xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision 50371be6)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *
4  *  hda_intel.c - Implementation of primary alsa driver code base
5  *                for Intel HD Audio.
6  *
7  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
8  *
9  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
10  *                     PeiSen Hou <pshou@realtek.com.tw>
11  *
12  *  CONTACTS:
13  *
14  *  Matt Jared		matt.jared@intel.com
15  *  Andy Kopp		andy.kopp@intel.com
16  *  Dan Kogan		dan.d.kogan@intel.com
17  *
18  *  CHANGES:
19  *
20  *  2004.12.01	Major rewrite by tiwai, merged the work of pshou
21  */
22 
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/moduleparam.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/pci.h>
32 #include <linux/mutex.h>
33 #include <linux/io.h>
34 #include <linux/pm_runtime.h>
35 #include <linux/clocksource.h>
36 #include <linux/time.h>
37 #include <linux/completion.h>
38 #include <linux/acpi.h>
39 #include <linux/pgtable.h>
40 
41 #ifdef CONFIG_X86
42 /* for snoop control */
43 #include <asm/set_memory.h>
44 #include <asm/cpufeature.h>
45 #endif
46 #include <sound/core.h>
47 #include <sound/initval.h>
48 #include <sound/hdaudio.h>
49 #include <sound/hda_i915.h>
50 #include <sound/intel-dsp-config.h>
51 #include <linux/vgaarb.h>
52 #include <linux/vga_switcheroo.h>
53 #include <linux/firmware.h>
54 #include <sound/hda_codec.h>
55 #include "hda_controller.h"
56 #include "hda_intel.h"
57 
58 #define CREATE_TRACE_POINTS
59 #include "hda_intel_trace.h"
60 
61 /* position fix mode */
62 enum {
63 	POS_FIX_AUTO,
64 	POS_FIX_LPIB,
65 	POS_FIX_POSBUF,
66 	POS_FIX_VIACOMBO,
67 	POS_FIX_COMBO,
68 	POS_FIX_SKL,
69 	POS_FIX_FIFO,
70 };
71 
72 /* Defines for ATI HD Audio support in SB450 south bridge */
73 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
74 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
75 
76 /* Defines for Nvidia HDA support */
77 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
78 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
79 #define NVIDIA_HDA_ISTRM_COH          0x4d
80 #define NVIDIA_HDA_OSTRM_COH          0x4c
81 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
82 
83 /* Defines for Intel SCH HDA snoop control */
84 #define INTEL_HDA_CGCTL	 0x48
85 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
86 #define INTEL_SCH_HDA_DEVC      0x78
87 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
88 
89 /* max number of SDs */
90 /* ICH, ATI and VIA have 4 playback and 4 capture */
91 #define ICH6_NUM_CAPTURE	4
92 #define ICH6_NUM_PLAYBACK	4
93 
94 /* ULI has 6 playback and 5 capture */
95 #define ULI_NUM_CAPTURE		5
96 #define ULI_NUM_PLAYBACK	6
97 
98 /* ATI HDMI may have up to 8 playbacks and 0 capture */
99 #define ATIHDMI_NUM_CAPTURE	0
100 #define ATIHDMI_NUM_PLAYBACK	8
101 
102 
103 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
104 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
105 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
106 static char *model[SNDRV_CARDS];
107 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
108 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
109 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
110 static int probe_only[SNDRV_CARDS];
111 static int jackpoll_ms[SNDRV_CARDS];
112 static int single_cmd = -1;
113 static int enable_msi = -1;
114 #ifdef CONFIG_SND_HDA_PATCH_LOADER
115 static char *patch[SNDRV_CARDS];
116 #endif
117 #ifdef CONFIG_SND_HDA_INPUT_BEEP
118 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
119 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
120 #endif
121 static bool dmic_detect = 1;
122 
123 module_param_array(index, int, NULL, 0444);
124 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
125 module_param_array(id, charp, NULL, 0444);
126 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
127 module_param_array(enable, bool, NULL, 0444);
128 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
129 module_param_array(model, charp, NULL, 0444);
130 MODULE_PARM_DESC(model, "Use the given board model.");
131 module_param_array(position_fix, int, NULL, 0444);
132 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
133 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
134 module_param_array(bdl_pos_adj, int, NULL, 0644);
135 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
136 module_param_array(probe_mask, int, NULL, 0444);
137 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
138 module_param_array(probe_only, int, NULL, 0444);
139 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
140 module_param_array(jackpoll_ms, int, NULL, 0444);
141 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
142 module_param(single_cmd, bint, 0444);
143 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
144 		 "(for debugging only).");
145 module_param(enable_msi, bint, 0444);
146 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
147 #ifdef CONFIG_SND_HDA_PATCH_LOADER
148 module_param_array(patch, charp, NULL, 0444);
149 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
150 #endif
151 #ifdef CONFIG_SND_HDA_INPUT_BEEP
152 module_param_array(beep_mode, bool, NULL, 0444);
153 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
154 			    "(0=off, 1=on) (default=1).");
155 #endif
156 module_param(dmic_detect, bool, 0444);
157 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
158 			     "(0=off, 1=on) (default=1); "
159 		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
160 
161 #ifdef CONFIG_PM
162 static int param_set_xint(const char *val, const struct kernel_param *kp);
163 static const struct kernel_param_ops param_ops_xint = {
164 	.set = param_set_xint,
165 	.get = param_get_int,
166 };
167 #define param_check_xint param_check_int
168 
169 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
170 module_param(power_save, xint, 0644);
171 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
172 		 "(in second, 0 = disable).");
173 
174 static bool pm_blacklist = true;
175 module_param(pm_blacklist, bool, 0644);
176 MODULE_PARM_DESC(pm_blacklist, "Enable power-management denylist");
177 
178 /* reset the HD-audio controller in power save mode.
179  * this may give more power-saving, but will take longer time to
180  * wake up.
181  */
182 static bool power_save_controller = 1;
183 module_param(power_save_controller, bool, 0644);
184 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
185 #else
186 #define power_save	0
187 #endif /* CONFIG_PM */
188 
189 static int align_buffer_size = -1;
190 module_param(align_buffer_size, bint, 0644);
191 MODULE_PARM_DESC(align_buffer_size,
192 		"Force buffer and period sizes to be multiple of 128 bytes.");
193 
194 #ifdef CONFIG_X86
195 static int hda_snoop = -1;
196 module_param_named(snoop, hda_snoop, bint, 0444);
197 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
198 #else
199 #define hda_snoop		true
200 #endif
201 
202 
203 MODULE_LICENSE("GPL");
204 MODULE_DESCRIPTION("Intel HDA driver");
205 
206 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
207 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
208 #define SUPPORT_VGA_SWITCHEROO
209 #endif
210 #endif
211 
212 
213 /*
214  */
215 
216 /* driver types */
217 enum {
218 	AZX_DRIVER_ICH,
219 	AZX_DRIVER_PCH,
220 	AZX_DRIVER_SCH,
221 	AZX_DRIVER_SKL,
222 	AZX_DRIVER_HDMI,
223 	AZX_DRIVER_ATI,
224 	AZX_DRIVER_ATIHDMI,
225 	AZX_DRIVER_ATIHDMI_NS,
226 	AZX_DRIVER_VIA,
227 	AZX_DRIVER_SIS,
228 	AZX_DRIVER_ULI,
229 	AZX_DRIVER_NVIDIA,
230 	AZX_DRIVER_TERA,
231 	AZX_DRIVER_CTX,
232 	AZX_DRIVER_CTHDA,
233 	AZX_DRIVER_CMEDIA,
234 	AZX_DRIVER_ZHAOXIN,
235 	AZX_DRIVER_GENERIC,
236 	AZX_NUM_DRIVERS, /* keep this as last entry */
237 };
238 
239 #define azx_get_snoop_type(chip) \
240 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
241 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
242 
243 /* quirks for old Intel chipsets */
244 #define AZX_DCAPS_INTEL_ICH \
245 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
246 
247 /* quirks for Intel PCH */
248 #define AZX_DCAPS_INTEL_PCH_BASE \
249 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
250 	 AZX_DCAPS_SNOOP_TYPE(SCH))
251 
252 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
253 #define AZX_DCAPS_INTEL_PCH_NOPM \
254 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
255 
256 /* PCH for HSW/BDW; with runtime PM */
257 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
258 #define AZX_DCAPS_INTEL_PCH \
259 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
260 
261 /* HSW HDMI */
262 #define AZX_DCAPS_INTEL_HASWELL \
263 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
264 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
265 	 AZX_DCAPS_SNOOP_TYPE(SCH))
266 
267 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
268 #define AZX_DCAPS_INTEL_BROADWELL \
269 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
270 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
271 	 AZX_DCAPS_SNOOP_TYPE(SCH))
272 
273 #define AZX_DCAPS_INTEL_BAYTRAIL \
274 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
275 
276 #define AZX_DCAPS_INTEL_BRASWELL \
277 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
278 	 AZX_DCAPS_I915_COMPONENT)
279 
280 #define AZX_DCAPS_INTEL_SKYLAKE \
281 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
282 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
283 
284 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
285 
286 /* quirks for ATI SB / AMD Hudson */
287 #define AZX_DCAPS_PRESET_ATI_SB \
288 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
289 	 AZX_DCAPS_SNOOP_TYPE(ATI))
290 
291 /* quirks for ATI/AMD HDMI */
292 #define AZX_DCAPS_PRESET_ATI_HDMI \
293 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
294 	 AZX_DCAPS_NO_MSI64)
295 
296 /* quirks for ATI HDMI with snoop off */
297 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
298 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
299 
300 /* quirks for AMD SB */
301 #define AZX_DCAPS_PRESET_AMD_SB \
302 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
303 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
304 	 AZX_DCAPS_RETRY_PROBE)
305 
306 /* quirks for Nvidia */
307 #define AZX_DCAPS_PRESET_NVIDIA \
308 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
309 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
310 
311 #define AZX_DCAPS_PRESET_CTHDA \
312 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
313 	 AZX_DCAPS_NO_64BIT |\
314 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
315 
316 /*
317  * vga_switcheroo support
318  */
319 #ifdef SUPPORT_VGA_SWITCHEROO
320 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
321 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
322 #else
323 #define use_vga_switcheroo(chip)	0
324 #define needs_eld_notify_link(chip)	false
325 #endif
326 
327 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
328 					((pci)->device == 0x0c0c) || \
329 					((pci)->device == 0x0d0c) || \
330 					((pci)->device == 0x160c) || \
331 					((pci)->device == 0x490d) || \
332 					((pci)->device == 0x4f90) || \
333 					((pci)->device == 0x4f91) || \
334 					((pci)->device == 0x4f92))
335 
336 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
337 
338 static const char * const driver_short_names[] = {
339 	[AZX_DRIVER_ICH] = "HDA Intel",
340 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
341 	[AZX_DRIVER_SCH] = "HDA Intel MID",
342 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
343 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
344 	[AZX_DRIVER_ATI] = "HDA ATI SB",
345 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
346 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
347 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
348 	[AZX_DRIVER_SIS] = "HDA SIS966",
349 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
350 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
351 	[AZX_DRIVER_TERA] = "HDA Teradici",
352 	[AZX_DRIVER_CTX] = "HDA Creative",
353 	[AZX_DRIVER_CTHDA] = "HDA Creative",
354 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
355 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
356 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
357 };
358 
359 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
360 static void set_default_power_save(struct azx *chip);
361 
362 /*
363  * initialize the PCI registers
364  */
365 /* update bits in a PCI register byte */
366 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
367 			    unsigned char mask, unsigned char val)
368 {
369 	unsigned char data;
370 
371 	pci_read_config_byte(pci, reg, &data);
372 	data &= ~mask;
373 	data |= (val & mask);
374 	pci_write_config_byte(pci, reg, data);
375 }
376 
377 static void azx_init_pci(struct azx *chip)
378 {
379 	int snoop_type = azx_get_snoop_type(chip);
380 
381 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
382 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
383 	 * Ensuring these bits are 0 clears playback static on some HD Audio
384 	 * codecs.
385 	 * The PCI register TCSEL is defined in the Intel manuals.
386 	 */
387 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
388 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
389 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
390 	}
391 
392 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
393 	 * we need to enable snoop.
394 	 */
395 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
396 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
397 			azx_snoop(chip));
398 		update_pci_byte(chip->pci,
399 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
400 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
401 	}
402 
403 	/* For NVIDIA HDA, enable snoop */
404 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
405 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
406 			azx_snoop(chip));
407 		update_pci_byte(chip->pci,
408 				NVIDIA_HDA_TRANSREG_ADDR,
409 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
410 		update_pci_byte(chip->pci,
411 				NVIDIA_HDA_ISTRM_COH,
412 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
413 		update_pci_byte(chip->pci,
414 				NVIDIA_HDA_OSTRM_COH,
415 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
416 	}
417 
418 	/* Enable SCH/PCH snoop if needed */
419 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
420 		unsigned short snoop;
421 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
422 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
423 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
424 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
425 			if (!azx_snoop(chip))
426 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
427 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
428 			pci_read_config_word(chip->pci,
429 				INTEL_SCH_HDA_DEVC, &snoop);
430 		}
431 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
432 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
433 			"Disabled" : "Enabled");
434         }
435 }
436 
437 /*
438  * In BXT-P A0, HD-Audio DMA requests is later than expected,
439  * and makes an audio stream sensitive to system latencies when
440  * 24/32 bits are playing.
441  * Adjusting threshold of DMA fifo to force the DMA request
442  * sooner to improve latency tolerance at the expense of power.
443  */
444 static void bxt_reduce_dma_latency(struct azx *chip)
445 {
446 	u32 val;
447 
448 	val = azx_readl(chip, VS_EM4L);
449 	val &= (0x3 << 20);
450 	azx_writel(chip, VS_EM4L, val);
451 }
452 
453 /*
454  * ML_LCAP bits:
455  *  bit 0: 6 MHz Supported
456  *  bit 1: 12 MHz Supported
457  *  bit 2: 24 MHz Supported
458  *  bit 3: 48 MHz Supported
459  *  bit 4: 96 MHz Supported
460  *  bit 5: 192 MHz Supported
461  */
462 static int intel_get_lctl_scf(struct azx *chip)
463 {
464 	struct hdac_bus *bus = azx_bus(chip);
465 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
466 	u32 val, t;
467 	int i;
468 
469 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
470 
471 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
472 		t = preferred_bits[i];
473 		if (val & (1 << t))
474 			return t;
475 	}
476 
477 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
478 	return 0;
479 }
480 
481 static int intel_ml_lctl_set_power(struct azx *chip, int state)
482 {
483 	struct hdac_bus *bus = azx_bus(chip);
484 	u32 val;
485 	int timeout;
486 
487 	/*
488 	 * Changes to LCTL.SCF are only needed for the first multi-link dealing
489 	 * with external codecs
490 	 */
491 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
492 	val &= ~AZX_ML_LCTL_SPA;
493 	val |= state << AZX_ML_LCTL_SPA_SHIFT;
494 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
495 	/* wait for CPA */
496 	timeout = 50;
497 	while (timeout) {
498 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
499 		    AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
500 			return 0;
501 		timeout--;
502 		udelay(10);
503 	}
504 
505 	return -1;
506 }
507 
508 static void intel_init_lctl(struct azx *chip)
509 {
510 	struct hdac_bus *bus = azx_bus(chip);
511 	u32 val;
512 	int ret;
513 
514 	/* 0. check lctl register value is correct or not */
515 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
516 	/* only perform additional configurations if the SCF is initially based on 6MHz */
517 	if ((val & AZX_ML_LCTL_SCF) != 0)
518 		return;
519 
520 	/*
521 	 * Before operating on SPA, CPA must match SPA.
522 	 * Any deviation may result in undefined behavior.
523 	 */
524 	if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
525 		((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
526 		return;
527 
528 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
529 	ret = intel_ml_lctl_set_power(chip, 0);
530 	udelay(100);
531 	if (ret)
532 		goto set_spa;
533 
534 	/* 2. update SCF to select an audio clock different from 6MHz */
535 	val &= ~AZX_ML_LCTL_SCF;
536 	val |= intel_get_lctl_scf(chip);
537 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
538 
539 set_spa:
540 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
541 	intel_ml_lctl_set_power(chip, 1);
542 	udelay(100);
543 }
544 
545 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
546 {
547 	struct hdac_bus *bus = azx_bus(chip);
548 	struct pci_dev *pci = chip->pci;
549 	u32 val;
550 
551 	snd_hdac_set_codec_wakeup(bus, true);
552 	if (chip->driver_type == AZX_DRIVER_SKL) {
553 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
554 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
555 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
556 	}
557 	azx_init_chip(chip, full_reset);
558 	if (chip->driver_type == AZX_DRIVER_SKL) {
559 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
560 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
561 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
562 	}
563 
564 	snd_hdac_set_codec_wakeup(bus, false);
565 
566 	/* reduce dma latency to avoid noise */
567 	if (IS_BXT(pci))
568 		bxt_reduce_dma_latency(chip);
569 
570 	if (bus->mlcap != NULL)
571 		intel_init_lctl(chip);
572 }
573 
574 /* calculate runtime delay from LPIB */
575 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
576 				   unsigned int pos)
577 {
578 	struct snd_pcm_substream *substream = azx_dev->core.substream;
579 	int stream = substream->stream;
580 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
581 	int delay;
582 
583 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
584 		delay = pos - lpib_pos;
585 	else
586 		delay = lpib_pos - pos;
587 	if (delay < 0) {
588 		if (delay >= azx_dev->core.delay_negative_threshold)
589 			delay = 0;
590 		else
591 			delay += azx_dev->core.bufsize;
592 	}
593 
594 	if (delay >= azx_dev->core.period_bytes) {
595 		dev_info(chip->card->dev,
596 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
597 			 delay, azx_dev->core.period_bytes);
598 		delay = 0;
599 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
600 		chip->get_delay[stream] = NULL;
601 	}
602 
603 	return bytes_to_frames(substream->runtime, delay);
604 }
605 
606 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
607 
608 /* called from IRQ */
609 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
610 {
611 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
612 	int ok;
613 
614 	ok = azx_position_ok(chip, azx_dev);
615 	if (ok == 1) {
616 		azx_dev->irq_pending = 0;
617 		return ok;
618 	} else if (ok == 0) {
619 		/* bogus IRQ, process it later */
620 		azx_dev->irq_pending = 1;
621 		schedule_work(&hda->irq_pending_work);
622 	}
623 	return 0;
624 }
625 
626 #define display_power(chip, enable) \
627 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
628 
629 /*
630  * Check whether the current DMA position is acceptable for updating
631  * periods.  Returns non-zero if it's OK.
632  *
633  * Many HD-audio controllers appear pretty inaccurate about
634  * the update-IRQ timing.  The IRQ is issued before actually the
635  * data is processed.  So, we need to process it afterwords in a
636  * workqueue.
637  *
638  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
639  */
640 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
641 {
642 	struct snd_pcm_substream *substream = azx_dev->core.substream;
643 	struct snd_pcm_runtime *runtime = substream->runtime;
644 	int stream = substream->stream;
645 	u32 wallclk;
646 	unsigned int pos;
647 	snd_pcm_uframes_t hwptr, target;
648 
649 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
650 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
651 		return -1;	/* bogus (too early) interrupt */
652 
653 	if (chip->get_position[stream])
654 		pos = chip->get_position[stream](chip, azx_dev);
655 	else { /* use the position buffer as default */
656 		pos = azx_get_pos_posbuf(chip, azx_dev);
657 		if (!pos || pos == (u32)-1) {
658 			dev_info(chip->card->dev,
659 				 "Invalid position buffer, using LPIB read method instead.\n");
660 			chip->get_position[stream] = azx_get_pos_lpib;
661 			if (chip->get_position[0] == azx_get_pos_lpib &&
662 			    chip->get_position[1] == azx_get_pos_lpib)
663 				azx_bus(chip)->use_posbuf = false;
664 			pos = azx_get_pos_lpib(chip, azx_dev);
665 			chip->get_delay[stream] = NULL;
666 		} else {
667 			chip->get_position[stream] = azx_get_pos_posbuf;
668 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
669 				chip->get_delay[stream] = azx_get_delay_from_lpib;
670 		}
671 	}
672 
673 	if (pos >= azx_dev->core.bufsize)
674 		pos = 0;
675 
676 	if (WARN_ONCE(!azx_dev->core.period_bytes,
677 		      "hda-intel: zero azx_dev->period_bytes"))
678 		return -1; /* this shouldn't happen! */
679 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
680 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
681 		/* NG - it's below the first next period boundary */
682 		return chip->bdl_pos_adj ? 0 : -1;
683 	azx_dev->core.start_wallclk += wallclk;
684 
685 	if (azx_dev->core.no_period_wakeup)
686 		return 1; /* OK, no need to check period boundary */
687 
688 	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
689 		return 1; /* OK, already in hwptr updating process */
690 
691 	/* check whether the period gets really elapsed */
692 	pos = bytes_to_frames(runtime, pos);
693 	hwptr = runtime->hw_ptr_base + pos;
694 	if (hwptr < runtime->status->hw_ptr)
695 		hwptr += runtime->buffer_size;
696 	target = runtime->hw_ptr_interrupt + runtime->period_size;
697 	if (hwptr < target) {
698 		/* too early wakeup, process it later */
699 		return chip->bdl_pos_adj ? 0 : -1;
700 	}
701 
702 	return 1; /* OK, it's fine */
703 }
704 
705 /*
706  * The work for pending PCM period updates.
707  */
708 static void azx_irq_pending_work(struct work_struct *work)
709 {
710 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
711 	struct azx *chip = &hda->chip;
712 	struct hdac_bus *bus = azx_bus(chip);
713 	struct hdac_stream *s;
714 	int pending, ok;
715 
716 	if (!hda->irq_pending_warned) {
717 		dev_info(chip->card->dev,
718 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
719 			 chip->card->number);
720 		hda->irq_pending_warned = 1;
721 	}
722 
723 	for (;;) {
724 		pending = 0;
725 		spin_lock_irq(&bus->reg_lock);
726 		list_for_each_entry(s, &bus->stream_list, list) {
727 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
728 			if (!azx_dev->irq_pending ||
729 			    !s->substream ||
730 			    !s->running)
731 				continue;
732 			ok = azx_position_ok(chip, azx_dev);
733 			if (ok > 0) {
734 				azx_dev->irq_pending = 0;
735 				spin_unlock(&bus->reg_lock);
736 				snd_pcm_period_elapsed(s->substream);
737 				spin_lock(&bus->reg_lock);
738 			} else if (ok < 0) {
739 				pending = 0;	/* too early */
740 			} else
741 				pending++;
742 		}
743 		spin_unlock_irq(&bus->reg_lock);
744 		if (!pending)
745 			return;
746 		msleep(1);
747 	}
748 }
749 
750 /* clear irq_pending flags and assure no on-going workq */
751 static void azx_clear_irq_pending(struct azx *chip)
752 {
753 	struct hdac_bus *bus = azx_bus(chip);
754 	struct hdac_stream *s;
755 
756 	spin_lock_irq(&bus->reg_lock);
757 	list_for_each_entry(s, &bus->stream_list, list) {
758 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
759 		azx_dev->irq_pending = 0;
760 	}
761 	spin_unlock_irq(&bus->reg_lock);
762 }
763 
764 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
765 {
766 	struct hdac_bus *bus = azx_bus(chip);
767 
768 	if (request_irq(chip->pci->irq, azx_interrupt,
769 			chip->msi ? 0 : IRQF_SHARED,
770 			chip->card->irq_descr, chip)) {
771 		dev_err(chip->card->dev,
772 			"unable to grab IRQ %d, disabling device\n",
773 			chip->pci->irq);
774 		if (do_disconnect)
775 			snd_card_disconnect(chip->card);
776 		return -1;
777 	}
778 	bus->irq = chip->pci->irq;
779 	chip->card->sync_irq = bus->irq;
780 	pci_intx(chip->pci, !chip->msi);
781 	return 0;
782 }
783 
784 /* get the current DMA position with correction on VIA chips */
785 static unsigned int azx_via_get_position(struct azx *chip,
786 					 struct azx_dev *azx_dev)
787 {
788 	unsigned int link_pos, mini_pos, bound_pos;
789 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
790 	unsigned int fifo_size;
791 
792 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
793 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
794 		/* Playback, no problem using link position */
795 		return link_pos;
796 	}
797 
798 	/* Capture */
799 	/* For new chipset,
800 	 * use mod to get the DMA position just like old chipset
801 	 */
802 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
803 	mod_dma_pos %= azx_dev->core.period_bytes;
804 
805 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
806 
807 	if (azx_dev->insufficient) {
808 		/* Link position never gather than FIFO size */
809 		if (link_pos <= fifo_size)
810 			return 0;
811 
812 		azx_dev->insufficient = 0;
813 	}
814 
815 	if (link_pos <= fifo_size)
816 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
817 	else
818 		mini_pos = link_pos - fifo_size;
819 
820 	/* Find nearest previous boudary */
821 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
822 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
823 	if (mod_link_pos >= fifo_size)
824 		bound_pos = link_pos - mod_link_pos;
825 	else if (mod_dma_pos >= mod_mini_pos)
826 		bound_pos = mini_pos - mod_mini_pos;
827 	else {
828 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
829 		if (bound_pos >= azx_dev->core.bufsize)
830 			bound_pos = 0;
831 	}
832 
833 	/* Calculate real DMA position we want */
834 	return bound_pos + mod_dma_pos;
835 }
836 
837 #define AMD_FIFO_SIZE	32
838 
839 /* get the current DMA position with FIFO size correction */
840 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
841 {
842 	struct snd_pcm_substream *substream = azx_dev->core.substream;
843 	struct snd_pcm_runtime *runtime = substream->runtime;
844 	unsigned int pos, delay;
845 
846 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
847 	if (!runtime)
848 		return pos;
849 
850 	runtime->delay = AMD_FIFO_SIZE;
851 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
852 	if (azx_dev->insufficient) {
853 		if (pos < delay) {
854 			delay = pos;
855 			runtime->delay = bytes_to_frames(runtime, pos);
856 		} else {
857 			azx_dev->insufficient = 0;
858 		}
859 	}
860 
861 	/* correct the DMA position for capture stream */
862 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
863 		if (pos < delay)
864 			pos += azx_dev->core.bufsize;
865 		pos -= delay;
866 	}
867 
868 	return pos;
869 }
870 
871 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
872 				   unsigned int pos)
873 {
874 	struct snd_pcm_substream *substream = azx_dev->core.substream;
875 
876 	/* just read back the calculated value in the above */
877 	return substream->runtime->delay;
878 }
879 
880 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
881 {
882 	azx_stop_chip(chip);
883 	if (!skip_link_reset)
884 		azx_enter_link_reset(chip);
885 	azx_clear_irq_pending(chip);
886 	display_power(chip, false);
887 }
888 
889 #ifdef CONFIG_PM
890 static DEFINE_MUTEX(card_list_lock);
891 static LIST_HEAD(card_list);
892 
893 static void azx_shutdown_chip(struct azx *chip)
894 {
895 	__azx_shutdown_chip(chip, false);
896 }
897 
898 static void azx_add_card_list(struct azx *chip)
899 {
900 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
901 	mutex_lock(&card_list_lock);
902 	list_add(&hda->list, &card_list);
903 	mutex_unlock(&card_list_lock);
904 }
905 
906 static void azx_del_card_list(struct azx *chip)
907 {
908 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
909 	mutex_lock(&card_list_lock);
910 	list_del_init(&hda->list);
911 	mutex_unlock(&card_list_lock);
912 }
913 
914 /* trigger power-save check at writing parameter */
915 static int param_set_xint(const char *val, const struct kernel_param *kp)
916 {
917 	struct hda_intel *hda;
918 	struct azx *chip;
919 	int prev = power_save;
920 	int ret = param_set_int(val, kp);
921 
922 	if (ret || prev == power_save)
923 		return ret;
924 
925 	mutex_lock(&card_list_lock);
926 	list_for_each_entry(hda, &card_list, list) {
927 		chip = &hda->chip;
928 		if (!hda->probe_continued || chip->disabled)
929 			continue;
930 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
931 	}
932 	mutex_unlock(&card_list_lock);
933 	return 0;
934 }
935 
936 /*
937  * power management
938  */
939 static bool azx_is_pm_ready(struct snd_card *card)
940 {
941 	struct azx *chip;
942 	struct hda_intel *hda;
943 
944 	if (!card)
945 		return false;
946 	chip = card->private_data;
947 	hda = container_of(chip, struct hda_intel, chip);
948 	if (chip->disabled || hda->init_failed || !chip->running)
949 		return false;
950 	return true;
951 }
952 
953 static void __azx_runtime_resume(struct azx *chip)
954 {
955 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
956 	struct hdac_bus *bus = azx_bus(chip);
957 	struct hda_codec *codec;
958 	int status;
959 
960 	display_power(chip, true);
961 	if (hda->need_i915_power)
962 		snd_hdac_i915_set_bclk(bus);
963 
964 	/* Read STATESTS before controller reset */
965 	status = azx_readw(chip, STATESTS);
966 
967 	azx_init_pci(chip);
968 	hda_intel_init_chip(chip, true);
969 
970 	/* Avoid codec resume if runtime resume is for system suspend */
971 	if (!chip->pm_prepared) {
972 		list_for_each_codec(codec, &chip->bus) {
973 			if (codec->relaxed_resume)
974 				continue;
975 
976 			if (codec->forced_resume || (status & (1 << codec->addr)))
977 				pm_request_resume(hda_codec_dev(codec));
978 		}
979 	}
980 
981 	/* power down again for link-controlled chips */
982 	if (!hda->need_i915_power)
983 		display_power(chip, false);
984 }
985 
986 #ifdef CONFIG_PM_SLEEP
987 static int azx_prepare(struct device *dev)
988 {
989 	struct snd_card *card = dev_get_drvdata(dev);
990 	struct azx *chip;
991 
992 	if (!azx_is_pm_ready(card))
993 		return 0;
994 
995 	chip = card->private_data;
996 	chip->pm_prepared = 1;
997 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
998 
999 	flush_work(&azx_bus(chip)->unsol_work);
1000 
1001 	/* HDA controller always requires different WAKEEN for runtime suspend
1002 	 * and system suspend, so don't use direct-complete here.
1003 	 */
1004 	return 0;
1005 }
1006 
1007 static void azx_complete(struct device *dev)
1008 {
1009 	struct snd_card *card = dev_get_drvdata(dev);
1010 	struct azx *chip;
1011 
1012 	if (!azx_is_pm_ready(card))
1013 		return;
1014 
1015 	chip = card->private_data;
1016 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1017 	chip->pm_prepared = 0;
1018 }
1019 
1020 static int azx_suspend(struct device *dev)
1021 {
1022 	struct snd_card *card = dev_get_drvdata(dev);
1023 	struct azx *chip;
1024 	struct hdac_bus *bus;
1025 
1026 	if (!azx_is_pm_ready(card))
1027 		return 0;
1028 
1029 	chip = card->private_data;
1030 	bus = azx_bus(chip);
1031 	azx_shutdown_chip(chip);
1032 	if (bus->irq >= 0) {
1033 		free_irq(bus->irq, chip);
1034 		bus->irq = -1;
1035 		chip->card->sync_irq = -1;
1036 	}
1037 
1038 	if (chip->msi)
1039 		pci_disable_msi(chip->pci);
1040 
1041 	trace_azx_suspend(chip);
1042 	return 0;
1043 }
1044 
1045 static int azx_resume(struct device *dev)
1046 {
1047 	struct snd_card *card = dev_get_drvdata(dev);
1048 	struct azx *chip;
1049 
1050 	if (!azx_is_pm_ready(card))
1051 		return 0;
1052 
1053 	chip = card->private_data;
1054 	if (chip->msi)
1055 		if (pci_enable_msi(chip->pci) < 0)
1056 			chip->msi = 0;
1057 	if (azx_acquire_irq(chip, 1) < 0)
1058 		return -EIO;
1059 
1060 	__azx_runtime_resume(chip);
1061 
1062 	trace_azx_resume(chip);
1063 	return 0;
1064 }
1065 
1066 /* put codec down to D3 at hibernation for Intel SKL+;
1067  * otherwise BIOS may still access the codec and screw up the driver
1068  */
1069 static int azx_freeze_noirq(struct device *dev)
1070 {
1071 	struct snd_card *card = dev_get_drvdata(dev);
1072 	struct azx *chip = card->private_data;
1073 	struct pci_dev *pci = to_pci_dev(dev);
1074 
1075 	if (!azx_is_pm_ready(card))
1076 		return 0;
1077 	if (chip->driver_type == AZX_DRIVER_SKL)
1078 		pci_set_power_state(pci, PCI_D3hot);
1079 
1080 	return 0;
1081 }
1082 
1083 static int azx_thaw_noirq(struct device *dev)
1084 {
1085 	struct snd_card *card = dev_get_drvdata(dev);
1086 	struct azx *chip = card->private_data;
1087 	struct pci_dev *pci = to_pci_dev(dev);
1088 
1089 	if (!azx_is_pm_ready(card))
1090 		return 0;
1091 	if (chip->driver_type == AZX_DRIVER_SKL)
1092 		pci_set_power_state(pci, PCI_D0);
1093 
1094 	return 0;
1095 }
1096 #endif /* CONFIG_PM_SLEEP */
1097 
1098 static int azx_runtime_suspend(struct device *dev)
1099 {
1100 	struct snd_card *card = dev_get_drvdata(dev);
1101 	struct azx *chip;
1102 
1103 	if (!azx_is_pm_ready(card))
1104 		return 0;
1105 	chip = card->private_data;
1106 
1107 	/* enable controller wake up event */
1108 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1109 
1110 	azx_shutdown_chip(chip);
1111 	trace_azx_runtime_suspend(chip);
1112 	return 0;
1113 }
1114 
1115 static int azx_runtime_resume(struct device *dev)
1116 {
1117 	struct snd_card *card = dev_get_drvdata(dev);
1118 	struct azx *chip;
1119 
1120 	if (!azx_is_pm_ready(card))
1121 		return 0;
1122 	chip = card->private_data;
1123 	__azx_runtime_resume(chip);
1124 
1125 	/* disable controller Wake Up event*/
1126 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1127 
1128 	trace_azx_runtime_resume(chip);
1129 	return 0;
1130 }
1131 
1132 static int azx_runtime_idle(struct device *dev)
1133 {
1134 	struct snd_card *card = dev_get_drvdata(dev);
1135 	struct azx *chip;
1136 	struct hda_intel *hda;
1137 
1138 	if (!card)
1139 		return 0;
1140 
1141 	chip = card->private_data;
1142 	hda = container_of(chip, struct hda_intel, chip);
1143 	if (chip->disabled || hda->init_failed)
1144 		return 0;
1145 
1146 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1147 	    azx_bus(chip)->codec_powered || !chip->running)
1148 		return -EBUSY;
1149 
1150 	/* ELD notification gets broken when HD-audio bus is off */
1151 	if (needs_eld_notify_link(chip))
1152 		return -EBUSY;
1153 
1154 	return 0;
1155 }
1156 
1157 static const struct dev_pm_ops azx_pm = {
1158 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1159 #ifdef CONFIG_PM_SLEEP
1160 	.prepare = azx_prepare,
1161 	.complete = azx_complete,
1162 	.freeze_noirq = azx_freeze_noirq,
1163 	.thaw_noirq = azx_thaw_noirq,
1164 #endif
1165 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1166 };
1167 
1168 #define AZX_PM_OPS	&azx_pm
1169 #else
1170 #define azx_add_card_list(chip) /* NOP */
1171 #define azx_del_card_list(chip) /* NOP */
1172 #define AZX_PM_OPS	NULL
1173 #endif /* CONFIG_PM */
1174 
1175 
1176 static int azx_probe_continue(struct azx *chip);
1177 
1178 #ifdef SUPPORT_VGA_SWITCHEROO
1179 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1180 
1181 static void azx_vs_set_state(struct pci_dev *pci,
1182 			     enum vga_switcheroo_state state)
1183 {
1184 	struct snd_card *card = pci_get_drvdata(pci);
1185 	struct azx *chip = card->private_data;
1186 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1187 	struct hda_codec *codec;
1188 	bool disabled;
1189 
1190 	wait_for_completion(&hda->probe_wait);
1191 	if (hda->init_failed)
1192 		return;
1193 
1194 	disabled = (state == VGA_SWITCHEROO_OFF);
1195 	if (chip->disabled == disabled)
1196 		return;
1197 
1198 	if (!hda->probe_continued) {
1199 		chip->disabled = disabled;
1200 		if (!disabled) {
1201 			dev_info(chip->card->dev,
1202 				 "Start delayed initialization\n");
1203 			if (azx_probe_continue(chip) < 0)
1204 				dev_err(chip->card->dev, "initialization error\n");
1205 		}
1206 	} else {
1207 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1208 			 disabled ? "Disabling" : "Enabling");
1209 		if (disabled) {
1210 			list_for_each_codec(codec, &chip->bus) {
1211 				pm_runtime_suspend(hda_codec_dev(codec));
1212 				pm_runtime_disable(hda_codec_dev(codec));
1213 			}
1214 			pm_runtime_suspend(card->dev);
1215 			pm_runtime_disable(card->dev);
1216 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1217 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1218 			 * put ourselves there */
1219 			pci->current_state = PCI_D3cold;
1220 			chip->disabled = true;
1221 			if (snd_hda_lock_devices(&chip->bus))
1222 				dev_warn(chip->card->dev,
1223 					 "Cannot lock devices!\n");
1224 		} else {
1225 			snd_hda_unlock_devices(&chip->bus);
1226 			chip->disabled = false;
1227 			pm_runtime_enable(card->dev);
1228 			list_for_each_codec(codec, &chip->bus) {
1229 				pm_runtime_enable(hda_codec_dev(codec));
1230 				pm_runtime_resume(hda_codec_dev(codec));
1231 			}
1232 		}
1233 	}
1234 }
1235 
1236 static bool azx_vs_can_switch(struct pci_dev *pci)
1237 {
1238 	struct snd_card *card = pci_get_drvdata(pci);
1239 	struct azx *chip = card->private_data;
1240 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1241 
1242 	wait_for_completion(&hda->probe_wait);
1243 	if (hda->init_failed)
1244 		return false;
1245 	if (chip->disabled || !hda->probe_continued)
1246 		return true;
1247 	if (snd_hda_lock_devices(&chip->bus))
1248 		return false;
1249 	snd_hda_unlock_devices(&chip->bus);
1250 	return true;
1251 }
1252 
1253 /*
1254  * The discrete GPU cannot power down unless the HDA controller runtime
1255  * suspends, so activate runtime PM on codecs even if power_save == 0.
1256  */
1257 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1258 {
1259 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1260 	struct hda_codec *codec;
1261 
1262 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1263 		list_for_each_codec(codec, &chip->bus)
1264 			codec->auto_runtime_pm = 1;
1265 		/* reset the power save setup */
1266 		if (chip->running)
1267 			set_default_power_save(chip);
1268 	}
1269 }
1270 
1271 static void azx_vs_gpu_bound(struct pci_dev *pci,
1272 			     enum vga_switcheroo_client_id client_id)
1273 {
1274 	struct snd_card *card = pci_get_drvdata(pci);
1275 	struct azx *chip = card->private_data;
1276 
1277 	if (client_id == VGA_SWITCHEROO_DIS)
1278 		chip->bus.keep_power = 0;
1279 	setup_vga_switcheroo_runtime_pm(chip);
1280 }
1281 
1282 static void init_vga_switcheroo(struct azx *chip)
1283 {
1284 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1285 	struct pci_dev *p = get_bound_vga(chip->pci);
1286 	struct pci_dev *parent;
1287 	if (p) {
1288 		dev_info(chip->card->dev,
1289 			 "Handle vga_switcheroo audio client\n");
1290 		hda->use_vga_switcheroo = 1;
1291 
1292 		/* cleared in either gpu_bound op or codec probe, or when its
1293 		 * upstream port has _PR3 (i.e. dGPU).
1294 		 */
1295 		parent = pci_upstream_bridge(p);
1296 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1297 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1298 		pci_dev_put(p);
1299 	}
1300 }
1301 
1302 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1303 	.set_gpu_state = azx_vs_set_state,
1304 	.can_switch = azx_vs_can_switch,
1305 	.gpu_bound = azx_vs_gpu_bound,
1306 };
1307 
1308 static int register_vga_switcheroo(struct azx *chip)
1309 {
1310 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1311 	struct pci_dev *p;
1312 	int err;
1313 
1314 	if (!hda->use_vga_switcheroo)
1315 		return 0;
1316 
1317 	p = get_bound_vga(chip->pci);
1318 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1319 	pci_dev_put(p);
1320 
1321 	if (err < 0)
1322 		return err;
1323 	hda->vga_switcheroo_registered = 1;
1324 
1325 	return 0;
1326 }
1327 #else
1328 #define init_vga_switcheroo(chip)		/* NOP */
1329 #define register_vga_switcheroo(chip)		0
1330 #define check_hdmi_disabled(pci)	false
1331 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1332 #endif /* SUPPORT_VGA_SWITCHER */
1333 
1334 /*
1335  * destructor
1336  */
1337 static void azx_free(struct azx *chip)
1338 {
1339 	struct pci_dev *pci = chip->pci;
1340 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1341 	struct hdac_bus *bus = azx_bus(chip);
1342 
1343 	if (hda->freed)
1344 		return;
1345 
1346 	if (azx_has_pm_runtime(chip) && chip->running) {
1347 		pm_runtime_get_noresume(&pci->dev);
1348 		pm_runtime_forbid(&pci->dev);
1349 		pm_runtime_dont_use_autosuspend(&pci->dev);
1350 	}
1351 
1352 	chip->running = 0;
1353 
1354 	azx_del_card_list(chip);
1355 
1356 	hda->init_failed = 1; /* to be sure */
1357 	complete_all(&hda->probe_wait);
1358 
1359 	if (use_vga_switcheroo(hda)) {
1360 		if (chip->disabled && hda->probe_continued)
1361 			snd_hda_unlock_devices(&chip->bus);
1362 		if (hda->vga_switcheroo_registered)
1363 			vga_switcheroo_unregister_client(chip->pci);
1364 	}
1365 
1366 	if (bus->chip_init) {
1367 		azx_clear_irq_pending(chip);
1368 		azx_stop_all_streams(chip);
1369 		azx_stop_chip(chip);
1370 	}
1371 
1372 	if (bus->irq >= 0)
1373 		free_irq(bus->irq, (void*)chip);
1374 
1375 	azx_free_stream_pages(chip);
1376 	azx_free_streams(chip);
1377 	snd_hdac_bus_exit(bus);
1378 
1379 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1380 	release_firmware(chip->fw);
1381 #endif
1382 	display_power(chip, false);
1383 
1384 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1385 		snd_hdac_i915_exit(bus);
1386 
1387 	hda->freed = 1;
1388 }
1389 
1390 static int azx_dev_disconnect(struct snd_device *device)
1391 {
1392 	struct azx *chip = device->device_data;
1393 	struct hdac_bus *bus = azx_bus(chip);
1394 
1395 	chip->bus.shutdown = 1;
1396 	cancel_work_sync(&bus->unsol_work);
1397 
1398 	return 0;
1399 }
1400 
1401 static int azx_dev_free(struct snd_device *device)
1402 {
1403 	azx_free(device->device_data);
1404 	return 0;
1405 }
1406 
1407 #ifdef SUPPORT_VGA_SWITCHEROO
1408 #ifdef CONFIG_ACPI
1409 /* ATPX is in the integrated GPU's namespace */
1410 static bool atpx_present(void)
1411 {
1412 	struct pci_dev *pdev = NULL;
1413 	acpi_handle dhandle, atpx_handle;
1414 	acpi_status status;
1415 
1416 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1417 		dhandle = ACPI_HANDLE(&pdev->dev);
1418 		if (dhandle) {
1419 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1420 			if (ACPI_SUCCESS(status)) {
1421 				pci_dev_put(pdev);
1422 				return true;
1423 			}
1424 		}
1425 	}
1426 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1427 		dhandle = ACPI_HANDLE(&pdev->dev);
1428 		if (dhandle) {
1429 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1430 			if (ACPI_SUCCESS(status)) {
1431 				pci_dev_put(pdev);
1432 				return true;
1433 			}
1434 		}
1435 	}
1436 	return false;
1437 }
1438 #else
1439 static bool atpx_present(void)
1440 {
1441 	return false;
1442 }
1443 #endif
1444 
1445 /*
1446  * Check of disabled HDMI controller by vga_switcheroo
1447  */
1448 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1449 {
1450 	struct pci_dev *p;
1451 
1452 	/* check only discrete GPU */
1453 	switch (pci->vendor) {
1454 	case PCI_VENDOR_ID_ATI:
1455 	case PCI_VENDOR_ID_AMD:
1456 		if (pci->devfn == 1) {
1457 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1458 							pci->bus->number, 0);
1459 			if (p) {
1460 				/* ATPX is in the integrated GPU's ACPI namespace
1461 				 * rather than the dGPU's namespace. However,
1462 				 * the dGPU is the one who is involved in
1463 				 * vgaswitcheroo.
1464 				 */
1465 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1466 				    atpx_present())
1467 					return p;
1468 				pci_dev_put(p);
1469 			}
1470 		}
1471 		break;
1472 	case PCI_VENDOR_ID_NVIDIA:
1473 		if (pci->devfn == 1) {
1474 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1475 							pci->bus->number, 0);
1476 			if (p) {
1477 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1478 					return p;
1479 				pci_dev_put(p);
1480 			}
1481 		}
1482 		break;
1483 	}
1484 	return NULL;
1485 }
1486 
1487 static bool check_hdmi_disabled(struct pci_dev *pci)
1488 {
1489 	bool vga_inactive = false;
1490 	struct pci_dev *p = get_bound_vga(pci);
1491 
1492 	if (p) {
1493 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1494 			vga_inactive = true;
1495 		pci_dev_put(p);
1496 	}
1497 	return vga_inactive;
1498 }
1499 #endif /* SUPPORT_VGA_SWITCHEROO */
1500 
1501 /*
1502  * allow/deny-listing for position_fix
1503  */
1504 static const struct snd_pci_quirk position_fix_list[] = {
1505 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1506 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1507 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1508 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1509 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1510 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1511 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1512 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1514 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1519 	{}
1520 };
1521 
1522 static int check_position_fix(struct azx *chip, int fix)
1523 {
1524 	const struct snd_pci_quirk *q;
1525 
1526 	switch (fix) {
1527 	case POS_FIX_AUTO:
1528 	case POS_FIX_LPIB:
1529 	case POS_FIX_POSBUF:
1530 	case POS_FIX_VIACOMBO:
1531 	case POS_FIX_COMBO:
1532 	case POS_FIX_SKL:
1533 	case POS_FIX_FIFO:
1534 		return fix;
1535 	}
1536 
1537 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1538 	if (q) {
1539 		dev_info(chip->card->dev,
1540 			 "position_fix set to %d for device %04x:%04x\n",
1541 			 q->value, q->subvendor, q->subdevice);
1542 		return q->value;
1543 	}
1544 
1545 	/* Check VIA/ATI HD Audio Controller exist */
1546 	if (chip->driver_type == AZX_DRIVER_VIA) {
1547 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1548 		return POS_FIX_VIACOMBO;
1549 	}
1550 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1551 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1552 		return POS_FIX_FIFO;
1553 	}
1554 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1555 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1556 		return POS_FIX_LPIB;
1557 	}
1558 	if (chip->driver_type == AZX_DRIVER_SKL) {
1559 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1560 		return POS_FIX_SKL;
1561 	}
1562 	return POS_FIX_AUTO;
1563 }
1564 
1565 static void assign_position_fix(struct azx *chip, int fix)
1566 {
1567 	static const azx_get_pos_callback_t callbacks[] = {
1568 		[POS_FIX_AUTO] = NULL,
1569 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1570 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1571 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1572 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1573 		[POS_FIX_SKL] = azx_get_pos_posbuf,
1574 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1575 	};
1576 
1577 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1578 
1579 	/* combo mode uses LPIB only for playback */
1580 	if (fix == POS_FIX_COMBO)
1581 		chip->get_position[1] = NULL;
1582 
1583 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1584 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1585 		chip->get_delay[0] = chip->get_delay[1] =
1586 			azx_get_delay_from_lpib;
1587 	}
1588 
1589 	if (fix == POS_FIX_FIFO)
1590 		chip->get_delay[0] = chip->get_delay[1] =
1591 			azx_get_delay_from_fifo;
1592 }
1593 
1594 /*
1595  * deny-lists for probe_mask
1596  */
1597 static const struct snd_pci_quirk probe_mask_list[] = {
1598 	/* Thinkpad often breaks the controller communication when accessing
1599 	 * to the non-working (or non-existing) modem codec slot.
1600 	 */
1601 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1602 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1603 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1604 	/* broken BIOS */
1605 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1606 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1607 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1608 	/* forced codec slots */
1609 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1610 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1611 	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1612 	/* WinFast VP200 H (Teradici) user reported broken communication */
1613 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1614 	{}
1615 };
1616 
1617 #define AZX_FORCE_CODEC_MASK	0x100
1618 
1619 static void check_probe_mask(struct azx *chip, int dev)
1620 {
1621 	const struct snd_pci_quirk *q;
1622 
1623 	chip->codec_probe_mask = probe_mask[dev];
1624 	if (chip->codec_probe_mask == -1) {
1625 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1626 		if (q) {
1627 			dev_info(chip->card->dev,
1628 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1629 				 q->value, q->subvendor, q->subdevice);
1630 			chip->codec_probe_mask = q->value;
1631 		}
1632 	}
1633 
1634 	/* check forced option */
1635 	if (chip->codec_probe_mask != -1 &&
1636 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1637 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1638 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1639 			 (int)azx_bus(chip)->codec_mask);
1640 	}
1641 }
1642 
1643 /*
1644  * allow/deny-list for enable_msi
1645  */
1646 static const struct snd_pci_quirk msi_deny_list[] = {
1647 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1648 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1649 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1650 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1651 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1652 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1653 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1654 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1655 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1656 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1657 	{}
1658 };
1659 
1660 static void check_msi(struct azx *chip)
1661 {
1662 	const struct snd_pci_quirk *q;
1663 
1664 	if (enable_msi >= 0) {
1665 		chip->msi = !!enable_msi;
1666 		return;
1667 	}
1668 	chip->msi = 1;	/* enable MSI as default */
1669 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1670 	if (q) {
1671 		dev_info(chip->card->dev,
1672 			 "msi for device %04x:%04x set to %d\n",
1673 			 q->subvendor, q->subdevice, q->value);
1674 		chip->msi = q->value;
1675 		return;
1676 	}
1677 
1678 	/* NVidia chipsets seem to cause troubles with MSI */
1679 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1680 		dev_info(chip->card->dev, "Disabling MSI\n");
1681 		chip->msi = 0;
1682 	}
1683 }
1684 
1685 /* check the snoop mode availability */
1686 static void azx_check_snoop_available(struct azx *chip)
1687 {
1688 	int snoop = hda_snoop;
1689 
1690 	if (snoop >= 0) {
1691 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1692 			 snoop ? "snoop" : "non-snoop");
1693 		chip->snoop = snoop;
1694 		chip->uc_buffer = !snoop;
1695 		return;
1696 	}
1697 
1698 	snoop = true;
1699 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1700 	    chip->driver_type == AZX_DRIVER_VIA) {
1701 		/* force to non-snoop mode for a new VIA controller
1702 		 * when BIOS is set
1703 		 */
1704 		u8 val;
1705 		pci_read_config_byte(chip->pci, 0x42, &val);
1706 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1707 				      chip->pci->revision == 0x20))
1708 			snoop = false;
1709 	}
1710 
1711 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1712 		snoop = false;
1713 
1714 	chip->snoop = snoop;
1715 	if (!snoop) {
1716 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1717 		/* C-Media requires non-cached pages only for CORB/RIRB */
1718 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1719 			chip->uc_buffer = true;
1720 	}
1721 }
1722 
1723 static void azx_probe_work(struct work_struct *work)
1724 {
1725 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1726 	azx_probe_continue(&hda->chip);
1727 }
1728 
1729 static int default_bdl_pos_adj(struct azx *chip)
1730 {
1731 	/* some exceptions: Atoms seem problematic with value 1 */
1732 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1733 		switch (chip->pci->device) {
1734 		case 0x0f04: /* Baytrail */
1735 		case 0x2284: /* Braswell */
1736 			return 32;
1737 		}
1738 	}
1739 
1740 	switch (chip->driver_type) {
1741 	case AZX_DRIVER_ICH:
1742 	case AZX_DRIVER_PCH:
1743 		return 1;
1744 	default:
1745 		return 32;
1746 	}
1747 }
1748 
1749 /*
1750  * constructor
1751  */
1752 static const struct hda_controller_ops pci_hda_ops;
1753 
1754 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1755 		      int dev, unsigned int driver_caps,
1756 		      struct azx **rchip)
1757 {
1758 	static const struct snd_device_ops ops = {
1759 		.dev_disconnect = azx_dev_disconnect,
1760 		.dev_free = azx_dev_free,
1761 	};
1762 	struct hda_intel *hda;
1763 	struct azx *chip;
1764 	int err;
1765 
1766 	*rchip = NULL;
1767 
1768 	err = pcim_enable_device(pci);
1769 	if (err < 0)
1770 		return err;
1771 
1772 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1773 	if (!hda)
1774 		return -ENOMEM;
1775 
1776 	chip = &hda->chip;
1777 	mutex_init(&chip->open_mutex);
1778 	chip->card = card;
1779 	chip->pci = pci;
1780 	chip->ops = &pci_hda_ops;
1781 	chip->driver_caps = driver_caps;
1782 	chip->driver_type = driver_caps & 0xff;
1783 	check_msi(chip);
1784 	chip->dev_index = dev;
1785 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1786 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1787 	INIT_LIST_HEAD(&chip->pcm_list);
1788 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1789 	INIT_LIST_HEAD(&hda->list);
1790 	init_vga_switcheroo(chip);
1791 	init_completion(&hda->probe_wait);
1792 
1793 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1794 
1795 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1796 		chip->fallback_to_single_cmd = 1;
1797 	else /* explicitly set to single_cmd or not */
1798 		chip->single_cmd = single_cmd;
1799 
1800 	azx_check_snoop_available(chip);
1801 
1802 	if (bdl_pos_adj[dev] < 0)
1803 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1804 	else
1805 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1806 
1807 	err = azx_bus_init(chip, model[dev]);
1808 	if (err < 0)
1809 		return err;
1810 
1811 	/* use the non-cached pages in non-snoop mode */
1812 	if (!azx_snoop(chip))
1813 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC_SG;
1814 
1815 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1816 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1817 		chip->bus.core.needs_damn_long_delay = 1;
1818 	}
1819 
1820 	check_probe_mask(chip, dev);
1821 
1822 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1823 	if (err < 0) {
1824 		dev_err(card->dev, "Error creating device [card]!\n");
1825 		azx_free(chip);
1826 		return err;
1827 	}
1828 
1829 	/* continue probing in work context as may trigger request module */
1830 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1831 
1832 	*rchip = chip;
1833 
1834 	return 0;
1835 }
1836 
1837 static int azx_first_init(struct azx *chip)
1838 {
1839 	int dev = chip->dev_index;
1840 	struct pci_dev *pci = chip->pci;
1841 	struct snd_card *card = chip->card;
1842 	struct hdac_bus *bus = azx_bus(chip);
1843 	int err;
1844 	unsigned short gcap;
1845 	unsigned int dma_bits = 64;
1846 
1847 #if BITS_PER_LONG != 64
1848 	/* Fix up base address on ULI M5461 */
1849 	if (chip->driver_type == AZX_DRIVER_ULI) {
1850 		u16 tmp3;
1851 		pci_read_config_word(pci, 0x40, &tmp3);
1852 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1853 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1854 	}
1855 #endif
1856 
1857 	err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");
1858 	if (err < 0)
1859 		return err;
1860 
1861 	bus->addr = pci_resource_start(pci, 0);
1862 	bus->remap_addr = pcim_iomap_table(pci)[0];
1863 
1864 	if (chip->driver_type == AZX_DRIVER_SKL)
1865 		snd_hdac_bus_parse_capabilities(bus);
1866 
1867 	/*
1868 	 * Some Intel CPUs has always running timer (ART) feature and
1869 	 * controller may have Global time sync reporting capability, so
1870 	 * check both of these before declaring synchronized time reporting
1871 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1872 	 */
1873 	chip->gts_present = false;
1874 
1875 #ifdef CONFIG_X86
1876 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1877 		chip->gts_present = true;
1878 #endif
1879 
1880 	if (chip->msi) {
1881 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1882 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1883 			pci->no_64bit_msi = true;
1884 		}
1885 		if (pci_enable_msi(pci) < 0)
1886 			chip->msi = 0;
1887 	}
1888 
1889 	pci_set_master(pci);
1890 
1891 	gcap = azx_readw(chip, GCAP);
1892 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1893 
1894 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1895 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1896 		dma_bits = 40;
1897 
1898 	/* disable SB600 64bit support for safety */
1899 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1900 		struct pci_dev *p_smbus;
1901 		dma_bits = 40;
1902 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1903 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1904 					 NULL);
1905 		if (p_smbus) {
1906 			if (p_smbus->revision < 0x30)
1907 				gcap &= ~AZX_GCAP_64OK;
1908 			pci_dev_put(p_smbus);
1909 		}
1910 	}
1911 
1912 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1913 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1914 		dma_bits = 40;
1915 
1916 	/* disable 64bit DMA address on some devices */
1917 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1918 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1919 		gcap &= ~AZX_GCAP_64OK;
1920 	}
1921 
1922 	/* disable buffer size rounding to 128-byte multiples if supported */
1923 	if (align_buffer_size >= 0)
1924 		chip->align_buffer_size = !!align_buffer_size;
1925 	else {
1926 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1927 			chip->align_buffer_size = 0;
1928 		else
1929 			chip->align_buffer_size = 1;
1930 	}
1931 
1932 	/* allow 64bit DMA address if supported by H/W */
1933 	if (!(gcap & AZX_GCAP_64OK))
1934 		dma_bits = 32;
1935 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1936 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1937 	dma_set_max_seg_size(&pci->dev, UINT_MAX);
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 		/* keep running the rest for the runtime PM */
1996 	}
1997 
1998 	if (azx_acquire_irq(chip, 0) < 0)
1999 		return -EBUSY;
2000 
2001 	strcpy(card->driver, "HDA-Intel");
2002 	strscpy(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 
2018 	if (fw)
2019 		chip->fw = fw;
2020 	else
2021 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2022 	if (!chip->disabled) {
2023 		/* continue probing */
2024 		azx_probe_continue(chip);
2025 	}
2026 }
2027 #endif
2028 
2029 static int disable_msi_reset_irq(struct azx *chip)
2030 {
2031 	struct hdac_bus *bus = azx_bus(chip);
2032 	int err;
2033 
2034 	free_irq(bus->irq, chip);
2035 	bus->irq = -1;
2036 	chip->card->sync_irq = -1;
2037 	pci_disable_msi(chip->pci);
2038 	chip->msi = 0;
2039 	err = azx_acquire_irq(chip, 1);
2040 	if (err < 0)
2041 		return err;
2042 
2043 	return 0;
2044 }
2045 
2046 /* Denylist for skipping the whole probe:
2047  * some HD-audio PCI entries are exposed without any codecs, and such devices
2048  * should be ignored from the beginning.
2049  */
2050 static const struct pci_device_id driver_denylist[] = {
2051 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2052 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2053 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2054 	{}
2055 };
2056 
2057 static const struct hda_controller_ops pci_hda_ops = {
2058 	.disable_msi_reset_irq = disable_msi_reset_irq,
2059 	.position_check = azx_position_check,
2060 };
2061 
2062 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2063 
2064 static int azx_probe(struct pci_dev *pci,
2065 		     const struct pci_device_id *pci_id)
2066 {
2067 	struct snd_card *card;
2068 	struct hda_intel *hda;
2069 	struct azx *chip;
2070 	bool schedule_probe;
2071 	int dev;
2072 	int err;
2073 
2074 	if (pci_match_id(driver_denylist, pci)) {
2075 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2076 		return -ENODEV;
2077 	}
2078 
2079 	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2080 	if (dev >= SNDRV_CARDS)
2081 		return -ENODEV;
2082 	if (!enable[dev]) {
2083 		set_bit(dev, probed_devs);
2084 		return -ENOENT;
2085 	}
2086 
2087 	/*
2088 	 * stop probe if another Intel's DSP driver should be activated
2089 	 */
2090 	if (dmic_detect) {
2091 		err = snd_intel_dsp_driver_probe(pci);
2092 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2093 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2094 			return -ENODEV;
2095 		}
2096 	} else {
2097 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2098 	}
2099 
2100 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2101 			   0, &card);
2102 	if (err < 0) {
2103 		dev_err(&pci->dev, "Error creating card!\n");
2104 		return err;
2105 	}
2106 
2107 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2108 	if (err < 0)
2109 		goto out_free;
2110 	card->private_data = chip;
2111 	hda = container_of(chip, struct hda_intel, chip);
2112 
2113 	pci_set_drvdata(pci, card);
2114 
2115 	err = register_vga_switcheroo(chip);
2116 	if (err < 0) {
2117 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2118 		goto out_free;
2119 	}
2120 
2121 	if (check_hdmi_disabled(pci)) {
2122 		dev_info(card->dev, "VGA controller is disabled\n");
2123 		dev_info(card->dev, "Delaying initialization\n");
2124 		chip->disabled = true;
2125 	}
2126 
2127 	schedule_probe = !chip->disabled;
2128 
2129 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2130 	if (patch[dev] && *patch[dev]) {
2131 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2132 			 patch[dev]);
2133 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2134 					      &pci->dev, GFP_KERNEL, card,
2135 					      azx_firmware_cb);
2136 		if (err < 0)
2137 			goto out_free;
2138 		schedule_probe = false; /* continued in azx_firmware_cb() */
2139 	}
2140 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2141 
2142 #ifndef CONFIG_SND_HDA_I915
2143 	if (CONTROLLER_IN_GPU(pci))
2144 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2145 #endif
2146 
2147 	if (schedule_probe)
2148 		schedule_delayed_work(&hda->probe_work, 0);
2149 
2150 	set_bit(dev, probed_devs);
2151 	if (chip->disabled)
2152 		complete_all(&hda->probe_wait);
2153 	return 0;
2154 
2155 out_free:
2156 	snd_card_free(card);
2157 	return err;
2158 }
2159 
2160 #ifdef CONFIG_PM
2161 /* On some boards setting power_save to a non 0 value leads to clicking /
2162  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2163  * figure out how to avoid these sounds, but that is not always feasible.
2164  * So we keep a list of devices where we disable powersaving as its known
2165  * to causes problems on these devices.
2166  */
2167 static const struct snd_pci_quirk power_save_denylist[] = {
2168 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2169 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2170 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2171 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2172 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2173 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2174 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2175 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 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_denylist);
2210 		if (q && val) {
2211 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, 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 const 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 	if (chip->disabled || hda->init_failed)
2235 		return -EIO;
2236 	if (hda->probe_retry)
2237 		goto probe_retry;
2238 
2239 	to_hda_bus(bus)->bus_probing = 1;
2240 	hda->probe_continued = 1;
2241 
2242 	/* bind with i915 if needed */
2243 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2244 		err = snd_hdac_i915_init(bus);
2245 		if (err < 0) {
2246 			/* if the controller is bound only with HDMI/DP
2247 			 * (for HSW and BDW), we need to abort the probe;
2248 			 * for other chips, still continue probing as other
2249 			 * codecs can be on the same link.
2250 			 */
2251 			if (CONTROLLER_IN_GPU(pci)) {
2252 				dev_err(chip->card->dev,
2253 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2254 				goto out_free;
2255 			} else {
2256 				/* don't bother any longer */
2257 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2258 			}
2259 		}
2260 
2261 		/* HSW/BDW controllers need this power */
2262 		if (CONTROLLER_IN_GPU(pci))
2263 			hda->need_i915_power = true;
2264 	}
2265 
2266 	/* Request display power well for the HDA controller or codec. For
2267 	 * Haswell/Broadwell, both the display HDA controller and codec need
2268 	 * this power. For other platforms, like Baytrail/Braswell, only the
2269 	 * display codec needs the power and it can be released after probe.
2270 	 */
2271 	display_power(chip, true);
2272 
2273 	err = azx_first_init(chip);
2274 	if (err < 0)
2275 		goto out_free;
2276 
2277 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2278 	chip->beep_mode = beep_mode[dev];
2279 #endif
2280 
2281 	/* create codec instances */
2282 	if (bus->codec_mask) {
2283 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2284 		if (err < 0)
2285 			goto out_free;
2286 	}
2287 
2288 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2289 	if (chip->fw) {
2290 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2291 					 chip->fw->data);
2292 		if (err < 0)
2293 			goto out_free;
2294 #ifndef CONFIG_PM
2295 		release_firmware(chip->fw); /* no longer needed */
2296 		chip->fw = NULL;
2297 #endif
2298 	}
2299 #endif
2300 
2301  probe_retry:
2302 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2303 		err = azx_codec_configure(chip);
2304 		if (err) {
2305 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2306 			    ++hda->probe_retry < 60) {
2307 				schedule_delayed_work(&hda->probe_work,
2308 						      msecs_to_jiffies(1000));
2309 				return 0; /* keep things up */
2310 			}
2311 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2312 			goto out_free;
2313 		}
2314 	}
2315 
2316 	err = snd_card_register(chip->card);
2317 	if (err < 0)
2318 		goto out_free;
2319 
2320 	setup_vga_switcheroo_runtime_pm(chip);
2321 
2322 	chip->running = 1;
2323 	azx_add_card_list(chip);
2324 
2325 	set_default_power_save(chip);
2326 
2327 	if (azx_has_pm_runtime(chip)) {
2328 		pm_runtime_use_autosuspend(&pci->dev);
2329 		pm_runtime_allow(&pci->dev);
2330 		pm_runtime_put_autosuspend(&pci->dev);
2331 	}
2332 
2333 out_free:
2334 	if (err < 0) {
2335 		pci_set_drvdata(pci, NULL);
2336 		snd_card_free(chip->card);
2337 		return err;
2338 	}
2339 
2340 	if (!hda->need_i915_power)
2341 		display_power(chip, false);
2342 	complete_all(&hda->probe_wait);
2343 	to_hda_bus(bus)->bus_probing = 0;
2344 	hda->probe_retry = 0;
2345 	return 0;
2346 }
2347 
2348 static void azx_remove(struct pci_dev *pci)
2349 {
2350 	struct snd_card *card = pci_get_drvdata(pci);
2351 	struct azx *chip;
2352 	struct hda_intel *hda;
2353 
2354 	if (card) {
2355 		/* cancel the pending probing work */
2356 		chip = card->private_data;
2357 		hda = container_of(chip, struct hda_intel, chip);
2358 		/* FIXME: below is an ugly workaround.
2359 		 * Both device_release_driver() and driver_probe_device()
2360 		 * take *both* the device's and its parent's lock before
2361 		 * calling the remove() and probe() callbacks.  The codec
2362 		 * probe takes the locks of both the codec itself and its
2363 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2364 		 * the PCI controller is unbound, it takes its lock, too
2365 		 * ==> ouch, a deadlock!
2366 		 * As a workaround, we unlock temporarily here the controller
2367 		 * device during cancel_work_sync() call.
2368 		 */
2369 		device_unlock(&pci->dev);
2370 		cancel_delayed_work_sync(&hda->probe_work);
2371 		device_lock(&pci->dev);
2372 
2373 		clear_bit(chip->dev_index, probed_devs);
2374 		pci_set_drvdata(pci, NULL);
2375 		snd_card_free(card);
2376 	}
2377 }
2378 
2379 static void azx_shutdown(struct pci_dev *pci)
2380 {
2381 	struct snd_card *card = pci_get_drvdata(pci);
2382 	struct azx *chip;
2383 
2384 	if (!card)
2385 		return;
2386 	chip = card->private_data;
2387 	if (chip && chip->running)
2388 		__azx_shutdown_chip(chip, true);
2389 }
2390 
2391 /* PCI IDs */
2392 static const struct pci_device_id azx_ids[] = {
2393 	/* CPT */
2394 	{ PCI_DEVICE(0x8086, 0x1c20),
2395 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2396 	/* PBG */
2397 	{ PCI_DEVICE(0x8086, 0x1d20),
2398 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2399 	/* Panther Point */
2400 	{ PCI_DEVICE(0x8086, 0x1e20),
2401 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2402 	/* Lynx Point */
2403 	{ PCI_DEVICE(0x8086, 0x8c20),
2404 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2405 	/* 9 Series */
2406 	{ PCI_DEVICE(0x8086, 0x8ca0),
2407 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2408 	/* Wellsburg */
2409 	{ PCI_DEVICE(0x8086, 0x8d20),
2410 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2411 	{ PCI_DEVICE(0x8086, 0x8d21),
2412 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2413 	/* Lewisburg */
2414 	{ PCI_DEVICE(0x8086, 0xa1f0),
2415 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2416 	{ PCI_DEVICE(0x8086, 0xa270),
2417 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2418 	/* Lynx Point-LP */
2419 	{ PCI_DEVICE(0x8086, 0x9c20),
2420 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2421 	/* Lynx Point-LP */
2422 	{ PCI_DEVICE(0x8086, 0x9c21),
2423 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2424 	/* Wildcat Point-LP */
2425 	{ PCI_DEVICE(0x8086, 0x9ca0),
2426 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2427 	/* Sunrise Point */
2428 	{ PCI_DEVICE(0x8086, 0xa170),
2429 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2430 	/* Sunrise Point-LP */
2431 	{ PCI_DEVICE(0x8086, 0x9d70),
2432 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2433 	/* Kabylake */
2434 	{ PCI_DEVICE(0x8086, 0xa171),
2435 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2436 	/* Kabylake-LP */
2437 	{ PCI_DEVICE(0x8086, 0x9d71),
2438 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2439 	/* Kabylake-H */
2440 	{ PCI_DEVICE(0x8086, 0xa2f0),
2441 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2442 	/* Coffelake */
2443 	{ PCI_DEVICE(0x8086, 0xa348),
2444 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2445 	/* Cannonlake */
2446 	{ PCI_DEVICE(0x8086, 0x9dc8),
2447 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2448 	/* CometLake-LP */
2449 	{ PCI_DEVICE(0x8086, 0x02C8),
2450 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2451 	/* CometLake-H */
2452 	{ PCI_DEVICE(0x8086, 0x06C8),
2453 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2454 	{ PCI_DEVICE(0x8086, 0xf1c8),
2455 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2456 	/* CometLake-S */
2457 	{ PCI_DEVICE(0x8086, 0xa3f0),
2458 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2459 	/* CometLake-R */
2460 	{ PCI_DEVICE(0x8086, 0xf0c8),
2461 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2462 	/* Icelake */
2463 	{ PCI_DEVICE(0x8086, 0x34c8),
2464 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2465 	/* Icelake-H */
2466 	{ PCI_DEVICE(0x8086, 0x3dc8),
2467 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2468 	/* Jasperlake */
2469 	{ PCI_DEVICE(0x8086, 0x38c8),
2470 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2471 	{ PCI_DEVICE(0x8086, 0x4dc8),
2472 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2473 	/* Tigerlake */
2474 	{ PCI_DEVICE(0x8086, 0xa0c8),
2475 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2476 	/* Tigerlake-H */
2477 	{ PCI_DEVICE(0x8086, 0x43c8),
2478 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2479 	/* DG1 */
2480 	{ PCI_DEVICE(0x8086, 0x490d),
2481 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2482 	/* DG2 */
2483 	{ PCI_DEVICE(0x8086, 0x4f90),
2484 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2485 	{ PCI_DEVICE(0x8086, 0x4f91),
2486 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2487 	{ PCI_DEVICE(0x8086, 0x4f92),
2488 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2489 	/* Alderlake-S */
2490 	{ PCI_DEVICE(0x8086, 0x7ad0),
2491 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2492 	/* Alderlake-P */
2493 	{ PCI_DEVICE(0x8086, 0x51c8),
2494 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2495 	{ PCI_DEVICE(0x8086, 0x51c9),
2496 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2497 	{ PCI_DEVICE(0x8086, 0x51cd),
2498 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2499 	/* Alderlake-M */
2500 	{ PCI_DEVICE(0x8086, 0x51cc),
2501 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2502 	/* Alderlake-N */
2503 	{ PCI_DEVICE(0x8086, 0x54c8),
2504 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2505 	/* Elkhart Lake */
2506 	{ PCI_DEVICE(0x8086, 0x4b55),
2507 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2508 	{ PCI_DEVICE(0x8086, 0x4b58),
2509 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2510 	/* Raptor Lake */
2511 	{ PCI_DEVICE(0x8086, 0x7a50),
2512 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2513 	{ PCI_DEVICE(0x8086, 0x51ca),
2514 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2515 	{ PCI_DEVICE(0x8086, 0x51cb),
2516 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2517 	{ PCI_DEVICE(0x8086, 0x51ce),
2518 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2519 	{ PCI_DEVICE(0x8086, 0x51cf),
2520 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2521 	/* Meteorlake-P */
2522 	{ PCI_DEVICE(0x8086, 0x7e28),
2523 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2524 	/* Broxton-P(Apollolake) */
2525 	{ PCI_DEVICE(0x8086, 0x5a98),
2526 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2527 	/* Broxton-T */
2528 	{ PCI_DEVICE(0x8086, 0x1a98),
2529 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2530 	/* Gemini-Lake */
2531 	{ PCI_DEVICE(0x8086, 0x3198),
2532 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2533 	/* Haswell */
2534 	{ PCI_DEVICE(0x8086, 0x0a0c),
2535 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2536 	{ PCI_DEVICE(0x8086, 0x0c0c),
2537 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2538 	{ PCI_DEVICE(0x8086, 0x0d0c),
2539 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2540 	/* Broadwell */
2541 	{ PCI_DEVICE(0x8086, 0x160c),
2542 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2543 	/* 5 Series/3400 */
2544 	{ PCI_DEVICE(0x8086, 0x3b56),
2545 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2546 	{ PCI_DEVICE(0x8086, 0x3b57),
2547 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2548 	/* Poulsbo */
2549 	{ PCI_DEVICE(0x8086, 0x811b),
2550 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
2551 	  AZX_DCAPS_POSFIX_LPIB },
2552 	/* Oaktrail */
2553 	{ PCI_DEVICE(0x8086, 0x080a),
2554 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2555 	/* BayTrail */
2556 	{ PCI_DEVICE(0x8086, 0x0f04),
2557 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2558 	/* Braswell */
2559 	{ PCI_DEVICE(0x8086, 0x2284),
2560 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2561 	/* ICH6 */
2562 	{ PCI_DEVICE(0x8086, 0x2668),
2563 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2564 	/* ICH7 */
2565 	{ PCI_DEVICE(0x8086, 0x27d8),
2566 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2567 	/* ESB2 */
2568 	{ PCI_DEVICE(0x8086, 0x269a),
2569 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2570 	/* ICH8 */
2571 	{ PCI_DEVICE(0x8086, 0x284b),
2572 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2573 	/* ICH9 */
2574 	{ PCI_DEVICE(0x8086, 0x293e),
2575 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2576 	/* ICH9 */
2577 	{ PCI_DEVICE(0x8086, 0x293f),
2578 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2579 	/* ICH10 */
2580 	{ PCI_DEVICE(0x8086, 0x3a3e),
2581 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2582 	/* ICH10 */
2583 	{ PCI_DEVICE(0x8086, 0x3a6e),
2584 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2585 	/* Generic Intel */
2586 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2587 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2588 	  .class_mask = 0xffffff,
2589 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2590 	/* ATI SB 450/600/700/800/900 */
2591 	{ PCI_DEVICE(0x1002, 0x437b),
2592 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2593 	{ PCI_DEVICE(0x1002, 0x4383),
2594 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2595 	/* AMD Hudson */
2596 	{ PCI_DEVICE(0x1022, 0x780d),
2597 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2598 	/* AMD, X370 & co */
2599 	{ PCI_DEVICE(0x1022, 0x1457),
2600 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2601 	/* AMD, X570 & co */
2602 	{ PCI_DEVICE(0x1022, 0x1487),
2603 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2604 	/* AMD Stoney */
2605 	{ PCI_DEVICE(0x1022, 0x157a),
2606 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2607 			 AZX_DCAPS_PM_RUNTIME },
2608 	/* AMD Raven */
2609 	{ PCI_DEVICE(0x1022, 0x15e3),
2610 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2611 	/* ATI HDMI */
2612 	{ PCI_DEVICE(0x1002, 0x0002),
2613 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2614 	  AZX_DCAPS_PM_RUNTIME },
2615 	{ PCI_DEVICE(0x1002, 0x1308),
2616 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2617 	{ PCI_DEVICE(0x1002, 0x157a),
2618 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2619 	{ PCI_DEVICE(0x1002, 0x15b3),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2621 	{ PCI_DEVICE(0x1002, 0x793b),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2623 	{ PCI_DEVICE(0x1002, 0x7919),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2625 	{ PCI_DEVICE(0x1002, 0x960f),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2627 	{ PCI_DEVICE(0x1002, 0x970f),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2629 	{ PCI_DEVICE(0x1002, 0x9840),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2631 	{ PCI_DEVICE(0x1002, 0xaa00),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2633 	{ PCI_DEVICE(0x1002, 0xaa08),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2635 	{ PCI_DEVICE(0x1002, 0xaa10),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2637 	{ PCI_DEVICE(0x1002, 0xaa18),
2638 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2639 	{ PCI_DEVICE(0x1002, 0xaa20),
2640 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2641 	{ PCI_DEVICE(0x1002, 0xaa28),
2642 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2643 	{ PCI_DEVICE(0x1002, 0xaa30),
2644 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2645 	{ PCI_DEVICE(0x1002, 0xaa38),
2646 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2647 	{ PCI_DEVICE(0x1002, 0xaa40),
2648 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2649 	{ PCI_DEVICE(0x1002, 0xaa48),
2650 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2651 	{ PCI_DEVICE(0x1002, 0xaa50),
2652 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2653 	{ PCI_DEVICE(0x1002, 0xaa58),
2654 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2655 	{ PCI_DEVICE(0x1002, 0xaa60),
2656 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2657 	{ PCI_DEVICE(0x1002, 0xaa68),
2658 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2659 	{ PCI_DEVICE(0x1002, 0xaa80),
2660 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2661 	{ PCI_DEVICE(0x1002, 0xaa88),
2662 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2663 	{ PCI_DEVICE(0x1002, 0xaa90),
2664 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2665 	{ PCI_DEVICE(0x1002, 0xaa98),
2666 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2667 	{ PCI_DEVICE(0x1002, 0x9902),
2668 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2669 	{ PCI_DEVICE(0x1002, 0xaaa0),
2670 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2671 	{ PCI_DEVICE(0x1002, 0xaaa8),
2672 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2673 	{ PCI_DEVICE(0x1002, 0xaab0),
2674 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2675 	{ PCI_DEVICE(0x1002, 0xaac0),
2676 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2677 	  AZX_DCAPS_PM_RUNTIME },
2678 	{ PCI_DEVICE(0x1002, 0xaac8),
2679 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2680 	  AZX_DCAPS_PM_RUNTIME },
2681 	{ PCI_DEVICE(0x1002, 0xaad8),
2682 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2683 	  AZX_DCAPS_PM_RUNTIME },
2684 	{ PCI_DEVICE(0x1002, 0xaae0),
2685 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2686 	  AZX_DCAPS_PM_RUNTIME },
2687 	{ PCI_DEVICE(0x1002, 0xaae8),
2688 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2689 	  AZX_DCAPS_PM_RUNTIME },
2690 	{ PCI_DEVICE(0x1002, 0xaaf0),
2691 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2692 	  AZX_DCAPS_PM_RUNTIME },
2693 	{ PCI_DEVICE(0x1002, 0xaaf8),
2694 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2695 	  AZX_DCAPS_PM_RUNTIME },
2696 	{ PCI_DEVICE(0x1002, 0xab00),
2697 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2698 	  AZX_DCAPS_PM_RUNTIME },
2699 	{ PCI_DEVICE(0x1002, 0xab08),
2700 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2701 	  AZX_DCAPS_PM_RUNTIME },
2702 	{ PCI_DEVICE(0x1002, 0xab10),
2703 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2704 	  AZX_DCAPS_PM_RUNTIME },
2705 	{ PCI_DEVICE(0x1002, 0xab18),
2706 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2707 	  AZX_DCAPS_PM_RUNTIME },
2708 	{ PCI_DEVICE(0x1002, 0xab20),
2709 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2710 	  AZX_DCAPS_PM_RUNTIME },
2711 	{ PCI_DEVICE(0x1002, 0xab28),
2712 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2713 	  AZX_DCAPS_PM_RUNTIME },
2714 	{ PCI_DEVICE(0x1002, 0xab30),
2715 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2716 	  AZX_DCAPS_PM_RUNTIME },
2717 	{ PCI_DEVICE(0x1002, 0xab38),
2718 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2719 	  AZX_DCAPS_PM_RUNTIME },
2720 	/* VIA VT8251/VT8237A */
2721 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2722 	/* VIA GFX VT7122/VX900 */
2723 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2724 	/* VIA GFX VT6122/VX11 */
2725 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2726 	/* SIS966 */
2727 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2728 	/* ULI M5461 */
2729 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2730 	/* NVIDIA MCP */
2731 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2732 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2733 	  .class_mask = 0xffffff,
2734 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2735 	/* Teradici */
2736 	{ PCI_DEVICE(0x6549, 0x1200),
2737 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2738 	{ PCI_DEVICE(0x6549, 0x2200),
2739 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2740 	/* Creative X-Fi (CA0110-IBG) */
2741 	/* CTHDA chips */
2742 	{ PCI_DEVICE(0x1102, 0x0010),
2743 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2744 	{ PCI_DEVICE(0x1102, 0x0012),
2745 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2746 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2747 	/* the following entry conflicts with snd-ctxfi driver,
2748 	 * as ctxfi driver mutates from HD-audio to native mode with
2749 	 * a special command sequence.
2750 	 */
2751 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2752 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2753 	  .class_mask = 0xffffff,
2754 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2755 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2756 #else
2757 	/* this entry seems still valid -- i.e. without emu20kx chip */
2758 	{ PCI_DEVICE(0x1102, 0x0009),
2759 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2760 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2761 #endif
2762 	/* CM8888 */
2763 	{ PCI_DEVICE(0x13f6, 0x5011),
2764 	  .driver_data = AZX_DRIVER_CMEDIA |
2765 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2766 	/* Vortex86MX */
2767 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2768 	/* VMware HDAudio */
2769 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2770 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2771 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2772 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2773 	  .class_mask = 0xffffff,
2774 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2775 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2776 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2777 	  .class_mask = 0xffffff,
2778 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2779 	/* Zhaoxin */
2780 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2781 	{ 0, }
2782 };
2783 MODULE_DEVICE_TABLE(pci, azx_ids);
2784 
2785 /* pci_driver definition */
2786 static struct pci_driver azx_driver = {
2787 	.name = KBUILD_MODNAME,
2788 	.id_table = azx_ids,
2789 	.probe = azx_probe,
2790 	.remove = azx_remove,
2791 	.shutdown = azx_shutdown,
2792 	.driver = {
2793 		.pm = AZX_PM_OPS,
2794 	},
2795 };
2796 
2797 module_pci_driver(azx_driver);
2798