mfd: Convert WM831x to use regmap API

Factor out the register read/write code to use the register map API.  We
still need some wm831x specific code and locking in place to check that
the user key is handled correctly but only on the write side, reads are
not affected by the key.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 21574bdf485..cfae5c594d2 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -404,6 +404,7 @@ config MFD_WM831X_I2C
         bool "Support Wolfson Microelectronics WM831x/2x PMICs with I2C"
         select MFD_CORE
         select MFD_WM831X
+        select REGMAP_I2C
         depends on I2C=y && GENERIC_HARDIRQS
         help
           Support for the Wolfson Microelecronics WM831x and WM832x PMICs
@@ -415,6 +416,7 @@ config MFD_WM831X_SPI
         bool "Support Wolfson Microelectronics WM831x/2x PMICs with SPI"
         select MFD_CORE
         select MFD_WM831X
+        select REGMAP_SPI
         depends on SPI_MASTER && GENERIC_HARDIRQS
         help
           Support for the Wolfson Microelecronics WM831x and WM832x PMICs