mfd: AB8500 register access via PRCMU I2C
This patch adds the choice of accessing the AB8500 registers
via prcmu I2C. Access either via SPI or I2C is supported.
Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index e310cb2..01c928b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -475,14 +475,25 @@
config AB8500_CORE
bool "ST-Ericsson AB8500 Mixed Signal Power Management chip"
- depends on SPI=y && GENERIC_HARDIRQS && ABX500_CORE
+ depends on GENERIC_HARDIRQS && ABX500_CORE && SPI_MASTER
select MFD_CORE
help
Select this option to enable access to AB8500 power management
- chip. This connects to U8500 on the SSP/SPI bus and exports
- read/write functions for the devices to get access to this chip.
+ chip. This connects to U8500 either on the SSP/SPI bus
+ or the I2C bus via PRCMU. It also adds the irq_chip
+ parts for handling the Mixed Signal chip events.
This chip embeds various other multimedia funtionalities as well.
+config AB8500_I2C_CORE
+ bool "AB8500 register access via PRCMU I2C"
+ depends on AB8500_CORE && UX500_SOC_DB8500
+ default y
+ help
+ This enables register access to the AB8500 chip via PRCMU I2C.
+ The AB8500 chip can be accessed via SPI or I2C. On DB8500 hardware
+ the I2C bus is connected to the Power Reset
+ and Mangagement Unit, PRCMU.
+
config AB8500_DEBUG
bool "Enable debug info via debugfs"
depends on AB8500_CORE && DEBUG_FS