These files were getting <linux/module.h> via an implicit non-obvious
path, but we want to crush those out of existence since they cost
time during compiles of processing thousands of lines of headers
for no reason.  Give them the lightweight header that just contains
the EXPORT_SYMBOL infrastructure.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>

Some functions of irq generic-chip is undefined, because
EXPORT_SYMBOL_GPL is not set to these.

ERROR: "irq_setup_generic_chip" [drivers/gpio/gpio-pch.ko] undefined!
ERROR: "irq_alloc_generic_chip" [drivers/gpio/gpio-pch.ko] undefined!
ERROR: "irq_setup_generic_chip" [drivers/gpio/gpio-ml-ioh.ko] undefined!
ERROR: "irq_alloc_generic_chip" [drivers/gpio/gpio-ml-ioh.ko] undefined!

This is revised that EXPORT_SYMBOL_GPL can be added and referred
to in functions.
Signed-off-by: NNobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

(!msk & 0x01) should be !(msk & 0x01)
Signed-off-by: NJonghwan Choi <jhbird.choi@samsung.com>
Link: http://lkml.kernel.org/r/1311229754-6003-1-git-send-email-jhbird.choi@samsung.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org

This fixes a regression introduced by e59347a1 "arm: orion:
Use generic irq chip".

Depending on the device, interrupts acknowledgement is done by setting
or by clearing a dedicated register. Replace irq_gc_ack() with some
{set,clr}_bit variants allows to handle both cases.

Note that this patch affects the following SoCs: Davinci, Samsung and
Orion. Except for this last, the change is minor: irq_gc_ack() is just
renamed into irq_gc_ack_set_bit().

For the Orion SoCs, the edge GPIO interrupts support is currently
broken. irq_gc_ack() try to acknowledge a such interrupt by setting
the corresponding cause register bit. The Orion GPIO device expect the
opposite. To fix this issue, the irq_gc_ack_clr_bit() variant is used.

Tested on Network Space v2.
Reported-by: NJoey Oravec <joravec@drewtech.com>
Signed-off-by: NSimon Guinot <sguinot@lacie.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

These callbacks are only called in the syscore suspend/resume code on
interrupt chips which have been registered via the generic irq chip
mechanism. Calling those callbacks per irq would be rather icky, but
with the generic irq chip mechanism we can call this per registered
chip.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org

Implement a generic interrupt chip, which is configurable and is able
to handle the most common irq chip implementations.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Tested-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Tested-by: NTony Lindgren <tony@atomide.com>
Tested-by; Kevin Hilman <khilman@ti.com>