According to the documentation gpio_free should only be called from task
context only.  To make this more explicit add a might sleep to all
implementations.

This patch changes the gpio_free implementations for the arm architecture.
 DaVinci is skipped on purpose to simplify the merge process for patches
switching it over to use gpiolib as per request by David Brownell.
Signed-off-by: NUwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Cc: David Brownell <david-b@pacbell.net>
Cc: Andrew Victor <linux@maxim.org.za>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Nuke the Orion-specific orion5x_{read,write} wrappers.
Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>

Instead of having board code poke directly into the MPP configuration
registers, and separately calling orion5x_gpio_set_valid_pins() to
indicate which MPP pins can be used as GPIO pins, introduce a helper
function for configuring the roles of each of the MPP pins, and have
that helper function handle gpio validity internally.
Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Acked-by: NSylver Bruneau <sylver.bruneau@googlemail.com>
Acked-by: NRussell King <linux@arm.linux.org.uk>

Do a global s/orion/orion5x/ of the Orion 5x-specific bits (i.e.
not the plat-orion bits.)
Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Reviewed-by: NTzachi Perelstein <tzachi@marvell.com>
Acked-by: NSaeed Bishara <saeed@marvell.com>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NNicolas Pitre <nico@marvell.com>

Various Orion cleanups:
- Unify GPL license banner format across all files.
- Unify naming of .h double inclusion guard preprocessor macros.
- Unify spelling of "PCIe" (variants seen: PCIE, PCIe, PCI-EX.)
- Various typo fixes.
- Remove __init attributes from prototypes declared in headers.
- Remove trailing comments from #endif statements.
- Mark a couple of locally-used-only structs static.
Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Reviewed-by: NTzachi Perelstein <tzachi@marvell.com>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NNicolas Pitre <nico@marvell.com>

Move the Orion register accessor macros out of orion.h, to prevent
them from ending up in the decompressor image (Orion uncompress.h
includes orion.h.)  Move them into io.h, which seems a better place
for this kind of stuff.
Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Reviewed-by: NTzachi Perelstein <tzachi@marvell.com>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NNicolas Pitre <nico@marvell.com>

__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This patch adds support for Orion edge sensitive GPIO IRQs.
Signed-off-by: NTzachi Perelstein <tzachi@marvell.com>
Signed-off-by: NNicolas Pitre <nico@marvell.com>
CC: Thomas Gleixner <tglx@linutronix.de>

This is a pre-requisite for implementing proper hardware accelerated
GPIO LED flashing, and since we want proper locking, it's sensible to provide
the orion specific orion_gpio_set_blink() implementation within
mach-orion/gpio.c. The functions orion_gpio_set_blink() and gpio_set_value()
implicitly turn off each others state.
Signed-off-by: NHerbert Valerio Riedel <hvr@gnu.org>
Acked-by: NTzachi Perelstein <tzachi@marvell.com>
Acked-by: NNicolas Pitre <nico@marvell.com>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NTzachi Perelstein <tzachi@marvell.com>
Signed-off-by: NNicolas Pitre <nico@marvell.com>
Acked-by: NDavid Brownell <david-b@pacbell.net>