Merge branch 'topic/hda' into to-push

4 files changed, 949 insertions, 313 deletions

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 394d7d378dc7..ee45454c50be 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -757,6 +757,8 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
     model	- force the model name
     position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF)
     probe_mask  - Bitmask to probe codecs (default = -1, meaning all slots)
+    probe_only	- Only probing and no codec initialization (default=off);
+		  Useful to check the initial codec status for debugging
     bdl_pos_adj	- Specifies the DMA IRQ timing delay in samples.
 		Passing -1 will make the driver to choose the appropriate
 		value based on the controller chip.
@@ -772,327 +774,23 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 
     This module supports multiple cards and autoprobe.
     
+    See Documentation/sound/alsa/HD-Audio.txt for more details about
+    HD-audio driver.
+
     Each codec may have a model table for different configurations.
     If your machine isn't listed there, the default (usually minimal)
     configuration is set up.  You can pass "model=<name>" option to
     specify a certain model in such a case.  There are different
-    models depending on the codec chip.
-
-	  Model name	Description
-	  ----------    -----------
-	ALC880
-	  3stack	3-jack in back and a headphone out
-	  3stack-digout	3-jack in back, a HP out and a SPDIF out
-	  5stack	5-jack in back, 2-jack in front
-	  5stack-digout	5-jack in back, 2-jack in front, a SPDIF out
-	  6stack	6-jack in back, 2-jack in front
-	  6stack-digout	6-jack with a SPDIF out
-	  w810		3-jack
-	  z71v		3-jack (HP shared SPDIF)
-	  asus		3-jack (ASUS Mobo)
-	  asus-w1v	ASUS W1V
-	  asus-dig	ASUS with SPDIF out
-	  asus-dig2	ASUS with SPDIF out (using GPIO2)
-	  uniwill	3-jack
-	  fujitsu	Fujitsu Laptops (Pi1536)
-	  F1734		2-jack
-	  lg		LG laptop (m1 express dual)
-	  lg-lw		LG LW20/LW25 laptop
-	  tcl		TCL S700
-	  clevo		Clevo laptops (m520G, m665n)
-	  medion	Medion Rim 2150
-	  test		for testing/debugging purpose, almost all controls can be
-			adjusted.  Appearing only when compiled with
-			$CONFIG_SND_DEBUG=y
-	  auto		auto-config reading BIOS (default)
-
-	ALC260
-	  hp		HP machines
-	  hp-3013	HP machines (3013-variant)
-	  hp-dc7600	HP DC7600
-	  fujitsu	Fujitsu S7020
-	  acer		Acer TravelMate
-	  will		Will laptops (PB V7900)
-	  replacer	Replacer 672V
-	  basic		fixed pin assignment (old default model)
-	  test		for testing/debugging purpose, almost all controls can
-			adjusted.  Appearing only when compiled with
-			$CONFIG_SND_DEBUG=y
-	  auto		auto-config reading BIOS (default)
-
-	ALC262
-	  fujitsu	Fujitsu Laptop
-	  hp-bpc	HP xw4400/6400/8400/9400 laptops
-	  hp-bpc-d7000	HP BPC D7000
-	  hp-tc-t5735	HP Thin Client T5735
-	  hp-rp5700	HP RP5700
-	  benq		Benq ED8
-	  benq-t31	Benq T31
-	  hippo		Hippo (ATI) with jack detection, Sony UX-90s
-	  hippo_1	Hippo (Benq) with jack detection
-	  sony-assamd	Sony ASSAMD
-	  toshiba-s06	Toshiba S06
-	  toshiba-rx1	Toshiba RX1
-	  ultra		Samsung Q1 Ultra Vista model
-	  lenovo-3000	Lenovo 3000 y410
-	  nec		NEC Versa S9100
-	  basic		fixed pin assignment w/o SPDIF
-	  auto		auto-config reading BIOS (default)
-
-	ALC267/268
-	  quanta-il1	Quanta IL1 mini-notebook
-	  3stack	3-stack model
-	  toshiba	Toshiba A205
-	  acer		Acer laptops
-	  acer-aspire	Acer Aspire One
-	  dell		Dell OEM laptops (Vostro 1200)
-	  zepto		Zepto laptops
-	  test		for testing/debugging purpose, almost all controls can
-			adjusted.  Appearing only when compiled with
-			$CONFIG_SND_DEBUG=y
-	  auto		auto-config reading BIOS (default)
-
-	ALC269
-	  basic		Basic preset
-	  quanta	Quanta FL1
-	  eeepc-p703	ASUS Eeepc P703 P900A
-	  eeepc-p901	ASUS Eeepc P901 S101
-
-	ALC662/663
-	  3stack-dig	3-stack (2-channel) with SPDIF
-	  3stack-6ch	 3-stack (6-channel)
-	  3stack-6ch-dig 3-stack (6-channel) with SPDIF
-	  6stack-dig	 6-stack with SPDIF
-	  lenovo-101e	 Lenovo laptop
-	  eeepc-p701	ASUS Eeepc P701
-	  eeepc-ep20	ASUS Eeepc EP20
-	  ecs		ECS/Foxconn mobo
-	  m51va		ASUS M51VA
-	  g71v		ASUS G71V
-	  h13		ASUS H13
-	  g50v		ASUS G50V
-	  asus-mode1	ASUS
-	  asus-mode2	ASUS
-	  asus-mode3	ASUS
-	  asus-mode4	ASUS
-	  asus-mode5	ASUS
-	  asus-mode6	ASUS
-	  auto		auto-config reading BIOS (default)
-
-	ALC882/885
-	  3stack-dig	3-jack with SPDIF I/O
-	  6stack-dig	6-jack digital with SPDIF I/O
-	  arima		Arima W820Di1
-	  targa		Targa T8, MSI-1049 T8
-	  asus-a7j	ASUS A7J
-	  asus-a7m	ASUS A7M
-	  macpro	MacPro support
-	  mbp3		Macbook Pro rev3
-	  imac24	iMac 24'' with jack detection
-	  w2jc		ASUS W2JC
-	  auto		auto-config reading BIOS (default)
-
-	ALC883/888
-	  3stack-dig	3-jack with SPDIF I/O
-	  6stack-dig	6-jack digital with SPDIF I/O
-	  3stack-6ch    3-jack 6-channel
-	  3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
-	  6stack-dig-demo  6-jack digital for Intel demo board
-	  acer		Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
-	  acer-aspire	Acer Aspire 9810
-	  medion	Medion Laptops
-	  medion-md2	Medion MD2
-	  targa-dig	Targa/MSI
-	  targa-2ch-dig	Targs/MSI with 2-channel
-	  laptop-eapd   3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
-	  lenovo-101e	Lenovo 101E
-	  lenovo-nb0763	Lenovo NB0763
-	  lenovo-ms7195-dig Lenovo MS7195
-	  lenovo-sky	Lenovo Sky
-	  haier-w66	Haier W66
-	  3stack-hp	HP machines with 3stack (Lucknow, Samba boards)
-	  6stack-dell	Dell machines with 6stack (Inspiron 530)
-	  mitac		Mitac 8252D
-	  clevo-m720	Clevo M720 laptop series
-	  fujitsu-pi2515 Fujitsu AMILO Pi2515
-	  3stack-6ch-intel Intel DG33* boards
-	  auto		auto-config reading BIOS (default)
-
-	ALC861/660
-	  3stack	3-jack
-	  3stack-dig	3-jack with SPDIF I/O
-	  6stack-dig	6-jack with SPDIF I/O
-	  3stack-660	3-jack (for ALC660)
-	  uniwill-m31	Uniwill M31 laptop
-	  toshiba	Toshiba laptop support
-	  asus		Asus laptop support
-	  asus-laptop	ASUS F2/F3 laptops
-	  auto		auto-config reading BIOS (default)
-
-	ALC861VD/660VD
-	  3stack	3-jack
-	  3stack-dig	3-jack with SPDIF OUT
-	  6stack-dig	6-jack with SPDIF OUT
-	  3stack-660	3-jack (for ALC660VD)
-	  3stack-660-digout 3-jack with SPDIF OUT (for ALC660VD)
-	  lenovo	Lenovo 3000 C200
-	  dallas	Dallas laptops
-	  hp		HP TX1000
-	  auto		auto-config reading BIOS (default)
-
-	CMI9880
-	  minimal	3-jack in back
-	  min_fp	3-jack in back, 2-jack in front
-	  full		6-jack in back, 2-jack in front
-	  full_dig	6-jack in back, 2-jack in front, SPDIF I/O
-	  allout	5-jack in back, 2-jack in front, SPDIF out
-	  auto		auto-config reading BIOS (default)
-
-	AD1882 / AD1882A
-	  3stack	3-stack mode (default)
-	  6stack	6-stack mode
-
-	AD1884A / AD1883 / AD1984A / AD1984B
-	  desktop	3-stack desktop (default)
-	  laptop	laptop with HP jack sensing
-	  mobile	mobile devices with HP jack sensing
-	  thinkpad	Lenovo Thinkpad X300
-
-	AD1884
-	  N/A
-
-	AD1981
-	  basic		3-jack (default)
-	  hp		HP nx6320
-	  thinkpad	Lenovo Thinkpad T60/X60/Z60
-	  toshiba	Toshiba U205
-
-	AD1983
-	  N/A
-
-	AD1984
-	  basic		default configuration
-	  thinkpad	Lenovo Thinkpad T61/X61
-	  dell		Dell T3400
-
-	AD1986A
-	  6stack	6-jack, separate surrounds (default)
-	  3stack	3-stack, shared surrounds
-	  laptop	2-channel only (FSC V2060, Samsung M50)
-	  laptop-eapd	2-channel with EAPD (Samsung R65, ASUS A6J)
-	  laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100)
-	  ultra		2-channel with EAPD (Samsung Ultra tablet PC)
-
-	AD1988/AD1988B/AD1989A/AD1989B
-	  6stack	6-jack
-	  6stack-dig	ditto with SPDIF
-	  3stack	3-jack
-	  3stack-dig	ditto with SPDIF
-	  laptop	3-jack with hp-jack automute
-	  laptop-dig	ditto with SPDIF
-	  auto		auto-config reading BIOS (default)
-	
-	Conexant 5045
-	  laptop-hpsense    Laptop with HP sense (old model laptop)
-	  laptop-micsense   Laptop with Mic sense (old model fujitsu)
-	  laptop-hpmicsense Laptop with HP and Mic senses
-	  benq		Benq R55E
-	  test		for testing/debugging purpose, almost all controls
-			can be adjusted.  Appearing only when compiled with
-			$CONFIG_SND_DEBUG=y
-
-	Conexant 5047
-	  laptop	Basic Laptop config 
-	  laptop-hp	Laptop config for some HP models (subdevice 30A5)
-	  laptop-eapd	Laptop config with EAPD support
-	  test		for testing/debugging purpose, almost all controls
-			can be adjusted.  Appearing only when compiled with
-			$CONFIG_SND_DEBUG=y
-
-	Conexant 5051
-	  laptop	Basic Laptop config (default)
-	  hp		HP Spartan laptop
-
-	STAC9200
-	  ref		Reference board
-	  dell-d21	Dell (unknown)
-	  dell-d22	Dell (unknown)
-	  dell-d23	Dell (unknown)
-	  dell-m21	Dell Inspiron 630m, Dell Inspiron 640m
-	  dell-m22	Dell Latitude D620, Dell Latitude D820
-	  dell-m23	Dell XPS M1710, Dell Precision M90
-	  dell-m24	Dell Latitude 120L
-	  dell-m25	Dell Inspiron E1505n
-	  dell-m26	Dell Inspiron 1501
-	  dell-m27	Dell Inspiron E1705/9400
-	  gateway	Gateway laptops with EAPD control
-	  panasonic	Panasonic CF-74
-
-	STAC9205/9254
-	  ref		Reference board
-	  dell-m42	Dell (unknown)
-	  dell-m43	Dell Precision
-	  dell-m44	Dell Inspiron
-
-	STAC9220/9221
-	  ref		Reference board
-	  3stack	D945 3stack
-	  5stack	D945 5stack + SPDIF
-	  intel-mac-v1	Intel Mac Type 1
-	  intel-mac-v2	Intel Mac Type 2
-	  intel-mac-v3	Intel Mac Type 3
-	  intel-mac-v4	Intel Mac Type 4
-	  intel-mac-v5	Intel Mac Type 5
-	  intel-mac-auto Intel Mac (detect type according to subsystem id)
-	  macmini	Intel Mac Mini (equivalent with type 3)
-	  macbook	Intel Mac Book (eq. type 5)
-	  macbook-pro-v1 Intel Mac Book Pro 1st generation (eq. type 3)
-	  macbook-pro	Intel Mac Book Pro 2nd generation (eq. type 3)
-	  imac-intel	Intel iMac (eq. type 2)
-	  imac-intel-20	Intel iMac (newer version) (eq. type 3)
-	  dell-d81	Dell (unknown)
-	  dell-d82	Dell (unknown)
-	  dell-m81	Dell (unknown)
-	  dell-m82	Dell XPS M1210
-
-	STAC9202/9250/9251
-	  ref		Reference board, base config
-	  m2-2		Some Gateway MX series laptops
-	  m6		Some Gateway NX series laptops
-	  pa6		Gateway NX860 series
-
-	STAC9227/9228/9229/927x
-	  ref		Reference board
-	  ref-no-jd	Reference board without HP/Mic jack detection
-	  3stack	D965 3stack
-	  5stack	D965 5stack + SPDIF
-	  dell-3stack	Dell Dimension E520
-	  dell-bios	Fixes with Dell BIOS setup
-
-	STAC92HD71B*
-	  ref		Reference board
-	  dell-m4-1	Dell desktops
-	  dell-m4-2	Dell desktops
-	  dell-m4-3	Dell desktops
-
-	STAC92HD73*
-	  ref		Reference board
-	  no-jd		BIOS setup but without jack-detection
-	  dell-m6-amic	Dell desktops/laptops with analog mics
-	  dell-m6-dmic	Dell desktops/laptops with digital mics
-	  dell-m6	Dell desktops/laptops with both type of mics
-
-	STAC9872
-	  vaio		Setup for VAIO FE550G/SZ110
-	  vaio-ar Setup for VAIO AR
+    models depending on the codec chip.  The list of available models
+    is found in HD-Audio-Models.txt
 
     The model name "genric" is treated as a special case.  When this
     model is given, the driver uses the generic codec parser without
     "codec-patch".  It's sometimes good for testing and debugging.
 
     If the default configuration doesn't work and one of the above
-    matches with your device, report it together with the PCI
-    subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
+    matches with your device, report it together with alsa-info.sh
+    output (with --no-upload option) to kernel bugzilla or alsa-devel
     ML (see the section "Links and Addresses").
 
     power_save and power_save_controller options are for power-saving
@@ -2409,8 +2107,11 @@ Links and Addresses
   ALSA project homepage
        http://www.alsa-project.org
 
-  ALSA Bug Tracking System
-       https://bugtrack.alsa-project.org/bugs/
+  Kernel Bugzilla
+       http://bugzilla.kernel.org/
 
   ALSA Developers ML
        mailto:alsa-devel@alsa-project.org
+
+  alsa-info.sh script
+       http://www.alsa-project.org/alsa-info.sh
diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt
new file mode 100644
index 000000000000..4b7ac21ea9eb
--- /dev/null
+++ b/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -0,0 +1,348 @@
+  Model name	Description
+  ----------    -----------
+ALC880
+======
+  3stack	3-jack in back and a headphone out
+  3stack-digout	3-jack in back, a HP out and a SPDIF out
+  5stack	5-jack in back, 2-jack in front
+  5stack-digout	5-jack in back, 2-jack in front, a SPDIF out
+  6stack	6-jack in back, 2-jack in front
+  6stack-digout	6-jack with a SPDIF out
+  w810		3-jack
+  z71v		3-jack (HP shared SPDIF)
+  asus		3-jack (ASUS Mobo)
+  asus-w1v	ASUS W1V
+  asus-dig	ASUS with SPDIF out
+  asus-dig2	ASUS with SPDIF out (using GPIO2)
+  uniwill	3-jack
+  fujitsu	Fujitsu Laptops (Pi1536)
+  F1734		2-jack
+  lg		LG laptop (m1 express dual)
+  lg-lw		LG LW20/LW25 laptop
+  tcl		TCL S700
+  clevo		Clevo laptops (m520G, m665n)
+  medion	Medion Rim 2150
+  test		for testing/debugging purpose, almost all controls can be
+		adjusted.  Appearing only when compiled with
+		$CONFIG_SND_DEBUG=y
+  auto		auto-config reading BIOS (default)
+
+ALC260
+======
+  hp		HP machines
+  hp-3013	HP machines (3013-variant)
+  hp-dc7600	HP DC7600
+  fujitsu	Fujitsu S7020
+  acer		Acer TravelMate
+  will		Will laptops (PB V7900)
+  replacer	Replacer 672V
+  basic		fixed pin assignment (old default model)
+  test		for testing/debugging purpose, almost all controls can
+		adjusted.  Appearing only when compiled with
+		$CONFIG_SND_DEBUG=y
+  auto		auto-config reading BIOS (default)
+
+ALC262
+======
+  fujitsu	Fujitsu Laptop
+  hp-bpc	HP xw4400/6400/8400/9400 laptops
+  hp-bpc-d7000	HP BPC D7000
+  hp-tc-t5735	HP Thin Client T5735
+  hp-rp5700	HP RP5700
+  benq		Benq ED8
+  benq-t31	Benq T31
+  hippo		Hippo (ATI) with jack detection, Sony UX-90s
+  hippo_1	Hippo (Benq) with jack detection
+  sony-assamd	Sony ASSAMD
+  toshiba-s06	Toshiba S06
+  toshiba-rx1	Toshiba RX1
+  ultra		Samsung Q1 Ultra Vista model
+  lenovo-3000	Lenovo 3000 y410
+  nec		NEC Versa S9100
+  basic		fixed pin assignment w/o SPDIF
+  auto		auto-config reading BIOS (default)
+
+ALC267/268
+==========
+  quanta-il1	Quanta IL1 mini-notebook
+  3stack	3-stack model
+  toshiba	Toshiba A205
+  acer		Acer laptops
+  acer-dmic	Acer laptops with digital-mic
+  acer-aspire	Acer Aspire One
+  dell		Dell OEM laptops (Vostro 1200)
+  zepto		Zepto laptops
+  test		for testing/debugging purpose, almost all controls can
+		adjusted.  Appearing only when compiled with
+		$CONFIG_SND_DEBUG=y
+  auto		auto-config reading BIOS (default)
+
+ALC269
+======
+  basic		Basic preset
+  quanta	Quanta FL1
+  eeepc-p703	ASUS Eeepc P703 P900A
+  eeepc-p901	ASUS Eeepc P901 S101
+  fujitsu	FSC Amilo
+  auto		auto-config reading BIOS (default)
+
+ALC662/663
+==========
+  3stack-dig	3-stack (2-channel) with SPDIF
+  3stack-6ch	 3-stack (6-channel)
+  3stack-6ch-dig 3-stack (6-channel) with SPDIF
+  6stack-dig	 6-stack with SPDIF
+  lenovo-101e	 Lenovo laptop
+  eeepc-p701	ASUS Eeepc P701
+  eeepc-ep20	ASUS Eeepc EP20
+  ecs		ECS/Foxconn mobo
+  m51va		ASUS M51VA
+  g71v		ASUS G71V
+  h13		ASUS H13
+  g50v		ASUS G50V
+  asus-mode1	ASUS
+  asus-mode2	ASUS
+  asus-mode3	ASUS
+  asus-mode4	ASUS
+  asus-mode5	ASUS
+  asus-mode6	ASUS
+  auto		auto-config reading BIOS (default)
+
+ALC882/885
+==========
+  3stack-dig	3-jack with SPDIF I/O
+  6stack-dig	6-jack digital with SPDIF I/O
+  arima		Arima W820Di1
+  targa		Targa T8, MSI-1049 T8
+  asus-a7j	ASUS A7J
+  asus-a7m	ASUS A7M
+  macpro	MacPro support
+  mbp3		Macbook Pro rev3
+  imac24	iMac 24'' with jack detection
+  w2jc		ASUS W2JC
+  auto		auto-config reading BIOS (default)
+
+ALC883/888
+==========
+  3stack-dig	3-jack with SPDIF I/O
+  6stack-dig	6-jack digital with SPDIF I/O
+  3stack-6ch    3-jack 6-channel
+  3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
+  6stack-dig-demo  6-jack digital for Intel demo board
+  acer		Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
+  acer-aspire	Acer Aspire 9810
+  acer-aspire-4930g Acer Aspire 4930G
+  medion	Medion Laptops
+  medion-md2	Medion MD2
+  targa-dig	Targa/MSI
+  targa-2ch-dig	Targs/MSI with 2-channel
+  laptop-eapd   3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
+  lenovo-101e	Lenovo 101E
+  lenovo-nb0763	Lenovo NB0763
+  lenovo-ms7195-dig Lenovo MS7195
+  lenovo-sky	Lenovo Sky
+  haier-w66	Haier W66
+  3stack-hp	HP machines with 3stack (Lucknow, Samba boards)
+  6stack-dell	Dell machines with 6stack (Inspiron 530)
+  mitac		Mitac 8252D
+  clevo-m720	Clevo M720 laptop series
+  fujitsu-pi2515 Fujitsu AMILO Pi2515
+  fujitsu-xa3530 Fujitsu AMILO XA3530
+  3stack-6ch-intel Intel DG33* boards
+  auto		auto-config reading BIOS (default)
+
+ALC861/660
+==========
+  3stack	3-jack
+  3stack-dig	3-jack with SPDIF I/O
+  6stack-dig	6-jack with SPDIF I/O
+  3stack-660	3-jack (for ALC660)
+  uniwill-m31	Uniwill M31 laptop
+  toshiba	Toshiba laptop support
+  asus		Asus laptop support
+  asus-laptop	ASUS F2/F3 laptops
+  auto		auto-config reading BIOS (default)
+
+ALC861VD/660VD
+==============
+  3stack	3-jack
+  3stack-dig	3-jack with SPDIF OUT
+  6stack-dig	6-jack with SPDIF OUT
+  3stack-660	3-jack (for ALC660VD)
+  3stack-660-digout 3-jack with SPDIF OUT (for ALC660VD)
+  lenovo	Lenovo 3000 C200
+  dallas	Dallas laptops
+  hp		HP TX1000
+  asus-v1s	ASUS V1Sn
+  auto		auto-config reading BIOS (default)
+
+CMI9880
+=======
+  minimal	3-jack in back
+  min_fp	3-jack in back, 2-jack in front
+  full		6-jack in back, 2-jack in front
+  full_dig	6-jack in back, 2-jack in front, SPDIF I/O
+  allout	5-jack in back, 2-jack in front, SPDIF out
+  auto		auto-config reading BIOS (default)
+
+AD1882 / AD1882A
+================
+  3stack	3-stack mode (default)
+  6stack	6-stack mode
+
+AD1884A / AD1883 / AD1984A / AD1984B
+====================================
+  desktop	3-stack desktop (default)
+  laptop	laptop with HP jack sensing
+  mobile	mobile devices with HP jack sensing
+  thinkpad	Lenovo Thinkpad X300
+
+AD1884
+======
+  N/A
+
+AD1981
+======
+  basic		3-jack (default)
+  hp		HP nx6320
+  thinkpad	Lenovo Thinkpad T60/X60/Z60
+  toshiba	Toshiba U205
+
+AD1983
+======
+  N/A
+
+AD1984
+======
+  basic		default configuration
+  thinkpad	Lenovo Thinkpad T61/X61
+  dell		Dell T3400
+
+AD1986A
+=======
+  6stack	6-jack, separate surrounds (default)
+  3stack	3-stack, shared surrounds
+  laptop	2-channel only (FSC V2060, Samsung M50)
+  laptop-eapd	2-channel with EAPD (ASUS A6J)
+  laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100)
+  ultra		2-channel with EAPD (Samsung Ultra tablet PC)
+  samsung	2-channel with EAPD (Samsung R65)
+
+AD1988/AD1988B/AD1989A/AD1989B
+==============================
+  6stack	6-jack
+  6stack-dig	ditto with SPDIF
+  3stack	3-jack
+  3stack-dig	ditto with SPDIF
+  laptop	3-jack with hp-jack automute
+  laptop-dig	ditto with SPDIF
+  auto		auto-config reading BIOS (default)
+
+Conexant 5045
+=============
+  laptop-hpsense    Laptop with HP sense (old model laptop)
+  laptop-micsense   Laptop with Mic sense (old model fujitsu)
+  laptop-hpmicsense Laptop with HP and Mic senses
+  benq		Benq R55E
+  test		for testing/debugging purpose, almost all controls
+		can be adjusted.  Appearing only when compiled with
+		$CONFIG_SND_DEBUG=y
+
+Conexant 5047
+=============
+  laptop	Basic Laptop config 
+  laptop-hp	Laptop config for some HP models (subdevice 30A5)
+  laptop-eapd	Laptop config with EAPD support
+  test		for testing/debugging purpose, almost all controls
+		can be adjusted.  Appearing only when compiled with
+		$CONFIG_SND_DEBUG=y
+
+Conexant 5051
+=============
+  laptop	Basic Laptop config (default)
+  hp		HP Spartan laptop
+
+STAC9200
+========
+  ref		Reference board
+  dell-d21	Dell (unknown)
+  dell-d22	Dell (unknown)
+  dell-d23	Dell (unknown)
+  dell-m21	Dell Inspiron 630m, Dell Inspiron 640m
+  dell-m22	Dell Latitude D620, Dell Latitude D820
+  dell-m23	Dell XPS M1710, Dell Precision M90
+  dell-m24	Dell Latitude 120L
+  dell-m25	Dell Inspiron E1505n
+  dell-m26	Dell Inspiron 1501
+  dell-m27	Dell Inspiron E1705/9400
+  gateway	Gateway laptops with EAPD control
+  panasonic	Panasonic CF-74
+
+STAC9205/9254
+=============
+  ref		Reference board
+  dell-m42	Dell (unknown)
+  dell-m43	Dell Precision
+  dell-m44	Dell Inspiron
+
+STAC9220/9221
+=============
+  ref		Reference board
+  3stack	D945 3stack
+  5stack	D945 5stack + SPDIF
+  intel-mac-v1	Intel Mac Type 1
+  intel-mac-v2	Intel Mac Type 2
+  intel-mac-v3	Intel Mac Type 3
+  intel-mac-v4	Intel Mac Type 4
+  intel-mac-v5	Intel Mac Type 5
+  intel-mac-auto Intel Mac (detect type according to subsystem id)
+  macmini	Intel Mac Mini (equivalent with type 3)
+  macbook	Intel Mac Book (eq. type 5)
+  macbook-pro-v1 Intel Mac Book Pro 1st generation (eq. type 3)
+  macbook-pro	Intel Mac Book Pro 2nd generation (eq. type 3)
+  imac-intel	Intel iMac (eq. type 2)
+  imac-intel-20	Intel iMac (newer version) (eq. type 3)
+  dell-d81	Dell (unknown)
+  dell-d82	Dell (unknown)
+  dell-m81	Dell (unknown)
+  dell-m82	Dell XPS M1210
+
+STAC9202/9250/9251
+==================
+  ref		Reference board, base config
+  m2-2		Some Gateway MX series laptops
+  m6		Some Gateway NX series laptops
+  pa6		Gateway NX860 series
+
+STAC9227/9228/9229/927x
+=======================
+  ref		Reference board
+  ref-no-jd	Reference board without HP/Mic jack detection
+  3stack	D965 3stack
+  5stack	D965 5stack + SPDIF
+  dell-3stack	Dell Dimension E520
+  dell-bios	Fixes with Dell BIOS setup
+
+STAC92HD71B*
+============
+  ref		Reference board
+  dell-m4-1	Dell desktops
+  dell-m4-2	Dell desktops
+  dell-m4-3	Dell desktops
+
+STAC92HD73*
+===========
+  ref		Reference board
+  no-jd		BIOS setup but without jack-detection
+  dell-m6-amic	Dell desktops/laptops with analog mics
+  dell-m6-dmic	Dell desktops/laptops with digital mics
+  dell-m6	Dell desktops/laptops with both type of mics
+
+STAC92HD83*
+===========
+  ref		Reference board
+
+STAC9872
+========
+  vaio		Setup for VAIO FE550G/SZ110
+  vaio-ar Setup for VAIO AR
diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt
new file mode 100644
index 000000000000..8d68fff71839
--- /dev/null
+++ b/Documentation/sound/alsa/HD-Audio.txt
@@ -0,0 +1,577 @@
+MORE NOTES ON HD-AUDIO DRIVER
+=============================
+					Takashi Iwai <tiwai@suse.de>
+
+
+GENERAL
+-------
+
+HD-audio is the new standard on-board audio component on modern PCs
+after AC97.  Although Linux has been supporting HD-audio since long
+time ago, there are often problems with new machines.  A part of the
+problem is broken BIOS, and the rest is the driver implementation.
+This document explains the brief trouble-shooting and debugging
+methods for the	HD-audio hardware.
+
+The HD-audio component consists of two parts: the controller chip and 
+the codec chips on the HD-audio bus.  Linux provides a single driver
+for all controllers, snd-hda-intel.  Although the driver name contains
+a word of a well-known harware vendor, it's not specific to it but for
+all controller chips by other companies.  Since the HD-audio
+controllers are supposed to be compatible, the single snd-hda-driver
+should work in most cases.  But, not surprisingly, there are known
+bugs and issues specific to each controller type.  The snd-hda-intel
+driver has a bunch of workarounds for these as described below.
+
+A controller may have multiple codecs.  Usually you have one audio
+codec and optionally one modem codec.  In theory, there might be
+multiple audio codecs, e.g. for analog and digital outputs, and the
+driver might not work properly because of conflict of mixer elements.
+This should be fixed in future if such hardware really exists.
+
+The snd-hda-intel driver has several different codec parsers depending
+on the codec.  It has a generic parser as a fallback, but this
+functionality is fairly limited until now.  Instead of the generic
+parser, usually the codec-specific parser (coded in patch_*.c) is used
+for the codec-specific implementations.  The details about the
+codec-specific problems are explained in the later sections.
+
+If you are interested in the deep debugging of HD-audio, read the
+HD-audio specification at first.  The specification is found on
+Intel's web page, for example:
+
+- http://www.intel.com/standards/hdaudio/
+
+
+HD-AUDIO CONTROLLER
+-------------------
+
+DMA-Position Problem
+~~~~~~~~~~~~~~~~~~~~
+The most common problem of the controller is the inaccurate DMA
+pointer reporting.  The DMA pointer for playback and capture can be
+read in two ways, either via a LPIB register or via a position-buffer
+map.  As default the driver tries to read from the io-mapped
+position-buffer, and falls back to LPIB if the position-buffer appears
+dead.  However, this detection isn't perfect on some devices.  In such
+a case, you can change the default method via `position_fix` option.
+
+`position_fix=1` means to use LPIB method explicitly.
+`position_fix=2` means to use the position-buffer.  0 is the default
+value, the automatic check and fallback to LPIB as described in the
+above.  If you get a problem of repeated sounds, this option might
+help.
+
+In addition to that, every controller is known to be broken regarding
+the wake-up timing.  It wakes up a few samples before actually
+processing the data on the buffer.  This caused a lot of problems, for
+example, with ALSA dmix or JACK.  Since 2.6.27 kernel, the driver puts
+an artificial delay to the wake up timing.  This delay is controlled
+via `bdl_pos_adj` option. 
+
+When `bdl_pos_adj` is a negative value (as default), it's assigned to
+an appropriate value depending on the controller chip.  For Intel
+chips, it'd be 1 while it'd be 32 for others.  Usually this works.
+Only in case it doesn't work and you get warning messages, you should
+change this parameter to other values.
+
+
+Codec-Probing Problem
+~~~~~~~~~~~~~~~~~~~~~
+A less often but a more severe problem is the codec probing.  When
+BIOS reports the available codec slots wrongly, the driver gets
+confused and tries to access the non-existing codec slot.  This often
+results in the total screw-up, and destructs the further communication
+with the codec chips.  The symptom appears usually as error messages
+like:
+------------------------------------------------------------------------
+  hda_intel: azx_get_response timeout, switching to polling mode:
+        last cmd=0x12345678
+  hda_intel: azx_get_response timeout, switching to single_cmd mode:
+        last cmd=0x12345678
+------------------------------------------------------------------------
+
+The first line is a warning, and this is usually relatively harmless.
+It means that the codec response isn't notified via an IRQ.  The
+driver uses explicit polling method to read the response.  It gives
+very slight CPU overhead, but you'd unlikely notice it.
+
+The second line is, however, a fatal error.  If this happens, usually
+it means that something is really wrong.  Most likely you are
+accessing a non-existing codec slot.
+
+Thus, if the second error message appears, try to narrow the probed
+codec slots via `probe_mask` option.  It's a bitmask, and each bit
+corresponds to the codec slot.  For example, to probe only the first
+slot, pass `probe_mask=1`.  For the first and the third slots, pass
+`probe_mask=5` (where 5 = 1 | 4), and so on.
+
+Since 2.6.29 kernel, the driver has a more robust probing method, so
+this error might happen rarely, though.
+
+
+Interrupt Handling
+~~~~~~~~~~~~~~~~~~
+In rare but some cases, the interrupt isn't properly handled as
+default.  You would notice this by the DMA transfer error reported by
+ALSA PCM core, for example.  Using MSI might help in such a case.
+Pass `enable_msi=1` option for enabling MSI.
+
+
+HD-AUDIO CODEC
+--------------
+
+Model Option
+~~~~~~~~~~~~
+The most common problem regarding the HD-audio driver is the
+unsupported codec features or the mismatched device configuration.
+Most of codec-specific code has several preset models, either to
+override the BIOS setup or to provide more comprehensive features.
+
+The driver checks PCI SSID and looks through the static configuration
+table until any matching entry is found.  If you have a new machine,
+you may see a message like below:
+------------------------------------------------------------------------
+    hda_codec: Unknown model for ALC880, trying auto-probe from BIOS...
+------------------------------------------------------------------------
+Even if you see such a message, DON'T PANIC.  Take a deep breath and
+keep your towel.  First of all, it's an informational message, no
+warning, no error.  This means that the PCI SSID of your device isn't
+listed in the known preset model (white-)list.  But, this doesn't mean
+that the driver is broken.  Many codec-drivers provide the automatic
+configuration mechanism based on the BIOS setup.
+
+The HD-audio codec has usually "pin" widgets, and BIOS sets the default
+configuration of each pin, which indicates the location, the
+connection type, the jack color, etc.  The HD-audio driver can guess
+the right connection judging from these default configuration values.
+However -- some codec-support codes, such as patch_analog.c, don't
+support the automatic probing (yet as of 2.6.28).  And, BIOS is often,
+yes, pretty often broken.  It sets up wrong values and screws up the
+driver.
+
+The preset model is provided basically to overcome such a situation.
+When the matching preset model is found in the white-list, the driver
+assumes the static configuration of that preset and builds the mixer
+elements and PCM streams based on the static information.  Thus, if
+you have a newer machine with a slightly different PCI SSID from the
+existing one, you may have a good chance to re-use the same model.
+You can pass the `model` option to specify the preset model instead of
+PCI SSID look-up.
+
+What `model` option values are available depends on the codec chip.
+Check your codec chip from the codec proc file (see "Codec Proc-File"
+section below).  It will show the vendor/product name of your codec
+chip.  Then, see Documentation/sound/alsa/HD-Audio-Modelstxt file,
+the section of HD-audio driver.  You can find a list of codecs
+and `model` options belonging to each codec.  For example, for Realtek
+ALC262 codec chip, pass `model=ultra` for devices that are compatible
+with Samsung Q1 Ultra.
+
+Thus, the first thing you can do for any brand-new, unsupported and
+non-working HD-audio hardware is to check HD-audio codec and several
+different `model` option values.  If you have a luck, some of them
+might suit with your device well.
+
+Some codecs such as ALC880 have a special model option `model=test`.
+This configures the driver to provide as many mixer controls as
+possible for every single pin feature except for the unsolicited
+events (and maybe some other specials).  Adjust each mixer element and
+try the I/O in the way of trial-and-error until figuring out the whole
+I/O pin mappings.
+
+Note that `model=generic` has a special meaning.  It means to use the
+generic parser regardless of the codec.  Usually the codec-specific
+parser is much better than the generic parser (as now).  Thus this
+option is more about the debugging purpose.
+
+
+Speaker and Headphone Output
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+One of the most frequent (and obvious) bugs with HD-audio is the
+silent output from either or both of a built-in speaker and a
+headphone jack.  In general, you should try a headphone output at
+first.  A speaker output often requires more additional controls like
+the external amplifier bits.  Thus a headphone output has a slightly
+better chance.
+
+Before making a bug report, double-check whether the mixer is set up
+correctly.  The recent version of snd-hda-intel driver provides mostly
+"Master" volume control as well as "Front" volume (where Front
+indicates the front-channels).  In addition, there can be individual
+"Headphone" and "Speaker" controls.
+
+Ditto for the speaker output.  There can be "External Amplifier"
+switch on some codecs.  Turn on this if present.
+
+Another related problem is the automatic mute of speaker output by
+headphone plugging.  This feature is implemented in most cases, but
+not on every preset model or codec-support code.
+
+In anyway, try a different model option if you have such a problem.
+Some other models may match better and give you more matching
+functionality.  If none of the available models works, send a bug
+report.  See the bug report section for details.
+
+If you are masochistic enough to debug the driver problem, note the
+following:
+
+- The speaker (and the headphone, too) output often requires the
+  external amplifier.  This can be set usually via EAPD verb or a
+  certain GPIO.  If the codec pin supports EAPD, you have a better
+  chance via SET_EAPD_BTL verb (0x70c).  On others, GPIO pin (mostly
+  it's either GPIO0 or GPIO1) may turn on/off EAPD.
+- Some Realtek codecs require special vendor-specific coefficients to
+  turn on the amplifier.  See patch_realtek.c.
+- IDT codecs may have extra power-enable/disable controls on each
+  analog pin.  See patch_sigmatel.c.
+- Very rare but some devices don't accept the pin-detection verb until
+  triggered.  Issuing GET_PIN_SENSE verb (0xf09) may result in the
+  codec-communication stall.  Some examples are found in
+  patch_realtek.c.
+
+
+Capture Problems
+~~~~~~~~~~~~~~~~
+The capture problems are often because of missing setups of mixers.
+Thus, before submitting a bug report, make sure that you set up the
+mixer correctly.  For example, both "Capture Volume" and "Capture
+Switch" have to be set properly in addition to the right "Capture
+Source" or "Input Source" selection.  Some devices have "Mic Boost"
+volume or switch.
+
+When the PCM device is opened via "default" PCM (without pulse-audio
+plugin), you'll likely have "Digital Capture Volume" control as well.
+This is provided for the extra gain/attenuation of the signal in
+software, especially for the inputs without the hardware volume
+control such as digital microphones.  Unless really needed, this
+should be set to exactly 50%, corresponding to 0dB -- neither extra
+gain nor attenuation.  When you use "hw" PCM, i.e., a raw access PCM,
+this control will have no influence, though.
+
+It's known that some codecs / devices have fairly bad analog circuits,
+and the recorded sound contains a certain DC-offset.  This is no bug
+of the driver.
+
+Most of modern laptops have no analog CD-input connection.  Thus, the
+recording from CD input won't work in many cases although the driver
+provides it as the capture source.  Use CDDA instead.
+
+The automatic switching of the built-in and external mic per plugging
+is implemented on some codec models but not on every model.  Partly
+because of my laziness but mostly lack of testers.  Feel free to
+submit the improvement patch to the author.
+
+
+Direct Debugging
+~~~~~~~~~~~~~~~~
+If no model option gives you a better result, and you are a tough guy
+to fight against evil, try debugging via hitting the raw HD-audio
+codec verbs to the device.  Some tools are available: hda-emu and
+hda-analyzer.  The detailed description is found in the sections
+below.  You'd need to enable hwdep for using these tools.  See "Kernel
+Configuration" section.
+
+
+OTHER ISSUES
+------------
+
+Kernel Configuration
+~~~~~~~~~~~~~~~~~~~~
+In general, I recommend you to enable the sound debug option,
+`CONFIG_SND_DEBUG=y`, no matter whether you are debugging or not.
+This enables snd_printd() macro and others, and you'll get additional
+kernel messages at probing.
+
+In addition, you can enable `CONFIG_SND_DEBUG_VERBOSE=y`.  But this
+will give you far more messages.  Thus turn this on only when you are
+sure to want it.
+
+Don't forget to turn on the appropriate `CONFIG_SND_HDA_CODEC_*`
+options.  Note that each of them corresponds to the codec chip, not
+the controller chip.  Thus, even if lspci shows the Nvidia controller,
+you may need to choose the option for other vendors.  If you are
+unsure, just select all yes.
+
+`CONFIG_SND_HDA_HWDEP` is a useful option for debugging the driver.
+When this is enabled, the driver creates hardware-dependent devices
+(one per each codec), and you have a raw access to the device via
+these device files.  For example, `hwC0D2` will be created for the
+codec slot #2 of the first card (#0).  For debug-tools such as
+hda-verb and hda-analyzer, the hwdep device has to be enabled.
+Thus, it'd be better to turn this on always.
+
+`CONFIG_SND_HDA_RECONFIG` is a new option, and this depends on the
+hwdep option above.  When enabled, you'll have some sysfs files under
+the corresponding hwdep directory.  See "HD-audio reconfiguration"
+section below.
+
+`CONFIG_SND_HDA_POWER_SAVE` option enables the power-saving feature.
+See "Power-saving" section below.
+
+
+Codec Proc-File
+~~~~~~~~~~~~~~~
+The codec proc-file is a treasure-chest for debugging HD-audio.
+It shows most of useful information of each codec widget.
+
+The proc file is located in /proc/asound/card*/codec#*, one file per
+each codec slot.  You can know the codec vendor, product id and
+names, the type of each widget, capabilities and so on.
+This file, however, doesn't show the jack sensing state, so far.  This
+is because the jack-sensing might be depending on the trigger state.
+
+This file will be picked up by the debug tools, and also it can be fed
+to the emulator as the primary codec information.  See the debug tools
+section below.
+
+This proc file can be also used to check whether the generic parser is
+used.  When the generic parser is used, the vendor/product ID name
+will appear as "Realtek ID 0262", instead of "Realtek ALC262".
+
+
+HD-Audio Reconfiguration
+~~~~~~~~~~~~~~~~~~~~~~~~
+This is an experimental feature to allow you re-configure the HD-audio
+codec dynamically without reloading the driver.  The following sysfs
+files are available under each codec-hwdep device directory (e.g. 
+/sys/class/sound/hwC0D0):
+
+vendor_id::
+  Shows the 32bit codec vendor-id hex number.  You can change the
+  vendor-id value by writing to this file.
+subsystem_id::
+  Shows the 32bit codec subsystem-id hex number.  You can change the
+  subsystem-id value by writing to this file.
+revision_id::
+  Shows the 32bit codec revision-id hex number.  You can change the
+  revision-id value by writing to this file.
+afg::
+  Shows the AFG ID.  This is read-only.
+mfg::
+  Shows the MFG ID.  This is read-only.
+name::
+  Shows the codec name string.  Can be changed by writing to this
+  file.
+modelname::
+  Shows the currently set `model` option.  Can be changed by writing
+  to this file.
+init_verbs::
+  The extra verbs to execute at initialization.  You can add a verb by
+  writing to this file.  Pass tree numbers, nid, verb and parameter.
+hints::
+  Shows hint strings for codec parsers for any use.  Right now it's
+  not used.
+reconfig::
+  Triggers the codec re-configuration.  When any value is written to
+  this file, the driver re-initialize and parses the codec tree
+  again.  All the changes done by the sysfs entries above are taken
+  into account.
+clear::
+  Resets the codec, removes the mixer elements and PCM stuff of the
+  specified codec, and clear all init verbs and hints.
+
+
+Power-Saving
+~~~~~~~~~~~~
+The power-saving is a kind of auto-suspend of the device.  When the
+device is inactive for a certain time, the device is automatically
+turned off to save the power.  The time to go down is specified via
+`power_save` module option, and this option can be changed dynamically
+via sysfs.
+
+The power-saving won't work when the analog loopback is enabled on
+some codecs.  Make sure that you mute all unneeded signal routes when
+you want the power-saving.
+
+The power-saving feature might cause audible click noises at each
+power-down/up depending on the device.  Some of them might be
+solvable, but some are hard, I'm afraid.  Some distros such as
+openSUSE enables the power-saving feature automatically when the power
+cable is unplugged.  Thus, if you hear noises, suspect first the
+power-saving.  See /sys/module/snd_hda_intel/parameters/power_save to
+check the current value.  If it's non-zero, the feature is turned on.
+
+
+Development Tree
+~~~~~~~~~~~~~~~~
+The latest development codes for HD-audio are found on sound git tree:
+
+- git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git
+
+The master branch or for-next branches can be used as the main
+development branches in general while the HD-audio specific patches
+are committed in topic/hda branch.
+
+If you are using the latest Linus tree, it'd be better to pull the
+above GIT tree onto it.  If you are using the older kernels, an easy
+way to try the latest ALSA code is to build from the snapshot
+tarball.  There are daily tarballs and the latest snapshot tarball.
+All can be built just like normal alsa-driver release packages, that
+is, installed via the usual spells: configure, make and make
+install(-modules).  See INSTALL in the package.  The snapshot tarballs
+are found at:
+
+- ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/
+
+
+Sending a Bug Report
+~~~~~~~~~~~~~~~~~~~~
+If any model or module options don't work for your device, it's time
+to send a bug report to the developers.  Give the following in your
+bug report:
+
+- Hardware vendor, product and model names
+- Kernel version (and ALSA-driver version if you built externally)
+- `alsa-info.sh` output; run with `--no-upload` option.  See the
+  section below about alsa-info
+
+If it's a regression, at best, send alsa-info outputs of both working
+and non-working kernels.  This is really helpful because we can
+compare the codec registers directly.
+
+Send a bug report either the followings:
+
+kernel-bugzilla::
+  http://bugme.linux-foundation.org/
+alsa-devel ML::
+  alsa-devel@alsa-project.org
+
+
+DEBUG TOOLS
+-----------
+
+This section describes some tools available for debugging HD-audio
+problems.
+
+alsa-info
+~~~~~~~~~
+The script `alsa-info.sh` is a very useful tool to gather the audio
+device information.  You can fetch the latest version from:
+
+- http://www.alsa-project.org/alsa-info.sh
+
+Run this script as root, and it will gather the important information
+such as the module lists, module parameters, proc file contents
+including the codec proc files, mixer outputs and the control
+elements.  As default, it will store the information onto a web server
+on alsa-project.org.  But, if you send a bug report, it'd be better to
+run with `--no-upload` option, and attach the generated file.
+
+There are some other useful options.  See `--help` option output for
+details.
+
+
+hda-verb
+~~~~~~~~
+hda-verb is a tiny program that allows you to access the HD-audio
+codec directly.  You can execute a raw HD-audio codec verb with this.
+This program accesses the hwdep device, thus you need to enable the
+kernel config `CONFIG_SND_HDA_HWDEP=y` beforehand.
+
+The hda-verb program takes four arguments: the hwdep device file, the
+widget NID, the verb and the parameter.  When you access to the codec
+on the slot 2 of the card 0, pass /dev/snd/hwC0D2 to the first
+argument, typically.  (However, the real path name depends on the
+system.)
+
+The second parameter is the widget number-id to access.  The third
+parameter can be either a hex/digit number or a string corresponding
+to a verb.  Similarly, the last parameter is the value to write, or
+can be a string for the parameter type.
+
+------------------------------------------------------------------------
+  % hda-verb /dev/snd/hwC0D0 0x12 0x701 2
+  nid = 0x12, verb = 0x701, param = 0x2
+  value = 0x0
+
+  % hda-verb /dev/snd/hwC0D0 0x0 PARAMETERS VENDOR_ID
+  nid = 0x0, verb = 0xf00, param = 0x0
+  value = 0x10ec0262
+
+  % hda-verb /dev/snd/hwC0D0 2 set_a 0xb080
+  nid = 0x2, verb = 0x300, param = 0xb080
+  value = 0x0
+------------------------------------------------------------------------
+
+Although you can issue any verbs with this program, the driver state
+won't be always updated.  For example, the volume values are usually
+cached in the driver, and thus changing the widget amp value directly
+via hda-verb won't change the mixer value.
+
+The hda-verb program is found in the ftp directory:
+
+- ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/misc/
+
+Also a git repository is available:
+
+- git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/hda-verb.git
+
+See README file in the tarball for more details about hda-verb
+program.
+
+
+hda-analyzer
+~~~~~~~~~~~~
+hda-analyzer provides a graphical interface to access the raw HD-audio
+control, based on pyGTK2 binding.  It's a more powerful version of
+hda-verb.  The program gives you an easy-to-use GUI stuff for showing
+the widget information and adjusting the amp values, as well as the
+proc-compatible output.
+
+The hda-analyzer is a part of alsa.git repository in
+alsa-project.org:
+
+- http://git.alsa-project.org/?p=alsa.git;a=tree;f=hda-analyzer
+
+
+Codecgraph
+~~~~~~~~~~
+Codecgraph is a utility program to generate a graph and visualizes the
+codec-node connection of a codec chip.  It's especially useful when
+you analyze or debug a codec without a proper datasheet.  The program
+parses the given codec proc file and converts to SVG via graphiz
+program.
+
+The tarball and GIT trees are found in the web page at:
+
+- http://helllabs.org/codecgraph/
+
+
+hda-emu
+~~~~~~~
+hda-emu is an HD-audio emulator.  The main purpose of this program is
+to debug an HD-audio codec without the real hardware.  Thus, it
+doesn't emulate the behavior with the real audio I/O, but it just
+dumps the codec register changes and the ALSA-driver internal changes
+at probing and operating the HD-audio driver.
+
+The program requires a codec proc-file to simulate.  Get a proc file
+for the target codec beforehand, or pick up an example codec from the
+codec proc collections in the tarball.  Then, run the program with the
+proc file, and the hda-emu program will start parsing the codec file
+and simulates the HD-audio driver:
+
+------------------------------------------------------------------------
+  % hda-emu codecs/stac9200-dell-d820-laptop
+  # Parsing..
+  hda_codec: Unknown model for STAC9200, using BIOS defaults
+  hda_codec: pin nid 08 bios pin config 40c003fa
+  ....
+------------------------------------------------------------------------
+
+The program gives you only a very dumb command-line interface.  You
+can get a proc-file dump at the current state, get a list of control
+(mixer) elements, set/get the control element value, simulate the PCM
+operation, the jack plugging simulation, etc.
+
+The package is found in:
+
+- ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/misc/
+
+A git repository is available:
+
+- git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/hda-emu.git
+
+See README file in the tarball for more details about hda-emu
+program.
diff --git a/Documentation/sound/alsa/Procfile.txt b/Documentation/sound/alsa/Procfile.txt
index f738b296440a..bba2dbb79d81 100644
--- a/Documentation/sound/alsa/Procfile.txt
+++ b/Documentation/sound/alsa/Procfile.txt
@@ -153,6 +153,16 @@ card*/codec#*
 	Shows the general codec information and the attribute of each
 	widget node.
 
+card*/eld#*
+	Available for HDMI or DisplayPort interfaces.
+	Shows ELD(EDID Like Data) info retrieved from the attached HDMI sink,
+	and describes its audio capabilities and configurations.
+
+	Some ELD fields may be modified by doing `echo name hex_value > eld#*`.
+	Only do this if you are sure the HDMI sink provided value is wrong.
+	And if that makes your HDMI audio work, please report to us so that we
+	can fix it in future kernel releases.
+
 
 Sequencer Information
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