xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision d3402925)
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/apple-gmux.h>
54 #include <linux/firmware.h>
55 #include <sound/hda_codec.h>
56 #include "hda_controller.h"
57 #include "hda_intel.h"
58 
59 #define CREATE_TRACE_POINTS
60 #include "hda_intel_trace.h"
61 
62 /* position fix mode */
63 enum {
64 	POS_FIX_AUTO,
65 	POS_FIX_LPIB,
66 	POS_FIX_POSBUF,
67 	POS_FIX_VIACOMBO,
68 	POS_FIX_COMBO,
69 	POS_FIX_SKL,
70 	POS_FIX_FIFO,
71 };
72 
73 /* Defines for ATI HD Audio support in SB450 south bridge */
74 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
75 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
76 
77 /* Defines for Nvidia HDA support */
78 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
79 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
80 #define NVIDIA_HDA_ISTRM_COH          0x4d
81 #define NVIDIA_HDA_OSTRM_COH          0x4c
82 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
83 
84 /* Defines for Intel SCH HDA snoop control */
85 #define INTEL_HDA_CGCTL	 0x48
86 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
87 #define INTEL_SCH_HDA_DEVC      0x78
88 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
89 
90 /* max number of SDs */
91 /* ICH, ATI and VIA have 4 playback and 4 capture */
92 #define ICH6_NUM_CAPTURE	4
93 #define ICH6_NUM_PLAYBACK	4
94 
95 /* ULI has 6 playback and 5 capture */
96 #define ULI_NUM_CAPTURE		5
97 #define ULI_NUM_PLAYBACK	6
98 
99 /* ATI HDMI may have up to 8 playbacks and 0 capture */
100 #define ATIHDMI_NUM_CAPTURE	0
101 #define ATIHDMI_NUM_PLAYBACK	8
102 
103 
104 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
105 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
106 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
107 static char *model[SNDRV_CARDS];
108 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
109 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
110 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
111 static int probe_only[SNDRV_CARDS];
112 static int jackpoll_ms[SNDRV_CARDS];
113 static int single_cmd = -1;
114 static int enable_msi = -1;
115 #ifdef CONFIG_SND_HDA_PATCH_LOADER
116 static char *patch[SNDRV_CARDS];
117 #endif
118 #ifdef CONFIG_SND_HDA_INPUT_BEEP
119 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
120 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
121 #endif
122 static bool dmic_detect = 1;
123 static bool ctl_dev_id = IS_ENABLED(CONFIG_SND_HDA_CTL_DEV_ID) ? 1 : 0;
124 
125 module_param_array(index, int, NULL, 0444);
126 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
127 module_param_array(id, charp, NULL, 0444);
128 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
129 module_param_array(enable, bool, NULL, 0444);
130 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
131 module_param_array(model, charp, NULL, 0444);
132 MODULE_PARM_DESC(model, "Use the given board model.");
133 module_param_array(position_fix, int, NULL, 0444);
134 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
135 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
136 module_param_array(bdl_pos_adj, int, NULL, 0644);
137 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
138 module_param_array(probe_mask, int, NULL, 0444);
139 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
140 module_param_array(probe_only, int, NULL, 0444);
141 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
142 module_param_array(jackpoll_ms, int, NULL, 0444);
143 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
144 module_param(single_cmd, bint, 0444);
145 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
146 		 "(for debugging only).");
147 module_param(enable_msi, bint, 0444);
148 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
149 #ifdef CONFIG_SND_HDA_PATCH_LOADER
150 module_param_array(patch, charp, NULL, 0444);
151 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
152 #endif
153 #ifdef CONFIG_SND_HDA_INPUT_BEEP
154 module_param_array(beep_mode, bool, NULL, 0444);
155 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
156 			    "(0=off, 1=on) (default=1).");
157 #endif
158 module_param(dmic_detect, bool, 0444);
159 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
160 			     "(0=off, 1=on) (default=1); "
161 		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
162 module_param(ctl_dev_id, bool, 0444);
163 MODULE_PARM_DESC(ctl_dev_id, "Use control device identifier (based on codec address).");
164 
165 #ifdef CONFIG_PM
166 static int param_set_xint(const char *val, const struct kernel_param *kp);
167 static const struct kernel_param_ops param_ops_xint = {
168 	.set = param_set_xint,
169 	.get = param_get_int,
170 };
171 #define param_check_xint param_check_int
172 
173 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
174 module_param(power_save, xint, 0644);
175 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
176 		 "(in second, 0 = disable).");
177 
178 static bool pm_blacklist = true;
179 module_param(pm_blacklist, bool, 0644);
180 MODULE_PARM_DESC(pm_blacklist, "Enable power-management denylist");
181 
182 /* reset the HD-audio controller in power save mode.
183  * this may give more power-saving, but will take longer time to
184  * wake up.
185  */
186 static bool power_save_controller = 1;
187 module_param(power_save_controller, bool, 0644);
188 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
189 #else
190 #define power_save	0
191 #endif /* CONFIG_PM */
192 
193 static int align_buffer_size = -1;
194 module_param(align_buffer_size, bint, 0644);
195 MODULE_PARM_DESC(align_buffer_size,
196 		"Force buffer and period sizes to be multiple of 128 bytes.");
197 
198 #ifdef CONFIG_X86
199 static int hda_snoop = -1;
200 module_param_named(snoop, hda_snoop, bint, 0444);
201 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
202 #else
203 #define hda_snoop		true
204 #endif
205 
206 
207 MODULE_LICENSE("GPL");
208 MODULE_DESCRIPTION("Intel HDA driver");
209 
210 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
211 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
212 #define SUPPORT_VGA_SWITCHEROO
213 #endif
214 #endif
215 
216 
217 /*
218  */
219 
220 /* driver types */
221 enum {
222 	AZX_DRIVER_ICH,
223 	AZX_DRIVER_PCH,
224 	AZX_DRIVER_SCH,
225 	AZX_DRIVER_SKL,
226 	AZX_DRIVER_HDMI,
227 	AZX_DRIVER_ATI,
228 	AZX_DRIVER_ATIHDMI,
229 	AZX_DRIVER_ATIHDMI_NS,
230 	AZX_DRIVER_VIA,
231 	AZX_DRIVER_SIS,
232 	AZX_DRIVER_ULI,
233 	AZX_DRIVER_NVIDIA,
234 	AZX_DRIVER_TERA,
235 	AZX_DRIVER_CTX,
236 	AZX_DRIVER_CTHDA,
237 	AZX_DRIVER_CMEDIA,
238 	AZX_DRIVER_ZHAOXIN,
239 	AZX_DRIVER_GENERIC,
240 	AZX_NUM_DRIVERS, /* keep this as last entry */
241 };
242 
243 #define azx_get_snoop_type(chip) \
244 	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
245 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
246 
247 /* quirks for old Intel chipsets */
248 #define AZX_DCAPS_INTEL_ICH \
249 	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
250 
251 /* quirks for Intel PCH */
252 #define AZX_DCAPS_INTEL_PCH_BASE \
253 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
254 	 AZX_DCAPS_SNOOP_TYPE(SCH))
255 
256 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
257 #define AZX_DCAPS_INTEL_PCH_NOPM \
258 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
259 
260 /* PCH for HSW/BDW; with runtime PM */
261 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
262 #define AZX_DCAPS_INTEL_PCH \
263 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
264 
265 /* HSW HDMI */
266 #define AZX_DCAPS_INTEL_HASWELL \
267 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
268 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
269 	 AZX_DCAPS_SNOOP_TYPE(SCH))
270 
271 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
272 #define AZX_DCAPS_INTEL_BROADWELL \
273 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
274 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
275 	 AZX_DCAPS_SNOOP_TYPE(SCH))
276 
277 #define AZX_DCAPS_INTEL_BAYTRAIL \
278 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
279 
280 #define AZX_DCAPS_INTEL_BRASWELL \
281 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
282 	 AZX_DCAPS_I915_COMPONENT)
283 
284 #define AZX_DCAPS_INTEL_SKYLAKE \
285 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
286 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
287 
288 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
289 
290 /* quirks for ATI SB / AMD Hudson */
291 #define AZX_DCAPS_PRESET_ATI_SB \
292 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
293 	 AZX_DCAPS_SNOOP_TYPE(ATI))
294 
295 /* quirks for ATI/AMD HDMI */
296 #define AZX_DCAPS_PRESET_ATI_HDMI \
297 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
298 	 AZX_DCAPS_NO_MSI64)
299 
300 /* quirks for ATI HDMI with snoop off */
301 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
302 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
303 
304 /* quirks for AMD SB */
305 #define AZX_DCAPS_PRESET_AMD_SB \
306 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
307 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
308 	 AZX_DCAPS_RETRY_PROBE)
309 
310 /* quirks for Nvidia */
311 #define AZX_DCAPS_PRESET_NVIDIA \
312 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
313 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
314 
315 #define AZX_DCAPS_PRESET_CTHDA \
316 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
317 	 AZX_DCAPS_NO_64BIT |\
318 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
319 
320 /*
321  * vga_switcheroo support
322  */
323 #ifdef SUPPORT_VGA_SWITCHEROO
324 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
325 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
326 #else
327 #define use_vga_switcheroo(chip)	0
328 #define needs_eld_notify_link(chip)	false
329 #endif
330 
331 #define CONTROLLER_IN_GPU(pci) (((pci)->vendor == 0x8086) &&         \
332 				       (((pci)->device == 0x0a0c) || \
333 					((pci)->device == 0x0c0c) || \
334 					((pci)->device == 0x0d0c) || \
335 					((pci)->device == 0x160c) || \
336 					((pci)->device == 0x490d) || \
337 					((pci)->device == 0x4f90) || \
338 					((pci)->device == 0x4f91) || \
339 					((pci)->device == 0x4f92)))
340 
341 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
342 
343 static const char * const driver_short_names[] = {
344 	[AZX_DRIVER_ICH] = "HDA Intel",
345 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
346 	[AZX_DRIVER_SCH] = "HDA Intel MID",
347 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
348 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
349 	[AZX_DRIVER_ATI] = "HDA ATI SB",
350 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
351 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
352 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
353 	[AZX_DRIVER_SIS] = "HDA SIS966",
354 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
355 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
356 	[AZX_DRIVER_TERA] = "HDA Teradici",
357 	[AZX_DRIVER_CTX] = "HDA Creative",
358 	[AZX_DRIVER_CTHDA] = "HDA Creative",
359 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
360 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
361 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
362 };
363 
364 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
365 static void set_default_power_save(struct azx *chip);
366 
367 /*
368  * initialize the PCI registers
369  */
370 /* update bits in a PCI register byte */
371 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
372 			    unsigned char mask, unsigned char val)
373 {
374 	unsigned char data;
375 
376 	pci_read_config_byte(pci, reg, &data);
377 	data &= ~mask;
378 	data |= (val & mask);
379 	pci_write_config_byte(pci, reg, data);
380 }
381 
382 static void azx_init_pci(struct azx *chip)
383 {
384 	int snoop_type = azx_get_snoop_type(chip);
385 
386 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
387 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
388 	 * Ensuring these bits are 0 clears playback static on some HD Audio
389 	 * codecs.
390 	 * The PCI register TCSEL is defined in the Intel manuals.
391 	 */
392 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
393 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
394 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
395 	}
396 
397 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
398 	 * we need to enable snoop.
399 	 */
400 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
401 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
402 			azx_snoop(chip));
403 		update_pci_byte(chip->pci,
404 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
405 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
406 	}
407 
408 	/* For NVIDIA HDA, enable snoop */
409 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
410 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
411 			azx_snoop(chip));
412 		update_pci_byte(chip->pci,
413 				NVIDIA_HDA_TRANSREG_ADDR,
414 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
415 		update_pci_byte(chip->pci,
416 				NVIDIA_HDA_ISTRM_COH,
417 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
418 		update_pci_byte(chip->pci,
419 				NVIDIA_HDA_OSTRM_COH,
420 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
421 	}
422 
423 	/* Enable SCH/PCH snoop if needed */
424 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
425 		unsigned short snoop;
426 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
427 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
428 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
429 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
430 			if (!azx_snoop(chip))
431 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
432 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
433 			pci_read_config_word(chip->pci,
434 				INTEL_SCH_HDA_DEVC, &snoop);
435 		}
436 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
437 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
438 			"Disabled" : "Enabled");
439         }
440 }
441 
442 /*
443  * In BXT-P A0, HD-Audio DMA requests is later than expected,
444  * and makes an audio stream sensitive to system latencies when
445  * 24/32 bits are playing.
446  * Adjusting threshold of DMA fifo to force the DMA request
447  * sooner to improve latency tolerance at the expense of power.
448  */
449 static void bxt_reduce_dma_latency(struct azx *chip)
450 {
451 	u32 val;
452 
453 	val = azx_readl(chip, VS_EM4L);
454 	val &= (0x3 << 20);
455 	azx_writel(chip, VS_EM4L, val);
456 }
457 
458 /*
459  * ML_LCAP bits:
460  *  bit 0: 6 MHz Supported
461  *  bit 1: 12 MHz Supported
462  *  bit 2: 24 MHz Supported
463  *  bit 3: 48 MHz Supported
464  *  bit 4: 96 MHz Supported
465  *  bit 5: 192 MHz Supported
466  */
467 static int intel_get_lctl_scf(struct azx *chip)
468 {
469 	struct hdac_bus *bus = azx_bus(chip);
470 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
471 	u32 val, t;
472 	int i;
473 
474 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
475 
476 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
477 		t = preferred_bits[i];
478 		if (val & (1 << t))
479 			return t;
480 	}
481 
482 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
483 	return 0;
484 }
485 
486 static int intel_ml_lctl_set_power(struct azx *chip, int state)
487 {
488 	struct hdac_bus *bus = azx_bus(chip);
489 	u32 val;
490 	int timeout;
491 
492 	/*
493 	 * Changes to LCTL.SCF are only needed for the first multi-link dealing
494 	 * with external codecs
495 	 */
496 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
497 	val &= ~AZX_ML_LCTL_SPA;
498 	val |= state << AZX_ML_LCTL_SPA_SHIFT;
499 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
500 	/* wait for CPA */
501 	timeout = 50;
502 	while (timeout) {
503 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
504 		    AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
505 			return 0;
506 		timeout--;
507 		udelay(10);
508 	}
509 
510 	return -1;
511 }
512 
513 static void intel_init_lctl(struct azx *chip)
514 {
515 	struct hdac_bus *bus = azx_bus(chip);
516 	u32 val;
517 	int ret;
518 
519 	/* 0. check lctl register value is correct or not */
520 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
521 	/* only perform additional configurations if the SCF is initially based on 6MHz */
522 	if ((val & AZX_ML_LCTL_SCF) != 0)
523 		return;
524 
525 	/*
526 	 * Before operating on SPA, CPA must match SPA.
527 	 * Any deviation may result in undefined behavior.
528 	 */
529 	if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
530 		((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
531 		return;
532 
533 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
534 	ret = intel_ml_lctl_set_power(chip, 0);
535 	udelay(100);
536 	if (ret)
537 		goto set_spa;
538 
539 	/* 2. update SCF to select an audio clock different from 6MHz */
540 	val &= ~AZX_ML_LCTL_SCF;
541 	val |= intel_get_lctl_scf(chip);
542 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
543 
544 set_spa:
545 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
546 	intel_ml_lctl_set_power(chip, 1);
547 	udelay(100);
548 }
549 
550 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
551 {
552 	struct hdac_bus *bus = azx_bus(chip);
553 	struct pci_dev *pci = chip->pci;
554 	u32 val;
555 
556 	snd_hdac_set_codec_wakeup(bus, true);
557 	if (chip->driver_type == AZX_DRIVER_SKL) {
558 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
559 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
560 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
561 	}
562 	azx_init_chip(chip, full_reset);
563 	if (chip->driver_type == AZX_DRIVER_SKL) {
564 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
565 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
566 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
567 	}
568 
569 	snd_hdac_set_codec_wakeup(bus, false);
570 
571 	/* reduce dma latency to avoid noise */
572 	if (IS_BXT(pci))
573 		bxt_reduce_dma_latency(chip);
574 
575 	if (bus->mlcap != NULL)
576 		intel_init_lctl(chip);
577 }
578 
579 /* calculate runtime delay from LPIB */
580 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
581 				   unsigned int pos)
582 {
583 	struct snd_pcm_substream *substream = azx_dev->core.substream;
584 	int stream = substream->stream;
585 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
586 	int delay;
587 
588 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
589 		delay = pos - lpib_pos;
590 	else
591 		delay = lpib_pos - pos;
592 	if (delay < 0) {
593 		if (delay >= azx_dev->core.delay_negative_threshold)
594 			delay = 0;
595 		else
596 			delay += azx_dev->core.bufsize;
597 	}
598 
599 	if (delay >= azx_dev->core.period_bytes) {
600 		dev_info(chip->card->dev,
601 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
602 			 delay, azx_dev->core.period_bytes);
603 		delay = 0;
604 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
605 		chip->get_delay[stream] = NULL;
606 	}
607 
608 	return bytes_to_frames(substream->runtime, delay);
609 }
610 
611 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
612 
613 /* called from IRQ */
614 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
615 {
616 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
617 	int ok;
618 
619 	ok = azx_position_ok(chip, azx_dev);
620 	if (ok == 1) {
621 		azx_dev->irq_pending = 0;
622 		return ok;
623 	} else if (ok == 0) {
624 		/* bogus IRQ, process it later */
625 		azx_dev->irq_pending = 1;
626 		schedule_work(&hda->irq_pending_work);
627 	}
628 	return 0;
629 }
630 
631 #define display_power(chip, enable) \
632 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
633 
634 /*
635  * Check whether the current DMA position is acceptable for updating
636  * periods.  Returns non-zero if it's OK.
637  *
638  * Many HD-audio controllers appear pretty inaccurate about
639  * the update-IRQ timing.  The IRQ is issued before actually the
640  * data is processed.  So, we need to process it afterwords in a
641  * workqueue.
642  *
643  * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
644  */
645 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
646 {
647 	struct snd_pcm_substream *substream = azx_dev->core.substream;
648 	struct snd_pcm_runtime *runtime = substream->runtime;
649 	int stream = substream->stream;
650 	u32 wallclk;
651 	unsigned int pos;
652 	snd_pcm_uframes_t hwptr, target;
653 
654 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
655 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
656 		return -1;	/* bogus (too early) interrupt */
657 
658 	if (chip->get_position[stream])
659 		pos = chip->get_position[stream](chip, azx_dev);
660 	else { /* use the position buffer as default */
661 		pos = azx_get_pos_posbuf(chip, azx_dev);
662 		if (!pos || pos == (u32)-1) {
663 			dev_info(chip->card->dev,
664 				 "Invalid position buffer, using LPIB read method instead.\n");
665 			chip->get_position[stream] = azx_get_pos_lpib;
666 			if (chip->get_position[0] == azx_get_pos_lpib &&
667 			    chip->get_position[1] == azx_get_pos_lpib)
668 				azx_bus(chip)->use_posbuf = false;
669 			pos = azx_get_pos_lpib(chip, azx_dev);
670 			chip->get_delay[stream] = NULL;
671 		} else {
672 			chip->get_position[stream] = azx_get_pos_posbuf;
673 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
674 				chip->get_delay[stream] = azx_get_delay_from_lpib;
675 		}
676 	}
677 
678 	if (pos >= azx_dev->core.bufsize)
679 		pos = 0;
680 
681 	if (WARN_ONCE(!azx_dev->core.period_bytes,
682 		      "hda-intel: zero azx_dev->period_bytes"))
683 		return -1; /* this shouldn't happen! */
684 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
685 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
686 		/* NG - it's below the first next period boundary */
687 		return chip->bdl_pos_adj ? 0 : -1;
688 	azx_dev->core.start_wallclk += wallclk;
689 
690 	if (azx_dev->core.no_period_wakeup)
691 		return 1; /* OK, no need to check period boundary */
692 
693 	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
694 		return 1; /* OK, already in hwptr updating process */
695 
696 	/* check whether the period gets really elapsed */
697 	pos = bytes_to_frames(runtime, pos);
698 	hwptr = runtime->hw_ptr_base + pos;
699 	if (hwptr < runtime->status->hw_ptr)
700 		hwptr += runtime->buffer_size;
701 	target = runtime->hw_ptr_interrupt + runtime->period_size;
702 	if (hwptr < target) {
703 		/* too early wakeup, process it later */
704 		return chip->bdl_pos_adj ? 0 : -1;
705 	}
706 
707 	return 1; /* OK, it's fine */
708 }
709 
710 /*
711  * The work for pending PCM period updates.
712  */
713 static void azx_irq_pending_work(struct work_struct *work)
714 {
715 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
716 	struct azx *chip = &hda->chip;
717 	struct hdac_bus *bus = azx_bus(chip);
718 	struct hdac_stream *s;
719 	int pending, ok;
720 
721 	if (!hda->irq_pending_warned) {
722 		dev_info(chip->card->dev,
723 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
724 			 chip->card->number);
725 		hda->irq_pending_warned = 1;
726 	}
727 
728 	for (;;) {
729 		pending = 0;
730 		spin_lock_irq(&bus->reg_lock);
731 		list_for_each_entry(s, &bus->stream_list, list) {
732 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
733 			if (!azx_dev->irq_pending ||
734 			    !s->substream ||
735 			    !s->running)
736 				continue;
737 			ok = azx_position_ok(chip, azx_dev);
738 			if (ok > 0) {
739 				azx_dev->irq_pending = 0;
740 				spin_unlock(&bus->reg_lock);
741 				snd_pcm_period_elapsed(s->substream);
742 				spin_lock(&bus->reg_lock);
743 			} else if (ok < 0) {
744 				pending = 0;	/* too early */
745 			} else
746 				pending++;
747 		}
748 		spin_unlock_irq(&bus->reg_lock);
749 		if (!pending)
750 			return;
751 		msleep(1);
752 	}
753 }
754 
755 /* clear irq_pending flags and assure no on-going workq */
756 static void azx_clear_irq_pending(struct azx *chip)
757 {
758 	struct hdac_bus *bus = azx_bus(chip);
759 	struct hdac_stream *s;
760 
761 	spin_lock_irq(&bus->reg_lock);
762 	list_for_each_entry(s, &bus->stream_list, list) {
763 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
764 		azx_dev->irq_pending = 0;
765 	}
766 	spin_unlock_irq(&bus->reg_lock);
767 }
768 
769 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
770 {
771 	struct hdac_bus *bus = azx_bus(chip);
772 
773 	if (request_irq(chip->pci->irq, azx_interrupt,
774 			chip->msi ? 0 : IRQF_SHARED,
775 			chip->card->irq_descr, chip)) {
776 		dev_err(chip->card->dev,
777 			"unable to grab IRQ %d, disabling device\n",
778 			chip->pci->irq);
779 		if (do_disconnect)
780 			snd_card_disconnect(chip->card);
781 		return -1;
782 	}
783 	bus->irq = chip->pci->irq;
784 	chip->card->sync_irq = bus->irq;
785 	pci_intx(chip->pci, !chip->msi);
786 	return 0;
787 }
788 
789 /* get the current DMA position with correction on VIA chips */
790 static unsigned int azx_via_get_position(struct azx *chip,
791 					 struct azx_dev *azx_dev)
792 {
793 	unsigned int link_pos, mini_pos, bound_pos;
794 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
795 	unsigned int fifo_size;
796 
797 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
798 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
799 		/* Playback, no problem using link position */
800 		return link_pos;
801 	}
802 
803 	/* Capture */
804 	/* For new chipset,
805 	 * use mod to get the DMA position just like old chipset
806 	 */
807 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
808 	mod_dma_pos %= azx_dev->core.period_bytes;
809 
810 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
811 
812 	if (azx_dev->insufficient) {
813 		/* Link position never gather than FIFO size */
814 		if (link_pos <= fifo_size)
815 			return 0;
816 
817 		azx_dev->insufficient = 0;
818 	}
819 
820 	if (link_pos <= fifo_size)
821 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
822 	else
823 		mini_pos = link_pos - fifo_size;
824 
825 	/* Find nearest previous boudary */
826 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
827 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
828 	if (mod_link_pos >= fifo_size)
829 		bound_pos = link_pos - mod_link_pos;
830 	else if (mod_dma_pos >= mod_mini_pos)
831 		bound_pos = mini_pos - mod_mini_pos;
832 	else {
833 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
834 		if (bound_pos >= azx_dev->core.bufsize)
835 			bound_pos = 0;
836 	}
837 
838 	/* Calculate real DMA position we want */
839 	return bound_pos + mod_dma_pos;
840 }
841 
842 #define AMD_FIFO_SIZE	32
843 
844 /* get the current DMA position with FIFO size correction */
845 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
846 {
847 	struct snd_pcm_substream *substream = azx_dev->core.substream;
848 	struct snd_pcm_runtime *runtime = substream->runtime;
849 	unsigned int pos, delay;
850 
851 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
852 	if (!runtime)
853 		return pos;
854 
855 	runtime->delay = AMD_FIFO_SIZE;
856 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
857 	if (azx_dev->insufficient) {
858 		if (pos < delay) {
859 			delay = pos;
860 			runtime->delay = bytes_to_frames(runtime, pos);
861 		} else {
862 			azx_dev->insufficient = 0;
863 		}
864 	}
865 
866 	/* correct the DMA position for capture stream */
867 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
868 		if (pos < delay)
869 			pos += azx_dev->core.bufsize;
870 		pos -= delay;
871 	}
872 
873 	return pos;
874 }
875 
876 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
877 				   unsigned int pos)
878 {
879 	struct snd_pcm_substream *substream = azx_dev->core.substream;
880 
881 	/* just read back the calculated value in the above */
882 	return substream->runtime->delay;
883 }
884 
885 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
886 {
887 	azx_stop_chip(chip);
888 	if (!skip_link_reset)
889 		azx_enter_link_reset(chip);
890 	azx_clear_irq_pending(chip);
891 	display_power(chip, false);
892 }
893 
894 #ifdef CONFIG_PM
895 static DEFINE_MUTEX(card_list_lock);
896 static LIST_HEAD(card_list);
897 
898 static void azx_shutdown_chip(struct azx *chip)
899 {
900 	__azx_shutdown_chip(chip, false);
901 }
902 
903 static void azx_add_card_list(struct azx *chip)
904 {
905 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
906 	mutex_lock(&card_list_lock);
907 	list_add(&hda->list, &card_list);
908 	mutex_unlock(&card_list_lock);
909 }
910 
911 static void azx_del_card_list(struct azx *chip)
912 {
913 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
914 	mutex_lock(&card_list_lock);
915 	list_del_init(&hda->list);
916 	mutex_unlock(&card_list_lock);
917 }
918 
919 /* trigger power-save check at writing parameter */
920 static int param_set_xint(const char *val, const struct kernel_param *kp)
921 {
922 	struct hda_intel *hda;
923 	struct azx *chip;
924 	int prev = power_save;
925 	int ret = param_set_int(val, kp);
926 
927 	if (ret || prev == power_save)
928 		return ret;
929 
930 	mutex_lock(&card_list_lock);
931 	list_for_each_entry(hda, &card_list, list) {
932 		chip = &hda->chip;
933 		if (!hda->probe_continued || chip->disabled)
934 			continue;
935 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
936 	}
937 	mutex_unlock(&card_list_lock);
938 	return 0;
939 }
940 
941 /*
942  * power management
943  */
944 static bool azx_is_pm_ready(struct snd_card *card)
945 {
946 	struct azx *chip;
947 	struct hda_intel *hda;
948 
949 	if (!card)
950 		return false;
951 	chip = card->private_data;
952 	hda = container_of(chip, struct hda_intel, chip);
953 	if (chip->disabled || hda->init_failed || !chip->running)
954 		return false;
955 	return true;
956 }
957 
958 static void __azx_runtime_resume(struct azx *chip)
959 {
960 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
961 	struct hdac_bus *bus = azx_bus(chip);
962 	struct hda_codec *codec;
963 	int status;
964 
965 	display_power(chip, true);
966 	if (hda->need_i915_power)
967 		snd_hdac_i915_set_bclk(bus);
968 
969 	/* Read STATESTS before controller reset */
970 	status = azx_readw(chip, STATESTS);
971 
972 	azx_init_pci(chip);
973 	hda_intel_init_chip(chip, true);
974 
975 	/* Avoid codec resume if runtime resume is for system suspend */
976 	if (!chip->pm_prepared) {
977 		list_for_each_codec(codec, &chip->bus) {
978 			if (codec->relaxed_resume)
979 				continue;
980 
981 			if (codec->forced_resume || (status & (1 << codec->addr)))
982 				pm_request_resume(hda_codec_dev(codec));
983 		}
984 	}
985 
986 	/* power down again for link-controlled chips */
987 	if (!hda->need_i915_power)
988 		display_power(chip, false);
989 }
990 
991 #ifdef CONFIG_PM_SLEEP
992 static int azx_prepare(struct device *dev)
993 {
994 	struct snd_card *card = dev_get_drvdata(dev);
995 	struct azx *chip;
996 
997 	if (!azx_is_pm_ready(card))
998 		return 0;
999 
1000 	chip = card->private_data;
1001 	chip->pm_prepared = 1;
1002 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1003 
1004 	flush_work(&azx_bus(chip)->unsol_work);
1005 
1006 	/* HDA controller always requires different WAKEEN for runtime suspend
1007 	 * and system suspend, so don't use direct-complete here.
1008 	 */
1009 	return 0;
1010 }
1011 
1012 static void azx_complete(struct device *dev)
1013 {
1014 	struct snd_card *card = dev_get_drvdata(dev);
1015 	struct azx *chip;
1016 
1017 	if (!azx_is_pm_ready(card))
1018 		return;
1019 
1020 	chip = card->private_data;
1021 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1022 	chip->pm_prepared = 0;
1023 }
1024 
1025 static int azx_suspend(struct device *dev)
1026 {
1027 	struct snd_card *card = dev_get_drvdata(dev);
1028 	struct azx *chip;
1029 	struct hdac_bus *bus;
1030 
1031 	if (!azx_is_pm_ready(card))
1032 		return 0;
1033 
1034 	chip = card->private_data;
1035 	bus = azx_bus(chip);
1036 	azx_shutdown_chip(chip);
1037 	if (bus->irq >= 0) {
1038 		free_irq(bus->irq, chip);
1039 		bus->irq = -1;
1040 		chip->card->sync_irq = -1;
1041 	}
1042 
1043 	if (chip->msi)
1044 		pci_disable_msi(chip->pci);
1045 
1046 	trace_azx_suspend(chip);
1047 	return 0;
1048 }
1049 
1050 static int azx_resume(struct device *dev)
1051 {
1052 	struct snd_card *card = dev_get_drvdata(dev);
1053 	struct azx *chip;
1054 
1055 	if (!azx_is_pm_ready(card))
1056 		return 0;
1057 
1058 	chip = card->private_data;
1059 	if (chip->msi)
1060 		if (pci_enable_msi(chip->pci) < 0)
1061 			chip->msi = 0;
1062 	if (azx_acquire_irq(chip, 1) < 0)
1063 		return -EIO;
1064 
1065 	__azx_runtime_resume(chip);
1066 
1067 	trace_azx_resume(chip);
1068 	return 0;
1069 }
1070 
1071 /* put codec down to D3 at hibernation for Intel SKL+;
1072  * otherwise BIOS may still access the codec and screw up the driver
1073  */
1074 static int azx_freeze_noirq(struct device *dev)
1075 {
1076 	struct snd_card *card = dev_get_drvdata(dev);
1077 	struct azx *chip = card->private_data;
1078 	struct pci_dev *pci = to_pci_dev(dev);
1079 
1080 	if (!azx_is_pm_ready(card))
1081 		return 0;
1082 	if (chip->driver_type == AZX_DRIVER_SKL)
1083 		pci_set_power_state(pci, PCI_D3hot);
1084 
1085 	return 0;
1086 }
1087 
1088 static int azx_thaw_noirq(struct device *dev)
1089 {
1090 	struct snd_card *card = dev_get_drvdata(dev);
1091 	struct azx *chip = card->private_data;
1092 	struct pci_dev *pci = to_pci_dev(dev);
1093 
1094 	if (!azx_is_pm_ready(card))
1095 		return 0;
1096 	if (chip->driver_type == AZX_DRIVER_SKL)
1097 		pci_set_power_state(pci, PCI_D0);
1098 
1099 	return 0;
1100 }
1101 #endif /* CONFIG_PM_SLEEP */
1102 
1103 static int azx_runtime_suspend(struct device *dev)
1104 {
1105 	struct snd_card *card = dev_get_drvdata(dev);
1106 	struct azx *chip;
1107 
1108 	if (!azx_is_pm_ready(card))
1109 		return 0;
1110 	chip = card->private_data;
1111 
1112 	/* enable controller wake up event */
1113 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
1114 
1115 	azx_shutdown_chip(chip);
1116 	trace_azx_runtime_suspend(chip);
1117 	return 0;
1118 }
1119 
1120 static int azx_runtime_resume(struct device *dev)
1121 {
1122 	struct snd_card *card = dev_get_drvdata(dev);
1123 	struct azx *chip;
1124 
1125 	if (!azx_is_pm_ready(card))
1126 		return 0;
1127 	chip = card->private_data;
1128 	__azx_runtime_resume(chip);
1129 
1130 	/* disable controller Wake Up event*/
1131 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
1132 
1133 	trace_azx_runtime_resume(chip);
1134 	return 0;
1135 }
1136 
1137 static int azx_runtime_idle(struct device *dev)
1138 {
1139 	struct snd_card *card = dev_get_drvdata(dev);
1140 	struct azx *chip;
1141 	struct hda_intel *hda;
1142 
1143 	if (!card)
1144 		return 0;
1145 
1146 	chip = card->private_data;
1147 	hda = container_of(chip, struct hda_intel, chip);
1148 	if (chip->disabled || hda->init_failed)
1149 		return 0;
1150 
1151 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1152 	    azx_bus(chip)->codec_powered || !chip->running)
1153 		return -EBUSY;
1154 
1155 	/* ELD notification gets broken when HD-audio bus is off */
1156 	if (needs_eld_notify_link(chip))
1157 		return -EBUSY;
1158 
1159 	return 0;
1160 }
1161 
1162 static const struct dev_pm_ops azx_pm = {
1163 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1164 #ifdef CONFIG_PM_SLEEP
1165 	.prepare = azx_prepare,
1166 	.complete = azx_complete,
1167 	.freeze_noirq = azx_freeze_noirq,
1168 	.thaw_noirq = azx_thaw_noirq,
1169 #endif
1170 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1171 };
1172 
1173 #define AZX_PM_OPS	&azx_pm
1174 #else
1175 #define azx_add_card_list(chip) /* NOP */
1176 #define azx_del_card_list(chip) /* NOP */
1177 #define AZX_PM_OPS	NULL
1178 #endif /* CONFIG_PM */
1179 
1180 
1181 static int azx_probe_continue(struct azx *chip);
1182 
1183 #ifdef SUPPORT_VGA_SWITCHEROO
1184 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1185 
1186 static void azx_vs_set_state(struct pci_dev *pci,
1187 			     enum vga_switcheroo_state state)
1188 {
1189 	struct snd_card *card = pci_get_drvdata(pci);
1190 	struct azx *chip = card->private_data;
1191 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1192 	struct hda_codec *codec;
1193 	bool disabled;
1194 
1195 	wait_for_completion(&hda->probe_wait);
1196 	if (hda->init_failed)
1197 		return;
1198 
1199 	disabled = (state == VGA_SWITCHEROO_OFF);
1200 	if (chip->disabled == disabled)
1201 		return;
1202 
1203 	if (!hda->probe_continued) {
1204 		chip->disabled = disabled;
1205 		if (!disabled) {
1206 			dev_info(chip->card->dev,
1207 				 "Start delayed initialization\n");
1208 			if (azx_probe_continue(chip) < 0)
1209 				dev_err(chip->card->dev, "initialization error\n");
1210 		}
1211 	} else {
1212 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1213 			 disabled ? "Disabling" : "Enabling");
1214 		if (disabled) {
1215 			list_for_each_codec(codec, &chip->bus) {
1216 				pm_runtime_suspend(hda_codec_dev(codec));
1217 				pm_runtime_disable(hda_codec_dev(codec));
1218 			}
1219 			pm_runtime_suspend(card->dev);
1220 			pm_runtime_disable(card->dev);
1221 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1222 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1223 			 * put ourselves there */
1224 			pci->current_state = PCI_D3cold;
1225 			chip->disabled = true;
1226 			if (snd_hda_lock_devices(&chip->bus))
1227 				dev_warn(chip->card->dev,
1228 					 "Cannot lock devices!\n");
1229 		} else {
1230 			snd_hda_unlock_devices(&chip->bus);
1231 			chip->disabled = false;
1232 			pm_runtime_enable(card->dev);
1233 			list_for_each_codec(codec, &chip->bus) {
1234 				pm_runtime_enable(hda_codec_dev(codec));
1235 				pm_runtime_resume(hda_codec_dev(codec));
1236 			}
1237 		}
1238 	}
1239 }
1240 
1241 static bool azx_vs_can_switch(struct pci_dev *pci)
1242 {
1243 	struct snd_card *card = pci_get_drvdata(pci);
1244 	struct azx *chip = card->private_data;
1245 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1246 
1247 	wait_for_completion(&hda->probe_wait);
1248 	if (hda->init_failed)
1249 		return false;
1250 	if (chip->disabled || !hda->probe_continued)
1251 		return true;
1252 	if (snd_hda_lock_devices(&chip->bus))
1253 		return false;
1254 	snd_hda_unlock_devices(&chip->bus);
1255 	return true;
1256 }
1257 
1258 /*
1259  * The discrete GPU cannot power down unless the HDA controller runtime
1260  * suspends, so activate runtime PM on codecs even if power_save == 0.
1261  */
1262 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1263 {
1264 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1265 	struct hda_codec *codec;
1266 
1267 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1268 		list_for_each_codec(codec, &chip->bus)
1269 			codec->auto_runtime_pm = 1;
1270 		/* reset the power save setup */
1271 		if (chip->running)
1272 			set_default_power_save(chip);
1273 	}
1274 }
1275 
1276 static void azx_vs_gpu_bound(struct pci_dev *pci,
1277 			     enum vga_switcheroo_client_id client_id)
1278 {
1279 	struct snd_card *card = pci_get_drvdata(pci);
1280 	struct azx *chip = card->private_data;
1281 
1282 	if (client_id == VGA_SWITCHEROO_DIS)
1283 		chip->bus.keep_power = 0;
1284 	setup_vga_switcheroo_runtime_pm(chip);
1285 }
1286 
1287 static void init_vga_switcheroo(struct azx *chip)
1288 {
1289 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1290 	struct pci_dev *p = get_bound_vga(chip->pci);
1291 	struct pci_dev *parent;
1292 	if (p) {
1293 		dev_info(chip->card->dev,
1294 			 "Handle vga_switcheroo audio client\n");
1295 		hda->use_vga_switcheroo = 1;
1296 
1297 		/* cleared in either gpu_bound op or codec probe, or when its
1298 		 * upstream port has _PR3 (i.e. dGPU).
1299 		 */
1300 		parent = pci_upstream_bridge(p);
1301 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1302 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1303 		pci_dev_put(p);
1304 	}
1305 }
1306 
1307 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1308 	.set_gpu_state = azx_vs_set_state,
1309 	.can_switch = azx_vs_can_switch,
1310 	.gpu_bound = azx_vs_gpu_bound,
1311 };
1312 
1313 static int register_vga_switcheroo(struct azx *chip)
1314 {
1315 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1316 	struct pci_dev *p;
1317 	int err;
1318 
1319 	if (!hda->use_vga_switcheroo)
1320 		return 0;
1321 
1322 	p = get_bound_vga(chip->pci);
1323 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1324 	pci_dev_put(p);
1325 
1326 	if (err < 0)
1327 		return err;
1328 	hda->vga_switcheroo_registered = 1;
1329 
1330 	return 0;
1331 }
1332 #else
1333 #define init_vga_switcheroo(chip)		/* NOP */
1334 #define register_vga_switcheroo(chip)		0
1335 #define check_hdmi_disabled(pci)	false
1336 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1337 #endif /* SUPPORT_VGA_SWITCHER */
1338 
1339 /*
1340  * destructor
1341  */
1342 static void azx_free(struct azx *chip)
1343 {
1344 	struct pci_dev *pci = chip->pci;
1345 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1346 	struct hdac_bus *bus = azx_bus(chip);
1347 
1348 	if (hda->freed)
1349 		return;
1350 
1351 	if (azx_has_pm_runtime(chip) && chip->running) {
1352 		pm_runtime_get_noresume(&pci->dev);
1353 		pm_runtime_forbid(&pci->dev);
1354 		pm_runtime_dont_use_autosuspend(&pci->dev);
1355 	}
1356 
1357 	chip->running = 0;
1358 
1359 	azx_del_card_list(chip);
1360 
1361 	hda->init_failed = 1; /* to be sure */
1362 	complete_all(&hda->probe_wait);
1363 
1364 	if (use_vga_switcheroo(hda)) {
1365 		if (chip->disabled && hda->probe_continued)
1366 			snd_hda_unlock_devices(&chip->bus);
1367 		if (hda->vga_switcheroo_registered)
1368 			vga_switcheroo_unregister_client(chip->pci);
1369 	}
1370 
1371 	if (bus->chip_init) {
1372 		azx_clear_irq_pending(chip);
1373 		azx_stop_all_streams(chip);
1374 		azx_stop_chip(chip);
1375 	}
1376 
1377 	if (bus->irq >= 0)
1378 		free_irq(bus->irq, (void*)chip);
1379 
1380 	azx_free_stream_pages(chip);
1381 	azx_free_streams(chip);
1382 	snd_hdac_bus_exit(bus);
1383 
1384 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1385 	release_firmware(chip->fw);
1386 #endif
1387 	display_power(chip, false);
1388 
1389 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1390 		snd_hdac_i915_exit(bus);
1391 
1392 	hda->freed = 1;
1393 }
1394 
1395 static int azx_dev_disconnect(struct snd_device *device)
1396 {
1397 	struct azx *chip = device->device_data;
1398 	struct hdac_bus *bus = azx_bus(chip);
1399 
1400 	chip->bus.shutdown = 1;
1401 	cancel_work_sync(&bus->unsol_work);
1402 
1403 	return 0;
1404 }
1405 
1406 static int azx_dev_free(struct snd_device *device)
1407 {
1408 	azx_free(device->device_data);
1409 	return 0;
1410 }
1411 
1412 #ifdef SUPPORT_VGA_SWITCHEROO
1413 #ifdef CONFIG_ACPI
1414 /* ATPX is in the integrated GPU's namespace */
1415 static bool atpx_present(void)
1416 {
1417 	struct pci_dev *pdev = NULL;
1418 	acpi_handle dhandle, atpx_handle;
1419 	acpi_status status;
1420 
1421 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1422 		dhandle = ACPI_HANDLE(&pdev->dev);
1423 		if (dhandle) {
1424 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1425 			if (ACPI_SUCCESS(status)) {
1426 				pci_dev_put(pdev);
1427 				return true;
1428 			}
1429 		}
1430 	}
1431 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1432 		dhandle = ACPI_HANDLE(&pdev->dev);
1433 		if (dhandle) {
1434 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1435 			if (ACPI_SUCCESS(status)) {
1436 				pci_dev_put(pdev);
1437 				return true;
1438 			}
1439 		}
1440 	}
1441 	return false;
1442 }
1443 #else
1444 static bool atpx_present(void)
1445 {
1446 	return false;
1447 }
1448 #endif
1449 
1450 /*
1451  * Check of disabled HDMI controller by vga_switcheroo
1452  */
1453 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1454 {
1455 	struct pci_dev *p;
1456 
1457 	/* check only discrete GPU */
1458 	switch (pci->vendor) {
1459 	case PCI_VENDOR_ID_ATI:
1460 	case PCI_VENDOR_ID_AMD:
1461 		if (pci->devfn == 1) {
1462 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1463 							pci->bus->number, 0);
1464 			if (p) {
1465 				/* ATPX is in the integrated GPU's ACPI namespace
1466 				 * rather than the dGPU's namespace. However,
1467 				 * the dGPU is the one who is involved in
1468 				 * vgaswitcheroo.
1469 				 */
1470 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1471 				    (atpx_present() || apple_gmux_detect(NULL, NULL)))
1472 					return p;
1473 				pci_dev_put(p);
1474 			}
1475 		}
1476 		break;
1477 	case PCI_VENDOR_ID_NVIDIA:
1478 		if (pci->devfn == 1) {
1479 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1480 							pci->bus->number, 0);
1481 			if (p) {
1482 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1483 					return p;
1484 				pci_dev_put(p);
1485 			}
1486 		}
1487 		break;
1488 	}
1489 	return NULL;
1490 }
1491 
1492 static bool check_hdmi_disabled(struct pci_dev *pci)
1493 {
1494 	bool vga_inactive = false;
1495 	struct pci_dev *p = get_bound_vga(pci);
1496 
1497 	if (p) {
1498 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1499 			vga_inactive = true;
1500 		pci_dev_put(p);
1501 	}
1502 	return vga_inactive;
1503 }
1504 #endif /* SUPPORT_VGA_SWITCHEROO */
1505 
1506 /*
1507  * allow/deny-listing for position_fix
1508  */
1509 static const struct snd_pci_quirk position_fix_list[] = {
1510 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1511 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1512 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1513 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1514 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1519 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1520 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1521 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1522 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1523 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1524 	{}
1525 };
1526 
1527 static int check_position_fix(struct azx *chip, int fix)
1528 {
1529 	const struct snd_pci_quirk *q;
1530 
1531 	switch (fix) {
1532 	case POS_FIX_AUTO:
1533 	case POS_FIX_LPIB:
1534 	case POS_FIX_POSBUF:
1535 	case POS_FIX_VIACOMBO:
1536 	case POS_FIX_COMBO:
1537 	case POS_FIX_SKL:
1538 	case POS_FIX_FIFO:
1539 		return fix;
1540 	}
1541 
1542 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1543 	if (q) {
1544 		dev_info(chip->card->dev,
1545 			 "position_fix set to %d for device %04x:%04x\n",
1546 			 q->value, q->subvendor, q->subdevice);
1547 		return q->value;
1548 	}
1549 
1550 	/* Check VIA/ATI HD Audio Controller exist */
1551 	if (chip->driver_type == AZX_DRIVER_VIA) {
1552 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1553 		return POS_FIX_VIACOMBO;
1554 	}
1555 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1556 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1557 		return POS_FIX_FIFO;
1558 	}
1559 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1560 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1561 		return POS_FIX_LPIB;
1562 	}
1563 	if (chip->driver_type == AZX_DRIVER_SKL) {
1564 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1565 		return POS_FIX_SKL;
1566 	}
1567 	return POS_FIX_AUTO;
1568 }
1569 
1570 static void assign_position_fix(struct azx *chip, int fix)
1571 {
1572 	static const azx_get_pos_callback_t callbacks[] = {
1573 		[POS_FIX_AUTO] = NULL,
1574 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1575 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1576 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1577 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1578 		[POS_FIX_SKL] = azx_get_pos_posbuf,
1579 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1580 	};
1581 
1582 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1583 
1584 	/* combo mode uses LPIB only for playback */
1585 	if (fix == POS_FIX_COMBO)
1586 		chip->get_position[1] = NULL;
1587 
1588 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1589 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1590 		chip->get_delay[0] = chip->get_delay[1] =
1591 			azx_get_delay_from_lpib;
1592 	}
1593 
1594 	if (fix == POS_FIX_FIFO)
1595 		chip->get_delay[0] = chip->get_delay[1] =
1596 			azx_get_delay_from_fifo;
1597 }
1598 
1599 /*
1600  * deny-lists for probe_mask
1601  */
1602 static const struct snd_pci_quirk probe_mask_list[] = {
1603 	/* Thinkpad often breaks the controller communication when accessing
1604 	 * to the non-working (or non-existing) modem codec slot.
1605 	 */
1606 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1607 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1608 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1609 	/* broken BIOS */
1610 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1611 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1612 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1613 	/* forced codec slots */
1614 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1615 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1616 	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
1617 	/* WinFast VP200 H (Teradici) user reported broken communication */
1618 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1619 	{}
1620 };
1621 
1622 #define AZX_FORCE_CODEC_MASK	0x100
1623 
1624 static void check_probe_mask(struct azx *chip, int dev)
1625 {
1626 	const struct snd_pci_quirk *q;
1627 
1628 	chip->codec_probe_mask = probe_mask[dev];
1629 	if (chip->codec_probe_mask == -1) {
1630 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1631 		if (q) {
1632 			dev_info(chip->card->dev,
1633 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1634 				 q->value, q->subvendor, q->subdevice);
1635 			chip->codec_probe_mask = q->value;
1636 		}
1637 	}
1638 
1639 	/* check forced option */
1640 	if (chip->codec_probe_mask != -1 &&
1641 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1642 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1643 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1644 			 (int)azx_bus(chip)->codec_mask);
1645 	}
1646 }
1647 
1648 /*
1649  * allow/deny-list for enable_msi
1650  */
1651 static const struct snd_pci_quirk msi_deny_list[] = {
1652 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1653 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1654 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1655 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1656 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1657 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1658 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1659 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1660 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1661 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1662 	{}
1663 };
1664 
1665 static void check_msi(struct azx *chip)
1666 {
1667 	const struct snd_pci_quirk *q;
1668 
1669 	if (enable_msi >= 0) {
1670 		chip->msi = !!enable_msi;
1671 		return;
1672 	}
1673 	chip->msi = 1;	/* enable MSI as default */
1674 	q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
1675 	if (q) {
1676 		dev_info(chip->card->dev,
1677 			 "msi for device %04x:%04x set to %d\n",
1678 			 q->subvendor, q->subdevice, q->value);
1679 		chip->msi = q->value;
1680 		return;
1681 	}
1682 
1683 	/* NVidia chipsets seem to cause troubles with MSI */
1684 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1685 		dev_info(chip->card->dev, "Disabling MSI\n");
1686 		chip->msi = 0;
1687 	}
1688 }
1689 
1690 /* check the snoop mode availability */
1691 static void azx_check_snoop_available(struct azx *chip)
1692 {
1693 	int snoop = hda_snoop;
1694 
1695 	if (snoop >= 0) {
1696 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1697 			 snoop ? "snoop" : "non-snoop");
1698 		chip->snoop = snoop;
1699 		chip->uc_buffer = !snoop;
1700 		return;
1701 	}
1702 
1703 	snoop = true;
1704 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1705 	    chip->driver_type == AZX_DRIVER_VIA) {
1706 		/* force to non-snoop mode for a new VIA controller
1707 		 * when BIOS is set
1708 		 */
1709 		u8 val;
1710 		pci_read_config_byte(chip->pci, 0x42, &val);
1711 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1712 				      chip->pci->revision == 0x20))
1713 			snoop = false;
1714 	}
1715 
1716 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1717 		snoop = false;
1718 
1719 	chip->snoop = snoop;
1720 	if (!snoop) {
1721 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1722 		/* C-Media requires non-cached pages only for CORB/RIRB */
1723 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1724 			chip->uc_buffer = true;
1725 	}
1726 }
1727 
1728 static void azx_probe_work(struct work_struct *work)
1729 {
1730 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
1731 	azx_probe_continue(&hda->chip);
1732 }
1733 
1734 static int default_bdl_pos_adj(struct azx *chip)
1735 {
1736 	/* some exceptions: Atoms seem problematic with value 1 */
1737 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1738 		switch (chip->pci->device) {
1739 		case 0x0f04: /* Baytrail */
1740 		case 0x2284: /* Braswell */
1741 			return 32;
1742 		}
1743 	}
1744 
1745 	switch (chip->driver_type) {
1746 	case AZX_DRIVER_ICH:
1747 	case AZX_DRIVER_PCH:
1748 		return 1;
1749 	default:
1750 		return 32;
1751 	}
1752 }
1753 
1754 /*
1755  * constructor
1756  */
1757 static const struct hda_controller_ops pci_hda_ops;
1758 
1759 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1760 		      int dev, unsigned int driver_caps,
1761 		      struct azx **rchip)
1762 {
1763 	static const struct snd_device_ops ops = {
1764 		.dev_disconnect = azx_dev_disconnect,
1765 		.dev_free = azx_dev_free,
1766 	};
1767 	struct hda_intel *hda;
1768 	struct azx *chip;
1769 	int err;
1770 
1771 	*rchip = NULL;
1772 
1773 	err = pcim_enable_device(pci);
1774 	if (err < 0)
1775 		return err;
1776 
1777 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1778 	if (!hda)
1779 		return -ENOMEM;
1780 
1781 	chip = &hda->chip;
1782 	mutex_init(&chip->open_mutex);
1783 	chip->card = card;
1784 	chip->pci = pci;
1785 	chip->ops = &pci_hda_ops;
1786 	chip->driver_caps = driver_caps;
1787 	chip->driver_type = driver_caps & 0xff;
1788 	check_msi(chip);
1789 	chip->dev_index = dev;
1790 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1791 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1792 	INIT_LIST_HEAD(&chip->pcm_list);
1793 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1794 	INIT_LIST_HEAD(&hda->list);
1795 	init_vga_switcheroo(chip);
1796 	init_completion(&hda->probe_wait);
1797 
1798 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1799 
1800 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1801 		chip->fallback_to_single_cmd = 1;
1802 	else /* explicitly set to single_cmd or not */
1803 		chip->single_cmd = single_cmd;
1804 
1805 	azx_check_snoop_available(chip);
1806 
1807 	if (bdl_pos_adj[dev] < 0)
1808 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1809 	else
1810 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1811 
1812 	err = azx_bus_init(chip, model[dev]);
1813 	if (err < 0)
1814 		return err;
1815 
1816 	/* use the non-cached pages in non-snoop mode */
1817 	if (!azx_snoop(chip))
1818 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC_SG;
1819 
1820 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1821 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1822 		chip->bus.core.needs_damn_long_delay = 1;
1823 	}
1824 
1825 	check_probe_mask(chip, dev);
1826 
1827 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1828 	if (err < 0) {
1829 		dev_err(card->dev, "Error creating device [card]!\n");
1830 		azx_free(chip);
1831 		return err;
1832 	}
1833 
1834 	/* continue probing in work context as may trigger request module */
1835 	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
1836 
1837 	*rchip = chip;
1838 
1839 	return 0;
1840 }
1841 
1842 static int azx_first_init(struct azx *chip)
1843 {
1844 	int dev = chip->dev_index;
1845 	struct pci_dev *pci = chip->pci;
1846 	struct snd_card *card = chip->card;
1847 	struct hdac_bus *bus = azx_bus(chip);
1848 	int err;
1849 	unsigned short gcap;
1850 	unsigned int dma_bits = 64;
1851 
1852 #if BITS_PER_LONG != 64
1853 	/* Fix up base address on ULI M5461 */
1854 	if (chip->driver_type == AZX_DRIVER_ULI) {
1855 		u16 tmp3;
1856 		pci_read_config_word(pci, 0x40, &tmp3);
1857 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1858 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1859 	}
1860 #endif
1861 
1862 	err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");
1863 	if (err < 0)
1864 		return err;
1865 
1866 	bus->addr = pci_resource_start(pci, 0);
1867 	bus->remap_addr = pcim_iomap_table(pci)[0];
1868 
1869 	if (chip->driver_type == AZX_DRIVER_SKL)
1870 		snd_hdac_bus_parse_capabilities(bus);
1871 
1872 	/*
1873 	 * Some Intel CPUs has always running timer (ART) feature and
1874 	 * controller may have Global time sync reporting capability, so
1875 	 * check both of these before declaring synchronized time reporting
1876 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1877 	 */
1878 	chip->gts_present = false;
1879 
1880 #ifdef CONFIG_X86
1881 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1882 		chip->gts_present = true;
1883 #endif
1884 
1885 	if (chip->msi) {
1886 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1887 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1888 			pci->no_64bit_msi = true;
1889 		}
1890 		if (pci_enable_msi(pci) < 0)
1891 			chip->msi = 0;
1892 	}
1893 
1894 	pci_set_master(pci);
1895 
1896 	gcap = azx_readw(chip, GCAP);
1897 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1898 
1899 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1900 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1901 		dma_bits = 40;
1902 
1903 	/* disable SB600 64bit support for safety */
1904 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1905 		struct pci_dev *p_smbus;
1906 		dma_bits = 40;
1907 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1908 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1909 					 NULL);
1910 		if (p_smbus) {
1911 			if (p_smbus->revision < 0x30)
1912 				gcap &= ~AZX_GCAP_64OK;
1913 			pci_dev_put(p_smbus);
1914 		}
1915 	}
1916 
1917 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1918 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1919 		dma_bits = 40;
1920 
1921 	/* disable 64bit DMA address on some devices */
1922 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1923 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1924 		gcap &= ~AZX_GCAP_64OK;
1925 	}
1926 
1927 	/* disable buffer size rounding to 128-byte multiples if supported */
1928 	if (align_buffer_size >= 0)
1929 		chip->align_buffer_size = !!align_buffer_size;
1930 	else {
1931 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1932 			chip->align_buffer_size = 0;
1933 		else
1934 			chip->align_buffer_size = 1;
1935 	}
1936 
1937 	/* allow 64bit DMA address if supported by H/W */
1938 	if (!(gcap & AZX_GCAP_64OK))
1939 		dma_bits = 32;
1940 	if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
1941 		dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
1942 	dma_set_max_seg_size(&pci->dev, UINT_MAX);
1943 
1944 	/* read number of streams from GCAP register instead of using
1945 	 * hardcoded value
1946 	 */
1947 	chip->capture_streams = (gcap >> 8) & 0x0f;
1948 	chip->playback_streams = (gcap >> 12) & 0x0f;
1949 	if (!chip->playback_streams && !chip->capture_streams) {
1950 		/* gcap didn't give any info, switching to old method */
1951 
1952 		switch (chip->driver_type) {
1953 		case AZX_DRIVER_ULI:
1954 			chip->playback_streams = ULI_NUM_PLAYBACK;
1955 			chip->capture_streams = ULI_NUM_CAPTURE;
1956 			break;
1957 		case AZX_DRIVER_ATIHDMI:
1958 		case AZX_DRIVER_ATIHDMI_NS:
1959 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1960 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1961 			break;
1962 		case AZX_DRIVER_GENERIC:
1963 		default:
1964 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1965 			chip->capture_streams = ICH6_NUM_CAPTURE;
1966 			break;
1967 		}
1968 	}
1969 	chip->capture_index_offset = 0;
1970 	chip->playback_index_offset = chip->capture_streams;
1971 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1972 
1973 	/* sanity check for the SDxCTL.STRM field overflow */
1974 	if (chip->num_streams > 15 &&
1975 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1976 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1977 			 "forcing separate stream tags", chip->num_streams);
1978 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1979 	}
1980 
1981 	/* initialize streams */
1982 	err = azx_init_streams(chip);
1983 	if (err < 0)
1984 		return err;
1985 
1986 	err = azx_alloc_stream_pages(chip);
1987 	if (err < 0)
1988 		return err;
1989 
1990 	/* initialize chip */
1991 	azx_init_pci(chip);
1992 
1993 	snd_hdac_i915_set_bclk(bus);
1994 
1995 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1996 
1997 	/* codec detection */
1998 	if (!azx_bus(chip)->codec_mask) {
1999 		dev_err(card->dev, "no codecs found!\n");
2000 		/* keep running the rest for the runtime PM */
2001 	}
2002 
2003 	if (azx_acquire_irq(chip, 0) < 0)
2004 		return -EBUSY;
2005 
2006 	strcpy(card->driver, "HDA-Intel");
2007 	strscpy(card->shortname, driver_short_names[chip->driver_type],
2008 		sizeof(card->shortname));
2009 	snprintf(card->longname, sizeof(card->longname),
2010 		 "%s at 0x%lx irq %i",
2011 		 card->shortname, bus->addr, bus->irq);
2012 
2013 	return 0;
2014 }
2015 
2016 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2017 /* callback from request_firmware_nowait() */
2018 static void azx_firmware_cb(const struct firmware *fw, void *context)
2019 {
2020 	struct snd_card *card = context;
2021 	struct azx *chip = card->private_data;
2022 
2023 	if (fw)
2024 		chip->fw = fw;
2025 	else
2026 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2027 	if (!chip->disabled) {
2028 		/* continue probing */
2029 		azx_probe_continue(chip);
2030 	}
2031 }
2032 #endif
2033 
2034 static int disable_msi_reset_irq(struct azx *chip)
2035 {
2036 	struct hdac_bus *bus = azx_bus(chip);
2037 	int err;
2038 
2039 	free_irq(bus->irq, chip);
2040 	bus->irq = -1;
2041 	chip->card->sync_irq = -1;
2042 	pci_disable_msi(chip->pci);
2043 	chip->msi = 0;
2044 	err = azx_acquire_irq(chip, 1);
2045 	if (err < 0)
2046 		return err;
2047 
2048 	return 0;
2049 }
2050 
2051 /* Denylist for skipping the whole probe:
2052  * some HD-audio PCI entries are exposed without any codecs, and such devices
2053  * should be ignored from the beginning.
2054  */
2055 static const struct pci_device_id driver_denylist[] = {
2056 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2057 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2058 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2059 	{}
2060 };
2061 
2062 static const struct hda_controller_ops pci_hda_ops = {
2063 	.disable_msi_reset_irq = disable_msi_reset_irq,
2064 	.position_check = azx_position_check,
2065 };
2066 
2067 static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
2068 
2069 static int azx_probe(struct pci_dev *pci,
2070 		     const struct pci_device_id *pci_id)
2071 {
2072 	struct snd_card *card;
2073 	struct hda_intel *hda;
2074 	struct azx *chip;
2075 	bool schedule_probe;
2076 	int dev;
2077 	int err;
2078 
2079 	if (pci_match_id(driver_denylist, pci)) {
2080 		dev_info(&pci->dev, "Skipping the device on the denylist\n");
2081 		return -ENODEV;
2082 	}
2083 
2084 	dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
2085 	if (dev >= SNDRV_CARDS)
2086 		return -ENODEV;
2087 	if (!enable[dev]) {
2088 		set_bit(dev, probed_devs);
2089 		return -ENOENT;
2090 	}
2091 
2092 	/*
2093 	 * stop probe if another Intel's DSP driver should be activated
2094 	 */
2095 	if (dmic_detect) {
2096 		err = snd_intel_dsp_driver_probe(pci);
2097 		if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
2098 			dev_dbg(&pci->dev, "HDAudio driver not selected, aborting probe\n");
2099 			return -ENODEV;
2100 		}
2101 	} else {
2102 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2103 	}
2104 
2105 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2106 			   0, &card);
2107 	if (err < 0) {
2108 		dev_err(&pci->dev, "Error creating card!\n");
2109 		return err;
2110 	}
2111 
2112 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2113 	if (err < 0)
2114 		goto out_free;
2115 	card->private_data = chip;
2116 	hda = container_of(chip, struct hda_intel, chip);
2117 
2118 	pci_set_drvdata(pci, card);
2119 
2120 	err = register_vga_switcheroo(chip);
2121 	if (err < 0) {
2122 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2123 		goto out_free;
2124 	}
2125 
2126 	if (check_hdmi_disabled(pci)) {
2127 		dev_info(card->dev, "VGA controller is disabled\n");
2128 		dev_info(card->dev, "Delaying initialization\n");
2129 		chip->disabled = true;
2130 	}
2131 
2132 	schedule_probe = !chip->disabled;
2133 
2134 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2135 	if (patch[dev] && *patch[dev]) {
2136 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2137 			 patch[dev]);
2138 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2139 					      &pci->dev, GFP_KERNEL, card,
2140 					      azx_firmware_cb);
2141 		if (err < 0)
2142 			goto out_free;
2143 		schedule_probe = false; /* continued in azx_firmware_cb() */
2144 	}
2145 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2146 
2147 #ifndef CONFIG_SND_HDA_I915
2148 	if (CONTROLLER_IN_GPU(pci))
2149 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2150 #endif
2151 
2152 	if (schedule_probe)
2153 		schedule_delayed_work(&hda->probe_work, 0);
2154 
2155 	set_bit(dev, probed_devs);
2156 	if (chip->disabled)
2157 		complete_all(&hda->probe_wait);
2158 	return 0;
2159 
2160 out_free:
2161 	snd_card_free(card);
2162 	return err;
2163 }
2164 
2165 #ifdef CONFIG_PM
2166 /* On some boards setting power_save to a non 0 value leads to clicking /
2167  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2168  * figure out how to avoid these sounds, but that is not always feasible.
2169  * So we keep a list of devices where we disable powersaving as its known
2170  * to causes problems on these devices.
2171  */
2172 static const struct snd_pci_quirk power_save_denylist[] = {
2173 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2174 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2175 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2176 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2177 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2178 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2179 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2180 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2181 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2182 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2183 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2184 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2185 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2186 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2187 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2188 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2189 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2190 	/* https://bugs.launchpad.net/bugs/1821663 */
2191 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2192 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2193 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2194 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2195 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2196 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2197 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2198 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2199 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2200 	/* https://bugs.launchpad.net/bugs/1821663 */
2201 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2202 	{}
2203 };
2204 #endif /* CONFIG_PM */
2205 
2206 static void set_default_power_save(struct azx *chip)
2207 {
2208 	int val = power_save;
2209 
2210 #ifdef CONFIG_PM
2211 	if (pm_blacklist) {
2212 		const struct snd_pci_quirk *q;
2213 
2214 		q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
2215 		if (q && val) {
2216 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
2217 				 q->subvendor, q->subdevice);
2218 			val = 0;
2219 		}
2220 	}
2221 #endif /* CONFIG_PM */
2222 	snd_hda_set_power_save(&chip->bus, val * 1000);
2223 }
2224 
2225 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2226 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2227 	[AZX_DRIVER_NVIDIA] = 8,
2228 	[AZX_DRIVER_TERA] = 1,
2229 };
2230 
2231 static int azx_probe_continue(struct azx *chip)
2232 {
2233 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2234 	struct hdac_bus *bus = azx_bus(chip);
2235 	struct pci_dev *pci = chip->pci;
2236 	int dev = chip->dev_index;
2237 	int err;
2238 
2239 	if (chip->disabled || hda->init_failed)
2240 		return -EIO;
2241 	if (hda->probe_retry)
2242 		goto probe_retry;
2243 
2244 	to_hda_bus(bus)->bus_probing = 1;
2245 	hda->probe_continued = 1;
2246 
2247 	/* bind with i915 if needed */
2248 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2249 		err = snd_hdac_i915_init(bus);
2250 		if (err < 0) {
2251 			/* if the controller is bound only with HDMI/DP
2252 			 * (for HSW and BDW), we need to abort the probe;
2253 			 * for other chips, still continue probing as other
2254 			 * codecs can be on the same link.
2255 			 */
2256 			if (CONTROLLER_IN_GPU(pci)) {
2257 				dev_err(chip->card->dev,
2258 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2259 				goto out_free;
2260 			} else {
2261 				/* don't bother any longer */
2262 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2263 			}
2264 		}
2265 
2266 		/* HSW/BDW controllers need this power */
2267 		if (CONTROLLER_IN_GPU(pci))
2268 			hda->need_i915_power = true;
2269 	}
2270 
2271 	/* Request display power well for the HDA controller or codec. For
2272 	 * Haswell/Broadwell, both the display HDA controller and codec need
2273 	 * this power. For other platforms, like Baytrail/Braswell, only the
2274 	 * display codec needs the power and it can be released after probe.
2275 	 */
2276 	display_power(chip, true);
2277 
2278 	err = azx_first_init(chip);
2279 	if (err < 0)
2280 		goto out_free;
2281 
2282 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2283 	chip->beep_mode = beep_mode[dev];
2284 #endif
2285 
2286 	chip->ctl_dev_id = ctl_dev_id;
2287 
2288 	/* create codec instances */
2289 	if (bus->codec_mask) {
2290 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2291 		if (err < 0)
2292 			goto out_free;
2293 	}
2294 
2295 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2296 	if (chip->fw) {
2297 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2298 					 chip->fw->data);
2299 		if (err < 0)
2300 			goto out_free;
2301 #ifndef CONFIG_PM
2302 		release_firmware(chip->fw); /* no longer needed */
2303 		chip->fw = NULL;
2304 #endif
2305 	}
2306 #endif
2307 
2308  probe_retry:
2309 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2310 		err = azx_codec_configure(chip);
2311 		if (err) {
2312 			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
2313 			    ++hda->probe_retry < 60) {
2314 				schedule_delayed_work(&hda->probe_work,
2315 						      msecs_to_jiffies(1000));
2316 				return 0; /* keep things up */
2317 			}
2318 			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
2319 			goto out_free;
2320 		}
2321 	}
2322 
2323 	err = snd_card_register(chip->card);
2324 	if (err < 0)
2325 		goto out_free;
2326 
2327 	setup_vga_switcheroo_runtime_pm(chip);
2328 
2329 	chip->running = 1;
2330 	azx_add_card_list(chip);
2331 
2332 	set_default_power_save(chip);
2333 
2334 	if (azx_has_pm_runtime(chip)) {
2335 		pm_runtime_use_autosuspend(&pci->dev);
2336 		pm_runtime_allow(&pci->dev);
2337 		pm_runtime_put_autosuspend(&pci->dev);
2338 	}
2339 
2340 out_free:
2341 	if (err < 0) {
2342 		pci_set_drvdata(pci, NULL);
2343 		snd_card_free(chip->card);
2344 		return err;
2345 	}
2346 
2347 	if (!hda->need_i915_power)
2348 		display_power(chip, false);
2349 	complete_all(&hda->probe_wait);
2350 	to_hda_bus(bus)->bus_probing = 0;
2351 	hda->probe_retry = 0;
2352 	return 0;
2353 }
2354 
2355 static void azx_remove(struct pci_dev *pci)
2356 {
2357 	struct snd_card *card = pci_get_drvdata(pci);
2358 	struct azx *chip;
2359 	struct hda_intel *hda;
2360 
2361 	if (card) {
2362 		/* cancel the pending probing work */
2363 		chip = card->private_data;
2364 		hda = container_of(chip, struct hda_intel, chip);
2365 		/* FIXME: below is an ugly workaround.
2366 		 * Both device_release_driver() and driver_probe_device()
2367 		 * take *both* the device's and its parent's lock before
2368 		 * calling the remove() and probe() callbacks.  The codec
2369 		 * probe takes the locks of both the codec itself and its
2370 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2371 		 * the PCI controller is unbound, it takes its lock, too
2372 		 * ==> ouch, a deadlock!
2373 		 * As a workaround, we unlock temporarily here the controller
2374 		 * device during cancel_work_sync() call.
2375 		 */
2376 		device_unlock(&pci->dev);
2377 		cancel_delayed_work_sync(&hda->probe_work);
2378 		device_lock(&pci->dev);
2379 
2380 		clear_bit(chip->dev_index, probed_devs);
2381 		pci_set_drvdata(pci, NULL);
2382 		snd_card_free(card);
2383 	}
2384 }
2385 
2386 static void azx_shutdown(struct pci_dev *pci)
2387 {
2388 	struct snd_card *card = pci_get_drvdata(pci);
2389 	struct azx *chip;
2390 
2391 	if (!card)
2392 		return;
2393 	chip = card->private_data;
2394 	if (chip && chip->running)
2395 		__azx_shutdown_chip(chip, true);
2396 }
2397 
2398 /* PCI IDs */
2399 static const struct pci_device_id azx_ids[] = {
2400 	/* CPT */
2401 	{ PCI_DEVICE(0x8086, 0x1c20),
2402 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2403 	/* PBG */
2404 	{ PCI_DEVICE(0x8086, 0x1d20),
2405 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2406 	/* Panther Point */
2407 	{ PCI_DEVICE(0x8086, 0x1e20),
2408 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2409 	/* Lynx Point */
2410 	{ PCI_DEVICE(0x8086, 0x8c20),
2411 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2412 	/* 9 Series */
2413 	{ PCI_DEVICE(0x8086, 0x8ca0),
2414 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2415 	/* Wellsburg */
2416 	{ PCI_DEVICE(0x8086, 0x8d20),
2417 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2418 	{ PCI_DEVICE(0x8086, 0x8d21),
2419 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2420 	/* Lewisburg */
2421 	{ PCI_DEVICE(0x8086, 0xa1f0),
2422 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2423 	{ PCI_DEVICE(0x8086, 0xa270),
2424 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2425 	/* Lynx Point-LP */
2426 	{ PCI_DEVICE(0x8086, 0x9c20),
2427 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2428 	/* Lynx Point-LP */
2429 	{ PCI_DEVICE(0x8086, 0x9c21),
2430 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2431 	/* Wildcat Point-LP */
2432 	{ PCI_DEVICE(0x8086, 0x9ca0),
2433 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2434 	/* Sunrise Point */
2435 	{ PCI_DEVICE(0x8086, 0xa170),
2436 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2437 	/* Sunrise Point-LP */
2438 	{ PCI_DEVICE(0x8086, 0x9d70),
2439 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2440 	/* Kabylake */
2441 	{ PCI_DEVICE(0x8086, 0xa171),
2442 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2443 	/* Kabylake-LP */
2444 	{ PCI_DEVICE(0x8086, 0x9d71),
2445 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2446 	/* Kabylake-H */
2447 	{ PCI_DEVICE(0x8086, 0xa2f0),
2448 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2449 	/* Coffelake */
2450 	{ PCI_DEVICE(0x8086, 0xa348),
2451 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2452 	/* Cannonlake */
2453 	{ PCI_DEVICE(0x8086, 0x9dc8),
2454 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2455 	/* CometLake-LP */
2456 	{ PCI_DEVICE(0x8086, 0x02C8),
2457 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2458 	/* CometLake-H */
2459 	{ PCI_DEVICE(0x8086, 0x06C8),
2460 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2461 	{ PCI_DEVICE(0x8086, 0xf1c8),
2462 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2463 	/* CometLake-S */
2464 	{ PCI_DEVICE(0x8086, 0xa3f0),
2465 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2466 	/* CometLake-R */
2467 	{ PCI_DEVICE(0x8086, 0xf0c8),
2468 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2469 	/* Icelake */
2470 	{ PCI_DEVICE(0x8086, 0x34c8),
2471 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2472 	/* Icelake-H */
2473 	{ PCI_DEVICE(0x8086, 0x3dc8),
2474 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2475 	/* Jasperlake */
2476 	{ PCI_DEVICE(0x8086, 0x38c8),
2477 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2478 	{ PCI_DEVICE(0x8086, 0x4dc8),
2479 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2480 	/* Tigerlake */
2481 	{ PCI_DEVICE(0x8086, 0xa0c8),
2482 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2483 	/* Tigerlake-H */
2484 	{ PCI_DEVICE(0x8086, 0x43c8),
2485 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2486 	/* DG1 */
2487 	{ PCI_DEVICE(0x8086, 0x490d),
2488 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2489 	/* DG2 */
2490 	{ PCI_DEVICE(0x8086, 0x4f90),
2491 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2492 	{ PCI_DEVICE(0x8086, 0x4f91),
2493 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2494 	{ PCI_DEVICE(0x8086, 0x4f92),
2495 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2496 	/* Alderlake-S */
2497 	{ PCI_DEVICE(0x8086, 0x7ad0),
2498 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2499 	/* Alderlake-P */
2500 	{ PCI_DEVICE(0x8086, 0x51c8),
2501 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2502 	{ PCI_DEVICE(0x8086, 0x51c9),
2503 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2504 	{ PCI_DEVICE(0x8086, 0x51cd),
2505 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2506 	/* Alderlake-M */
2507 	{ PCI_DEVICE(0x8086, 0x51cc),
2508 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2509 	/* Alderlake-N */
2510 	{ PCI_DEVICE(0x8086, 0x54c8),
2511 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2512 	/* Elkhart Lake */
2513 	{ PCI_DEVICE(0x8086, 0x4b55),
2514 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2515 	{ PCI_DEVICE(0x8086, 0x4b58),
2516 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2517 	/* Raptor Lake */
2518 	{ PCI_DEVICE(0x8086, 0x7a50),
2519 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2520 	{ PCI_DEVICE(0x8086, 0x51ca),
2521 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2522 	{ PCI_DEVICE(0x8086, 0x51cb),
2523 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2524 	{ PCI_DEVICE(0x8086, 0x51ce),
2525 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2526 	{ PCI_DEVICE(0x8086, 0x51cf),
2527 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2528 	/* Meteorlake-P */
2529 	{ PCI_DEVICE(0x8086, 0x7e28),
2530 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2531 	/* Broxton-P(Apollolake) */
2532 	{ PCI_DEVICE(0x8086, 0x5a98),
2533 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2534 	/* Broxton-T */
2535 	{ PCI_DEVICE(0x8086, 0x1a98),
2536 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2537 	/* Gemini-Lake */
2538 	{ PCI_DEVICE(0x8086, 0x3198),
2539 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2540 	/* Haswell */
2541 	{ PCI_DEVICE(0x8086, 0x0a0c),
2542 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2543 	{ PCI_DEVICE(0x8086, 0x0c0c),
2544 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2545 	{ PCI_DEVICE(0x8086, 0x0d0c),
2546 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2547 	/* Broadwell */
2548 	{ PCI_DEVICE(0x8086, 0x160c),
2549 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2550 	/* 5 Series/3400 */
2551 	{ PCI_DEVICE(0x8086, 0x3b56),
2552 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2553 	{ PCI_DEVICE(0x8086, 0x3b57),
2554 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2555 	/* Poulsbo */
2556 	{ PCI_DEVICE(0x8086, 0x811b),
2557 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
2558 	  AZX_DCAPS_POSFIX_LPIB },
2559 	/* Oaktrail */
2560 	{ PCI_DEVICE(0x8086, 0x080a),
2561 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2562 	/* BayTrail */
2563 	{ PCI_DEVICE(0x8086, 0x0f04),
2564 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2565 	/* Braswell */
2566 	{ PCI_DEVICE(0x8086, 0x2284),
2567 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2568 	/* ICH6 */
2569 	{ PCI_DEVICE(0x8086, 0x2668),
2570 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2571 	/* ICH7 */
2572 	{ PCI_DEVICE(0x8086, 0x27d8),
2573 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2574 	/* ESB2 */
2575 	{ PCI_DEVICE(0x8086, 0x269a),
2576 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2577 	/* ICH8 */
2578 	{ PCI_DEVICE(0x8086, 0x284b),
2579 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2580 	/* ICH9 */
2581 	{ PCI_DEVICE(0x8086, 0x293e),
2582 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2583 	/* ICH9 */
2584 	{ PCI_DEVICE(0x8086, 0x293f),
2585 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2586 	/* ICH10 */
2587 	{ PCI_DEVICE(0x8086, 0x3a3e),
2588 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2589 	/* ICH10 */
2590 	{ PCI_DEVICE(0x8086, 0x3a6e),
2591 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2592 	/* Generic Intel */
2593 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2594 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2595 	  .class_mask = 0xffffff,
2596 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2597 	/* ATI SB 450/600/700/800/900 */
2598 	{ PCI_DEVICE(0x1002, 0x437b),
2599 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2600 	{ PCI_DEVICE(0x1002, 0x4383),
2601 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2602 	/* AMD Hudson */
2603 	{ PCI_DEVICE(0x1022, 0x780d),
2604 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2605 	/* AMD, X370 & co */
2606 	{ PCI_DEVICE(0x1022, 0x1457),
2607 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2608 	/* AMD, X570 & co */
2609 	{ PCI_DEVICE(0x1022, 0x1487),
2610 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2611 	/* AMD Stoney */
2612 	{ PCI_DEVICE(0x1022, 0x157a),
2613 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2614 			 AZX_DCAPS_PM_RUNTIME },
2615 	/* AMD Raven */
2616 	{ PCI_DEVICE(0x1022, 0x15e3),
2617 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2618 	/* ATI HDMI */
2619 	{ PCI_DEVICE(0x1002, 0x0002),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2621 	  AZX_DCAPS_PM_RUNTIME },
2622 	{ PCI_DEVICE(0x1002, 0x1308),
2623 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2624 	{ PCI_DEVICE(0x1002, 0x157a),
2625 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2626 	{ PCI_DEVICE(0x1002, 0x15b3),
2627 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2628 	{ PCI_DEVICE(0x1002, 0x793b),
2629 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2630 	{ PCI_DEVICE(0x1002, 0x7919),
2631 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2632 	{ PCI_DEVICE(0x1002, 0x960f),
2633 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2634 	{ PCI_DEVICE(0x1002, 0x970f),
2635 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2636 	{ PCI_DEVICE(0x1002, 0x9840),
2637 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2638 	{ PCI_DEVICE(0x1002, 0xaa00),
2639 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2640 	{ PCI_DEVICE(0x1002, 0xaa08),
2641 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2642 	{ PCI_DEVICE(0x1002, 0xaa10),
2643 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2644 	{ PCI_DEVICE(0x1002, 0xaa18),
2645 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2646 	{ PCI_DEVICE(0x1002, 0xaa20),
2647 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2648 	{ PCI_DEVICE(0x1002, 0xaa28),
2649 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2650 	{ PCI_DEVICE(0x1002, 0xaa30),
2651 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2652 	{ PCI_DEVICE(0x1002, 0xaa38),
2653 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2654 	{ PCI_DEVICE(0x1002, 0xaa40),
2655 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2656 	{ PCI_DEVICE(0x1002, 0xaa48),
2657 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2658 	{ PCI_DEVICE(0x1002, 0xaa50),
2659 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2660 	{ PCI_DEVICE(0x1002, 0xaa58),
2661 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2662 	{ PCI_DEVICE(0x1002, 0xaa60),
2663 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2664 	{ PCI_DEVICE(0x1002, 0xaa68),
2665 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2666 	{ PCI_DEVICE(0x1002, 0xaa80),
2667 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2668 	{ PCI_DEVICE(0x1002, 0xaa88),
2669 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2670 	{ PCI_DEVICE(0x1002, 0xaa90),
2671 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2672 	{ PCI_DEVICE(0x1002, 0xaa98),
2673 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2674 	{ PCI_DEVICE(0x1002, 0x9902),
2675 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2676 	{ PCI_DEVICE(0x1002, 0xaaa0),
2677 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2678 	{ PCI_DEVICE(0x1002, 0xaaa8),
2679 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2680 	{ PCI_DEVICE(0x1002, 0xaab0),
2681 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2682 	{ PCI_DEVICE(0x1002, 0xaac0),
2683 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2684 	  AZX_DCAPS_PM_RUNTIME },
2685 	{ PCI_DEVICE(0x1002, 0xaac8),
2686 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2687 	  AZX_DCAPS_PM_RUNTIME },
2688 	{ PCI_DEVICE(0x1002, 0xaad8),
2689 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2690 	  AZX_DCAPS_PM_RUNTIME },
2691 	{ PCI_DEVICE(0x1002, 0xaae0),
2692 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2693 	  AZX_DCAPS_PM_RUNTIME },
2694 	{ PCI_DEVICE(0x1002, 0xaae8),
2695 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2696 	  AZX_DCAPS_PM_RUNTIME },
2697 	{ PCI_DEVICE(0x1002, 0xaaf0),
2698 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2699 	  AZX_DCAPS_PM_RUNTIME },
2700 	{ PCI_DEVICE(0x1002, 0xaaf8),
2701 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2702 	  AZX_DCAPS_PM_RUNTIME },
2703 	{ PCI_DEVICE(0x1002, 0xab00),
2704 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2705 	  AZX_DCAPS_PM_RUNTIME },
2706 	{ PCI_DEVICE(0x1002, 0xab08),
2707 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2708 	  AZX_DCAPS_PM_RUNTIME },
2709 	{ PCI_DEVICE(0x1002, 0xab10),
2710 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2711 	  AZX_DCAPS_PM_RUNTIME },
2712 	{ PCI_DEVICE(0x1002, 0xab18),
2713 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2714 	  AZX_DCAPS_PM_RUNTIME },
2715 	{ PCI_DEVICE(0x1002, 0xab20),
2716 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2717 	  AZX_DCAPS_PM_RUNTIME },
2718 	{ PCI_DEVICE(0x1002, 0xab28),
2719 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2720 	  AZX_DCAPS_PM_RUNTIME },
2721 	{ PCI_DEVICE(0x1002, 0xab30),
2722 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2723 	  AZX_DCAPS_PM_RUNTIME },
2724 	{ PCI_DEVICE(0x1002, 0xab38),
2725 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2726 	  AZX_DCAPS_PM_RUNTIME },
2727 	/* VIA VT8251/VT8237A */
2728 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2729 	/* VIA GFX VT7122/VX900 */
2730 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2731 	/* VIA GFX VT6122/VX11 */
2732 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2733 	/* SIS966 */
2734 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2735 	/* ULI M5461 */
2736 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2737 	/* NVIDIA MCP */
2738 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2739 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2740 	  .class_mask = 0xffffff,
2741 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2742 	/* Teradici */
2743 	{ PCI_DEVICE(0x6549, 0x1200),
2744 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2745 	{ PCI_DEVICE(0x6549, 0x2200),
2746 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2747 	/* Creative X-Fi (CA0110-IBG) */
2748 	/* CTHDA chips */
2749 	{ PCI_DEVICE(0x1102, 0x0010),
2750 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2751 	{ PCI_DEVICE(0x1102, 0x0012),
2752 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2753 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2754 	/* the following entry conflicts with snd-ctxfi driver,
2755 	 * as ctxfi driver mutates from HD-audio to native mode with
2756 	 * a special command sequence.
2757 	 */
2758 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2759 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2760 	  .class_mask = 0xffffff,
2761 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2762 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2763 #else
2764 	/* this entry seems still valid -- i.e. without emu20kx chip */
2765 	{ PCI_DEVICE(0x1102, 0x0009),
2766 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2767 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2768 #endif
2769 	/* CM8888 */
2770 	{ PCI_DEVICE(0x13f6, 0x5011),
2771 	  .driver_data = AZX_DRIVER_CMEDIA |
2772 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2773 	/* Vortex86MX */
2774 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2775 	/* VMware HDAudio */
2776 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2777 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2778 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2779 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2780 	  .class_mask = 0xffffff,
2781 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2782 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2783 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2784 	  .class_mask = 0xffffff,
2785 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2786 	/* Zhaoxin */
2787 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2788 	{ 0, }
2789 };
2790 MODULE_DEVICE_TABLE(pci, azx_ids);
2791 
2792 /* pci_driver definition */
2793 static struct pci_driver azx_driver = {
2794 	.name = KBUILD_MODNAME,
2795 	.id_table = azx_ids,
2796 	.probe = azx_probe,
2797 	.remove = azx_remove,
2798 	.shutdown = azx_shutdown,
2799 	.driver = {
2800 		.pm = AZX_PM_OPS,
2801 	},
2802 };
2803 
2804 module_pci_driver(azx_driver);
2805