29a269c6f5
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>
1.3 KiB
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