mfd: remove CONFIG_MFD_SUPPORT

We currently have two symbols to control compilation the MFD subsystem,
MFD_SUPPORT and MFD_CORE. The MFD_SUPPORT is actually not required
at all, it only hides the submenu when not set, with the effect that
Kconfig warns about missing dependencies when another driver selects
an MFD driver while MFD_SUPPORT is disabled. Turning the MFD submenu
back from menuconfig into a plain menu simplifies the Kconfig syntax
for those kinds of users and avoids the surprise when the menu
suddenly appears because another driver was enabled that selects this
symbol.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

4 files changed, 5 insertions, 22 deletions

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index d539efd96d4..fbc5fd449a0 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -180,7 +180,7 @@ config GPIO_SCH
 
 config GPIO_VX855
         tristate "VIA VX855/VX875 GPIO"
-        depends on MFD_SUPPORT && PCI
+        depends on PCI
         select MFD_CORE
         select MFD_VX855
         help
@@ -417,7 +417,6 @@ config GPIO_TIMBERDALE
 config GPIO_RDC321X
         tristate "RDC R-321x GPIO support"
         depends on PCI
-        select MFD_SUPPORT
         select MFD_CORE
         select MFD_RDC321X
         help
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 646068e5100..d625a484fa8 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -110,7 +110,6 @@ config I2C_I801
 config I2C_ISCH
         tristate "Intel SCH SMBus 1.0"
         depends on PCI
-        select MFD_CORE
         select LPC_SCH
         help
           Say Y here if you want to use SMBus controller on the Intel SCH
diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 52798a111e1..ccd5f0d8a01 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -426,7 +426,6 @@ config RADIO_TIMBERDALE
 config RADIO_WL1273
         tristate "Texas Instruments WL1273 I2C FM Radio"
         depends on I2C && VIDEO_V4L2
-        select MFD_CORE
         select MFD_WL1273_CORE
         select FW_LOADER
         ---help---
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 9c1347dc7a4..ac8bd4feb04 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -2,23 +2,8 @@
 # Multifunction miscellaneous devices
 #
 
-menuconfig MFD_SUPPORT
-        bool "Multifunction device drivers"
-        depends on HAS_IOMEM
-        default y
-        help
-          Multifunction devices embed several functions (e.g. GPIOs,
-          touchscreens, keyboards, current regulators, power management chips,
-          etc...) in one single integrated circuit. They usually talk to the
-          main CPU through one or more IRQ lines and low speed data busses (SPI,
-          I2C, etc..). They appear as one single device to the main system
-          through the data bus and the MFD framework allows for sub devices
-          (a.k.a. functions) to appear as discrete platform devices.
-          MFDs are typically found on embedded platforms.
-
-          This option alone does not add any kernel code.
-
-if MFD_SUPPORT
+if HAS_IOMEM
+menu "Multifunction device drivers"
 
 config MFD_CORE
         tristate
@@ -772,7 +757,8 @@ config MFD_AAT2870_CORE
           additional drivers must be enabled in order to use the
           functionality of the device.
 
-endif # MFD_SUPPORT
+endmenu
+endif
 
 menu "Multimedia Capabilities Port drivers"
         depends on ARCH_SA1100