linux/drivers/soundwire/Kconfig
Pierre-Louis Bossart 29a269c6f5 soundwire: intel: move to auxiliary bus
Now that the auxiliary_bus exists, there's no reason to use platform
devices as children of a PCI device any longer.

This patch refactors the code by extending a basic auxiliary device
with Intel link-specific structures that need to be passed between
controller and link levels. This refactoring is much cleaner with no
need for cross-pointers between device and link structures.

Note that the auxiliary bus API has separate init and add steps, which
requires more attention in the error unwinding paths. The main loop
needs to deal with kfree() and auxiliary_device_uninit() for the
current iteration before jumping to the common label which releases
everything allocated in prior iterations.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20210511052132.28150-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-06-14 10:12:26 +05:30

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# SPDX-License-Identifier: GPL-2.0-only
#
# SoundWire subsystem configuration
#
menuconfig SOUNDWIRE
tristate "SoundWire support"
depends on ACPI || OF
help
SoundWire is a 2-Pin interface with data and clock line ratified
by the MIPI Alliance. SoundWire is used for transporting data
typically related to audio functions. SoundWire interface is
optimized to integrate audio devices in mobile or mobile inspired
systems. Say Y to enable this subsystem, N if you do not have such
a device
if SOUNDWIRE
comment "SoundWire Devices"
config SOUNDWIRE_CADENCE
tristate
config SOUNDWIRE_INTEL
tristate "Intel SoundWire Master driver"
select SOUNDWIRE_CADENCE
select SOUNDWIRE_GENERIC_ALLOCATION
select AUXILIARY_BUS
depends on ACPI && SND_SOC
help
SoundWire Intel Master driver.
If you have an Intel platform which has a SoundWire Master then
enable this config option to get the SoundWire support for that
device.
config SOUNDWIRE_QCOM
tristate "Qualcomm SoundWire Master driver"
imply SLIMBUS
depends on SND_SOC
help
SoundWire Qualcomm Master driver.
If you have an Qualcomm platform which has a SoundWire Master then
enable this config option to get the SoundWire support for that
device
config SOUNDWIRE_GENERIC_ALLOCATION
tristate
endif