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Commit a603a7fa authored by David Brownell's avatar David Brownell Committed by Samuel Ortiz
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mfd: TWL4030 core driver 

This patch adds the core of the TWL4030 driver, which supports
chips including the TPS65950.  These chips are multi-function; see

  http://focus.ti.com/docs/prod/folders/print/tps65950.html



Public specs are in the works.  For now, the block diagram on
the second page of the datasheet is fairly informative.

There are some known issues with this core code.  Most notably,
the IRQ dispatching needs simplification (to use more of genirq),
generalization (integrating support for secondary IRQ dispatch
as well as primary, and removing the build dependency on OMAP),
and then probably updating to leverage threaded IRQ support
(expected to arrive in mainline "soon").

Once the core is in mainline, drivers for other parts of this
chip can follow its lead and start swimming upstream too.

Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarSamuel Ortiz <sameo@openedhand.com>
parent 9e78cfe5

drivers/mfd/Kconfig

+14 −0
Original line number Diff line number Diff line
@@ -59,6 +59,20 @@ config UCB1400_CORE 
	  To compile this driver as a module, choose M here: the

	  module will be called ucb1400_core.



config TWL4030_CORE

	bool "Texas Instruments TWL4030/TPS659x0 Support"

	depends on I2C=y && GENERIC_HARDIRQS && (ARCH_OMAP2 || ARCH_OMAP3)

	help

	  Say yes here if you have TWL4030 family chip on your board.

	  This core driver provides register access and IRQ handling

	  facilities, and registers devices for the various functions

	  so that function-specific drivers can bind to them.



	  These multi-function chips are found on many OMAP2 and OMAP3

	  boards, providing power management, RTC, GPIO, keypad, a

	  high speed USB OTG transceiver, an audio codec (on most

	  versions) and many other features.



config MFD_TMIO

	bool

	default n

drivers/mfd/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -17,6 +17,8 @@ wm8350-objs := wm8350-core.o wm8350-regmap.o wm8350-gpio.o 
obj-$(CONFIG_MFD_WM8350)	+= wm8350.o

obj-$(CONFIG_MFD_WM8350_I2C)	+= wm8350-i2c.o



obj-$(CONFIG_TWL4030_CORE)	+= twl4030-core.o



obj-$(CONFIG_MFD_CORE)		+= mfd-core.o



obj-$(CONFIG_MCP)		+= mcp-core.o