[RFC PATCH 3/7] ASoC: Intel: document what Kconfig options do

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

Document 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 | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 175b2965ca21..136426d60da0 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -15,16 +15,30 @@ if SND_SOC_INTEL_SST_TOPLEVEL
 
 config SND_SST_IPC
 	tristate
+	help
+	  This option controls the IPC core for HiFi2 platforms
 
 config SND_SST_IPC_PCI
 	tristate
 	select SND_SST_IPC
+	help
+	  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
+	help
+	 This option controls the ACPI-based IPC for HiFi2 platforms
+	 (Baytrail, Cherrytrail)
+
+config SND_SOC_INTEL_SST_ACPI
+	tristate
+	help
+	  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
@@ -33,9 +47,9 @@ config SND_SOC_INTEL_SST
 config SND_SOC_INTEL_SST_FIRMWARE
 	tristate
 	select DW_DMAC_CORE
-
-config SND_SOC_INTEL_SST_ACPI
-	tristate
+	help
+	  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