[RFC][PATCH] b43: drop SSB dependency

["Rafał Miłecki" <zajec5@gmail.com>]

This adds choice submenu "Supported bus types" as two simple bool
configs would allow user to compile b43 without any bus support
(prety useless).

Signed-off-by: Rafa? Mi?ecki <zajec5@gmail.com>
---
I'm far from being a Kconfig expert, so a detailed review is more than welcome.
---
 drivers/net/wireless/b43/Kconfig | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index ce937a9..9c5898d 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -1,7 +1,6 @@
 config B43
 	tristate "Broadcom 43xx wireless support (mac80211 stack)"
-	depends on SSB_POSSIBLE && MAC80211 && HAS_DMA
-	select SSB
+	depends on (BCMA_POSSIBLE || SSB_POSSIBLE) && MAC80211 && HAS_DMA
 	select FW_LOADER
 	---help---
 	  b43 is a driver for the Broadcom 43xx series wireless devices.
@@ -27,14 +26,35 @@ config B43
 	  If unsure, say M.
 
 config B43_BCMA
-	bool "Support for BCMA bus"
-	depends on B43 && (BCMA = y || BCMA = B43)
-	default y
+	bool
+	depends on B43
 
 config B43_SSB
 	bool
-	depends on B43 && (SSB = y || SSB = B43)
-	default y
+	depends on B43
+
+choice
+	prompt "Supported bus types"
+	depends on B43
+	default B43_BCMA_AND_SSB
+
+config B43_BUSES_BCMA_AND_SSB
+	bool "BCMA and SSB"
+	depends on BCMA_POSSIBLE && SSB_POSSIBLE
+	select B43_BCMA
+	select B43_SSB
+
+config B43_BUSES_BCMA
+	bool "BCMA only"
+	depends on BCMA_POSSIBLE
+	select B43_BCMA
+
+config B43_BUSES_SSB
+	bool "SSB only"
+	depends on SSB_POSSIBLE
+	select B43_SSB
+
+endchoice
 
 # Auto-select SSB PCI-HOST support, if possible
 config B43_PCI_AUTOSELECT
@@ -98,7 +118,7 @@ config B43_BCMA_PIO
 
 config B43_PIO
 	bool
-	depends on B43
+	depends on B43 && B43_SSB
 	select SSB_BLOCKIO
 	default y
 
-- 
1.8.4.5