The patch converts gpio-mxs driver to use generic irq chip.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The gpio-mxs controller complies with basic_mmio_gpio library.  This
patch converts the driver to use the library.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The patch converts gpio-mxc driver to use generic irq chip.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Sort the gpio makefile and enforce the naming convention gpio-*.c for
gpio drivers.

v2: cleaned up filenames in Kconfig and comment blocks
v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The GPIO driver should reside in drivers/gpio.

v3: Change Kconfig option to def_bool y
v2: Make the Kconfig symbol a silent option, dependent on ARCH_EP93XX
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The gpio-mxc controller complies with basic_mmio_gpio library.  The
patch convert the driver to use the library.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

GPIO drivers are getting moved to drivers/gpio for cleanup and
consolidation.  This patch moves the plat-mxc driver.  Follow up
patches will clean it up and make it a fine upstanding gpio driver.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

GPIO drivers are getting moved to drivers/gpio for cleanup and
consolidation.  This patch moves the mxs driver.  Follow up patches
will clean it up and make it a fine upstanding example of a gpio
driver.

v2: Removed header file entirely and put struct definition directly
    into driver.  The struct isn't used anywhere else in the kernel.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Tested-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>

The Samsung GPIO drivers are always built-in when the relevant
platform is selected.  Change the Kconfig symbol to def_bool y
dependant on the platform.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

We had a few drivers move from arch/arm into drivers/gpio, but they
don't actually compile without the ARM platform headers etc.  As a
result they were messing up allyesconfig on x86.

Make them depend on ARM.
Reported-by: NIngo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub).
The ML7223 IOH is for MP(Media Phone) use.
The ML7223 is companion chip for Intel Atom E6xx series.
The ML7223 is completely compatible for Intel EG20T PCH.
Signed-off-by: NTomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The GPIO driver should reside in drivers/gpio/ for better
organization.
Signed-off-by: NJorge Eduardo Candelaria <jedu@slimlogic.co.uk>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>

Move the Samsung s5pc100 SoC GPIO driver to drivers/gpio
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Move the Samsung s5pv210 SoC GPIO driver to drivers/gpio
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Move the Samsung Exynos4 series SoCs GPIO driver to drivers/gpio
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

It's common gpiolib for recent Samsung SoCs. Move to drivers/gpio
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

cs5535-gpio.c has been split into two, with various setup moved
into cs5535-mfd.c.  Given that cs5535-gpio will not load without
the -mfd part, lets make that dependency explicit in Kconfig
Signed-off-by: NEd Wildgoose <kernel@wildgooses.com>
Acked-by: NAndres Salomon <dilinger@queued.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Allow GPIO_BASIC_MMIO_CORE to be used to provide an accessor library
for implementing GPIO drivers whilst abstracting the register access
detail.  Based on a patch from Anton Vorontsov[1] and adapted to allow
bgpio_chip to be embedded in another structure.

Changes since v1:
	- Register the gpio_chip in the platform device probe

1. https://lkml.org/lkml/2011/4/19/401Signed-off-by: NAnton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: NJamie Iles <jamie@jamieiles.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The build files for drivers/gpio has some wording and comments
about the directory being reserved exclusively for GPIO expanders
(according to the gpio.txt file these are on external busses) and
this has been false for some time. We already have PL061 and
Xilinx drivers which are in silicon and now I'm moving more
silicon drivers here, so delete this and reword it a bit.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Since all the drivers are in a 'if GPIOLIB/endif block', the depends on GPIOLIB
is redundant so remove them.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

This driver is broken in several aspects.

 1) old style irq_chip functions. Sigh

 2) Abuse of the unlock callback. That's not supposed to be a state
    machine for evrything and some more.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

To get rid of port expanders, the free GPIOs of ab8500
can be used. There are 42 GPIO pins. Out of which 16
are interrupt capable.This patch implements 16 virtual
IRQ mapped to 16 interrupt capable AB8500 GPIOs.
Signed-off-by: NBibek Basu <bibek.basu@stericsson.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
[Renamed header file as per MFD structure]
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Almost the same driver for both Poulsbo and Tunnel Creek.
The difference is in quantity of GPIOs powered by the core power
rail and by suspend power supply, default values for some GPIOs, etc.
Detect actual hardware by platform device ID assigned in lpc_sch
and set configuration accordingly.
Signed-off-by: NDenis Turischev <denis@compulab.co.il>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Nothing outside of x86 can use that code.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

mpc23s17 is very similar to the mcp23s08, except that registers are 16bit
wide, so extend the interface to work with both variants.

The s17 variant also has an additional address pin, so adjust platform
data structure to support up to 8 devices per SPI chipselect.
Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

ML7213 is a companion chip for Intel Atom E6xx series.  This driver can be
used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output Hub) which is for
IVI(In-Vehicle Infotainment) use.  This driver can access the IOH's GPIO
device.
Signed-off-by: NTomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Marc Zyngier <maz@misterjones.org>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Fix kconfig dependency warning to satisfy dependencies:

warning: (GPIO_VX855 && GPIOLIB) selects MFD_VX855 which has unmet direct dependencies (MFD_SUPPORT && PCI)
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: Daniel Drake <dsd@laptop.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Fix kconfig dependency warning to satisfy dependencies:

warning: (GPIO_RDC321X && PCI && GPIOLIB) selects MFD_RDC321X which has unmet direct dependencies (MFD_SUPPORT && PCI)
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: Florian Fainelli <florian@openwrt.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This adds (well, re-adds actually) handling for events/IRQs through cs5535
GPIOs.  In the wild and wooly world of CS5535, setup_event() is for
assigning an IRQ to a GPIO filter/event pair, and set_irq() sets up the
pair to trigger IRQs.

These should really only be used in highly platform-specific drivers (such
as OLPC's DCON driver).  Sadly, because set_irq() uses MSRs, this causes
the driver to become X86-specific.
Signed-off-by: NAndres Salomon <dilinger@queued.net>
Signed-off-by: NDaniel Drake <dsd@laptop.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Rename the tc35892 core/gpio drivers to tc3589x to include
new variants in the same mfd core
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NSundar Iyer <sundar.iyer@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>

This is needed for supporting the upcoming VX855 camera and OLPC DCON
drivers, as well as the advanced viafb features on non-OLPC hardware
based on this chip.

Based on earlier work by Harald Welte.
Signed-off-by: NDaniel Drake <dsd@laptop.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Topcliff PCH is the platform controller hub that is going to be used in
Intel's upcoming general embedded platform.  All IO peripherals in
Topcliff PCH are actually devices sitting on AMBA bus.  Topcliff PCH has
GPIO I/F.  Using this I/F, it is able to access system devices connected
to GPIO.

[akpm@linux-foundation.org: ese DEFINE_PCI_DEVICE_TABLE (per Joe Perches)]
Signed-off-by: NTomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Reviewed-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Tomoya MORINAGA <morinaga526@dsn.okisemi.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Implement irq_chip functionality on ADP5588/5587 GPIO expanders.  Only
level sensitive interrupts are supported.  Interrupts provided by this
irq_chip must be requested using request_threaded_irq().
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add support for generic 74x164 serial-in/parallel-out 8-bits shift
register.  This driver can be used as a GPIO output expander.

[akpm@linux-foundation.org: remove unused local `refresh']
Signed-off-by: NMiguel Gaio <miguel.gaio@efixo.com>
Signed-off-by: NJuhos Gabor <juhosg@openwrt.org>
Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The basic GPIO controllers may be found in various on-board FPGA and ASIC
solutions that are used to control board's switches, LEDs, chip-selects,
Ethernet/USB PHY power, etc.

These controllers may not provide any means of pin setup
(in/out/open drain).

The driver supports:
- 8/16/32/64 bits registers;
- GPIO controllers with clear/set registers;
- GPIO controllers with a single "data" register;
- Big endian bits/GPIOs ordering (mostly used on PowerPC).
Signed-off-by: NAnton Vorontsov <cbouatmailru@gmail.com>
Reviewed-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Samuel Ortiz <sameo@linux.intel.com>,
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add support for the GPIOs on STMPE I/O Expanders.

[l.fu@pengutronix.de: fix set direction input]
[l.fu@pengutronix.de: set GPIO alternate function while requesting]
Acked-by: NLuotao Fu <l.fu@pengutronix.de>
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NRabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add support for Semtech SX150-series I2C GPIO expanders.  Compatible
models include:

8 bits:  sx1508q
16 bits: sx1509q
Signed-off-by: NGregory Bean <gbean@codeaurora.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Trilok Soni <tsoni@codeaurora.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Update Kconfig and Makefile in drivers/gpio to discourage inappropriate
addition of platform-specific code.

[akpm@linux-foundation.org: fix tpyo]
Signed-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Fix rdc321x-southbridge build:  GPIO_RDC321X needs to select
MFD_CORE so that the core is built at the same (or higher)
tristate level.

rdc321x-southbridge.c:(.devinit.text+0x6103): undefined reference to `mfd_add_devices'
rdc321x-southbridge.c:(.devexit.text+0xe5f): undefined reference to `mfd_remove_devices'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc:	Florian Fainelli <florian@openwrt.org>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Add a GPIO driver to support the GPIOs on the TC35892 I/O Expander.
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NRabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>