xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision 827beb77)
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 
340 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
341 
342 static const char * const driver_short_names[] = {
343 	[AZX_DRIVER_ICH] = "HDA Intel",
344 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
345 	[AZX_DRIVER_SCH] = "HDA Intel MID",
346 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
347 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
348 	[AZX_DRIVER_ATI] = "HDA ATI SB",
349 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
350 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
351 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
352 	[AZX_DRIVER_SIS] = "HDA SIS966",
353 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
354 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
355 	[AZX_DRIVER_TERA] = "HDA Teradici",
356 	[AZX_DRIVER_CTX] = "HDA Creative",
357 	[AZX_DRIVER_CTHDA] = "HDA Creative",
358 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
359 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
360 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
361 };
362 
363 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
364 static void set_default_power_save(struct azx *chip);
365 
366 /*
367  * initialize the PCI registers
368  */
369 /* update bits in a PCI register byte */
370 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
371 			    unsigned char mask, unsigned char val)
372 {
373 	unsigned char data;
374 
375 	pci_read_config_byte(pci, reg, &data);
376 	data &= ~mask;
377 	data |= (val & mask);
378 	pci_write_config_byte(pci, reg, data);
379 }
380 
381 static void azx_init_pci(struct azx *chip)
382 {
383 	int snoop_type = azx_get_snoop_type(chip);
384 
385 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
386 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
387 	 * Ensuring these bits are 0 clears playback static on some HD Audio
388 	 * codecs.
389 	 * The PCI register TCSEL is defined in the Intel manuals.
390 	 */
391 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
392 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
393 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
394 	}
395 
396 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
397 	 * we need to enable snoop.
398 	 */
399 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
400 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
401 			azx_snoop(chip));
402 		update_pci_byte(chip->pci,
403 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
404 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
405 	}
406 
407 	/* For NVIDIA HDA, enable snoop */
408 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
409 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
410 			azx_snoop(chip));
411 		update_pci_byte(chip->pci,
412 				NVIDIA_HDA_TRANSREG_ADDR,
413 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
414 		update_pci_byte(chip->pci,
415 				NVIDIA_HDA_ISTRM_COH,
416 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
417 		update_pci_byte(chip->pci,
418 				NVIDIA_HDA_OSTRM_COH,
419 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
420 	}
421 
422 	/* Enable SCH/PCH snoop if needed */
423 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
424 		unsigned short snoop;
425 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
426 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
427 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
428 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
429 			if (!azx_snoop(chip))
430 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
431 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
432 			pci_read_config_word(chip->pci,
433 				INTEL_SCH_HDA_DEVC, &snoop);
434 		}
435 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
436 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
437 			"Disabled" : "Enabled");
438         }
439 }
440 
441 /*
442  * In BXT-P A0, HD-Audio DMA requests is later than expected,
443  * and makes an audio stream sensitive to system latencies when
444  * 24/32 bits are playing.
445  * Adjusting threshold of DMA fifo to force the DMA request
446  * sooner to improve latency tolerance at the expense of power.
447  */
448 static void bxt_reduce_dma_latency(struct azx *chip)
449 {
450 	u32 val;
451 
452 	val = azx_readl(chip, VS_EM4L);
453 	val &= (0x3 << 20);
454 	azx_writel(chip, VS_EM4L, val);
455 }
456 
457 /*
458  * ML_LCAP bits:
459  *  bit 0: 6 MHz Supported
460  *  bit 1: 12 MHz Supported
461  *  bit 2: 24 MHz Supported
462  *  bit 3: 48 MHz Supported
463  *  bit 4: 96 MHz Supported
464  *  bit 5: 192 MHz Supported
465  */
466 static int intel_get_lctl_scf(struct azx *chip)
467 {
468 	struct hdac_bus *bus = azx_bus(chip);
469 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
470 	u32 val, t;
471 	int i;
472 
473 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
474 
475 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
476 		t = preferred_bits[i];
477 		if (val & (1 << t))
478 			return t;
479 	}
480 
481 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
482 	return 0;
483 }
484 
485 static int intel_ml_lctl_set_power(struct azx *chip, int state)
486 {
487 	struct hdac_bus *bus = azx_bus(chip);
488 	u32 val;
489 	int timeout;
490 
491 	/*
492 	 * the codecs are sharing the first link setting by default
493 	 * If other links are enabled for stream, they need similar fix
494 	 */
495 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
496 	val &= ~AZX_MLCTL_SPA;
497 	val |= state << AZX_MLCTL_SPA_SHIFT;
498 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
499 	/* wait for CPA */
500 	timeout = 50;
501 	while (timeout) {
502 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
503 		    AZX_MLCTL_CPA) == (state << AZX_MLCTL_CPA_SHIFT))
504 			return 0;
505 		timeout--;
506 		udelay(10);
507 	}
508 
509 	return -1;
510 }
511 
512 static void intel_init_lctl(struct azx *chip)
513 {
514 	struct hdac_bus *bus = azx_bus(chip);
515 	u32 val;
516 	int ret;
517 
518 	/* 0. check lctl register value is correct or not */
519 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
520 	/* if SCF is already set, let's use it */
521 	if ((val & ML_LCTL_SCF_MASK) != 0)
522 		return;
523 
524 	/*
525 	 * Before operating on SPA, CPA must match SPA.
526 	 * Any deviation may result in undefined behavior.
527 	 */
528 	if (((val & AZX_MLCTL_SPA) >> AZX_MLCTL_SPA_SHIFT) !=
529 		((val & AZX_MLCTL_CPA) >> AZX_MLCTL_CPA_SHIFT))
530 		return;
531 
532 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
533 	ret = intel_ml_lctl_set_power(chip, 0);
534 	udelay(100);
535 	if (ret)
536 		goto set_spa;
537 
538 	/* 2. update SCF to select a properly audio clock*/
539 	val &= ~ML_LCTL_SCF_MASK;
540 	val |= intel_get_lctl_scf(chip);
541 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
542 
543 set_spa:
544 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
545 	intel_ml_lctl_set_power(chip, 1);
546 	udelay(100);
547 }
548 
549 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
550 {
551 	struct hdac_bus *bus = azx_bus(chip);
552 	struct pci_dev *pci = chip->pci;
553 	u32 val;
554 
555 	snd_hdac_set_codec_wakeup(bus, true);
556 	if (chip->driver_type == AZX_DRIVER_SKL) {
557 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
558 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
559 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
560 	}
561 	azx_init_chip(chip, full_reset);
562 	if (chip->driver_type == AZX_DRIVER_SKL) {
563 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
564 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
565 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
566 	}
567 
568 	snd_hdac_set_codec_wakeup(bus, false);
569 
570 	/* reduce dma latency to avoid noise */
571 	if (IS_BXT(pci))
572 		bxt_reduce_dma_latency(chip);
573 
574 	if (bus->mlcap != NULL)
575 		intel_init_lctl(chip);
576 }
577 
578 /* calculate runtime delay from LPIB */
579 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
580 				   unsigned int pos)
581 {
582 	struct snd_pcm_substream *substream = azx_dev->core.substream;
583 	int stream = substream->stream;
584 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
585 	int delay;
586 
587 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
588 		delay = pos - lpib_pos;
589 	else
590 		delay = lpib_pos - pos;
591 	if (delay < 0) {
592 		if (delay >= azx_dev->core.delay_negative_threshold)
593 			delay = 0;
594 		else
595 			delay += azx_dev->core.bufsize;
596 	}
597 
598 	if (delay >= azx_dev->core.period_bytes) {
599 		dev_info(chip->card->dev,
600 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
601 			 delay, azx_dev->core.period_bytes);
602 		delay = 0;
603 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
604 		chip->get_delay[stream] = NULL;
605 	}
606 
607 	return bytes_to_frames(substream->runtime, delay);
608 }
609 
610 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
611 
612 /* called from IRQ */
613 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
614 {
615 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
616 	int ok;
617 
618 	ok = azx_position_ok(chip, azx_dev);
619 	if (ok == 1) {
620 		azx_dev->irq_pending = 0;
621 		return ok;
622 	} else if (ok == 0) {
623 		/* bogus IRQ, process it later */
624 		azx_dev->irq_pending = 1;
625 		schedule_work(&hda->irq_pending_work);
626 	}
627 	return 0;
628 }
629 
630 #define display_power(chip, enable) \
631 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
632 
633 /*
634  * Check whether the current DMA position is acceptable for updating
635  * periods.  Returns non-zero if it's OK.
636  *
637  * Many HD-audio controllers appear pretty inaccurate about
638  * the update-IRQ timing.  The IRQ is issued before actually the
639  * data is processed.  So, we need to process it afterwords in a
640  * workqueue.
641  */
642 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
643 {
644 	struct snd_pcm_substream *substream = azx_dev->core.substream;
645 	int stream = substream->stream;
646 	u32 wallclk;
647 	unsigned int pos;
648 
649 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
650 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
651 		return -1;	/* bogus (too early) interrupt */
652 
653 	if (chip->get_position[stream])
654 		pos = chip->get_position[stream](chip, azx_dev);
655 	else { /* use the position buffer as default */
656 		pos = azx_get_pos_posbuf(chip, azx_dev);
657 		if (!pos || pos == (u32)-1) {
658 			dev_info(chip->card->dev,
659 				 "Invalid position buffer, using LPIB read method instead.\n");
660 			chip->get_position[stream] = azx_get_pos_lpib;
661 			if (chip->get_position[0] == azx_get_pos_lpib &&
662 			    chip->get_position[1] == azx_get_pos_lpib)
663 				azx_bus(chip)->use_posbuf = false;
664 			pos = azx_get_pos_lpib(chip, azx_dev);
665 			chip->get_delay[stream] = NULL;
666 		} else {
667 			chip->get_position[stream] = azx_get_pos_posbuf;
668 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
669 				chip->get_delay[stream] = azx_get_delay_from_lpib;
670 		}
671 	}
672 
673 	if (pos >= azx_dev->core.bufsize)
674 		pos = 0;
675 
676 	if (WARN_ONCE(!azx_dev->core.period_bytes,
677 		      "hda-intel: zero azx_dev->period_bytes"))
678 		return -1; /* this shouldn't happen! */
679 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
680 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
681 		/* NG - it's below the first next period boundary */
682 		return chip->bdl_pos_adj ? 0 : -1;
683 	azx_dev->core.start_wallclk += wallclk;
684 	return 1; /* OK, it's fine */
685 }
686 
687 /*
688  * The work for pending PCM period updates.
689  */
690 static void azx_irq_pending_work(struct work_struct *work)
691 {
692 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
693 	struct azx *chip = &hda->chip;
694 	struct hdac_bus *bus = azx_bus(chip);
695 	struct hdac_stream *s;
696 	int pending, ok;
697 
698 	if (!hda->irq_pending_warned) {
699 		dev_info(chip->card->dev,
700 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
701 			 chip->card->number);
702 		hda->irq_pending_warned = 1;
703 	}
704 
705 	for (;;) {
706 		pending = 0;
707 		spin_lock_irq(&bus->reg_lock);
708 		list_for_each_entry(s, &bus->stream_list, list) {
709 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
710 			if (!azx_dev->irq_pending ||
711 			    !s->substream ||
712 			    !s->running)
713 				continue;
714 			ok = azx_position_ok(chip, azx_dev);
715 			if (ok > 0) {
716 				azx_dev->irq_pending = 0;
717 				spin_unlock(&bus->reg_lock);
718 				snd_pcm_period_elapsed(s->substream);
719 				spin_lock(&bus->reg_lock);
720 			} else if (ok < 0) {
721 				pending = 0;	/* too early */
722 			} else
723 				pending++;
724 		}
725 		spin_unlock_irq(&bus->reg_lock);
726 		if (!pending)
727 			return;
728 		msleep(1);
729 	}
730 }
731 
732 /* clear irq_pending flags and assure no on-going workq */
733 static void azx_clear_irq_pending(struct azx *chip)
734 {
735 	struct hdac_bus *bus = azx_bus(chip);
736 	struct hdac_stream *s;
737 
738 	spin_lock_irq(&bus->reg_lock);
739 	list_for_each_entry(s, &bus->stream_list, list) {
740 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
741 		azx_dev->irq_pending = 0;
742 	}
743 	spin_unlock_irq(&bus->reg_lock);
744 }
745 
746 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
747 {
748 	struct hdac_bus *bus = azx_bus(chip);
749 
750 	if (request_irq(chip->pci->irq, azx_interrupt,
751 			chip->msi ? 0 : IRQF_SHARED,
752 			chip->card->irq_descr, chip)) {
753 		dev_err(chip->card->dev,
754 			"unable to grab IRQ %d, disabling device\n",
755 			chip->pci->irq);
756 		if (do_disconnect)
757 			snd_card_disconnect(chip->card);
758 		return -1;
759 	}
760 	bus->irq = chip->pci->irq;
761 	chip->card->sync_irq = bus->irq;
762 	pci_intx(chip->pci, !chip->msi);
763 	return 0;
764 }
765 
766 /* get the current DMA position with correction on VIA chips */
767 static unsigned int azx_via_get_position(struct azx *chip,
768 					 struct azx_dev *azx_dev)
769 {
770 	unsigned int link_pos, mini_pos, bound_pos;
771 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
772 	unsigned int fifo_size;
773 
774 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
775 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
776 		/* Playback, no problem using link position */
777 		return link_pos;
778 	}
779 
780 	/* Capture */
781 	/* For new chipset,
782 	 * use mod to get the DMA position just like old chipset
783 	 */
784 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
785 	mod_dma_pos %= azx_dev->core.period_bytes;
786 
787 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
788 
789 	if (azx_dev->insufficient) {
790 		/* Link position never gather than FIFO size */
791 		if (link_pos <= fifo_size)
792 			return 0;
793 
794 		azx_dev->insufficient = 0;
795 	}
796 
797 	if (link_pos <= fifo_size)
798 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
799 	else
800 		mini_pos = link_pos - fifo_size;
801 
802 	/* Find nearest previous boudary */
803 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
804 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
805 	if (mod_link_pos >= fifo_size)
806 		bound_pos = link_pos - mod_link_pos;
807 	else if (mod_dma_pos >= mod_mini_pos)
808 		bound_pos = mini_pos - mod_mini_pos;
809 	else {
810 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
811 		if (bound_pos >= azx_dev->core.bufsize)
812 			bound_pos = 0;
813 	}
814 
815 	/* Calculate real DMA position we want */
816 	return bound_pos + mod_dma_pos;
817 }
818 
819 #define AMD_FIFO_SIZE	32
820 
821 /* get the current DMA position with FIFO size correction */
822 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
823 {
824 	struct snd_pcm_substream *substream = azx_dev->core.substream;
825 	struct snd_pcm_runtime *runtime = substream->runtime;
826 	unsigned int pos, delay;
827 
828 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
829 	if (!runtime)
830 		return pos;
831 
832 	runtime->delay = AMD_FIFO_SIZE;
833 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
834 	if (azx_dev->insufficient) {
835 		if (pos < delay) {
836 			delay = pos;
837 			runtime->delay = bytes_to_frames(runtime, pos);
838 		} else {
839 			azx_dev->insufficient = 0;
840 		}
841 	}
842 
843 	/* correct the DMA position for capture stream */
844 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
845 		if (pos < delay)
846 			pos += azx_dev->core.bufsize;
847 		pos -= delay;
848 	}
849 
850 	return pos;
851 }
852 
853 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
854 				   unsigned int pos)
855 {
856 	struct snd_pcm_substream *substream = azx_dev->core.substream;
857 
858 	/* just read back the calculated value in the above */
859 	return substream->runtime->delay;
860 }
861 
862 static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
863 					 struct azx_dev *azx_dev)
864 {
865 	return _snd_hdac_chip_readl(azx_bus(chip),
866 				    AZX_REG_VS_SDXDPIB_XBASE +
867 				    (AZX_REG_VS_SDXDPIB_XINTERVAL *
868 				     azx_dev->core.index));
869 }
870 
871 /* get the current DMA position with correction on SKL+ chips */
872 static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
873 {
874 	/* DPIB register gives a more accurate position for playback */
875 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
876 		return azx_skl_get_dpib_pos(chip, azx_dev);
877 
878 	/* For capture, we need to read posbuf, but it requires a delay
879 	 * for the possible boundary overlap; the read of DPIB fetches the
880 	 * actual posbuf
881 	 */
882 	udelay(20);
883 	azx_skl_get_dpib_pos(chip, azx_dev);
884 	return azx_get_pos_posbuf(chip, azx_dev);
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 	chip->running = 0;
1356 
1357 	azx_del_card_list(chip);
1358 
1359 	hda->init_failed = 1; /* to be sure */
1360 	complete_all(&hda->probe_wait);
1361 
1362 	if (use_vga_switcheroo(hda)) {
1363 		if (chip->disabled && hda->probe_continued)
1364 			snd_hda_unlock_devices(&chip->bus);
1365 		if (hda->vga_switcheroo_registered)
1366 			vga_switcheroo_unregister_client(chip->pci);
1367 	}
1368 
1369 	if (bus->chip_init) {
1370 		azx_clear_irq_pending(chip);
1371 		azx_stop_all_streams(chip);
1372 		azx_stop_chip(chip);
1373 	}
1374 
1375 	if (bus->irq >= 0)
1376 		free_irq(bus->irq, (void*)chip);
1377 
1378 	azx_free_stream_pages(chip);
1379 	azx_free_streams(chip);
1380 	snd_hdac_bus_exit(bus);
1381 
1382 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1383 	release_firmware(chip->fw);
1384 #endif
1385 	display_power(chip, false);
1386 
1387 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1388 		snd_hdac_i915_exit(bus);
1389 
1390 	hda->freed = 1;
1391 }
1392 
1393 static int azx_dev_disconnect(struct snd_device *device)
1394 {
1395 	struct azx *chip = device->device_data;
1396 	struct hdac_bus *bus = azx_bus(chip);
1397 
1398 	chip->bus.shutdown = 1;
1399 	cancel_work_sync(&bus->unsol_work);
1400 
1401 	return 0;
1402 }
1403 
1404 static int azx_dev_free(struct snd_device *device)
1405 {
1406 	azx_free(device->device_data);
1407 	return 0;
1408 }
1409 
1410 #ifdef SUPPORT_VGA_SWITCHEROO
1411 #ifdef CONFIG_ACPI
1412 /* ATPX is in the integrated GPU's namespace */
1413 static bool atpx_present(void)
1414 {
1415 	struct pci_dev *pdev = NULL;
1416 	acpi_handle dhandle, atpx_handle;
1417 	acpi_status status;
1418 
1419 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1420 		dhandle = ACPI_HANDLE(&pdev->dev);
1421 		if (dhandle) {
1422 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1423 			if (ACPI_SUCCESS(status)) {
1424 				pci_dev_put(pdev);
1425 				return true;
1426 			}
1427 		}
1428 	}
1429 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1430 		dhandle = ACPI_HANDLE(&pdev->dev);
1431 		if (dhandle) {
1432 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1433 			if (ACPI_SUCCESS(status)) {
1434 				pci_dev_put(pdev);
1435 				return true;
1436 			}
1437 		}
1438 	}
1439 	return false;
1440 }
1441 #else
1442 static bool atpx_present(void)
1443 {
1444 	return false;
1445 }
1446 #endif
1447 
1448 /*
1449  * Check of disabled HDMI controller by vga_switcheroo
1450  */
1451 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1452 {
1453 	struct pci_dev *p;
1454 
1455 	/* check only discrete GPU */
1456 	switch (pci->vendor) {
1457 	case PCI_VENDOR_ID_ATI:
1458 	case PCI_VENDOR_ID_AMD:
1459 		if (pci->devfn == 1) {
1460 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1461 							pci->bus->number, 0);
1462 			if (p) {
1463 				/* ATPX is in the integrated GPU's ACPI namespace
1464 				 * rather than the dGPU's namespace. However,
1465 				 * the dGPU is the one who is involved in
1466 				 * vgaswitcheroo.
1467 				 */
1468 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1469 				    atpx_present())
1470 					return p;
1471 				pci_dev_put(p);
1472 			}
1473 		}
1474 		break;
1475 	case PCI_VENDOR_ID_NVIDIA:
1476 		if (pci->devfn == 1) {
1477 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1478 							pci->bus->number, 0);
1479 			if (p) {
1480 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1481 					return p;
1482 				pci_dev_put(p);
1483 			}
1484 		}
1485 		break;
1486 	}
1487 	return NULL;
1488 }
1489 
1490 static bool check_hdmi_disabled(struct pci_dev *pci)
1491 {
1492 	bool vga_inactive = false;
1493 	struct pci_dev *p = get_bound_vga(pci);
1494 
1495 	if (p) {
1496 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1497 			vga_inactive = true;
1498 		pci_dev_put(p);
1499 	}
1500 	return vga_inactive;
1501 }
1502 #endif /* SUPPORT_VGA_SWITCHEROO */
1503 
1504 /*
1505  * allow/deny-listing for position_fix
1506  */
1507 static const struct snd_pci_quirk position_fix_list[] = {
1508 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1509 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1510 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1511 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1512 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1514 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1519 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1520 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1521 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1522 	{}
1523 };
1524 
1525 static int check_position_fix(struct azx *chip, int fix)
1526 {
1527 	const struct snd_pci_quirk *q;
1528 
1529 	switch (fix) {
1530 	case POS_FIX_AUTO:
1531 	case POS_FIX_LPIB:
1532 	case POS_FIX_POSBUF:
1533 	case POS_FIX_VIACOMBO:
1534 	case POS_FIX_COMBO:
1535 	case POS_FIX_SKL:
1536 	case POS_FIX_FIFO:
1537 		return fix;
1538 	}
1539 
1540 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1541 	if (q) {
1542 		dev_info(chip->card->dev,
1543 			 "position_fix set to %d for device %04x:%04x\n",
1544 			 q->value, q->subvendor, q->subdevice);
1545 		return q->value;
1546 	}
1547 
1548 	/* Check VIA/ATI HD Audio Controller exist */
1549 	if (chip->driver_type == AZX_DRIVER_VIA) {
1550 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1551 		return POS_FIX_VIACOMBO;
1552 	}
1553 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1554 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1555 		return POS_FIX_FIFO;
1556 	}
1557 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1558 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1559 		return POS_FIX_LPIB;
1560 	}
1561 	if (chip->driver_type == AZX_DRIVER_SKL) {
1562 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1563 		return POS_FIX_SKL;
1564 	}
1565 	return POS_FIX_AUTO;
1566 }
1567 
1568 static void assign_position_fix(struct azx *chip, int fix)
1569 {
1570 	static const azx_get_pos_callback_t callbacks[] = {
1571 		[POS_FIX_AUTO] = NULL,
1572 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1573 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1574 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1575 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1576 		[POS_FIX_SKL] = azx_get_pos_skl,
1577 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1578 	};
1579 
1580 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1581 
1582 	/* combo mode uses LPIB only for playback */
1583 	if (fix == POS_FIX_COMBO)
1584 		chip->get_position[1] = NULL;
1585 
1586 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1587 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1588 		chip->get_delay[0] = chip->get_delay[1] =
1589 			azx_get_delay_from_lpib;
1590 	}
1591 
1592 	if (fix == POS_FIX_FIFO)
1593 		chip->get_delay[0] = chip->get_delay[1] =
1594 			azx_get_delay_from_fifo;
1595 }
1596 
1597 /*
1598  * deny-lists for probe_mask
1599  */
1600 static const struct snd_pci_quirk probe_mask_list[] = {
1601 	/* Thinkpad often breaks the controller communication when accessing
1602 	 * to the non-working (or non-existing) modem codec slot.
1603 	 */
1604 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1605 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1606 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1607 	/* broken BIOS */
1608 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1609 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1610 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1611 	/* forced codec slots */
1612 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1613 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1614 	/* WinFast VP200 H (Teradici) user reported broken communication */
1615 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1616 	{}
1617 };
1618 
1619 #define AZX_FORCE_CODEC_MASK	0x100
1620 
1621 static void check_probe_mask(struct azx *chip, int dev)
1622 {
1623 	const struct snd_pci_quirk *q;
1624 
1625 	chip->codec_probe_mask = probe_mask[dev];
1626 	if (chip->codec_probe_mask == -1) {
1627 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1628 		if (q) {
1629 			dev_info(chip->card->dev,
1630 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1631 				 q->value, q->subvendor, q->subdevice);
1632 			chip->codec_probe_mask = q->value;
1633 		}
1634 	}
1635 
1636 	/* check forced option */
1637 	if (chip->codec_probe_mask != -1 &&
1638 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1639 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1640 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1641 			 (int)azx_bus(chip)->codec_mask);
1642 	}
1643 }
1644 
1645 /*
1646  * allow/deny-list for enable_msi
1647  */
1648 static const struct snd_pci_quirk msi_deny_list[] = {
1649 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1650 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1651 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1652 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1653 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1654 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1655 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1656 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1657 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1658 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1659 	{}
1660 };
1661 
1662 static void check_msi(struct azx *chip)
1663 {
1664 	const struct snd_pci_quirk *q;
1665 
1666 	if (enable_msi >= 0) {
1667 		chip->msi = !!enable_msi;
1668 		return;
1669 	}
1670 	chip->msi = 1;	/* enable MSI as default */
1671 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1672 	if (q) {
1673 		dev_info(chip->card->dev,
1674 			 "msi for device %04x:%04x set to %d\n",
1675 			 q->subvendor, q->subdevice, q->value);
1676 		chip->msi = q->value;
1677 		return;
1678 	}
1679 
1680 	/* NVidia chipsets seem to cause troubles with MSI */
1681 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1682 		dev_info(chip->card->dev, "Disabling MSI\n");
1683 		chip->msi = 0;
1684 	}
1685 }
1686 
1687 /* check the snoop mode availability */
1688 static void azx_check_snoop_available(struct azx *chip)
1689 {
1690 	int snoop = hda_snoop;
1691 
1692 	if (snoop >= 0) {
1693 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1694 			 snoop ? "snoop" : "non-snoop");
1695 		chip->snoop = snoop;
1696 		chip->uc_buffer = !snoop;
1697 		return;
1698 	}
1699 
1700 	snoop = true;
1701 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1702 	    chip->driver_type == AZX_DRIVER_VIA) {
1703 		/* force to non-snoop mode for a new VIA controller
1704 		 * when BIOS is set
1705 		 */
1706 		u8 val;
1707 		pci_read_config_byte(chip->pci, 0x42, &val);
1708 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1709 				      chip->pci->revision == 0x20))
1710 			snoop = false;
1711 	}
1712 
1713 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1714 		snoop = false;
1715 
1716 	chip->snoop = snoop;
1717 	if (!snoop) {
1718 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1719 		/* C-Media requires non-cached pages only for CORB/RIRB */
1720 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1721 			chip->uc_buffer = true;
1722 	}
1723 }
1724 
1725 static void azx_probe_work(struct work_struct *work)
1726 {
1727 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1728 	azx_probe_continue(&hda->chip);
1729 }
1730 
1731 static int default_bdl_pos_adj(struct azx *chip)
1732 {
1733 	/* some exceptions: Atoms seem problematic with value 1 */
1734 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1735 		switch (chip->pci->device) {
1736 		case 0x0f04: /* Baytrail */
1737 		case 0x2284: /* Braswell */
1738 			return 32;
1739 		}
1740 	}
1741 
1742 	switch (chip->driver_type) {
1743 	case AZX_DRIVER_ICH:
1744 	case AZX_DRIVER_PCH:
1745 		return 1;
1746 	default:
1747 		return 32;
1748 	}
1749 }
1750 
1751 /*
1752  * constructor
1753  */
1754 static const struct hda_controller_ops pci_hda_ops;
1755 
1756 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1757 		      int dev, unsigned int driver_caps,
1758 		      struct azx **rchip)
1759 {
1760 	static const struct snd_device_ops ops = {
1761 		.dev_disconnect = azx_dev_disconnect,
1762 		.dev_free = azx_dev_free,
1763 	};
1764 	struct hda_intel *hda;
1765 	struct azx *chip;
1766 	int err;
1767 
1768 	*rchip = NULL;
1769 
1770 	err = pcim_enable_device(pci);
1771 	if (err < 0)
1772 		return err;
1773 
1774 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1775 	if (!hda)
1776 		return -ENOMEM;
1777 
1778 	chip = &hda->chip;
1779 	mutex_init(&chip->open_mutex);
1780 	chip->card = card;
1781 	chip->pci = pci;
1782 	chip->ops = &pci_hda_ops;
1783 	chip->driver_caps = driver_caps;
1784 	chip->driver_type = driver_caps & 0xff;
1785 	check_msi(chip);
1786 	chip->dev_index = dev;
1787 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1788 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1789 	INIT_LIST_HEAD(&chip->pcm_list);
1790 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1791 	INIT_LIST_HEAD(&hda->list);
1792 	init_vga_switcheroo(chip);
1793 	init_completion(&hda->probe_wait);
1794 
1795 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1796 
1797 	check_probe_mask(chip, dev);
1798 
1799 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1800 		chip->fallback_to_single_cmd = 1;
1801 	else /* explicitly set to single_cmd or not */
1802 		chip->single_cmd = single_cmd;
1803 
1804 	azx_check_snoop_available(chip);
1805 
1806 	if (bdl_pos_adj[dev] < 0)
1807 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1808 	else
1809 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1810 
1811 	err = azx_bus_init(chip, model[dev]);
1812 	if (err < 0)
1813 		return err;
1814 
1815 	/* use the non-cached pages in non-snoop mode */
1816 	if (!azx_snoop(chip))
1817 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC;
1818 
1819 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1820 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1821 		chip->bus.core.needs_damn_long_delay = 1;
1822 	}
1823 
1824 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1825 	if (err < 0) {
1826 		dev_err(card->dev, "Error creating device [card]!\n");
1827 		azx_free(chip);
1828 		return err;
1829 	}
1830 
1831 	/* continue probing in work context as may trigger request module */
1832 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1833 
1834 	*rchip = chip;
1835 
1836 	return 0;
1837 }
1838 
1839 static int azx_first_init(struct azx *chip)
1840 {
1841 	int dev = chip->dev_index;
1842 	struct pci_dev *pci = chip->pci;
1843 	struct snd_card *card = chip->card;
1844 	struct hdac_bus *bus = azx_bus(chip);
1845 	int err;
1846 	unsigned short gcap;
1847 	unsigned int dma_bits = 64;
1848 
1849 #if BITS_PER_LONG != 64
1850 	/* Fix up base address on ULI M5461 */
1851 	if (chip->driver_type == AZX_DRIVER_ULI) {
1852 		u16 tmp3;
1853 		pci_read_config_word(pci, 0x40, &tmp3);
1854 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1855 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1856 	}
1857 #endif
1858 
1859 	err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");
1860 	if (err < 0)
1861 		return err;
1862 
1863 	bus->addr = pci_resource_start(pci, 0);
1864 	bus->remap_addr = pcim_iomap_table(pci)[0];
1865 
1866 	if (chip->driver_type == AZX_DRIVER_SKL)
1867 		snd_hdac_bus_parse_capabilities(bus);
1868 
1869 	/*
1870 	 * Some Intel CPUs has always running timer (ART) feature and
1871 	 * controller may have Global time sync reporting capability, so
1872 	 * check both of these before declaring synchronized time reporting
1873 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1874 	 */
1875 	chip->gts_present = false;
1876 
1877 #ifdef CONFIG_X86
1878 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1879 		chip->gts_present = true;
1880 #endif
1881 
1882 	if (chip->msi) {
1883 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1884 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1885 			pci->no_64bit_msi = true;
1886 		}
1887 		if (pci_enable_msi(pci) < 0)
1888 			chip->msi = 0;
1889 	}
1890 
1891 	pci_set_master(pci);
1892 
1893 	gcap = azx_readw(chip, GCAP);
1894 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1895 
1896 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1897 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1898 		dma_bits = 40;
1899 
1900 	/* disable SB600 64bit support for safety */
1901 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1902 		struct pci_dev *p_smbus;
1903 		dma_bits = 40;
1904 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1905 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1906 					 NULL);
1907 		if (p_smbus) {
1908 			if (p_smbus->revision < 0x30)
1909 				gcap &= ~AZX_GCAP_64OK;
1910 			pci_dev_put(p_smbus);
1911 		}
1912 	}
1913 
1914 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1915 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1916 		dma_bits = 40;
1917 
1918 	/* disable 64bit DMA address on some devices */
1919 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1920 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1921 		gcap &= ~AZX_GCAP_64OK;
1922 	}
1923 
1924 	/* disable buffer size rounding to 128-byte multiples if supported */
1925 	if (align_buffer_size >= 0)
1926 		chip->align_buffer_size = !!align_buffer_size;
1927 	else {
1928 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1929 			chip->align_buffer_size = 0;
1930 		else
1931 			chip->align_buffer_size = 1;
1932 	}
1933 
1934 	/* allow 64bit DMA address if supported by H/W */
1935 	if (!(gcap & AZX_GCAP_64OK))
1936 		dma_bits = 32;
1937 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1938 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1939 
1940 	/* read number of streams from GCAP register instead of using
1941 	 * hardcoded value
1942 	 */
1943 	chip->capture_streams = (gcap >> 8) & 0x0f;
1944 	chip->playback_streams = (gcap >> 12) & 0x0f;
1945 	if (!chip->playback_streams && !chip->capture_streams) {
1946 		/* gcap didn't give any info, switching to old method */
1947 
1948 		switch (chip->driver_type) {
1949 		case AZX_DRIVER_ULI:
1950 			chip->playback_streams = ULI_NUM_PLAYBACK;
1951 			chip->capture_streams = ULI_NUM_CAPTURE;
1952 			break;
1953 		case AZX_DRIVER_ATIHDMI:
1954 		case AZX_DRIVER_ATIHDMI_NS:
1955 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1956 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1957 			break;
1958 		case AZX_DRIVER_GENERIC:
1959 		default:
1960 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1961 			chip->capture_streams = ICH6_NUM_CAPTURE;
1962 			break;
1963 		}
1964 	}
1965 	chip->capture_index_offset = 0;
1966 	chip->playback_index_offset = chip->capture_streams;
1967 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1968 
1969 	/* sanity check for the SDxCTL.STRM field overflow */
1970 	if (chip->num_streams > 15 &&
1971 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1972 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1973 			 "forcing separate stream tags", chip->num_streams);
1974 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1975 	}
1976 
1977 	/* initialize streams */
1978 	err = azx_init_streams(chip);
1979 	if (err < 0)
1980 		return err;
1981 
1982 	err = azx_alloc_stream_pages(chip);
1983 	if (err < 0)
1984 		return err;
1985 
1986 	/* initialize chip */
1987 	azx_init_pci(chip);
1988 
1989 	snd_hdac_i915_set_bclk(bus);
1990 
1991 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1992 
1993 	/* codec detection */
1994 	if (!azx_bus(chip)->codec_mask) {
1995 		dev_err(card->dev, "no codecs found!\n");
1996 		/* keep running the rest for the runtime PM */
1997 	}
1998 
1999 	if (azx_acquire_irq(chip, 0) < 0)
2000 		return -EBUSY;
2001 
2002 	strcpy(card->driver, "HDA-Intel");
2003 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2004 		sizeof(card->shortname));
2005 	snprintf(card->longname, sizeof(card->longname),
2006 		 "%s at 0x%lx irq %i",
2007 		 card->shortname, bus->addr, bus->irq);
2008 
2009 	return 0;
2010 }
2011 
2012 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2013 /* callback from request_firmware_nowait() */
2014 static void azx_firmware_cb(const struct firmware *fw, void *context)
2015 {
2016 	struct snd_card *card = context;
2017 	struct azx *chip = card->private_data;
2018 
2019 	if (fw)
2020 		chip->fw = fw;
2021 	else
2022 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2023 	if (!chip->disabled) {
2024 		/* continue probing */
2025 		azx_probe_continue(chip);
2026 	}
2027 }
2028 #endif
2029 
2030 static int disable_msi_reset_irq(struct azx *chip)
2031 {
2032 	struct hdac_bus *bus = azx_bus(chip);
2033 	int err;
2034 
2035 	free_irq(bus->irq, chip);
2036 	bus->irq = -1;
2037 	chip->card->sync_irq = -1;
2038 	pci_disable_msi(chip->pci);
2039 	chip->msi = 0;
2040 	err = azx_acquire_irq(chip, 1);
2041 	if (err < 0)
2042 		return err;
2043 
2044 	return 0;
2045 }
2046 
2047 /* Denylist for skipping the whole probe:
2048  * some HD-audio PCI entries are exposed without any codecs, and such devices
2049  * should be ignored from the beginning.
2050  */
2051 static const struct pci_device_id driver_denylist[] = {
2052 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2053 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2054 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2055 	{}
2056 };
2057 
2058 static const struct hda_controller_ops pci_hda_ops = {
2059 	.disable_msi_reset_irq = disable_msi_reset_irq,
2060 	.position_check = azx_position_check,
2061 };
2062 
2063 static int azx_probe(struct pci_dev *pci,
2064 		     const struct pci_device_id *pci_id)
2065 {
2066 	static int dev;
2067 	struct snd_card *card;
2068 	struct hda_intel *hda;
2069 	struct azx *chip;
2070 	bool schedule_probe;
2071 	int err;
2072 
2073 	if (pci_match_id(driver_denylist, pci)) {
2074 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2075 		return -ENODEV;
2076 	}
2077 
2078 	if (dev >= SNDRV_CARDS)
2079 		return -ENODEV;
2080 	if (!enable[dev]) {
2081 		dev++;
2082 		return -ENOENT;
2083 	}
2084 
2085 	/*
2086 	 * stop probe if another Intel's DSP driver should be activated
2087 	 */
2088 	if (dmic_detect) {
2089 		err = snd_intel_dsp_driver_probe(pci);
2090 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2091 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2092 			return -ENODEV;
2093 		}
2094 	} else {
2095 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2096 	}
2097 
2098 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2099 			   0, &card);
2100 	if (err < 0) {
2101 		dev_err(&pci->dev, "Error creating card!\n");
2102 		return err;
2103 	}
2104 
2105 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2106 	if (err < 0)
2107 		goto out_free;
2108 	card->private_data = chip;
2109 	hda = container_of(chip, struct hda_intel, chip);
2110 
2111 	pci_set_drvdata(pci, card);
2112 
2113 	err = register_vga_switcheroo(chip);
2114 	if (err < 0) {
2115 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2116 		goto out_free;
2117 	}
2118 
2119 	if (check_hdmi_disabled(pci)) {
2120 		dev_info(card->dev, "VGA controller is disabled\n");
2121 		dev_info(card->dev, "Delaying initialization\n");
2122 		chip->disabled = true;
2123 	}
2124 
2125 	schedule_probe = !chip->disabled;
2126 
2127 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2128 	if (patch[dev] && *patch[dev]) {
2129 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2130 			 patch[dev]);
2131 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2132 					      &pci->dev, GFP_KERNEL, card,
2133 					      azx_firmware_cb);
2134 		if (err < 0)
2135 			goto out_free;
2136 		schedule_probe = false; /* continued in azx_firmware_cb() */
2137 	}
2138 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2139 
2140 #ifndef CONFIG_SND_HDA_I915
2141 	if (CONTROLLER_IN_GPU(pci))
2142 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2143 #endif
2144 
2145 	if (schedule_probe)
2146 		schedule_delayed_work(&hda->probe_work, 0);
2147 
2148 	dev++;
2149 	if (chip->disabled)
2150 		complete_all(&hda->probe_wait);
2151 	return 0;
2152 
2153 out_free:
2154 	snd_card_free(card);
2155 	return err;
2156 }
2157 
2158 #ifdef CONFIG_PM
2159 /* On some boards setting power_save to a non 0 value leads to clicking /
2160  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2161  * figure out how to avoid these sounds, but that is not always feasible.
2162  * So we keep a list of devices where we disable powersaving as its known
2163  * to causes problems on these devices.
2164  */
2165 static const struct snd_pci_quirk power_save_denylist[] = {
2166 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2167 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2168 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2169 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2170 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2171 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2172 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2173 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2174 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2175 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2176 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2177 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2178 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2179 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2180 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2181 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2182 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2183 	/* https://bugs.launchpad.net/bugs/1821663 */
2184 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2185 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2186 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2187 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2188 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2189 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2190 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2191 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2192 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2193 	/* https://bugs.launchpad.net/bugs/1821663 */
2194 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2195 	{}
2196 };
2197 #endif /* CONFIG_PM */
2198 
2199 static void set_default_power_save(struct azx *chip)
2200 {
2201 	int val = power_save;
2202 
2203 #ifdef CONFIG_PM
2204 	if (pm_blacklist) {
2205 		const struct snd_pci_quirk *q;
2206 
2207 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2208 		if (q && val) {
2209 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2210 				 q->subvendor, q->subdevice);
2211 			val = 0;
2212 		}
2213 	}
2214 #endif /* CONFIG_PM */
2215 	snd_hda_set_power_save(&chip->bus, val * 1000);
2216 }
2217 
2218 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2219 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2220 	[AZX_DRIVER_NVIDIA] = 8,
2221 	[AZX_DRIVER_TERA] = 1,
2222 };
2223 
2224 static int azx_probe_continue(struct azx *chip)
2225 {
2226 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2227 	struct hdac_bus *bus = azx_bus(chip);
2228 	struct pci_dev *pci = chip->pci;
2229 	int dev = chip->dev_index;
2230 	int err;
2231 
2232 	if (chip->disabled || hda->init_failed)
2233 		return -EIO;
2234 	if (hda->probe_retry)
2235 		goto probe_retry;
2236 
2237 	to_hda_bus(bus)->bus_probing = 1;
2238 	hda->probe_continued = 1;
2239 
2240 	/* bind with i915 if needed */
2241 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2242 		err = snd_hdac_i915_init(bus);
2243 		if (err < 0) {
2244 			/* if the controller is bound only with HDMI/DP
2245 			 * (for HSW and BDW), we need to abort the probe;
2246 			 * for other chips, still continue probing as other
2247 			 * codecs can be on the same link.
2248 			 */
2249 			if (CONTROLLER_IN_GPU(pci)) {
2250 				dev_err(chip->card->dev,
2251 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2252 				goto out_free;
2253 			} else {
2254 				/* don't bother any longer */
2255 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2256 			}
2257 		}
2258 
2259 		/* HSW/BDW controllers need this power */
2260 		if (CONTROLLER_IN_GPU(pci))
2261 			hda->need_i915_power = true;
2262 	}
2263 
2264 	/* Request display power well for the HDA controller or codec. For
2265 	 * Haswell/Broadwell, both the display HDA controller and codec need
2266 	 * this power. For other platforms, like Baytrail/Braswell, only the
2267 	 * display codec needs the power and it can be released after probe.
2268 	 */
2269 	display_power(chip, true);
2270 
2271 	err = azx_first_init(chip);
2272 	if (err < 0)
2273 		goto out_free;
2274 
2275 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2276 	chip->beep_mode = beep_mode[dev];
2277 #endif
2278 
2279 	/* create codec instances */
2280 	if (bus->codec_mask) {
2281 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2282 		if (err < 0)
2283 			goto out_free;
2284 	}
2285 
2286 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2287 	if (chip->fw) {
2288 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2289 					 chip->fw->data);
2290 		if (err < 0)
2291 			goto out_free;
2292 #ifndef CONFIG_PM
2293 		release_firmware(chip->fw); /* no longer needed */
2294 		chip->fw = NULL;
2295 #endif
2296 	}
2297 #endif
2298 
2299  probe_retry:
2300 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2301 		err = azx_codec_configure(chip);
2302 		if (err) {
2303 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2304 			    ++hda->probe_retry < 60) {
2305 				schedule_delayed_work(&hda->probe_work,
2306 						      msecs_to_jiffies(1000));
2307 				return 0; /* keep things up */
2308 			}
2309 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2310 			goto out_free;
2311 		}
2312 	}
2313 
2314 	err = snd_card_register(chip->card);
2315 	if (err < 0)
2316 		goto out_free;
2317 
2318 	setup_vga_switcheroo_runtime_pm(chip);
2319 
2320 	chip->running = 1;
2321 	azx_add_card_list(chip);
2322 
2323 	set_default_power_save(chip);
2324 
2325 	if (azx_has_pm_runtime(chip)) {
2326 		pm_runtime_use_autosuspend(&pci->dev);
2327 		pm_runtime_allow(&pci->dev);
2328 		pm_runtime_put_autosuspend(&pci->dev);
2329 	}
2330 
2331 out_free:
2332 	if (err < 0) {
2333 		azx_free(chip);
2334 		return err;
2335 	}
2336 
2337 	if (!hda->need_i915_power)
2338 		display_power(chip, false);
2339 	complete_all(&hda->probe_wait);
2340 	to_hda_bus(bus)->bus_probing = 0;
2341 	hda->probe_retry = 0;
2342 	return 0;
2343 }
2344 
2345 static void azx_remove(struct pci_dev *pci)
2346 {
2347 	struct snd_card *card = pci_get_drvdata(pci);
2348 	struct azx *chip;
2349 	struct hda_intel *hda;
2350 
2351 	if (card) {
2352 		/* cancel the pending probing work */
2353 		chip = card->private_data;
2354 		hda = container_of(chip, struct hda_intel, chip);
2355 		/* FIXME: below is an ugly workaround.
2356 		 * Both device_release_driver() and driver_probe_device()
2357 		 * take *both* the device's and its parent's lock before
2358 		 * calling the remove() and probe() callbacks.  The codec
2359 		 * probe takes the locks of both the codec itself and its
2360 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2361 		 * the PCI controller is unbound, it takes its lock, too
2362 		 * ==> ouch, a deadlock!
2363 		 * As a workaround, we unlock temporarily here the controller
2364 		 * device during cancel_work_sync() call.
2365 		 */
2366 		device_unlock(&pci->dev);
2367 		cancel_delayed_work_sync(&hda->probe_work);
2368 		device_lock(&pci->dev);
2369 
2370 		snd_card_free(card);
2371 	}
2372 }
2373 
2374 static void azx_shutdown(struct pci_dev *pci)
2375 {
2376 	struct snd_card *card = pci_get_drvdata(pci);
2377 	struct azx *chip;
2378 
2379 	if (!card)
2380 		return;
2381 	chip = card->private_data;
2382 	if (chip && chip->running)
2383 		__azx_shutdown_chip(chip, true);
2384 }
2385 
2386 /* PCI IDs */
2387 static const struct pci_device_id azx_ids[] = {
2388 	/* CPT */
2389 	{ PCI_DEVICE(0x8086, 0x1c20),
2390 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2391 	/* PBG */
2392 	{ PCI_DEVICE(0x8086, 0x1d20),
2393 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2394 	/* Panther Point */
2395 	{ PCI_DEVICE(0x8086, 0x1e20),
2396 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2397 	/* Lynx Point */
2398 	{ PCI_DEVICE(0x8086, 0x8c20),
2399 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2400 	/* 9 Series */
2401 	{ PCI_DEVICE(0x8086, 0x8ca0),
2402 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2403 	/* Wellsburg */
2404 	{ PCI_DEVICE(0x8086, 0x8d20),
2405 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2406 	{ PCI_DEVICE(0x8086, 0x8d21),
2407 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2408 	/* Lewisburg */
2409 	{ PCI_DEVICE(0x8086, 0xa1f0),
2410 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2411 	{ PCI_DEVICE(0x8086, 0xa270),
2412 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2413 	/* Lynx Point-LP */
2414 	{ PCI_DEVICE(0x8086, 0x9c20),
2415 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2416 	/* Lynx Point-LP */
2417 	{ PCI_DEVICE(0x8086, 0x9c21),
2418 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2419 	/* Wildcat Point-LP */
2420 	{ PCI_DEVICE(0x8086, 0x9ca0),
2421 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2422 	/* Sunrise Point */
2423 	{ PCI_DEVICE(0x8086, 0xa170),
2424 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2425 	/* Sunrise Point-LP */
2426 	{ PCI_DEVICE(0x8086, 0x9d70),
2427 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2428 	/* Kabylake */
2429 	{ PCI_DEVICE(0x8086, 0xa171),
2430 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2431 	/* Kabylake-LP */
2432 	{ PCI_DEVICE(0x8086, 0x9d71),
2433 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2434 	/* Kabylake-H */
2435 	{ PCI_DEVICE(0x8086, 0xa2f0),
2436 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2437 	/* Coffelake */
2438 	{ PCI_DEVICE(0x8086, 0xa348),
2439 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2440 	/* Cannonlake */
2441 	{ PCI_DEVICE(0x8086, 0x9dc8),
2442 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2443 	/* CometLake-LP */
2444 	{ PCI_DEVICE(0x8086, 0x02C8),
2445 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2446 	/* CometLake-H */
2447 	{ PCI_DEVICE(0x8086, 0x06C8),
2448 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2449 	{ PCI_DEVICE(0x8086, 0xf1c8),
2450 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2451 	/* CometLake-S */
2452 	{ PCI_DEVICE(0x8086, 0xa3f0),
2453 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2454 	/* CometLake-R */
2455 	{ PCI_DEVICE(0x8086, 0xf0c8),
2456 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2457 	/* Icelake */
2458 	{ PCI_DEVICE(0x8086, 0x34c8),
2459 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2460 	/* Icelake-H */
2461 	{ PCI_DEVICE(0x8086, 0x3dc8),
2462 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2463 	/* Jasperlake */
2464 	{ PCI_DEVICE(0x8086, 0x38c8),
2465 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2466 	{ PCI_DEVICE(0x8086, 0x4dc8),
2467 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2468 	/* Tigerlake */
2469 	{ PCI_DEVICE(0x8086, 0xa0c8),
2470 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2471 	/* Tigerlake-H */
2472 	{ PCI_DEVICE(0x8086, 0x43c8),
2473 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2474 	/* DG1 */
2475 	{ PCI_DEVICE(0x8086, 0x490d),
2476 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2477 	/* Alderlake-S */
2478 	{ PCI_DEVICE(0x8086, 0x7ad0),
2479 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2480 	/* Alderlake-P */
2481 	{ PCI_DEVICE(0x8086, 0x51c8),
2482 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2483 	/* Alderlake-M */
2484 	{ PCI_DEVICE(0x8086, 0x51cc),
2485 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2486 	/* Elkhart Lake */
2487 	{ PCI_DEVICE(0x8086, 0x4b55),
2488 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2489 	{ PCI_DEVICE(0x8086, 0x4b58),
2490 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2491 	/* Broxton-P(Apollolake) */
2492 	{ PCI_DEVICE(0x8086, 0x5a98),
2493 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2494 	/* Broxton-T */
2495 	{ PCI_DEVICE(0x8086, 0x1a98),
2496 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2497 	/* Gemini-Lake */
2498 	{ PCI_DEVICE(0x8086, 0x3198),
2499 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2500 	/* Haswell */
2501 	{ PCI_DEVICE(0x8086, 0x0a0c),
2502 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2503 	{ PCI_DEVICE(0x8086, 0x0c0c),
2504 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2505 	{ PCI_DEVICE(0x8086, 0x0d0c),
2506 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2507 	/* Broadwell */
2508 	{ PCI_DEVICE(0x8086, 0x160c),
2509 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2510 	/* 5 Series/3400 */
2511 	{ PCI_DEVICE(0x8086, 0x3b56),
2512 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2513 	/* Poulsbo */
2514 	{ PCI_DEVICE(0x8086, 0x811b),
2515 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2516 	/* Oaktrail */
2517 	{ PCI_DEVICE(0x8086, 0x080a),
2518 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2519 	/* BayTrail */
2520 	{ PCI_DEVICE(0x8086, 0x0f04),
2521 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2522 	/* Braswell */
2523 	{ PCI_DEVICE(0x8086, 0x2284),
2524 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2525 	/* ICH6 */
2526 	{ PCI_DEVICE(0x8086, 0x2668),
2527 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2528 	/* ICH7 */
2529 	{ PCI_DEVICE(0x8086, 0x27d8),
2530 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2531 	/* ESB2 */
2532 	{ PCI_DEVICE(0x8086, 0x269a),
2533 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2534 	/* ICH8 */
2535 	{ PCI_DEVICE(0x8086, 0x284b),
2536 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2537 	/* ICH9 */
2538 	{ PCI_DEVICE(0x8086, 0x293e),
2539 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2540 	/* ICH9 */
2541 	{ PCI_DEVICE(0x8086, 0x293f),
2542 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2543 	/* ICH10 */
2544 	{ PCI_DEVICE(0x8086, 0x3a3e),
2545 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2546 	/* ICH10 */
2547 	{ PCI_DEVICE(0x8086, 0x3a6e),
2548 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2549 	/* Generic Intel */
2550 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2551 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2552 	  .class_mask = 0xffffff,
2553 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2554 	/* ATI SB 450/600/700/800/900 */
2555 	{ PCI_DEVICE(0x1002, 0x437b),
2556 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2557 	{ PCI_DEVICE(0x1002, 0x4383),
2558 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2559 	/* AMD Hudson */
2560 	{ PCI_DEVICE(0x1022, 0x780d),
2561 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2562 	/* AMD, X370 & co */
2563 	{ PCI_DEVICE(0x1022, 0x1457),
2564 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2565 	/* AMD, X570 & co */
2566 	{ PCI_DEVICE(0x1022, 0x1487),
2567 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2568 	/* AMD Stoney */
2569 	{ PCI_DEVICE(0x1022, 0x157a),
2570 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2571 			 AZX_DCAPS_PM_RUNTIME },
2572 	/* AMD Raven */
2573 	{ PCI_DEVICE(0x1022, 0x15e3),
2574 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2575 	/* ATI HDMI */
2576 	{ PCI_DEVICE(0x1002, 0x0002),
2577 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2578 	  AZX_DCAPS_PM_RUNTIME },
2579 	{ PCI_DEVICE(0x1002, 0x1308),
2580 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2581 	{ PCI_DEVICE(0x1002, 0x157a),
2582 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2583 	{ PCI_DEVICE(0x1002, 0x15b3),
2584 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2585 	{ PCI_DEVICE(0x1002, 0x793b),
2586 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2587 	{ PCI_DEVICE(0x1002, 0x7919),
2588 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2589 	{ PCI_DEVICE(0x1002, 0x960f),
2590 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2591 	{ PCI_DEVICE(0x1002, 0x970f),
2592 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2593 	{ PCI_DEVICE(0x1002, 0x9840),
2594 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2595 	{ PCI_DEVICE(0x1002, 0xaa00),
2596 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2597 	{ PCI_DEVICE(0x1002, 0xaa08),
2598 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2599 	{ PCI_DEVICE(0x1002, 0xaa10),
2600 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2601 	{ PCI_DEVICE(0x1002, 0xaa18),
2602 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2603 	{ PCI_DEVICE(0x1002, 0xaa20),
2604 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2605 	{ PCI_DEVICE(0x1002, 0xaa28),
2606 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2607 	{ PCI_DEVICE(0x1002, 0xaa30),
2608 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2609 	{ PCI_DEVICE(0x1002, 0xaa38),
2610 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2611 	{ PCI_DEVICE(0x1002, 0xaa40),
2612 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2613 	{ PCI_DEVICE(0x1002, 0xaa48),
2614 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2615 	{ PCI_DEVICE(0x1002, 0xaa50),
2616 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2617 	{ PCI_DEVICE(0x1002, 0xaa58),
2618 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2619 	{ PCI_DEVICE(0x1002, 0xaa60),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2621 	{ PCI_DEVICE(0x1002, 0xaa68),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2623 	{ PCI_DEVICE(0x1002, 0xaa80),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2625 	{ PCI_DEVICE(0x1002, 0xaa88),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2627 	{ PCI_DEVICE(0x1002, 0xaa90),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2629 	{ PCI_DEVICE(0x1002, 0xaa98),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2631 	{ PCI_DEVICE(0x1002, 0x9902),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2633 	{ PCI_DEVICE(0x1002, 0xaaa0),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2635 	{ PCI_DEVICE(0x1002, 0xaaa8),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2637 	{ PCI_DEVICE(0x1002, 0xaab0),
2638 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2639 	{ PCI_DEVICE(0x1002, 0xaac0),
2640 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2641 	  AZX_DCAPS_PM_RUNTIME },
2642 	{ PCI_DEVICE(0x1002, 0xaac8),
2643 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2644 	  AZX_DCAPS_PM_RUNTIME },
2645 	{ PCI_DEVICE(0x1002, 0xaad8),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2647 	  AZX_DCAPS_PM_RUNTIME },
2648 	{ PCI_DEVICE(0x1002, 0xaae0),
2649 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2650 	  AZX_DCAPS_PM_RUNTIME },
2651 	{ PCI_DEVICE(0x1002, 0xaae8),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2653 	  AZX_DCAPS_PM_RUNTIME },
2654 	{ PCI_DEVICE(0x1002, 0xaaf0),
2655 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2656 	  AZX_DCAPS_PM_RUNTIME },
2657 	{ PCI_DEVICE(0x1002, 0xaaf8),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2659 	  AZX_DCAPS_PM_RUNTIME },
2660 	{ PCI_DEVICE(0x1002, 0xab00),
2661 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2662 	  AZX_DCAPS_PM_RUNTIME },
2663 	{ PCI_DEVICE(0x1002, 0xab08),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2665 	  AZX_DCAPS_PM_RUNTIME },
2666 	{ PCI_DEVICE(0x1002, 0xab10),
2667 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2668 	  AZX_DCAPS_PM_RUNTIME },
2669 	{ PCI_DEVICE(0x1002, 0xab18),
2670 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2671 	  AZX_DCAPS_PM_RUNTIME },
2672 	{ PCI_DEVICE(0x1002, 0xab20),
2673 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2674 	  AZX_DCAPS_PM_RUNTIME },
2675 	{ PCI_DEVICE(0x1002, 0xab28),
2676 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2677 	  AZX_DCAPS_PM_RUNTIME },
2678 	{ PCI_DEVICE(0x1002, 0xab38),
2679 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2680 	  AZX_DCAPS_PM_RUNTIME },
2681 	/* VIA VT8251/VT8237A */
2682 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2683 	/* VIA GFX VT7122/VX900 */
2684 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2685 	/* VIA GFX VT6122/VX11 */
2686 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2687 	/* SIS966 */
2688 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2689 	/* ULI M5461 */
2690 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2691 	/* NVIDIA MCP */
2692 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2693 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2694 	  .class_mask = 0xffffff,
2695 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2696 	/* Teradici */
2697 	{ PCI_DEVICE(0x6549, 0x1200),
2698 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2699 	{ PCI_DEVICE(0x6549, 0x2200),
2700 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2701 	/* Creative X-Fi (CA0110-IBG) */
2702 	/* CTHDA chips */
2703 	{ PCI_DEVICE(0x1102, 0x0010),
2704 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2705 	{ PCI_DEVICE(0x1102, 0x0012),
2706 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2707 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2708 	/* the following entry conflicts with snd-ctxfi driver,
2709 	 * as ctxfi driver mutates from HD-audio to native mode with
2710 	 * a special command sequence.
2711 	 */
2712 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2713 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2714 	  .class_mask = 0xffffff,
2715 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2716 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2717 #else
2718 	/* this entry seems still valid -- i.e. without emu20kx chip */
2719 	{ PCI_DEVICE(0x1102, 0x0009),
2720 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2721 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2722 #endif
2723 	/* CM8888 */
2724 	{ PCI_DEVICE(0x13f6, 0x5011),
2725 	  .driver_data = AZX_DRIVER_CMEDIA |
2726 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2727 	/* Vortex86MX */
2728 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2729 	/* VMware HDAudio */
2730 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2731 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2732 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2733 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2734 	  .class_mask = 0xffffff,
2735 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2736 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2737 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2738 	  .class_mask = 0xffffff,
2739 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2740 	/* Zhaoxin */
2741 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2742 	{ 0, }
2743 };
2744 MODULE_DEVICE_TABLE(pci, azx_ids);
2745 
2746 /* pci_driver definition */
2747 static struct pci_driver azx_driver = {
2748 	.name = KBUILD_MODNAME,
2749 	.id_table = azx_ids,
2750 	.probe = azx_probe,
2751 	.remove = azx_remove,
2752 	.shutdown = azx_shutdown,
2753 	.driver = {
2754 		.pm = AZX_PM_OPS,
2755 	},
2756 };
2757 
2758 module_pci_driver(azx_driver);
2759