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 <<
113 select REGMAP_IRQ <<
114 <<
115 config SND_HDA_CS_DSP_CONTROLS <<
116 tristate <<
117 select FW_CS_DSP <<
118 <<
119 config SND_HDA_SCODEC_COMPONENT <<
120 tristate <<
121 96
122 config SND_HDA_SCODEC_CS35L41_I2C 97 config SND_HDA_SCODEC_CS35L41_I2C
123 tristate "Build CS35L41 HD-audio side 98 tristate "Build CS35L41 HD-audio side codec support for I2C Bus"
124 depends on I2C 99 depends on I2C
125 depends on ACPI 100 depends on ACPI
126 depends on EFI <<
127 depends on SND_SOC 101 depends on SND_SOC
>> 102 select SND_HDA_GENERIC
128 select SND_SOC_CS35L41_LIB 103 select SND_SOC_CS35L41_LIB
129 select SND_HDA_SCODEC_CS35L41 104 select SND_HDA_SCODEC_CS35L41
130 select SND_HDA_CS_DSP_CONTROLS !! 105 select REGMAP_IRQ
131 select SND_SOC_CS_AMP_LIB <<
132 help 106 help
133 Say Y or M here to include CS35L41 I 107 Say Y or M here to include CS35L41 I2C HD-audio side codec support
134 in snd-hda-intel driver, such as ALC 108 in snd-hda-intel driver, such as ALC287.
135 109
136 comment "Set to Y if you want auto-loading the 110 comment "Set to Y if you want auto-loading the side codec driver"
137 depends on SND_HDA=y && SND_HDA_SCODEC 111 depends on SND_HDA=y && SND_HDA_SCODEC_CS35L41_I2C=m
138 112
139 config SND_HDA_SCODEC_CS35L41_SPI 113 config SND_HDA_SCODEC_CS35L41_SPI
140 tristate "Build CS35L41 HD-audio codec 114 tristate "Build CS35L41 HD-audio codec support for SPI Bus"
141 depends on SPI_MASTER 115 depends on SPI_MASTER
142 depends on ACPI 116 depends on ACPI
143 depends on EFI <<
144 depends on SND_SOC 117 depends on SND_SOC
>> 118 select SND_HDA_GENERIC
145 select SND_SOC_CS35L41_LIB 119 select SND_SOC_CS35L41_LIB
146 select SND_HDA_SCODEC_CS35L41 120 select SND_HDA_SCODEC_CS35L41
147 select SND_HDA_CS_DSP_CONTROLS !! 121 select REGMAP_IRQ
148 select SND_SOC_CS_AMP_LIB <<
149 help 122 help
150 Say Y or M here to include CS35L41 S 123 Say Y or M here to include CS35L41 SPI HD-audio side codec support
151 in snd-hda-intel driver, such as ALC 124 in snd-hda-intel driver, such as ALC287.
152 125
153 comment "Set to Y if you want auto-loading the 126 comment "Set to Y if you want auto-loading the side codec driver"
154 depends on SND_HDA=y && SND_HDA_SCODEC 127 depends on SND_HDA=y && SND_HDA_SCODEC_CS35L41_SPI=m
155 128
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 129 config SND_HDA_CODEC_REALTEK
210 tristate "Build Realtek HD-audio codec 130 tristate "Build Realtek HD-audio codec support"
211 select SND_HDA_GENERIC 131 select SND_HDA_GENERIC
212 select SND_HDA_GENERIC_LEDS 132 select SND_HDA_GENERIC_LEDS
213 select SND_HDA_SCODEC_COMPONENT <<
214 help 133 help
215 Say Y or M here to include Realtek H 134 Say Y or M here to include Realtek HD-audio codec support in
216 snd-hda-intel driver, such as ALC880 135 snd-hda-intel driver, such as ALC880.
217 136
218 comment "Set to Y if you want auto-loading the 137 comment "Set to Y if you want auto-loading the codec driver"
219 depends on SND_HDA=y && SND_HDA_CODEC_ 138 depends on SND_HDA=y && SND_HDA_CODEC_REALTEK=m
220 139
221 config SND_HDA_CODEC_ANALOG 140 config SND_HDA_CODEC_ANALOG
222 tristate "Build Analog Devices HD-audi 141 tristate "Build Analog Devices HD-audio codec support"
223 select SND_HDA_GENERIC 142 select SND_HDA_GENERIC
224 help 143 help
225 Say Y or M here to include Analog De 144 Say Y or M here to include Analog Devices HD-audio codec support in
226 snd-hda-intel driver, such as AD1986 145 snd-hda-intel driver, such as AD1986A.
227 146
228 comment "Set to Y if you want auto-loading the 147 comment "Set to Y if you want auto-loading the codec driver"
229 depends on SND_HDA=y && SND_HDA_CODEC_ 148 depends on SND_HDA=y && SND_HDA_CODEC_ANALOG=m
230 149
231 config SND_HDA_CODEC_SIGMATEL 150 config SND_HDA_CODEC_SIGMATEL
232 tristate "Build IDT/Sigmatel HD-audio 151 tristate "Build IDT/Sigmatel HD-audio codec support"
233 select SND_HDA_GENERIC 152 select SND_HDA_GENERIC
234 select SND_HDA_GENERIC_LEDS 153 select SND_HDA_GENERIC_LEDS
235 help 154 help
236 Say Y or M here to include IDT (Sigm 155 Say Y or M here to include IDT (Sigmatel) HD-audio codec support in
237 snd-hda-intel driver, such as STAC92 156 snd-hda-intel driver, such as STAC9200.
238 157
239 comment "Set to Y if you want auto-loading the 158 comment "Set to Y if you want auto-loading the codec driver"
240 depends on SND_HDA=y && SND_HDA_CODEC_ 159 depends on SND_HDA=y && SND_HDA_CODEC_SIGMATEL=m
241 160
242 config SND_HDA_CODEC_VIA 161 config SND_HDA_CODEC_VIA
243 tristate "Build VIA HD-audio codec sup 162 tristate "Build VIA HD-audio codec support"
244 select SND_HDA_GENERIC 163 select SND_HDA_GENERIC
245 help 164 help
246 Say Y or M here to include VIA HD-au 165 Say Y or M here to include VIA HD-audio codec support in
247 snd-hda-intel driver, such as VT1708 166 snd-hda-intel driver, such as VT1708.
248 167
249 comment "Set to Y if you want auto-loading the 168 comment "Set to Y if you want auto-loading the codec driver"
250 depends on SND_HDA=y && SND_HDA_CODEC_ 169 depends on SND_HDA=y && SND_HDA_CODEC_VIA=m
251 170
252 config SND_HDA_CODEC_HDMI 171 config SND_HDA_CODEC_HDMI
253 tristate "Build HDMI/DisplayPort HD-au 172 tristate "Build HDMI/DisplayPort HD-audio codec support"
254 select SND_DYNAMIC_MINORS 173 select SND_DYNAMIC_MINORS
255 help 174 help
256 Say Y or M here to include HDMI and 175 Say Y or M here to include HDMI and DisplayPort HD-audio codec
257 support in snd-hda-intel driver. Th 176 support in snd-hda-intel driver. This includes all AMD/ATI,
258 Intel and Nvidia HDMI/DisplayPort co 177 Intel and Nvidia HDMI/DisplayPort codecs.
259 178
260 Note that this option mandatorily en 179 Note that this option mandatorily enables CONFIG_SND_DYNAMIC_MINORS
261 to assure the multiple streams for D 180 to assure the multiple streams for DP-MST support.
262 181
263 comment "Set to Y if you want auto-loading the 182 comment "Set to Y if you want auto-loading the codec driver"
264 depends on SND_HDA=y && SND_HDA_CODEC_ 183 depends on SND_HDA=y && SND_HDA_CODEC_HDMI=m
265 184
266 config SND_HDA_CODEC_CIRRUS 185 config SND_HDA_CODEC_CIRRUS
267 tristate "Build Cirrus Logic codec sup 186 tristate "Build Cirrus Logic codec support"
268 select SND_HDA_GENERIC 187 select SND_HDA_GENERIC
269 help 188 help
270 Say Y or M here to include Cirrus Lo 189 Say Y or M here to include Cirrus Logic codec support in
271 snd-hda-intel driver, such as CS4206 190 snd-hda-intel driver, such as CS4206.
272 191
273 comment "Set to Y if you want auto-loading the 192 comment "Set to Y if you want auto-loading the codec driver"
274 depends on SND_HDA=y && SND_HDA_CODEC_ 193 depends on SND_HDA=y && SND_HDA_CODEC_CIRRUS=m
275 194
276 config SND_HDA_CODEC_CS8409 195 config SND_HDA_CODEC_CS8409
277 tristate "Build Cirrus Logic HDA bridg 196 tristate "Build Cirrus Logic HDA bridge support"
278 select SND_HDA_GENERIC 197 select SND_HDA_GENERIC
279 help 198 help
280 Say Y or M here to include Cirrus Lo 199 Say Y or M here to include Cirrus Logic HDA bridge support in
281 snd-hda-intel driver, such as CS8409 200 snd-hda-intel driver, such as CS8409.
282 201
283 comment "Set to Y if you want auto-loading the 202 comment "Set to Y if you want auto-loading the codec driver"
284 depends on SND_HDA=y && SND_HDA_CODEC_ 203 depends on SND_HDA=y && SND_HDA_CODEC_CS8409=m
285 204
286 config SND_HDA_CODEC_CONEXANT 205 config SND_HDA_CODEC_CONEXANT
287 tristate "Build Conexant HD-audio code 206 tristate "Build Conexant HD-audio codec support"
288 select SND_HDA_GENERIC 207 select SND_HDA_GENERIC
289 select SND_HDA_GENERIC_LEDS 208 select SND_HDA_GENERIC_LEDS
290 help 209 help
291 Say Y or M here to include Conexant 210 Say Y or M here to include Conexant HD-audio codec support in
292 snd-hda-intel driver, such as CX2054 211 snd-hda-intel driver, such as CX20549.
293 212
294 comment "Set to Y if you want auto-loading the 213 comment "Set to Y if you want auto-loading the codec driver"
295 depends on SND_HDA=y && SND_HDA_CODEC_ 214 depends on SND_HDA=y && SND_HDA_CODEC_CONEXANT=m
296 215
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 <<
308 config SND_HDA_CODEC_CA0110 216 config SND_HDA_CODEC_CA0110
309 tristate "Build Creative CA0110-IBG co 217 tristate "Build Creative CA0110-IBG codec support"
310 select SND_HDA_GENERIC 218 select SND_HDA_GENERIC
311 help 219 help
312 Say Y or M here to include Creative 220 Say Y or M here to include Creative CA0110-IBG codec support in
313 snd-hda-intel driver, found on some 221 snd-hda-intel driver, found on some Creative X-Fi cards.
314 222
315 comment "Set to Y if you want auto-loading the 223 comment "Set to Y if you want auto-loading the codec driver"
316 depends on SND_HDA=y && SND_HDA_CODEC_ 224 depends on SND_HDA=y && SND_HDA_CODEC_CA0110=m
317 225
318 config SND_HDA_CODEC_CA0132 226 config SND_HDA_CODEC_CA0132
319 tristate "Build Creative CA0132 codec 227 tristate "Build Creative CA0132 codec support"
320 help 228 help
321 Say Y or M here to include Creative 229 Say Y or M here to include Creative CA0132 codec support in
322 snd-hda-intel driver. 230 snd-hda-intel driver.
323 231
324 comment "Set to Y if you want auto-loading the 232 comment "Set to Y if you want auto-loading the codec driver"
325 depends on SND_HDA=y && SND_HDA_CODEC_ 233 depends on SND_HDA=y && SND_HDA_CODEC_CA0132=m
326 234
327 config SND_HDA_CODEC_CA0132_DSP 235 config SND_HDA_CODEC_CA0132_DSP
328 bool "Support new DSP code for CA0132 236 bool "Support new DSP code for CA0132 codec"
329 depends on SND_HDA_CODEC_CA0132 237 depends on SND_HDA_CODEC_CA0132
330 default y 238 default y
331 select SND_HDA_DSP_LOADER 239 select SND_HDA_DSP_LOADER
332 select FW_LOADER 240 select FW_LOADER
333 help 241 help
334 Say Y here to enable the DSP for Cre 242 Say Y here to enable the DSP for Creative CA0132 for extended
335 features like equalizer or echo canc 243 features like equalizer or echo cancellation.
336 244
337 Note that this option requires the e 245 Note that this option requires the external firmware file
338 (ctefx.bin). 246 (ctefx.bin).
339 247
340 config SND_HDA_CODEC_CMEDIA 248 config SND_HDA_CODEC_CMEDIA
341 tristate "Build C-Media HD-audio codec 249 tristate "Build C-Media HD-audio codec support"
342 select SND_HDA_GENERIC 250 select SND_HDA_GENERIC
343 help 251 help
344 Say Y or M here to include C-Media H 252 Say Y or M here to include C-Media HD-audio codec support in
345 snd-hda-intel driver, such as CMI988 253 snd-hda-intel driver, such as CMI9880.
346 254
347 comment "Set to Y if you want auto-loading the 255 comment "Set to Y if you want auto-loading the codec driver"
348 depends on SND_HDA=y && SND_HDA_CODEC_ 256 depends on SND_HDA=y && SND_HDA_CODEC_CMEDIA=m
349 257
350 config SND_HDA_CODEC_SI3054 258 config SND_HDA_CODEC_SI3054
351 tristate "Build Silicon Labs 3054 HD-m 259 tristate "Build Silicon Labs 3054 HD-modem codec support"
352 help 260 help
353 Say Y or M here to include Silicon L 261 Say Y or M here to include Silicon Labs 3054 HD-modem codec
354 (and compatibles) support in snd-hda 262 (and compatibles) support in snd-hda-intel driver.
355 263
356 comment "Set to Y if you want auto-loading the 264 comment "Set to Y if you want auto-loading the codec driver"
357 depends on SND_HDA=y && SND_HDA_CODEC_ 265 depends on SND_HDA=y && SND_HDA_CODEC_SI3054=m
358 266
359 config SND_HDA_GENERIC 267 config SND_HDA_GENERIC
360 tristate "Enable generic HD-audio code 268 tristate "Enable generic HD-audio codec parser"
361 select SND_CTL_LED if SND_HDA_GENERIC_ 269 select SND_CTL_LED if SND_HDA_GENERIC_LEDS
362 select LEDS_CLASS if SND_HDA_GENERIC_L 270 select LEDS_CLASS if SND_HDA_GENERIC_LEDS
363 help 271 help
364 Say Y or M here to enable the generi 272 Say Y or M here to enable the generic HD-audio codec parser
365 in snd-hda-intel driver. 273 in snd-hda-intel driver.
366 274
367 comment "Set to Y if you want auto-loading the 275 comment "Set to Y if you want auto-loading the codec driver"
368 depends on SND_HDA=y && SND_HDA_GENERI 276 depends on SND_HDA=y && SND_HDA_GENERIC=m
369 277
370 config SND_HDA_POWER_SAVE_DEFAULT 278 config SND_HDA_POWER_SAVE_DEFAULT
371 int "Default time-out for HD-audio pow 279 int "Default time-out for HD-audio power-save mode"
372 depends on PM 280 depends on PM
373 default 0 281 default 0
374 help 282 help
375 The default time-out value in second 283 The default time-out value in seconds for HD-audio automatic
376 power-save mode. 0 means to disable 284 power-save mode. 0 means to disable the power-save mode.
377 285
378 config SND_HDA_INTEL_HDMI_SILENT_STREAM 286 config SND_HDA_INTEL_HDMI_SILENT_STREAM
379 bool "Enable Silent Stream always for 287 bool "Enable Silent Stream always for HDMI"
380 depends on SND_HDA_INTEL 288 depends on SND_HDA_INTEL
381 help 289 help
382 Say Y to enable HD-Audio Keep Alive 290 Say Y to enable HD-Audio Keep Alive (KAE) aka Silent Stream
383 for HDMI on hardware that supports t 291 for HDMI on hardware that supports the feature.
384 292
385 When enabled, the HDMI/DisplayPort c 293 When enabled, the HDMI/DisplayPort codec will continue to provide
386 a continuous clock and a valid but s 294 a continuous clock and a valid but silent data stream to
387 any connected external receiver. Thi 295 any connected external receiver. This allows to avoid gaps
388 at start of playback. Many receivers 296 at start of playback. Many receivers require multiple seconds
389 to start playing audio after the clo 297 to start playing audio after the clock has been stopped.
390 This feature can impact power consum 298 This feature can impact power consumption as resources
391 are kept reserved both at transmitte 299 are kept reserved both at transmitter and receiver.
392 <<
393 config SND_HDA_CTL_DEV_ID <<
394 bool "Use the device identifier field <<
395 depends on SND_HDA_INTEL <<
396 help <<
397 Say Y to use the device identifier f <<
398 controls (old behaviour until this o <<
399 <<
400 When enabled, the multiple HDA codec <<
401 field in control (mixer) element ide <<
402 of this field is not recommended and <<
403 <<
404 The old behaviour (Y) is obsolete an <<
405 to not enable this option. <<
406 300
407 endif 301 endif
408 302
409 endmenu 303 endmenu
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