xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision f1432cd2)
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_DESCRIPTION("Intel HDA driver");
212 
213 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
214 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
215 #define SUPPORT_VGA_SWITCHEROO
216 #endif
217 #endif
218 
219 
220 /*
221  */
222 
223 /* driver types */
224 enum {
225 	AZX_DRIVER_ICH,
226 	AZX_DRIVER_PCH,
227 	AZX_DRIVER_SCH,
228 	AZX_DRIVER_SKL,
229 	AZX_DRIVER_HDMI,
230 	AZX_DRIVER_ATI,
231 	AZX_DRIVER_ATIHDMI,
232 	AZX_DRIVER_ATIHDMI_NS,
233 	AZX_DRIVER_VIA,
234 	AZX_DRIVER_SIS,
235 	AZX_DRIVER_ULI,
236 	AZX_DRIVER_NVIDIA,
237 	AZX_DRIVER_TERA,
238 	AZX_DRIVER_CTX,
239 	AZX_DRIVER_CTHDA,
240 	AZX_DRIVER_CMEDIA,
241 	AZX_DRIVER_ZHAOXIN,
242 	AZX_DRIVER_GENERIC,
243 	AZX_NUM_DRIVERS, /* keep this as last entry */
244 };
245 
246 #define azx_get_snoop_type(chip) \
247 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
248 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
249 
250 /* quirks for old Intel chipsets */
251 #define AZX_DCAPS_INTEL_ICH \
252 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
253 
254 /* quirks for Intel PCH */
255 #define AZX_DCAPS_INTEL_PCH_BASE \
256 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
257 	 AZX_DCAPS_SNOOP_TYPE(SCH))
258 
259 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
260 #define AZX_DCAPS_INTEL_PCH_NOPM \
261 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
262 
263 /* PCH for HSW/BDW; with runtime PM */
264 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
265 #define AZX_DCAPS_INTEL_PCH \
266 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
267 
268 /* HSW HDMI */
269 #define AZX_DCAPS_INTEL_HASWELL \
270 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
271 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
272 	 AZX_DCAPS_SNOOP_TYPE(SCH))
273 
274 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
275 #define AZX_DCAPS_INTEL_BROADWELL \
276 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
277 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
278 	 AZX_DCAPS_SNOOP_TYPE(SCH))
279 
280 #define AZX_DCAPS_INTEL_BAYTRAIL \
281 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
282 
283 #define AZX_DCAPS_INTEL_BRASWELL \
284 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
285 	 AZX_DCAPS_I915_COMPONENT)
286 
287 #define AZX_DCAPS_INTEL_SKYLAKE \
288 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
289 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
290 
291 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
292 
293 /* quirks for ATI SB / AMD Hudson */
294 #define AZX_DCAPS_PRESET_ATI_SB \
295 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
296 	 AZX_DCAPS_SNOOP_TYPE(ATI))
297 
298 /* quirks for ATI/AMD HDMI */
299 #define AZX_DCAPS_PRESET_ATI_HDMI \
300 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
301 	 AZX_DCAPS_NO_MSI64)
302 
303 /* quirks for ATI HDMI with snoop off */
304 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
305 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
306 
307 /* quirks for AMD SB */
308 #define AZX_DCAPS_PRESET_AMD_SB \
309 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
310 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
311 	 AZX_DCAPS_RETRY_PROBE)
312 
313 /* quirks for Nvidia */
314 #define AZX_DCAPS_PRESET_NVIDIA \
315 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
316 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
317 
318 #define AZX_DCAPS_PRESET_CTHDA \
319 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
320 	 AZX_DCAPS_NO_64BIT |\
321 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
322 
323 /*
324  * vga_switcheroo support
325  */
326 #ifdef SUPPORT_VGA_SWITCHEROO
327 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
328 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
329 #else
330 #define use_vga_switcheroo(chip)	0
331 #define needs_eld_notify_link(chip)	false
332 #endif
333 
334 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
335 					((pci)->device == 0x0c0c) || \
336 					((pci)->device == 0x0d0c) || \
337 					((pci)->device == 0x160c) || \
338 					((pci)->device == 0x490d) || \
339 					((pci)->device == 0x4f90) || \
340 					((pci)->device == 0x4f91) || \
341 					((pci)->device == 0x4f92))
342 
343 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
344 
345 static const char * const driver_short_names[] = {
346 	[AZX_DRIVER_ICH] = "HDA Intel",
347 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
348 	[AZX_DRIVER_SCH] = "HDA Intel MID",
349 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
350 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
351 	[AZX_DRIVER_ATI] = "HDA ATI SB",
352 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
353 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
354 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
355 	[AZX_DRIVER_SIS] = "HDA SIS966",
356 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
357 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
358 	[AZX_DRIVER_TERA] = "HDA Teradici",
359 	[AZX_DRIVER_CTX] = "HDA Creative",
360 	[AZX_DRIVER_CTHDA] = "HDA Creative",
361 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
362 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
363 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
364 };
365 
366 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
367 static void set_default_power_save(struct azx *chip);
368 
369 /*
370  * initialize the PCI registers
371  */
372 /* update bits in a PCI register byte */
373 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
374 			    unsigned char mask, unsigned char val)
375 {
376 	unsigned char data;
377 
378 	pci_read_config_byte(pci, reg, &data);
379 	data &= ~mask;
380 	data |= (val & mask);
381 	pci_write_config_byte(pci, reg, data);
382 }
383 
384 static void azx_init_pci(struct azx *chip)
385 {
386 	int snoop_type = azx_get_snoop_type(chip);
387 
388 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
389 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
390 	 * Ensuring these bits are 0 clears playback static on some HD Audio
391 	 * codecs.
392 	 * The PCI register TCSEL is defined in the Intel manuals.
393 	 */
394 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
395 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
396 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
397 	}
398 
399 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
400 	 * we need to enable snoop.
401 	 */
402 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
403 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
404 			azx_snoop(chip));
405 		update_pci_byte(chip->pci,
406 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
407 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
408 	}
409 
410 	/* For NVIDIA HDA, enable snoop */
411 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
412 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
413 			azx_snoop(chip));
414 		update_pci_byte(chip->pci,
415 				NVIDIA_HDA_TRANSREG_ADDR,
416 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
417 		update_pci_byte(chip->pci,
418 				NVIDIA_HDA_ISTRM_COH,
419 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
420 		update_pci_byte(chip->pci,
421 				NVIDIA_HDA_OSTRM_COH,
422 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
423 	}
424 
425 	/* Enable SCH/PCH snoop if needed */
426 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
427 		unsigned short snoop;
428 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
429 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
430 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
431 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
432 			if (!azx_snoop(chip))
433 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
434 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
435 			pci_read_config_word(chip->pci,
436 				INTEL_SCH_HDA_DEVC, &snoop);
437 		}
438 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
439 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
440 			"Disabled" : "Enabled");
441         }
442 }
443 
444 /*
445  * In BXT-P A0, HD-Audio DMA requests is later than expected,
446  * and makes an audio stream sensitive to system latencies when
447  * 24/32 bits are playing.
448  * Adjusting threshold of DMA fifo to force the DMA request
449  * sooner to improve latency tolerance at the expense of power.
450  */
451 static void bxt_reduce_dma_latency(struct azx *chip)
452 {
453 	u32 val;
454 
455 	val = azx_readl(chip, VS_EM4L);
456 	val &= (0x3 << 20);
457 	azx_writel(chip, VS_EM4L, val);
458 }
459 
460 /*
461  * ML_LCAP bits:
462  *  bit 0: 6 MHz Supported
463  *  bit 1: 12 MHz Supported
464  *  bit 2: 24 MHz Supported
465  *  bit 3: 48 MHz Supported
466  *  bit 4: 96 MHz Supported
467  *  bit 5: 192 MHz Supported
468  */
469 static int intel_get_lctl_scf(struct azx *chip)
470 {
471 	struct hdac_bus *bus = azx_bus(chip);
472 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
473 	u32 val, t;
474 	int i;
475 
476 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
477 
478 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
479 		t = preferred_bits[i];
480 		if (val & (1 << t))
481 			return t;
482 	}
483 
484 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
485 	return 0;
486 }
487 
488 static int intel_ml_lctl_set_power(struct azx *chip, int state)
489 {
490 	struct hdac_bus *bus = azx_bus(chip);
491 	u32 val;
492 	int timeout;
493 
494 	/*
495 	 * the codecs are sharing the first link setting by default
496 	 * If other links are enabled for stream, they need similar fix
497 	 */
498 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
499 	val &= ~AZX_MLCTL_SPA;
500 	val |= state << AZX_MLCTL_SPA_SHIFT;
501 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
502 	/* wait for CPA */
503 	timeout = 50;
504 	while (timeout) {
505 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
506 		    AZX_MLCTL_CPA) == (state << AZX_MLCTL_CPA_SHIFT))
507 			return 0;
508 		timeout--;
509 		udelay(10);
510 	}
511 
512 	return -1;
513 }
514 
515 static void intel_init_lctl(struct azx *chip)
516 {
517 	struct hdac_bus *bus = azx_bus(chip);
518 	u32 val;
519 	int ret;
520 
521 	/* 0. check lctl register value is correct or not */
522 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
523 	/* if SCF is already set, let's use it */
524 	if ((val & ML_LCTL_SCF_MASK) != 0)
525 		return;
526 
527 	/*
528 	 * Before operating on SPA, CPA must match SPA.
529 	 * Any deviation may result in undefined behavior.
530 	 */
531 	if (((val & AZX_MLCTL_SPA) >> AZX_MLCTL_SPA_SHIFT) !=
532 		((val & AZX_MLCTL_CPA) >> AZX_MLCTL_CPA_SHIFT))
533 		return;
534 
535 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
536 	ret = intel_ml_lctl_set_power(chip, 0);
537 	udelay(100);
538 	if (ret)
539 		goto set_spa;
540 
541 	/* 2. update SCF to select a properly audio clock*/
542 	val &= ~ML_LCTL_SCF_MASK;
543 	val |= intel_get_lctl_scf(chip);
544 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
545 
546 set_spa:
547 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
548 	intel_ml_lctl_set_power(chip, 1);
549 	udelay(100);
550 }
551 
552 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
553 {
554 	struct hdac_bus *bus = azx_bus(chip);
555 	struct pci_dev *pci = chip->pci;
556 	u32 val;
557 
558 	snd_hdac_set_codec_wakeup(bus, true);
559 	if (chip->driver_type == AZX_DRIVER_SKL) {
560 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
561 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
562 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
563 	}
564 	azx_init_chip(chip, full_reset);
565 	if (chip->driver_type == AZX_DRIVER_SKL) {
566 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
567 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
568 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
569 	}
570 
571 	snd_hdac_set_codec_wakeup(bus, false);
572 
573 	/* reduce dma latency to avoid noise */
574 	if (IS_BXT(pci))
575 		bxt_reduce_dma_latency(chip);
576 
577 	if (bus->mlcap != NULL)
578 		intel_init_lctl(chip);
579 }
580 
581 /* calculate runtime delay from LPIB */
582 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
583 				   unsigned int pos)
584 {
585 	struct snd_pcm_substream *substream = azx_dev->core.substream;
586 	int stream = substream->stream;
587 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
588 	int delay;
589 
590 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
591 		delay = pos - lpib_pos;
592 	else
593 		delay = lpib_pos - pos;
594 	if (delay < 0) {
595 		if (delay >= azx_dev->core.delay_negative_threshold)
596 			delay = 0;
597 		else
598 			delay += azx_dev->core.bufsize;
599 	}
600 
601 	if (delay >= azx_dev->core.period_bytes) {
602 		dev_info(chip->card->dev,
603 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
604 			 delay, azx_dev->core.period_bytes);
605 		delay = 0;
606 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
607 		chip->get_delay[stream] = NULL;
608 	}
609 
610 	return bytes_to_frames(substream->runtime, delay);
611 }
612 
613 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
614 
615 /* called from IRQ */
616 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
617 {
618 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
619 	int ok;
620 
621 	ok = azx_position_ok(chip, azx_dev);
622 	if (ok == 1) {
623 		azx_dev->irq_pending = 0;
624 		return ok;
625 	} else if (ok == 0) {
626 		/* bogus IRQ, process it later */
627 		azx_dev->irq_pending = 1;
628 		schedule_work(&hda->irq_pending_work);
629 	}
630 	return 0;
631 }
632 
633 #define display_power(chip, enable) \
634 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
635 
636 /*
637  * Check whether the current DMA position is acceptable for updating
638  * periods.  Returns non-zero if it's OK.
639  *
640  * Many HD-audio controllers appear pretty inaccurate about
641  * the update-IRQ timing.  The IRQ is issued before actually the
642  * data is processed.  So, we need to process it afterwords in a
643  * workqueue.
644  *
645  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
646  */
647 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
648 {
649 	struct snd_pcm_substream *substream = azx_dev->core.substream;
650 	struct snd_pcm_runtime *runtime = substream->runtime;
651 	int stream = substream->stream;
652 	u32 wallclk;
653 	unsigned int pos;
654 	snd_pcm_uframes_t hwptr, target;
655 
656 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
657 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
658 		return -1;	/* bogus (too early) interrupt */
659 
660 	if (chip->get_position[stream])
661 		pos = chip->get_position[stream](chip, azx_dev);
662 	else { /* use the position buffer as default */
663 		pos = azx_get_pos_posbuf(chip, azx_dev);
664 		if (!pos || pos == (u32)-1) {
665 			dev_info(chip->card->dev,
666 				 "Invalid position buffer, using LPIB read method instead.\n");
667 			chip->get_position[stream] = azx_get_pos_lpib;
668 			if (chip->get_position[0] == azx_get_pos_lpib &&
669 			    chip->get_position[1] == azx_get_pos_lpib)
670 				azx_bus(chip)->use_posbuf = false;
671 			pos = azx_get_pos_lpib(chip, azx_dev);
672 			chip->get_delay[stream] = NULL;
673 		} else {
674 			chip->get_position[stream] = azx_get_pos_posbuf;
675 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
676 				chip->get_delay[stream] = azx_get_delay_from_lpib;
677 		}
678 	}
679 
680 	if (pos >= azx_dev->core.bufsize)
681 		pos = 0;
682 
683 	if (WARN_ONCE(!azx_dev->core.period_bytes,
684 		      "hda-intel: zero azx_dev->period_bytes"))
685 		return -1; /* this shouldn't happen! */
686 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
687 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
688 		/* NG - it's below the first next period boundary */
689 		return chip->bdl_pos_adj ? 0 : -1;
690 	azx_dev->core.start_wallclk += wallclk;
691 
692 	if (azx_dev->core.no_period_wakeup)
693 		return 1; /* OK, no need to check period boundary */
694 
695 	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
696 		return 1; /* OK, already in hwptr updating process */
697 
698 	/* check whether the period gets really elapsed */
699 	pos = bytes_to_frames(runtime, pos);
700 	hwptr = runtime->hw_ptr_base + pos;
701 	if (hwptr < runtime->status->hw_ptr)
702 		hwptr += runtime->buffer_size;
703 	target = runtime->hw_ptr_interrupt + runtime->period_size;
704 	if (hwptr < target) {
705 		/* too early wakeup, process it later */
706 		return chip->bdl_pos_adj ? 0 : -1;
707 	}
708 
709 	return 1; /* OK, it's fine */
710 }
711 
712 /*
713  * The work for pending PCM period updates.
714  */
715 static void azx_irq_pending_work(struct work_struct *work)
716 {
717 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
718 	struct azx *chip = &hda->chip;
719 	struct hdac_bus *bus = azx_bus(chip);
720 	struct hdac_stream *s;
721 	int pending, ok;
722 
723 	if (!hda->irq_pending_warned) {
724 		dev_info(chip->card->dev,
725 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
726 			 chip->card->number);
727 		hda->irq_pending_warned = 1;
728 	}
729 
730 	for (;;) {
731 		pending = 0;
732 		spin_lock_irq(&bus->reg_lock);
733 		list_for_each_entry(s, &bus->stream_list, list) {
734 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
735 			if (!azx_dev->irq_pending ||
736 			    !s->substream ||
737 			    !s->running)
738 				continue;
739 			ok = azx_position_ok(chip, azx_dev);
740 			if (ok > 0) {
741 				azx_dev->irq_pending = 0;
742 				spin_unlock(&bus->reg_lock);
743 				snd_pcm_period_elapsed(s->substream);
744 				spin_lock(&bus->reg_lock);
745 			} else if (ok < 0) {
746 				pending = 0;	/* too early */
747 			} else
748 				pending++;
749 		}
750 		spin_unlock_irq(&bus->reg_lock);
751 		if (!pending)
752 			return;
753 		msleep(1);
754 	}
755 }
756 
757 /* clear irq_pending flags and assure no on-going workq */
758 static void azx_clear_irq_pending(struct azx *chip)
759 {
760 	struct hdac_bus *bus = azx_bus(chip);
761 	struct hdac_stream *s;
762 
763 	spin_lock_irq(&bus->reg_lock);
764 	list_for_each_entry(s, &bus->stream_list, list) {
765 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
766 		azx_dev->irq_pending = 0;
767 	}
768 	spin_unlock_irq(&bus->reg_lock);
769 }
770 
771 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
772 {
773 	struct hdac_bus *bus = azx_bus(chip);
774 
775 	if (request_irq(chip->pci->irq, azx_interrupt,
776 			chip->msi ? 0 : IRQF_SHARED,
777 			chip->card->irq_descr, chip)) {
778 		dev_err(chip->card->dev,
779 			"unable to grab IRQ %d, disabling device\n",
780 			chip->pci->irq);
781 		if (do_disconnect)
782 			snd_card_disconnect(chip->card);
783 		return -1;
784 	}
785 	bus->irq = chip->pci->irq;
786 	chip->card->sync_irq = bus->irq;
787 	pci_intx(chip->pci, !chip->msi);
788 	return 0;
789 }
790 
791 /* get the current DMA position with correction on VIA chips */
792 static unsigned int azx_via_get_position(struct azx *chip,
793 					 struct azx_dev *azx_dev)
794 {
795 	unsigned int link_pos, mini_pos, bound_pos;
796 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
797 	unsigned int fifo_size;
798 
799 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
800 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
801 		/* Playback, no problem using link position */
802 		return link_pos;
803 	}
804 
805 	/* Capture */
806 	/* For new chipset,
807 	 * use mod to get the DMA position just like old chipset
808 	 */
809 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
810 	mod_dma_pos %= azx_dev->core.period_bytes;
811 
812 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
813 
814 	if (azx_dev->insufficient) {
815 		/* Link position never gather than FIFO size */
816 		if (link_pos <= fifo_size)
817 			return 0;
818 
819 		azx_dev->insufficient = 0;
820 	}
821 
822 	if (link_pos <= fifo_size)
823 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
824 	else
825 		mini_pos = link_pos - fifo_size;
826 
827 	/* Find nearest previous boudary */
828 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
829 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
830 	if (mod_link_pos >= fifo_size)
831 		bound_pos = link_pos - mod_link_pos;
832 	else if (mod_dma_pos >= mod_mini_pos)
833 		bound_pos = mini_pos - mod_mini_pos;
834 	else {
835 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
836 		if (bound_pos >= azx_dev->core.bufsize)
837 			bound_pos = 0;
838 	}
839 
840 	/* Calculate real DMA position we want */
841 	return bound_pos + mod_dma_pos;
842 }
843 
844 #define AMD_FIFO_SIZE	32
845 
846 /* get the current DMA position with FIFO size correction */
847 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
848 {
849 	struct snd_pcm_substream *substream = azx_dev->core.substream;
850 	struct snd_pcm_runtime *runtime = substream->runtime;
851 	unsigned int pos, delay;
852 
853 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
854 	if (!runtime)
855 		return pos;
856 
857 	runtime->delay = AMD_FIFO_SIZE;
858 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
859 	if (azx_dev->insufficient) {
860 		if (pos < delay) {
861 			delay = pos;
862 			runtime->delay = bytes_to_frames(runtime, pos);
863 		} else {
864 			azx_dev->insufficient = 0;
865 		}
866 	}
867 
868 	/* correct the DMA position for capture stream */
869 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
870 		if (pos < delay)
871 			pos += azx_dev->core.bufsize;
872 		pos -= delay;
873 	}
874 
875 	return pos;
876 }
877 
878 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
879 				   unsigned int pos)
880 {
881 	struct snd_pcm_substream *substream = azx_dev->core.substream;
882 
883 	/* just read back the calculated value in the above */
884 	return substream->runtime->delay;
885 }
886 
887 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
888 {
889 	azx_stop_chip(chip);
890 	if (!skip_link_reset)
891 		azx_enter_link_reset(chip);
892 	azx_clear_irq_pending(chip);
893 	display_power(chip, false);
894 }
895 
896 #ifdef CONFIG_PM
897 static DEFINE_MUTEX(card_list_lock);
898 static LIST_HEAD(card_list);
899 
900 static void azx_shutdown_chip(struct azx *chip)
901 {
902 	__azx_shutdown_chip(chip, false);
903 }
904 
905 static void azx_add_card_list(struct azx *chip)
906 {
907 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
908 	mutex_lock(&card_list_lock);
909 	list_add(&hda->list, &card_list);
910 	mutex_unlock(&card_list_lock);
911 }
912 
913 static void azx_del_card_list(struct azx *chip)
914 {
915 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
916 	mutex_lock(&card_list_lock);
917 	list_del_init(&hda->list);
918 	mutex_unlock(&card_list_lock);
919 }
920 
921 /* trigger power-save check at writing parameter */
922 static int param_set_xint(const char *val, const struct kernel_param *kp)
923 {
924 	struct hda_intel *hda;
925 	struct azx *chip;
926 	int prev = power_save;
927 	int ret = param_set_int(val, kp);
928 
929 	if (ret || prev == power_save)
930 		return ret;
931 
932 	mutex_lock(&card_list_lock);
933 	list_for_each_entry(hda, &card_list, list) {
934 		chip = &hda->chip;
935 		if (!hda->probe_continued || chip->disabled)
936 			continue;
937 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
938 	}
939 	mutex_unlock(&card_list_lock);
940 	return 0;
941 }
942 
943 /*
944  * power management
945  */
946 static bool azx_is_pm_ready(struct snd_card *card)
947 {
948 	struct azx *chip;
949 	struct hda_intel *hda;
950 
951 	if (!card)
952 		return false;
953 	chip = card->private_data;
954 	hda = container_of(chip, struct hda_intel, chip);
955 	if (chip->disabled || hda->init_failed || !chip->running)
956 		return false;
957 	return true;
958 }
959 
960 static void __azx_runtime_resume(struct azx *chip)
961 {
962 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
963 	struct hdac_bus *bus = azx_bus(chip);
964 	struct hda_codec *codec;
965 	int status;
966 
967 	display_power(chip, true);
968 	if (hda->need_i915_power)
969 		snd_hdac_i915_set_bclk(bus);
970 
971 	/* Read STATESTS before controller reset */
972 	status = azx_readw(chip, STATESTS);
973 
974 	azx_init_pci(chip);
975 	hda_intel_init_chip(chip, true);
976 
977 	/* Avoid codec resume if runtime resume is for system suspend */
978 	if (!chip->pm_prepared) {
979 		list_for_each_codec(codec, &chip->bus) {
980 			if (codec->relaxed_resume)
981 				continue;
982 
983 			if (codec->forced_resume || (status & (1 << codec->addr)))
984 				pm_request_resume(hda_codec_dev(codec));
985 		}
986 	}
987 
988 	/* power down again for link-controlled chips */
989 	if (!hda->need_i915_power)
990 		display_power(chip, false);
991 }
992 
993 #ifdef CONFIG_PM_SLEEP
994 static int azx_prepare(struct device *dev)
995 {
996 	struct snd_card *card = dev_get_drvdata(dev);
997 	struct azx *chip;
998 
999 	if (!azx_is_pm_ready(card))
1000 		return 0;
1001 
1002 	chip = card->private_data;
1003 	chip->pm_prepared = 1;
1004 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1005 
1006 	flush_work(&azx_bus(chip)->unsol_work);
1007 
1008 	/* HDA controller always requires different WAKEEN for runtime suspend
1009 	 * and system suspend, so don't use direct-complete here.
1010 	 */
1011 	return 0;
1012 }
1013 
1014 static void azx_complete(struct device *dev)
1015 {
1016 	struct snd_card *card = dev_get_drvdata(dev);
1017 	struct azx *chip;
1018 
1019 	if (!azx_is_pm_ready(card))
1020 		return;
1021 
1022 	chip = card->private_data;
1023 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1024 	chip->pm_prepared = 0;
1025 }
1026 
1027 static int azx_suspend(struct device *dev)
1028 {
1029 	struct snd_card *card = dev_get_drvdata(dev);
1030 	struct azx *chip;
1031 	struct hdac_bus *bus;
1032 
1033 	if (!azx_is_pm_ready(card))
1034 		return 0;
1035 
1036 	chip = card->private_data;
1037 	bus = azx_bus(chip);
1038 	azx_shutdown_chip(chip);
1039 	if (bus->irq >= 0) {
1040 		free_irq(bus->irq, chip);
1041 		bus->irq = -1;
1042 		chip->card->sync_irq = -1;
1043 	}
1044 
1045 	if (chip->msi)
1046 		pci_disable_msi(chip->pci);
1047 
1048 	trace_azx_suspend(chip);
1049 	return 0;
1050 }
1051 
1052 static int azx_resume(struct device *dev)
1053 {
1054 	struct snd_card *card = dev_get_drvdata(dev);
1055 	struct azx *chip;
1056 
1057 	if (!azx_is_pm_ready(card))
1058 		return 0;
1059 
1060 	chip = card->private_data;
1061 	if (chip->msi)
1062 		if (pci_enable_msi(chip->pci) < 0)
1063 			chip->msi = 0;
1064 	if (azx_acquire_irq(chip, 1) < 0)
1065 		return -EIO;
1066 
1067 	__azx_runtime_resume(chip);
1068 
1069 	trace_azx_resume(chip);
1070 	return 0;
1071 }
1072 
1073 /* put codec down to D3 at hibernation for Intel SKL+;
1074  * otherwise BIOS may still access the codec and screw up the driver
1075  */
1076 static int azx_freeze_noirq(struct device *dev)
1077 {
1078 	struct snd_card *card = dev_get_drvdata(dev);
1079 	struct azx *chip = card->private_data;
1080 	struct pci_dev *pci = to_pci_dev(dev);
1081 
1082 	if (!azx_is_pm_ready(card))
1083 		return 0;
1084 	if (chip->driver_type == AZX_DRIVER_SKL)
1085 		pci_set_power_state(pci, PCI_D3hot);
1086 
1087 	return 0;
1088 }
1089 
1090 static int azx_thaw_noirq(struct device *dev)
1091 {
1092 	struct snd_card *card = dev_get_drvdata(dev);
1093 	struct azx *chip = card->private_data;
1094 	struct pci_dev *pci = to_pci_dev(dev);
1095 
1096 	if (!azx_is_pm_ready(card))
1097 		return 0;
1098 	if (chip->driver_type == AZX_DRIVER_SKL)
1099 		pci_set_power_state(pci, PCI_D0);
1100 
1101 	return 0;
1102 }
1103 #endif /* CONFIG_PM_SLEEP */
1104 
1105 static int azx_runtime_suspend(struct device *dev)
1106 {
1107 	struct snd_card *card = dev_get_drvdata(dev);
1108 	struct azx *chip;
1109 
1110 	if (!azx_is_pm_ready(card))
1111 		return 0;
1112 	chip = card->private_data;
1113 
1114 	/* enable controller wake up event */
1115 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1116 
1117 	azx_shutdown_chip(chip);
1118 	trace_azx_runtime_suspend(chip);
1119 	return 0;
1120 }
1121 
1122 static int azx_runtime_resume(struct device *dev)
1123 {
1124 	struct snd_card *card = dev_get_drvdata(dev);
1125 	struct azx *chip;
1126 
1127 	if (!azx_is_pm_ready(card))
1128 		return 0;
1129 	chip = card->private_data;
1130 	__azx_runtime_resume(chip);
1131 
1132 	/* disable controller Wake Up event*/
1133 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1134 
1135 	trace_azx_runtime_resume(chip);
1136 	return 0;
1137 }
1138 
1139 static int azx_runtime_idle(struct device *dev)
1140 {
1141 	struct snd_card *card = dev_get_drvdata(dev);
1142 	struct azx *chip;
1143 	struct hda_intel *hda;
1144 
1145 	if (!card)
1146 		return 0;
1147 
1148 	chip = card->private_data;
1149 	hda = container_of(chip, struct hda_intel, chip);
1150 	if (chip->disabled || hda->init_failed)
1151 		return 0;
1152 
1153 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1154 	    azx_bus(chip)->codec_powered || !chip->running)
1155 		return -EBUSY;
1156 
1157 	/* ELD notification gets broken when HD-audio bus is off */
1158 	if (needs_eld_notify_link(chip))
1159 		return -EBUSY;
1160 
1161 	return 0;
1162 }
1163 
1164 static const struct dev_pm_ops azx_pm = {
1165 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1166 #ifdef CONFIG_PM_SLEEP
1167 	.prepare = azx_prepare,
1168 	.complete = azx_complete,
1169 	.freeze_noirq = azx_freeze_noirq,
1170 	.thaw_noirq = azx_thaw_noirq,
1171 #endif
1172 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1173 };
1174 
1175 #define AZX_PM_OPS	&azx_pm
1176 #else
1177 #define azx_add_card_list(chip) /* NOP */
1178 #define azx_del_card_list(chip) /* NOP */
1179 #define AZX_PM_OPS	NULL
1180 #endif /* CONFIG_PM */
1181 
1182 
1183 static int azx_probe_continue(struct azx *chip);
1184 
1185 #ifdef SUPPORT_VGA_SWITCHEROO
1186 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1187 
1188 static void azx_vs_set_state(struct pci_dev *pci,
1189 			     enum vga_switcheroo_state state)
1190 {
1191 	struct snd_card *card = pci_get_drvdata(pci);
1192 	struct azx *chip = card->private_data;
1193 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1194 	struct hda_codec *codec;
1195 	bool disabled;
1196 
1197 	wait_for_completion(&hda->probe_wait);
1198 	if (hda->init_failed)
1199 		return;
1200 
1201 	disabled = (state == VGA_SWITCHEROO_OFF);
1202 	if (chip->disabled == disabled)
1203 		return;
1204 
1205 	if (!hda->probe_continued) {
1206 		chip->disabled = disabled;
1207 		if (!disabled) {
1208 			dev_info(chip->card->dev,
1209 				 "Start delayed initialization\n");
1210 			if (azx_probe_continue(chip) < 0)
1211 				dev_err(chip->card->dev, "initialization error\n");
1212 		}
1213 	} else {
1214 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1215 			 disabled ? "Disabling" : "Enabling");
1216 		if (disabled) {
1217 			list_for_each_codec(codec, &chip->bus) {
1218 				pm_runtime_suspend(hda_codec_dev(codec));
1219 				pm_runtime_disable(hda_codec_dev(codec));
1220 			}
1221 			pm_runtime_suspend(card->dev);
1222 			pm_runtime_disable(card->dev);
1223 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1224 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1225 			 * put ourselves there */
1226 			pci->current_state = PCI_D3cold;
1227 			chip->disabled = true;
1228 			if (snd_hda_lock_devices(&chip->bus))
1229 				dev_warn(chip->card->dev,
1230 					 "Cannot lock devices!\n");
1231 		} else {
1232 			snd_hda_unlock_devices(&chip->bus);
1233 			chip->disabled = false;
1234 			pm_runtime_enable(card->dev);
1235 			list_for_each_codec(codec, &chip->bus) {
1236 				pm_runtime_enable(hda_codec_dev(codec));
1237 				pm_runtime_resume(hda_codec_dev(codec));
1238 			}
1239 		}
1240 	}
1241 }
1242 
1243 static bool azx_vs_can_switch(struct pci_dev *pci)
1244 {
1245 	struct snd_card *card = pci_get_drvdata(pci);
1246 	struct azx *chip = card->private_data;
1247 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1248 
1249 	wait_for_completion(&hda->probe_wait);
1250 	if (hda->init_failed)
1251 		return false;
1252 	if (chip->disabled || !hda->probe_continued)
1253 		return true;
1254 	if (snd_hda_lock_devices(&chip->bus))
1255 		return false;
1256 	snd_hda_unlock_devices(&chip->bus);
1257 	return true;
1258 }
1259 
1260 /*
1261  * The discrete GPU cannot power down unless the HDA controller runtime
1262  * suspends, so activate runtime PM on codecs even if power_save == 0.
1263  */
1264 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1265 {
1266 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1267 	struct hda_codec *codec;
1268 
1269 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1270 		list_for_each_codec(codec, &chip->bus)
1271 			codec->auto_runtime_pm = 1;
1272 		/* reset the power save setup */
1273 		if (chip->running)
1274 			set_default_power_save(chip);
1275 	}
1276 }
1277 
1278 static void azx_vs_gpu_bound(struct pci_dev *pci,
1279 			     enum vga_switcheroo_client_id client_id)
1280 {
1281 	struct snd_card *card = pci_get_drvdata(pci);
1282 	struct azx *chip = card->private_data;
1283 
1284 	if (client_id == VGA_SWITCHEROO_DIS)
1285 		chip->bus.keep_power = 0;
1286 	setup_vga_switcheroo_runtime_pm(chip);
1287 }
1288 
1289 static void init_vga_switcheroo(struct azx *chip)
1290 {
1291 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1292 	struct pci_dev *p = get_bound_vga(chip->pci);
1293 	struct pci_dev *parent;
1294 	if (p) {
1295 		dev_info(chip->card->dev,
1296 			 "Handle vga_switcheroo audio client\n");
1297 		hda->use_vga_switcheroo = 1;
1298 
1299 		/* cleared in either gpu_bound op or codec probe, or when its
1300 		 * upstream port has _PR3 (i.e. dGPU).
1301 		 */
1302 		parent = pci_upstream_bridge(p);
1303 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1304 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1305 		pci_dev_put(p);
1306 	}
1307 }
1308 
1309 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1310 	.set_gpu_state = azx_vs_set_state,
1311 	.can_switch = azx_vs_can_switch,
1312 	.gpu_bound = azx_vs_gpu_bound,
1313 };
1314 
1315 static int register_vga_switcheroo(struct azx *chip)
1316 {
1317 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1318 	struct pci_dev *p;
1319 	int err;
1320 
1321 	if (!hda->use_vga_switcheroo)
1322 		return 0;
1323 
1324 	p = get_bound_vga(chip->pci);
1325 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1326 	pci_dev_put(p);
1327 
1328 	if (err < 0)
1329 		return err;
1330 	hda->vga_switcheroo_registered = 1;
1331 
1332 	return 0;
1333 }
1334 #else
1335 #define init_vga_switcheroo(chip)		/* NOP */
1336 #define register_vga_switcheroo(chip)		0
1337 #define check_hdmi_disabled(pci)	false
1338 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1339 #endif /* SUPPORT_VGA_SWITCHER */
1340 
1341 /*
1342  * destructor
1343  */
1344 static void azx_free(struct azx *chip)
1345 {
1346 	struct pci_dev *pci = chip->pci;
1347 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1348 	struct hdac_bus *bus = azx_bus(chip);
1349 
1350 	if (hda->freed)
1351 		return;
1352 
1353 	if (azx_has_pm_runtime(chip) && chip->running) {
1354 		pm_runtime_get_noresume(&pci->dev);
1355 		pm_runtime_forbid(&pci->dev);
1356 		pm_runtime_dont_use_autosuspend(&pci->dev);
1357 	}
1358 
1359 	chip->running = 0;
1360 
1361 	azx_del_card_list(chip);
1362 
1363 	hda->init_failed = 1; /* to be sure */
1364 	complete_all(&hda->probe_wait);
1365 
1366 	if (use_vga_switcheroo(hda)) {
1367 		if (chip->disabled && hda->probe_continued)
1368 			snd_hda_unlock_devices(&chip->bus);
1369 		if (hda->vga_switcheroo_registered)
1370 			vga_switcheroo_unregister_client(chip->pci);
1371 	}
1372 
1373 	if (bus->chip_init) {
1374 		azx_clear_irq_pending(chip);
1375 		azx_stop_all_streams(chip);
1376 		azx_stop_chip(chip);
1377 	}
1378 
1379 	if (bus->irq >= 0)
1380 		free_irq(bus->irq, (void*)chip);
1381 
1382 	azx_free_stream_pages(chip);
1383 	azx_free_streams(chip);
1384 	snd_hdac_bus_exit(bus);
1385 
1386 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1387 	release_firmware(chip->fw);
1388 #endif
1389 	display_power(chip, false);
1390 
1391 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1392 		snd_hdac_i915_exit(bus);
1393 
1394 	hda->freed = 1;
1395 }
1396 
1397 static int azx_dev_disconnect(struct snd_device *device)
1398 {
1399 	struct azx *chip = device->device_data;
1400 	struct hdac_bus *bus = azx_bus(chip);
1401 
1402 	chip->bus.shutdown = 1;
1403 	cancel_work_sync(&bus->unsol_work);
1404 
1405 	return 0;
1406 }
1407 
1408 static int azx_dev_free(struct snd_device *device)
1409 {
1410 	azx_free(device->device_data);
1411 	return 0;
1412 }
1413 
1414 #ifdef SUPPORT_VGA_SWITCHEROO
1415 #ifdef CONFIG_ACPI
1416 /* ATPX is in the integrated GPU's namespace */
1417 static bool atpx_present(void)
1418 {
1419 	struct pci_dev *pdev = NULL;
1420 	acpi_handle dhandle, atpx_handle;
1421 	acpi_status status;
1422 
1423 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1424 		dhandle = ACPI_HANDLE(&pdev->dev);
1425 		if (dhandle) {
1426 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1427 			if (ACPI_SUCCESS(status)) {
1428 				pci_dev_put(pdev);
1429 				return true;
1430 			}
1431 		}
1432 	}
1433 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1434 		dhandle = ACPI_HANDLE(&pdev->dev);
1435 		if (dhandle) {
1436 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1437 			if (ACPI_SUCCESS(status)) {
1438 				pci_dev_put(pdev);
1439 				return true;
1440 			}
1441 		}
1442 	}
1443 	return false;
1444 }
1445 #else
1446 static bool atpx_present(void)
1447 {
1448 	return false;
1449 }
1450 #endif
1451 
1452 /*
1453  * Check of disabled HDMI controller by vga_switcheroo
1454  */
1455 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1456 {
1457 	struct pci_dev *p;
1458 
1459 	/* check only discrete GPU */
1460 	switch (pci->vendor) {
1461 	case PCI_VENDOR_ID_ATI:
1462 	case PCI_VENDOR_ID_AMD:
1463 		if (pci->devfn == 1) {
1464 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1465 							pci->bus->number, 0);
1466 			if (p) {
1467 				/* ATPX is in the integrated GPU's ACPI namespace
1468 				 * rather than the dGPU's namespace. However,
1469 				 * the dGPU is the one who is involved in
1470 				 * vgaswitcheroo.
1471 				 */
1472 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1473 				    atpx_present())
1474 					return p;
1475 				pci_dev_put(p);
1476 			}
1477 		}
1478 		break;
1479 	case PCI_VENDOR_ID_NVIDIA:
1480 		if (pci->devfn == 1) {
1481 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1482 							pci->bus->number, 0);
1483 			if (p) {
1484 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1485 					return p;
1486 				pci_dev_put(p);
1487 			}
1488 		}
1489 		break;
1490 	}
1491 	return NULL;
1492 }
1493 
1494 static bool check_hdmi_disabled(struct pci_dev *pci)
1495 {
1496 	bool vga_inactive = false;
1497 	struct pci_dev *p = get_bound_vga(pci);
1498 
1499 	if (p) {
1500 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1501 			vga_inactive = true;
1502 		pci_dev_put(p);
1503 	}
1504 	return vga_inactive;
1505 }
1506 #endif /* SUPPORT_VGA_SWITCHEROO */
1507 
1508 /*
1509  * allow/deny-listing for position_fix
1510  */
1511 static const struct snd_pci_quirk position_fix_list[] = {
1512 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1514 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1519 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1520 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1521 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1522 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1523 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1524 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1525 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1526 	{}
1527 };
1528 
1529 static int check_position_fix(struct azx *chip, int fix)
1530 {
1531 	const struct snd_pci_quirk *q;
1532 
1533 	switch (fix) {
1534 	case POS_FIX_AUTO:
1535 	case POS_FIX_LPIB:
1536 	case POS_FIX_POSBUF:
1537 	case POS_FIX_VIACOMBO:
1538 	case POS_FIX_COMBO:
1539 	case POS_FIX_SKL:
1540 	case POS_FIX_FIFO:
1541 		return fix;
1542 	}
1543 
1544 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1545 	if (q) {
1546 		dev_info(chip->card->dev,
1547 			 "position_fix set to %d for device %04x:%04x\n",
1548 			 q->value, q->subvendor, q->subdevice);
1549 		return q->value;
1550 	}
1551 
1552 	/* Check VIA/ATI HD Audio Controller exist */
1553 	if (chip->driver_type == AZX_DRIVER_VIA) {
1554 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1555 		return POS_FIX_VIACOMBO;
1556 	}
1557 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1558 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1559 		return POS_FIX_FIFO;
1560 	}
1561 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1562 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1563 		return POS_FIX_LPIB;
1564 	}
1565 	if (chip->driver_type == AZX_DRIVER_SKL) {
1566 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1567 		return POS_FIX_SKL;
1568 	}
1569 	return POS_FIX_AUTO;
1570 }
1571 
1572 static void assign_position_fix(struct azx *chip, int fix)
1573 {
1574 	static const azx_get_pos_callback_t callbacks[] = {
1575 		[POS_FIX_AUTO] = NULL,
1576 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1577 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1578 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1579 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1580 		[POS_FIX_SKL] = azx_get_pos_posbuf,
1581 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1582 	};
1583 
1584 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1585 
1586 	/* combo mode uses LPIB only for playback */
1587 	if (fix == POS_FIX_COMBO)
1588 		chip->get_position[1] = NULL;
1589 
1590 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1591 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1592 		chip->get_delay[0] = chip->get_delay[1] =
1593 			azx_get_delay_from_lpib;
1594 	}
1595 
1596 	if (fix == POS_FIX_FIFO)
1597 		chip->get_delay[0] = chip->get_delay[1] =
1598 			azx_get_delay_from_fifo;
1599 }
1600 
1601 /*
1602  * deny-lists for probe_mask
1603  */
1604 static const struct snd_pci_quirk probe_mask_list[] = {
1605 	/* Thinkpad often breaks the controller communication when accessing
1606 	 * to the non-working (or non-existing) modem codec slot.
1607 	 */
1608 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1609 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1610 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1611 	/* broken BIOS */
1612 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1613 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1614 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1615 	/* forced codec slots */
1616 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1617 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1618 	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1619 	/* WinFast VP200 H (Teradici) user reported broken communication */
1620 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1621 	{}
1622 };
1623 
1624 #define AZX_FORCE_CODEC_MASK	0x100
1625 
1626 static void check_probe_mask(struct azx *chip, int dev)
1627 {
1628 	const struct snd_pci_quirk *q;
1629 
1630 	chip->codec_probe_mask = probe_mask[dev];
1631 	if (chip->codec_probe_mask == -1) {
1632 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1633 		if (q) {
1634 			dev_info(chip->card->dev,
1635 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1636 				 q->value, q->subvendor, q->subdevice);
1637 			chip->codec_probe_mask = q->value;
1638 		}
1639 	}
1640 
1641 	/* check forced option */
1642 	if (chip->codec_probe_mask != -1 &&
1643 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1644 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1645 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1646 			 (int)azx_bus(chip)->codec_mask);
1647 	}
1648 }
1649 
1650 /*
1651  * allow/deny-list for enable_msi
1652  */
1653 static const struct snd_pci_quirk msi_deny_list[] = {
1654 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1655 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1656 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1657 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1658 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1659 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1660 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1661 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1662 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1663 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1664 	{}
1665 };
1666 
1667 static void check_msi(struct azx *chip)
1668 {
1669 	const struct snd_pci_quirk *q;
1670 
1671 	if (enable_msi >= 0) {
1672 		chip->msi = !!enable_msi;
1673 		return;
1674 	}
1675 	chip->msi = 1;	/* enable MSI as default */
1676 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1677 	if (q) {
1678 		dev_info(chip->card->dev,
1679 			 "msi for device %04x:%04x set to %d\n",
1680 			 q->subvendor, q->subdevice, q->value);
1681 		chip->msi = q->value;
1682 		return;
1683 	}
1684 
1685 	/* NVidia chipsets seem to cause troubles with MSI */
1686 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1687 		dev_info(chip->card->dev, "Disabling MSI\n");
1688 		chip->msi = 0;
1689 	}
1690 }
1691 
1692 /* check the snoop mode availability */
1693 static void azx_check_snoop_available(struct azx *chip)
1694 {
1695 	int snoop = hda_snoop;
1696 
1697 	if (snoop >= 0) {
1698 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1699 			 snoop ? "snoop" : "non-snoop");
1700 		chip->snoop = snoop;
1701 		chip->uc_buffer = !snoop;
1702 		return;
1703 	}
1704 
1705 	snoop = true;
1706 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1707 	    chip->driver_type == AZX_DRIVER_VIA) {
1708 		/* force to non-snoop mode for a new VIA controller
1709 		 * when BIOS is set
1710 		 */
1711 		u8 val;
1712 		pci_read_config_byte(chip->pci, 0x42, &val);
1713 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1714 				      chip->pci->revision == 0x20))
1715 			snoop = false;
1716 	}
1717 
1718 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1719 		snoop = false;
1720 
1721 	chip->snoop = snoop;
1722 	if (!snoop) {
1723 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1724 		/* C-Media requires non-cached pages only for CORB/RIRB */
1725 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1726 			chip->uc_buffer = true;
1727 	}
1728 }
1729 
1730 static void azx_probe_work(struct work_struct *work)
1731 {
1732 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1733 	azx_probe_continue(&hda->chip);
1734 }
1735 
1736 static int default_bdl_pos_adj(struct azx *chip)
1737 {
1738 	/* some exceptions: Atoms seem problematic with value 1 */
1739 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1740 		switch (chip->pci->device) {
1741 		case 0x0f04: /* Baytrail */
1742 		case 0x2284: /* Braswell */
1743 			return 32;
1744 		}
1745 	}
1746 
1747 	switch (chip->driver_type) {
1748 	case AZX_DRIVER_ICH:
1749 	case AZX_DRIVER_PCH:
1750 		return 1;
1751 	default:
1752 		return 32;
1753 	}
1754 }
1755 
1756 /*
1757  * constructor
1758  */
1759 static const struct hda_controller_ops pci_hda_ops;
1760 
1761 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1762 		      int dev, unsigned int driver_caps,
1763 		      struct azx **rchip)
1764 {
1765 	static const struct snd_device_ops ops = {
1766 		.dev_disconnect = azx_dev_disconnect,
1767 		.dev_free = azx_dev_free,
1768 	};
1769 	struct hda_intel *hda;
1770 	struct azx *chip;
1771 	int err;
1772 
1773 	*rchip = NULL;
1774 
1775 	err = pcim_enable_device(pci);
1776 	if (err < 0)
1777 		return err;
1778 
1779 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1780 	if (!hda)
1781 		return -ENOMEM;
1782 
1783 	chip = &hda->chip;
1784 	mutex_init(&chip->open_mutex);
1785 	chip->card = card;
1786 	chip->pci = pci;
1787 	chip->ops = &pci_hda_ops;
1788 	chip->driver_caps = driver_caps;
1789 	chip->driver_type = driver_caps & 0xff;
1790 	check_msi(chip);
1791 	chip->dev_index = dev;
1792 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1793 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1794 	INIT_LIST_HEAD(&chip->pcm_list);
1795 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1796 	INIT_LIST_HEAD(&hda->list);
1797 	init_vga_switcheroo(chip);
1798 	init_completion(&hda->probe_wait);
1799 
1800 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1801 
1802 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1803 		chip->fallback_to_single_cmd = 1;
1804 	else /* explicitly set to single_cmd or not */
1805 		chip->single_cmd = single_cmd;
1806 
1807 	azx_check_snoop_available(chip);
1808 
1809 	if (bdl_pos_adj[dev] < 0)
1810 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1811 	else
1812 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1813 
1814 	err = azx_bus_init(chip, model[dev]);
1815 	if (err < 0)
1816 		return err;
1817 
1818 	/* use the non-cached pages in non-snoop mode */
1819 	if (!azx_snoop(chip))
1820 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC;
1821 
1822 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1823 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1824 		chip->bus.core.needs_damn_long_delay = 1;
1825 	}
1826 
1827 	check_probe_mask(chip, dev);
1828 
1829 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1830 	if (err < 0) {
1831 		dev_err(card->dev, "Error creating device [card]!\n");
1832 		azx_free(chip);
1833 		return err;
1834 	}
1835 
1836 	/* continue probing in work context as may trigger request module */
1837 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1838 
1839 	*rchip = chip;
1840 
1841 	return 0;
1842 }
1843 
1844 static int azx_first_init(struct azx *chip)
1845 {
1846 	int dev = chip->dev_index;
1847 	struct pci_dev *pci = chip->pci;
1848 	struct snd_card *card = chip->card;
1849 	struct hdac_bus *bus = azx_bus(chip);
1850 	int err;
1851 	unsigned short gcap;
1852 	unsigned int dma_bits = 64;
1853 
1854 #if BITS_PER_LONG != 64
1855 	/* Fix up base address on ULI M5461 */
1856 	if (chip->driver_type == AZX_DRIVER_ULI) {
1857 		u16 tmp3;
1858 		pci_read_config_word(pci, 0x40, &tmp3);
1859 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1860 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1861 	}
1862 #endif
1863 
1864 	err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");
1865 	if (err < 0)
1866 		return err;
1867 
1868 	bus->addr = pci_resource_start(pci, 0);
1869 	bus->remap_addr = pcim_iomap_table(pci)[0];
1870 
1871 	if (chip->driver_type == AZX_DRIVER_SKL)
1872 		snd_hdac_bus_parse_capabilities(bus);
1873 
1874 	/*
1875 	 * Some Intel CPUs has always running timer (ART) feature and
1876 	 * controller may have Global time sync reporting capability, so
1877 	 * check both of these before declaring synchronized time reporting
1878 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1879 	 */
1880 	chip->gts_present = false;
1881 
1882 #ifdef CONFIG_X86
1883 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1884 		chip->gts_present = true;
1885 #endif
1886 
1887 	if (chip->msi) {
1888 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1889 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1890 			pci->no_64bit_msi = true;
1891 		}
1892 		if (pci_enable_msi(pci) < 0)
1893 			chip->msi = 0;
1894 	}
1895 
1896 	pci_set_master(pci);
1897 
1898 	gcap = azx_readw(chip, GCAP);
1899 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1900 
1901 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1902 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1903 		dma_bits = 40;
1904 
1905 	/* disable SB600 64bit support for safety */
1906 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1907 		struct pci_dev *p_smbus;
1908 		dma_bits = 40;
1909 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1910 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1911 					 NULL);
1912 		if (p_smbus) {
1913 			if (p_smbus->revision < 0x30)
1914 				gcap &= ~AZX_GCAP_64OK;
1915 			pci_dev_put(p_smbus);
1916 		}
1917 	}
1918 
1919 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1920 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1921 		dma_bits = 40;
1922 
1923 	/* disable 64bit DMA address on some devices */
1924 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1925 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1926 		gcap &= ~AZX_GCAP_64OK;
1927 	}
1928 
1929 	/* disable buffer size rounding to 128-byte multiples if supported */
1930 	if (align_buffer_size >= 0)
1931 		chip->align_buffer_size = !!align_buffer_size;
1932 	else {
1933 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1934 			chip->align_buffer_size = 0;
1935 		else
1936 			chip->align_buffer_size = 1;
1937 	}
1938 
1939 	/* allow 64bit DMA address if supported by H/W */
1940 	if (!(gcap & AZX_GCAP_64OK))
1941 		dma_bits = 32;
1942 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1943 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1944 	dma_set_max_seg_size(&pci->dev, UINT_MAX);
1945 
1946 	/* read number of streams from GCAP register instead of using
1947 	 * hardcoded value
1948 	 */
1949 	chip->capture_streams = (gcap >> 8) & 0x0f;
1950 	chip->playback_streams = (gcap >> 12) & 0x0f;
1951 	if (!chip->playback_streams && !chip->capture_streams) {
1952 		/* gcap didn't give any info, switching to old method */
1953 
1954 		switch (chip->driver_type) {
1955 		case AZX_DRIVER_ULI:
1956 			chip->playback_streams = ULI_NUM_PLAYBACK;
1957 			chip->capture_streams = ULI_NUM_CAPTURE;
1958 			break;
1959 		case AZX_DRIVER_ATIHDMI:
1960 		case AZX_DRIVER_ATIHDMI_NS:
1961 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1962 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1963 			break;
1964 		case AZX_DRIVER_GENERIC:
1965 		default:
1966 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1967 			chip->capture_streams = ICH6_NUM_CAPTURE;
1968 			break;
1969 		}
1970 	}
1971 	chip->capture_index_offset = 0;
1972 	chip->playback_index_offset = chip->capture_streams;
1973 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1974 
1975 	/* sanity check for the SDxCTL.STRM field overflow */
1976 	if (chip->num_streams > 15 &&
1977 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1978 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1979 			 "forcing separate stream tags", chip->num_streams);
1980 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1981 	}
1982 
1983 	/* initialize streams */
1984 	err = azx_init_streams(chip);
1985 	if (err < 0)
1986 		return err;
1987 
1988 	err = azx_alloc_stream_pages(chip);
1989 	if (err < 0)
1990 		return err;
1991 
1992 	/* initialize chip */
1993 	azx_init_pci(chip);
1994 
1995 	snd_hdac_i915_set_bclk(bus);
1996 
1997 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1998 
1999 	/* codec detection */
2000 	if (!azx_bus(chip)->codec_mask) {
2001 		dev_err(card->dev, "no codecs found!\n");
2002 		/* keep running the rest for the runtime PM */
2003 	}
2004 
2005 	if (azx_acquire_irq(chip, 0) < 0)
2006 		return -EBUSY;
2007 
2008 	strcpy(card->driver, "HDA-Intel");
2009 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2010 		sizeof(card->shortname));
2011 	snprintf(card->longname, sizeof(card->longname),
2012 		 "%s at 0x%lx irq %i",
2013 		 card->shortname, bus->addr, bus->irq);
2014 
2015 	return 0;
2016 }
2017 
2018 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2019 /* callback from request_firmware_nowait() */
2020 static void azx_firmware_cb(const struct firmware *fw, void *context)
2021 {
2022 	struct snd_card *card = context;
2023 	struct azx *chip = card->private_data;
2024 
2025 	if (fw)
2026 		chip->fw = fw;
2027 	else
2028 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2029 	if (!chip->disabled) {
2030 		/* continue probing */
2031 		azx_probe_continue(chip);
2032 	}
2033 }
2034 #endif
2035 
2036 static int disable_msi_reset_irq(struct azx *chip)
2037 {
2038 	struct hdac_bus *bus = azx_bus(chip);
2039 	int err;
2040 
2041 	free_irq(bus->irq, chip);
2042 	bus->irq = -1;
2043 	chip->card->sync_irq = -1;
2044 	pci_disable_msi(chip->pci);
2045 	chip->msi = 0;
2046 	err = azx_acquire_irq(chip, 1);
2047 	if (err < 0)
2048 		return err;
2049 
2050 	return 0;
2051 }
2052 
2053 /* Denylist for skipping the whole probe:
2054  * some HD-audio PCI entries are exposed without any codecs, and such devices
2055  * should be ignored from the beginning.
2056  */
2057 static const struct pci_device_id driver_denylist[] = {
2058 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2059 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2060 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2061 	{}
2062 };
2063 
2064 static const struct hda_controller_ops pci_hda_ops = {
2065 	.disable_msi_reset_irq = disable_msi_reset_irq,
2066 	.position_check = azx_position_check,
2067 };
2068 
2069 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2070 
2071 static int azx_probe(struct pci_dev *pci,
2072 		     const struct pci_device_id *pci_id)
2073 {
2074 	struct snd_card *card;
2075 	struct hda_intel *hda;
2076 	struct azx *chip;
2077 	bool schedule_probe;
2078 	int dev;
2079 	int err;
2080 
2081 	if (pci_match_id(driver_denylist, pci)) {
2082 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2083 		return -ENODEV;
2084 	}
2085 
2086 	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2087 	if (dev >= SNDRV_CARDS)
2088 		return -ENODEV;
2089 	if (!enable[dev]) {
2090 		set_bit(dev, probed_devs);
2091 		return -ENOENT;
2092 	}
2093 
2094 	/*
2095 	 * stop probe if another Intel's DSP driver should be activated
2096 	 */
2097 	if (dmic_detect) {
2098 		err = snd_intel_dsp_driver_probe(pci);
2099 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2100 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2101 			return -ENODEV;
2102 		}
2103 	} else {
2104 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2105 	}
2106 
2107 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2108 			   0, &card);
2109 	if (err < 0) {
2110 		dev_err(&pci->dev, "Error creating card!\n");
2111 		return err;
2112 	}
2113 
2114 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2115 	if (err < 0)
2116 		goto out_free;
2117 	card->private_data = chip;
2118 	hda = container_of(chip, struct hda_intel, chip);
2119 
2120 	pci_set_drvdata(pci, card);
2121 
2122 	err = register_vga_switcheroo(chip);
2123 	if (err < 0) {
2124 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2125 		goto out_free;
2126 	}
2127 
2128 	if (check_hdmi_disabled(pci)) {
2129 		dev_info(card->dev, "VGA controller is disabled\n");
2130 		dev_info(card->dev, "Delaying initialization\n");
2131 		chip->disabled = true;
2132 	}
2133 
2134 	schedule_probe = !chip->disabled;
2135 
2136 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2137 	if (patch[dev] && *patch[dev]) {
2138 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2139 			 patch[dev]);
2140 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2141 					      &pci->dev, GFP_KERNEL, card,
2142 					      azx_firmware_cb);
2143 		if (err < 0)
2144 			goto out_free;
2145 		schedule_probe = false; /* continued in azx_firmware_cb() */
2146 	}
2147 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2148 
2149 #ifndef CONFIG_SND_HDA_I915
2150 	if (CONTROLLER_IN_GPU(pci))
2151 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2152 #endif
2153 
2154 	if (schedule_probe)
2155 		schedule_delayed_work(&hda->probe_work, 0);
2156 
2157 	set_bit(dev, probed_devs);
2158 	if (chip->disabled)
2159 		complete_all(&hda->probe_wait);
2160 	return 0;
2161 
2162 out_free:
2163 	snd_card_free(card);
2164 	return err;
2165 }
2166 
2167 #ifdef CONFIG_PM
2168 /* On some boards setting power_save to a non 0 value leads to clicking /
2169  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2170  * figure out how to avoid these sounds, but that is not always feasible.
2171  * So we keep a list of devices where we disable powersaving as its known
2172  * to causes problems on these devices.
2173  */
2174 static const struct snd_pci_quirk power_save_denylist[] = {
2175 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2176 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2177 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2178 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2179 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2180 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2181 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2182 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2183 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2184 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2185 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2186 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2187 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2188 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2189 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2190 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2191 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2192 	/* https://bugs.launchpad.net/bugs/1821663 */
2193 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2194 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2195 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2196 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2197 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2198 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2199 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2200 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2201 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2202 	/* https://bugs.launchpad.net/bugs/1821663 */
2203 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2204 	{}
2205 };
2206 #endif /* CONFIG_PM */
2207 
2208 static void set_default_power_save(struct azx *chip)
2209 {
2210 	int val = power_save;
2211 
2212 #ifdef CONFIG_PM
2213 	if (pm_blacklist) {
2214 		const struct snd_pci_quirk *q;
2215 
2216 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2217 		if (q && val) {
2218 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2219 				 q->subvendor, q->subdevice);
2220 			val = 0;
2221 		}
2222 	}
2223 #endif /* CONFIG_PM */
2224 	snd_hda_set_power_save(&chip->bus, val * 1000);
2225 }
2226 
2227 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2228 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2229 	[AZX_DRIVER_NVIDIA] = 8,
2230 	[AZX_DRIVER_TERA] = 1,
2231 };
2232 
2233 static int azx_probe_continue(struct azx *chip)
2234 {
2235 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2236 	struct hdac_bus *bus = azx_bus(chip);
2237 	struct pci_dev *pci = chip->pci;
2238 	int dev = chip->dev_index;
2239 	int err;
2240 
2241 	if (chip->disabled || hda->init_failed)
2242 		return -EIO;
2243 	if (hda->probe_retry)
2244 		goto probe_retry;
2245 
2246 	to_hda_bus(bus)->bus_probing = 1;
2247 	hda->probe_continued = 1;
2248 
2249 	/* bind with i915 if needed */
2250 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2251 		err = snd_hdac_i915_init(bus);
2252 		if (err < 0) {
2253 			/* if the controller is bound only with HDMI/DP
2254 			 * (for HSW and BDW), we need to abort the probe;
2255 			 * for other chips, still continue probing as other
2256 			 * codecs can be on the same link.
2257 			 */
2258 			if (CONTROLLER_IN_GPU(pci)) {
2259 				dev_err(chip->card->dev,
2260 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2261 				goto out_free;
2262 			} else {
2263 				/* don't bother any longer */
2264 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2265 			}
2266 		}
2267 
2268 		/* HSW/BDW controllers need this power */
2269 		if (CONTROLLER_IN_GPU(pci))
2270 			hda->need_i915_power = true;
2271 	}
2272 
2273 	/* Request display power well for the HDA controller or codec. For
2274 	 * Haswell/Broadwell, both the display HDA controller and codec need
2275 	 * this power. For other platforms, like Baytrail/Braswell, only the
2276 	 * display codec needs the power and it can be released after probe.
2277 	 */
2278 	display_power(chip, true);
2279 
2280 	err = azx_first_init(chip);
2281 	if (err < 0)
2282 		goto out_free;
2283 
2284 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2285 	chip->beep_mode = beep_mode[dev];
2286 #endif
2287 
2288 	/* create codec instances */
2289 	if (bus->codec_mask) {
2290 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2291 		if (err < 0)
2292 			goto out_free;
2293 	}
2294 
2295 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2296 	if (chip->fw) {
2297 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2298 					 chip->fw->data);
2299 		if (err < 0)
2300 			goto out_free;
2301 #ifndef CONFIG_PM
2302 		release_firmware(chip->fw); /* no longer needed */
2303 		chip->fw = NULL;
2304 #endif
2305 	}
2306 #endif
2307 
2308  probe_retry:
2309 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2310 		err = azx_codec_configure(chip);
2311 		if (err) {
2312 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2313 			    ++hda->probe_retry < 60) {
2314 				schedule_delayed_work(&hda->probe_work,
2315 						      msecs_to_jiffies(1000));
2316 				return 0; /* keep things up */
2317 			}
2318 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2319 			goto out_free;
2320 		}
2321 	}
2322 
2323 	err = snd_card_register(chip->card);
2324 	if (err < 0)
2325 		goto out_free;
2326 
2327 	setup_vga_switcheroo_runtime_pm(chip);
2328 
2329 	chip->running = 1;
2330 	azx_add_card_list(chip);
2331 
2332 	set_default_power_save(chip);
2333 
2334 	if (azx_has_pm_runtime(chip)) {
2335 		pm_runtime_use_autosuspend(&pci->dev);
2336 		pm_runtime_allow(&pci->dev);
2337 		pm_runtime_put_autosuspend(&pci->dev);
2338 	}
2339 
2340 out_free:
2341 	if (err < 0) {
2342 		pci_set_drvdata(pci, NULL);
2343 		snd_card_free(chip->card);
2344 		return err;
2345 	}
2346 
2347 	if (!hda->need_i915_power)
2348 		display_power(chip, false);
2349 	complete_all(&hda->probe_wait);
2350 	to_hda_bus(bus)->bus_probing = 0;
2351 	hda->probe_retry = 0;
2352 	return 0;
2353 }
2354 
2355 static void azx_remove(struct pci_dev *pci)
2356 {
2357 	struct snd_card *card = pci_get_drvdata(pci);
2358 	struct azx *chip;
2359 	struct hda_intel *hda;
2360 
2361 	if (card) {
2362 		/* cancel the pending probing work */
2363 		chip = card->private_data;
2364 		hda = container_of(chip, struct hda_intel, chip);
2365 		/* FIXME: below is an ugly workaround.
2366 		 * Both device_release_driver() and driver_probe_device()
2367 		 * take *both* the device's and its parent's lock before
2368 		 * calling the remove() and probe() callbacks.  The codec
2369 		 * probe takes the locks of both the codec itself and its
2370 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2371 		 * the PCI controller is unbound, it takes its lock, too
2372 		 * ==> ouch, a deadlock!
2373 		 * As a workaround, we unlock temporarily here the controller
2374 		 * device during cancel_work_sync() call.
2375 		 */
2376 		device_unlock(&pci->dev);
2377 		cancel_delayed_work_sync(&hda->probe_work);
2378 		device_lock(&pci->dev);
2379 
2380 		clear_bit(chip->dev_index, probed_devs);
2381 		pci_set_drvdata(pci, NULL);
2382 		snd_card_free(card);
2383 	}
2384 }
2385 
2386 static void azx_shutdown(struct pci_dev *pci)
2387 {
2388 	struct snd_card *card = pci_get_drvdata(pci);
2389 	struct azx *chip;
2390 
2391 	if (!card)
2392 		return;
2393 	chip = card->private_data;
2394 	if (chip && chip->running)
2395 		__azx_shutdown_chip(chip, true);
2396 }
2397 
2398 /* PCI IDs */
2399 static const struct pci_device_id azx_ids[] = {
2400 	/* CPT */
2401 	{ PCI_DEVICE(0x8086, 0x1c20),
2402 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2403 	/* PBG */
2404 	{ PCI_DEVICE(0x8086, 0x1d20),
2405 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2406 	/* Panther Point */
2407 	{ PCI_DEVICE(0x8086, 0x1e20),
2408 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2409 	/* Lynx Point */
2410 	{ PCI_DEVICE(0x8086, 0x8c20),
2411 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2412 	/* 9 Series */
2413 	{ PCI_DEVICE(0x8086, 0x8ca0),
2414 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2415 	/* Wellsburg */
2416 	{ PCI_DEVICE(0x8086, 0x8d20),
2417 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2418 	{ PCI_DEVICE(0x8086, 0x8d21),
2419 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2420 	/* Lewisburg */
2421 	{ PCI_DEVICE(0x8086, 0xa1f0),
2422 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2423 	{ PCI_DEVICE(0x8086, 0xa270),
2424 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2425 	/* Lynx Point-LP */
2426 	{ PCI_DEVICE(0x8086, 0x9c20),
2427 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2428 	/* Lynx Point-LP */
2429 	{ PCI_DEVICE(0x8086, 0x9c21),
2430 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2431 	/* Wildcat Point-LP */
2432 	{ PCI_DEVICE(0x8086, 0x9ca0),
2433 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2434 	/* Sunrise Point */
2435 	{ PCI_DEVICE(0x8086, 0xa170),
2436 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2437 	/* Sunrise Point-LP */
2438 	{ PCI_DEVICE(0x8086, 0x9d70),
2439 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2440 	/* Kabylake */
2441 	{ PCI_DEVICE(0x8086, 0xa171),
2442 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2443 	/* Kabylake-LP */
2444 	{ PCI_DEVICE(0x8086, 0x9d71),
2445 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2446 	/* Kabylake-H */
2447 	{ PCI_DEVICE(0x8086, 0xa2f0),
2448 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2449 	/* Coffelake */
2450 	{ PCI_DEVICE(0x8086, 0xa348),
2451 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2452 	/* Cannonlake */
2453 	{ PCI_DEVICE(0x8086, 0x9dc8),
2454 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2455 	/* CometLake-LP */
2456 	{ PCI_DEVICE(0x8086, 0x02C8),
2457 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2458 	/* CometLake-H */
2459 	{ PCI_DEVICE(0x8086, 0x06C8),
2460 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2461 	{ PCI_DEVICE(0x8086, 0xf1c8),
2462 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2463 	/* CometLake-S */
2464 	{ PCI_DEVICE(0x8086, 0xa3f0),
2465 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2466 	/* CometLake-R */
2467 	{ PCI_DEVICE(0x8086, 0xf0c8),
2468 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2469 	/* Icelake */
2470 	{ PCI_DEVICE(0x8086, 0x34c8),
2471 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2472 	/* Icelake-H */
2473 	{ PCI_DEVICE(0x8086, 0x3dc8),
2474 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2475 	/* Jasperlake */
2476 	{ PCI_DEVICE(0x8086, 0x38c8),
2477 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2478 	{ PCI_DEVICE(0x8086, 0x4dc8),
2479 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2480 	/* Tigerlake */
2481 	{ PCI_DEVICE(0x8086, 0xa0c8),
2482 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2483 	/* Tigerlake-H */
2484 	{ PCI_DEVICE(0x8086, 0x43c8),
2485 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2486 	/* DG1 */
2487 	{ PCI_DEVICE(0x8086, 0x490d),
2488 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2489 	/* DG2 */
2490 	{ PCI_DEVICE(0x8086, 0x4f90),
2491 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2492 	{ PCI_DEVICE(0x8086, 0x4f91),
2493 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2494 	{ PCI_DEVICE(0x8086, 0x4f92),
2495 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2496 	/* Alderlake-S */
2497 	{ PCI_DEVICE(0x8086, 0x7ad0),
2498 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2499 	/* Alderlake-P */
2500 	{ PCI_DEVICE(0x8086, 0x51c8),
2501 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2502 	{ PCI_DEVICE(0x8086, 0x51c9),
2503 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2504 	{ PCI_DEVICE(0x8086, 0x51cd),
2505 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2506 	/* Alderlake-M */
2507 	{ PCI_DEVICE(0x8086, 0x51cc),
2508 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2509 	/* Alderlake-N */
2510 	{ PCI_DEVICE(0x8086, 0x54c8),
2511 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2512 	/* Elkhart Lake */
2513 	{ PCI_DEVICE(0x8086, 0x4b55),
2514 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2515 	{ PCI_DEVICE(0x8086, 0x4b58),
2516 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2517 	/* Raptor Lake */
2518 	{ PCI_DEVICE(0x8086, 0x7a50),
2519 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2520 	{ PCI_DEVICE(0x8086, 0x51ca),
2521 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2522 	{ PCI_DEVICE(0x8086, 0x51cb),
2523 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2524 	{ PCI_DEVICE(0x8086, 0x51ce),
2525 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2526 	{ PCI_DEVICE(0x8086, 0x51cf),
2527 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2528 	/* Meteorlake-P */
2529 	{ PCI_DEVICE(0x8086, 0x7e28),
2530 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2531 	/* Broxton-P(Apollolake) */
2532 	{ PCI_DEVICE(0x8086, 0x5a98),
2533 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2534 	/* Broxton-T */
2535 	{ PCI_DEVICE(0x8086, 0x1a98),
2536 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2537 	/* Gemini-Lake */
2538 	{ PCI_DEVICE(0x8086, 0x3198),
2539 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2540 	/* Haswell */
2541 	{ PCI_DEVICE(0x8086, 0x0a0c),
2542 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2543 	{ PCI_DEVICE(0x8086, 0x0c0c),
2544 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2545 	{ PCI_DEVICE(0x8086, 0x0d0c),
2546 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2547 	/* Broadwell */
2548 	{ PCI_DEVICE(0x8086, 0x160c),
2549 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2550 	/* 5 Series/3400 */
2551 	{ PCI_DEVICE(0x8086, 0x3b56),
2552 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2553 	/* Poulsbo */
2554 	{ PCI_DEVICE(0x8086, 0x811b),
2555 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2556 	/* Oaktrail */
2557 	{ PCI_DEVICE(0x8086, 0x080a),
2558 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2559 	/* BayTrail */
2560 	{ PCI_DEVICE(0x8086, 0x0f04),
2561 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2562 	/* Braswell */
2563 	{ PCI_DEVICE(0x8086, 0x2284),
2564 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2565 	/* ICH6 */
2566 	{ PCI_DEVICE(0x8086, 0x2668),
2567 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2568 	/* ICH7 */
2569 	{ PCI_DEVICE(0x8086, 0x27d8),
2570 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2571 	/* ESB2 */
2572 	{ PCI_DEVICE(0x8086, 0x269a),
2573 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2574 	/* ICH8 */
2575 	{ PCI_DEVICE(0x8086, 0x284b),
2576 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2577 	/* ICH9 */
2578 	{ PCI_DEVICE(0x8086, 0x293e),
2579 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2580 	/* ICH9 */
2581 	{ PCI_DEVICE(0x8086, 0x293f),
2582 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2583 	/* ICH10 */
2584 	{ PCI_DEVICE(0x8086, 0x3a3e),
2585 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2586 	/* ICH10 */
2587 	{ PCI_DEVICE(0x8086, 0x3a6e),
2588 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2589 	/* Generic Intel */
2590 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2591 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2592 	  .class_mask = 0xffffff,
2593 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2594 	/* ATI SB 450/600/700/800/900 */
2595 	{ PCI_DEVICE(0x1002, 0x437b),
2596 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2597 	{ PCI_DEVICE(0x1002, 0x4383),
2598 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2599 	/* AMD Hudson */
2600 	{ PCI_DEVICE(0x1022, 0x780d),
2601 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2602 	/* AMD, X370 & co */
2603 	{ PCI_DEVICE(0x1022, 0x1457),
2604 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2605 	/* AMD, X570 & co */
2606 	{ PCI_DEVICE(0x1022, 0x1487),
2607 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2608 	/* AMD Stoney */
2609 	{ PCI_DEVICE(0x1022, 0x157a),
2610 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2611 			 AZX_DCAPS_PM_RUNTIME },
2612 	/* AMD Raven */
2613 	{ PCI_DEVICE(0x1022, 0x15e3),
2614 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2615 	/* ATI HDMI */
2616 	{ PCI_DEVICE(0x1002, 0x0002),
2617 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2618 	  AZX_DCAPS_PM_RUNTIME },
2619 	{ PCI_DEVICE(0x1002, 0x1308),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2621 	{ PCI_DEVICE(0x1002, 0x157a),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2623 	{ PCI_DEVICE(0x1002, 0x15b3),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2625 	{ PCI_DEVICE(0x1002, 0x793b),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2627 	{ PCI_DEVICE(0x1002, 0x7919),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2629 	{ PCI_DEVICE(0x1002, 0x960f),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2631 	{ PCI_DEVICE(0x1002, 0x970f),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2633 	{ PCI_DEVICE(0x1002, 0x9840),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2635 	{ PCI_DEVICE(0x1002, 0xaa00),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2637 	{ PCI_DEVICE(0x1002, 0xaa08),
2638 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2639 	{ PCI_DEVICE(0x1002, 0xaa10),
2640 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2641 	{ PCI_DEVICE(0x1002, 0xaa18),
2642 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2643 	{ PCI_DEVICE(0x1002, 0xaa20),
2644 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2645 	{ PCI_DEVICE(0x1002, 0xaa28),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2647 	{ PCI_DEVICE(0x1002, 0xaa30),
2648 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2649 	{ PCI_DEVICE(0x1002, 0xaa38),
2650 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2651 	{ PCI_DEVICE(0x1002, 0xaa40),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2653 	{ PCI_DEVICE(0x1002, 0xaa48),
2654 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2655 	{ PCI_DEVICE(0x1002, 0xaa50),
2656 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2657 	{ PCI_DEVICE(0x1002, 0xaa58),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2659 	{ PCI_DEVICE(0x1002, 0xaa60),
2660 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2661 	{ PCI_DEVICE(0x1002, 0xaa68),
2662 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2663 	{ PCI_DEVICE(0x1002, 0xaa80),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2665 	{ PCI_DEVICE(0x1002, 0xaa88),
2666 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2667 	{ PCI_DEVICE(0x1002, 0xaa90),
2668 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2669 	{ PCI_DEVICE(0x1002, 0xaa98),
2670 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2671 	{ PCI_DEVICE(0x1002, 0x9902),
2672 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2673 	{ PCI_DEVICE(0x1002, 0xaaa0),
2674 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2675 	{ PCI_DEVICE(0x1002, 0xaaa8),
2676 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2677 	{ PCI_DEVICE(0x1002, 0xaab0),
2678 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2679 	{ PCI_DEVICE(0x1002, 0xaac0),
2680 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2681 	  AZX_DCAPS_PM_RUNTIME },
2682 	{ PCI_DEVICE(0x1002, 0xaac8),
2683 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2684 	  AZX_DCAPS_PM_RUNTIME },
2685 	{ PCI_DEVICE(0x1002, 0xaad8),
2686 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2687 	  AZX_DCAPS_PM_RUNTIME },
2688 	{ PCI_DEVICE(0x1002, 0xaae0),
2689 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2690 	  AZX_DCAPS_PM_RUNTIME },
2691 	{ PCI_DEVICE(0x1002, 0xaae8),
2692 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2693 	  AZX_DCAPS_PM_RUNTIME },
2694 	{ PCI_DEVICE(0x1002, 0xaaf0),
2695 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2696 	  AZX_DCAPS_PM_RUNTIME },
2697 	{ PCI_DEVICE(0x1002, 0xaaf8),
2698 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2699 	  AZX_DCAPS_PM_RUNTIME },
2700 	{ PCI_DEVICE(0x1002, 0xab00),
2701 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2702 	  AZX_DCAPS_PM_RUNTIME },
2703 	{ PCI_DEVICE(0x1002, 0xab08),
2704 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2705 	  AZX_DCAPS_PM_RUNTIME },
2706 	{ PCI_DEVICE(0x1002, 0xab10),
2707 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2708 	  AZX_DCAPS_PM_RUNTIME },
2709 	{ PCI_DEVICE(0x1002, 0xab18),
2710 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2711 	  AZX_DCAPS_PM_RUNTIME },
2712 	{ PCI_DEVICE(0x1002, 0xab20),
2713 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2714 	  AZX_DCAPS_PM_RUNTIME },
2715 	{ PCI_DEVICE(0x1002, 0xab28),
2716 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2717 	  AZX_DCAPS_PM_RUNTIME },
2718 	{ PCI_DEVICE(0x1002, 0xab38),
2719 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2720 	  AZX_DCAPS_PM_RUNTIME },
2721 	/* VIA VT8251/VT8237A */
2722 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2723 	/* VIA GFX VT7122/VX900 */
2724 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2725 	/* VIA GFX VT6122/VX11 */
2726 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2727 	/* SIS966 */
2728 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2729 	/* ULI M5461 */
2730 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2731 	/* NVIDIA MCP */
2732 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2733 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2734 	  .class_mask = 0xffffff,
2735 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2736 	/* Teradici */
2737 	{ PCI_DEVICE(0x6549, 0x1200),
2738 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2739 	{ PCI_DEVICE(0x6549, 0x2200),
2740 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2741 	/* Creative X-Fi (CA0110-IBG) */
2742 	/* CTHDA chips */
2743 	{ PCI_DEVICE(0x1102, 0x0010),
2744 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2745 	{ PCI_DEVICE(0x1102, 0x0012),
2746 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2747 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2748 	/* the following entry conflicts with snd-ctxfi driver,
2749 	 * as ctxfi driver mutates from HD-audio to native mode with
2750 	 * a special command sequence.
2751 	 */
2752 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2753 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2754 	  .class_mask = 0xffffff,
2755 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2756 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2757 #else
2758 	/* this entry seems still valid -- i.e. without emu20kx chip */
2759 	{ PCI_DEVICE(0x1102, 0x0009),
2760 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2761 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2762 #endif
2763 	/* CM8888 */
2764 	{ PCI_DEVICE(0x13f6, 0x5011),
2765 	  .driver_data = AZX_DRIVER_CMEDIA |
2766 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2767 	/* Vortex86MX */
2768 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2769 	/* VMware HDAudio */
2770 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2771 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2772 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2773 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2774 	  .class_mask = 0xffffff,
2775 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2776 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2777 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2778 	  .class_mask = 0xffffff,
2779 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2780 	/* Zhaoxin */
2781 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2782 	{ 0, }
2783 };
2784 MODULE_DEVICE_TABLE(pci, azx_ids);
2785 
2786 /* pci_driver definition */
2787 static struct pci_driver azx_driver = {
2788 	.name = KBUILD_MODNAME,
2789 	.id_table = azx_ids,
2790 	.probe = azx_probe,
2791 	.remove = azx_remove,
2792 	.shutdown = azx_shutdown,
2793 	.driver = {
2794 		.pm = AZX_PM_OPS,
2795 	},
2796 };
2797 
2798 module_pci_driver(azx_driver);
2799