mfd: Introduce retu-mfd driver
Retu is a multi-function device found on Nokia Internet Tablets
implementing at least watchdog, RTC, headset detection and power button
functionality.
This patch implements minimum functionality providing register access,
IRQ handling and power off functions.
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index ca633df..f5b839b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1094,6 +1094,15 @@
You need to select the mfd cell drivers separately.
The drivers do not support all features the board exposes.
+config MFD_RETU
+ tristate "Support for Retu multi-function device"
+ select MFD_CORE
+ depends on I2C
+ select REGMAP_IRQ
+ help
+ Retu is a multi-function device found on Nokia Internet Tablets
+ (770, N800 and N810).
+
endmenu
endif