xref: /linux/sound/pci/hda/hda_intel.c (revision 6fdcba32711044c35c0e1b094cbd8f3f0b4472c9)
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 
40 #ifdef CONFIG_X86
41 /* for snoop control */
42 #include <asm/pgtable.h>
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 dsp_driver = 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(dsp_driver, bool, 0444);
164 MODULE_PARM_DESC(dsp_driver, "Allow DSP driver selection (bypass this driver) "
165 			     "(0=off, 1=on) (default=1)");
166 
167 #ifdef CONFIG_PM
168 static int param_set_xint(const char *val, const struct kernel_param *kp);
169 static const struct kernel_param_ops param_ops_xint = {
170 	.set = param_set_xint,
171 	.get = param_get_int,
172 };
173 #define param_check_xint param_check_int
174 
175 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
176 module_param(power_save, xint, 0644);
177 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
178 		 "(in second, 0 = disable).");
179 
180 static bool pm_blacklist = true;
181 module_param(pm_blacklist, bool, 0644);
182 MODULE_PARM_DESC(pm_blacklist, "Enable power-management blacklist");
183 
184 /* reset the HD-audio controller in power save mode.
185  * this may give more power-saving, but will take longer time to
186  * wake up.
187  */
188 static bool power_save_controller = 1;
189 module_param(power_save_controller, bool, 0644);
190 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
191 #else
192 #define power_save	0
193 #endif /* CONFIG_PM */
194 
195 static int align_buffer_size = -1;
196 module_param(align_buffer_size, bint, 0644);
197 MODULE_PARM_DESC(align_buffer_size,
198 		"Force buffer and period sizes to be multiple of 128 bytes.");
199 
200 #ifdef CONFIG_X86
201 static int hda_snoop = -1;
202 module_param_named(snoop, hda_snoop, bint, 0444);
203 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
204 #else
205 #define hda_snoop		true
206 #endif
207 
208 
209 MODULE_LICENSE("GPL");
210 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
211 			 "{Intel, ICH6M},"
212 			 "{Intel, ICH7},"
213 			 "{Intel, ESB2},"
214 			 "{Intel, ICH8},"
215 			 "{Intel, ICH9},"
216 			 "{Intel, ICH10},"
217 			 "{Intel, PCH},"
218 			 "{Intel, CPT},"
219 			 "{Intel, PPT},"
220 			 "{Intel, LPT},"
221 			 "{Intel, LPT_LP},"
222 			 "{Intel, WPT_LP},"
223 			 "{Intel, SPT},"
224 			 "{Intel, SPT_LP},"
225 			 "{Intel, HPT},"
226 			 "{Intel, PBG},"
227 			 "{Intel, SCH},"
228 			 "{ATI, SB450},"
229 			 "{ATI, SB600},"
230 			 "{ATI, RS600},"
231 			 "{ATI, RS690},"
232 			 "{ATI, RS780},"
233 			 "{ATI, R600},"
234 			 "{ATI, RV630},"
235 			 "{ATI, RV610},"
236 			 "{ATI, RV670},"
237 			 "{ATI, RV635},"
238 			 "{ATI, RV620},"
239 			 "{ATI, RV770},"
240 			 "{VIA, VT8251},"
241 			 "{VIA, VT8237A},"
242 			 "{SiS, SIS966},"
243 			 "{ULI, M5461}}");
244 MODULE_DESCRIPTION("Intel HDA driver");
245 
246 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
247 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
248 #define SUPPORT_VGA_SWITCHEROO
249 #endif
250 #endif
251 
252 
253 /*
254  */
255 
256 /* driver types */
257 enum {
258 	AZX_DRIVER_ICH,
259 	AZX_DRIVER_PCH,
260 	AZX_DRIVER_SCH,
261 	AZX_DRIVER_SKL,
262 	AZX_DRIVER_HDMI,
263 	AZX_DRIVER_ATI,
264 	AZX_DRIVER_ATIHDMI,
265 	AZX_DRIVER_ATIHDMI_NS,
266 	AZX_DRIVER_VIA,
267 	AZX_DRIVER_SIS,
268 	AZX_DRIVER_ULI,
269 	AZX_DRIVER_NVIDIA,
270 	AZX_DRIVER_TERA,
271 	AZX_DRIVER_CTX,
272 	AZX_DRIVER_CTHDA,
273 	AZX_DRIVER_CMEDIA,
274 	AZX_DRIVER_ZHAOXIN,
275 	AZX_DRIVER_GENERIC,
276 	AZX_NUM_DRIVERS, /* keep this as last entry */
277 };
278 
279 #define azx_get_snoop_type(chip) \
280 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
281 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
282 
283 /* quirks for old Intel chipsets */
284 #define AZX_DCAPS_INTEL_ICH \
285 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
286 
287 /* quirks for Intel PCH */
288 #define AZX_DCAPS_INTEL_PCH_BASE \
289 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
290 	 AZX_DCAPS_SNOOP_TYPE(SCH))
291 
292 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
293 #define AZX_DCAPS_INTEL_PCH_NOPM \
294 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
295 
296 /* PCH for HSW/BDW; with runtime PM */
297 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
298 #define AZX_DCAPS_INTEL_PCH \
299 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
300 
301 /* HSW HDMI */
302 #define AZX_DCAPS_INTEL_HASWELL \
303 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
304 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
305 	 AZX_DCAPS_SNOOP_TYPE(SCH))
306 
307 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
308 #define AZX_DCAPS_INTEL_BROADWELL \
309 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
310 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
311 	 AZX_DCAPS_SNOOP_TYPE(SCH))
312 
313 #define AZX_DCAPS_INTEL_BAYTRAIL \
314 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
315 
316 #define AZX_DCAPS_INTEL_BRASWELL \
317 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
318 	 AZX_DCAPS_I915_COMPONENT)
319 
320 #define AZX_DCAPS_INTEL_SKYLAKE \
321 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
322 	 AZX_DCAPS_SYNC_WRITE |\
323 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
324 
325 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
326 
327 /* quirks for ATI SB / AMD Hudson */
328 #define AZX_DCAPS_PRESET_ATI_SB \
329 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
330 	 AZX_DCAPS_SNOOP_TYPE(ATI))
331 
332 /* quirks for ATI/AMD HDMI */
333 #define AZX_DCAPS_PRESET_ATI_HDMI \
334 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
335 	 AZX_DCAPS_NO_MSI64)
336 
337 /* quirks for ATI HDMI with snoop off */
338 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
339 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
340 
341 /* quirks for AMD SB */
342 #define AZX_DCAPS_PRESET_AMD_SB \
343 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_AMD_WORKAROUND |\
344 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)
345 
346 /* quirks for Nvidia */
347 #define AZX_DCAPS_PRESET_NVIDIA \
348 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
349 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
350 
351 #define AZX_DCAPS_PRESET_CTHDA \
352 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
353 	 AZX_DCAPS_NO_64BIT |\
354 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
355 
356 /*
357  * vga_switcheroo support
358  */
359 #ifdef SUPPORT_VGA_SWITCHEROO
360 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
361 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
362 #else
363 #define use_vga_switcheroo(chip)	0
364 #define needs_eld_notify_link(chip)	false
365 #endif
366 
367 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
368 					((pci)->device == 0x0c0c) || \
369 					((pci)->device == 0x0d0c) || \
370 					((pci)->device == 0x160c))
371 
372 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
373 
374 static char *driver_short_names[] = {
375 	[AZX_DRIVER_ICH] = "HDA Intel",
376 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
377 	[AZX_DRIVER_SCH] = "HDA Intel MID",
378 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
379 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
380 	[AZX_DRIVER_ATI] = "HDA ATI SB",
381 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
382 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
383 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
384 	[AZX_DRIVER_SIS] = "HDA SIS966",
385 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
386 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
387 	[AZX_DRIVER_TERA] = "HDA Teradici",
388 	[AZX_DRIVER_CTX] = "HDA Creative",
389 	[AZX_DRIVER_CTHDA] = "HDA Creative",
390 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
391 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
392 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
393 };
394 
395 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
396 static void set_default_power_save(struct azx *chip);
397 
398 /*
399  * initialize the PCI registers
400  */
401 /* update bits in a PCI register byte */
402 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
403 			    unsigned char mask, unsigned char val)
404 {
405 	unsigned char data;
406 
407 	pci_read_config_byte(pci, reg, &data);
408 	data &= ~mask;
409 	data |= (val & mask);
410 	pci_write_config_byte(pci, reg, data);
411 }
412 
413 static void azx_init_pci(struct azx *chip)
414 {
415 	int snoop_type = azx_get_snoop_type(chip);
416 
417 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
418 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
419 	 * Ensuring these bits are 0 clears playback static on some HD Audio
420 	 * codecs.
421 	 * The PCI register TCSEL is defined in the Intel manuals.
422 	 */
423 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
424 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
425 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
426 	}
427 
428 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
429 	 * we need to enable snoop.
430 	 */
431 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
432 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
433 			azx_snoop(chip));
434 		update_pci_byte(chip->pci,
435 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
436 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
437 	}
438 
439 	/* For NVIDIA HDA, enable snoop */
440 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
441 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
442 			azx_snoop(chip));
443 		update_pci_byte(chip->pci,
444 				NVIDIA_HDA_TRANSREG_ADDR,
445 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
446 		update_pci_byte(chip->pci,
447 				NVIDIA_HDA_ISTRM_COH,
448 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
449 		update_pci_byte(chip->pci,
450 				NVIDIA_HDA_OSTRM_COH,
451 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
452 	}
453 
454 	/* Enable SCH/PCH snoop if needed */
455 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
456 		unsigned short snoop;
457 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
458 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
459 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
460 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
461 			if (!azx_snoop(chip))
462 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
463 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
464 			pci_read_config_word(chip->pci,
465 				INTEL_SCH_HDA_DEVC, &snoop);
466 		}
467 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
468 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
469 			"Disabled" : "Enabled");
470         }
471 }
472 
473 /*
474  * In BXT-P A0, HD-Audio DMA requests is later than expected,
475  * and makes an audio stream sensitive to system latencies when
476  * 24/32 bits are playing.
477  * Adjusting threshold of DMA fifo to force the DMA request
478  * sooner to improve latency tolerance at the expense of power.
479  */
480 static void bxt_reduce_dma_latency(struct azx *chip)
481 {
482 	u32 val;
483 
484 	val = azx_readl(chip, VS_EM4L);
485 	val &= (0x3 << 20);
486 	azx_writel(chip, VS_EM4L, val);
487 }
488 
489 /*
490  * ML_LCAP bits:
491  *  bit 0: 6 MHz Supported
492  *  bit 1: 12 MHz Supported
493  *  bit 2: 24 MHz Supported
494  *  bit 3: 48 MHz Supported
495  *  bit 4: 96 MHz Supported
496  *  bit 5: 192 MHz Supported
497  */
498 static int intel_get_lctl_scf(struct azx *chip)
499 {
500 	struct hdac_bus *bus = azx_bus(chip);
501 	static int preferred_bits[] = { 2, 3, 1, 4, 5 };
502 	u32 val, t;
503 	int i;
504 
505 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
506 
507 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
508 		t = preferred_bits[i];
509 		if (val & (1 << t))
510 			return t;
511 	}
512 
513 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
514 	return 0;
515 }
516 
517 static int intel_ml_lctl_set_power(struct azx *chip, int state)
518 {
519 	struct hdac_bus *bus = azx_bus(chip);
520 	u32 val;
521 	int timeout;
522 
523 	/*
524 	 * the codecs are sharing the first link setting by default
525 	 * If other links are enabled for stream, they need similar fix
526 	 */
527 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
528 	val &= ~AZX_MLCTL_SPA;
529 	val |= state << AZX_MLCTL_SPA_SHIFT;
530 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
531 	/* wait for CPA */
532 	timeout = 50;
533 	while (timeout) {
534 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
535 		    AZX_MLCTL_CPA) == (state << AZX_MLCTL_CPA_SHIFT))
536 			return 0;
537 		timeout--;
538 		udelay(10);
539 	}
540 
541 	return -1;
542 }
543 
544 static void intel_init_lctl(struct azx *chip)
545 {
546 	struct hdac_bus *bus = azx_bus(chip);
547 	u32 val;
548 	int ret;
549 
550 	/* 0. check lctl register value is correct or not */
551 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
552 	/* if SCF is already set, let's use it */
553 	if ((val & ML_LCTL_SCF_MASK) != 0)
554 		return;
555 
556 	/*
557 	 * Before operating on SPA, CPA must match SPA.
558 	 * Any deviation may result in undefined behavior.
559 	 */
560 	if (((val & AZX_MLCTL_SPA) >> AZX_MLCTL_SPA_SHIFT) !=
561 		((val & AZX_MLCTL_CPA) >> AZX_MLCTL_CPA_SHIFT))
562 		return;
563 
564 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
565 	ret = intel_ml_lctl_set_power(chip, 0);
566 	udelay(100);
567 	if (ret)
568 		goto set_spa;
569 
570 	/* 2. update SCF to select a properly audio clock*/
571 	val &= ~ML_LCTL_SCF_MASK;
572 	val |= intel_get_lctl_scf(chip);
573 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
574 
575 set_spa:
576 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
577 	intel_ml_lctl_set_power(chip, 1);
578 	udelay(100);
579 }
580 
581 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
582 {
583 	struct hdac_bus *bus = azx_bus(chip);
584 	struct pci_dev *pci = chip->pci;
585 	u32 val;
586 
587 	snd_hdac_set_codec_wakeup(bus, true);
588 	if (chip->driver_type == AZX_DRIVER_SKL) {
589 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
590 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
591 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
592 	}
593 	azx_init_chip(chip, full_reset);
594 	if (chip->driver_type == AZX_DRIVER_SKL) {
595 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
596 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
597 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
598 	}
599 
600 	snd_hdac_set_codec_wakeup(bus, false);
601 
602 	/* reduce dma latency to avoid noise */
603 	if (IS_BXT(pci))
604 		bxt_reduce_dma_latency(chip);
605 
606 	if (bus->mlcap != NULL)
607 		intel_init_lctl(chip);
608 }
609 
610 /* calculate runtime delay from LPIB */
611 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
612 				   unsigned int pos)
613 {
614 	struct snd_pcm_substream *substream = azx_dev->core.substream;
615 	int stream = substream->stream;
616 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
617 	int delay;
618 
619 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
620 		delay = pos - lpib_pos;
621 	else
622 		delay = lpib_pos - pos;
623 	if (delay < 0) {
624 		if (delay >= azx_dev->core.delay_negative_threshold)
625 			delay = 0;
626 		else
627 			delay += azx_dev->core.bufsize;
628 	}
629 
630 	if (delay >= azx_dev->core.period_bytes) {
631 		dev_info(chip->card->dev,
632 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
633 			 delay, azx_dev->core.period_bytes);
634 		delay = 0;
635 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
636 		chip->get_delay[stream] = NULL;
637 	}
638 
639 	return bytes_to_frames(substream->runtime, delay);
640 }
641 
642 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
643 
644 /* called from IRQ */
645 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
646 {
647 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
648 	int ok;
649 
650 	ok = azx_position_ok(chip, azx_dev);
651 	if (ok == 1) {
652 		azx_dev->irq_pending = 0;
653 		return ok;
654 	} else if (ok == 0) {
655 		/* bogus IRQ, process it later */
656 		azx_dev->irq_pending = 1;
657 		schedule_work(&hda->irq_pending_work);
658 	}
659 	return 0;
660 }
661 
662 #define display_power(chip, enable) \
663 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
664 
665 /*
666  * Check whether the current DMA position is acceptable for updating
667  * periods.  Returns non-zero if it's OK.
668  *
669  * Many HD-audio controllers appear pretty inaccurate about
670  * the update-IRQ timing.  The IRQ is issued before actually the
671  * data is processed.  So, we need to process it afterwords in a
672  * workqueue.
673  */
674 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
675 {
676 	struct snd_pcm_substream *substream = azx_dev->core.substream;
677 	int stream = substream->stream;
678 	u32 wallclk;
679 	unsigned int pos;
680 
681 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
682 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
683 		return -1;	/* bogus (too early) interrupt */
684 
685 	if (chip->get_position[stream])
686 		pos = chip->get_position[stream](chip, azx_dev);
687 	else { /* use the position buffer as default */
688 		pos = azx_get_pos_posbuf(chip, azx_dev);
689 		if (!pos || pos == (u32)-1) {
690 			dev_info(chip->card->dev,
691 				 "Invalid position buffer, using LPIB read method instead.\n");
692 			chip->get_position[stream] = azx_get_pos_lpib;
693 			if (chip->get_position[0] == azx_get_pos_lpib &&
694 			    chip->get_position[1] == azx_get_pos_lpib)
695 				azx_bus(chip)->use_posbuf = false;
696 			pos = azx_get_pos_lpib(chip, azx_dev);
697 			chip->get_delay[stream] = NULL;
698 		} else {
699 			chip->get_position[stream] = azx_get_pos_posbuf;
700 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
701 				chip->get_delay[stream] = azx_get_delay_from_lpib;
702 		}
703 	}
704 
705 	if (pos >= azx_dev->core.bufsize)
706 		pos = 0;
707 
708 	if (WARN_ONCE(!azx_dev->core.period_bytes,
709 		      "hda-intel: zero azx_dev->period_bytes"))
710 		return -1; /* this shouldn't happen! */
711 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
712 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
713 		/* NG - it's below the first next period boundary */
714 		return chip->bdl_pos_adj ? 0 : -1;
715 	azx_dev->core.start_wallclk += wallclk;
716 	return 1; /* OK, it's fine */
717 }
718 
719 /*
720  * The work for pending PCM period updates.
721  */
722 static void azx_irq_pending_work(struct work_struct *work)
723 {
724 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
725 	struct azx *chip = &hda->chip;
726 	struct hdac_bus *bus = azx_bus(chip);
727 	struct hdac_stream *s;
728 	int pending, ok;
729 
730 	if (!hda->irq_pending_warned) {
731 		dev_info(chip->card->dev,
732 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
733 			 chip->card->number);
734 		hda->irq_pending_warned = 1;
735 	}
736 
737 	for (;;) {
738 		pending = 0;
739 		spin_lock_irq(&bus->reg_lock);
740 		list_for_each_entry(s, &bus->stream_list, list) {
741 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
742 			if (!azx_dev->irq_pending ||
743 			    !s->substream ||
744 			    !s->running)
745 				continue;
746 			ok = azx_position_ok(chip, azx_dev);
747 			if (ok > 0) {
748 				azx_dev->irq_pending = 0;
749 				spin_unlock(&bus->reg_lock);
750 				snd_pcm_period_elapsed(s->substream);
751 				spin_lock(&bus->reg_lock);
752 			} else if (ok < 0) {
753 				pending = 0;	/* too early */
754 			} else
755 				pending++;
756 		}
757 		spin_unlock_irq(&bus->reg_lock);
758 		if (!pending)
759 			return;
760 		msleep(1);
761 	}
762 }
763 
764 /* clear irq_pending flags and assure no on-going workq */
765 static void azx_clear_irq_pending(struct azx *chip)
766 {
767 	struct hdac_bus *bus = azx_bus(chip);
768 	struct hdac_stream *s;
769 
770 	spin_lock_irq(&bus->reg_lock);
771 	list_for_each_entry(s, &bus->stream_list, list) {
772 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
773 		azx_dev->irq_pending = 0;
774 	}
775 	spin_unlock_irq(&bus->reg_lock);
776 }
777 
778 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
779 {
780 	struct hdac_bus *bus = azx_bus(chip);
781 
782 	if (request_irq(chip->pci->irq, azx_interrupt,
783 			chip->msi ? 0 : IRQF_SHARED,
784 			chip->card->irq_descr, chip)) {
785 		dev_err(chip->card->dev,
786 			"unable to grab IRQ %d, disabling device\n",
787 			chip->pci->irq);
788 		if (do_disconnect)
789 			snd_card_disconnect(chip->card);
790 		return -1;
791 	}
792 	bus->irq = chip->pci->irq;
793 	pci_intx(chip->pci, !chip->msi);
794 	return 0;
795 }
796 
797 /* get the current DMA position with correction on VIA chips */
798 static unsigned int azx_via_get_position(struct azx *chip,
799 					 struct azx_dev *azx_dev)
800 {
801 	unsigned int link_pos, mini_pos, bound_pos;
802 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
803 	unsigned int fifo_size;
804 
805 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
806 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
807 		/* Playback, no problem using link position */
808 		return link_pos;
809 	}
810 
811 	/* Capture */
812 	/* For new chipset,
813 	 * use mod to get the DMA position just like old chipset
814 	 */
815 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
816 	mod_dma_pos %= azx_dev->core.period_bytes;
817 
818 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
819 
820 	if (azx_dev->insufficient) {
821 		/* Link position never gather than FIFO size */
822 		if (link_pos <= fifo_size)
823 			return 0;
824 
825 		azx_dev->insufficient = 0;
826 	}
827 
828 	if (link_pos <= fifo_size)
829 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
830 	else
831 		mini_pos = link_pos - fifo_size;
832 
833 	/* Find nearest previous boudary */
834 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
835 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
836 	if (mod_link_pos >= fifo_size)
837 		bound_pos = link_pos - mod_link_pos;
838 	else if (mod_dma_pos >= mod_mini_pos)
839 		bound_pos = mini_pos - mod_mini_pos;
840 	else {
841 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
842 		if (bound_pos >= azx_dev->core.bufsize)
843 			bound_pos = 0;
844 	}
845 
846 	/* Calculate real DMA position we want */
847 	return bound_pos + mod_dma_pos;
848 }
849 
850 #define AMD_FIFO_SIZE	32
851 
852 /* get the current DMA position with FIFO size correction */
853 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
854 {
855 	struct snd_pcm_substream *substream = azx_dev->core.substream;
856 	struct snd_pcm_runtime *runtime = substream->runtime;
857 	unsigned int pos, delay;
858 
859 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
860 	if (!runtime)
861 		return pos;
862 
863 	runtime->delay = AMD_FIFO_SIZE;
864 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
865 	if (azx_dev->insufficient) {
866 		if (pos < delay) {
867 			delay = pos;
868 			runtime->delay = bytes_to_frames(runtime, pos);
869 		} else {
870 			azx_dev->insufficient = 0;
871 		}
872 	}
873 
874 	/* correct the DMA position for capture stream */
875 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
876 		if (pos < delay)
877 			pos += azx_dev->core.bufsize;
878 		pos -= delay;
879 	}
880 
881 	return pos;
882 }
883 
884 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
885 				   unsigned int pos)
886 {
887 	struct snd_pcm_substream *substream = azx_dev->core.substream;
888 
889 	/* just read back the calculated value in the above */
890 	return substream->runtime->delay;
891 }
892 
893 static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
894 					 struct azx_dev *azx_dev)
895 {
896 	return _snd_hdac_chip_readl(azx_bus(chip),
897 				    AZX_REG_VS_SDXDPIB_XBASE +
898 				    (AZX_REG_VS_SDXDPIB_XINTERVAL *
899 				     azx_dev->core.index));
900 }
901 
902 /* get the current DMA position with correction on SKL+ chips */
903 static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
904 {
905 	/* DPIB register gives a more accurate position for playback */
906 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
907 		return azx_skl_get_dpib_pos(chip, azx_dev);
908 
909 	/* For capture, we need to read posbuf, but it requires a delay
910 	 * for the possible boundary overlap; the read of DPIB fetches the
911 	 * actual posbuf
912 	 */
913 	udelay(20);
914 	azx_skl_get_dpib_pos(chip, azx_dev);
915 	return azx_get_pos_posbuf(chip, azx_dev);
916 }
917 
918 #ifdef CONFIG_PM
919 static DEFINE_MUTEX(card_list_lock);
920 static LIST_HEAD(card_list);
921 
922 static void azx_add_card_list(struct azx *chip)
923 {
924 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
925 	mutex_lock(&card_list_lock);
926 	list_add(&hda->list, &card_list);
927 	mutex_unlock(&card_list_lock);
928 }
929 
930 static void azx_del_card_list(struct azx *chip)
931 {
932 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
933 	mutex_lock(&card_list_lock);
934 	list_del_init(&hda->list);
935 	mutex_unlock(&card_list_lock);
936 }
937 
938 /* trigger power-save check at writing parameter */
939 static int param_set_xint(const char *val, const struct kernel_param *kp)
940 {
941 	struct hda_intel *hda;
942 	struct azx *chip;
943 	int prev = power_save;
944 	int ret = param_set_int(val, kp);
945 
946 	if (ret || prev == power_save)
947 		return ret;
948 
949 	mutex_lock(&card_list_lock);
950 	list_for_each_entry(hda, &card_list, list) {
951 		chip = &hda->chip;
952 		if (!hda->probe_continued || chip->disabled)
953 			continue;
954 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
955 	}
956 	mutex_unlock(&card_list_lock);
957 	return 0;
958 }
959 
960 /*
961  * power management
962  */
963 static bool azx_is_pm_ready(struct snd_card *card)
964 {
965 	struct azx *chip;
966 	struct hda_intel *hda;
967 
968 	if (!card)
969 		return false;
970 	chip = card->private_data;
971 	hda = container_of(chip, struct hda_intel, chip);
972 	if (chip->disabled || hda->init_failed || !chip->running)
973 		return false;
974 	return true;
975 }
976 
977 static void __azx_runtime_suspend(struct azx *chip)
978 {
979 	azx_stop_chip(chip);
980 	azx_enter_link_reset(chip);
981 	azx_clear_irq_pending(chip);
982 	display_power(chip, false);
983 }
984 
985 static void __azx_runtime_resume(struct azx *chip, bool from_rt)
986 {
987 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
988 	struct hdac_bus *bus = azx_bus(chip);
989 	struct hda_codec *codec;
990 	int status;
991 
992 	display_power(chip, true);
993 	if (hda->need_i915_power)
994 		snd_hdac_i915_set_bclk(bus);
995 
996 	/* Read STATESTS before controller reset */
997 	status = azx_readw(chip, STATESTS);
998 
999 	azx_init_pci(chip);
1000 	hda_intel_init_chip(chip, true);
1001 
1002 	if (status && from_rt) {
1003 		list_for_each_codec(codec, &chip->bus)
1004 			if (status & (1 << codec->addr))
1005 				schedule_delayed_work(&codec->jackpoll_work,
1006 						      codec->jackpoll_interval);
1007 	}
1008 
1009 	/* power down again for link-controlled chips */
1010 	if (!hda->need_i915_power)
1011 		display_power(chip, false);
1012 }
1013 
1014 #ifdef CONFIG_PM_SLEEP
1015 static int azx_suspend(struct device *dev)
1016 {
1017 	struct snd_card *card = dev_get_drvdata(dev);
1018 	struct azx *chip;
1019 	struct hdac_bus *bus;
1020 
1021 	if (!azx_is_pm_ready(card))
1022 		return 0;
1023 
1024 	chip = card->private_data;
1025 	bus = azx_bus(chip);
1026 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1027 	__azx_runtime_suspend(chip);
1028 	if (bus->irq >= 0) {
1029 		free_irq(bus->irq, chip);
1030 		bus->irq = -1;
1031 	}
1032 
1033 	if (chip->msi)
1034 		pci_disable_msi(chip->pci);
1035 
1036 	trace_azx_suspend(chip);
1037 	return 0;
1038 }
1039 
1040 static int azx_resume(struct device *dev)
1041 {
1042 	struct snd_card *card = dev_get_drvdata(dev);
1043 	struct azx *chip;
1044 
1045 	if (!azx_is_pm_ready(card))
1046 		return 0;
1047 
1048 	chip = card->private_data;
1049 	if (chip->msi)
1050 		if (pci_enable_msi(chip->pci) < 0)
1051 			chip->msi = 0;
1052 	if (azx_acquire_irq(chip, 1) < 0)
1053 		return -EIO;
1054 	__azx_runtime_resume(chip, false);
1055 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1056 
1057 	trace_azx_resume(chip);
1058 	return 0;
1059 }
1060 
1061 /* put codec down to D3 at hibernation for Intel SKL+;
1062  * otherwise BIOS may still access the codec and screw up the driver
1063  */
1064 static int azx_freeze_noirq(struct device *dev)
1065 {
1066 	struct snd_card *card = dev_get_drvdata(dev);
1067 	struct azx *chip = card->private_data;
1068 	struct pci_dev *pci = to_pci_dev(dev);
1069 
1070 	if (chip->driver_type == AZX_DRIVER_SKL)
1071 		pci_set_power_state(pci, PCI_D3hot);
1072 
1073 	return 0;
1074 }
1075 
1076 static int azx_thaw_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 (chip->driver_type == AZX_DRIVER_SKL)
1083 		pci_set_power_state(pci, PCI_D0);
1084 
1085 	return 0;
1086 }
1087 #endif /* CONFIG_PM_SLEEP */
1088 
1089 static int azx_runtime_suspend(struct device *dev)
1090 {
1091 	struct snd_card *card = dev_get_drvdata(dev);
1092 	struct azx *chip;
1093 
1094 	if (!azx_is_pm_ready(card))
1095 		return 0;
1096 	chip = card->private_data;
1097 	if (!azx_has_pm_runtime(chip))
1098 		return 0;
1099 
1100 	/* enable controller wake up event */
1101 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
1102 		  STATESTS_INT_MASK);
1103 
1104 	__azx_runtime_suspend(chip);
1105 	trace_azx_runtime_suspend(chip);
1106 	return 0;
1107 }
1108 
1109 static int azx_runtime_resume(struct device *dev)
1110 {
1111 	struct snd_card *card = dev_get_drvdata(dev);
1112 	struct azx *chip;
1113 
1114 	if (!azx_is_pm_ready(card))
1115 		return 0;
1116 	chip = card->private_data;
1117 	if (!azx_has_pm_runtime(chip))
1118 		return 0;
1119 	__azx_runtime_resume(chip, true);
1120 
1121 	/* disable controller Wake Up event*/
1122 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1123 			~STATESTS_INT_MASK);
1124 
1125 	trace_azx_runtime_resume(chip);
1126 	return 0;
1127 }
1128 
1129 static int azx_runtime_idle(struct device *dev)
1130 {
1131 	struct snd_card *card = dev_get_drvdata(dev);
1132 	struct azx *chip;
1133 	struct hda_intel *hda;
1134 
1135 	if (!card)
1136 		return 0;
1137 
1138 	chip = card->private_data;
1139 	hda = container_of(chip, struct hda_intel, chip);
1140 	if (chip->disabled || hda->init_failed)
1141 		return 0;
1142 
1143 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1144 	    azx_bus(chip)->codec_powered || !chip->running)
1145 		return -EBUSY;
1146 
1147 	/* ELD notification gets broken when HD-audio bus is off */
1148 	if (needs_eld_notify_link(chip))
1149 		return -EBUSY;
1150 
1151 	return 0;
1152 }
1153 
1154 static const struct dev_pm_ops azx_pm = {
1155 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1156 #ifdef CONFIG_PM_SLEEP
1157 	.freeze_noirq = azx_freeze_noirq,
1158 	.thaw_noirq = azx_thaw_noirq,
1159 #endif
1160 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1161 };
1162 
1163 #define AZX_PM_OPS	&azx_pm
1164 #else
1165 #define azx_add_card_list(chip) /* NOP */
1166 #define azx_del_card_list(chip) /* NOP */
1167 #define AZX_PM_OPS	NULL
1168 #endif /* CONFIG_PM */
1169 
1170 
1171 static int azx_probe_continue(struct azx *chip);
1172 
1173 #ifdef SUPPORT_VGA_SWITCHEROO
1174 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1175 
1176 static void azx_vs_set_state(struct pci_dev *pci,
1177 			     enum vga_switcheroo_state state)
1178 {
1179 	struct snd_card *card = pci_get_drvdata(pci);
1180 	struct azx *chip = card->private_data;
1181 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1182 	struct hda_codec *codec;
1183 	bool disabled;
1184 
1185 	wait_for_completion(&hda->probe_wait);
1186 	if (hda->init_failed)
1187 		return;
1188 
1189 	disabled = (state == VGA_SWITCHEROO_OFF);
1190 	if (chip->disabled == disabled)
1191 		return;
1192 
1193 	if (!hda->probe_continued) {
1194 		chip->disabled = disabled;
1195 		if (!disabled) {
1196 			dev_info(chip->card->dev,
1197 				 "Start delayed initialization\n");
1198 			if (azx_probe_continue(chip) < 0) {
1199 				dev_err(chip->card->dev, "initialization error\n");
1200 				hda->init_failed = true;
1201 			}
1202 		}
1203 	} else {
1204 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1205 			 disabled ? "Disabling" : "Enabling");
1206 		if (disabled) {
1207 			list_for_each_codec(codec, &chip->bus) {
1208 				pm_runtime_suspend(hda_codec_dev(codec));
1209 				pm_runtime_disable(hda_codec_dev(codec));
1210 			}
1211 			pm_runtime_suspend(card->dev);
1212 			pm_runtime_disable(card->dev);
1213 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1214 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1215 			 * put ourselves there */
1216 			pci->current_state = PCI_D3cold;
1217 			chip->disabled = true;
1218 			if (snd_hda_lock_devices(&chip->bus))
1219 				dev_warn(chip->card->dev,
1220 					 "Cannot lock devices!\n");
1221 		} else {
1222 			snd_hda_unlock_devices(&chip->bus);
1223 			chip->disabled = false;
1224 			pm_runtime_enable(card->dev);
1225 			list_for_each_codec(codec, &chip->bus) {
1226 				pm_runtime_enable(hda_codec_dev(codec));
1227 				pm_runtime_resume(hda_codec_dev(codec));
1228 			}
1229 		}
1230 	}
1231 }
1232 
1233 static bool azx_vs_can_switch(struct pci_dev *pci)
1234 {
1235 	struct snd_card *card = pci_get_drvdata(pci);
1236 	struct azx *chip = card->private_data;
1237 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1238 
1239 	wait_for_completion(&hda->probe_wait);
1240 	if (hda->init_failed)
1241 		return false;
1242 	if (chip->disabled || !hda->probe_continued)
1243 		return true;
1244 	if (snd_hda_lock_devices(&chip->bus))
1245 		return false;
1246 	snd_hda_unlock_devices(&chip->bus);
1247 	return true;
1248 }
1249 
1250 /*
1251  * The discrete GPU cannot power down unless the HDA controller runtime
1252  * suspends, so activate runtime PM on codecs even if power_save == 0.
1253  */
1254 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1255 {
1256 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1257 	struct hda_codec *codec;
1258 
1259 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1260 		list_for_each_codec(codec, &chip->bus)
1261 			codec->auto_runtime_pm = 1;
1262 		/* reset the power save setup */
1263 		if (chip->running)
1264 			set_default_power_save(chip);
1265 	}
1266 }
1267 
1268 static void azx_vs_gpu_bound(struct pci_dev *pci,
1269 			     enum vga_switcheroo_client_id client_id)
1270 {
1271 	struct snd_card *card = pci_get_drvdata(pci);
1272 	struct azx *chip = card->private_data;
1273 
1274 	if (client_id == VGA_SWITCHEROO_DIS)
1275 		chip->bus.keep_power = 0;
1276 	setup_vga_switcheroo_runtime_pm(chip);
1277 }
1278 
1279 static void init_vga_switcheroo(struct azx *chip)
1280 {
1281 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1282 	struct pci_dev *p = get_bound_vga(chip->pci);
1283 	struct pci_dev *parent;
1284 	if (p) {
1285 		dev_info(chip->card->dev,
1286 			 "Handle vga_switcheroo audio client\n");
1287 		hda->use_vga_switcheroo = 1;
1288 
1289 		/* cleared in either gpu_bound op or codec probe, or when its
1290 		 * upstream port has _PR3 (i.e. dGPU).
1291 		 */
1292 		parent = pci_upstream_bridge(p);
1293 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1294 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1295 		pci_dev_put(p);
1296 	}
1297 }
1298 
1299 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1300 	.set_gpu_state = azx_vs_set_state,
1301 	.can_switch = azx_vs_can_switch,
1302 	.gpu_bound = azx_vs_gpu_bound,
1303 };
1304 
1305 static int register_vga_switcheroo(struct azx *chip)
1306 {
1307 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1308 	struct pci_dev *p;
1309 	int err;
1310 
1311 	if (!hda->use_vga_switcheroo)
1312 		return 0;
1313 
1314 	p = get_bound_vga(chip->pci);
1315 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1316 	pci_dev_put(p);
1317 
1318 	if (err < 0)
1319 		return err;
1320 	hda->vga_switcheroo_registered = 1;
1321 
1322 	return 0;
1323 }
1324 #else
1325 #define init_vga_switcheroo(chip)		/* NOP */
1326 #define register_vga_switcheroo(chip)		0
1327 #define check_hdmi_disabled(pci)	false
1328 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1329 #endif /* SUPPORT_VGA_SWITCHER */
1330 
1331 /*
1332  * destructor
1333  */
1334 static int azx_free(struct azx *chip)
1335 {
1336 	struct pci_dev *pci = chip->pci;
1337 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1338 	struct hdac_bus *bus = azx_bus(chip);
1339 
1340 	if (azx_has_pm_runtime(chip) && chip->running)
1341 		pm_runtime_get_noresume(&pci->dev);
1342 	chip->running = 0;
1343 
1344 	azx_del_card_list(chip);
1345 
1346 	hda->init_failed = 1; /* to be sure */
1347 	complete_all(&hda->probe_wait);
1348 
1349 	if (use_vga_switcheroo(hda)) {
1350 		if (chip->disabled && hda->probe_continued)
1351 			snd_hda_unlock_devices(&chip->bus);
1352 		if (hda->vga_switcheroo_registered)
1353 			vga_switcheroo_unregister_client(chip->pci);
1354 	}
1355 
1356 	if (bus->chip_init) {
1357 		azx_clear_irq_pending(chip);
1358 		azx_stop_all_streams(chip);
1359 		azx_stop_chip(chip);
1360 	}
1361 
1362 	if (bus->irq >= 0)
1363 		free_irq(bus->irq, (void*)chip);
1364 	if (chip->msi)
1365 		pci_disable_msi(chip->pci);
1366 	iounmap(bus->remap_addr);
1367 
1368 	azx_free_stream_pages(chip);
1369 	azx_free_streams(chip);
1370 	snd_hdac_bus_exit(bus);
1371 
1372 	if (chip->region_requested)
1373 		pci_release_regions(chip->pci);
1374 
1375 	pci_disable_device(chip->pci);
1376 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1377 	release_firmware(chip->fw);
1378 #endif
1379 	display_power(chip, false);
1380 
1381 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1382 		snd_hdac_i915_exit(bus);
1383 	kfree(hda);
1384 
1385 	return 0;
1386 }
1387 
1388 static int azx_dev_disconnect(struct snd_device *device)
1389 {
1390 	struct azx *chip = device->device_data;
1391 	struct hdac_bus *bus = azx_bus(chip);
1392 
1393 	chip->bus.shutdown = 1;
1394 	cancel_work_sync(&bus->unsol_work);
1395 
1396 	return 0;
1397 }
1398 
1399 static int azx_dev_free(struct snd_device *device)
1400 {
1401 	return azx_free(device->device_data);
1402 }
1403 
1404 #ifdef SUPPORT_VGA_SWITCHEROO
1405 #ifdef CONFIG_ACPI
1406 /* ATPX is in the integrated GPU's namespace */
1407 static bool atpx_present(void)
1408 {
1409 	struct pci_dev *pdev = NULL;
1410 	acpi_handle dhandle, atpx_handle;
1411 	acpi_status status;
1412 
1413 	while ((pdev = pci_get_class(PCI_BASE_CLASS_DISPLAY << 16, pdev)) != NULL) {
1414 		dhandle = ACPI_HANDLE(&pdev->dev);
1415 		if (dhandle) {
1416 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1417 			if (!ACPI_FAILURE(status)) {
1418 				pci_dev_put(pdev);
1419 				return true;
1420 			}
1421 		}
1422 	}
1423 	return false;
1424 }
1425 #else
1426 static bool atpx_present(void)
1427 {
1428 	return false;
1429 }
1430 #endif
1431 
1432 /*
1433  * Check of disabled HDMI controller by vga_switcheroo
1434  */
1435 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1436 {
1437 	struct pci_dev *p;
1438 
1439 	/* check only discrete GPU */
1440 	switch (pci->vendor) {
1441 	case PCI_VENDOR_ID_ATI:
1442 	case PCI_VENDOR_ID_AMD:
1443 		if (pci->devfn == 1) {
1444 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1445 							pci->bus->number, 0);
1446 			if (p) {
1447 				/* ATPX is in the integrated GPU's ACPI namespace
1448 				 * rather than the dGPU's namespace. However,
1449 				 * the dGPU is the one who is involved in
1450 				 * vgaswitcheroo.
1451 				 */
1452 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1453 				    atpx_present())
1454 					return p;
1455 				pci_dev_put(p);
1456 			}
1457 		}
1458 		break;
1459 	case PCI_VENDOR_ID_NVIDIA:
1460 		if (pci->devfn == 1) {
1461 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1462 							pci->bus->number, 0);
1463 			if (p) {
1464 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1465 					return p;
1466 				pci_dev_put(p);
1467 			}
1468 		}
1469 		break;
1470 	}
1471 	return NULL;
1472 }
1473 
1474 static bool check_hdmi_disabled(struct pci_dev *pci)
1475 {
1476 	bool vga_inactive = false;
1477 	struct pci_dev *p = get_bound_vga(pci);
1478 
1479 	if (p) {
1480 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1481 			vga_inactive = true;
1482 		pci_dev_put(p);
1483 	}
1484 	return vga_inactive;
1485 }
1486 #endif /* SUPPORT_VGA_SWITCHEROO */
1487 
1488 /*
1489  * white/black-listing for position_fix
1490  */
1491 static struct snd_pci_quirk position_fix_list[] = {
1492 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1493 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1494 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1495 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1496 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1497 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1498 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1499 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1500 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1501 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1502 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1503 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1504 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1505 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1506 	{}
1507 };
1508 
1509 static int check_position_fix(struct azx *chip, int fix)
1510 {
1511 	const struct snd_pci_quirk *q;
1512 
1513 	switch (fix) {
1514 	case POS_FIX_AUTO:
1515 	case POS_FIX_LPIB:
1516 	case POS_FIX_POSBUF:
1517 	case POS_FIX_VIACOMBO:
1518 	case POS_FIX_COMBO:
1519 	case POS_FIX_SKL:
1520 	case POS_FIX_FIFO:
1521 		return fix;
1522 	}
1523 
1524 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1525 	if (q) {
1526 		dev_info(chip->card->dev,
1527 			 "position_fix set to %d for device %04x:%04x\n",
1528 			 q->value, q->subvendor, q->subdevice);
1529 		return q->value;
1530 	}
1531 
1532 	/* Check VIA/ATI HD Audio Controller exist */
1533 	if (chip->driver_type == AZX_DRIVER_VIA) {
1534 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1535 		return POS_FIX_VIACOMBO;
1536 	}
1537 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1538 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1539 		return POS_FIX_FIFO;
1540 	}
1541 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1542 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1543 		return POS_FIX_LPIB;
1544 	}
1545 	if (chip->driver_type == AZX_DRIVER_SKL) {
1546 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1547 		return POS_FIX_SKL;
1548 	}
1549 	return POS_FIX_AUTO;
1550 }
1551 
1552 static void assign_position_fix(struct azx *chip, int fix)
1553 {
1554 	static azx_get_pos_callback_t callbacks[] = {
1555 		[POS_FIX_AUTO] = NULL,
1556 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1557 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1558 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1559 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1560 		[POS_FIX_SKL] = azx_get_pos_skl,
1561 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1562 	};
1563 
1564 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1565 
1566 	/* combo mode uses LPIB only for playback */
1567 	if (fix == POS_FIX_COMBO)
1568 		chip->get_position[1] = NULL;
1569 
1570 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1571 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1572 		chip->get_delay[0] = chip->get_delay[1] =
1573 			azx_get_delay_from_lpib;
1574 	}
1575 
1576 	if (fix == POS_FIX_FIFO)
1577 		chip->get_delay[0] = chip->get_delay[1] =
1578 			azx_get_delay_from_fifo;
1579 }
1580 
1581 /*
1582  * black-lists for probe_mask
1583  */
1584 static struct snd_pci_quirk probe_mask_list[] = {
1585 	/* Thinkpad often breaks the controller communication when accessing
1586 	 * to the non-working (or non-existing) modem codec slot.
1587 	 */
1588 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1589 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1590 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1591 	/* broken BIOS */
1592 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1593 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1594 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1595 	/* forced codec slots */
1596 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1597 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1598 	/* WinFast VP200 H (Teradici) user reported broken communication */
1599 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1600 	{}
1601 };
1602 
1603 #define AZX_FORCE_CODEC_MASK	0x100
1604 
1605 static void check_probe_mask(struct azx *chip, int dev)
1606 {
1607 	const struct snd_pci_quirk *q;
1608 
1609 	chip->codec_probe_mask = probe_mask[dev];
1610 	if (chip->codec_probe_mask == -1) {
1611 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1612 		if (q) {
1613 			dev_info(chip->card->dev,
1614 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1615 				 q->value, q->subvendor, q->subdevice);
1616 			chip->codec_probe_mask = q->value;
1617 		}
1618 	}
1619 
1620 	/* check forced option */
1621 	if (chip->codec_probe_mask != -1 &&
1622 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1623 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1624 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1625 			 (int)azx_bus(chip)->codec_mask);
1626 	}
1627 }
1628 
1629 /*
1630  * white/black-list for enable_msi
1631  */
1632 static struct snd_pci_quirk msi_black_list[] = {
1633 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1634 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1635 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1636 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1637 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1638 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1639 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1640 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1641 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1642 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1643 	{}
1644 };
1645 
1646 static void check_msi(struct azx *chip)
1647 {
1648 	const struct snd_pci_quirk *q;
1649 
1650 	if (enable_msi >= 0) {
1651 		chip->msi = !!enable_msi;
1652 		return;
1653 	}
1654 	chip->msi = 1;	/* enable MSI as default */
1655 	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1656 	if (q) {
1657 		dev_info(chip->card->dev,
1658 			 "msi for device %04x:%04x set to %d\n",
1659 			 q->subvendor, q->subdevice, q->value);
1660 		chip->msi = q->value;
1661 		return;
1662 	}
1663 
1664 	/* NVidia chipsets seem to cause troubles with MSI */
1665 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1666 		dev_info(chip->card->dev, "Disabling MSI\n");
1667 		chip->msi = 0;
1668 	}
1669 }
1670 
1671 /* check the snoop mode availability */
1672 static void azx_check_snoop_available(struct azx *chip)
1673 {
1674 	int snoop = hda_snoop;
1675 
1676 	if (snoop >= 0) {
1677 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1678 			 snoop ? "snoop" : "non-snoop");
1679 		chip->snoop = snoop;
1680 		chip->uc_buffer = !snoop;
1681 		return;
1682 	}
1683 
1684 	snoop = true;
1685 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1686 	    chip->driver_type == AZX_DRIVER_VIA) {
1687 		/* force to non-snoop mode for a new VIA controller
1688 		 * when BIOS is set
1689 		 */
1690 		u8 val;
1691 		pci_read_config_byte(chip->pci, 0x42, &val);
1692 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1693 				      chip->pci->revision == 0x20))
1694 			snoop = false;
1695 	}
1696 
1697 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1698 		snoop = false;
1699 
1700 	chip->snoop = snoop;
1701 	if (!snoop) {
1702 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1703 		/* C-Media requires non-cached pages only for CORB/RIRB */
1704 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1705 			chip->uc_buffer = true;
1706 	}
1707 }
1708 
1709 static void azx_probe_work(struct work_struct *work)
1710 {
1711 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1712 	azx_probe_continue(&hda->chip);
1713 }
1714 
1715 static int default_bdl_pos_adj(struct azx *chip)
1716 {
1717 	/* some exceptions: Atoms seem problematic with value 1 */
1718 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1719 		switch (chip->pci->device) {
1720 		case 0x0f04: /* Baytrail */
1721 		case 0x2284: /* Braswell */
1722 			return 32;
1723 		}
1724 	}
1725 
1726 	switch (chip->driver_type) {
1727 	case AZX_DRIVER_ICH:
1728 	case AZX_DRIVER_PCH:
1729 		return 1;
1730 	default:
1731 		return 32;
1732 	}
1733 }
1734 
1735 /*
1736  * constructor
1737  */
1738 static const struct hda_controller_ops pci_hda_ops;
1739 
1740 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1741 		      int dev, unsigned int driver_caps,
1742 		      struct azx **rchip)
1743 {
1744 	static struct snd_device_ops ops = {
1745 		.dev_disconnect = azx_dev_disconnect,
1746 		.dev_free = azx_dev_free,
1747 	};
1748 	struct hda_intel *hda;
1749 	struct azx *chip;
1750 	int err;
1751 
1752 	*rchip = NULL;
1753 
1754 	err = pci_enable_device(pci);
1755 	if (err < 0)
1756 		return err;
1757 
1758 	hda = kzalloc(sizeof(*hda), GFP_KERNEL);
1759 	if (!hda) {
1760 		pci_disable_device(pci);
1761 		return -ENOMEM;
1762 	}
1763 
1764 	chip = &hda->chip;
1765 	mutex_init(&chip->open_mutex);
1766 	chip->card = card;
1767 	chip->pci = pci;
1768 	chip->ops = &pci_hda_ops;
1769 	chip->driver_caps = driver_caps;
1770 	chip->driver_type = driver_caps & 0xff;
1771 	check_msi(chip);
1772 	chip->dev_index = dev;
1773 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1774 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1775 	INIT_LIST_HEAD(&chip->pcm_list);
1776 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1777 	INIT_LIST_HEAD(&hda->list);
1778 	init_vga_switcheroo(chip);
1779 	init_completion(&hda->probe_wait);
1780 
1781 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1782 
1783 	check_probe_mask(chip, dev);
1784 
1785 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1786 		chip->fallback_to_single_cmd = 1;
1787 	else /* explicitly set to single_cmd or not */
1788 		chip->single_cmd = single_cmd;
1789 
1790 	azx_check_snoop_available(chip);
1791 
1792 	if (bdl_pos_adj[dev] < 0)
1793 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1794 	else
1795 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1796 
1797 	err = azx_bus_init(chip, model[dev]);
1798 	if (err < 0) {
1799 		kfree(hda);
1800 		pci_disable_device(pci);
1801 		return err;
1802 	}
1803 
1804 	/* use the non-cached pages in non-snoop mode */
1805 	if (!azx_snoop(chip))
1806 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_UC;
1807 
1808 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1809 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1810 		chip->bus.needs_damn_long_delay = 1;
1811 	}
1812 
1813 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1814 	if (err < 0) {
1815 		dev_err(card->dev, "Error creating device [card]!\n");
1816 		azx_free(chip);
1817 		return err;
1818 	}
1819 
1820 	/* continue probing in work context as may trigger request module */
1821 	INIT_WORK(&hda->probe_work, azx_probe_work);
1822 
1823 	*rchip = chip;
1824 
1825 	return 0;
1826 }
1827 
1828 static int azx_first_init(struct azx *chip)
1829 {
1830 	int dev = chip->dev_index;
1831 	struct pci_dev *pci = chip->pci;
1832 	struct snd_card *card = chip->card;
1833 	struct hdac_bus *bus = azx_bus(chip);
1834 	int err;
1835 	unsigned short gcap;
1836 	unsigned int dma_bits = 64;
1837 
1838 #if BITS_PER_LONG != 64
1839 	/* Fix up base address on ULI M5461 */
1840 	if (chip->driver_type == AZX_DRIVER_ULI) {
1841 		u16 tmp3;
1842 		pci_read_config_word(pci, 0x40, &tmp3);
1843 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1844 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1845 	}
1846 #endif
1847 
1848 	err = pci_request_regions(pci, "ICH HD audio");
1849 	if (err < 0)
1850 		return err;
1851 	chip->region_requested = 1;
1852 
1853 	bus->addr = pci_resource_start(pci, 0);
1854 	bus->remap_addr = pci_ioremap_bar(pci, 0);
1855 	if (bus->remap_addr == NULL) {
1856 		dev_err(card->dev, "ioremap error\n");
1857 		return -ENXIO;
1858 	}
1859 
1860 	if (chip->driver_type == AZX_DRIVER_SKL)
1861 		snd_hdac_bus_parse_capabilities(bus);
1862 
1863 	/*
1864 	 * Some Intel CPUs has always running timer (ART) feature and
1865 	 * controller may have Global time sync reporting capability, so
1866 	 * check both of these before declaring synchronized time reporting
1867 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1868 	 */
1869 	chip->gts_present = false;
1870 
1871 #ifdef CONFIG_X86
1872 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1873 		chip->gts_present = true;
1874 #endif
1875 
1876 	if (chip->msi) {
1877 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1878 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1879 			pci->no_64bit_msi = true;
1880 		}
1881 		if (pci_enable_msi(pci) < 0)
1882 			chip->msi = 0;
1883 	}
1884 
1885 	pci_set_master(pci);
1886 	synchronize_irq(bus->irq);
1887 
1888 	gcap = azx_readw(chip, GCAP);
1889 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1890 
1891 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1892 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1893 		dma_bits = 40;
1894 
1895 	/* disable SB600 64bit support for safety */
1896 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1897 		struct pci_dev *p_smbus;
1898 		dma_bits = 40;
1899 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1900 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1901 					 NULL);
1902 		if (p_smbus) {
1903 			if (p_smbus->revision < 0x30)
1904 				gcap &= ~AZX_GCAP_64OK;
1905 			pci_dev_put(p_smbus);
1906 		}
1907 	}
1908 
1909 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1910 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1911 		dma_bits = 40;
1912 
1913 	/* disable 64bit DMA address on some devices */
1914 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1915 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1916 		gcap &= ~AZX_GCAP_64OK;
1917 	}
1918 
1919 	/* disable buffer size rounding to 128-byte multiples if supported */
1920 	if (align_buffer_size >= 0)
1921 		chip->align_buffer_size = !!align_buffer_size;
1922 	else {
1923 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1924 			chip->align_buffer_size = 0;
1925 		else
1926 			chip->align_buffer_size = 1;
1927 	}
1928 
1929 	/* allow 64bit DMA address if supported by H/W */
1930 	if (!(gcap & AZX_GCAP_64OK))
1931 		dma_bits = 32;
1932 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1933 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1934 	} else {
1935 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1936 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1937 	}
1938 
1939 	/* read number of streams from GCAP register instead of using
1940 	 * hardcoded value
1941 	 */
1942 	chip->capture_streams = (gcap >> 8) & 0x0f;
1943 	chip->playback_streams = (gcap >> 12) & 0x0f;
1944 	if (!chip->playback_streams && !chip->capture_streams) {
1945 		/* gcap didn't give any info, switching to old method */
1946 
1947 		switch (chip->driver_type) {
1948 		case AZX_DRIVER_ULI:
1949 			chip->playback_streams = ULI_NUM_PLAYBACK;
1950 			chip->capture_streams = ULI_NUM_CAPTURE;
1951 			break;
1952 		case AZX_DRIVER_ATIHDMI:
1953 		case AZX_DRIVER_ATIHDMI_NS:
1954 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1955 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1956 			break;
1957 		case AZX_DRIVER_GENERIC:
1958 		default:
1959 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1960 			chip->capture_streams = ICH6_NUM_CAPTURE;
1961 			break;
1962 		}
1963 	}
1964 	chip->capture_index_offset = 0;
1965 	chip->playback_index_offset = chip->capture_streams;
1966 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1967 
1968 	/* sanity check for the SDxCTL.STRM field overflow */
1969 	if (chip->num_streams > 15 &&
1970 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1971 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1972 			 "forcing separate stream tags", chip->num_streams);
1973 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1974 	}
1975 
1976 	/* initialize streams */
1977 	err = azx_init_streams(chip);
1978 	if (err < 0)
1979 		return err;
1980 
1981 	err = azx_alloc_stream_pages(chip);
1982 	if (err < 0)
1983 		return err;
1984 
1985 	/* initialize chip */
1986 	azx_init_pci(chip);
1987 
1988 	snd_hdac_i915_set_bclk(bus);
1989 
1990 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1991 
1992 	/* codec detection */
1993 	if (!azx_bus(chip)->codec_mask) {
1994 		dev_err(card->dev, "no codecs found!\n");
1995 		return -ENODEV;
1996 	}
1997 
1998 	if (azx_acquire_irq(chip, 0) < 0)
1999 		return -EBUSY;
2000 
2001 	strcpy(card->driver, "HDA-Intel");
2002 	strlcpy(card->shortname, driver_short_names[chip->driver_type],
2003 		sizeof(card->shortname));
2004 	snprintf(card->longname, sizeof(card->longname),
2005 		 "%s at 0x%lx irq %i",
2006 		 card->shortname, bus->addr, bus->irq);
2007 
2008 	return 0;
2009 }
2010 
2011 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2012 /* callback from request_firmware_nowait() */
2013 static void azx_firmware_cb(const struct firmware *fw, void *context)
2014 {
2015 	struct snd_card *card = context;
2016 	struct azx *chip = card->private_data;
2017 	struct pci_dev *pci = chip->pci;
2018 
2019 	if (!fw) {
2020 		dev_err(card->dev, "Cannot load firmware, aborting\n");
2021 		goto error;
2022 	}
2023 
2024 	chip->fw = fw;
2025 	if (!chip->disabled) {
2026 		/* continue probing */
2027 		if (azx_probe_continue(chip))
2028 			goto error;
2029 	}
2030 	return; /* OK */
2031 
2032  error:
2033 	snd_card_free(card);
2034 	pci_set_drvdata(pci, NULL);
2035 }
2036 #endif
2037 
2038 static int disable_msi_reset_irq(struct azx *chip)
2039 {
2040 	struct hdac_bus *bus = azx_bus(chip);
2041 	int err;
2042 
2043 	free_irq(bus->irq, chip);
2044 	bus->irq = -1;
2045 	pci_disable_msi(chip->pci);
2046 	chip->msi = 0;
2047 	err = azx_acquire_irq(chip, 1);
2048 	if (err < 0)
2049 		return err;
2050 
2051 	return 0;
2052 }
2053 
2054 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
2055 			     struct vm_area_struct *area)
2056 {
2057 #ifdef CONFIG_X86
2058 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2059 	struct azx *chip = apcm->chip;
2060 	if (chip->uc_buffer)
2061 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
2062 #endif
2063 }
2064 
2065 static const struct hda_controller_ops pci_hda_ops = {
2066 	.disable_msi_reset_irq = disable_msi_reset_irq,
2067 	.pcm_mmap_prepare = pcm_mmap_prepare,
2068 	.position_check = azx_position_check,
2069 };
2070 
2071 static int azx_probe(struct pci_dev *pci,
2072 		     const struct pci_device_id *pci_id)
2073 {
2074 	static int dev;
2075 	struct snd_card *card;
2076 	struct hda_intel *hda;
2077 	struct azx *chip;
2078 	bool schedule_probe;
2079 	int err;
2080 
2081 	if (dev >= SNDRV_CARDS)
2082 		return -ENODEV;
2083 	if (!enable[dev]) {
2084 		dev++;
2085 		return -ENOENT;
2086 	}
2087 
2088 	/*
2089 	 * stop probe if another Intel's DSP driver should be activated
2090 	 */
2091 	if (dsp_driver) {
2092 		err = snd_intel_dsp_driver_probe(pci);
2093 		if (err != SND_INTEL_DSP_DRIVER_ANY &&
2094 		    err != SND_INTEL_DSP_DRIVER_LEGACY)
2095 			return -ENODEV;
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_work(&hda->probe_work);
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 struct snd_pci_quirk power_save_blacklist[] = {
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=1581607 */
2175 	SND_PCI_QUIRK(0x1558, 0x3501, "Clevo W35xSS_370SS", 0),
2176 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2177 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2178 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2179 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2180 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2181 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2182 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2183 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2184 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2185 	/* https://bugs.launchpad.net/bugs/1821663 */
2186 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2187 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2188 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2189 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2190 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2191 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2192 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2193 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2194 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2195 	/* https://bugs.launchpad.net/bugs/1821663 */
2196 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2197 	{}
2198 };
2199 #endif /* CONFIG_PM */
2200 
2201 static void set_default_power_save(struct azx *chip)
2202 {
2203 	int val = power_save;
2204 
2205 #ifdef CONFIG_PM
2206 	if (pm_blacklist) {
2207 		const struct snd_pci_quirk *q;
2208 
2209 		q = snd_pci_quirk_lookup(chip->pci, power_save_blacklist);
2210 		if (q && val) {
2211 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save blacklist, forcing power_save to 0\n",
2212 				 q->subvendor, q->subdevice);
2213 			val = 0;
2214 		}
2215 	}
2216 #endif /* CONFIG_PM */
2217 	snd_hda_set_power_save(&chip->bus, val * 1000);
2218 }
2219 
2220 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2221 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2222 	[AZX_DRIVER_NVIDIA] = 8,
2223 	[AZX_DRIVER_TERA] = 1,
2224 };
2225 
2226 static int azx_probe_continue(struct azx *chip)
2227 {
2228 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2229 	struct hdac_bus *bus = azx_bus(chip);
2230 	struct pci_dev *pci = chip->pci;
2231 	int dev = chip->dev_index;
2232 	int err;
2233 
2234 	to_hda_bus(bus)->bus_probing = 1;
2235 	hda->probe_continued = 1;
2236 
2237 	/* bind with i915 if needed */
2238 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2239 		err = snd_hdac_i915_init(bus);
2240 		if (err < 0) {
2241 			/* if the controller is bound only with HDMI/DP
2242 			 * (for HSW and BDW), we need to abort the probe;
2243 			 * for other chips, still continue probing as other
2244 			 * codecs can be on the same link.
2245 			 */
2246 			if (CONTROLLER_IN_GPU(pci)) {
2247 				dev_err(chip->card->dev,
2248 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2249 				goto out_free;
2250 			} else {
2251 				/* don't bother any longer */
2252 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2253 			}
2254 		}
2255 
2256 		/* HSW/BDW controllers need this power */
2257 		if (CONTROLLER_IN_GPU(pci))
2258 			hda->need_i915_power = 1;
2259 	}
2260 
2261 	/* Request display power well for the HDA controller or codec. For
2262 	 * Haswell/Broadwell, both the display HDA controller and codec need
2263 	 * this power. For other platforms, like Baytrail/Braswell, only the
2264 	 * display codec needs the power and it can be released after probe.
2265 	 */
2266 	display_power(chip, true);
2267 
2268 	err = azx_first_init(chip);
2269 	if (err < 0)
2270 		goto out_free;
2271 
2272 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2273 	chip->beep_mode = beep_mode[dev];
2274 #endif
2275 
2276 	/* create codec instances */
2277 	err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2278 	if (err < 0)
2279 		goto out_free;
2280 
2281 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2282 	if (chip->fw) {
2283 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2284 					 chip->fw->data);
2285 		if (err < 0)
2286 			goto out_free;
2287 #ifndef CONFIG_PM
2288 		release_firmware(chip->fw); /* no longer needed */
2289 		chip->fw = NULL;
2290 #endif
2291 	}
2292 #endif
2293 	if ((probe_only[dev] & 1) == 0) {
2294 		err = azx_codec_configure(chip);
2295 		if (err < 0)
2296 			goto out_free;
2297 	}
2298 
2299 	err = snd_card_register(chip->card);
2300 	if (err < 0)
2301 		goto out_free;
2302 
2303 	setup_vga_switcheroo_runtime_pm(chip);
2304 
2305 	chip->running = 1;
2306 	azx_add_card_list(chip);
2307 
2308 	set_default_power_save(chip);
2309 
2310 	if (azx_has_pm_runtime(chip))
2311 		pm_runtime_put_autosuspend(&pci->dev);
2312 
2313 out_free:
2314 	if (err < 0 || !hda->need_i915_power)
2315 		display_power(chip, false);
2316 	if (err < 0)
2317 		hda->init_failed = 1;
2318 	complete_all(&hda->probe_wait);
2319 	to_hda_bus(bus)->bus_probing = 0;
2320 	return err;
2321 }
2322 
2323 static void azx_remove(struct pci_dev *pci)
2324 {
2325 	struct snd_card *card = pci_get_drvdata(pci);
2326 	struct azx *chip;
2327 	struct hda_intel *hda;
2328 
2329 	if (card) {
2330 		/* cancel the pending probing work */
2331 		chip = card->private_data;
2332 		hda = container_of(chip, struct hda_intel, chip);
2333 		/* FIXME: below is an ugly workaround.
2334 		 * Both device_release_driver() and driver_probe_device()
2335 		 * take *both* the device's and its parent's lock before
2336 		 * calling the remove() and probe() callbacks.  The codec
2337 		 * probe takes the locks of both the codec itself and its
2338 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2339 		 * the PCI controller is unbound, it takes its lock, too
2340 		 * ==> ouch, a deadlock!
2341 		 * As a workaround, we unlock temporarily here the controller
2342 		 * device during cancel_work_sync() call.
2343 		 */
2344 		device_unlock(&pci->dev);
2345 		cancel_work_sync(&hda->probe_work);
2346 		device_lock(&pci->dev);
2347 
2348 		snd_card_free(card);
2349 	}
2350 }
2351 
2352 static void azx_shutdown(struct pci_dev *pci)
2353 {
2354 	struct snd_card *card = pci_get_drvdata(pci);
2355 	struct azx *chip;
2356 
2357 	if (!card)
2358 		return;
2359 	chip = card->private_data;
2360 	if (chip && chip->running)
2361 		azx_stop_chip(chip);
2362 }
2363 
2364 /* PCI IDs */
2365 static const struct pci_device_id azx_ids[] = {
2366 	/* CPT */
2367 	{ PCI_DEVICE(0x8086, 0x1c20),
2368 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2369 	/* PBG */
2370 	{ PCI_DEVICE(0x8086, 0x1d20),
2371 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2372 	/* Panther Point */
2373 	{ PCI_DEVICE(0x8086, 0x1e20),
2374 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2375 	/* Lynx Point */
2376 	{ PCI_DEVICE(0x8086, 0x8c20),
2377 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2378 	/* 9 Series */
2379 	{ PCI_DEVICE(0x8086, 0x8ca0),
2380 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2381 	/* Wellsburg */
2382 	{ PCI_DEVICE(0x8086, 0x8d20),
2383 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2384 	{ PCI_DEVICE(0x8086, 0x8d21),
2385 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2386 	/* Lewisburg */
2387 	{ PCI_DEVICE(0x8086, 0xa1f0),
2388 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2389 	{ PCI_DEVICE(0x8086, 0xa270),
2390 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2391 	/* Lynx Point-LP */
2392 	{ PCI_DEVICE(0x8086, 0x9c20),
2393 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2394 	/* Lynx Point-LP */
2395 	{ PCI_DEVICE(0x8086, 0x9c21),
2396 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2397 	/* Wildcat Point-LP */
2398 	{ PCI_DEVICE(0x8086, 0x9ca0),
2399 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2400 	/* Sunrise Point */
2401 	{ PCI_DEVICE(0x8086, 0xa170),
2402 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2403 	/* Sunrise Point-LP */
2404 	{ PCI_DEVICE(0x8086, 0x9d70),
2405 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2406 	/* Kabylake */
2407 	{ PCI_DEVICE(0x8086, 0xa171),
2408 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2409 	/* Kabylake-LP */
2410 	{ PCI_DEVICE(0x8086, 0x9d71),
2411 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2412 	/* Kabylake-H */
2413 	{ PCI_DEVICE(0x8086, 0xa2f0),
2414 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2415 	/* Coffelake */
2416 	{ PCI_DEVICE(0x8086, 0xa348),
2417 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2418 	/* Cannonlake */
2419 	{ PCI_DEVICE(0x8086, 0x9dc8),
2420 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2421 	/* CometLake-LP */
2422 	{ PCI_DEVICE(0x8086, 0x02C8),
2423 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2424 	/* CometLake-H */
2425 	{ PCI_DEVICE(0x8086, 0x06C8),
2426 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2427 	/* CometLake-S */
2428 	{ PCI_DEVICE(0x8086, 0xa3f0),
2429 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2430 	/* Icelake */
2431 	{ PCI_DEVICE(0x8086, 0x34c8),
2432 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2433 	/* Jasperlake */
2434 	{ PCI_DEVICE(0x8086, 0x38c8),
2435 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2436 	/* Tigerlake */
2437 	{ PCI_DEVICE(0x8086, 0xa0c8),
2438 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2439 	/* Elkhart Lake */
2440 	{ PCI_DEVICE(0x8086, 0x4b55),
2441 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2442 	/* Broxton-P(Apollolake) */
2443 	{ PCI_DEVICE(0x8086, 0x5a98),
2444 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2445 	/* Broxton-T */
2446 	{ PCI_DEVICE(0x8086, 0x1a98),
2447 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2448 	/* Gemini-Lake */
2449 	{ PCI_DEVICE(0x8086, 0x3198),
2450 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2451 	/* Haswell */
2452 	{ PCI_DEVICE(0x8086, 0x0a0c),
2453 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2454 	{ PCI_DEVICE(0x8086, 0x0c0c),
2455 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2456 	{ PCI_DEVICE(0x8086, 0x0d0c),
2457 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2458 	/* Broadwell */
2459 	{ PCI_DEVICE(0x8086, 0x160c),
2460 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2461 	/* 5 Series/3400 */
2462 	{ PCI_DEVICE(0x8086, 0x3b56),
2463 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2464 	/* Poulsbo */
2465 	{ PCI_DEVICE(0x8086, 0x811b),
2466 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2467 	/* Oaktrail */
2468 	{ PCI_DEVICE(0x8086, 0x080a),
2469 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2470 	/* BayTrail */
2471 	{ PCI_DEVICE(0x8086, 0x0f04),
2472 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2473 	/* Braswell */
2474 	{ PCI_DEVICE(0x8086, 0x2284),
2475 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2476 	/* ICH6 */
2477 	{ PCI_DEVICE(0x8086, 0x2668),
2478 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2479 	/* ICH7 */
2480 	{ PCI_DEVICE(0x8086, 0x27d8),
2481 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2482 	/* ESB2 */
2483 	{ PCI_DEVICE(0x8086, 0x269a),
2484 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2485 	/* ICH8 */
2486 	{ PCI_DEVICE(0x8086, 0x284b),
2487 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2488 	/* ICH9 */
2489 	{ PCI_DEVICE(0x8086, 0x293e),
2490 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2491 	/* ICH9 */
2492 	{ PCI_DEVICE(0x8086, 0x293f),
2493 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2494 	/* ICH10 */
2495 	{ PCI_DEVICE(0x8086, 0x3a3e),
2496 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2497 	/* ICH10 */
2498 	{ PCI_DEVICE(0x8086, 0x3a6e),
2499 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2500 	/* Generic Intel */
2501 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2502 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2503 	  .class_mask = 0xffffff,
2504 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2505 	/* ATI SB 450/600/700/800/900 */
2506 	{ PCI_DEVICE(0x1002, 0x437b),
2507 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2508 	{ PCI_DEVICE(0x1002, 0x4383),
2509 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2510 	/* AMD Hudson */
2511 	{ PCI_DEVICE(0x1022, 0x780d),
2512 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2513 	/* AMD, X370 & co */
2514 	{ PCI_DEVICE(0x1022, 0x1457),
2515 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2516 	/* AMD, X570 & co */
2517 	{ PCI_DEVICE(0x1022, 0x1487),
2518 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2519 	/* AMD Stoney */
2520 	{ PCI_DEVICE(0x1022, 0x157a),
2521 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2522 			 AZX_DCAPS_PM_RUNTIME },
2523 	/* AMD Raven */
2524 	{ PCI_DEVICE(0x1022, 0x15e3),
2525 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2526 	/* ATI HDMI */
2527 	{ PCI_DEVICE(0x1002, 0x0002),
2528 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2529 	{ PCI_DEVICE(0x1002, 0x1308),
2530 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2531 	{ PCI_DEVICE(0x1002, 0x157a),
2532 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2533 	{ PCI_DEVICE(0x1002, 0x15b3),
2534 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2535 	{ PCI_DEVICE(0x1002, 0x793b),
2536 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2537 	{ PCI_DEVICE(0x1002, 0x7919),
2538 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2539 	{ PCI_DEVICE(0x1002, 0x960f),
2540 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2541 	{ PCI_DEVICE(0x1002, 0x970f),
2542 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2543 	{ PCI_DEVICE(0x1002, 0x9840),
2544 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2545 	{ PCI_DEVICE(0x1002, 0xaa00),
2546 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2547 	{ PCI_DEVICE(0x1002, 0xaa08),
2548 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2549 	{ PCI_DEVICE(0x1002, 0xaa10),
2550 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2551 	{ PCI_DEVICE(0x1002, 0xaa18),
2552 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2553 	{ PCI_DEVICE(0x1002, 0xaa20),
2554 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2555 	{ PCI_DEVICE(0x1002, 0xaa28),
2556 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2557 	{ PCI_DEVICE(0x1002, 0xaa30),
2558 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2559 	{ PCI_DEVICE(0x1002, 0xaa38),
2560 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2561 	{ PCI_DEVICE(0x1002, 0xaa40),
2562 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2563 	{ PCI_DEVICE(0x1002, 0xaa48),
2564 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2565 	{ PCI_DEVICE(0x1002, 0xaa50),
2566 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2567 	{ PCI_DEVICE(0x1002, 0xaa58),
2568 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2569 	{ PCI_DEVICE(0x1002, 0xaa60),
2570 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2571 	{ PCI_DEVICE(0x1002, 0xaa68),
2572 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2573 	{ PCI_DEVICE(0x1002, 0xaa80),
2574 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2575 	{ PCI_DEVICE(0x1002, 0xaa88),
2576 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2577 	{ PCI_DEVICE(0x1002, 0xaa90),
2578 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2579 	{ PCI_DEVICE(0x1002, 0xaa98),
2580 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2581 	{ PCI_DEVICE(0x1002, 0x9902),
2582 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2583 	{ PCI_DEVICE(0x1002, 0xaaa0),
2584 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2585 	{ PCI_DEVICE(0x1002, 0xaaa8),
2586 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2587 	{ PCI_DEVICE(0x1002, 0xaab0),
2588 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2589 	{ PCI_DEVICE(0x1002, 0xaac0),
2590 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2591 	{ PCI_DEVICE(0x1002, 0xaac8),
2592 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2593 	{ PCI_DEVICE(0x1002, 0xaad8),
2594 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2595 	  AZX_DCAPS_PM_RUNTIME },
2596 	{ PCI_DEVICE(0x1002, 0xaae0),
2597 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2598 	  AZX_DCAPS_PM_RUNTIME },
2599 	{ PCI_DEVICE(0x1002, 0xaae8),
2600 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2601 	  AZX_DCAPS_PM_RUNTIME },
2602 	{ PCI_DEVICE(0x1002, 0xaaf0),
2603 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2604 	  AZX_DCAPS_PM_RUNTIME },
2605 	{ PCI_DEVICE(0x1002, 0xaaf8),
2606 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2607 	  AZX_DCAPS_PM_RUNTIME },
2608 	{ PCI_DEVICE(0x1002, 0xab00),
2609 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2610 	  AZX_DCAPS_PM_RUNTIME },
2611 	{ PCI_DEVICE(0x1002, 0xab08),
2612 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2613 	  AZX_DCAPS_PM_RUNTIME },
2614 	{ PCI_DEVICE(0x1002, 0xab10),
2615 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2616 	  AZX_DCAPS_PM_RUNTIME },
2617 	{ PCI_DEVICE(0x1002, 0xab18),
2618 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2619 	  AZX_DCAPS_PM_RUNTIME },
2620 	{ PCI_DEVICE(0x1002, 0xab20),
2621 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2622 	  AZX_DCAPS_PM_RUNTIME },
2623 	{ PCI_DEVICE(0x1002, 0xab38),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2625 	  AZX_DCAPS_PM_RUNTIME },
2626 	/* VIA VT8251/VT8237A */
2627 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2628 	/* VIA GFX VT7122/VX900 */
2629 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2630 	/* VIA GFX VT6122/VX11 */
2631 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2632 	/* SIS966 */
2633 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2634 	/* ULI M5461 */
2635 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2636 	/* NVIDIA MCP */
2637 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2638 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2639 	  .class_mask = 0xffffff,
2640 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2641 	/* Teradici */
2642 	{ PCI_DEVICE(0x6549, 0x1200),
2643 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2644 	{ PCI_DEVICE(0x6549, 0x2200),
2645 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2646 	/* Creative X-Fi (CA0110-IBG) */
2647 	/* CTHDA chips */
2648 	{ PCI_DEVICE(0x1102, 0x0010),
2649 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2650 	{ PCI_DEVICE(0x1102, 0x0012),
2651 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2652 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2653 	/* the following entry conflicts with snd-ctxfi driver,
2654 	 * as ctxfi driver mutates from HD-audio to native mode with
2655 	 * a special command sequence.
2656 	 */
2657 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2658 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2659 	  .class_mask = 0xffffff,
2660 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2661 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2662 #else
2663 	/* this entry seems still valid -- i.e. without emu20kx chip */
2664 	{ PCI_DEVICE(0x1102, 0x0009),
2665 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2666 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2667 #endif
2668 	/* CM8888 */
2669 	{ PCI_DEVICE(0x13f6, 0x5011),
2670 	  .driver_data = AZX_DRIVER_CMEDIA |
2671 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2672 	/* Vortex86MX */
2673 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2674 	/* VMware HDAudio */
2675 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2676 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2677 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2678 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2679 	  .class_mask = 0xffffff,
2680 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2681 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2682 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2683 	  .class_mask = 0xffffff,
2684 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2685 	/* Zhaoxin */
2686 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2687 	{ 0, }
2688 };
2689 MODULE_DEVICE_TABLE(pci, azx_ids);
2690 
2691 /* pci_driver definition */
2692 static struct pci_driver azx_driver = {
2693 	.name = KBUILD_MODNAME,
2694 	.id_table = azx_ids,
2695 	.probe = azx_probe,
2696 	.remove = azx_remove,
2697 	.shutdown = azx_shutdown,
2698 	.driver = {
2699 		.pm = AZX_PM_OPS,
2700 	},
2701 };
2702 
2703 module_pci_driver(azx_driver);
2704