Initial import

1 files changed, 2191 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
new file mode 100644
index 000000000..c403dd10d
--- /dev/null
+++ b/sound/pci/hda/hda_intel.c
@@ -0,0 +1,2191 @@
+/*
+ *
+ *  hda_intel.c - Implementation of primary alsa driver code base
+ *                for Intel HD Audio.
+ *
+ *  Copyright(c) 2004 Intel Corporation. All rights reserved.
+ *
+ *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
+ *                     PeiSen Hou <pshou@realtek.com.tw>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the Free
+ *  Software Foundation; either version 2 of the License, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ *  more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with
+ *  this program; if not, write to the Free Software Foundation, Inc., 59
+ *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ *  CONTACTS:
+ *
+ *  Matt Jared		matt.jared@intel.com
+ *  Andy Kopp		andy.kopp@intel.com
+ *  Dan Kogan		dan.d.kogan@intel.com
+ *
+ *  CHANGES:
+ *
+ *  2004.12.01	Major rewrite by tiwai, merged the work of pshou
+ * 
+ */
+
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/mutex.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <linux/clocksource.h>
+#include <linux/time.h>
+#include <linux/completion.h>
+
+#ifdef CONFIG_X86
+/* for snoop control */
+#include <asm/pgtable.h>
+#include <asm/cacheflush.h>
+#endif
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <linux/vgaarb.h>
+#include <linux/vga_switcheroo.h>
+#include <linux/firmware.h>
+#include "hda_codec.h"
+#include "hda_controller.h"
+#include "hda_intel.h"
+
+/* position fix mode */
+enum {
+	POS_FIX_AUTO,
+	POS_FIX_LPIB,
+	POS_FIX_POSBUF,
+	POS_FIX_VIACOMBO,
+	POS_FIX_COMBO,
+};
+
+/* Defines for ATI HD Audio support in SB450 south bridge */
+#define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
+#define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
+
+/* Defines for Nvidia HDA support */
+#define NVIDIA_HDA_TRANSREG_ADDR      0x4e
+#define NVIDIA_HDA_ENABLE_COHBITS     0x0f
+#define NVIDIA_HDA_ISTRM_COH          0x4d
+#define NVIDIA_HDA_OSTRM_COH          0x4c
+#define NVIDIA_HDA_ENABLE_COHBIT      0x01
+
+/* Defines for Intel SCH HDA snoop control */
+#define INTEL_SCH_HDA_DEVC      0x78
+#define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
+
+/* Define IN stream 0 FIFO size offset in VIA controller */
+#define VIA_IN_STREAM0_FIFO_SIZE_OFFSET	0x90
+/* Define VIA HD Audio Device ID*/
+#define VIA_HDAC_DEVICE_ID		0x3288
+
+/* max number of SDs */
+/* ICH, ATI and VIA have 4 playback and 4 capture */
+#define ICH6_NUM_CAPTURE	4
+#define ICH6_NUM_PLAYBACK	4
+
+/* ULI has 6 playback and 5 capture */
+#define ULI_NUM_CAPTURE		5
+#define ULI_NUM_PLAYBACK	6
+
+/* ATI HDMI may have up to 8 playbacks and 0 capture */
+#define ATIHDMI_NUM_CAPTURE	0
+#define ATIHDMI_NUM_PLAYBACK	8
+
+/* TERA has 4 playback and 3 capture */
+#define TERA_NUM_CAPTURE	3
+#define TERA_NUM_PLAYBACK	4
+
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+static char *model[SNDRV_CARDS];
+static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
+static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
+static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
+static int probe_only[SNDRV_CARDS];
+static int jackpoll_ms[SNDRV_CARDS];
+static bool single_cmd;
+static int enable_msi = -1;
+#ifdef CONFIG_SND_HDA_PATCH_LOADER
+static char *patch[SNDRV_CARDS];
+#endif
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
+					CONFIG_SND_HDA_INPUT_BEEP_MODE};
+#endif
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
+module_param_array(model, charp, NULL, 0444);
+MODULE_PARM_DESC(model, "Use the given board model.");
+module_param_array(position_fix, int, NULL, 0444);
+MODULE_PARM_DESC(position_fix, "DMA pointer read method."
+		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
+module_param_array(bdl_pos_adj, int, NULL, 0644);
+MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
+module_param_array(probe_mask, int, NULL, 0444);
+MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
+module_param_array(probe_only, int, NULL, 0444);
+MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
+module_param_array(jackpoll_ms, int, NULL, 0444);
+MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
+module_param(single_cmd, bool, 0444);
+MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
+		 "(for debugging only).");
+module_param(enable_msi, bint, 0444);
+MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
+#ifdef CONFIG_SND_HDA_PATCH_LOADER
+module_param_array(patch, charp, NULL, 0444);
+MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
+#endif
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+module_param_array(beep_mode, bool, NULL, 0444);
+MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
+			    "(0=off, 1=on) (default=1).");
+#endif
+
+#ifdef CONFIG_PM
+static int param_set_xint(const char *val, const struct kernel_param *kp);
+static struct kernel_param_ops param_ops_xint = {
+	.set = param_set_xint,
+	.get = param_get_int,
+};
+#define param_check_xint param_check_int
+
+static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
+module_param(power_save, xint, 0644);
+MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
+		 "(in second, 0 = disable).");
+
+/* reset the HD-audio controller in power save mode.
+ * this may give more power-saving, but will take longer time to
+ * wake up.
+ */
+static bool power_save_controller = 1;
+module_param(power_save_controller, bool, 0644);
+MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
+#else
+#define power_save	0
+#endif /* CONFIG_PM */
+
+static int align_buffer_size = -1;
+module_param(align_buffer_size, bint, 0644);
+MODULE_PARM_DESC(align_buffer_size,
+		"Force buffer and period sizes to be multiple of 128 bytes.");
+
+#ifdef CONFIG_X86
+static int hda_snoop = -1;
+module_param_named(snoop, hda_snoop, bint, 0444);
+MODULE_PARM_DESC(snoop, "Enable/disable snooping");
+#else
+#define hda_snoop		true
+#endif
+
+
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
+			 "{Intel, ICH6M},"
+			 "{Intel, ICH7},"
+			 "{Intel, ESB2},"
+			 "{Intel, ICH8},"
+			 "{Intel, ICH9},"
+			 "{Intel, ICH10},"
+			 "{Intel, PCH},"
+			 "{Intel, CPT},"
+			 "{Intel, PPT},"
+			 "{Intel, LPT},"
+			 "{Intel, LPT_LP},"
+			 "{Intel, WPT_LP},"
+			 "{Intel, SPT},"
+			 "{Intel, SPT_LP},"
+			 "{Intel, HPT},"
+			 "{Intel, PBG},"
+			 "{Intel, SCH},"
+			 "{ATI, SB450},"
+			 "{ATI, SB600},"
+			 "{ATI, RS600},"
+			 "{ATI, RS690},"
+			 "{ATI, RS780},"
+			 "{ATI, R600},"
+			 "{ATI, RV630},"
+			 "{ATI, RV610},"
+			 "{ATI, RV670},"
+			 "{ATI, RV635},"
+			 "{ATI, RV620},"
+			 "{ATI, RV770},"
+			 "{VIA, VT8251},"
+			 "{VIA, VT8237A},"
+			 "{SiS, SIS966},"
+			 "{ULI, M5461}}");
+MODULE_DESCRIPTION("Intel HDA driver");
+
+#if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
+#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
+#define SUPPORT_VGA_SWITCHEROO
+#endif
+#endif
+
+
+/*
+ */
+
+/* driver types */
+enum {
+	AZX_DRIVER_ICH,
+	AZX_DRIVER_PCH,
+	AZX_DRIVER_SCH,
+	AZX_DRIVER_HDMI,
+	AZX_DRIVER_ATI,
+	AZX_DRIVER_ATIHDMI,
+	AZX_DRIVER_ATIHDMI_NS,
+	AZX_DRIVER_VIA,
+	AZX_DRIVER_SIS,
+	AZX_DRIVER_ULI,
+	AZX_DRIVER_NVIDIA,
+	AZX_DRIVER_TERA,
+	AZX_DRIVER_CTX,
+	AZX_DRIVER_CTHDA,
+	AZX_DRIVER_CMEDIA,
+	AZX_DRIVER_GENERIC,
+	AZX_NUM_DRIVERS, /* keep this as last entry */
+};
+
+#define azx_get_snoop_type(chip) \
+	(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
+#define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
+
+/* quirks for old Intel chipsets */
+#define AZX_DCAPS_INTEL_ICH \
+	(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
+
+/* quirks for Intel PCH */
+#define AZX_DCAPS_INTEL_PCH_NOPM \
+	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
+	 AZX_DCAPS_REVERSE_ASSIGN | AZX_DCAPS_SNOOP_TYPE(SCH))
+
+#define AZX_DCAPS_INTEL_PCH \
+	(AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_PM_RUNTIME)
+
+#define AZX_DCAPS_INTEL_HASWELL \
+	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
+	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
+	 AZX_DCAPS_SNOOP_TYPE(SCH))
+
+/* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
+#define AZX_DCAPS_INTEL_BROADWELL \
+	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
+	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
+	 AZX_DCAPS_SNOOP_TYPE(SCH))
+
+#define AZX_DCAPS_INTEL_BAYTRAIL \
+	(AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_I915_POWERWELL)
+
+#define AZX_DCAPS_INTEL_BRASWELL \
+	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_I915_POWERWELL)
+
+#define AZX_DCAPS_INTEL_SKYLAKE \
+	(AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
+	 AZX_DCAPS_I915_POWERWELL)
+
+/* quirks for ATI SB / AMD Hudson */
+#define AZX_DCAPS_PRESET_ATI_SB \
+	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
+	 AZX_DCAPS_SNOOP_TYPE(ATI))
+
+/* quirks for ATI/AMD HDMI */
+#define AZX_DCAPS_PRESET_ATI_HDMI \
+	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
+	 AZX_DCAPS_NO_MSI64)
+
+/* quirks for ATI HDMI with snoop off */
+#define AZX_DCAPS_PRESET_ATI_HDMI_NS \
+	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
+
+/* quirks for Nvidia */
+#define AZX_DCAPS_PRESET_NVIDIA \
+	(AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI | /*AZX_DCAPS_ALIGN_BUFSIZE |*/ \
+	 AZX_DCAPS_NO_64BIT | AZX_DCAPS_CORBRP_SELF_CLEAR |\
+	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
+
+#define AZX_DCAPS_PRESET_CTHDA \
+	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
+	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
+
+/*
+ * VGA-switcher support
+ */
+#ifdef SUPPORT_VGA_SWITCHEROO
+#define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
+#else
+#define use_vga_switcheroo(chip)	0
+#endif
+
+#define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
+					((pci)->device == 0x0c0c) || \
+					((pci)->device == 0x0d0c) || \
+					((pci)->device == 0x160c))
+
+static char *driver_short_names[] = {
+	[AZX_DRIVER_ICH] = "HDA Intel",
+	[AZX_DRIVER_PCH] = "HDA Intel PCH",
+	[AZX_DRIVER_SCH] = "HDA Intel MID",
+	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
+	[AZX_DRIVER_ATI] = "HDA ATI SB",
+	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
+	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
+	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
+	[AZX_DRIVER_SIS] = "HDA SIS966",
+	[AZX_DRIVER_ULI] = "HDA ULI M5461",
+	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
+	[AZX_DRIVER_TERA] = "HDA Teradici", 
+	[AZX_DRIVER_CTX] = "HDA Creative", 
+	[AZX_DRIVER_CTHDA] = "HDA Creative",
+	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
+	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
+};
+
+#ifdef CONFIG_X86
+static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
+{
+	int pages;
+
+	if (azx_snoop(chip))
+		return;
+	if (!dmab || !dmab->area || !dmab->bytes)
+		return;
+
+#ifdef CONFIG_SND_DMA_SGBUF
+	if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG) {
+		struct snd_sg_buf *sgbuf = dmab->private_data;
+		if (chip->driver_type == AZX_DRIVER_CMEDIA)
+			return; /* deal with only CORB/RIRB buffers */
+		if (on)
+			set_pages_array_wc(sgbuf->page_table, sgbuf->pages);
+		else
+			set_pages_array_wb(sgbuf->page_table, sgbuf->pages);
+		return;
+	}
+#endif
+
+	pages = (dmab->bytes + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	if (on)
+		set_memory_wc((unsigned long)dmab->area, pages);
+	else
+		set_memory_wb((unsigned long)dmab->area, pages);
+}
+
+static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
+				 bool on)
+{
+	__mark_pages_wc(chip, buf, on);
+}
+static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
+				   struct snd_pcm_substream *substream, bool on)
+{
+	if (azx_dev->wc_marked != on) {
+		__mark_pages_wc(chip, snd_pcm_get_dma_buf(substream), on);
+		azx_dev->wc_marked = on;
+	}
+}
+#else
+/* NOP for other archs */
+static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
+				 bool on)
+{
+}
+static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
+				   struct snd_pcm_substream *substream, bool on)
+{
+}
+#endif
+
+static int azx_acquire_irq(struct azx *chip, int do_disconnect);
+
+/*
+ * initialize the PCI registers
+ */
+/* update bits in a PCI register byte */
+static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
+			    unsigned char mask, unsigned char val)
+{
+	unsigned char data;
+
+	pci_read_config_byte(pci, reg, &data);
+	data &= ~mask;
+	data |= (val & mask);
+	pci_write_config_byte(pci, reg, data);
+}
+
+static void azx_init_pci(struct azx *chip)
+{
+	int snoop_type = azx_get_snoop_type(chip);
+
+	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
+	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
+	 * Ensuring these bits are 0 clears playback static on some HD Audio
+	 * codecs.
+	 * The PCI register TCSEL is defined in the Intel manuals.
+	 */
+	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
+		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
+		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
+	}
+
+	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
+	 * we need to enable snoop.
+	 */
+	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
+		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
+			azx_snoop(chip));
+		update_pci_byte(chip->pci,
+				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
+				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
+	}
+
+	/* For NVIDIA HDA, enable snoop */
+	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
+		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
+			azx_snoop(chip));
+		update_pci_byte(chip->pci,
+				NVIDIA_HDA_TRANSREG_ADDR,
+				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
+		update_pci_byte(chip->pci,
+				NVIDIA_HDA_ISTRM_COH,
+				0x01, NVIDIA_HDA_ENABLE_COHBIT);
+		update_pci_byte(chip->pci,
+				NVIDIA_HDA_OSTRM_COH,
+				0x01, NVIDIA_HDA_ENABLE_COHBIT);
+	}
+
+	/* Enable SCH/PCH snoop if needed */
+	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
+		unsigned short snoop;
+		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
+		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
+		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
+			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
+			if (!azx_snoop(chip))
+				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
+			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
+			pci_read_config_word(chip->pci,
+				INTEL_SCH_HDA_DEVC, &snoop);
+		}
+		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
+			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
+			"Disabled" : "Enabled");
+        }
+}
+
+/* calculate runtime delay from LPIB */
+static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
+				   unsigned int pos)
+{
+	struct snd_pcm_substream *substream = azx_dev->substream;
+	int stream = substream->stream;
+	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
+	int delay;
+
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+		delay = pos - lpib_pos;
+	else
+		delay = lpib_pos - pos;
+	if (delay < 0) {
+		if (delay >= azx_dev->delay_negative_threshold)
+			delay = 0;
+		else
+			delay += azx_dev->bufsize;
+	}
+
+	if (delay >= azx_dev->period_bytes) {
+		dev_info(chip->card->dev,
+			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
+			 delay, azx_dev->period_bytes);
+		delay = 0;
+		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
+		chip->get_delay[stream] = NULL;
+	}
+
+	return bytes_to_frames(substream->runtime, delay);
+}
+
+static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
+
+/* called from IRQ */
+static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
+{
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+	int ok;
+
+	ok = azx_position_ok(chip, azx_dev);
+	if (ok == 1) {
+		azx_dev->irq_pending = 0;
+		return ok;
+	} else if (ok == 0) {
+		/* bogus IRQ, process it later */
+		azx_dev->irq_pending = 1;
+		schedule_work(&hda->irq_pending_work);
+	}
+	return 0;
+}
+
+/*
+ * Check whether the current DMA position is acceptable for updating
+ * periods.  Returns non-zero if it's OK.
+ *
+ * Many HD-audio controllers appear pretty inaccurate about
+ * the update-IRQ timing.  The IRQ is issued before actually the
+ * data is processed.  So, we need to process it afterwords in a
+ * workqueue.
+ */
+static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
+{
+	struct snd_pcm_substream *substream = azx_dev->substream;
+	int stream = substream->stream;
+	u32 wallclk;
+	unsigned int pos;
+
+	wallclk = azx_readl(chip, WALLCLK) - azx_dev->start_wallclk;
+	if (wallclk < (azx_dev->period_wallclk * 2) / 3)
+		return -1;	/* bogus (too early) interrupt */
+
+	if (chip->get_position[stream])
+		pos = chip->get_position[stream](chip, azx_dev);
+	else { /* use the position buffer as default */
+		pos = azx_get_pos_posbuf(chip, azx_dev);
+		if (!pos || pos == (u32)-1) {
+			dev_info(chip->card->dev,
+				 "Invalid position buffer, using LPIB read method instead.\n");
+			chip->get_position[stream] = azx_get_pos_lpib;
+			pos = azx_get_pos_lpib(chip, azx_dev);
+			chip->get_delay[stream] = NULL;
+		} else {
+			chip->get_position[stream] = azx_get_pos_posbuf;
+			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
+				chip->get_delay[stream] = azx_get_delay_from_lpib;
+		}
+	}
+
+	if (pos >= azx_dev->bufsize)
+		pos = 0;
+
+	if (WARN_ONCE(!azx_dev->period_bytes,
+		      "hda-intel: zero azx_dev->period_bytes"))
+		return -1; /* this shouldn't happen! */
+	if (wallclk < (azx_dev->period_wallclk * 5) / 4 &&
+	    pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
+		/* NG - it's below the first next period boundary */
+		return chip->bdl_pos_adj[chip->dev_index] ? 0 : -1;
+	azx_dev->start_wallclk += wallclk;
+	return 1; /* OK, it's fine */
+}
+
+/*
+ * The work for pending PCM period updates.
+ */
+static void azx_irq_pending_work(struct work_struct *work)
+{
+	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
+	struct azx *chip = &hda->chip;
+	int i, pending, ok;
+
+	if (!hda->irq_pending_warned) {
+		dev_info(chip->card->dev,
+			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
+			 chip->card->number);
+		hda->irq_pending_warned = 1;
+	}
+
+	for (;;) {
+		pending = 0;
+		spin_lock_irq(&chip->reg_lock);
+		for (i = 0; i < chip->num_streams; i++) {
+			struct azx_dev *azx_dev = &chip->azx_dev[i];
+			if (!azx_dev->irq_pending ||
+			    !azx_dev->substream ||
+			    !azx_dev->running)
+				continue;
+			ok = azx_position_ok(chip, azx_dev);
+			if (ok > 0) {
+				azx_dev->irq_pending = 0;
+				spin_unlock(&chip->reg_lock);
+				snd_pcm_period_elapsed(azx_dev->substream);
+				spin_lock(&chip->reg_lock);
+			} else if (ok < 0) {
+				pending = 0;	/* too early */
+			} else
+				pending++;
+		}
+		spin_unlock_irq(&chip->reg_lock);
+		if (!pending)
+			return;
+		msleep(1);
+	}
+}
+
+/* clear irq_pending flags and assure no on-going workq */
+static void azx_clear_irq_pending(struct azx *chip)
+{
+	int i;
+
+	spin_lock_irq(&chip->reg_lock);
+	for (i = 0; i < chip->num_streams; i++)
+		chip->azx_dev[i].irq_pending = 0;
+	spin_unlock_irq(&chip->reg_lock);
+}
+
+static int azx_acquire_irq(struct azx *chip, int do_disconnect)
+{
+	if (request_irq(chip->pci->irq, azx_interrupt,
+			chip->msi ? 0 : IRQF_SHARED,
+			KBUILD_MODNAME, chip)) {
+		dev_err(chip->card->dev,
+			"unable to grab IRQ %d, disabling device\n",
+			chip->pci->irq);
+		if (do_disconnect)
+			snd_card_disconnect(chip->card);
+		return -1;
+	}
+	chip->irq = chip->pci->irq;
+	pci_intx(chip->pci, !chip->msi);
+	return 0;
+}
+
+/* get the current DMA position with correction on VIA chips */
+static unsigned int azx_via_get_position(struct azx *chip,
+					 struct azx_dev *azx_dev)
+{
+	unsigned int link_pos, mini_pos, bound_pos;
+	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
+	unsigned int fifo_size;
+
+	link_pos = azx_sd_readl(chip, azx_dev, SD_LPIB);
+	if (azx_dev->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		/* Playback, no problem using link position */
+		return link_pos;
+	}
+
+	/* Capture */
+	/* For new chipset,
+	 * use mod to get the DMA position just like old chipset
+	 */
+	mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
+	mod_dma_pos %= azx_dev->period_bytes;
+
+	/* azx_dev->fifo_size can't get FIFO size of in stream.
+	 * Get from base address + offset.
+	 */
+	fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
+
+	if (azx_dev->insufficient) {
+		/* Link position never gather than FIFO size */
+		if (link_pos <= fifo_size)
+			return 0;
+
+		azx_dev->insufficient = 0;
+	}
+
+	if (link_pos <= fifo_size)
+		mini_pos = azx_dev->bufsize + link_pos - fifo_size;
+	else
+		mini_pos = link_pos - fifo_size;
+
+	/* Find nearest previous boudary */
+	mod_mini_pos = mini_pos % azx_dev->period_bytes;
+	mod_link_pos = link_pos % azx_dev->period_bytes;
+	if (mod_link_pos >= fifo_size)
+		bound_pos = link_pos - mod_link_pos;
+	else if (mod_dma_pos >= mod_mini_pos)
+		bound_pos = mini_pos - mod_mini_pos;
+	else {
+		bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
+		if (bound_pos >= azx_dev->bufsize)
+			bound_pos = 0;
+	}
+
+	/* Calculate real DMA position we want */
+	return bound_pos + mod_dma_pos;
+}
+
+#ifdef CONFIG_PM
+static DEFINE_MUTEX(card_list_lock);
+static LIST_HEAD(card_list);
+
+static void azx_add_card_list(struct azx *chip)
+{
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+	mutex_lock(&card_list_lock);
+	list_add(&hda->list, &card_list);
+	mutex_unlock(&card_list_lock);
+}
+
+static void azx_del_card_list(struct azx *chip)
+{
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+	mutex_lock(&card_list_lock);
+	list_del_init(&hda->list);
+	mutex_unlock(&card_list_lock);
+}
+
+/* trigger power-save check at writing parameter */
+static int param_set_xint(const char *val, const struct kernel_param *kp)
+{
+	struct hda_intel *hda;
+	struct azx *chip;
+	int prev = power_save;
+	int ret = param_set_int(val, kp);
+
+	if (ret || prev == power_save)
+		return ret;
+
+	mutex_lock(&card_list_lock);
+	list_for_each_entry(hda, &card_list, list) {
+		chip = &hda->chip;
+		if (!chip->bus || chip->disabled)
+			continue;
+		snd_hda_set_power_save(chip->bus, power_save * 1000);
+	}
+	mutex_unlock(&card_list_lock);
+	return 0;
+}
+#else
+#define azx_add_card_list(chip) /* NOP */
+#define azx_del_card_list(chip) /* NOP */
+#endif /* CONFIG_PM */
+
+#if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
+/*
+ * power management
+ */
+static int azx_suspend(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct azx *chip;
+	struct hda_intel *hda;
+
+	if (!card)
+		return 0;
+
+	chip = card->private_data;
+	hda = container_of(chip, struct hda_intel, chip);
+	if (chip->disabled || hda->init_failed)
+		return 0;
+
+	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+	azx_clear_irq_pending(chip);
+	azx_stop_chip(chip);
+	azx_enter_link_reset(chip);
+	if (chip->irq >= 0) {
+		free_irq(chip->irq, chip);
+		chip->irq = -1;
+	}
+
+	if (chip->msi)
+		pci_disable_msi(chip->pci);
+	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
+		hda_display_power(hda, false);
+	return 0;
+}
+
+static int azx_resume(struct device *dev)
+{
+	struct pci_dev *pci = to_pci_dev(dev);
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct azx *chip;
+	struct hda_intel *hda;
+
+	if (!card)
+		return 0;
+
+	chip = card->private_data;
+	hda = container_of(chip, struct hda_intel, chip);
+	if (chip->disabled || hda->init_failed)
+		return 0;
+
+	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
+		hda_display_power(hda, true);
+		haswell_set_bclk(hda);
+	}
+	if (chip->msi)
+		if (pci_enable_msi(pci) < 0)
+			chip->msi = 0;
+	if (azx_acquire_irq(chip, 1) < 0)
+		return -EIO;
+	azx_init_pci(chip);
+
+	azx_init_chip(chip, true);
+
+	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
+
+#ifdef CONFIG_PM
+static int azx_runtime_suspend(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct azx *chip;
+	struct hda_intel *hda;
+
+	if (!card)
+		return 0;
+
+	chip = card->private_data;
+	hda = container_of(chip, struct hda_intel, chip);
+	if (chip->disabled || hda->init_failed)
+		return 0;
+
+	if (!azx_has_pm_runtime(chip))
+		return 0;
+
+	/* enable controller wake up event */
+	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
+		  STATESTS_INT_MASK);
+
+	azx_stop_chip(chip);
+	azx_enter_link_reset(chip);
+	azx_clear_irq_pending(chip);
+	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
+		hda_display_power(hda, false);
+
+	return 0;
+}
+
+static int azx_runtime_resume(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct azx *chip;
+	struct hda_intel *hda;
+	struct hda_bus *bus;
+	struct hda_codec *codec;
+	int status;
+
+	if (!card)
+		return 0;
+
+	chip = card->private_data;
+	hda = container_of(chip, struct hda_intel, chip);
+	if (chip->disabled || hda->init_failed)
+		return 0;
+
+	if (!azx_has_pm_runtime(chip))
+		return 0;
+
+	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
+		hda_display_power(hda, true);
+		haswell_set_bclk(hda);
+	}
+
+	/* Read STATESTS before controller reset */
+	status = azx_readw(chip, STATESTS);
+
+	azx_init_pci(chip);
+	azx_init_chip(chip, true);
+
+	bus = chip->bus;
+	if (status && bus) {
+		list_for_each_codec(codec, bus)
+			if (status & (1 << codec->addr))
+				schedule_delayed_work(&codec->jackpoll_work,
+						      codec->jackpoll_interval);
+	}
+
+	/* disable controller Wake Up event*/
+	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
+			~STATESTS_INT_MASK);
+
+	return 0;
+}
+
+static int azx_runtime_idle(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct azx *chip;
+	struct hda_intel *hda;
+
+	if (!card)
+		return 0;
+
+	chip = card->private_data;
+	hda = container_of(chip, struct hda_intel, chip);
+	if (chip->disabled || hda->init_failed)
+		return 0;
+
+	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
+	    chip->bus->core.codec_powered)
+		return -EBUSY;
+
+	return 0;
+}
+
+static const struct dev_pm_ops azx_pm = {
+	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
+	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
+};
+
+#define AZX_PM_OPS	&azx_pm
+#else
+#define AZX_PM_OPS	NULL
+#endif /* CONFIG_PM */
+
+
+static int azx_probe_continue(struct azx *chip);
+
+#ifdef SUPPORT_VGA_SWITCHEROO
+static struct pci_dev *get_bound_vga(struct pci_dev *pci);
+
+static void azx_vs_set_state(struct pci_dev *pci,
+			     enum vga_switcheroo_state state)
+{
+	struct snd_card *card = pci_get_drvdata(pci);
+	struct azx *chip = card->private_data;
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+	bool disabled;
+
+	wait_for_completion(&hda->probe_wait);
+	if (hda->init_failed)
+		return;
+
+	disabled = (state == VGA_SWITCHEROO_OFF);
+	if (chip->disabled == disabled)
+		return;
+
+	if (!chip->bus) {
+		chip->disabled = disabled;
+		if (!disabled) {
+			dev_info(chip->card->dev,
+				 "Start delayed initialization\n");
+			if (azx_probe_continue(chip) < 0) {
+				dev_err(chip->card->dev, "initialization error\n");
+				hda->init_failed = true;
+			}
+		}
+	} else {
+		dev_info(chip->card->dev, "%s via VGA-switcheroo\n",
+			 disabled ? "Disabling" : "Enabling");
+		if (disabled) {
+			pm_runtime_put_sync_suspend(card->dev);
+			azx_suspend(card->dev);
+			/* when we get suspended by vga switcheroo we end up in D3cold,
+			 * however we have no ACPI handle, so pci/acpi can't put us there,
+			 * put ourselves there */
+			pci->current_state = PCI_D3cold;
+			chip->disabled = true;
+			if (snd_hda_lock_devices(chip->bus))
+				dev_warn(chip->card->dev,
+					 "Cannot lock devices!\n");
+		} else {
+			snd_hda_unlock_devices(chip->bus);
+			pm_runtime_get_noresume(card->dev);
+			chip->disabled = false;
+			azx_resume(card->dev);
+		}
+	}
+}
+
+static bool azx_vs_can_switch(struct pci_dev *pci)
+{
+	struct snd_card *card = pci_get_drvdata(pci);
+	struct azx *chip = card->private_data;
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+
+	wait_for_completion(&hda->probe_wait);
+	if (hda->init_failed)
+		return false;
+	if (chip->disabled || !chip->bus)
+		return true;
+	if (snd_hda_lock_devices(chip->bus))
+		return false;
+	snd_hda_unlock_devices(chip->bus);
+	return true;
+}
+
+static void init_vga_switcheroo(struct azx *chip)
+{
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+	struct pci_dev *p = get_bound_vga(chip->pci);
+	if (p) {
+		dev_info(chip->card->dev,
+			 "Handle VGA-switcheroo audio client\n");
+		hda->use_vga_switcheroo = 1;
+		pci_dev_put(p);
+	}
+}
+
+static const struct vga_switcheroo_client_ops azx_vs_ops = {
+	.set_gpu_state = azx_vs_set_state,
+	.can_switch = azx_vs_can_switch,
+};
+
+static int register_vga_switcheroo(struct azx *chip)
+{
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+	int err;
+
+	if (!hda->use_vga_switcheroo)
+		return 0;
+	/* FIXME: currently only handling DIS controller
+	 * is there any machine with two switchable HDMI audio controllers?
+	 */
+	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
+						    VGA_SWITCHEROO_DIS,
+						    chip->bus != NULL);
+	if (err < 0)
+		return err;
+	hda->vga_switcheroo_registered = 1;
+
+	/* register as an optimus hdmi audio power domain */
+	vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
+							 &hda->hdmi_pm_domain);
+	return 0;
+}
+#else
+#define init_vga_switcheroo(chip)		/* NOP */
+#define register_vga_switcheroo(chip)		0
+#define check_hdmi_disabled(pci)	false
+#endif /* SUPPORT_VGA_SWITCHER */
+
+/*
+ * destructor
+ */
+static int azx_free(struct azx *chip)
+{
+	struct pci_dev *pci = chip->pci;
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+	int i;
+
+	if (azx_has_pm_runtime(chip) && chip->running)
+		pm_runtime_get_noresume(&pci->dev);
+
+	azx_del_card_list(chip);
+
+	hda->init_failed = 1; /* to be sure */
+	complete_all(&hda->probe_wait);
+
+	if (use_vga_switcheroo(hda)) {
+		if (chip->disabled && chip->bus)
+			snd_hda_unlock_devices(chip->bus);
+		if (hda->vga_switcheroo_registered)
+			vga_switcheroo_unregister_client(chip->pci);
+	}
+
+	if (chip->initialized) {
+		azx_clear_irq_pending(chip);
+		for (i = 0; i < chip->num_streams; i++)
+			azx_stream_stop(chip, &chip->azx_dev[i]);
+		azx_stop_chip(chip);
+	}
+
+	if (chip->irq >= 0)
+		free_irq(chip->irq, (void*)chip);
+	if (chip->msi)
+		pci_disable_msi(chip->pci);
+	iounmap(chip->remap_addr);
+
+	azx_free_stream_pages(chip);
+	if (chip->region_requested)
+		pci_release_regions(chip->pci);
+	pci_disable_device(chip->pci);
+	kfree(chip->azx_dev);
+#ifdef CONFIG_SND_HDA_PATCH_LOADER
+	release_firmware(chip->fw);
+#endif
+	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
+		hda_display_power(hda, false);
+		hda_i915_exit(hda);
+	}
+	kfree(hda);
+
+	return 0;
+}
+
+static int azx_dev_free(struct snd_device *device)
+{
+	return azx_free(device->device_data);
+}
+
+#ifdef SUPPORT_VGA_SWITCHEROO
+/*
+ * Check of disabled HDMI controller by vga-switcheroo
+ */
+static struct pci_dev *get_bound_vga(struct pci_dev *pci)
+{
+	struct pci_dev *p;
+
+	/* check only discrete GPU */
+	switch (pci->vendor) {
+	case PCI_VENDOR_ID_ATI:
+	case PCI_VENDOR_ID_AMD:
+	case PCI_VENDOR_ID_NVIDIA:
+		if (pci->devfn == 1) {
+			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
+							pci->bus->number, 0);
+			if (p) {
+				if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
+					return p;
+				pci_dev_put(p);
+			}
+		}
+		break;
+	}
+	return NULL;
+}
+
+static bool check_hdmi_disabled(struct pci_dev *pci)
+{
+	bool vga_inactive = false;
+	struct pci_dev *p = get_bound_vga(pci);
+
+	if (p) {
+		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
+			vga_inactive = true;
+		pci_dev_put(p);
+	}
+	return vga_inactive;
+}
+#endif /* SUPPORT_VGA_SWITCHEROO */
+
+/*
+ * white/black-listing for position_fix
+ */
+static struct snd_pci_quirk position_fix_list[] = {
+	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
+	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
+	{}
+};
+
+static int check_position_fix(struct azx *chip, int fix)
+{
+	const struct snd_pci_quirk *q;
+
+	switch (fix) {
+	case POS_FIX_AUTO:
+	case POS_FIX_LPIB:
+	case POS_FIX_POSBUF:
+	case POS_FIX_VIACOMBO:
+	case POS_FIX_COMBO:
+		return fix;
+	}
+
+	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
+	if (q) {
+		dev_info(chip->card->dev,
+			 "position_fix set to %d for device %04x:%04x\n",
+			 q->value, q->subvendor, q->subdevice);
+		return q->value;
+	}
+
+	/* Check VIA/ATI HD Audio Controller exist */
+	if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
+		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
+		return POS_FIX_VIACOMBO;
+	}
+	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
+		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
+		return POS_FIX_LPIB;
+	}
+	return POS_FIX_AUTO;
+}
+
+static void assign_position_fix(struct azx *chip, int fix)
+{
+	static azx_get_pos_callback_t callbacks[] = {
+		[POS_FIX_AUTO] = NULL,
+		[POS_FIX_LPIB] = azx_get_pos_lpib,
+		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
+		[POS_FIX_VIACOMBO] = azx_via_get_position,
+		[POS_FIX_COMBO] = azx_get_pos_lpib,
+	};
+
+	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
+
+	/* combo mode uses LPIB only for playback */
+	if (fix == POS_FIX_COMBO)
+		chip->get_position[1] = NULL;
+
+	if (fix == POS_FIX_POSBUF &&
+	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
+		chip->get_delay[0] = chip->get_delay[1] =
+			azx_get_delay_from_lpib;
+	}
+
+}
+
+/*
+ * black-lists for probe_mask
+ */
+static struct snd_pci_quirk probe_mask_list[] = {
+	/* Thinkpad often breaks the controller communication when accessing
+	 * to the non-working (or non-existing) modem codec slot.
+	 */
+	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
+	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
+	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
+	/* broken BIOS */
+	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
+	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
+	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
+	/* forced codec slots */
+	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
+	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
+	/* WinFast VP200 H (Teradici) user reported broken communication */
+	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
+	{}
+};
+
+#define AZX_FORCE_CODEC_MASK	0x100
+
+static void check_probe_mask(struct azx *chip, int dev)
+{
+	const struct snd_pci_quirk *q;
+
+	chip->codec_probe_mask = probe_mask[dev];
+	if (chip->codec_probe_mask == -1) {
+		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
+		if (q) {
+			dev_info(chip->card->dev,
+				 "probe_mask set to 0x%x for device %04x:%04x\n",
+				 q->value, q->subvendor, q->subdevice);
+			chip->codec_probe_mask = q->value;
+		}
+	}
+
+	/* check forced option */
+	if (chip->codec_probe_mask != -1 &&
+	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
+		chip->codec_mask = chip->codec_probe_mask & 0xff;
+		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
+			 chip->codec_mask);
+	}
+}
+
+/*
+ * white/black-list for enable_msi
+ */
+static struct snd_pci_quirk msi_black_list[] = {
+	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
+	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
+	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
+	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
+	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
+	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
+	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
+	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
+	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
+	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
+	{}
+};
+
+static void check_msi(struct azx *chip)
+{
+	const struct snd_pci_quirk *q;
+
+	if (enable_msi >= 0) {
+		chip->msi = !!enable_msi;
+		return;
+	}
+	chip->msi = 1;	/* enable MSI as default */
+	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
+	if (q) {
+		dev_info(chip->card->dev,
+			 "msi for device %04x:%04x set to %d\n",
+			 q->subvendor, q->subdevice, q->value);
+		chip->msi = q->value;
+		return;
+	}
+
+	/* NVidia chipsets seem to cause troubles with MSI */
+	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
+		dev_info(chip->card->dev, "Disabling MSI\n");
+		chip->msi = 0;
+	}
+}
+
+/* check the snoop mode availability */
+static void azx_check_snoop_available(struct azx *chip)
+{
+	int snoop = hda_snoop;
+
+	if (snoop >= 0) {
+		dev_info(chip->card->dev, "Force to %s mode by module option\n",
+			 snoop ? "snoop" : "non-snoop");
+		chip->snoop = snoop;
+		return;
+	}
+
+	snoop = true;
+	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
+	    chip->driver_type == AZX_DRIVER_VIA) {
+		/* force to non-snoop mode for a new VIA controller
+		 * when BIOS is set
+		 */
+		u8 val;
+		pci_read_config_byte(chip->pci, 0x42, &val);
+		if (!(val & 0x80) && chip->pci->revision == 0x30)
+			snoop = false;
+	}
+
+	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
+		snoop = false;
+
+	chip->snoop = snoop;
+	if (!snoop)
+		dev_info(chip->card->dev, "Force to non-snoop mode\n");
+}
+
+static void azx_probe_work(struct work_struct *work)
+{
+	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
+	azx_probe_continue(&hda->chip);
+}
+
+/*
+ * constructor
+ */
+static int azx_create(struct snd_card *card, struct pci_dev *pci,
+		      int dev, unsigned int driver_caps,
+		      const struct hda_controller_ops *hda_ops,
+		      struct azx **rchip)
+{
+	static struct snd_device_ops ops = {
+		.dev_free = azx_dev_free,
+	};
+	struct hda_intel *hda;
+	struct azx *chip;
+	int err;
+
+	*rchip = NULL;
+
+	err = pci_enable_device(pci);
+	if (err < 0)
+		return err;
+
+	hda = kzalloc(sizeof(*hda), GFP_KERNEL);
+	if (!hda) {
+		pci_disable_device(pci);
+		return -ENOMEM;
+	}
+
+	chip = &hda->chip;
+	spin_lock_init(&chip->reg_lock);
+	mutex_init(&chip->open_mutex);
+	chip->card = card;
+	chip->pci = pci;
+	chip->ops = hda_ops;
+	chip->irq = -1;
+	chip->driver_caps = driver_caps;
+	chip->driver_type = driver_caps & 0xff;
+	check_msi(chip);
+	chip->dev_index = dev;
+	chip->jackpoll_ms = jackpoll_ms;
+	INIT_LIST_HEAD(&chip->pcm_list);
+	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
+	INIT_LIST_HEAD(&hda->list);
+	init_vga_switcheroo(chip);
+	init_completion(&hda->probe_wait);
+
+	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
+
+	check_probe_mask(chip, dev);
+
+	chip->single_cmd = single_cmd;
+	azx_check_snoop_available(chip);
+
+	if (bdl_pos_adj[dev] < 0) {
+		switch (chip->driver_type) {
+		case AZX_DRIVER_ICH:
+		case AZX_DRIVER_PCH:
+			bdl_pos_adj[dev] = 1;
+			break;
+		default:
+			bdl_pos_adj[dev] = 32;
+			break;
+		}
+	}
+	chip->bdl_pos_adj = bdl_pos_adj;
+
+	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
+	if (err < 0) {
+		dev_err(card->dev, "Error creating device [card]!\n");
+		azx_free(chip);
+		return err;
+	}
+
+	/* continue probing in work context as may trigger request module */
+	INIT_WORK(&hda->probe_work, azx_probe_work);
+
+	*rchip = chip;
+
+	return 0;
+}
+
+static int azx_first_init(struct azx *chip)
+{
+	int dev = chip->dev_index;
+	struct pci_dev *pci = chip->pci;
+	struct snd_card *card = chip->card;
+	int err;
+	unsigned short gcap;
+	unsigned int dma_bits = 64;
+
+#if BITS_PER_LONG != 64
+	/* Fix up base address on ULI M5461 */
+	if (chip->driver_type == AZX_DRIVER_ULI) {
+		u16 tmp3;
+		pci_read_config_word(pci, 0x40, &tmp3);
+		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
+		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
+	}
+#endif
+
+	err = pci_request_regions(pci, "ICH HD audio");
+	if (err < 0)
+		return err;
+	chip->region_requested = 1;
+
+	chip->addr = pci_resource_start(pci, 0);
+	chip->remap_addr = pci_ioremap_bar(pci, 0);
+	if (chip->remap_addr == NULL) {
+		dev_err(card->dev, "ioremap error\n");
+		return -ENXIO;
+	}
+
+	if (chip->msi) {
+		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
+			dev_dbg(card->dev, "Disabling 64bit MSI\n");
+			pci->no_64bit_msi = true;
+		}
+		if (pci_enable_msi(pci) < 0)
+			chip->msi = 0;
+	}
+
+	if (azx_acquire_irq(chip, 0) < 0)
+		return -EBUSY;
+
+	pci_set_master(pci);
+	synchronize_irq(chip->irq);
+
+	gcap = azx_readw(chip, GCAP);
+	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
+
+	/* AMD devices support 40 or 48bit DMA, take the safe one */
+	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
+		dma_bits = 40;
+
+	/* disable SB600 64bit support for safety */
+	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
+		struct pci_dev *p_smbus;
+		dma_bits = 40;
+		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
+					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
+					 NULL);
+		if (p_smbus) {
+			if (p_smbus->revision < 0x30)
+				gcap &= ~AZX_GCAP_64OK;
+			pci_dev_put(p_smbus);
+		}
+	}
+
+	/* disable 64bit DMA address on some devices */
+	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
+		dev_dbg(card->dev, "Disabling 64bit DMA\n");
+		gcap &= ~AZX_GCAP_64OK;
+	}
+
+	/* disable buffer size rounding to 128-byte multiples if supported */
+	if (align_buffer_size >= 0)
+		chip->align_buffer_size = !!align_buffer_size;
+	else {
+		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
+			chip->align_buffer_size = 0;
+		else
+			chip->align_buffer_size = 1;
+	}
+
+	/* allow 64bit DMA address if supported by H/W */
+	if (!(gcap & AZX_GCAP_64OK))
+		dma_bits = 32;
+	if (!pci_set_dma_mask(pci, DMA_BIT_MASK(dma_bits))) {
+		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(dma_bits));
+	} else {
+		pci_set_dma_mask(pci, DMA_BIT_MASK(32));
+		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
+	}
+
+	/* read number of streams from GCAP register instead of using
+	 * hardcoded value
+	 */
+	chip->capture_streams = (gcap >> 8) & 0x0f;
+	chip->playback_streams = (gcap >> 12) & 0x0f;
+	if (!chip->playback_streams && !chip->capture_streams) {
+		/* gcap didn't give any info, switching to old method */
+
+		switch (chip->driver_type) {
+		case AZX_DRIVER_ULI:
+			chip->playback_streams = ULI_NUM_PLAYBACK;
+			chip->capture_streams = ULI_NUM_CAPTURE;
+			break;
+		case AZX_DRIVER_ATIHDMI:
+		case AZX_DRIVER_ATIHDMI_NS:
+			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
+			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
+			break;
+		case AZX_DRIVER_GENERIC:
+		default:
+			chip->playback_streams = ICH6_NUM_PLAYBACK;
+			chip->capture_streams = ICH6_NUM_CAPTURE;
+			break;
+		}
+	}
+	chip->capture_index_offset = 0;
+	chip->playback_index_offset = chip->capture_streams;
+	chip->num_streams = chip->playback_streams + chip->capture_streams;
+	chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
+				GFP_KERNEL);
+	if (!chip->azx_dev)
+		return -ENOMEM;
+
+	err = azx_alloc_stream_pages(chip);
+	if (err < 0)
+		return err;
+
+	/* initialize streams */
+	azx_init_stream(chip);
+
+	/* initialize chip */
+	azx_init_pci(chip);
+
+	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
+		struct hda_intel *hda;
+
+		hda = container_of(chip, struct hda_intel, chip);
+		haswell_set_bclk(hda);
+	}
+
+	azx_init_chip(chip, (probe_only[dev] & 2) == 0);
+
+	/* codec detection */
+	if (!chip->codec_mask) {
+		dev_err(card->dev, "no codecs found!\n");
+		return -ENODEV;
+	}
+
+	strcpy(card->driver, "HDA-Intel");
+	strlcpy(card->shortname, driver_short_names[chip->driver_type],
+		sizeof(card->shortname));
+	snprintf(card->longname, sizeof(card->longname),
+		 "%s at 0x%lx irq %i",
+		 card->shortname, chip->addr, chip->irq);
+
+	return 0;
+}
+
+#ifdef CONFIG_SND_HDA_PATCH_LOADER
+/* callback from request_firmware_nowait() */
+static void azx_firmware_cb(const struct firmware *fw, void *context)
+{
+	struct snd_card *card = context;
+	struct azx *chip = card->private_data;
+	struct pci_dev *pci = chip->pci;
+
+	if (!fw) {
+		dev_err(card->dev, "Cannot load firmware, aborting\n");
+		goto error;
+	}
+
+	chip->fw = fw;
+	if (!chip->disabled) {
+		/* continue probing */
+		if (azx_probe_continue(chip))
+			goto error;
+	}
+	return; /* OK */
+
+ error:
+	snd_card_free(card);
+	pci_set_drvdata(pci, NULL);
+}
+#endif
+
+/*
+ * HDA controller ops.
+ */
+
+/* PCI register access. */
+static void pci_azx_writel(u32 value, u32 __iomem *addr)
+{
+	writel(value, addr);
+}
+
+static u32 pci_azx_readl(u32 __iomem *addr)
+{
+	return readl(addr);
+}
+
+static void pci_azx_writew(u16 value, u16 __iomem *addr)
+{
+	writew(value, addr);
+}
+
+static u16 pci_azx_readw(u16 __iomem *addr)
+{
+	return readw(addr);
+}
+
+static void pci_azx_writeb(u8 value, u8 __iomem *addr)
+{
+	writeb(value, addr);
+}
+
+static u8 pci_azx_readb(u8 __iomem *addr)
+{
+	return readb(addr);
+}
+
+static int disable_msi_reset_irq(struct azx *chip)
+{
+	int err;
+
+	free_irq(chip->irq, chip);
+	chip->irq = -1;
+	pci_disable_msi(chip->pci);
+	chip->msi = 0;
+	err = azx_acquire_irq(chip, 1);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+/* DMA page allocation helpers.  */
+static int dma_alloc_pages(struct azx *chip,
+			   int type,
+			   size_t size,
+			   struct snd_dma_buffer *buf)
+{
+	int err;
+
+	err = snd_dma_alloc_pages(type,
+				  chip->card->dev,
+				  size, buf);
+	if (err < 0)
+		return err;
+	mark_pages_wc(chip, buf, true);
+	return 0;
+}
+
+static void dma_free_pages(struct azx *chip, struct snd_dma_buffer *buf)
+{
+	mark_pages_wc(chip, buf, false);
+	snd_dma_free_pages(buf);
+}
+
+static int substream_alloc_pages(struct azx *chip,
+				 struct snd_pcm_substream *substream,
+				 size_t size)
+{
+	struct azx_dev *azx_dev = get_azx_dev(substream);
+	int ret;
+
+	mark_runtime_wc(chip, azx_dev, substream, false);
+	azx_dev->bufsize = 0;
+	azx_dev->period_bytes = 0;
+	azx_dev->format_val = 0;
+	ret = snd_pcm_lib_malloc_pages(substream, size);
+	if (ret < 0)
+		return ret;
+	mark_runtime_wc(chip, azx_dev, substream, true);
+	return 0;
+}
+
+static int substream_free_pages(struct azx *chip,
+				struct snd_pcm_substream *substream)
+{
+	struct azx_dev *azx_dev = get_azx_dev(substream);
+	mark_runtime_wc(chip, azx_dev, substream, false);
+	return snd_pcm_lib_free_pages(substream);
+}
+
+static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
+			     struct vm_area_struct *area)
+{
+#ifdef CONFIG_X86
+	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
+	struct azx *chip = apcm->chip;
+	if (!azx_snoop(chip) && chip->driver_type != AZX_DRIVER_CMEDIA)
+		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
+#endif
+}
+
+static const struct hda_controller_ops pci_hda_ops = {
+	.reg_writel = pci_azx_writel,
+	.reg_readl = pci_azx_readl,
+	.reg_writew = pci_azx_writew,
+	.reg_readw = pci_azx_readw,
+	.reg_writeb = pci_azx_writeb,
+	.reg_readb = pci_azx_readb,
+	.disable_msi_reset_irq = disable_msi_reset_irq,
+	.dma_alloc_pages = dma_alloc_pages,
+	.dma_free_pages = dma_free_pages,
+	.substream_alloc_pages = substream_alloc_pages,
+	.substream_free_pages = substream_free_pages,
+	.pcm_mmap_prepare = pcm_mmap_prepare,
+	.position_check = azx_position_check,
+};
+
+static int azx_probe(struct pci_dev *pci,
+		     const struct pci_device_id *pci_id)
+{
+	static int dev;
+	struct snd_card *card;
+	struct hda_intel *hda;
+	struct azx *chip;
+	bool schedule_probe;
+	int err;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+
+	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+			   0, &card);
+	if (err < 0) {
+		dev_err(&pci->dev, "Error creating card!\n");
+		return err;
+	}
+
+	err = azx_create(card, pci, dev, pci_id->driver_data,
+			 &pci_hda_ops, &chip);
+	if (err < 0)
+		goto out_free;
+	card->private_data = chip;
+	hda = container_of(chip, struct hda_intel, chip);
+
+	pci_set_drvdata(pci, card);
+
+	err = register_vga_switcheroo(chip);
+	if (err < 0) {
+		dev_err(card->dev, "Error registering VGA-switcheroo client\n");
+		goto out_free;
+	}
+
+	if (check_hdmi_disabled(pci)) {
+		dev_info(card->dev, "VGA controller is disabled\n");
+		dev_info(card->dev, "Delaying initialization\n");
+		chip->disabled = true;
+	}
+
+	schedule_probe = !chip->disabled;
+
+#ifdef CONFIG_SND_HDA_PATCH_LOADER
+	if (patch[dev] && *patch[dev]) {
+		dev_info(card->dev, "Applying patch firmware '%s'\n",
+			 patch[dev]);
+		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
+					      &pci->dev, GFP_KERNEL, card,
+					      azx_firmware_cb);
+		if (err < 0)
+			goto out_free;
+		schedule_probe = false; /* continued in azx_firmware_cb() */
+	}
+#endif /* CONFIG_SND_HDA_PATCH_LOADER */
+
+#ifndef CONFIG_SND_HDA_I915
+	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
+		dev_err(card->dev, "Haswell must build in CONFIG_SND_HDA_I915\n");
+#endif
+
+	if (schedule_probe)
+		schedule_work(&hda->probe_work);
+
+	dev++;
+	if (chip->disabled)
+		complete_all(&hda->probe_wait);
+	return 0;
+
+out_free:
+	snd_card_free(card);
+	return err;
+}
+
+/* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
+static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
+	[AZX_DRIVER_NVIDIA] = 8,
+	[AZX_DRIVER_TERA] = 1,
+};
+
+static int azx_probe_continue(struct azx *chip)
+{
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
+	struct pci_dev *pci = chip->pci;
+	int dev = chip->dev_index;
+	int err;
+
+	/* Request power well for Haswell HDA controller and codec */
+	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
+#ifdef CONFIG_SND_HDA_I915
+		err = hda_i915_init(hda);
+		if (err < 0) {
+			/* if the controller is bound only with HDMI/DP
+			 * (for HSW and BDW), we need to abort the probe;
+			 * for other chips, still continue probing as other
+			 * codecs can be on the same link.
+			 */
+			if (CONTROLLER_IN_GPU(pci))
+				goto out_free;
+			else
+				goto skip_i915;
+		}
+		err = hda_display_power(hda, true);
+		if (err < 0) {
+			dev_err(chip->card->dev,
+				"Cannot turn on display power on i915\n");
+			goto out_free;
+		}
+#endif
+	}
+
+#ifdef CONFIG_SND_HDA_I915
+ skip_i915:
+#endif
+	err = azx_first_init(chip);
+	if (err < 0)
+		goto out_free;
+
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+	chip->beep_mode = beep_mode[dev];
+#endif
+
+	/* create codec instances */
+	err = azx_bus_create(chip, model[dev]);
+	if (err < 0)
+		goto out_free;
+
+	err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
+	if (err < 0)
+		goto out_free;
+
+#ifdef CONFIG_SND_HDA_PATCH_LOADER
+	if (chip->fw) {
+		err = snd_hda_load_patch(chip->bus, chip->fw->size,
+					 chip->fw->data);
+		if (err < 0)
+			goto out_free;
+#ifndef CONFIG_PM
+		release_firmware(chip->fw); /* no longer needed */
+		chip->fw = NULL;
+#endif
+	}
+#endif
+	if ((probe_only[dev] & 1) == 0) {
+		err = azx_codec_configure(chip);
+		if (err < 0)
+			goto out_free;
+	}
+
+	err = snd_card_register(chip->card);
+	if (err < 0)
+		goto out_free;
+
+	chip->running = 1;
+	azx_add_card_list(chip);
+	snd_hda_set_power_save(chip->bus, power_save * 1000);
+	if (azx_has_pm_runtime(chip) || hda->use_vga_switcheroo)
+		pm_runtime_put_noidle(&pci->dev);
+
+out_free:
+	if (err < 0)
+		hda->init_failed = 1;
+	complete_all(&hda->probe_wait);
+	return err;
+}
+
+static void azx_remove(struct pci_dev *pci)
+{
+	struct snd_card *card = pci_get_drvdata(pci);
+
+	if (card)
+		snd_card_free(card);
+}
+
+static void azx_shutdown(struct pci_dev *pci)
+{
+	struct snd_card *card = pci_get_drvdata(pci);
+	struct azx *chip;
+
+	if (!card)
+		return;
+	chip = card->private_data;
+	if (chip && chip->running)
+		azx_stop_chip(chip);
+}
+
+/* PCI IDs */
+static const struct pci_device_id azx_ids[] = {
+	/* CPT */
+	{ PCI_DEVICE(0x8086, 0x1c20),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
+	/* PBG */
+	{ PCI_DEVICE(0x8086, 0x1d20),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
+	/* Panther Point */
+	{ PCI_DEVICE(0x8086, 0x1e20),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
+	/* Lynx Point */
+	{ PCI_DEVICE(0x8086, 0x8c20),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	/* 9 Series */
+	{ PCI_DEVICE(0x8086, 0x8ca0),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	/* Wellsburg */
+	{ PCI_DEVICE(0x8086, 0x8d20),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	{ PCI_DEVICE(0x8086, 0x8d21),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	/* Lynx Point-LP */
+	{ PCI_DEVICE(0x8086, 0x9c20),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	/* Lynx Point-LP */
+	{ PCI_DEVICE(0x8086, 0x9c21),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	/* Wildcat Point-LP */
+	{ PCI_DEVICE(0x8086, 0x9ca0),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	/* Sunrise Point */
+	{ PCI_DEVICE(0x8086, 0xa170),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
+	/* Sunrise Point-LP */
+	{ PCI_DEVICE(0x8086, 0x9d70),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
+	/* Haswell */
+	{ PCI_DEVICE(0x8086, 0x0a0c),
+	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
+	{ PCI_DEVICE(0x8086, 0x0c0c),
+	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
+	{ PCI_DEVICE(0x8086, 0x0d0c),
+	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
+	/* Broadwell */
+	{ PCI_DEVICE(0x8086, 0x160c),
+	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
+	/* 5 Series/3400 */
+	{ PCI_DEVICE(0x8086, 0x3b56),
+	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
+	/* Poulsbo */
+	{ PCI_DEVICE(0x8086, 0x811b),
+	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
+	/* Oaktrail */
+	{ PCI_DEVICE(0x8086, 0x080a),
+	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
+	/* BayTrail */
+	{ PCI_DEVICE(0x8086, 0x0f04),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
+	/* Braswell */
+	{ PCI_DEVICE(0x8086, 0x2284),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
+	/* ICH6 */
+	{ PCI_DEVICE(0x8086, 0x2668),
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
+	/* ICH7 */
+	{ PCI_DEVICE(0x8086, 0x27d8),
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
+	/* ESB2 */
+	{ PCI_DEVICE(0x8086, 0x269a),
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
+	/* ICH8 */
+	{ PCI_DEVICE(0x8086, 0x284b),
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
+	/* ICH9 */
+	{ PCI_DEVICE(0x8086, 0x293e),
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
+	/* ICH9 */
+	{ PCI_DEVICE(0x8086, 0x293f),
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
+	/* ICH10 */
+	{ PCI_DEVICE(0x8086, 0x3a3e),
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
+	/* ICH10 */
+	{ PCI_DEVICE(0x8086, 0x3a6e),
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
+	/* Generic Intel */
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
+	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
+	  .class_mask = 0xffffff,
+	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
+	/* ATI SB 450/600/700/800/900 */
+	{ PCI_DEVICE(0x1002, 0x437b),
+	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
+	{ PCI_DEVICE(0x1002, 0x4383),
+	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
+	/* AMD Hudson */
+	{ PCI_DEVICE(0x1022, 0x780d),
+	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
+	/* ATI HDMI */
+	{ PCI_DEVICE(0x1002, 0x1308),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0x793b),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0x7919),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0x960f),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0x970f),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0x9840),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0xaa00),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa08),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa10),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa18),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa20),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa28),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa30),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa38),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa40),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa48),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa50),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa58),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa60),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa68),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa80),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa88),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa90),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa98),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0x9902),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0xaaa0),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0xaaa8),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0xaab0),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	{ PCI_DEVICE(0x1002, 0xaac8),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
+	/* VIA VT8251/VT8237A */
+	{ PCI_DEVICE(0x1106, 0x3288),
+	  .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
+	/* VIA GFX VT7122/VX900 */
+	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
+	/* VIA GFX VT6122/VX11 */
+	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
+	/* SIS966 */
+	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
+	/* ULI M5461 */
+	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
+	/* NVIDIA MCP */
+	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
+	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
+	  .class_mask = 0xffffff,
+	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
+	/* Teradici */
+	{ PCI_DEVICE(0x6549, 0x1200),
+	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
+	{ PCI_DEVICE(0x6549, 0x2200),
+	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
+	/* Creative X-Fi (CA0110-IBG) */
+	/* CTHDA chips */
+	{ PCI_DEVICE(0x1102, 0x0010),
+	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
+	{ PCI_DEVICE(0x1102, 0x0012),
+	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
+#if !IS_ENABLED(CONFIG_SND_CTXFI)
+	/* the following entry conflicts with snd-ctxfi driver,
+	 * as ctxfi driver mutates from HD-audio to native mode with
+	 * a special command sequence.
+	 */
+	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
+	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
+	  .class_mask = 0xffffff,
+	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
+	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
+#else
+	/* this entry seems still valid -- i.e. without emu20kx chip */
+	{ PCI_DEVICE(0x1102, 0x0009),
+	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
+	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
+#endif
+	/* CM8888 */
+	{ PCI_DEVICE(0x13f6, 0x5011),
+	  .driver_data = AZX_DRIVER_CMEDIA |
+	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
+	/* Vortex86MX */
+	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
+	/* VMware HDAudio */
+	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
+	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
+	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
+	  .class_mask = 0xffffff,
+	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
+	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
+	  .class_mask = 0xffffff,
+	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, azx_ids);
+
+/* pci_driver definition */
+static struct pci_driver azx_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = azx_ids,
+	.probe = azx_probe,
+	.remove = azx_remove,
+	.shutdown = azx_shutdown,
+	.driver = {
+		.pm = AZX_PM_OPS,
+	},
+};
+
+module_pci_driver(azx_driver);