Using the default kernel "events" workqueue causes problems with
synchronous adc readings if initiated from some task on the same
workqueue.

I had a deadlock trying to use pcf50633_adc_sync_read from a
power_supply class driver because the reading was initiated from the
workqueue and it waited for the irq processing to complete (to get the
result) and that was put on the same workqueue.
Signed-off-by: NPaul Fertser <fercerpav@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

For MFDs running regulator cores, we really want them to be brought up early
during boot.
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NMike Rapoport <mike@compulab.co.il>

In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Without this change Openmoko Freerunner (GTA02) bootstrap will deadlock.
As pointed out in other patches this issue is in the wild since the merge
of:

: commit 3aa551c9
: Author: Thomas Gleixner <tglx@linutronix.de>
: Date:   Mon Mar 23 18:28:15 2009 +0100
:
:    genirq: add threaded interrupt handler support
:
:    Add support for threaded interrupt handlers
Signed-off-by: NNelson Castillo <arhuaco@freaks-unidos.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <balajirrao@openmoko.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Removed duplicated #include <linux/device.h> in
  drivers/mfd/pcf50633-core.c
Signed-off-by: NHuang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@openedhand.com>

The i2c_device_id list is supposed to be zero-terminated.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Balaji Rao <balajirrao@openmoko.org>
Signed-off-by: NSamuel Ortiz <sameo@openedhand.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

Remove references to set_irq_type and handle_level_irq which are not exported
to modules
Signed-off-by: NBalaji Rao <balajirrao@openmoko.org>
Signed-off-by: NSamuel Ortiz <sameo@openedhand.com>

This patch implements the core of the PCF50633 driver. This core driver has
generic register read/write functions and does interrupt management for its
sub devices.
Signed-off-by: NBalaji Rao <balajirrao@openmoko.org>
Cc: Andy Green <andy@openmoko.com>
Signed-off-by: NSamuel Ortiz <sameo@openedhand.com>