linux/sound/soc/Kconfig
Takashi Iwai fe0d128c57 ALSA: jack: Allow building the jack layer without input device
Since the recent integration of kctl jack and input jack layers, we
can basically build the jack layer even without input devices.  That
is, the jack layer itself can be built with conditional to enable the
input device support or not, while the users may enable always
CONFIG_SND_JACK unconditionally.

For achieving it, this patch changes the following:
- A new Kconfig, CONFIG_SND_JACK_INPUT_DEV, was introduced to indicate
  whether the jack layer supports the input device,
- A few items in snd_jack struct and relevant codes are conditionally
  built upon CONFIG_SND_JACK_INPUT_DEV,
- The users of CONFIG_SND_JACK drop the messy dependency on
  CONFIG_INPUT.

This change also automagically fixes a potential bug in HD-audio
driver Arnd reported, where the NULL or uninitialized jack instance is
dereferenced.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-23 09:03:07 +01:00

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#
# SoC audio configuration
#
menuconfig SND_SOC
tristate "ALSA for SoC audio support"
select SND_PCM
select AC97_BUS if SND_SOC_AC97_BUS
select SND_JACK
select REGMAP_I2C if I2C
select REGMAP_SPI if SPI_MASTER
---help---
If you want ASoC support, you should say Y here and also to the
specific driver for your SoC platform below.
ASoC provides power efficient ALSA support for embedded battery powered
SoC based systems like PDA's, Phones and Personal Media Players.
This ASoC audio support can also be built as a module. If so, the module
will be called snd-soc-core.
if SND_SOC
config SND_SOC_AC97_BUS
bool
config SND_SOC_GENERIC_DMAENGINE_PCM
bool
select SND_DMAENGINE_PCM
config SND_SOC_COMPRESS
bool
select SND_COMPRESS_OFFLOAD
config SND_SOC_TOPOLOGY
bool
# All the supported SoCs
source "sound/soc/adi/Kconfig"
source "sound/soc/amd/Kconfig"
source "sound/soc/atmel/Kconfig"
source "sound/soc/au1x/Kconfig"
source "sound/soc/bcm/Kconfig"
source "sound/soc/blackfin/Kconfig"
source "sound/soc/cirrus/Kconfig"
source "sound/soc/davinci/Kconfig"
source "sound/soc/dwc/Kconfig"
source "sound/soc/fsl/Kconfig"
source "sound/soc/jz4740/Kconfig"
source "sound/soc/nuc900/Kconfig"
source "sound/soc/omap/Kconfig"
source "sound/soc/kirkwood/Kconfig"
source "sound/soc/img/Kconfig"
source "sound/soc/intel/Kconfig"
source "sound/soc/mediatek/Kconfig"
source "sound/soc/mxs/Kconfig"
source "sound/soc/pxa/Kconfig"
source "sound/soc/qcom/Kconfig"
source "sound/soc/rockchip/Kconfig"
source "sound/soc/samsung/Kconfig"
source "sound/soc/sh/Kconfig"
source "sound/soc/sirf/Kconfig"
source "sound/soc/spear/Kconfig"
source "sound/soc/sti/Kconfig"
source "sound/soc/sunxi/Kconfig"
source "sound/soc/tegra/Kconfig"
source "sound/soc/txx9/Kconfig"
source "sound/soc/ux500/Kconfig"
source "sound/soc/xtensa/Kconfig"
source "sound/soc/zte/Kconfig"
# Supported codecs
source "sound/soc/codecs/Kconfig"
# generic frame-work
source "sound/soc/generic/Kconfig"
endif # SND_SOC