xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision b9890054)
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 		pci_dev_put(pdev);
1423 	}
1424 	return false;
1425 }
1426 #else
1427 static bool atpx_present(void)
1428 {
1429 	return false;
1430 }
1431 #endif
1432 
1433 /*
1434  * Check of disabled HDMI controller by vga_switcheroo
1435  */
1436 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1437 {
1438 	struct pci_dev *p;
1439 
1440 	/* check only discrete GPU */
1441 	switch (pci->vendor) {
1442 	case PCI_VENDOR_ID_ATI:
1443 	case PCI_VENDOR_ID_AMD:
1444 		if (pci->devfn == 1) {
1445 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1446 							pci->bus->number, 0);
1447 			if (p) {
1448 				/* ATPX is in the integrated GPU's ACPI namespace
1449 				 * rather than the dGPU's namespace. However,
1450 				 * the dGPU is the one who is involved in
1451 				 * vgaswitcheroo.
1452 				 */
1453 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1454 				    atpx_present())
1455 					return p;
1456 				pci_dev_put(p);
1457 			}
1458 		}
1459 		break;
1460 	case PCI_VENDOR_ID_NVIDIA:
1461 		if (pci->devfn == 1) {
1462 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1463 							pci->bus->number, 0);
1464 			if (p) {
1465 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1466 					return p;
1467 				pci_dev_put(p);
1468 			}
1469 		}
1470 		break;
1471 	}
1472 	return NULL;
1473 }
1474 
1475 static bool check_hdmi_disabled(struct pci_dev *pci)
1476 {
1477 	bool vga_inactive = false;
1478 	struct pci_dev *p = get_bound_vga(pci);
1479 
1480 	if (p) {
1481 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1482 			vga_inactive = true;
1483 		pci_dev_put(p);
1484 	}
1485 	return vga_inactive;
1486 }
1487 #endif /* SUPPORT_VGA_SWITCHEROO */
1488 
1489 /*
1490  * white/black-listing for position_fix
1491  */
1492 static struct snd_pci_quirk position_fix_list[] = {
1493 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1494 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1495 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1496 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1497 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1498 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1499 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1500 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1501 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1502 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1503 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1504 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1505 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1506 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1507 	{}
1508 };
1509 
1510 static int check_position_fix(struct azx *chip, int fix)
1511 {
1512 	const struct snd_pci_quirk *q;
1513 
1514 	switch (fix) {
1515 	case POS_FIX_AUTO:
1516 	case POS_FIX_LPIB:
1517 	case POS_FIX_POSBUF:
1518 	case POS_FIX_VIACOMBO:
1519 	case POS_FIX_COMBO:
1520 	case POS_FIX_SKL:
1521 	case POS_FIX_FIFO:
1522 		return fix;
1523 	}
1524 
1525 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1526 	if (q) {
1527 		dev_info(chip->card->dev,
1528 			 "position_fix set to %d for device %04x:%04x\n",
1529 			 q->value, q->subvendor, q->subdevice);
1530 		return q->value;
1531 	}
1532 
1533 	/* Check VIA/ATI HD Audio Controller exist */
1534 	if (chip->driver_type == AZX_DRIVER_VIA) {
1535 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1536 		return POS_FIX_VIACOMBO;
1537 	}
1538 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1539 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1540 		return POS_FIX_FIFO;
1541 	}
1542 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1543 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1544 		return POS_FIX_LPIB;
1545 	}
1546 	if (chip->driver_type == AZX_DRIVER_SKL) {
1547 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1548 		return POS_FIX_SKL;
1549 	}
1550 	return POS_FIX_AUTO;
1551 }
1552 
1553 static void assign_position_fix(struct azx *chip, int fix)
1554 {
1555 	static azx_get_pos_callback_t callbacks[] = {
1556 		[POS_FIX_AUTO] = NULL,
1557 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1558 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1559 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1560 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1561 		[POS_FIX_SKL] = azx_get_pos_skl,
1562 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1563 	};
1564 
1565 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1566 
1567 	/* combo mode uses LPIB only for playback */
1568 	if (fix == POS_FIX_COMBO)
1569 		chip->get_position[1] = NULL;
1570 
1571 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1572 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1573 		chip->get_delay[0] = chip->get_delay[1] =
1574 			azx_get_delay_from_lpib;
1575 	}
1576 
1577 	if (fix == POS_FIX_FIFO)
1578 		chip->get_delay[0] = chip->get_delay[1] =
1579 			azx_get_delay_from_fifo;
1580 }
1581 
1582 /*
1583  * black-lists for probe_mask
1584  */
1585 static struct snd_pci_quirk probe_mask_list[] = {
1586 	/* Thinkpad often breaks the controller communication when accessing
1587 	 * to the non-working (or non-existing) modem codec slot.
1588 	 */
1589 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1590 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1591 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1592 	/* broken BIOS */
1593 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1594 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1595 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1596 	/* forced codec slots */
1597 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1598 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1599 	/* WinFast VP200 H (Teradici) user reported broken communication */
1600 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1601 	{}
1602 };
1603 
1604 #define AZX_FORCE_CODEC_MASK	0x100
1605 
1606 static void check_probe_mask(struct azx *chip, int dev)
1607 {
1608 	const struct snd_pci_quirk *q;
1609 
1610 	chip->codec_probe_mask = probe_mask[dev];
1611 	if (chip->codec_probe_mask == -1) {
1612 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1613 		if (q) {
1614 			dev_info(chip->card->dev,
1615 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1616 				 q->value, q->subvendor, q->subdevice);
1617 			chip->codec_probe_mask = q->value;
1618 		}
1619 	}
1620 
1621 	/* check forced option */
1622 	if (chip->codec_probe_mask != -1 &&
1623 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1624 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1625 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1626 			 (int)azx_bus(chip)->codec_mask);
1627 	}
1628 }
1629 
1630 /*
1631  * white/black-list for enable_msi
1632  */
1633 static struct snd_pci_quirk msi_black_list[] = {
1634 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1635 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1636 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1637 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1638 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1639 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1640 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1641 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1642 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1643 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1644 	{}
1645 };
1646 
1647 static void check_msi(struct azx *chip)
1648 {
1649 	const struct snd_pci_quirk *q;
1650 
1651 	if (enable_msi >= 0) {
1652 		chip->msi = !!enable_msi;
1653 		return;
1654 	}
1655 	chip->msi = 1;	/* enable MSI as default */
1656 	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1657 	if (q) {
1658 		dev_info(chip->card->dev,
1659 			 "msi for device %04x:%04x set to %d\n",
1660 			 q->subvendor, q->subdevice, q->value);
1661 		chip->msi = q->value;
1662 		return;
1663 	}
1664 
1665 	/* NVidia chipsets seem to cause troubles with MSI */
1666 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1667 		dev_info(chip->card->dev, "Disabling MSI\n");
1668 		chip->msi = 0;
1669 	}
1670 }
1671 
1672 /* check the snoop mode availability */
1673 static void azx_check_snoop_available(struct azx *chip)
1674 {
1675 	int snoop = hda_snoop;
1676 
1677 	if (snoop >= 0) {
1678 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1679 			 snoop ? "snoop" : "non-snoop");
1680 		chip->snoop = snoop;
1681 		chip->uc_buffer = !snoop;
1682 		return;
1683 	}
1684 
1685 	snoop = true;
1686 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1687 	    chip->driver_type == AZX_DRIVER_VIA) {
1688 		/* force to non-snoop mode for a new VIA controller
1689 		 * when BIOS is set
1690 		 */
1691 		u8 val;
1692 		pci_read_config_byte(chip->pci, 0x42, &val);
1693 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1694 				      chip->pci->revision == 0x20))
1695 			snoop = false;
1696 	}
1697 
1698 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1699 		snoop = false;
1700 
1701 	chip->snoop = snoop;
1702 	if (!snoop) {
1703 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1704 		/* C-Media requires non-cached pages only for CORB/RIRB */
1705 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1706 			chip->uc_buffer = true;
1707 	}
1708 }
1709 
1710 static void azx_probe_work(struct work_struct *work)
1711 {
1712 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1713 	azx_probe_continue(&hda->chip);
1714 }
1715 
1716 static int default_bdl_pos_adj(struct azx *chip)
1717 {
1718 	/* some exceptions: Atoms seem problematic with value 1 */
1719 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1720 		switch (chip->pci->device) {
1721 		case 0x0f04: /* Baytrail */
1722 		case 0x2284: /* Braswell */
1723 			return 32;
1724 		}
1725 	}
1726 
1727 	switch (chip->driver_type) {
1728 	case AZX_DRIVER_ICH:
1729 	case AZX_DRIVER_PCH:
1730 		return 1;
1731 	default:
1732 		return 32;
1733 	}
1734 }
1735 
1736 /*
1737  * constructor
1738  */
1739 static const struct hda_controller_ops pci_hda_ops;
1740 
1741 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1742 		      int dev, unsigned int driver_caps,
1743 		      struct azx **rchip)
1744 {
1745 	static struct snd_device_ops ops = {
1746 		.dev_disconnect = azx_dev_disconnect,
1747 		.dev_free = azx_dev_free,
1748 	};
1749 	struct hda_intel *hda;
1750 	struct azx *chip;
1751 	int err;
1752 
1753 	*rchip = NULL;
1754 
1755 	err = pci_enable_device(pci);
1756 	if (err < 0)
1757 		return err;
1758 
1759 	hda = kzalloc(sizeof(*hda), GFP_KERNEL);
1760 	if (!hda) {
1761 		pci_disable_device(pci);
1762 		return -ENOMEM;
1763 	}
1764 
1765 	chip = &hda->chip;
1766 	mutex_init(&chip->open_mutex);
1767 	chip->card = card;
1768 	chip->pci = pci;
1769 	chip->ops = &pci_hda_ops;
1770 	chip->driver_caps = driver_caps;
1771 	chip->driver_type = driver_caps & 0xff;
1772 	check_msi(chip);
1773 	chip->dev_index = dev;
1774 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1775 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1776 	INIT_LIST_HEAD(&chip->pcm_list);
1777 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1778 	INIT_LIST_HEAD(&hda->list);
1779 	init_vga_switcheroo(chip);
1780 	init_completion(&hda->probe_wait);
1781 
1782 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1783 
1784 	check_probe_mask(chip, dev);
1785 
1786 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1787 		chip->fallback_to_single_cmd = 1;
1788 	else /* explicitly set to single_cmd or not */
1789 		chip->single_cmd = single_cmd;
1790 
1791 	azx_check_snoop_available(chip);
1792 
1793 	if (bdl_pos_adj[dev] < 0)
1794 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1795 	else
1796 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1797 
1798 	err = azx_bus_init(chip, model[dev]);
1799 	if (err < 0) {
1800 		kfree(hda);
1801 		pci_disable_device(pci);
1802 		return err;
1803 	}
1804 
1805 	/* use the non-cached pages in non-snoop mode */
1806 	if (!azx_snoop(chip))
1807 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_UC;
1808 
1809 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1810 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1811 		chip->bus.needs_damn_long_delay = 1;
1812 	}
1813 
1814 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1815 	if (err < 0) {
1816 		dev_err(card->dev, "Error creating device [card]!\n");
1817 		azx_free(chip);
1818 		return err;
1819 	}
1820 
1821 	/* continue probing in work context as may trigger request module */
1822 	INIT_WORK(&hda->probe_work, azx_probe_work);
1823 
1824 	*rchip = chip;
1825 
1826 	return 0;
1827 }
1828 
1829 static int azx_first_init(struct azx *chip)
1830 {
1831 	int dev = chip->dev_index;
1832 	struct pci_dev *pci = chip->pci;
1833 	struct snd_card *card = chip->card;
1834 	struct hdac_bus *bus = azx_bus(chip);
1835 	int err;
1836 	unsigned short gcap;
1837 	unsigned int dma_bits = 64;
1838 
1839 #if BITS_PER_LONG != 64
1840 	/* Fix up base address on ULI M5461 */
1841 	if (chip->driver_type == AZX_DRIVER_ULI) {
1842 		u16 tmp3;
1843 		pci_read_config_word(pci, 0x40, &tmp3);
1844 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1845 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1846 	}
1847 #endif
1848 
1849 	err = pci_request_regions(pci, "ICH HD audio");
1850 	if (err < 0)
1851 		return err;
1852 	chip->region_requested = 1;
1853 
1854 	bus->addr = pci_resource_start(pci, 0);
1855 	bus->remap_addr = pci_ioremap_bar(pci, 0);
1856 	if (bus->remap_addr == NULL) {
1857 		dev_err(card->dev, "ioremap error\n");
1858 		return -ENXIO;
1859 	}
1860 
1861 	if (chip->driver_type == AZX_DRIVER_SKL)
1862 		snd_hdac_bus_parse_capabilities(bus);
1863 
1864 	/*
1865 	 * Some Intel CPUs has always running timer (ART) feature and
1866 	 * controller may have Global time sync reporting capability, so
1867 	 * check both of these before declaring synchronized time reporting
1868 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1869 	 */
1870 	chip->gts_present = false;
1871 
1872 #ifdef CONFIG_X86
1873 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1874 		chip->gts_present = true;
1875 #endif
1876 
1877 	if (chip->msi) {
1878 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1879 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1880 			pci->no_64bit_msi = true;
1881 		}
1882 		if (pci_enable_msi(pci) < 0)
1883 			chip->msi = 0;
1884 	}
1885 
1886 	pci_set_master(pci);
1887 	synchronize_irq(bus->irq);
1888 
1889 	gcap = azx_readw(chip, GCAP);
1890 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1891 
1892 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1893 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1894 		dma_bits = 40;
1895 
1896 	/* disable SB600 64bit support for safety */
1897 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1898 		struct pci_dev *p_smbus;
1899 		dma_bits = 40;
1900 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1901 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1902 					 NULL);
1903 		if (p_smbus) {
1904 			if (p_smbus->revision < 0x30)
1905 				gcap &= ~AZX_GCAP_64OK;
1906 			pci_dev_put(p_smbus);
1907 		}
1908 	}
1909 
1910 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1911 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1912 		dma_bits = 40;
1913 
1914 	/* disable 64bit DMA address on some devices */
1915 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1916 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1917 		gcap &= ~AZX_GCAP_64OK;
1918 	}
1919 
1920 	/* disable buffer size rounding to 128-byte multiples if supported */
1921 	if (align_buffer_size >= 0)
1922 		chip->align_buffer_size = !!align_buffer_size;
1923 	else {
1924 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1925 			chip->align_buffer_size = 0;
1926 		else
1927 			chip->align_buffer_size = 1;
1928 	}
1929 
1930 	/* allow 64bit DMA address if supported by H/W */
1931 	if (!(gcap & AZX_GCAP_64OK))
1932 		dma_bits = 32;
1933 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1934 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1935 	} else {
1936 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1937 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1938 	}
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 		return -ENODEV;
1997 	}
1998 
1999 	if (azx_acquire_irq(chip, 0) < 0)
2000 		return -EBUSY;
2001 
2002 	strcpy(card->driver, "HDA-Intel");
2003 	strlcpy(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 	struct pci_dev *pci = chip->pci;
2019 
2020 	if (!fw) {
2021 		dev_err(card->dev, "Cannot load firmware, aborting\n");
2022 		goto error;
2023 	}
2024 
2025 	chip->fw = fw;
2026 	if (!chip->disabled) {
2027 		/* continue probing */
2028 		if (azx_probe_continue(chip))
2029 			goto error;
2030 	}
2031 	return; /* OK */
2032 
2033  error:
2034 	snd_card_free(card);
2035 	pci_set_drvdata(pci, NULL);
2036 }
2037 #endif
2038 
2039 static int disable_msi_reset_irq(struct azx *chip)
2040 {
2041 	struct hdac_bus *bus = azx_bus(chip);
2042 	int err;
2043 
2044 	free_irq(bus->irq, chip);
2045 	bus->irq = -1;
2046 	pci_disable_msi(chip->pci);
2047 	chip->msi = 0;
2048 	err = azx_acquire_irq(chip, 1);
2049 	if (err < 0)
2050 		return err;
2051 
2052 	return 0;
2053 }
2054 
2055 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
2056 			     struct vm_area_struct *area)
2057 {
2058 #ifdef CONFIG_X86
2059 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2060 	struct azx *chip = apcm->chip;
2061 	if (chip->uc_buffer)
2062 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
2063 #endif
2064 }
2065 
2066 static const struct hda_controller_ops pci_hda_ops = {
2067 	.disable_msi_reset_irq = disable_msi_reset_irq,
2068 	.pcm_mmap_prepare = pcm_mmap_prepare,
2069 	.position_check = azx_position_check,
2070 };
2071 
2072 static int azx_probe(struct pci_dev *pci,
2073 		     const struct pci_device_id *pci_id)
2074 {
2075 	static int dev;
2076 	struct snd_card *card;
2077 	struct hda_intel *hda;
2078 	struct azx *chip;
2079 	bool schedule_probe;
2080 	int err;
2081 
2082 	if (dev >= SNDRV_CARDS)
2083 		return -ENODEV;
2084 	if (!enable[dev]) {
2085 		dev++;
2086 		return -ENOENT;
2087 	}
2088 
2089 	/*
2090 	 * stop probe if another Intel's DSP driver should be activated
2091 	 */
2092 	if (dsp_driver) {
2093 		err = snd_intel_dsp_driver_probe(pci);
2094 		if (err != SND_INTEL_DSP_DRIVER_ANY &&
2095 		    err != SND_INTEL_DSP_DRIVER_LEGACY)
2096 			return -ENODEV;
2097 	}
2098 
2099 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2100 			   0, &card);
2101 	if (err < 0) {
2102 		dev_err(&pci->dev, "Error creating card!\n");
2103 		return err;
2104 	}
2105 
2106 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2107 	if (err < 0)
2108 		goto out_free;
2109 	card->private_data = chip;
2110 	hda = container_of(chip, struct hda_intel, chip);
2111 
2112 	pci_set_drvdata(pci, card);
2113 
2114 	err = register_vga_switcheroo(chip);
2115 	if (err < 0) {
2116 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2117 		goto out_free;
2118 	}
2119 
2120 	if (check_hdmi_disabled(pci)) {
2121 		dev_info(card->dev, "VGA controller is disabled\n");
2122 		dev_info(card->dev, "Delaying initialization\n");
2123 		chip->disabled = true;
2124 	}
2125 
2126 	schedule_probe = !chip->disabled;
2127 
2128 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2129 	if (patch[dev] && *patch[dev]) {
2130 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2131 			 patch[dev]);
2132 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2133 					      &pci->dev, GFP_KERNEL, card,
2134 					      azx_firmware_cb);
2135 		if (err < 0)
2136 			goto out_free;
2137 		schedule_probe = false; /* continued in azx_firmware_cb() */
2138 	}
2139 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2140 
2141 #ifndef CONFIG_SND_HDA_I915
2142 	if (CONTROLLER_IN_GPU(pci))
2143 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2144 #endif
2145 
2146 	if (schedule_probe)
2147 		schedule_work(&hda->probe_work);
2148 
2149 	dev++;
2150 	if (chip->disabled)
2151 		complete_all(&hda->probe_wait);
2152 	return 0;
2153 
2154 out_free:
2155 	snd_card_free(card);
2156 	return err;
2157 }
2158 
2159 #ifdef CONFIG_PM
2160 /* On some boards setting power_save to a non 0 value leads to clicking /
2161  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2162  * figure out how to avoid these sounds, but that is not always feasible.
2163  * So we keep a list of devices where we disable powersaving as its known
2164  * to causes problems on these devices.
2165  */
2166 static struct snd_pci_quirk power_save_blacklist[] = {
2167 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2168 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2169 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2170 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2171 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2172 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2173 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2174 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2175 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1581607 */
2176 	SND_PCI_QUIRK(0x1558, 0x3501, "Clevo W35xSS_370SS", 0),
2177 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2178 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2179 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2180 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2181 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2182 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2183 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2184 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2185 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2186 	/* https://bugs.launchpad.net/bugs/1821663 */
2187 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2188 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2189 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2190 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2191 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2192 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2193 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2194 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2195 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2196 	/* https://bugs.launchpad.net/bugs/1821663 */
2197 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2198 	{}
2199 };
2200 #endif /* CONFIG_PM */
2201 
2202 static void set_default_power_save(struct azx *chip)
2203 {
2204 	int val = power_save;
2205 
2206 #ifdef CONFIG_PM
2207 	if (pm_blacklist) {
2208 		const struct snd_pci_quirk *q;
2209 
2210 		q = snd_pci_quirk_lookup(chip->pci, power_save_blacklist);
2211 		if (q && val) {
2212 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save blacklist, forcing power_save to 0\n",
2213 				 q->subvendor, q->subdevice);
2214 			val = 0;
2215 		}
2216 	}
2217 #endif /* CONFIG_PM */
2218 	snd_hda_set_power_save(&chip->bus, val * 1000);
2219 }
2220 
2221 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2222 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2223 	[AZX_DRIVER_NVIDIA] = 8,
2224 	[AZX_DRIVER_TERA] = 1,
2225 };
2226 
2227 static int azx_probe_continue(struct azx *chip)
2228 {
2229 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2230 	struct hdac_bus *bus = azx_bus(chip);
2231 	struct pci_dev *pci = chip->pci;
2232 	int dev = chip->dev_index;
2233 	int err;
2234 
2235 	to_hda_bus(bus)->bus_probing = 1;
2236 	hda->probe_continued = 1;
2237 
2238 	/* bind with i915 if needed */
2239 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2240 		err = snd_hdac_i915_init(bus);
2241 		if (err < 0) {
2242 			/* if the controller is bound only with HDMI/DP
2243 			 * (for HSW and BDW), we need to abort the probe;
2244 			 * for other chips, still continue probing as other
2245 			 * codecs can be on the same link.
2246 			 */
2247 			if (CONTROLLER_IN_GPU(pci)) {
2248 				dev_err(chip->card->dev,
2249 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2250 				goto out_free;
2251 			} else {
2252 				/* don't bother any longer */
2253 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2254 			}
2255 		}
2256 
2257 		/* HSW/BDW controllers need this power */
2258 		if (CONTROLLER_IN_GPU(pci))
2259 			hda->need_i915_power = 1;
2260 	}
2261 
2262 	/* Request display power well for the HDA controller or codec. For
2263 	 * Haswell/Broadwell, both the display HDA controller and codec need
2264 	 * this power. For other platforms, like Baytrail/Braswell, only the
2265 	 * display codec needs the power and it can be released after probe.
2266 	 */
2267 	display_power(chip, true);
2268 
2269 	err = azx_first_init(chip);
2270 	if (err < 0)
2271 		goto out_free;
2272 
2273 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2274 	chip->beep_mode = beep_mode[dev];
2275 #endif
2276 
2277 	/* create codec instances */
2278 	err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2279 	if (err < 0)
2280 		goto out_free;
2281 
2282 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2283 	if (chip->fw) {
2284 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2285 					 chip->fw->data);
2286 		if (err < 0)
2287 			goto out_free;
2288 #ifndef CONFIG_PM
2289 		release_firmware(chip->fw); /* no longer needed */
2290 		chip->fw = NULL;
2291 #endif
2292 	}
2293 #endif
2294 	if ((probe_only[dev] & 1) == 0) {
2295 		err = azx_codec_configure(chip);
2296 		if (err < 0)
2297 			goto out_free;
2298 	}
2299 
2300 	err = snd_card_register(chip->card);
2301 	if (err < 0)
2302 		goto out_free;
2303 
2304 	setup_vga_switcheroo_runtime_pm(chip);
2305 
2306 	chip->running = 1;
2307 	azx_add_card_list(chip);
2308 
2309 	set_default_power_save(chip);
2310 
2311 	if (azx_has_pm_runtime(chip))
2312 		pm_runtime_put_autosuspend(&pci->dev);
2313 
2314 out_free:
2315 	if (err < 0 || !hda->need_i915_power)
2316 		display_power(chip, false);
2317 	if (err < 0)
2318 		hda->init_failed = 1;
2319 	complete_all(&hda->probe_wait);
2320 	to_hda_bus(bus)->bus_probing = 0;
2321 	return err;
2322 }
2323 
2324 static void azx_remove(struct pci_dev *pci)
2325 {
2326 	struct snd_card *card = pci_get_drvdata(pci);
2327 	struct azx *chip;
2328 	struct hda_intel *hda;
2329 
2330 	if (card) {
2331 		/* cancel the pending probing work */
2332 		chip = card->private_data;
2333 		hda = container_of(chip, struct hda_intel, chip);
2334 		/* FIXME: below is an ugly workaround.
2335 		 * Both device_release_driver() and driver_probe_device()
2336 		 * take *both* the device's and its parent's lock before
2337 		 * calling the remove() and probe() callbacks.  The codec
2338 		 * probe takes the locks of both the codec itself and its
2339 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2340 		 * the PCI controller is unbound, it takes its lock, too
2341 		 * ==> ouch, a deadlock!
2342 		 * As a workaround, we unlock temporarily here the controller
2343 		 * device during cancel_work_sync() call.
2344 		 */
2345 		device_unlock(&pci->dev);
2346 		cancel_work_sync(&hda->probe_work);
2347 		device_lock(&pci->dev);
2348 
2349 		snd_card_free(card);
2350 	}
2351 }
2352 
2353 static void azx_shutdown(struct pci_dev *pci)
2354 {
2355 	struct snd_card *card = pci_get_drvdata(pci);
2356 	struct azx *chip;
2357 
2358 	if (!card)
2359 		return;
2360 	chip = card->private_data;
2361 	if (chip && chip->running)
2362 		azx_stop_chip(chip);
2363 }
2364 
2365 /* PCI IDs */
2366 static const struct pci_device_id azx_ids[] = {
2367 	/* CPT */
2368 	{ PCI_DEVICE(0x8086, 0x1c20),
2369 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2370 	/* PBG */
2371 	{ PCI_DEVICE(0x8086, 0x1d20),
2372 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2373 	/* Panther Point */
2374 	{ PCI_DEVICE(0x8086, 0x1e20),
2375 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2376 	/* Lynx Point */
2377 	{ PCI_DEVICE(0x8086, 0x8c20),
2378 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2379 	/* 9 Series */
2380 	{ PCI_DEVICE(0x8086, 0x8ca0),
2381 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2382 	/* Wellsburg */
2383 	{ PCI_DEVICE(0x8086, 0x8d20),
2384 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2385 	{ PCI_DEVICE(0x8086, 0x8d21),
2386 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2387 	/* Lewisburg */
2388 	{ PCI_DEVICE(0x8086, 0xa1f0),
2389 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2390 	{ PCI_DEVICE(0x8086, 0xa270),
2391 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2392 	/* Lynx Point-LP */
2393 	{ PCI_DEVICE(0x8086, 0x9c20),
2394 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2395 	/* Lynx Point-LP */
2396 	{ PCI_DEVICE(0x8086, 0x9c21),
2397 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2398 	/* Wildcat Point-LP */
2399 	{ PCI_DEVICE(0x8086, 0x9ca0),
2400 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2401 	/* Sunrise Point */
2402 	{ PCI_DEVICE(0x8086, 0xa170),
2403 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2404 	/* Sunrise Point-LP */
2405 	{ PCI_DEVICE(0x8086, 0x9d70),
2406 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2407 	/* Kabylake */
2408 	{ PCI_DEVICE(0x8086, 0xa171),
2409 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2410 	/* Kabylake-LP */
2411 	{ PCI_DEVICE(0x8086, 0x9d71),
2412 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2413 	/* Kabylake-H */
2414 	{ PCI_DEVICE(0x8086, 0xa2f0),
2415 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2416 	/* Coffelake */
2417 	{ PCI_DEVICE(0x8086, 0xa348),
2418 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2419 	/* Cannonlake */
2420 	{ PCI_DEVICE(0x8086, 0x9dc8),
2421 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2422 	/* CometLake-LP */
2423 	{ PCI_DEVICE(0x8086, 0x02C8),
2424 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2425 	/* CometLake-H */
2426 	{ PCI_DEVICE(0x8086, 0x06C8),
2427 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2428 	/* CometLake-S */
2429 	{ PCI_DEVICE(0x8086, 0xa3f0),
2430 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2431 	/* Icelake */
2432 	{ PCI_DEVICE(0x8086, 0x34c8),
2433 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2434 	/* Jasperlake */
2435 	{ PCI_DEVICE(0x8086, 0x38c8),
2436 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2437 	/* Tigerlake */
2438 	{ PCI_DEVICE(0x8086, 0xa0c8),
2439 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2440 	/* Elkhart Lake */
2441 	{ PCI_DEVICE(0x8086, 0x4b55),
2442 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2443 	/* Broxton-P(Apollolake) */
2444 	{ PCI_DEVICE(0x8086, 0x5a98),
2445 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2446 	/* Broxton-T */
2447 	{ PCI_DEVICE(0x8086, 0x1a98),
2448 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2449 	/* Gemini-Lake */
2450 	{ PCI_DEVICE(0x8086, 0x3198),
2451 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2452 	/* Haswell */
2453 	{ PCI_DEVICE(0x8086, 0x0a0c),
2454 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2455 	{ PCI_DEVICE(0x8086, 0x0c0c),
2456 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2457 	{ PCI_DEVICE(0x8086, 0x0d0c),
2458 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2459 	/* Broadwell */
2460 	{ PCI_DEVICE(0x8086, 0x160c),
2461 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2462 	/* 5 Series/3400 */
2463 	{ PCI_DEVICE(0x8086, 0x3b56),
2464 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2465 	/* Poulsbo */
2466 	{ PCI_DEVICE(0x8086, 0x811b),
2467 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2468 	/* Oaktrail */
2469 	{ PCI_DEVICE(0x8086, 0x080a),
2470 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2471 	/* BayTrail */
2472 	{ PCI_DEVICE(0x8086, 0x0f04),
2473 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2474 	/* Braswell */
2475 	{ PCI_DEVICE(0x8086, 0x2284),
2476 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2477 	/* ICH6 */
2478 	{ PCI_DEVICE(0x8086, 0x2668),
2479 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2480 	/* ICH7 */
2481 	{ PCI_DEVICE(0x8086, 0x27d8),
2482 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2483 	/* ESB2 */
2484 	{ PCI_DEVICE(0x8086, 0x269a),
2485 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2486 	/* ICH8 */
2487 	{ PCI_DEVICE(0x8086, 0x284b),
2488 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2489 	/* ICH9 */
2490 	{ PCI_DEVICE(0x8086, 0x293e),
2491 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2492 	/* ICH9 */
2493 	{ PCI_DEVICE(0x8086, 0x293f),
2494 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2495 	/* ICH10 */
2496 	{ PCI_DEVICE(0x8086, 0x3a3e),
2497 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2498 	/* ICH10 */
2499 	{ PCI_DEVICE(0x8086, 0x3a6e),
2500 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2501 	/* Generic Intel */
2502 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2503 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2504 	  .class_mask = 0xffffff,
2505 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2506 	/* ATI SB 450/600/700/800/900 */
2507 	{ PCI_DEVICE(0x1002, 0x437b),
2508 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2509 	{ PCI_DEVICE(0x1002, 0x4383),
2510 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2511 	/* AMD Hudson */
2512 	{ PCI_DEVICE(0x1022, 0x780d),
2513 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2514 	/* AMD, X370 & co */
2515 	{ PCI_DEVICE(0x1022, 0x1457),
2516 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2517 	/* AMD, X570 & co */
2518 	{ PCI_DEVICE(0x1022, 0x1487),
2519 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2520 	/* AMD Stoney */
2521 	{ PCI_DEVICE(0x1022, 0x157a),
2522 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2523 			 AZX_DCAPS_PM_RUNTIME },
2524 	/* AMD Raven */
2525 	{ PCI_DEVICE(0x1022, 0x15e3),
2526 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2527 	/* ATI HDMI */
2528 	{ PCI_DEVICE(0x1002, 0x0002),
2529 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2530 	{ PCI_DEVICE(0x1002, 0x1308),
2531 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2532 	{ PCI_DEVICE(0x1002, 0x157a),
2533 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2534 	{ PCI_DEVICE(0x1002, 0x15b3),
2535 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2536 	{ PCI_DEVICE(0x1002, 0x793b),
2537 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2538 	{ PCI_DEVICE(0x1002, 0x7919),
2539 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2540 	{ PCI_DEVICE(0x1002, 0x960f),
2541 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2542 	{ PCI_DEVICE(0x1002, 0x970f),
2543 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2544 	{ PCI_DEVICE(0x1002, 0x9840),
2545 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2546 	{ PCI_DEVICE(0x1002, 0xaa00),
2547 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2548 	{ PCI_DEVICE(0x1002, 0xaa08),
2549 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2550 	{ PCI_DEVICE(0x1002, 0xaa10),
2551 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2552 	{ PCI_DEVICE(0x1002, 0xaa18),
2553 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2554 	{ PCI_DEVICE(0x1002, 0xaa20),
2555 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2556 	{ PCI_DEVICE(0x1002, 0xaa28),
2557 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2558 	{ PCI_DEVICE(0x1002, 0xaa30),
2559 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2560 	{ PCI_DEVICE(0x1002, 0xaa38),
2561 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2562 	{ PCI_DEVICE(0x1002, 0xaa40),
2563 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2564 	{ PCI_DEVICE(0x1002, 0xaa48),
2565 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2566 	{ PCI_DEVICE(0x1002, 0xaa50),
2567 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2568 	{ PCI_DEVICE(0x1002, 0xaa58),
2569 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2570 	{ PCI_DEVICE(0x1002, 0xaa60),
2571 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2572 	{ PCI_DEVICE(0x1002, 0xaa68),
2573 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2574 	{ PCI_DEVICE(0x1002, 0xaa80),
2575 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2576 	{ PCI_DEVICE(0x1002, 0xaa88),
2577 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2578 	{ PCI_DEVICE(0x1002, 0xaa90),
2579 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2580 	{ PCI_DEVICE(0x1002, 0xaa98),
2581 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2582 	{ PCI_DEVICE(0x1002, 0x9902),
2583 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2584 	{ PCI_DEVICE(0x1002, 0xaaa0),
2585 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2586 	{ PCI_DEVICE(0x1002, 0xaaa8),
2587 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2588 	{ PCI_DEVICE(0x1002, 0xaab0),
2589 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2590 	{ PCI_DEVICE(0x1002, 0xaac0),
2591 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2592 	{ PCI_DEVICE(0x1002, 0xaac8),
2593 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2594 	{ PCI_DEVICE(0x1002, 0xaad8),
2595 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2596 	  AZX_DCAPS_PM_RUNTIME },
2597 	{ PCI_DEVICE(0x1002, 0xaae0),
2598 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2599 	  AZX_DCAPS_PM_RUNTIME },
2600 	{ PCI_DEVICE(0x1002, 0xaae8),
2601 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2602 	  AZX_DCAPS_PM_RUNTIME },
2603 	{ PCI_DEVICE(0x1002, 0xaaf0),
2604 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2605 	  AZX_DCAPS_PM_RUNTIME },
2606 	{ PCI_DEVICE(0x1002, 0xaaf8),
2607 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2608 	  AZX_DCAPS_PM_RUNTIME },
2609 	{ PCI_DEVICE(0x1002, 0xab00),
2610 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2611 	  AZX_DCAPS_PM_RUNTIME },
2612 	{ PCI_DEVICE(0x1002, 0xab08),
2613 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2614 	  AZX_DCAPS_PM_RUNTIME },
2615 	{ PCI_DEVICE(0x1002, 0xab10),
2616 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2617 	  AZX_DCAPS_PM_RUNTIME },
2618 	{ PCI_DEVICE(0x1002, 0xab18),
2619 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2620 	  AZX_DCAPS_PM_RUNTIME },
2621 	{ PCI_DEVICE(0x1002, 0xab20),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2623 	  AZX_DCAPS_PM_RUNTIME },
2624 	{ PCI_DEVICE(0x1002, 0xab38),
2625 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2626 	  AZX_DCAPS_PM_RUNTIME },
2627 	/* VIA VT8251/VT8237A */
2628 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2629 	/* VIA GFX VT7122/VX900 */
2630 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2631 	/* VIA GFX VT6122/VX11 */
2632 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2633 	/* SIS966 */
2634 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2635 	/* ULI M5461 */
2636 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2637 	/* NVIDIA MCP */
2638 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2639 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2640 	  .class_mask = 0xffffff,
2641 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2642 	/* Teradici */
2643 	{ PCI_DEVICE(0x6549, 0x1200),
2644 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2645 	{ PCI_DEVICE(0x6549, 0x2200),
2646 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2647 	/* Creative X-Fi (CA0110-IBG) */
2648 	/* CTHDA chips */
2649 	{ PCI_DEVICE(0x1102, 0x0010),
2650 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2651 	{ PCI_DEVICE(0x1102, 0x0012),
2652 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2653 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2654 	/* the following entry conflicts with snd-ctxfi driver,
2655 	 * as ctxfi driver mutates from HD-audio to native mode with
2656 	 * a special command sequence.
2657 	 */
2658 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2659 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2660 	  .class_mask = 0xffffff,
2661 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2662 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2663 #else
2664 	/* this entry seems still valid -- i.e. without emu20kx chip */
2665 	{ PCI_DEVICE(0x1102, 0x0009),
2666 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2667 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2668 #endif
2669 	/* CM8888 */
2670 	{ PCI_DEVICE(0x13f6, 0x5011),
2671 	  .driver_data = AZX_DRIVER_CMEDIA |
2672 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2673 	/* Vortex86MX */
2674 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2675 	/* VMware HDAudio */
2676 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2677 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2678 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2679 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2680 	  .class_mask = 0xffffff,
2681 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2682 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2683 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2684 	  .class_mask = 0xffffff,
2685 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2686 	/* Zhaoxin */
2687 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2688 	{ 0, }
2689 };
2690 MODULE_DEVICE_TABLE(pci, azx_ids);
2691 
2692 /* pci_driver definition */
2693 static struct pci_driver azx_driver = {
2694 	.name = KBUILD_MODNAME,
2695 	.id_table = azx_ids,
2696 	.probe = azx_probe,
2697 	.remove = azx_remove,
2698 	.shutdown = azx_shutdown,
2699 	.driver = {
2700 		.pm = AZX_PM_OPS,
2701 	},
2702 };
2703 
2704 module_pci_driver(azx_driver);
2705