mfd: New AB8500 driver
Add a new driver to support the AB8500 Power Management chip, replacing
the current AB4500. The new driver replaces the old one, instead of an
incremental modification, because this is a substantial overhaul
including:
- Split of the driver into -core and -spi portions, to allow another
interface layer to be added
- Addition of interrupt support
- Switch to MFD core API for handling subdevices
- Simplification of the APIs to remove a redundant block parameter
- Rename of the APIs and macros from ab4500_* to ab8500_*
- Rename of the files from ab4500* to ab8500*
- Change of the driver name from ab4500 to ab8500
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index b84b707..9da0e50 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -420,11 +420,12 @@
This enables the PCAP ASIC present on EZX Phones. This is
needed for MMC, TouchScreen, Sound, USB, etc..
-config AB4500_CORE
- tristate "ST-Ericsson's AB4500 Mixed Signal Power management chip"
- depends on SPI
+config AB8500_CORE
+ bool "ST-Ericsson AB8500 Mixed Signal Power Management chip"
+ depends on SPI=y && GENERIC_HARDIRQS
+ select MFD_CORE
help
- Select this option to enable access to AB4500 power management
+ 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.
This chip embeds various other multimedia funtionalities as well.