xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision d9f6e12f)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *
4  *  hda_intel.c - Implementation of primary alsa driver code base
5  *                for Intel HD Audio.
6  *
7  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
8  *
9  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
10  *                     PeiSen Hou <pshou@realtek.com.tw>
11  *
12  *  CONTACTS:
13  *
14  *  Matt Jared		matt.jared@intel.com
15  *  Andy Kopp		andy.kopp@intel.com
16  *  Dan Kogan		dan.d.kogan@intel.com
17  *
18  *  CHANGES:
19  *
20  *  2004.12.01	Major rewrite by tiwai, merged the work of pshou
21  */
22 
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/moduleparam.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/pci.h>
32 #include <linux/mutex.h>
33 #include <linux/io.h>
34 #include <linux/pm_runtime.h>
35 #include <linux/clocksource.h>
36 #include <linux/time.h>
37 #include <linux/completion.h>
38 #include <linux/acpi.h>
39 #include <linux/pgtable.h>
40 
41 #ifdef CONFIG_X86
42 /* for snoop control */
43 #include <asm/set_memory.h>
44 #include <asm/cpufeature.h>
45 #endif
46 #include <sound/core.h>
47 #include <sound/initval.h>
48 #include <sound/hdaudio.h>
49 #include <sound/hda_i915.h>
50 #include <sound/intel-dsp-config.h>
51 #include <linux/vgaarb.h>
52 #include <linux/vga_switcheroo.h>
53 #include <linux/firmware.h>
54 #include <sound/hda_codec.h>
55 #include "hda_controller.h"
56 #include "hda_intel.h"
57 
58 #define CREATE_TRACE_POINTS
59 #include "hda_intel_trace.h"
60 
61 /* position fix mode */
62 enum {
63 	POS_FIX_AUTO,
64 	POS_FIX_LPIB,
65 	POS_FIX_POSBUF,
66 	POS_FIX_VIACOMBO,
67 	POS_FIX_COMBO,
68 	POS_FIX_SKL,
69 	POS_FIX_FIFO,
70 };
71 
72 /* Defines for ATI HD Audio support in SB450 south bridge */
73 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
74 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
75 
76 /* Defines for Nvidia HDA support */
77 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
78 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
79 #define NVIDIA_HDA_ISTRM_COH          0x4d
80 #define NVIDIA_HDA_OSTRM_COH          0x4c
81 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
82 
83 /* Defines for Intel SCH HDA snoop control */
84 #define INTEL_HDA_CGCTL	 0x48
85 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
86 #define INTEL_SCH_HDA_DEVC      0x78
87 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
88 
89 /* Define VIA HD Audio Device ID*/
90 #define VIA_HDAC_DEVICE_ID		0x3288
91 
92 /* max number of SDs */
93 /* ICH, ATI and VIA have 4 playback and 4 capture */
94 #define ICH6_NUM_CAPTURE	4
95 #define ICH6_NUM_PLAYBACK	4
96 
97 /* ULI has 6 playback and 5 capture */
98 #define ULI_NUM_CAPTURE		5
99 #define ULI_NUM_PLAYBACK	6
100 
101 /* ATI HDMI may have up to 8 playbacks and 0 capture */
102 #define ATIHDMI_NUM_CAPTURE	0
103 #define ATIHDMI_NUM_PLAYBACK	8
104 
105 /* TERA has 4 playback and 3 capture */
106 #define TERA_NUM_CAPTURE	3
107 #define TERA_NUM_PLAYBACK	4
108 
109 
110 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
111 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
112 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
113 static char *model[SNDRV_CARDS];
114 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
115 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
116 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
117 static int probe_only[SNDRV_CARDS];
118 static int jackpoll_ms[SNDRV_CARDS];
119 static int single_cmd = -1;
120 static int enable_msi = -1;
121 #ifdef CONFIG_SND_HDA_PATCH_LOADER
122 static char *patch[SNDRV_CARDS];
123 #endif
124 #ifdef CONFIG_SND_HDA_INPUT_BEEP
125 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
126 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
127 #endif
128 static bool dmic_detect = 1;
129 
130 module_param_array(index, int, NULL, 0444);
131 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
132 module_param_array(id, charp, NULL, 0444);
133 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
134 module_param_array(enable, bool, NULL, 0444);
135 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
136 module_param_array(model, charp, NULL, 0444);
137 MODULE_PARM_DESC(model, "Use the given board model.");
138 module_param_array(position_fix, int, NULL, 0444);
139 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
140 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
141 module_param_array(bdl_pos_adj, int, NULL, 0644);
142 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
143 module_param_array(probe_mask, int, NULL, 0444);
144 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
145 module_param_array(probe_only, int, NULL, 0444);
146 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
147 module_param_array(jackpoll_ms, int, NULL, 0444);
148 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
149 module_param(single_cmd, bint, 0444);
150 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
151 		 "(for debugging only).");
152 module_param(enable_msi, bint, 0444);
153 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
154 #ifdef CONFIG_SND_HDA_PATCH_LOADER
155 module_param_array(patch, charp, NULL, 0444);
156 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
157 #endif
158 #ifdef CONFIG_SND_HDA_INPUT_BEEP
159 module_param_array(beep_mode, bool, NULL, 0444);
160 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
161 			    "(0=off, 1=on) (default=1).");
162 #endif
163 module_param(dmic_detect, bool, 0444);
164 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
165 			     "(0=off, 1=on) (default=1); "
166 		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
167 
168 #ifdef CONFIG_PM
169 static int param_set_xint(const char *val, const struct kernel_param *kp);
170 static const struct kernel_param_ops param_ops_xint = {
171 	.set = param_set_xint,
172 	.get = param_get_int,
173 };
174 #define param_check_xint param_check_int
175 
176 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
177 module_param(power_save, xint, 0644);
178 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
179 		 "(in second, 0 = disable).");
180 
181 static bool pm_blacklist = true;
182 module_param(pm_blacklist, bool, 0644);
183 MODULE_PARM_DESC(pm_blacklist, "Enable power-management denylist");
184 
185 /* reset the HD-audio controller in power save mode.
186  * this may give more power-saving, but will take longer time to
187  * wake up.
188  */
189 static bool power_save_controller = 1;
190 module_param(power_save_controller, bool, 0644);
191 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
192 #else
193 #define power_save	0
194 #endif /* CONFIG_PM */
195 
196 static int align_buffer_size = -1;
197 module_param(align_buffer_size, bint, 0644);
198 MODULE_PARM_DESC(align_buffer_size,
199 		"Force buffer and period sizes to be multiple of 128 bytes.");
200 
201 #ifdef CONFIG_X86
202 static int hda_snoop = -1;
203 module_param_named(snoop, hda_snoop, bint, 0444);
204 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
205 #else
206 #define hda_snoop		true
207 #endif
208 
209 
210 MODULE_LICENSE("GPL");
211 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
212 			 "{Intel, ICH6M},"
213 			 "{Intel, ICH7},"
214 			 "{Intel, ESB2},"
215 			 "{Intel, ICH8},"
216 			 "{Intel, ICH9},"
217 			 "{Intel, ICH10},"
218 			 "{Intel, PCH},"
219 			 "{Intel, CPT},"
220 			 "{Intel, PPT},"
221 			 "{Intel, LPT},"
222 			 "{Intel, LPT_LP},"
223 			 "{Intel, WPT_LP},"
224 			 "{Intel, SPT},"
225 			 "{Intel, SPT_LP},"
226 			 "{Intel, HPT},"
227 			 "{Intel, PBG},"
228 			 "{Intel, SCH},"
229 			 "{ATI, SB450},"
230 			 "{ATI, SB600},"
231 			 "{ATI, RS600},"
232 			 "{ATI, RS690},"
233 			 "{ATI, RS780},"
234 			 "{ATI, R600},"
235 			 "{ATI, RV630},"
236 			 "{ATI, RV610},"
237 			 "{ATI, RV670},"
238 			 "{ATI, RV635},"
239 			 "{ATI, RV620},"
240 			 "{ATI, RV770},"
241 			 "{VIA, VT8251},"
242 			 "{VIA, VT8237A},"
243 			 "{SiS, SIS966},"
244 			 "{ULI, M5461}}");
245 MODULE_DESCRIPTION("Intel HDA driver");
246 
247 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
248 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
249 #define SUPPORT_VGA_SWITCHEROO
250 #endif
251 #endif
252 
253 
254 /*
255  */
256 
257 /* driver types */
258 enum {
259 	AZX_DRIVER_ICH,
260 	AZX_DRIVER_PCH,
261 	AZX_DRIVER_SCH,
262 	AZX_DRIVER_SKL,
263 	AZX_DRIVER_HDMI,
264 	AZX_DRIVER_ATI,
265 	AZX_DRIVER_ATIHDMI,
266 	AZX_DRIVER_ATIHDMI_NS,
267 	AZX_DRIVER_VIA,
268 	AZX_DRIVER_SIS,
269 	AZX_DRIVER_ULI,
270 	AZX_DRIVER_NVIDIA,
271 	AZX_DRIVER_TERA,
272 	AZX_DRIVER_CTX,
273 	AZX_DRIVER_CTHDA,
274 	AZX_DRIVER_CMEDIA,
275 	AZX_DRIVER_ZHAOXIN,
276 	AZX_DRIVER_GENERIC,
277 	AZX_NUM_DRIVERS, /* keep this as last entry */
278 };
279 
280 #define azx_get_snoop_type(chip) \
281 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
282 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
283 
284 /* quirks for old Intel chipsets */
285 #define AZX_DCAPS_INTEL_ICH \
286 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
287 
288 /* quirks for Intel PCH */
289 #define AZX_DCAPS_INTEL_PCH_BASE \
290 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
291 	 AZX_DCAPS_SNOOP_TYPE(SCH))
292 
293 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
294 #define AZX_DCAPS_INTEL_PCH_NOPM \
295 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
296 
297 /* PCH for HSW/BDW; with runtime PM */
298 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
299 #define AZX_DCAPS_INTEL_PCH \
300 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
301 
302 /* HSW HDMI */
303 #define AZX_DCAPS_INTEL_HASWELL \
304 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
305 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
306 	 AZX_DCAPS_SNOOP_TYPE(SCH))
307 
308 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
309 #define AZX_DCAPS_INTEL_BROADWELL \
310 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
311 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
312 	 AZX_DCAPS_SNOOP_TYPE(SCH))
313 
314 #define AZX_DCAPS_INTEL_BAYTRAIL \
315 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
316 
317 #define AZX_DCAPS_INTEL_BRASWELL \
318 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
319 	 AZX_DCAPS_I915_COMPONENT)
320 
321 #define AZX_DCAPS_INTEL_SKYLAKE \
322 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
323 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
324 
325 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
326 
327 /* quirks for ATI SB / AMD Hudson */
328 #define AZX_DCAPS_PRESET_ATI_SB \
329 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
330 	 AZX_DCAPS_SNOOP_TYPE(ATI))
331 
332 /* quirks for ATI/AMD HDMI */
333 #define AZX_DCAPS_PRESET_ATI_HDMI \
334 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
335 	 AZX_DCAPS_NO_MSI64)
336 
337 /* quirks for ATI HDMI with snoop off */
338 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
339 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
340 
341 /* quirks for AMD SB */
342 #define AZX_DCAPS_PRESET_AMD_SB \
343 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
344 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)
345 
346 /* quirks for Nvidia */
347 #define AZX_DCAPS_PRESET_NVIDIA \
348 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
349 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
350 
351 #define AZX_DCAPS_PRESET_CTHDA \
352 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
353 	 AZX_DCAPS_NO_64BIT |\
354 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
355 
356 /*
357  * vga_switcheroo support
358  */
359 #ifdef SUPPORT_VGA_SWITCHEROO
360 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
361 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
362 #else
363 #define use_vga_switcheroo(chip)	0
364 #define needs_eld_notify_link(chip)	false
365 #endif
366 
367 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
368 					((pci)->device == 0x0c0c) || \
369 					((pci)->device == 0x0d0c) || \
370 					((pci)->device == 0x160c) || \
371 					((pci)->device == 0x490d))
372 
373 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
374 
375 static const char * const driver_short_names[] = {
376 	[AZX_DRIVER_ICH] = "HDA Intel",
377 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
378 	[AZX_DRIVER_SCH] = "HDA Intel MID",
379 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
380 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
381 	[AZX_DRIVER_ATI] = "HDA ATI SB",
382 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
383 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
384 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
385 	[AZX_DRIVER_SIS] = "HDA SIS966",
386 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
387 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
388 	[AZX_DRIVER_TERA] = "HDA Teradici",
389 	[AZX_DRIVER_CTX] = "HDA Creative",
390 	[AZX_DRIVER_CTHDA] = "HDA Creative",
391 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
392 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
393 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
394 };
395 
396 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
397 static void set_default_power_save(struct azx *chip);
398 
399 /*
400  * initialize the PCI registers
401  */
402 /* update bits in a PCI register byte */
403 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
404 			    unsigned char mask, unsigned char val)
405 {
406 	unsigned char data;
407 
408 	pci_read_config_byte(pci, reg, &data);
409 	data &= ~mask;
410 	data |= (val & mask);
411 	pci_write_config_byte(pci, reg, data);
412 }
413 
414 static void azx_init_pci(struct azx *chip)
415 {
416 	int snoop_type = azx_get_snoop_type(chip);
417 
418 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
419 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
420 	 * Ensuring these bits are 0 clears playback static on some HD Audio
421 	 * codecs.
422 	 * The PCI register TCSEL is defined in the Intel manuals.
423 	 */
424 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
425 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
426 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
427 	}
428 
429 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
430 	 * we need to enable snoop.
431 	 */
432 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
433 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
434 			azx_snoop(chip));
435 		update_pci_byte(chip->pci,
436 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
437 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
438 	}
439 
440 	/* For NVIDIA HDA, enable snoop */
441 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
442 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
443 			azx_snoop(chip));
444 		update_pci_byte(chip->pci,
445 				NVIDIA_HDA_TRANSREG_ADDR,
446 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
447 		update_pci_byte(chip->pci,
448 				NVIDIA_HDA_ISTRM_COH,
449 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
450 		update_pci_byte(chip->pci,
451 				NVIDIA_HDA_OSTRM_COH,
452 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
453 	}
454 
455 	/* Enable SCH/PCH snoop if needed */
456 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
457 		unsigned short snoop;
458 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
459 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
460 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
461 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
462 			if (!azx_snoop(chip))
463 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
464 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
465 			pci_read_config_word(chip->pci,
466 				INTEL_SCH_HDA_DEVC, &snoop);
467 		}
468 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
469 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
470 			"Disabled" : "Enabled");
471         }
472 }
473 
474 /*
475  * In BXT-P A0, HD-Audio DMA requests is later than expected,
476  * and makes an audio stream sensitive to system latencies when
477  * 24/32 bits are playing.
478  * Adjusting threshold of DMA fifo to force the DMA request
479  * sooner to improve latency tolerance at the expense of power.
480  */
481 static void bxt_reduce_dma_latency(struct azx *chip)
482 {
483 	u32 val;
484 
485 	val = azx_readl(chip, VS_EM4L);
486 	val &= (0x3 << 20);
487 	azx_writel(chip, VS_EM4L, val);
488 }
489 
490 /*
491  * ML_LCAP bits:
492  *  bit 0: 6 MHz Supported
493  *  bit 1: 12 MHz Supported
494  *  bit 2: 24 MHz Supported
495  *  bit 3: 48 MHz Supported
496  *  bit 4: 96 MHz Supported
497  *  bit 5: 192 MHz Supported
498  */
499 static int intel_get_lctl_scf(struct azx *chip)
500 {
501 	struct hdac_bus *bus = azx_bus(chip);
502 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
503 	u32 val, t;
504 	int i;
505 
506 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
507 
508 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
509 		t = preferred_bits[i];
510 		if (val & (1 << t))
511 			return t;
512 	}
513 
514 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
515 	return 0;
516 }
517 
518 static int intel_ml_lctl_set_power(struct azx *chip, int state)
519 {
520 	struct hdac_bus *bus = azx_bus(chip);
521 	u32 val;
522 	int timeout;
523 
524 	/*
525 	 * the codecs are sharing the first link setting by default
526 	 * If other links are enabled for stream, they need similar fix
527 	 */
528 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
529 	val &= ~AZX_MLCTL_SPA;
530 	val |= state << AZX_MLCTL_SPA_SHIFT;
531 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
532 	/* wait for CPA */
533 	timeout = 50;
534 	while (timeout) {
535 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
536 		    AZX_MLCTL_CPA) == (state << AZX_MLCTL_CPA_SHIFT))
537 			return 0;
538 		timeout--;
539 		udelay(10);
540 	}
541 
542 	return -1;
543 }
544 
545 static void intel_init_lctl(struct azx *chip)
546 {
547 	struct hdac_bus *bus = azx_bus(chip);
548 	u32 val;
549 	int ret;
550 
551 	/* 0. check lctl register value is correct or not */
552 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
553 	/* if SCF is already set, let's use it */
554 	if ((val & ML_LCTL_SCF_MASK) != 0)
555 		return;
556 
557 	/*
558 	 * Before operating on SPA, CPA must match SPA.
559 	 * Any deviation may result in undefined behavior.
560 	 */
561 	if (((val & AZX_MLCTL_SPA) >> AZX_MLCTL_SPA_SHIFT) !=
562 		((val & AZX_MLCTL_CPA) >> AZX_MLCTL_CPA_SHIFT))
563 		return;
564 
565 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
566 	ret = intel_ml_lctl_set_power(chip, 0);
567 	udelay(100);
568 	if (ret)
569 		goto set_spa;
570 
571 	/* 2. update SCF to select a properly audio clock*/
572 	val &= ~ML_LCTL_SCF_MASK;
573 	val |= intel_get_lctl_scf(chip);
574 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
575 
576 set_spa:
577 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
578 	intel_ml_lctl_set_power(chip, 1);
579 	udelay(100);
580 }
581 
582 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
583 {
584 	struct hdac_bus *bus = azx_bus(chip);
585 	struct pci_dev *pci = chip->pci;
586 	u32 val;
587 
588 	snd_hdac_set_codec_wakeup(bus, true);
589 	if (chip->driver_type == AZX_DRIVER_SKL) {
590 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
591 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
592 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
593 	}
594 	azx_init_chip(chip, full_reset);
595 	if (chip->driver_type == AZX_DRIVER_SKL) {
596 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
597 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
598 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
599 	}
600 
601 	snd_hdac_set_codec_wakeup(bus, false);
602 
603 	/* reduce dma latency to avoid noise */
604 	if (IS_BXT(pci))
605 		bxt_reduce_dma_latency(chip);
606 
607 	if (bus->mlcap != NULL)
608 		intel_init_lctl(chip);
609 }
610 
611 /* calculate runtime delay from LPIB */
612 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
613 				   unsigned int pos)
614 {
615 	struct snd_pcm_substream *substream = azx_dev->core.substream;
616 	int stream = substream->stream;
617 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
618 	int delay;
619 
620 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
621 		delay = pos - lpib_pos;
622 	else
623 		delay = lpib_pos - pos;
624 	if (delay < 0) {
625 		if (delay >= azx_dev->core.delay_negative_threshold)
626 			delay = 0;
627 		else
628 			delay += azx_dev->core.bufsize;
629 	}
630 
631 	if (delay >= azx_dev->core.period_bytes) {
632 		dev_info(chip->card->dev,
633 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
634 			 delay, azx_dev->core.period_bytes);
635 		delay = 0;
636 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
637 		chip->get_delay[stream] = NULL;
638 	}
639 
640 	return bytes_to_frames(substream->runtime, delay);
641 }
642 
643 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
644 
645 /* called from IRQ */
646 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
647 {
648 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
649 	int ok;
650 
651 	ok = azx_position_ok(chip, azx_dev);
652 	if (ok == 1) {
653 		azx_dev->irq_pending = 0;
654 		return ok;
655 	} else if (ok == 0) {
656 		/* bogus IRQ, process it later */
657 		azx_dev->irq_pending = 1;
658 		schedule_work(&hda->irq_pending_work);
659 	}
660 	return 0;
661 }
662 
663 #define display_power(chip, enable) \
664 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
665 
666 /*
667  * Check whether the current DMA position is acceptable for updating
668  * periods.  Returns non-zero if it's OK.
669  *
670  * Many HD-audio controllers appear pretty inaccurate about
671  * the update-IRQ timing.  The IRQ is issued before actually the
672  * data is processed.  So, we need to process it afterwords in a
673  * workqueue.
674  */
675 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
676 {
677 	struct snd_pcm_substream *substream = azx_dev->core.substream;
678 	int stream = substream->stream;
679 	u32 wallclk;
680 	unsigned int pos;
681 
682 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
683 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
684 		return -1;	/* bogus (too early) interrupt */
685 
686 	if (chip->get_position[stream])
687 		pos = chip->get_position[stream](chip, azx_dev);
688 	else { /* use the position buffer as default */
689 		pos = azx_get_pos_posbuf(chip, azx_dev);
690 		if (!pos || pos == (u32)-1) {
691 			dev_info(chip->card->dev,
692 				 "Invalid position buffer, using LPIB read method instead.\n");
693 			chip->get_position[stream] = azx_get_pos_lpib;
694 			if (chip->get_position[0] == azx_get_pos_lpib &&
695 			    chip->get_position[1] == azx_get_pos_lpib)
696 				azx_bus(chip)->use_posbuf = false;
697 			pos = azx_get_pos_lpib(chip, azx_dev);
698 			chip->get_delay[stream] = NULL;
699 		} else {
700 			chip->get_position[stream] = azx_get_pos_posbuf;
701 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
702 				chip->get_delay[stream] = azx_get_delay_from_lpib;
703 		}
704 	}
705 
706 	if (pos >= azx_dev->core.bufsize)
707 		pos = 0;
708 
709 	if (WARN_ONCE(!azx_dev->core.period_bytes,
710 		      "hda-intel: zero azx_dev->period_bytes"))
711 		return -1; /* this shouldn't happen! */
712 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
713 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
714 		/* NG - it's below the first next period boundary */
715 		return chip->bdl_pos_adj ? 0 : -1;
716 	azx_dev->core.start_wallclk += wallclk;
717 	return 1; /* OK, it's fine */
718 }
719 
720 /*
721  * The work for pending PCM period updates.
722  */
723 static void azx_irq_pending_work(struct work_struct *work)
724 {
725 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
726 	struct azx *chip = &hda->chip;
727 	struct hdac_bus *bus = azx_bus(chip);
728 	struct hdac_stream *s;
729 	int pending, ok;
730 
731 	if (!hda->irq_pending_warned) {
732 		dev_info(chip->card->dev,
733 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
734 			 chip->card->number);
735 		hda->irq_pending_warned = 1;
736 	}
737 
738 	for (;;) {
739 		pending = 0;
740 		spin_lock_irq(&bus->reg_lock);
741 		list_for_each_entry(s, &bus->stream_list, list) {
742 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
743 			if (!azx_dev->irq_pending ||
744 			    !s->substream ||
745 			    !s->running)
746 				continue;
747 			ok = azx_position_ok(chip, azx_dev);
748 			if (ok > 0) {
749 				azx_dev->irq_pending = 0;
750 				spin_unlock(&bus->reg_lock);
751 				snd_pcm_period_elapsed(s->substream);
752 				spin_lock(&bus->reg_lock);
753 			} else if (ok < 0) {
754 				pending = 0;	/* too early */
755 			} else
756 				pending++;
757 		}
758 		spin_unlock_irq(&bus->reg_lock);
759 		if (!pending)
760 			return;
761 		msleep(1);
762 	}
763 }
764 
765 /* clear irq_pending flags and assure no on-going workq */
766 static void azx_clear_irq_pending(struct azx *chip)
767 {
768 	struct hdac_bus *bus = azx_bus(chip);
769 	struct hdac_stream *s;
770 
771 	spin_lock_irq(&bus->reg_lock);
772 	list_for_each_entry(s, &bus->stream_list, list) {
773 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
774 		azx_dev->irq_pending = 0;
775 	}
776 	spin_unlock_irq(&bus->reg_lock);
777 }
778 
779 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
780 {
781 	struct hdac_bus *bus = azx_bus(chip);
782 
783 	if (request_irq(chip->pci->irq, azx_interrupt,
784 			chip->msi ? 0 : IRQF_SHARED,
785 			chip->card->irq_descr, chip)) {
786 		dev_err(chip->card->dev,
787 			"unable to grab IRQ %d, disabling device\n",
788 			chip->pci->irq);
789 		if (do_disconnect)
790 			snd_card_disconnect(chip->card);
791 		return -1;
792 	}
793 	bus->irq = chip->pci->irq;
794 	chip->card->sync_irq = bus->irq;
795 	pci_intx(chip->pci, !chip->msi);
796 	return 0;
797 }
798 
799 /* get the current DMA position with correction on VIA chips */
800 static unsigned int azx_via_get_position(struct azx *chip,
801 					 struct azx_dev *azx_dev)
802 {
803 	unsigned int link_pos, mini_pos, bound_pos;
804 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
805 	unsigned int fifo_size;
806 
807 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
808 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
809 		/* Playback, no problem using link position */
810 		return link_pos;
811 	}
812 
813 	/* Capture */
814 	/* For new chipset,
815 	 * use mod to get the DMA position just like old chipset
816 	 */
817 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
818 	mod_dma_pos %= azx_dev->core.period_bytes;
819 
820 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
821 
822 	if (azx_dev->insufficient) {
823 		/* Link position never gather than FIFO size */
824 		if (link_pos <= fifo_size)
825 			return 0;
826 
827 		azx_dev->insufficient = 0;
828 	}
829 
830 	if (link_pos <= fifo_size)
831 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
832 	else
833 		mini_pos = link_pos - fifo_size;
834 
835 	/* Find nearest previous boudary */
836 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
837 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
838 	if (mod_link_pos >= fifo_size)
839 		bound_pos = link_pos - mod_link_pos;
840 	else if (mod_dma_pos >= mod_mini_pos)
841 		bound_pos = mini_pos - mod_mini_pos;
842 	else {
843 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
844 		if (bound_pos >= azx_dev->core.bufsize)
845 			bound_pos = 0;
846 	}
847 
848 	/* Calculate real DMA position we want */
849 	return bound_pos + mod_dma_pos;
850 }
851 
852 #define AMD_FIFO_SIZE	32
853 
854 /* get the current DMA position with FIFO size correction */
855 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
856 {
857 	struct snd_pcm_substream *substream = azx_dev->core.substream;
858 	struct snd_pcm_runtime *runtime = substream->runtime;
859 	unsigned int pos, delay;
860 
861 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
862 	if (!runtime)
863 		return pos;
864 
865 	runtime->delay = AMD_FIFO_SIZE;
866 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
867 	if (azx_dev->insufficient) {
868 		if (pos < delay) {
869 			delay = pos;
870 			runtime->delay = bytes_to_frames(runtime, pos);
871 		} else {
872 			azx_dev->insufficient = 0;
873 		}
874 	}
875 
876 	/* correct the DMA position for capture stream */
877 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
878 		if (pos < delay)
879 			pos += azx_dev->core.bufsize;
880 		pos -= delay;
881 	}
882 
883 	return pos;
884 }
885 
886 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
887 				   unsigned int pos)
888 {
889 	struct snd_pcm_substream *substream = azx_dev->core.substream;
890 
891 	/* just read back the calculated value in the above */
892 	return substream->runtime->delay;
893 }
894 
895 static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
896 					 struct azx_dev *azx_dev)
897 {
898 	return _snd_hdac_chip_readl(azx_bus(chip),
899 				    AZX_REG_VS_SDXDPIB_XBASE +
900 				    (AZX_REG_VS_SDXDPIB_XINTERVAL *
901 				     azx_dev->core.index));
902 }
903 
904 /* get the current DMA position with correction on SKL+ chips */
905 static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
906 {
907 	/* DPIB register gives a more accurate position for playback */
908 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
909 		return azx_skl_get_dpib_pos(chip, azx_dev);
910 
911 	/* For capture, we need to read posbuf, but it requires a delay
912 	 * for the possible boundary overlap; the read of DPIB fetches the
913 	 * actual posbuf
914 	 */
915 	udelay(20);
916 	azx_skl_get_dpib_pos(chip, azx_dev);
917 	return azx_get_pos_posbuf(chip, azx_dev);
918 }
919 
920 #ifdef CONFIG_PM
921 static DEFINE_MUTEX(card_list_lock);
922 static LIST_HEAD(card_list);
923 
924 static void azx_add_card_list(struct azx *chip)
925 {
926 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
927 	mutex_lock(&card_list_lock);
928 	list_add(&hda->list, &card_list);
929 	mutex_unlock(&card_list_lock);
930 }
931 
932 static void azx_del_card_list(struct azx *chip)
933 {
934 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
935 	mutex_lock(&card_list_lock);
936 	list_del_init(&hda->list);
937 	mutex_unlock(&card_list_lock);
938 }
939 
940 /* trigger power-save check at writing parameter */
941 static int param_set_xint(const char *val, const struct kernel_param *kp)
942 {
943 	struct hda_intel *hda;
944 	struct azx *chip;
945 	int prev = power_save;
946 	int ret = param_set_int(val, kp);
947 
948 	if (ret || prev == power_save)
949 		return ret;
950 
951 	mutex_lock(&card_list_lock);
952 	list_for_each_entry(hda, &card_list, list) {
953 		chip = &hda->chip;
954 		if (!hda->probe_continued || chip->disabled)
955 			continue;
956 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
957 	}
958 	mutex_unlock(&card_list_lock);
959 	return 0;
960 }
961 
962 /*
963  * power management
964  */
965 static bool azx_is_pm_ready(struct snd_card *card)
966 {
967 	struct azx *chip;
968 	struct hda_intel *hda;
969 
970 	if (!card)
971 		return false;
972 	chip = card->private_data;
973 	hda = container_of(chip, struct hda_intel, chip);
974 	if (chip->disabled || hda->init_failed || !chip->running)
975 		return false;
976 	return true;
977 }
978 
979 static void __azx_runtime_suspend(struct azx *chip)
980 {
981 	azx_stop_chip(chip);
982 	azx_enter_link_reset(chip);
983 	azx_clear_irq_pending(chip);
984 	display_power(chip, false);
985 }
986 
987 static void __azx_runtime_resume(struct azx *chip)
988 {
989 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
990 	struct hdac_bus *bus = azx_bus(chip);
991 	struct hda_codec *codec;
992 	int status;
993 
994 	display_power(chip, true);
995 	if (hda->need_i915_power)
996 		snd_hdac_i915_set_bclk(bus);
997 
998 	/* Read STATESTS before controller reset */
999 	status = azx_readw(chip, STATESTS);
1000 
1001 	azx_init_pci(chip);
1002 	hda_intel_init_chip(chip, true);
1003 
1004 	/* Avoid codec resume if runtime resume is for system suspend */
1005 	if (!chip->pm_prepared) {
1006 		list_for_each_codec(codec, &chip->bus) {
1007 			if (codec->relaxed_resume)
1008 				continue;
1009 
1010 			if (codec->forced_resume || (status & (1 << codec->addr)))
1011 				pm_request_resume(hda_codec_dev(codec));
1012 		}
1013 	}
1014 
1015 	/* power down again for link-controlled chips */
1016 	if (!hda->need_i915_power)
1017 		display_power(chip, false);
1018 }
1019 
1020 #ifdef CONFIG_PM_SLEEP
1021 static int azx_prepare(struct device *dev)
1022 {
1023 	struct snd_card *card = dev_get_drvdata(dev);
1024 	struct azx *chip;
1025 
1026 	chip = card->private_data;
1027 	chip->pm_prepared = 1;
1028 
1029 	flush_work(&azx_bus(chip)->unsol_work);
1030 
1031 	/* HDA controller always requires different WAKEEN for runtime suspend
1032 	 * and system suspend, so don't use direct-complete here.
1033 	 */
1034 	return 0;
1035 }
1036 
1037 static void azx_complete(struct device *dev)
1038 {
1039 	struct snd_card *card = dev_get_drvdata(dev);
1040 	struct azx *chip;
1041 
1042 	chip = card->private_data;
1043 	chip->pm_prepared = 0;
1044 }
1045 
1046 static int azx_suspend(struct device *dev)
1047 {
1048 	struct snd_card *card = dev_get_drvdata(dev);
1049 	struct azx *chip;
1050 	struct hdac_bus *bus;
1051 
1052 	if (!azx_is_pm_ready(card))
1053 		return 0;
1054 
1055 	chip = card->private_data;
1056 	bus = azx_bus(chip);
1057 	__azx_runtime_suspend(chip);
1058 	if (bus->irq >= 0) {
1059 		free_irq(bus->irq, chip);
1060 		bus->irq = -1;
1061 		chip->card->sync_irq = -1;
1062 	}
1063 
1064 	if (chip->msi)
1065 		pci_disable_msi(chip->pci);
1066 
1067 	trace_azx_suspend(chip);
1068 	return 0;
1069 }
1070 
1071 static int azx_resume(struct device *dev)
1072 {
1073 	struct snd_card *card = dev_get_drvdata(dev);
1074 	struct azx *chip;
1075 
1076 	if (!azx_is_pm_ready(card))
1077 		return 0;
1078 
1079 	chip = card->private_data;
1080 	if (chip->msi)
1081 		if (pci_enable_msi(chip->pci) < 0)
1082 			chip->msi = 0;
1083 	if (azx_acquire_irq(chip, 1) < 0)
1084 		return -EIO;
1085 
1086 	__azx_runtime_resume(chip);
1087 
1088 	trace_azx_resume(chip);
1089 	return 0;
1090 }
1091 
1092 /* put codec down to D3 at hibernation for Intel SKL+;
1093  * otherwise BIOS may still access the codec and screw up the driver
1094  */
1095 static int azx_freeze_noirq(struct device *dev)
1096 {
1097 	struct snd_card *card = dev_get_drvdata(dev);
1098 	struct azx *chip = card->private_data;
1099 	struct pci_dev *pci = to_pci_dev(dev);
1100 
1101 	if (!azx_is_pm_ready(card))
1102 		return 0;
1103 	if (chip->driver_type == AZX_DRIVER_SKL)
1104 		pci_set_power_state(pci, PCI_D3hot);
1105 
1106 	return 0;
1107 }
1108 
1109 static int azx_thaw_noirq(struct device *dev)
1110 {
1111 	struct snd_card *card = dev_get_drvdata(dev);
1112 	struct azx *chip = card->private_data;
1113 	struct pci_dev *pci = to_pci_dev(dev);
1114 
1115 	if (!azx_is_pm_ready(card))
1116 		return 0;
1117 	if (chip->driver_type == AZX_DRIVER_SKL)
1118 		pci_set_power_state(pci, PCI_D0);
1119 
1120 	return 0;
1121 }
1122 #endif /* CONFIG_PM_SLEEP */
1123 
1124 static int azx_runtime_suspend(struct device *dev)
1125 {
1126 	struct snd_card *card = dev_get_drvdata(dev);
1127 	struct azx *chip;
1128 
1129 	if (!azx_is_pm_ready(card))
1130 		return 0;
1131 	chip = card->private_data;
1132 
1133 	/* enable controller wake up event */
1134 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1135 
1136 	__azx_runtime_suspend(chip);
1137 	trace_azx_runtime_suspend(chip);
1138 	return 0;
1139 }
1140 
1141 static int azx_runtime_resume(struct device *dev)
1142 {
1143 	struct snd_card *card = dev_get_drvdata(dev);
1144 	struct azx *chip;
1145 
1146 	if (!azx_is_pm_ready(card))
1147 		return 0;
1148 	chip = card->private_data;
1149 	__azx_runtime_resume(chip);
1150 
1151 	/* disable controller Wake Up event*/
1152 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1153 
1154 	trace_azx_runtime_resume(chip);
1155 	return 0;
1156 }
1157 
1158 static int azx_runtime_idle(struct device *dev)
1159 {
1160 	struct snd_card *card = dev_get_drvdata(dev);
1161 	struct azx *chip;
1162 	struct hda_intel *hda;
1163 
1164 	if (!card)
1165 		return 0;
1166 
1167 	chip = card->private_data;
1168 	hda = container_of(chip, struct hda_intel, chip);
1169 	if (chip->disabled || hda->init_failed)
1170 		return 0;
1171 
1172 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1173 	    azx_bus(chip)->codec_powered || !chip->running)
1174 		return -EBUSY;
1175 
1176 	/* ELD notification gets broken when HD-audio bus is off */
1177 	if (needs_eld_notify_link(chip))
1178 		return -EBUSY;
1179 
1180 	return 0;
1181 }
1182 
1183 static const struct dev_pm_ops azx_pm = {
1184 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1185 #ifdef CONFIG_PM_SLEEP
1186 	.prepare = azx_prepare,
1187 	.complete = azx_complete,
1188 	.freeze_noirq = azx_freeze_noirq,
1189 	.thaw_noirq = azx_thaw_noirq,
1190 #endif
1191 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1192 };
1193 
1194 #define AZX_PM_OPS	&azx_pm
1195 #else
1196 #define azx_add_card_list(chip) /* NOP */
1197 #define azx_del_card_list(chip) /* NOP */
1198 #define AZX_PM_OPS	NULL
1199 #endif /* CONFIG_PM */
1200 
1201 
1202 static int azx_probe_continue(struct azx *chip);
1203 
1204 #ifdef SUPPORT_VGA_SWITCHEROO
1205 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1206 
1207 static void azx_vs_set_state(struct pci_dev *pci,
1208 			     enum vga_switcheroo_state state)
1209 {
1210 	struct snd_card *card = pci_get_drvdata(pci);
1211 	struct azx *chip = card->private_data;
1212 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1213 	struct hda_codec *codec;
1214 	bool disabled;
1215 
1216 	wait_for_completion(&hda->probe_wait);
1217 	if (hda->init_failed)
1218 		return;
1219 
1220 	disabled = (state == VGA_SWITCHEROO_OFF);
1221 	if (chip->disabled == disabled)
1222 		return;
1223 
1224 	if (!hda->probe_continued) {
1225 		chip->disabled = disabled;
1226 		if (!disabled) {
1227 			dev_info(chip->card->dev,
1228 				 "Start delayed initialization\n");
1229 			if (azx_probe_continue(chip) < 0)
1230 				dev_err(chip->card->dev, "initialization error\n");
1231 		}
1232 	} else {
1233 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1234 			 disabled ? "Disabling" : "Enabling");
1235 		if (disabled) {
1236 			list_for_each_codec(codec, &chip->bus) {
1237 				pm_runtime_suspend(hda_codec_dev(codec));
1238 				pm_runtime_disable(hda_codec_dev(codec));
1239 			}
1240 			pm_runtime_suspend(card->dev);
1241 			pm_runtime_disable(card->dev);
1242 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1243 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1244 			 * put ourselves there */
1245 			pci->current_state = PCI_D3cold;
1246 			chip->disabled = true;
1247 			if (snd_hda_lock_devices(&chip->bus))
1248 				dev_warn(chip->card->dev,
1249 					 "Cannot lock devices!\n");
1250 		} else {
1251 			snd_hda_unlock_devices(&chip->bus);
1252 			chip->disabled = false;
1253 			pm_runtime_enable(card->dev);
1254 			list_for_each_codec(codec, &chip->bus) {
1255 				pm_runtime_enable(hda_codec_dev(codec));
1256 				pm_runtime_resume(hda_codec_dev(codec));
1257 			}
1258 		}
1259 	}
1260 }
1261 
1262 static bool azx_vs_can_switch(struct pci_dev *pci)
1263 {
1264 	struct snd_card *card = pci_get_drvdata(pci);
1265 	struct azx *chip = card->private_data;
1266 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1267 
1268 	wait_for_completion(&hda->probe_wait);
1269 	if (hda->init_failed)
1270 		return false;
1271 	if (chip->disabled || !hda->probe_continued)
1272 		return true;
1273 	if (snd_hda_lock_devices(&chip->bus))
1274 		return false;
1275 	snd_hda_unlock_devices(&chip->bus);
1276 	return true;
1277 }
1278 
1279 /*
1280  * The discrete GPU cannot power down unless the HDA controller runtime
1281  * suspends, so activate runtime PM on codecs even if power_save == 0.
1282  */
1283 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1284 {
1285 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1286 	struct hda_codec *codec;
1287 
1288 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1289 		list_for_each_codec(codec, &chip->bus)
1290 			codec->auto_runtime_pm = 1;
1291 		/* reset the power save setup */
1292 		if (chip->running)
1293 			set_default_power_save(chip);
1294 	}
1295 }
1296 
1297 static void azx_vs_gpu_bound(struct pci_dev *pci,
1298 			     enum vga_switcheroo_client_id client_id)
1299 {
1300 	struct snd_card *card = pci_get_drvdata(pci);
1301 	struct azx *chip = card->private_data;
1302 
1303 	if (client_id == VGA_SWITCHEROO_DIS)
1304 		chip->bus.keep_power = 0;
1305 	setup_vga_switcheroo_runtime_pm(chip);
1306 }
1307 
1308 static void init_vga_switcheroo(struct azx *chip)
1309 {
1310 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1311 	struct pci_dev *p = get_bound_vga(chip->pci);
1312 	struct pci_dev *parent;
1313 	if (p) {
1314 		dev_info(chip->card->dev,
1315 			 "Handle vga_switcheroo audio client\n");
1316 		hda->use_vga_switcheroo = 1;
1317 
1318 		/* cleared in either gpu_bound op or codec probe, or when its
1319 		 * upstream port has _PR3 (i.e. dGPU).
1320 		 */
1321 		parent = pci_upstream_bridge(p);
1322 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1323 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1324 		pci_dev_put(p);
1325 	}
1326 }
1327 
1328 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1329 	.set_gpu_state = azx_vs_set_state,
1330 	.can_switch = azx_vs_can_switch,
1331 	.gpu_bound = azx_vs_gpu_bound,
1332 };
1333 
1334 static int register_vga_switcheroo(struct azx *chip)
1335 {
1336 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1337 	struct pci_dev *p;
1338 	int err;
1339 
1340 	if (!hda->use_vga_switcheroo)
1341 		return 0;
1342 
1343 	p = get_bound_vga(chip->pci);
1344 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1345 	pci_dev_put(p);
1346 
1347 	if (err < 0)
1348 		return err;
1349 	hda->vga_switcheroo_registered = 1;
1350 
1351 	return 0;
1352 }
1353 #else
1354 #define init_vga_switcheroo(chip)		/* NOP */
1355 #define register_vga_switcheroo(chip)		0
1356 #define check_hdmi_disabled(pci)	false
1357 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1358 #endif /* SUPPORT_VGA_SWITCHER */
1359 
1360 /*
1361  * destructor
1362  */
1363 static void azx_free(struct azx *chip)
1364 {
1365 	struct pci_dev *pci = chip->pci;
1366 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1367 	struct hdac_bus *bus = azx_bus(chip);
1368 
1369 	if (hda->freed)
1370 		return;
1371 
1372 	if (azx_has_pm_runtime(chip) && chip->running)
1373 		pm_runtime_get_noresume(&pci->dev);
1374 	chip->running = 0;
1375 
1376 	azx_del_card_list(chip);
1377 
1378 	hda->init_failed = 1; /* to be sure */
1379 	complete_all(&hda->probe_wait);
1380 
1381 	if (use_vga_switcheroo(hda)) {
1382 		if (chip->disabled && hda->probe_continued)
1383 			snd_hda_unlock_devices(&chip->bus);
1384 		if (hda->vga_switcheroo_registered)
1385 			vga_switcheroo_unregister_client(chip->pci);
1386 	}
1387 
1388 	if (bus->chip_init) {
1389 		azx_clear_irq_pending(chip);
1390 		azx_stop_all_streams(chip);
1391 		azx_stop_chip(chip);
1392 	}
1393 
1394 	if (bus->irq >= 0)
1395 		free_irq(bus->irq, (void*)chip);
1396 	if (chip->msi)
1397 		pci_disable_msi(chip->pci);
1398 	iounmap(bus->remap_addr);
1399 
1400 	azx_free_stream_pages(chip);
1401 	azx_free_streams(chip);
1402 	snd_hdac_bus_exit(bus);
1403 
1404 	if (chip->region_requested)
1405 		pci_release_regions(chip->pci);
1406 
1407 	pci_disable_device(chip->pci);
1408 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1409 	release_firmware(chip->fw);
1410 #endif
1411 	display_power(chip, false);
1412 
1413 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1414 		snd_hdac_i915_exit(bus);
1415 
1416 	hda->freed = 1;
1417 }
1418 
1419 static int azx_dev_disconnect(struct snd_device *device)
1420 {
1421 	struct azx *chip = device->device_data;
1422 	struct hdac_bus *bus = azx_bus(chip);
1423 
1424 	chip->bus.shutdown = 1;
1425 	cancel_work_sync(&bus->unsol_work);
1426 
1427 	return 0;
1428 }
1429 
1430 static int azx_dev_free(struct snd_device *device)
1431 {
1432 	azx_free(device->device_data);
1433 	return 0;
1434 }
1435 
1436 #ifdef SUPPORT_VGA_SWITCHEROO
1437 #ifdef CONFIG_ACPI
1438 /* ATPX is in the integrated GPU's namespace */
1439 static bool atpx_present(void)
1440 {
1441 	struct pci_dev *pdev = NULL;
1442 	acpi_handle dhandle, atpx_handle;
1443 	acpi_status status;
1444 
1445 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1446 		dhandle = ACPI_HANDLE(&pdev->dev);
1447 		if (dhandle) {
1448 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1449 			if (ACPI_SUCCESS(status)) {
1450 				pci_dev_put(pdev);
1451 				return true;
1452 			}
1453 		}
1454 	}
1455 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1456 		dhandle = ACPI_HANDLE(&pdev->dev);
1457 		if (dhandle) {
1458 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1459 			if (ACPI_SUCCESS(status)) {
1460 				pci_dev_put(pdev);
1461 				return true;
1462 			}
1463 		}
1464 	}
1465 	return false;
1466 }
1467 #else
1468 static bool atpx_present(void)
1469 {
1470 	return false;
1471 }
1472 #endif
1473 
1474 /*
1475  * Check of disabled HDMI controller by vga_switcheroo
1476  */
1477 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1478 {
1479 	struct pci_dev *p;
1480 
1481 	/* check only discrete GPU */
1482 	switch (pci->vendor) {
1483 	case PCI_VENDOR_ID_ATI:
1484 	case PCI_VENDOR_ID_AMD:
1485 		if (pci->devfn == 1) {
1486 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1487 							pci->bus->number, 0);
1488 			if (p) {
1489 				/* ATPX is in the integrated GPU's ACPI namespace
1490 				 * rather than the dGPU's namespace. However,
1491 				 * the dGPU is the one who is involved in
1492 				 * vgaswitcheroo.
1493 				 */
1494 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1495 				    atpx_present())
1496 					return p;
1497 				pci_dev_put(p);
1498 			}
1499 		}
1500 		break;
1501 	case PCI_VENDOR_ID_NVIDIA:
1502 		if (pci->devfn == 1) {
1503 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1504 							pci->bus->number, 0);
1505 			if (p) {
1506 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1507 					return p;
1508 				pci_dev_put(p);
1509 			}
1510 		}
1511 		break;
1512 	}
1513 	return NULL;
1514 }
1515 
1516 static bool check_hdmi_disabled(struct pci_dev *pci)
1517 {
1518 	bool vga_inactive = false;
1519 	struct pci_dev *p = get_bound_vga(pci);
1520 
1521 	if (p) {
1522 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1523 			vga_inactive = true;
1524 		pci_dev_put(p);
1525 	}
1526 	return vga_inactive;
1527 }
1528 #endif /* SUPPORT_VGA_SWITCHEROO */
1529 
1530 /*
1531  * allow/deny-listing for position_fix
1532  */
1533 static const struct snd_pci_quirk position_fix_list[] = {
1534 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1535 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1536 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1537 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1538 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1539 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1540 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1541 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1542 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1543 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1544 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1545 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1546 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1547 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1548 	{}
1549 };
1550 
1551 static int check_position_fix(struct azx *chip, int fix)
1552 {
1553 	const struct snd_pci_quirk *q;
1554 
1555 	switch (fix) {
1556 	case POS_FIX_AUTO:
1557 	case POS_FIX_LPIB:
1558 	case POS_FIX_POSBUF:
1559 	case POS_FIX_VIACOMBO:
1560 	case POS_FIX_COMBO:
1561 	case POS_FIX_SKL:
1562 	case POS_FIX_FIFO:
1563 		return fix;
1564 	}
1565 
1566 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1567 	if (q) {
1568 		dev_info(chip->card->dev,
1569 			 "position_fix set to %d for device %04x:%04x\n",
1570 			 q->value, q->subvendor, q->subdevice);
1571 		return q->value;
1572 	}
1573 
1574 	/* Check VIA/ATI HD Audio Controller exist */
1575 	if (chip->driver_type == AZX_DRIVER_VIA) {
1576 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1577 		return POS_FIX_VIACOMBO;
1578 	}
1579 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1580 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1581 		return POS_FIX_FIFO;
1582 	}
1583 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1584 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1585 		return POS_FIX_LPIB;
1586 	}
1587 	if (chip->driver_type == AZX_DRIVER_SKL) {
1588 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1589 		return POS_FIX_SKL;
1590 	}
1591 	return POS_FIX_AUTO;
1592 }
1593 
1594 static void assign_position_fix(struct azx *chip, int fix)
1595 {
1596 	static const azx_get_pos_callback_t callbacks[] = {
1597 		[POS_FIX_AUTO] = NULL,
1598 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1599 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1600 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1601 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1602 		[POS_FIX_SKL] = azx_get_pos_skl,
1603 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1604 	};
1605 
1606 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1607 
1608 	/* combo mode uses LPIB only for playback */
1609 	if (fix == POS_FIX_COMBO)
1610 		chip->get_position[1] = NULL;
1611 
1612 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1613 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1614 		chip->get_delay[0] = chip->get_delay[1] =
1615 			azx_get_delay_from_lpib;
1616 	}
1617 
1618 	if (fix == POS_FIX_FIFO)
1619 		chip->get_delay[0] = chip->get_delay[1] =
1620 			azx_get_delay_from_fifo;
1621 }
1622 
1623 /*
1624  * deny-lists for probe_mask
1625  */
1626 static const struct snd_pci_quirk probe_mask_list[] = {
1627 	/* Thinkpad often breaks the controller communication when accessing
1628 	 * to the non-working (or non-existing) modem codec slot.
1629 	 */
1630 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1631 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1632 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1633 	/* broken BIOS */
1634 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1635 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1636 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1637 	/* forced codec slots */
1638 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1639 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1640 	/* WinFast VP200 H (Teradici) user reported broken communication */
1641 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1642 	{}
1643 };
1644 
1645 #define AZX_FORCE_CODEC_MASK	0x100
1646 
1647 static void check_probe_mask(struct azx *chip, int dev)
1648 {
1649 	const struct snd_pci_quirk *q;
1650 
1651 	chip->codec_probe_mask = probe_mask[dev];
1652 	if (chip->codec_probe_mask == -1) {
1653 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1654 		if (q) {
1655 			dev_info(chip->card->dev,
1656 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1657 				 q->value, q->subvendor, q->subdevice);
1658 			chip->codec_probe_mask = q->value;
1659 		}
1660 	}
1661 
1662 	/* check forced option */
1663 	if (chip->codec_probe_mask != -1 &&
1664 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1665 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1666 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1667 			 (int)azx_bus(chip)->codec_mask);
1668 	}
1669 }
1670 
1671 /*
1672  * allow/deny-list for enable_msi
1673  */
1674 static const struct snd_pci_quirk msi_deny_list[] = {
1675 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1676 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1677 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1678 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1679 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1680 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1681 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1682 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1683 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1684 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1685 	{}
1686 };
1687 
1688 static void check_msi(struct azx *chip)
1689 {
1690 	const struct snd_pci_quirk *q;
1691 
1692 	if (enable_msi >= 0) {
1693 		chip->msi = !!enable_msi;
1694 		return;
1695 	}
1696 	chip->msi = 1;	/* enable MSI as default */
1697 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1698 	if (q) {
1699 		dev_info(chip->card->dev,
1700 			 "msi for device %04x:%04x set to %d\n",
1701 			 q->subvendor, q->subdevice, q->value);
1702 		chip->msi = q->value;
1703 		return;
1704 	}
1705 
1706 	/* NVidia chipsets seem to cause troubles with MSI */
1707 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1708 		dev_info(chip->card->dev, "Disabling MSI\n");
1709 		chip->msi = 0;
1710 	}
1711 }
1712 
1713 /* check the snoop mode availability */
1714 static void azx_check_snoop_available(struct azx *chip)
1715 {
1716 	int snoop = hda_snoop;
1717 
1718 	if (snoop >= 0) {
1719 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1720 			 snoop ? "snoop" : "non-snoop");
1721 		chip->snoop = snoop;
1722 		chip->uc_buffer = !snoop;
1723 		return;
1724 	}
1725 
1726 	snoop = true;
1727 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1728 	    chip->driver_type == AZX_DRIVER_VIA) {
1729 		/* force to non-snoop mode for a new VIA controller
1730 		 * when BIOS is set
1731 		 */
1732 		u8 val;
1733 		pci_read_config_byte(chip->pci, 0x42, &val);
1734 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1735 				      chip->pci->revision == 0x20))
1736 			snoop = false;
1737 	}
1738 
1739 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1740 		snoop = false;
1741 
1742 	chip->snoop = snoop;
1743 	if (!snoop) {
1744 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1745 		/* C-Media requires non-cached pages only for CORB/RIRB */
1746 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1747 			chip->uc_buffer = true;
1748 	}
1749 }
1750 
1751 static void azx_probe_work(struct work_struct *work)
1752 {
1753 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1754 	azx_probe_continue(&hda->chip);
1755 }
1756 
1757 static int default_bdl_pos_adj(struct azx *chip)
1758 {
1759 	/* some exceptions: Atoms seem problematic with value 1 */
1760 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1761 		switch (chip->pci->device) {
1762 		case 0x0f04: /* Baytrail */
1763 		case 0x2284: /* Braswell */
1764 			return 32;
1765 		}
1766 	}
1767 
1768 	switch (chip->driver_type) {
1769 	case AZX_DRIVER_ICH:
1770 	case AZX_DRIVER_PCH:
1771 		return 1;
1772 	default:
1773 		return 32;
1774 	}
1775 }
1776 
1777 /*
1778  * constructor
1779  */
1780 static const struct hda_controller_ops pci_hda_ops;
1781 
1782 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1783 		      int dev, unsigned int driver_caps,
1784 		      struct azx **rchip)
1785 {
1786 	static const struct snd_device_ops ops = {
1787 		.dev_disconnect = azx_dev_disconnect,
1788 		.dev_free = azx_dev_free,
1789 	};
1790 	struct hda_intel *hda;
1791 	struct azx *chip;
1792 	int err;
1793 
1794 	*rchip = NULL;
1795 
1796 	err = pci_enable_device(pci);
1797 	if (err < 0)
1798 		return err;
1799 
1800 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1801 	if (!hda) {
1802 		pci_disable_device(pci);
1803 		return -ENOMEM;
1804 	}
1805 
1806 	chip = &hda->chip;
1807 	mutex_init(&chip->open_mutex);
1808 	chip->card = card;
1809 	chip->pci = pci;
1810 	chip->ops = &pci_hda_ops;
1811 	chip->driver_caps = driver_caps;
1812 	chip->driver_type = driver_caps & 0xff;
1813 	check_msi(chip);
1814 	chip->dev_index = dev;
1815 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1816 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1817 	INIT_LIST_HEAD(&chip->pcm_list);
1818 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1819 	INIT_LIST_HEAD(&hda->list);
1820 	init_vga_switcheroo(chip);
1821 	init_completion(&hda->probe_wait);
1822 
1823 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1824 
1825 	check_probe_mask(chip, dev);
1826 
1827 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1828 		chip->fallback_to_single_cmd = 1;
1829 	else /* explicitly set to single_cmd or not */
1830 		chip->single_cmd = single_cmd;
1831 
1832 	azx_check_snoop_available(chip);
1833 
1834 	if (bdl_pos_adj[dev] < 0)
1835 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1836 	else
1837 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1838 
1839 	err = azx_bus_init(chip, model[dev]);
1840 	if (err < 0) {
1841 		pci_disable_device(pci);
1842 		return err;
1843 	}
1844 
1845 	/* use the non-cached pages in non-snoop mode */
1846 	if (!azx_snoop(chip))
1847 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_UC;
1848 
1849 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1850 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1851 		chip->bus.core.needs_damn_long_delay = 1;
1852 	}
1853 
1854 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1855 	if (err < 0) {
1856 		dev_err(card->dev, "Error creating device [card]!\n");
1857 		azx_free(chip);
1858 		return err;
1859 	}
1860 
1861 	/* continue probing in work context as may trigger request module */
1862 	INIT_WORK(&hda->probe_work, azx_probe_work);
1863 
1864 	*rchip = chip;
1865 
1866 	return 0;
1867 }
1868 
1869 static int azx_first_init(struct azx *chip)
1870 {
1871 	int dev = chip->dev_index;
1872 	struct pci_dev *pci = chip->pci;
1873 	struct snd_card *card = chip->card;
1874 	struct hdac_bus *bus = azx_bus(chip);
1875 	int err;
1876 	unsigned short gcap;
1877 	unsigned int dma_bits = 64;
1878 
1879 #if BITS_PER_LONG != 64
1880 	/* Fix up base address on ULI M5461 */
1881 	if (chip->driver_type == AZX_DRIVER_ULI) {
1882 		u16 tmp3;
1883 		pci_read_config_word(pci, 0x40, &tmp3);
1884 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1885 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1886 	}
1887 #endif
1888 
1889 	err = pci_request_regions(pci, "ICH HD audio");
1890 	if (err < 0)
1891 		return err;
1892 	chip->region_requested = 1;
1893 
1894 	bus->addr = pci_resource_start(pci, 0);
1895 	bus->remap_addr = pci_ioremap_bar(pci, 0);
1896 	if (bus->remap_addr == NULL) {
1897 		dev_err(card->dev, "ioremap error\n");
1898 		return -ENXIO;
1899 	}
1900 
1901 	if (chip->driver_type == AZX_DRIVER_SKL)
1902 		snd_hdac_bus_parse_capabilities(bus);
1903 
1904 	/*
1905 	 * Some Intel CPUs has always running timer (ART) feature and
1906 	 * controller may have Global time sync reporting capability, so
1907 	 * check both of these before declaring synchronized time reporting
1908 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1909 	 */
1910 	chip->gts_present = false;
1911 
1912 #ifdef CONFIG_X86
1913 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1914 		chip->gts_present = true;
1915 #endif
1916 
1917 	if (chip->msi) {
1918 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1919 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1920 			pci->no_64bit_msi = true;
1921 		}
1922 		if (pci_enable_msi(pci) < 0)
1923 			chip->msi = 0;
1924 	}
1925 
1926 	pci_set_master(pci);
1927 
1928 	gcap = azx_readw(chip, GCAP);
1929 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1930 
1931 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1932 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1933 		dma_bits = 40;
1934 
1935 	/* disable SB600 64bit support for safety */
1936 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1937 		struct pci_dev *p_smbus;
1938 		dma_bits = 40;
1939 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1940 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1941 					 NULL);
1942 		if (p_smbus) {
1943 			if (p_smbus->revision < 0x30)
1944 				gcap &= ~AZX_GCAP_64OK;
1945 			pci_dev_put(p_smbus);
1946 		}
1947 	}
1948 
1949 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1950 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1951 		dma_bits = 40;
1952 
1953 	/* disable 64bit DMA address on some devices */
1954 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1955 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1956 		gcap &= ~AZX_GCAP_64OK;
1957 	}
1958 
1959 	/* disable buffer size rounding to 128-byte multiples if supported */
1960 	if (align_buffer_size >= 0)
1961 		chip->align_buffer_size = !!align_buffer_size;
1962 	else {
1963 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1964 			chip->align_buffer_size = 0;
1965 		else
1966 			chip->align_buffer_size = 1;
1967 	}
1968 
1969 	/* allow 64bit DMA address if supported by H/W */
1970 	if (!(gcap & AZX_GCAP_64OK))
1971 		dma_bits = 32;
1972 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1973 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1974 
1975 	/* read number of streams from GCAP register instead of using
1976 	 * hardcoded value
1977 	 */
1978 	chip->capture_streams = (gcap >> 8) & 0x0f;
1979 	chip->playback_streams = (gcap >> 12) & 0x0f;
1980 	if (!chip->playback_streams && !chip->capture_streams) {
1981 		/* gcap didn't give any info, switching to old method */
1982 
1983 		switch (chip->driver_type) {
1984 		case AZX_DRIVER_ULI:
1985 			chip->playback_streams = ULI_NUM_PLAYBACK;
1986 			chip->capture_streams = ULI_NUM_CAPTURE;
1987 			break;
1988 		case AZX_DRIVER_ATIHDMI:
1989 		case AZX_DRIVER_ATIHDMI_NS:
1990 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1991 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1992 			break;
1993 		case AZX_DRIVER_GENERIC:
1994 		default:
1995 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1996 			chip->capture_streams = ICH6_NUM_CAPTURE;
1997 			break;
1998 		}
1999 	}
2000 	chip->capture_index_offset = 0;
2001 	chip->playback_index_offset = chip->capture_streams;
2002 	chip->num_streams = chip->playback_streams + chip->capture_streams;
2003 
2004 	/* sanity check for the SDxCTL.STRM field overflow */
2005 	if (chip->num_streams > 15 &&
2006 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
2007 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
2008 			 "forcing separate stream tags", chip->num_streams);
2009 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
2010 	}
2011 
2012 	/* initialize streams */
2013 	err = azx_init_streams(chip);
2014 	if (err < 0)
2015 		return err;
2016 
2017 	err = azx_alloc_stream_pages(chip);
2018 	if (err < 0)
2019 		return err;
2020 
2021 	/* initialize chip */
2022 	azx_init_pci(chip);
2023 
2024 	snd_hdac_i915_set_bclk(bus);
2025 
2026 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2027 
2028 	/* codec detection */
2029 	if (!azx_bus(chip)->codec_mask) {
2030 		dev_err(card->dev, "no codecs found!\n");
2031 		/* keep running the rest for the runtime PM */
2032 	}
2033 
2034 	if (azx_acquire_irq(chip, 0) < 0)
2035 		return -EBUSY;
2036 
2037 	strcpy(card->driver, "HDA-Intel");
2038 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2039 		sizeof(card->shortname));
2040 	snprintf(card->longname, sizeof(card->longname),
2041 		 "%s at 0x%lx irq %i",
2042 		 card->shortname, bus->addr, bus->irq);
2043 
2044 	return 0;
2045 }
2046 
2047 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2048 /* callback from request_firmware_nowait() */
2049 static void azx_firmware_cb(const struct firmware *fw, void *context)
2050 {
2051 	struct snd_card *card = context;
2052 	struct azx *chip = card->private_data;
2053 
2054 	if (fw)
2055 		chip->fw = fw;
2056 	else
2057 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2058 	if (!chip->disabled) {
2059 		/* continue probing */
2060 		azx_probe_continue(chip);
2061 	}
2062 }
2063 #endif
2064 
2065 static int disable_msi_reset_irq(struct azx *chip)
2066 {
2067 	struct hdac_bus *bus = azx_bus(chip);
2068 	int err;
2069 
2070 	free_irq(bus->irq, chip);
2071 	bus->irq = -1;
2072 	chip->card->sync_irq = -1;
2073 	pci_disable_msi(chip->pci);
2074 	chip->msi = 0;
2075 	err = azx_acquire_irq(chip, 1);
2076 	if (err < 0)
2077 		return err;
2078 
2079 	return 0;
2080 }
2081 
2082 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
2083 			     struct vm_area_struct *area)
2084 {
2085 #ifdef CONFIG_X86
2086 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2087 	struct azx *chip = apcm->chip;
2088 	if (chip->uc_buffer)
2089 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
2090 #endif
2091 }
2092 
2093 /* Denylist for skipping the whole probe:
2094  * some HD-audio PCI entries are exposed without any codecs, and such devices
2095  * should be ignored from the beginning.
2096  */
2097 static const struct pci_device_id driver_denylist[] = {
2098 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2099 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2100 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2101 	{}
2102 };
2103 
2104 static const struct hda_controller_ops pci_hda_ops = {
2105 	.disable_msi_reset_irq = disable_msi_reset_irq,
2106 	.pcm_mmap_prepare = pcm_mmap_prepare,
2107 	.position_check = azx_position_check,
2108 };
2109 
2110 static int azx_probe(struct pci_dev *pci,
2111 		     const struct pci_device_id *pci_id)
2112 {
2113 	static int dev;
2114 	struct snd_card *card;
2115 	struct hda_intel *hda;
2116 	struct azx *chip;
2117 	bool schedule_probe;
2118 	int err;
2119 
2120 	if (pci_match_id(driver_denylist, pci)) {
2121 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2122 		return -ENODEV;
2123 	}
2124 
2125 	if (dev >= SNDRV_CARDS)
2126 		return -ENODEV;
2127 	if (!enable[dev]) {
2128 		dev++;
2129 		return -ENOENT;
2130 	}
2131 
2132 	/*
2133 	 * stop probe if another Intel's DSP driver should be activated
2134 	 */
2135 	if (dmic_detect) {
2136 		err = snd_intel_dsp_driver_probe(pci);
2137 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2138 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2139 			return -ENODEV;
2140 		}
2141 	} else {
2142 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2143 	}
2144 
2145 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2146 			   0, &card);
2147 	if (err < 0) {
2148 		dev_err(&pci->dev, "Error creating card!\n");
2149 		return err;
2150 	}
2151 
2152 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2153 	if (err < 0)
2154 		goto out_free;
2155 	card->private_data = chip;
2156 	hda = container_of(chip, struct hda_intel, chip);
2157 
2158 	pci_set_drvdata(pci, card);
2159 
2160 	err = register_vga_switcheroo(chip);
2161 	if (err < 0) {
2162 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2163 		goto out_free;
2164 	}
2165 
2166 	if (check_hdmi_disabled(pci)) {
2167 		dev_info(card->dev, "VGA controller is disabled\n");
2168 		dev_info(card->dev, "Delaying initialization\n");
2169 		chip->disabled = true;
2170 	}
2171 
2172 	schedule_probe = !chip->disabled;
2173 
2174 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2175 	if (patch[dev] && *patch[dev]) {
2176 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2177 			 patch[dev]);
2178 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2179 					      &pci->dev, GFP_KERNEL, card,
2180 					      azx_firmware_cb);
2181 		if (err < 0)
2182 			goto out_free;
2183 		schedule_probe = false; /* continued in azx_firmware_cb() */
2184 	}
2185 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2186 
2187 #ifndef CONFIG_SND_HDA_I915
2188 	if (CONTROLLER_IN_GPU(pci))
2189 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2190 #endif
2191 
2192 	if (schedule_probe)
2193 		schedule_work(&hda->probe_work);
2194 
2195 	dev++;
2196 	if (chip->disabled)
2197 		complete_all(&hda->probe_wait);
2198 	return 0;
2199 
2200 out_free:
2201 	snd_card_free(card);
2202 	return err;
2203 }
2204 
2205 #ifdef CONFIG_PM
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 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2237 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2238 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2239 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2240 	/* https://bugs.launchpad.net/bugs/1821663 */
2241 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2242 	{}
2243 };
2244 #endif /* CONFIG_PM */
2245 
2246 static void set_default_power_save(struct azx *chip)
2247 {
2248 	int val = power_save;
2249 
2250 #ifdef CONFIG_PM
2251 	if (pm_blacklist) {
2252 		const struct snd_pci_quirk *q;
2253 
2254 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2255 		if (q && val) {
2256 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2257 				 q->subvendor, q->subdevice);
2258 			val = 0;
2259 		}
2260 	}
2261 #endif /* CONFIG_PM */
2262 	snd_hda_set_power_save(&chip->bus, val * 1000);
2263 }
2264 
2265 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2266 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2267 	[AZX_DRIVER_NVIDIA] = 8,
2268 	[AZX_DRIVER_TERA] = 1,
2269 };
2270 
2271 static int azx_probe_continue(struct azx *chip)
2272 {
2273 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2274 	struct hdac_bus *bus = azx_bus(chip);
2275 	struct pci_dev *pci = chip->pci;
2276 	int dev = chip->dev_index;
2277 	int err;
2278 
2279 	to_hda_bus(bus)->bus_probing = 1;
2280 	hda->probe_continued = 1;
2281 
2282 	/* bind with i915 if needed */
2283 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2284 		err = snd_hdac_i915_init(bus);
2285 		if (err < 0) {
2286 			/* if the controller is bound only with HDMI/DP
2287 			 * (for HSW and BDW), we need to abort the probe;
2288 			 * for other chips, still continue probing as other
2289 			 * codecs can be on the same link.
2290 			 */
2291 			if (CONTROLLER_IN_GPU(pci)) {
2292 				dev_err(chip->card->dev,
2293 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2294 				goto out_free;
2295 			} else {
2296 				/* don't bother any longer */
2297 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2298 			}
2299 		}
2300 
2301 		/* HSW/BDW controllers need this power */
2302 		if (CONTROLLER_IN_GPU(pci))
2303 			hda->need_i915_power = true;
2304 	}
2305 
2306 	/* Request display power well for the HDA controller or codec. For
2307 	 * Haswell/Broadwell, both the display HDA controller and codec need
2308 	 * this power. For other platforms, like Baytrail/Braswell, only the
2309 	 * display codec needs the power and it can be released after probe.
2310 	 */
2311 	display_power(chip, true);
2312 
2313 	err = azx_first_init(chip);
2314 	if (err < 0)
2315 		goto out_free;
2316 
2317 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2318 	chip->beep_mode = beep_mode[dev];
2319 #endif
2320 
2321 	/* create codec instances */
2322 	if (bus->codec_mask) {
2323 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2324 		if (err < 0)
2325 			goto out_free;
2326 	}
2327 
2328 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2329 	if (chip->fw) {
2330 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2331 					 chip->fw->data);
2332 		if (err < 0)
2333 			goto out_free;
2334 #ifndef CONFIG_PM
2335 		release_firmware(chip->fw); /* no longer needed */
2336 		chip->fw = NULL;
2337 #endif
2338 	}
2339 #endif
2340 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2341 		err = azx_codec_configure(chip);
2342 		if (err < 0)
2343 			goto out_free;
2344 	}
2345 
2346 	err = snd_card_register(chip->card);
2347 	if (err < 0)
2348 		goto out_free;
2349 
2350 	setup_vga_switcheroo_runtime_pm(chip);
2351 
2352 	chip->running = 1;
2353 	azx_add_card_list(chip);
2354 
2355 	set_default_power_save(chip);
2356 
2357 	if (azx_has_pm_runtime(chip)) {
2358 		pm_runtime_use_autosuspend(&pci->dev);
2359 		pm_runtime_allow(&pci->dev);
2360 		pm_runtime_put_autosuspend(&pci->dev);
2361 	}
2362 
2363 out_free:
2364 	if (err < 0) {
2365 		azx_free(chip);
2366 		return err;
2367 	}
2368 
2369 	if (!hda->need_i915_power)
2370 		display_power(chip, false);
2371 	complete_all(&hda->probe_wait);
2372 	to_hda_bus(bus)->bus_probing = 0;
2373 	return 0;
2374 }
2375 
2376 static void azx_remove(struct pci_dev *pci)
2377 {
2378 	struct snd_card *card = pci_get_drvdata(pci);
2379 	struct azx *chip;
2380 	struct hda_intel *hda;
2381 
2382 	if (card) {
2383 		/* cancel the pending probing work */
2384 		chip = card->private_data;
2385 		hda = container_of(chip, struct hda_intel, chip);
2386 		/* FIXME: below is an ugly workaround.
2387 		 * Both device_release_driver() and driver_probe_device()
2388 		 * take *both* the device's and its parent's lock before
2389 		 * calling the remove() and probe() callbacks.  The codec
2390 		 * probe takes the locks of both the codec itself and its
2391 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2392 		 * the PCI controller is unbound, it takes its lock, too
2393 		 * ==> ouch, a deadlock!
2394 		 * As a workaround, we unlock temporarily here the controller
2395 		 * device during cancel_work_sync() call.
2396 		 */
2397 		device_unlock(&pci->dev);
2398 		cancel_work_sync(&hda->probe_work);
2399 		device_lock(&pci->dev);
2400 
2401 		snd_card_free(card);
2402 	}
2403 }
2404 
2405 static void azx_shutdown(struct pci_dev *pci)
2406 {
2407 	struct snd_card *card = pci_get_drvdata(pci);
2408 	struct azx *chip;
2409 
2410 	if (!card)
2411 		return;
2412 	chip = card->private_data;
2413 	if (chip && chip->running)
2414 		azx_stop_chip(chip);
2415 }
2416 
2417 /* PCI IDs */
2418 static const struct pci_device_id azx_ids[] = {
2419 	/* CPT */
2420 	{ PCI_DEVICE(0x8086, 0x1c20),
2421 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2422 	/* PBG */
2423 	{ PCI_DEVICE(0x8086, 0x1d20),
2424 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2425 	/* Panther Point */
2426 	{ PCI_DEVICE(0x8086, 0x1e20),
2427 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2428 	/* Lynx Point */
2429 	{ PCI_DEVICE(0x8086, 0x8c20),
2430 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2431 	/* 9 Series */
2432 	{ PCI_DEVICE(0x8086, 0x8ca0),
2433 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2434 	/* Wellsburg */
2435 	{ PCI_DEVICE(0x8086, 0x8d20),
2436 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2437 	{ PCI_DEVICE(0x8086, 0x8d21),
2438 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2439 	/* Lewisburg */
2440 	{ PCI_DEVICE(0x8086, 0xa1f0),
2441 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2442 	{ PCI_DEVICE(0x8086, 0xa270),
2443 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2444 	/* Lynx Point-LP */
2445 	{ PCI_DEVICE(0x8086, 0x9c20),
2446 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2447 	/* Lynx Point-LP */
2448 	{ PCI_DEVICE(0x8086, 0x9c21),
2449 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2450 	/* Wildcat Point-LP */
2451 	{ PCI_DEVICE(0x8086, 0x9ca0),
2452 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2453 	/* Sunrise Point */
2454 	{ PCI_DEVICE(0x8086, 0xa170),
2455 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2456 	/* Sunrise Point-LP */
2457 	{ PCI_DEVICE(0x8086, 0x9d70),
2458 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2459 	/* Kabylake */
2460 	{ PCI_DEVICE(0x8086, 0xa171),
2461 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2462 	/* Kabylake-LP */
2463 	{ PCI_DEVICE(0x8086, 0x9d71),
2464 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2465 	/* Kabylake-H */
2466 	{ PCI_DEVICE(0x8086, 0xa2f0),
2467 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2468 	/* Coffelake */
2469 	{ PCI_DEVICE(0x8086, 0xa348),
2470 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2471 	/* Cannonlake */
2472 	{ PCI_DEVICE(0x8086, 0x9dc8),
2473 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2474 	/* CometLake-LP */
2475 	{ PCI_DEVICE(0x8086, 0x02C8),
2476 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2477 	/* CometLake-H */
2478 	{ PCI_DEVICE(0x8086, 0x06C8),
2479 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2480 	{ PCI_DEVICE(0x8086, 0xf1c8),
2481 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2482 	/* CometLake-S */
2483 	{ PCI_DEVICE(0x8086, 0xa3f0),
2484 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2485 	/* CometLake-R */
2486 	{ PCI_DEVICE(0x8086, 0xf0c8),
2487 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2488 	/* Icelake */
2489 	{ PCI_DEVICE(0x8086, 0x34c8),
2490 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2491 	/* Icelake-H */
2492 	{ PCI_DEVICE(0x8086, 0x3dc8),
2493 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2494 	/* Jasperlake */
2495 	{ PCI_DEVICE(0x8086, 0x38c8),
2496 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2497 	{ PCI_DEVICE(0x8086, 0x4dc8),
2498 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2499 	/* Tigerlake */
2500 	{ PCI_DEVICE(0x8086, 0xa0c8),
2501 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2502 	/* Tigerlake-H */
2503 	{ PCI_DEVICE(0x8086, 0x43c8),
2504 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2505 	/* DG1 */
2506 	{ PCI_DEVICE(0x8086, 0x490d),
2507 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2508 	/* Alderlake-S */
2509 	{ PCI_DEVICE(0x8086, 0x7ad0),
2510 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2511 	/* Alderlake-P */
2512 	{ PCI_DEVICE(0x8086, 0x51c8),
2513 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2514 	/* Elkhart Lake */
2515 	{ PCI_DEVICE(0x8086, 0x4b55),
2516 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2517 	{ PCI_DEVICE(0x8086, 0x4b58),
2518 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2519 	/* Broxton-P(Apollolake) */
2520 	{ PCI_DEVICE(0x8086, 0x5a98),
2521 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2522 	/* Broxton-T */
2523 	{ PCI_DEVICE(0x8086, 0x1a98),
2524 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2525 	/* Gemini-Lake */
2526 	{ PCI_DEVICE(0x8086, 0x3198),
2527 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2528 	/* Haswell */
2529 	{ PCI_DEVICE(0x8086, 0x0a0c),
2530 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2531 	{ PCI_DEVICE(0x8086, 0x0c0c),
2532 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2533 	{ PCI_DEVICE(0x8086, 0x0d0c),
2534 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2535 	/* Broadwell */
2536 	{ PCI_DEVICE(0x8086, 0x160c),
2537 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2538 	/* 5 Series/3400 */
2539 	{ PCI_DEVICE(0x8086, 0x3b56),
2540 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2541 	/* Poulsbo */
2542 	{ PCI_DEVICE(0x8086, 0x811b),
2543 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2544 	/* Oaktrail */
2545 	{ PCI_DEVICE(0x8086, 0x080a),
2546 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2547 	/* BayTrail */
2548 	{ PCI_DEVICE(0x8086, 0x0f04),
2549 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2550 	/* Braswell */
2551 	{ PCI_DEVICE(0x8086, 0x2284),
2552 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2553 	/* ICH6 */
2554 	{ PCI_DEVICE(0x8086, 0x2668),
2555 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2556 	/* ICH7 */
2557 	{ PCI_DEVICE(0x8086, 0x27d8),
2558 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2559 	/* ESB2 */
2560 	{ PCI_DEVICE(0x8086, 0x269a),
2561 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2562 	/* ICH8 */
2563 	{ PCI_DEVICE(0x8086, 0x284b),
2564 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2565 	/* ICH9 */
2566 	{ PCI_DEVICE(0x8086, 0x293e),
2567 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2568 	/* ICH9 */
2569 	{ PCI_DEVICE(0x8086, 0x293f),
2570 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2571 	/* ICH10 */
2572 	{ PCI_DEVICE(0x8086, 0x3a3e),
2573 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2574 	/* ICH10 */
2575 	{ PCI_DEVICE(0x8086, 0x3a6e),
2576 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2577 	/* Generic Intel */
2578 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2579 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2580 	  .class_mask = 0xffffff,
2581 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2582 	/* ATI SB 450/600/700/800/900 */
2583 	{ PCI_DEVICE(0x1002, 0x437b),
2584 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2585 	{ PCI_DEVICE(0x1002, 0x4383),
2586 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2587 	/* AMD Hudson */
2588 	{ PCI_DEVICE(0x1022, 0x780d),
2589 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2590 	/* AMD, X370 & co */
2591 	{ PCI_DEVICE(0x1022, 0x1457),
2592 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2593 	/* AMD, X570 & co */
2594 	{ PCI_DEVICE(0x1022, 0x1487),
2595 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2596 	/* AMD Stoney */
2597 	{ PCI_DEVICE(0x1022, 0x157a),
2598 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2599 			 AZX_DCAPS_PM_RUNTIME },
2600 	/* AMD Raven */
2601 	{ PCI_DEVICE(0x1022, 0x15e3),
2602 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2603 	/* ATI HDMI */
2604 	{ PCI_DEVICE(0x1002, 0x0002),
2605 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2606 	  AZX_DCAPS_PM_RUNTIME },
2607 	{ PCI_DEVICE(0x1002, 0x1308),
2608 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2609 	{ PCI_DEVICE(0x1002, 0x157a),
2610 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2611 	{ PCI_DEVICE(0x1002, 0x15b3),
2612 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2613 	{ PCI_DEVICE(0x1002, 0x793b),
2614 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2615 	{ PCI_DEVICE(0x1002, 0x7919),
2616 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2617 	{ PCI_DEVICE(0x1002, 0x960f),
2618 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2619 	{ PCI_DEVICE(0x1002, 0x970f),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2621 	{ PCI_DEVICE(0x1002, 0x9840),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2623 	{ PCI_DEVICE(0x1002, 0xaa00),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2625 	{ PCI_DEVICE(0x1002, 0xaa08),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2627 	{ PCI_DEVICE(0x1002, 0xaa10),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2629 	{ PCI_DEVICE(0x1002, 0xaa18),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2631 	{ PCI_DEVICE(0x1002, 0xaa20),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2633 	{ PCI_DEVICE(0x1002, 0xaa28),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2635 	{ PCI_DEVICE(0x1002, 0xaa30),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2637 	{ PCI_DEVICE(0x1002, 0xaa38),
2638 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2639 	{ PCI_DEVICE(0x1002, 0xaa40),
2640 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2641 	{ PCI_DEVICE(0x1002, 0xaa48),
2642 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2643 	{ PCI_DEVICE(0x1002, 0xaa50),
2644 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2645 	{ PCI_DEVICE(0x1002, 0xaa58),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2647 	{ PCI_DEVICE(0x1002, 0xaa60),
2648 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2649 	{ PCI_DEVICE(0x1002, 0xaa68),
2650 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2651 	{ PCI_DEVICE(0x1002, 0xaa80),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2653 	{ PCI_DEVICE(0x1002, 0xaa88),
2654 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2655 	{ PCI_DEVICE(0x1002, 0xaa90),
2656 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2657 	{ PCI_DEVICE(0x1002, 0xaa98),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2659 	{ PCI_DEVICE(0x1002, 0x9902),
2660 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2661 	{ PCI_DEVICE(0x1002, 0xaaa0),
2662 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2663 	{ PCI_DEVICE(0x1002, 0xaaa8),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2665 	{ PCI_DEVICE(0x1002, 0xaab0),
2666 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2667 	{ PCI_DEVICE(0x1002, 0xaac0),
2668 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2669 	  AZX_DCAPS_PM_RUNTIME },
2670 	{ PCI_DEVICE(0x1002, 0xaac8),
2671 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2672 	  AZX_DCAPS_PM_RUNTIME },
2673 	{ PCI_DEVICE(0x1002, 0xaad8),
2674 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2675 	  AZX_DCAPS_PM_RUNTIME },
2676 	{ PCI_DEVICE(0x1002, 0xaae0),
2677 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2678 	  AZX_DCAPS_PM_RUNTIME },
2679 	{ PCI_DEVICE(0x1002, 0xaae8),
2680 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2681 	  AZX_DCAPS_PM_RUNTIME },
2682 	{ PCI_DEVICE(0x1002, 0xaaf0),
2683 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2684 	  AZX_DCAPS_PM_RUNTIME },
2685 	{ PCI_DEVICE(0x1002, 0xaaf8),
2686 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2687 	  AZX_DCAPS_PM_RUNTIME },
2688 	{ PCI_DEVICE(0x1002, 0xab00),
2689 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2690 	  AZX_DCAPS_PM_RUNTIME },
2691 	{ PCI_DEVICE(0x1002, 0xab08),
2692 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2693 	  AZX_DCAPS_PM_RUNTIME },
2694 	{ PCI_DEVICE(0x1002, 0xab10),
2695 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2696 	  AZX_DCAPS_PM_RUNTIME },
2697 	{ PCI_DEVICE(0x1002, 0xab18),
2698 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2699 	  AZX_DCAPS_PM_RUNTIME },
2700 	{ PCI_DEVICE(0x1002, 0xab20),
2701 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2702 	  AZX_DCAPS_PM_RUNTIME },
2703 	{ PCI_DEVICE(0x1002, 0xab28),
2704 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2705 	  AZX_DCAPS_PM_RUNTIME },
2706 	{ PCI_DEVICE(0x1002, 0xab38),
2707 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2708 	  AZX_DCAPS_PM_RUNTIME },
2709 	/* VIA VT8251/VT8237A */
2710 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2711 	/* VIA GFX VT7122/VX900 */
2712 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2713 	/* VIA GFX VT6122/VX11 */
2714 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2715 	/* SIS966 */
2716 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2717 	/* ULI M5461 */
2718 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2719 	/* NVIDIA MCP */
2720 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2721 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2722 	  .class_mask = 0xffffff,
2723 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2724 	/* Teradici */
2725 	{ PCI_DEVICE(0x6549, 0x1200),
2726 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2727 	{ PCI_DEVICE(0x6549, 0x2200),
2728 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2729 	/* Creative X-Fi (CA0110-IBG) */
2730 	/* CTHDA chips */
2731 	{ PCI_DEVICE(0x1102, 0x0010),
2732 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2733 	{ PCI_DEVICE(0x1102, 0x0012),
2734 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2735 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2736 	/* the following entry conflicts with snd-ctxfi driver,
2737 	 * as ctxfi driver mutates from HD-audio to native mode with
2738 	 * a special command sequence.
2739 	 */
2740 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2741 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2742 	  .class_mask = 0xffffff,
2743 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2744 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2745 #else
2746 	/* this entry seems still valid -- i.e. without emu20kx chip */
2747 	{ PCI_DEVICE(0x1102, 0x0009),
2748 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2749 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2750 #endif
2751 	/* CM8888 */
2752 	{ PCI_DEVICE(0x13f6, 0x5011),
2753 	  .driver_data = AZX_DRIVER_CMEDIA |
2754 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2755 	/* Vortex86MX */
2756 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2757 	/* VMware HDAudio */
2758 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2759 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2760 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2761 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2762 	  .class_mask = 0xffffff,
2763 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2764 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2765 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2766 	  .class_mask = 0xffffff,
2767 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2768 	/* Zhaoxin */
2769 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2770 	{ 0, }
2771 };
2772 MODULE_DEVICE_TABLE(pci, azx_ids);
2773 
2774 /* pci_driver definition */
2775 static struct pci_driver azx_driver = {
2776 	.name = KBUILD_MODNAME,
2777 	.id_table = azx_ids,
2778 	.probe = azx_probe,
2779 	.remove = azx_remove,
2780 	.shutdown = azx_shutdown,
2781 	.driver = {
2782 		.pm = AZX_PM_OPS,
2783 	},
2784 };
2785 
2786 module_pci_driver(azx_driver);
2787