mfd: Add driver for STA2X11 MFD block

This also introduces <asm/sta2x11.h> to export a function that is in
the base sta2x11 support patches. The header will increase with other
prototypes and constants over time.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index ef86a741b7e2..48eed22c65a5 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -906,6 +906,11 @@ config MFD_RC5T583
           Additional drivers must be enabled in order to use the
           different functionality of the device.
 
+config MFD_STA2X11
+        bool "STA2X11 multi function device support"
+        depends on STA2X11
+        select MFD_CORE
+
 config MFD_ANATOP
         bool "Support for Freescale i.MX on-chip ANATOP controller"
         depends on SOC_IMX6Q