staging: unisys: Rework Kconfig dependencies

I find the Kconfig dependencies of the various Unisys drivers rather
confusing. Due to the dependencies, you must select the drivers one by
one to see the following ones. So if you are looking for a specific
driver, it is not visible by default. And if you don't know exactly
what you need, it's even worse as you don't know what is available.

In a case like this with several helper drivers and many dependencies,
I think it makes more sense to list all the drivers at first, and use
select statements to fulfill the dependencies for the user.

As a nice side effect, it avoids the weird indentation, which was
technically correct but still somewhat confusing.

I also dropped the dependencies on HAS_IOMEM, as the whole driver set
is for X86_64 only anyway which always has HAS_IOMEM set. And I
dropped the redundant dependencies on UNISYSSPAR as all drivers are
already inside an "if UNISYSSPAR" block.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Benjamin Romer <benjamin.romer@unisys.com>
Cc: David Kershner <david.kershner@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/uislib/Kconfig

@@ -4,7 +4,7 @@
 
 config UNISYS_UISLIB
 	tristate "Unisys uislib driver"
-	depends on UNISYSSPAR && UNISYS_VISORCHIPSET && HAS_IOMEM
+	select UNISYS_VISORCHIPSET
 	---help---
 	If you say Y here, you will enable the Unisys uislib driver.
 

drivers/staging/unisys/virthba/Kconfig

@@ -4,7 +4,10 @@
 
 config UNISYS_VIRTHBA
 	tristate "Unisys virthba driver"
-	depends on UNISYSSPAR && UNISYS_VISORCHIPSET && UNISYS_UISLIB && UNISYS_VIRTPCI && SCSI
+	depends on SCSI
+	select UNISYS_VISORCHIPSET
+	select UNISYS_UISLIB
+	select UNISYS_VIRTPCI
 	---help---
 	If you say Y here, you will enable the Unisys virthba driver.
 

drivers/staging/unisys/virtpci/Kconfig

@@ -4,7 +4,7 @@
 
 config UNISYS_VIRTPCI
 	tristate "Unisys virtpci driver"
-	depends on UNISYSSPAR && UNISYS_UISLIB
+	select UNISYS_UISLIB
 	---help---
 	If you say Y here, you will enable the Unisys virtpci driver.
 

drivers/staging/unisys/visorchannel/Kconfig

@@ -4,7 +4,7 @@
 
 config UNISYS_VISORCHANNEL
 	tristate "Unisys visorchannel driver"
-	depends on UNISYSSPAR && UNISYS_VISORUTIL
+	select UNISYS_VISORUTIL
 	---help---
 	If you say Y here, you will enable the Unisys visorchannel driver.
 

drivers/staging/unisys/visorchipset/Kconfig

@@ -4,7 +4,8 @@
 
 config UNISYS_VISORCHIPSET
 	tristate "Unisys visorchipset driver"
-	depends on UNISYSSPAR && UNISYS_VISORUTIL && UNISYS_VISORCHANNEL && HAS_IOMEM
+	select UNISYS_VISORUTIL
+	select UNISYS_VISORCHANNEL
 	---help---
 	If you say Y here, you will enable the Unisys visorchipset driver.
 

drivers/staging/unisys/visorutil/Kconfig

@@ -4,7 +4,6 @@
 
 config UNISYS_VISORUTIL
 	tristate "Unisys visorutil driver"
-	depends on UNISYSSPAR && HAS_IOMEM
 	---help---
 	If you say Y here, you will enable the Unisys visorutil driver.