATA(INTEL, HDA_CPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2419 	/* PBG */
2420 	{ PCI_DEVICE_DATA(INTEL, HDA_PBG, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2421 	/* Panther Point */
2422 	{ PCI_DEVICE_DATA(INTEL, HDA_PPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2423 	/* Lynx Point */
2424 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2425 	/* 9 Series */
2426 	{ PCI_DEVICE_DATA(INTEL, HDA_9_SERIES, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2427 	/* Wellsburg */
2428 	{ PCI_DEVICE_DATA(INTEL, HDA_WBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2429 	{ PCI_DEVICE_DATA(INTEL, HDA_WBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2430 	/* Lewisburg */
2431 	{ PCI_DEVICE_DATA(INTEL, HDA_LBG_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2432 	{ PCI_DEVICE_DATA(INTEL, HDA_LBG_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE) },
2433 	/* Lynx Point-LP */
2434 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_0, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2435 	/* Lynx Point-LP */
2436 	{ PCI_DEVICE_DATA(INTEL, HDA_LPT_LP_1, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2437 	/* Wildcat Point-LP */
2438 	{ PCI_DEVICE_DATA(INTEL, HDA_WPT_LP, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH) },
2439 	/* Skylake (Sunrise Point) */
2440 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2441 	/* Skylake-LP (Sunrise Point-LP) */
2442 	{ PCI_DEVICE_DATA(INTEL, HDA_SKL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2443 	/* Kabylake */
2444 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2445 	/* Kabylake-LP */
2446 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2447 	/* Kabylake-H */
2448 	{ PCI_DEVICE_DATA(INTEL, HDA_KBL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2449 	/* Coffelake */
2450 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2451 	/* Cannonlake */
2452 	{ PCI_DEVICE_DATA(INTEL, HDA_CNL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2453 	/* CometLake-LP */
2454 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2455 	/* CometLake-H */
2456 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2457 	{ PCI_DEVICE_DATA(INTEL, HDA_RKL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2458 	/* CometLake-S */
2459 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2460 	/* CometLake-R */
2461 	{ PCI_DEVICE_DATA(INTEL, HDA_CML_R, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2462 	/* Icelake */
2463 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2464 	/* Icelake-H */
2465 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2466 	/* Jasperlake */
2467 	{ PCI_DEVICE_DATA(INTEL, HDA_ICL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2468 	{ PCI_DEVICE_DATA(INTEL, HDA_JSL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2469 	/* Tigerlake */
2470 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_LP, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2471 	/* Tigerlake-H */
2472 	{ PCI_DEVICE_DATA(INTEL, HDA_TGL_H, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2473 	/* DG1 */
2474 	{ PCI_DEVICE_DATA(INTEL, HDA_DG1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2475 	/* DG2 */
2476 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2477 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2478 	{ PCI_DEVICE_DATA(INTEL, HDA_DG2_2, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2479 	/* Alderlake-S */
2480 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2481 	/* Alderlake-P */
2482 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2483 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PS, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2484 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2485 	/* Alderlake-M */
2486 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2487 	/* Alderlake-N */
2488 	{ PCI_DEVICE_DATA(INTEL, HDA_ADL_N, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2489 	/* Elkhart Lake */
2490 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2491 	{ PCI_DEVICE_DATA(INTEL, HDA_EHL_3, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2492 	/* Raptor Lake */
2493 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2494 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_0, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2495 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_P_1, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2496 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_M, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2497 	{ PCI_DEVICE_DATA(INTEL, HDA_RPL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2498 	{ PCI_DEVICE_DATA(INTEL, HDA_MTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2499 	/* Battlemage */
2500 	{ PCI_DEVICE_DATA(INTEL, HDA_BMG, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2501 	/* Lunarlake-P */
2502 	{ PCI_DEVICE_DATA(INTEL, HDA_LNL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2503 	/* Arrow Lake-S */
2504 	{ PCI_DEVICE_DATA(INTEL, HDA_ARL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2505 	/* Arrow Lake */
2506 	{ PCI_DEVICE_DATA(INTEL, HDA_ARL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) },
2507 	/* Panther Lake */
2508 	{ PCI_DEVICE_DATA(INTEL, HDA_PTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) },
2509 	/* Apollolake (Broxton-P) */
2510 	{ PCI_DEVICE_DATA(INTEL, HDA_APL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2511 	/* Gemini-Lake */
2512 	{ PCI_DEVICE_DATA(INTEL, HDA_GML, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON) },
2513 	/* Haswell */
2514 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_0, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2515 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_2, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2516 	{ PCI_DEVICE_DATA(INTEL, HDA_HSW_3, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL) },
2517 	/* Broadwell */
2518 	{ PCI_DEVICE_DATA(INTEL, HDA_BDW, AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL) },
2519 	/* 5 Series/3400 */
2520 	{ PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_0, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2521 	{ PCI_DEVICE_DATA(INTEL, HDA_5_3400_SERIES_1, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM) },
2522 	/* Poulsbo */
2523 	{ PCI_DEVICE_DATA(INTEL, HDA_POULSBO, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
2524 	  AZX_DCAPS_POSFIX_LPIB) },
2525 	/* Oaktrail */
2526 	{ PCI_DEVICE_DATA(INTEL, HDA_OAKTRAIL, AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE) },
2527 	/* BayTrail */
2528 	{ PCI_DEVICE_DATA(INTEL, HDA_BYT, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL) },
2529 	/* Braswell */
2530 	{ PCI_DEVICE_DATA(INTEL, HDA_BSW, AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL) },
2531 	/* ICH6 */
2532 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH6, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2533 	/* ICH7 */
2534 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH7, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2535 	/* ESB2 */
2536 	{ PCI_DEVICE_DATA(INTEL, HDA_ESB2, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2537 	/* ICH8 */
2538 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH8, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2539 	/* ICH9 */
2540 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH9_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2541 	/* ICH9 */
2542 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH9_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2543 	/* ICH10 */
2544 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH10_0, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2545 	/* ICH10 */
2546 	{ PCI_DEVICE_DATA(INTEL, HDA_ICH10_1, AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH) },
2547 	/* Generic Intel */
2548 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2549 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2550 	  .class_mask = 0xffffff,
2551 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2552 	/* ATI SB 450/600/700/800/900 */
2553 	{ PCI_VDEVICE(ATI, 0x437b),
2554 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2555 	{ PCI_VDEVICE(ATI, 0x4383),
2556 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2557 	/* AMD Hudson */
2558 	{ PCI_VDEVICE(AMD, 0x780d),
2559 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2560 	/* AMD, X370 & co */
2561 	{ PCI_VDEVICE(AMD, 0x1457),
2562 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2563 	/* AMD, X570 & co */
2564 	{ PCI_VDEVICE(AMD, 0x1487),
2565 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2566 	/* AMD Stoney */
2567 	{ PCI_VDEVICE(AMD, 0x157a),
2568 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2569 			 AZX_DCAPS_PM_RUNTIME },
2570 	/* AMD Raven */
2571 	{ PCI_VDEVICE(AMD, 0x15e3),
2572 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2573 	/* ATI HDMI */
2574 	{ PCI_VDEVICE(ATI, 0x0002),
2575 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2576 	  AZX_DCAPS_PM_RUNTIME },
2577 	{ PCI_VDEVICE(ATI, 0x1308),
2578 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2579 	{ PCI_VDEVICE(ATI, 0x157a),
2580 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2581 	{ PCI_VDEVICE(ATI, 0x15b3),
2582 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2583 	{ PCI_VDEVICE(ATI, 0x793b),
2584 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2585 	{ PCI_VDEVICE(ATI, 0x7919),
2586 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2587 	{ PCI_VDEVICE(ATI, 0x960f),
2588 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2589 	{ PCI_VDEVICE(ATI, 0x970f),
2590 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2591 	{ PCI_VDEVICE(ATI, 0x9840),
2592 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2593 	{ PCI_VDEVICE(ATI, 0xaa00),
2594 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2595 	{ PCI_VDEVICE(ATI, 0xaa08),
2596 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2597 	{ PCI_VDEVICE(ATI, 0xaa10),
2598 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2599 	{ PCI_VDEVICE(ATI, 0xaa18),
2600 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2601 	{ PCI_VDEVICE(ATI, 0xaa20),
2602 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2603 	{ PCI_VDEVICE(ATI, 0xaa28),
2604 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2605 	{ PCI_VDEVICE(ATI, 0xaa30),
2606 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2607 	{ PCI_VDEVICE(ATI, 0xaa38),
2608 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2609 	{ PCI_VDEVICE(ATI, 0xaa40),
2610 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2611 	{ PCI_VDEVICE(ATI, 0xaa48),
2612 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2613 	{ PCI_VDEVICE(ATI, 0xaa50),
2614 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2615 	{ PCI_VDEVICE(ATI, 0xaa58),
2616 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2617 	{ PCI_VDEVICE(ATI, 0xaa60),
2618 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2619 	{ PCI_VDEVICE(ATI, 0xaa68),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2621 	{ PCI_VDEVICE(ATI, 0xaa80),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2623 	{ PCI_VDEVICE(ATI, 0xaa88),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2625 	{ PCI_VDEVICE(ATI, 0xaa90),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2627 	{ PCI_VDEVICE(ATI, 0xaa98),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2629 	{ PCI_VDEVICE(ATI, 0x9902),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2631 	{ PCI_VDEVICE(ATI, 0xaaa0),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2633 	{ PCI_VDEVICE(ATI, 0xaaa8),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2635 	{ PCI_VDEVICE(ATI, 0xaab0),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2637 	{ PCI_VDEVICE(ATI, 0xaac0),
2638 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2639 	  AZX_DCAPS_PM_RUNTIME },
2640 	{ PCI_VDEVICE(ATI, 0xaac8),
2641 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2642 	  AZX_DCAPS_PM_RUNTIME },
2643 	{ PCI_VDEVICE(ATI, 0xaad8),
2644 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2645 	  AZX_DCAPS_PM_RUNTIME },
2646 	{ PCI_VDEVICE(ATI, 0xaae0),
2647 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2648 	  AZX_DCAPS_PM_RUNTIME },
2649 	{ PCI_VDEVICE(ATI, 0xaae8),
2650 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2651 	  AZX_DCAPS_PM_RUNTIME },
2652 	{ PCI_VDEVICE(ATI, 0xaaf0),
2653 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2654 	  AZX_DCAPS_PM_RUNTIME },
2655 	{ PCI_VDEVICE(ATI, 0xaaf8),
2656 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2657 	  AZX_DCAPS_PM_RUNTIME },
2658 	{ PCI_VDEVICE(ATI, 0xab00),
2659 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2660 	  AZX_DCAPS_PM_RUNTIME },
2661 	{ PCI_VDEVICE(ATI, 0xab08),
2662 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2663 	  AZX_DCAPS_PM_RUNTIME },
2664 	{ PCI_VDEVICE(ATI, 0xab10),
2665 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2666 	  AZX_DCAPS_PM_RUNTIME },
2667 	{ PCI_VDEVICE(ATI, 0xab18),
2668 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2669 	  AZX_DCAPS_PM_RUNTIME },
2670 	{ PCI_VDEVICE(ATI, 0xab20),
2671 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2672 	  AZX_DCAPS_PM_RUNTIME },
2673 	{ PCI_VDEVICE(ATI, 0xab28),
2674 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2675 	  AZX_DCAPS_PM_RUNTIME },
2676 	{ PCI_VDEVICE(ATI, 0xab30),
2677 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2678 	  AZX_DCAPS_PM_RUNTIME },
2679 	{ PCI_VDEVICE(ATI, 0xab38),
2680 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2681 	  AZX_DCAPS_PM_RUNTIME },
2682 	/* GLENFLY */
2683 	{ PCI_DEVICE(PCI_VENDOR_ID_GLENFLY, PCI_ANY_ID),
2684 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2685 	  .class_mask = 0xffffff,
2686 	  .driver_data = AZX_DRIVER_GFHDMI | AZX_DCAPS_POSFIX_LPIB |
2687 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_NO_64BIT },
2688 	/* VIA VT8251/VT8237A */
2689 	{ PCI_VDEVICE(VIA, 0x3288), .driver_data = AZX_DRIVER_VIA },
2690 	/* VIA GFX VT7122/VX900 */
2691 	{ PCI_VDEVICE(VIA, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2692 	/* VIA GFX VT6122/VX11 */
2693 	{ PCI_VDEVICE(VIA, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2694 	/* SIS966 */
2695 	{ PCI_VDEVICE(SI, 0x7502), .driver_data = AZX_DRIVER_SIS },
2696 	/* ULI M5461 */
2697 	{ PCI_VDEVICE(AL, 0x5461), .driver_data = AZX_DRIVER_ULI },
2698 	/* NVIDIA MCP */
2699 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2700 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2701 	  .class_mask = 0xffffff,
2702 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2703 	/* Teradici */
2704 	{ PCI_DEVICE(0x6549, 0x1200),
2705 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2706 	{ PCI_DEVICE(0x6549, 0x2200),
2707 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2708 	/* Creative X-Fi (CA0110-IBG) */
2709 	/* CTHDA chips */
2710 	{ PCI_VDEVICE(CREATIVE, 0x0010),
2711 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2712 	{ PCI_VDEVICE(CREATIVE, 0x0012),
2713 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2714 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2715 	/* the following entry conflicts with snd-ctxfi driver,
2716 	 * as ctxfi driver mutates from HD-audio to native mode with
2717 	 * a special command sequence.
2718 	 */
2719 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2720 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2721 	  .class_mask = 0xffffff,
2722 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2723 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2724 #else
2725 	/* this entry seems still valid -- i.e. without emu20kx chip */
2726 	{ PCI_VDEVICE(CREATIVE, 0x0009),
2727 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2728 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2729 #endif
2730 	/* CM8888 */
2731 	{ PCI_VDEVICE(CMEDIA, 0x5011),
2732 	  .driver_data = AZX_DRIVER_CMEDIA |
2733 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2734 	/* Vortex86MX */
2735 	{ PCI_VDEVICE(RDC, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2736 	/* VMware HDAudio */
2737 	{ PCI_VDEVICE(VMWARE, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2738 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2739 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2740 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2741 	  .class_mask = 0xffffff,
2742 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2743 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2744 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2745 	  .class_mask = 0xffffff,
2746 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2747 	/* Zhaoxin */
2748 	{ PCI_VDEVICE(ZHAOXIN, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2749 	/* Loongson HDAudio*/
2750 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDA),
2751 	  .driver_data = AZX_DRIVER_LOONGSON },
2752 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDMI),
2753 	  .driver_data = AZX_DRIVER_LOONGSON },
2754 	{ 0, }
2755 };
2756 MODULE_DEVICE_TABLE(pci, azx_ids);
2757 
2758 /* pci_driver definition */
2759 static struct pci_driver azx_driver = {
2760 	.name = KBUILD_MODNAME,
2761 	.id_table = azx_ids,
2762 	.probe = azx_probe,
2763 	.remove = azx_remove,
2764 	.shutdown = azx_shutdown,
2765 	.driver = {
2766 		.pm = &azx_pm,
2767 	},
2768 };
2769 
2770 module_pci_driver(azx_driver);
2771