[PATCH v2 4/9] ASoC: Intel: document what Kconfig options do

[Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>]

Document in comments what the options are supposed to mean, before
clean-up in next patch.

No functionality change here.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/intel/Kconfig | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 16374576cb6e..01b75df6b118 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -16,16 +16,27 @@ if SND_SOC_INTEL_SST_TOPLEVEL
 
 config SND_SST_IPC
 	tristate
+	# This option controls the IPC core for HiFi2 platforms
 
 config SND_SST_IPC_PCI
 	tristate
 	select SND_SST_IPC
+	# This option controls the PCI-based IPC for HiFi2 platforms
+	#  (Medfield, Merrifield).
 
 config SND_SST_IPC_ACPI
 	tristate
 	select SND_SST_IPC
 	select SND_SOC_INTEL_SST
 	select IOSF_MBI
+	# This option controls the ACPI-based IPC for HiFi2 platforms
+	# (Baytrail, Cherrytrail)
+
+config SND_SOC_INTEL_SST_ACPI
+	tristate
+	# This option controls ACPI-based probing on
+	# Haswell/Broadwell/Baytrail legacy and will be set
+	# when these platforms are enabled
 
 config SND_SOC_INTEL_SST
 	tristate
@@ -34,9 +45,9 @@ config SND_SOC_INTEL_SST
 config SND_SOC_INTEL_SST_FIRMWARE
 	tristate
 	select DW_DMAC_CORE
-
-config SND_SOC_INTEL_SST_ACPI
-	tristate
+	# This option controls firmware download on
+	# Haswell/Broadwell/Baytrail legacy and will be set
+	# when these platforms are enabled
 
 config SND_SOC_INTEL_HASWELL
 	tristate "Intel ASoC SST driver for Haswell/Broadwell"
-- 
2.14.1