linux-toradex.git/include/linux/mfd/wm831x/core.h, branch v3.2.16

Merge branch 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6

2011-11-03T16:40:51+00:00

* 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6: (80 commits)
  mfd: Fix missing abx500 header file updates
  mfd: Add missing  include to intel_msic
  x86, mrst: add platform support for MSIC MFD driver
  mfd: Expose TurnOnStatus in ab8500 sysfs
  mfd: Remove support for early drop ab8500 chip
  mfd: Add support for ab8500 v3.3
  mfd: Add ab8500 interrupt disable hook
  mfd: Convert db8500-prcmu panic() into pr_crit()
  mfd: Refactor db8500-prcmu request_clock() function
  mfd: Rename db8500-prcmu init function
  mfd: Fix db5500-prcmu defines
  mfd: db8500-prcmu voltage domain consumers additions
  mfd: db8500-prcmu reset code retrieval
  mfd: db8500-prcmu tweak for modem wakeup
  mfd: Add db8500-pcmu watchdog accessor functions for watchdog
  mfd: hwacc power state db8500-prcmu accessor
  mfd: Add db8500-prcmu accessors for PLL and SGA clock
  mfd: Move to the new db500 PRCMU API
  mfd: Create a common interface for dbx500 PRCMU drivers
  mfd: Initialize DB8500 PRCMU regs
  ...

Fix up trivial conflicts in
	arch/arm/mach-imx/mach-mx31moboard.c
	arch/arm/mach-omap2/board-omap3beagle.c
	arch/arm/mach-u300/include/mach/irqs.h
	drivers/mfd/wm831x-spi.c

mfd: Simulate active high IRQs with wm831x

2011-10-24T12:09:14+00:00

In order to ease system integration provide a simulation of active high
IRQs on the GPIOs by polling the GPIO status when an IRQ is generated.

This isn't ideal on several fronts and will miss initially active IRQs in
the current implementation but it should work well for most cases.

Signed-off-by: Mark Brown 
Signed-off-by: Samuel Ortiz

mfd: Support software initiated shutdown of WM831x PMICs

2011-10-24T12:09:13+00:00

In systems where there is no hardware signal from the processor to the
PMIC to initiate the final power off sequence we must initiate the
shutdown with a register write to the PMIC. Support such systems in the
driver. Since this may prevent a full shutdown of the system platform
data is used to enable the feature.

Signed-off-by: Mark Brown 
Signed-off-by: Samuel Ortiz

mfd: Support software initiated shutdown of WM831x PMICs

2011-09-20T12:02:09+00:00

In systems where there is no hardware signal from the processor to the
PMIC to initiate the final power off sequence we must initiate the
shutdown with a register write to the PMIC. Support such systems in the
driver. Since this may prevent a full shutdown of the system platform
data is used to enable the feature.

Signed-off-by: Mark Brown 
Signed-off-by: Samuel Ortiz

mfd: Convert WM831x to use regmap API

2011-08-22T11:23:22+00:00

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 
Acked-by: Samuel Ortiz

mfd: Add WM831x clock control register definitions

2011-07-31T21:28:24+00:00

Signed-off-by: Mark Brown 
Signed-off-by: Samuel Ortiz

mfd: Support multiple active WM831x AUXADC conversions

2011-07-31T21:28:20+00:00

The WM831x AUXADC hardware can schedule multiple conversions at once,
allowing higher performance when more than one source is in use as we
can have the hardware start new conversions without having to wait for
a register write.

Take advantage of this in the interrupt driven case, maintaining a list of
callers that are waiting for AUXADC conversions and completing them all
simultaneously. The external interface of the AUXADC is not changed so
there will be limited use of the feature immediately.

Signed-off-by: Mark Brown 
Signed-off-by: Samuel Ortiz

mfd: Read wm831x AUXADC conversion results before acknowledging interrupt

2011-07-31T21:28:20+00:00

Ensure that there's no possibility of loosing an AUXADC interrupt by reading
the conversion result in the IRQ handler when using interrupts. Otherwise
it's possible that under very heavy load a new conversion could be initiated
before the acknowledgement for a previous interrupt has happened.

Signed-off-by: Mark Brown 
Signed-off-by: Samuel Ortiz

mfd: Support dynamic allocation of IRQ range for wm831x

2011-07-31T21:28:19+00:00

Use irq_allocate_desc() to get the IRQ range, which turns into a noop on
non-sparse systems. Since all existing users are non-sparse there should
be no compatibility issues.

Signed-off-by: Mark Brown 
Signed-off-by: Samuel Ortiz

mfd: Fix bus lock interaction for WM831x IRQ set_type() operation

2011-07-31T21:28:19+00:00

The WM831x IRQ set_type() operation is doing a direct register write when
called but since set_type() is called with the bus lock held this isn't
legal and could cause deadlocks in the IRQ core.

Fix this by posting the updates into an array and syncing in the
bus_sync_unlock() callback.

Signed-off-by: Mark Brown 
Signed-off-by: Samuel Ortiz