The first patch implements what Linus, Takashi and Mark requested: a top-level selector defaulting to 'y' to easily filter all other options and with no impact on code generation. There should be no functionality change and will avoid breaking audio for people using make oldnoconfig.
The rest of the patch series does a more in-depth cleanup. It was tested on Baytrail/Cherrytrail/Skylake platforms with no regressions observed and no reports of any compilation issues with 0-day or randconfig.
The 4th patch is really the most important one, there were nested configs which made no sense to me. I don't know the history which led to such complicated stuff but simpler is better.
The last 3 patches are just clean-ups of the machine driver configs, for some reason there is no consistency in the settings so I tried to apply common sense and use the same rules. At Andy Shevchenko's suggestion, I also replaced the broken dependency on X86_INTEL_LPSS by MFD_INTEL_LPSS for Skylake+ machines, which looks ok but needs to be tested further, hence the RFCv2 status (this change is fine for Chrome, Ubuntu and other distros but better be cautious with a second set of tests with randconfig and on Skylake)
Changes since initial RFC: Removed default n Added help text for HASWELL, BAYTRAIL (legacy) and SKYLAKE options Made top level machine driver selection dependent on INTEL_SST_TOPLEVEL. Added help text for PCI and HIFI2 platforms Replaced X86_INTEL_LPSS by MFD_INTEL_LPSS for Skylake+ devices Fixed a couple of indentation issues
Pierre-Louis Bossart (7): ASoC: Intel: Fix Kconfig with top-level selector ASoC: Intel: Kconfig: Simplify-clarify ACPI/PCI dependencies ASoC: Intel: document what Kconfig options do ASoC: Intel: Fix nested/unnecessary Kconfig dependencies ASoC: Intel: boards: align Kconfig dependencies for Haswell/Broadwell ASoC: Intel: boards: align Kconfig configurations for HiFi2 ASoC: Intel: boards: align/fix SKL/BXT/KBL Kconfigs
sound/soc/intel/Kconfig | 118 +++++++++++++++++++++++-------- sound/soc/intel/boards/Kconfig | 155 ++++++++++++++++++++++------------------- 2 files changed, 172 insertions(+), 101 deletions(-)