[RFC PATCH 05/12] ASoC: SOF: Intel: add build support for SoundWire

From: Pierre-Louis Bossart
Date: Mon Sep 16 2019 - 17:43:50 EST


Select SoundWire capabilities on newer Intel platforms, starting with
CannonLake/CoffeeLake/CometLake.

As done for HDaudio, the SoundWire link is an opt-in capability. We
explicitly test for ACPI to avoid warnings on unmet dependencies on
the SoundWire side.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/intel/Kconfig | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/sound/soc/sof/intel/Kconfig b/sound/soc/sof/intel/Kconfig
index 479ba249e219..1adff7be5b40 100644
--- a/sound/soc/sof/intel/Kconfig
+++ b/sound/soc/sof/intel/Kconfig
@@ -150,6 +150,7 @@ config SND_SOC_SOF_CANNONLAKE_SUPPORT
config SND_SOC_SOF_CANNONLAKE
tristate
select SND_SOC_SOF_HDA_COMMON
+ select SND_SOC_SOF_INTEL_SOUNDWIRE
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
@@ -165,6 +166,7 @@ config SND_SOC_SOF_COFFEELAKE_SUPPORT
config SND_SOC_SOF_COFFEELAKE
tristate
select SND_SOC_SOF_HDA_COMMON
+ select SND_SOC_SOF_INTEL_SOUNDWIRE
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
@@ -180,6 +182,7 @@ config SND_SOC_SOF_ICELAKE_SUPPORT
config SND_SOC_SOF_ICELAKE
tristate
select SND_SOC_SOF_HDA_COMMON
+ select SND_SOC_SOF_INTEL_SOUNDWIRE
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
@@ -187,6 +190,7 @@ config SND_SOC_SOF_ICELAKE
config SND_SOC_SOF_COMETLAKE_LP
tristate
select SND_SOC_SOF_HDA_COMMON
+ select SND_SOC_SOF_INTEL_SOUNDWIRE
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
@@ -202,6 +206,7 @@ config SND_SOC_SOF_COMETLAKE_LP_SUPPORT
config SND_SOC_SOF_COMETLAKE_H
tristate
select SND_SOC_SOF_HDA_COMMON
+ select SND_SOC_SOF_INTEL_SOUNDWIRE
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
@@ -225,6 +230,7 @@ config SND_SOC_SOF_TIGERLAKE_SUPPORT
config SND_SOC_SOF_TIGERLAKE
tristate
select SND_SOC_SOF_HDA_COMMON
+ select SND_SOC_SOF_INTEL_SOUNDWIRE
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
@@ -240,6 +246,7 @@ config SND_SOC_SOF_ELKHARTLAKE_SUPPORT
config SND_SOC_SOF_ELKHARTLAKE
tristate
select SND_SOC_SOF_HDA_COMMON
+ select SND_SOC_SOF_INTEL_SOUNDWIRE
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
@@ -291,6 +298,22 @@ config SND_SOC_SOF_HDA
This option is not user-selectable but automagically handled by
'select' statements at a higher level

+config SND_SOC_SOF_INTEL_SOUNDWIRE_LINK
+ bool "SOF support for SoundWire"
+ depends on SOUNDWIRE && ACPI
+ help
+ This adds support for SoundWire with Sound Open Firmware
+ for Intel(R) platforms.
+ Say Y if you want to enable SoundWire links with SOF.
+ If unsure select "N".
+
+config SND_SOC_SOF_INTEL_SOUNDWIRE
+ tristate
+ select SOUNDWIRE_INTEL if SND_SOC_SOF_INTEL_SOUNDWIRE_LINK
+ help
+ This option is not user-selectable but automagically handled by
+ 'select' statements at a higher level
+
endif ## SND_SOC_SOF_INTEL_PCI

endif ## SND_SOC_SOF_INTEL_TOPLEVEL
--
2.20.1