1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 menu "HD-Audio" 2 menu "HD-Audio"
3 3
4 config SND_HDA 4 config SND_HDA
5 tristate 5 tristate
6 select SND_PCM 6 select SND_PCM
7 select SND_VMASTER 7 select SND_VMASTER
8 select SND_JACK 8 select SND_JACK
9 select SND_HDA_CORE 9 select SND_HDA_CORE
10 10
11 config SND_HDA_GENERIC_LEDS 11 config SND_HDA_GENERIC_LEDS
12 bool 12 bool
13 13
14 config SND_HDA_INTEL 14 config SND_HDA_INTEL
15 tristate "HD Audio PCI" 15 tristate "HD Audio PCI"
16 depends on SND_PCI 16 depends on SND_PCI
17 select SND_HDA 17 select SND_HDA
18 select SND_INTEL_DSP_CONFIG 18 select SND_INTEL_DSP_CONFIG
19 help 19 help
20 Say Y here to include support for In 20 Say Y here to include support for Intel "High Definition
21 Audio" (Azalia) and its compatible d 21 Audio" (Azalia) and its compatible devices.
22 22
23 This option enables the HD-audio con 23 This option enables the HD-audio controller. Don't forget
24 to choose the appropriate codec opti 24 to choose the appropriate codec options below.
25 25
26 To compile this driver as a module, 26 To compile this driver as a module, choose M here: the module
27 will be called snd-hda-intel. 27 will be called snd-hda-intel.
28 28
29 config SND_HDA_TEGRA 29 config SND_HDA_TEGRA
30 tristate "NVIDIA Tegra HD Audio" 30 tristate "NVIDIA Tegra HD Audio"
31 depends on ARCH_TEGRA 31 depends on ARCH_TEGRA
32 select SND_HDA 32 select SND_HDA
33 select SND_HDA_ALIGNED_MMIO 33 select SND_HDA_ALIGNED_MMIO
34 help 34 help
35 Say Y here to support the HDA contro 35 Say Y here to support the HDA controller present in NVIDIA
36 Tegra SoCs 36 Tegra SoCs
37 37
38 This options enables support for the 38 This options enables support for the HD Audio controller
39 present in some NVIDIA Tegra SoCs, u 39 present in some NVIDIA Tegra SoCs, used to communicate audio
40 to the HDMI output. 40 to the HDMI output.
41 41
42 To compile this driver as a module, 42 To compile this driver as a module, choose M here: the module
43 will be called snd-hda-tegra. 43 will be called snd-hda-tegra.
44 44
45 if SND_HDA 45 if SND_HDA
46 46
47 config SND_HDA_HWDEP 47 config SND_HDA_HWDEP
48 bool "Build hwdep interface for HD-aud 48 bool "Build hwdep interface for HD-audio driver"
49 select SND_HWDEP 49 select SND_HWDEP
50 help 50 help
51 Say Y here to build a hwdep interfac 51 Say Y here to build a hwdep interface for HD-audio driver.
52 This interface can be used for out-o 52 This interface can be used for out-of-band communication
53 with codecs for debugging purposes. 53 with codecs for debugging purposes.
54 54
55 config SND_HDA_RECONFIG 55 config SND_HDA_RECONFIG
56 bool "Allow dynamic codec reconfigurat 56 bool "Allow dynamic codec reconfiguration"
57 help 57 help
58 Say Y here to enable the HD-audio co 58 Say Y here to enable the HD-audio codec re-configuration feature.
59 It allows user to clear the whole co 59 It allows user to clear the whole codec configuration, change the
60 codec setup, add extra verbs, and re 60 codec setup, add extra verbs, and re-configure the codec dynamically.
61 61
62 Note that this item alone doesn't pr 62 Note that this item alone doesn't provide the sysfs interface, but
63 enables the feature just for the pat 63 enables the feature just for the patch loader below.
64 If you need the traditional sysfs en 64 If you need the traditional sysfs entries for the manual interaction,
65 turn on CONFIG_SND_HDA_HWDEP as well 65 turn on CONFIG_SND_HDA_HWDEP as well.
66 66
67 config SND_HDA_INPUT_BEEP 67 config SND_HDA_INPUT_BEEP
68 bool "Support digital beep via input l 68 bool "Support digital beep via input layer"
69 depends on INPUT=y || INPUT=SND_HDA 69 depends on INPUT=y || INPUT=SND_HDA
70 help 70 help
71 Say Y here to build a digital beep i 71 Say Y here to build a digital beep interface for HD-audio
72 driver. This interface is used to ge 72 driver. This interface is used to generate digital beeps.
73 73
74 config SND_HDA_INPUT_BEEP_MODE 74 config SND_HDA_INPUT_BEEP_MODE
75 int "Digital beep registration mode (0 75 int "Digital beep registration mode (0=off, 1=on)"
76 depends on SND_HDA_INPUT_BEEP=y 76 depends on SND_HDA_INPUT_BEEP=y
77 default "1" 77 default "1"
78 range 0 1 78 range 0 1
79 help 79 help
80 Set 0 to disable the digital beep in 80 Set 0 to disable the digital beep interface for HD-audio by default.
81 Set 1 to always enable the digital b 81 Set 1 to always enable the digital beep interface for HD-audio by
82 default. 82 default.
83 83
84 config SND_HDA_PATCH_LOADER 84 config SND_HDA_PATCH_LOADER
85 bool "Support initialization patch loa 85 bool "Support initialization patch loading for HD-audio"
86 select FW_LOADER 86 select FW_LOADER
87 select SND_HDA_RECONFIG 87 select SND_HDA_RECONFIG
88 help 88 help
89 Say Y here to allow the HD-audio dri 89 Say Y here to allow the HD-audio driver to load a pseudo
90 firmware file ("patch") for overridi 90 firmware file ("patch") for overriding the BIOS setup at
91 start up. The "patch" file can be s 91 start up. The "patch" file can be specified via patch module
92 option, such as patch=hda-init. 92 option, such as patch=hda-init.
93 93
94 config SND_HDA_CIRRUS_SCODEC <<
95 tristate <<
96 <<
97 config SND_HDA_CIRRUS_SCODEC_KUNIT_TEST <<
98 tristate "KUnit test for Cirrus side-c <<
99 select SND_HDA_CIRRUS_SCODEC <<
100 select GPIOLIB <<
101 depends on KUNIT <<
102 default KUNIT_ALL_TESTS <<
103 help <<
104 This builds KUnit tests for the cirr <<
105 For more information on KUnit and un <<
106 please refer to the KUnit documentat <<
107 Documentation/dev-tools/kunit/. <<
108 If in doubt, say "N". <<
109 <<
110 config SND_HDA_SCODEC_CS35L41 94 config SND_HDA_SCODEC_CS35L41
111 tristate 95 tristate
112 select SND_HDA_GENERIC 96 select SND_HDA_GENERIC
113 select REGMAP_IRQ 97 select REGMAP_IRQ
114 98
115 config SND_HDA_CS_DSP_CONTROLS 99 config SND_HDA_CS_DSP_CONTROLS
116 tristate 100 tristate
117 select FW_CS_DSP 101 select FW_CS_DSP
118 102
119 config SND_HDA_SCODEC_COMPONENT <<
120 tristate <<
121 <<
122 config SND_HDA_SCODEC_CS35L41_I2C 103 config SND_HDA_SCODEC_CS35L41_I2C
123 tristate "Build CS35L41 HD-audio side 104 tristate "Build CS35L41 HD-audio side codec support for I2C Bus"
124 depends on I2C 105 depends on I2C
125 depends on ACPI 106 depends on ACPI
126 depends on EFI <<
127 depends on SND_SOC 107 depends on SND_SOC
128 select SND_SOC_CS35L41_LIB 108 select SND_SOC_CS35L41_LIB
129 select SND_HDA_SCODEC_CS35L41 109 select SND_HDA_SCODEC_CS35L41
130 select SND_HDA_CS_DSP_CONTROLS 110 select SND_HDA_CS_DSP_CONTROLS
131 select SND_SOC_CS_AMP_LIB <<
132 help 111 help
133 Say Y or M here to include CS35L41 I 112 Say Y or M here to include CS35L41 I2C HD-audio side codec support
134 in snd-hda-intel driver, such as ALC 113 in snd-hda-intel driver, such as ALC287.
135 114
136 comment "Set to Y if you want auto-loading the 115 comment "Set to Y if you want auto-loading the side codec driver"
137 depends on SND_HDA=y && SND_HDA_SCODEC 116 depends on SND_HDA=y && SND_HDA_SCODEC_CS35L41_I2C=m
138 117
139 config SND_HDA_SCODEC_CS35L41_SPI 118 config SND_HDA_SCODEC_CS35L41_SPI
140 tristate "Build CS35L41 HD-audio codec 119 tristate "Build CS35L41 HD-audio codec support for SPI Bus"
141 depends on SPI_MASTER 120 depends on SPI_MASTER
142 depends on ACPI 121 depends on ACPI
143 depends on EFI <<
144 depends on SND_SOC 122 depends on SND_SOC
145 select SND_SOC_CS35L41_LIB 123 select SND_SOC_CS35L41_LIB
146 select SND_HDA_SCODEC_CS35L41 124 select SND_HDA_SCODEC_CS35L41
147 select SND_HDA_CS_DSP_CONTROLS 125 select SND_HDA_CS_DSP_CONTROLS
148 select SND_SOC_CS_AMP_LIB <<
149 help 126 help
150 Say Y or M here to include CS35L41 S 127 Say Y or M here to include CS35L41 SPI HD-audio side codec support
151 in snd-hda-intel driver, such as ALC 128 in snd-hda-intel driver, such as ALC287.
152 129
153 comment "Set to Y if you want auto-loading the 130 comment "Set to Y if you want auto-loading the side codec driver"
154 depends on SND_HDA=y && SND_HDA_SCODEC 131 depends on SND_HDA=y && SND_HDA_SCODEC_CS35L41_SPI=m
155 132
156 config SND_HDA_SCODEC_CS35L56 <<
157 tristate <<
158 <<
159 config SND_HDA_SCODEC_CS35L56_I2C <<
160 tristate "Build CS35L56 HD-audio side <<
161 depends on I2C <<
162 depends on ACPI || COMPILE_TEST <<
163 depends on SND_SOC <<
164 select FW_CS_DSP <<
165 imply SERIAL_MULTI_INSTANTIATE <<
166 select SND_HDA_GENERIC <<
167 select SND_SOC_CS35L56_SHARED <<
168 select SND_HDA_SCODEC_CS35L56 <<
169 select SND_HDA_CIRRUS_SCODEC <<
170 select SND_HDA_CS_DSP_CONTROLS <<
171 select SND_SOC_CS_AMP_LIB <<
172 help <<
173 Say Y or M here to include CS35L56 a <<
174 I2C control. <<
175 <<
176 config SND_HDA_SCODEC_CS35L56_SPI <<
177 tristate "Build CS35L56 HD-audio side <<
178 depends on SPI_MASTER <<
179 depends on ACPI || COMPILE_TEST <<
180 depends on SND_SOC <<
181 select FW_CS_DSP <<
182 imply SERIAL_MULTI_INSTANTIATE <<
183 select SND_HDA_GENERIC <<
184 select SND_SOC_CS35L56_SHARED <<
185 select SND_HDA_SCODEC_CS35L56 <<
186 select SND_HDA_CIRRUS_SCODEC <<
187 select SND_HDA_CS_DSP_CONTROLS <<
188 select SND_SOC_CS_AMP_LIB <<
189 help <<
190 Say Y or M here to include CS35L56 a <<
191 SPI control. <<
192 <<
193 config SND_HDA_SCODEC_TAS2781_I2C <<
194 tristate "Build TAS2781 HD-audio side <<
195 depends on I2C <<
196 depends on ACPI <<
197 depends on EFI <<
198 depends on SND_SOC <<
199 select SND_SOC_TAS2781_COMLIB <<
200 select SND_SOC_TAS2781_FMWLIB <<
201 select CRC32 <<
202 help <<
203 Say Y or M here to include TAS2781 I <<
204 in snd-hda-intel driver, such as ALC <<
205 <<
206 comment "Set to Y if you want auto-loading the <<
207 depends on SND_HDA=y && SND_HDA_SCODEC <<
208 <<
209 config SND_HDA_CODEC_REALTEK 133 config SND_HDA_CODEC_REALTEK
210 tristate "Build Realtek HD-audio codec 134 tristate "Build Realtek HD-audio codec support"
211 select SND_HDA_GENERIC 135 select SND_HDA_GENERIC
212 select SND_HDA_GENERIC_LEDS 136 select SND_HDA_GENERIC_LEDS
213 select SND_HDA_SCODEC_COMPONENT <<
214 help 137 help
215 Say Y or M here to include Realtek H 138 Say Y or M here to include Realtek HD-audio codec support in
216 snd-hda-intel driver, such as ALC880 139 snd-hda-intel driver, such as ALC880.
217 140
218 comment "Set to Y if you want auto-loading the 141 comment "Set to Y if you want auto-loading the codec driver"
219 depends on SND_HDA=y && SND_HDA_CODEC_ 142 depends on SND_HDA=y && SND_HDA_CODEC_REALTEK=m
220 143
221 config SND_HDA_CODEC_ANALOG 144 config SND_HDA_CODEC_ANALOG
222 tristate "Build Analog Devices HD-audi 145 tristate "Build Analog Devices HD-audio codec support"
223 select SND_HDA_GENERIC 146 select SND_HDA_GENERIC
224 help 147 help
225 Say Y or M here to include Analog De 148 Say Y or M here to include Analog Devices HD-audio codec support in
226 snd-hda-intel driver, such as AD1986 149 snd-hda-intel driver, such as AD1986A.
227 150
228 comment "Set to Y if you want auto-loading the 151 comment "Set to Y if you want auto-loading the codec driver"
229 depends on SND_HDA=y && SND_HDA_CODEC_ 152 depends on SND_HDA=y && SND_HDA_CODEC_ANALOG=m
230 153
231 config SND_HDA_CODEC_SIGMATEL 154 config SND_HDA_CODEC_SIGMATEL
232 tristate "Build IDT/Sigmatel HD-audio 155 tristate "Build IDT/Sigmatel HD-audio codec support"
233 select SND_HDA_GENERIC 156 select SND_HDA_GENERIC
234 select SND_HDA_GENERIC_LEDS 157 select SND_HDA_GENERIC_LEDS
235 help 158 help
236 Say Y or M here to include IDT (Sigm 159 Say Y or M here to include IDT (Sigmatel) HD-audio codec support in
237 snd-hda-intel driver, such as STAC92 160 snd-hda-intel driver, such as STAC9200.
238 161
239 comment "Set to Y if you want auto-loading the 162 comment "Set to Y if you want auto-loading the codec driver"
240 depends on SND_HDA=y && SND_HDA_CODEC_ 163 depends on SND_HDA=y && SND_HDA_CODEC_SIGMATEL=m
241 164
242 config SND_HDA_CODEC_VIA 165 config SND_HDA_CODEC_VIA
243 tristate "Build VIA HD-audio codec sup 166 tristate "Build VIA HD-audio codec support"
244 select SND_HDA_GENERIC 167 select SND_HDA_GENERIC
245 help 168 help
246 Say Y or M here to include VIA HD-au 169 Say Y or M here to include VIA HD-audio codec support in
247 snd-hda-intel driver, such as VT1708 170 snd-hda-intel driver, such as VT1708.
248 171
249 comment "Set to Y if you want auto-loading the 172 comment "Set to Y if you want auto-loading the codec driver"
250 depends on SND_HDA=y && SND_HDA_CODEC_ 173 depends on SND_HDA=y && SND_HDA_CODEC_VIA=m
251 174
252 config SND_HDA_CODEC_HDMI 175 config SND_HDA_CODEC_HDMI
253 tristate "Build HDMI/DisplayPort HD-au 176 tristate "Build HDMI/DisplayPort HD-audio codec support"
254 select SND_DYNAMIC_MINORS 177 select SND_DYNAMIC_MINORS
255 help 178 help
256 Say Y or M here to include HDMI and 179 Say Y or M here to include HDMI and DisplayPort HD-audio codec
257 support in snd-hda-intel driver. Th 180 support in snd-hda-intel driver. This includes all AMD/ATI,
258 Intel and Nvidia HDMI/DisplayPort co 181 Intel and Nvidia HDMI/DisplayPort codecs.
259 182
260 Note that this option mandatorily en 183 Note that this option mandatorily enables CONFIG_SND_DYNAMIC_MINORS
261 to assure the multiple streams for D 184 to assure the multiple streams for DP-MST support.
262 185
263 comment "Set to Y if you want auto-loading the 186 comment "Set to Y if you want auto-loading the codec driver"
264 depends on SND_HDA=y && SND_HDA_CODEC_ 187 depends on SND_HDA=y && SND_HDA_CODEC_HDMI=m
265 188
266 config SND_HDA_CODEC_CIRRUS 189 config SND_HDA_CODEC_CIRRUS
267 tristate "Build Cirrus Logic codec sup 190 tristate "Build Cirrus Logic codec support"
268 select SND_HDA_GENERIC 191 select SND_HDA_GENERIC
269 help 192 help
270 Say Y or M here to include Cirrus Lo 193 Say Y or M here to include Cirrus Logic codec support in
271 snd-hda-intel driver, such as CS4206 194 snd-hda-intel driver, such as CS4206.
272 195
273 comment "Set to Y if you want auto-loading the 196 comment "Set to Y if you want auto-loading the codec driver"
274 depends on SND_HDA=y && SND_HDA_CODEC_ 197 depends on SND_HDA=y && SND_HDA_CODEC_CIRRUS=m
275 198
276 config SND_HDA_CODEC_CS8409 199 config SND_HDA_CODEC_CS8409
277 tristate "Build Cirrus Logic HDA bridg 200 tristate "Build Cirrus Logic HDA bridge support"
278 select SND_HDA_GENERIC 201 select SND_HDA_GENERIC
279 help 202 help
280 Say Y or M here to include Cirrus Lo 203 Say Y or M here to include Cirrus Logic HDA bridge support in
281 snd-hda-intel driver, such as CS8409 204 snd-hda-intel driver, such as CS8409.
282 205
283 comment "Set to Y if you want auto-loading the 206 comment "Set to Y if you want auto-loading the codec driver"
284 depends on SND_HDA=y && SND_HDA_CODEC_ 207 depends on SND_HDA=y && SND_HDA_CODEC_CS8409=m
285 208
286 config SND_HDA_CODEC_CONEXANT 209 config SND_HDA_CODEC_CONEXANT
287 tristate "Build Conexant HD-audio code 210 tristate "Build Conexant HD-audio codec support"
288 select SND_HDA_GENERIC 211 select SND_HDA_GENERIC
289 select SND_HDA_GENERIC_LEDS 212 select SND_HDA_GENERIC_LEDS
290 help 213 help
291 Say Y or M here to include Conexant 214 Say Y or M here to include Conexant HD-audio codec support in
292 snd-hda-intel driver, such as CX2054 215 snd-hda-intel driver, such as CX20549.
293 216
294 comment "Set to Y if you want auto-loading the 217 comment "Set to Y if you want auto-loading the codec driver"
295 depends on SND_HDA=y && SND_HDA_CODEC_ 218 depends on SND_HDA=y && SND_HDA_CODEC_CONEXANT=m
296 <<
297 config SND_HDA_CODEC_SENARYTECH <<
298 tristate "Build Senarytech HD-audio co <<
299 select SND_HDA_GENERIC <<
300 select SND_HDA_GENERIC_LEDS <<
301 help <<
302 Say Y or M here to include Senarytec <<
303 snd-hda-intel driver, such as SN6186 <<
304 <<
305 comment "Set to Y if you want auto-loading the <<
306 depends on SND_HDA=y && SND_HDA_CODEC_ <<
307 219
308 config SND_HDA_CODEC_CA0110 220 config SND_HDA_CODEC_CA0110
309 tristate "Build Creative CA0110-IBG co 221 tristate "Build Creative CA0110-IBG codec support"
310 select SND_HDA_GENERIC 222 select SND_HDA_GENERIC
311 help 223 help
312 Say Y or M here to include Creative 224 Say Y or M here to include Creative CA0110-IBG codec support in
313 snd-hda-intel driver, found on some 225 snd-hda-intel driver, found on some Creative X-Fi cards.
314 226
315 comment "Set to Y if you want auto-loading the 227 comment "Set to Y if you want auto-loading the codec driver"
316 depends on SND_HDA=y && SND_HDA_CODEC_ 228 depends on SND_HDA=y && SND_HDA_CODEC_CA0110=m
317 229
318 config SND_HDA_CODEC_CA0132 230 config SND_HDA_CODEC_CA0132
319 tristate "Build Creative CA0132 codec 231 tristate "Build Creative CA0132 codec support"
320 help 232 help
321 Say Y or M here to include Creative 233 Say Y or M here to include Creative CA0132 codec support in
322 snd-hda-intel driver. 234 snd-hda-intel driver.
323 235
324 comment "Set to Y if you want auto-loading the 236 comment "Set to Y if you want auto-loading the codec driver"
325 depends on SND_HDA=y && SND_HDA_CODEC_ 237 depends on SND_HDA=y && SND_HDA_CODEC_CA0132=m
326 238
327 config SND_HDA_CODEC_CA0132_DSP 239 config SND_HDA_CODEC_CA0132_DSP
328 bool "Support new DSP code for CA0132 240 bool "Support new DSP code for CA0132 codec"
329 depends on SND_HDA_CODEC_CA0132 241 depends on SND_HDA_CODEC_CA0132
330 default y 242 default y
331 select SND_HDA_DSP_LOADER 243 select SND_HDA_DSP_LOADER
332 select FW_LOADER 244 select FW_LOADER
333 help 245 help
334 Say Y here to enable the DSP for Cre 246 Say Y here to enable the DSP for Creative CA0132 for extended
335 features like equalizer or echo canc 247 features like equalizer or echo cancellation.
336 248
337 Note that this option requires the e 249 Note that this option requires the external firmware file
338 (ctefx.bin). 250 (ctefx.bin).
339 251
340 config SND_HDA_CODEC_CMEDIA 252 config SND_HDA_CODEC_CMEDIA
341 tristate "Build C-Media HD-audio codec 253 tristate "Build C-Media HD-audio codec support"
342 select SND_HDA_GENERIC 254 select SND_HDA_GENERIC
343 help 255 help
344 Say Y or M here to include C-Media H 256 Say Y or M here to include C-Media HD-audio codec support in
345 snd-hda-intel driver, such as CMI988 257 snd-hda-intel driver, such as CMI9880.
346 258
347 comment "Set to Y if you want auto-loading the 259 comment "Set to Y if you want auto-loading the codec driver"
348 depends on SND_HDA=y && SND_HDA_CODEC_ 260 depends on SND_HDA=y && SND_HDA_CODEC_CMEDIA=m
349 261
350 config SND_HDA_CODEC_SI3054 262 config SND_HDA_CODEC_SI3054
351 tristate "Build Silicon Labs 3054 HD-m 263 tristate "Build Silicon Labs 3054 HD-modem codec support"
352 help 264 help
353 Say Y or M here to include Silicon L 265 Say Y or M here to include Silicon Labs 3054 HD-modem codec
354 (and compatibles) support in snd-hda 266 (and compatibles) support in snd-hda-intel driver.
355 267
356 comment "Set to Y if you want auto-loading the 268 comment "Set to Y if you want auto-loading the codec driver"
357 depends on SND_HDA=y && SND_HDA_CODEC_ 269 depends on SND_HDA=y && SND_HDA_CODEC_SI3054=m
358 270
359 config SND_HDA_GENERIC 271 config SND_HDA_GENERIC
360 tristate "Enable generic HD-audio code 272 tristate "Enable generic HD-audio codec parser"
361 select SND_CTL_LED if SND_HDA_GENERIC_ 273 select SND_CTL_LED if SND_HDA_GENERIC_LEDS
362 select LEDS_CLASS if SND_HDA_GENERIC_L 274 select LEDS_CLASS if SND_HDA_GENERIC_LEDS
363 help 275 help
364 Say Y or M here to enable the generi 276 Say Y or M here to enable the generic HD-audio codec parser
365 in snd-hda-intel driver. 277 in snd-hda-intel driver.
366 278
367 comment "Set to Y if you want auto-loading the 279 comment "Set to Y if you want auto-loading the codec driver"
368 depends on SND_HDA=y && SND_HDA_GENERI 280 depends on SND_HDA=y && SND_HDA_GENERIC=m
369 281
370 config SND_HDA_POWER_SAVE_DEFAULT 282 config SND_HDA_POWER_SAVE_DEFAULT
371 int "Default time-out for HD-audio pow 283 int "Default time-out for HD-audio power-save mode"
372 depends on PM 284 depends on PM
373 default 0 285 default 0
374 help 286 help
375 The default time-out value in second 287 The default time-out value in seconds for HD-audio automatic
376 power-save mode. 0 means to disable 288 power-save mode. 0 means to disable the power-save mode.
377 289
378 config SND_HDA_INTEL_HDMI_SILENT_STREAM 290 config SND_HDA_INTEL_HDMI_SILENT_STREAM
379 bool "Enable Silent Stream always for 291 bool "Enable Silent Stream always for HDMI"
380 depends on SND_HDA_INTEL 292 depends on SND_HDA_INTEL
381 help 293 help
382 Say Y to enable HD-Audio Keep Alive 294 Say Y to enable HD-Audio Keep Alive (KAE) aka Silent Stream
383 for HDMI on hardware that supports t 295 for HDMI on hardware that supports the feature.
384 296
385 When enabled, the HDMI/DisplayPort c 297 When enabled, the HDMI/DisplayPort codec will continue to provide
386 a continuous clock and a valid but s 298 a continuous clock and a valid but silent data stream to
387 any connected external receiver. Thi 299 any connected external receiver. This allows to avoid gaps
388 at start of playback. Many receivers 300 at start of playback. Many receivers require multiple seconds
389 to start playing audio after the clo 301 to start playing audio after the clock has been stopped.
390 This feature can impact power consum 302 This feature can impact power consumption as resources
391 are kept reserved both at transmitte 303 are kept reserved both at transmitter and receiver.
392 304
393 config SND_HDA_CTL_DEV_ID 305 config SND_HDA_CTL_DEV_ID
394 bool "Use the device identifier field 306 bool "Use the device identifier field for controls"
395 depends on SND_HDA_INTEL 307 depends on SND_HDA_INTEL
396 help 308 help
397 Say Y to use the device identifier f 309 Say Y to use the device identifier field for (mixer)
398 controls (old behaviour until this o 310 controls (old behaviour until this option is available).
399 311
400 When enabled, the multiple HDA codec 312 When enabled, the multiple HDA codecs may set the device
401 field in control (mixer) element ide 313 field in control (mixer) element identifiers. The use
402 of this field is not recommended and 314 of this field is not recommended and defined for mixer controls.
403 315
404 The old behaviour (Y) is obsolete an 316 The old behaviour (Y) is obsolete and will be removed. Consider
405 to not enable this option. 317 to not enable this option.
406 318
407 endif 319 endif
408 320
409 endmenu 321 endmenu
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