This patch modifies parameter of clksrc_read() from 'void' to
'struct clocksource *cs', which fixes compile warning for
incompatible parameter type.
Signed-off-by: Coly Li <coly.li@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Currently "tidspbridge" driver uses its own mmu implementation and
will migrate to use this "omap iommu" eventually. This config is
provided to make this migration happen smoothly.
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Remove explicit names from platform device resources since they will
automatically be named after the platform device they're associated
with.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
For the QNAP TS-119 and TS-219 the wrong MPPs were used for the SATA
activity/presence LEDs. The new settings make these LEDs work as
expected.
Signed-off-by: Thomas Reitmayr <treitmayr@devbase.at>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Stephen Rothwell <sfr@canb.auug.org.au> writes:
> Today's linux-next build of at least some av32 and arm configs failed like this:
>
> arch/avr32/kernel/signal.c:216: error: conflicting types for 'restart_syscall'
> include/linux/sched.h:2184: error: previous definition of 'restart_syscall' was here
>
> Caused by commit 690cc3ffe3 ("syscall:
> Implement a convinience function restart_syscall") from the net tree.
Grrr. Some days it feels like all of the good names are already taken.
Let's just rename the two static users in arm and avr32 to get this
sorted out.
Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch provides a device drivers, which has a omap iommu, with
address mapping APIs between device virtual address(iommu), physical
address and MPU virtual address.
There are 4 possible patterns for iommu virtual address(iova/da) mapping.
|iova/ mapping iommu_ page
| da pa va (d)-(p)-(v) function type
---------------------------------------------------------------------------
1 | c c c 1 - 1 - 1 _kmap() / _kunmap() s
2 | c c,a c 1 - 1 - 1 _kmalloc()/ _kfree() s
3 | c d c 1 - n - 1 _vmap() / _vunmap() s
4 | c d,a c 1 - n - 1 _vmalloc()/ _vfree() n*
'iova': device iommu virtual address
'da': alias of 'iova'
'pa': physical address
'va': mpu virtual address
'c': contiguous memory area
'd': dicontiguous memory area
'a': anonymous memory allocation
'()': optional feature
'n': a normal page(4KB) size is used.
's': multiple iommu superpage(16MB, 1MB, 64KB, 4KB) size is used.
'*': not yet, but feasible.
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
The arch_initcall() is too late for board initialisation to use
gpiolib when doing their machine specific initilisation via the
.init_machine callback.
Bring the file into line with the s3c64xx implementation and use
the core_initcall() to register the GPIO chips.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Several GPIO functions have been returning -1 to indicate
an error instead of returning a proper error code. Change
to return -EINVAL for invalid argument(s).
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Remove the __initdata annotation for the clock lookups, since they
will be needed when loading modules which use clk_get().
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Remove the __initdata annotation for the clock lookups, since they
will be needed when loading modules which use clk_get().
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add rtc,kpi and usbd device platform_device define
in arch/arm/mach-w90x900/mach-w90p910evb.c.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add rtc,kpi and usbd device map_desc define in
/arch/arm/mach-w90x900/w90p910.c.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This moves the GPIO driver away from using __devinit and __devexit
It also removes all printk() in favor of using dev_* print macros
on pdev->dev struct instead. Surplus prints are removed, and the
platform_device_probe() function is used instead of putting a
.probe function in the platform driver struct.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The message was missing a severity macro so pick pr_debug().
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add support for the DMA blocks in the S3C64XX series of CPUS,
which are based on the ARM PL080 PrimeCell system.
Unfortunately, these DMA controllers diverge from the PL080
design by adding another DMA controller register and
configuration for OneNAND.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Prepare to remove the large number of S3C2410_GPxn defines
by moving to S3C2410_GPx(n) in arch/arm.
The following perl was used to change the files:
perl -pi~ -e 's/S3C2410_GP([A-Z])([0-9]+)([^_^0-9])/S3C2410_GP\1\(\2\)\3/g'
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the new style of GPIO numbering by using a single
macro for each GPIO bank. This means S3C2410_GPA0 becomes
S3C2410_GPA(0), and so on.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The S3C24XX_GPIO_BASE makes it difficult to compress the
GPIO number space, and is only used in a few places of
which everything outside arch/arm/plat-s3c24xx/gpiolib.c
will be removed as soon as possible.
Change gpiolib.c to use the S3C2410_GPxCON register addresses
as the base for each bank, thus eliminating S3C24XX_GPIO_BASE.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The <mach/regs-gpio.h> really does not need the input and output
pin configurations as these are standard and have a generic
representation (plus the s3c24xx gpio specific code is going to
be phased out soon).
The following sed was applied to remove the lines:
sed -i~ -e '/S3C2410_GP[A-Z][0-9]*_\INP/d' \
-e '/S3C2410_GP[A-Z][0-9]*_\OUTP/d' \
-e '/S3C2410_GPA[0-9]*_OUT/d'
to remove these.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
In our recent changes, arch/arm/plat-s3c24xx/gpiolib.c needs
to have <linux/sysdev.h> included for it to build.
This fixes the following error/warnings:
arch/arm/plat-s3c/include/plat/pm.h:104: error: expected declaration specifiers or '...' before 'pm_message_t'
arch/arm/plat-s3c/include/plat/pm.h:104: warning: 'struct sys_device' declared inside parameter list
arch/arm/plat-s3c/include/plat/pm.h:104: warning: its scope is only this definition or declaration, which is probably not what you want
arch/arm/plat-s3c/include/plat/pm.h:105: warning: 'struct sys_device' declared inside parameter list
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move all the gpio functions out of <mach/hardware.h> as
this file is for defining the generic IO base addresses
for the kernel IO calls.
Make a new header <mach/gpio-fns.h> to take this and
include it via the chain from <linux/gpio.h> which is
what most of these files should be using (and will be
changed as soon as possible).
Note, this does make minor changes to some drivers but
should not mess up any pending merges.
CC: Richard Purdie <rpurdie@rpsys.net>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
CC: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Currently spitz_ohci_init() that requests GPIO doesn't have
corresponding spitz_ohci_exit() which will gpio_free(). This causes
minor problems e.g. during resume when the OHCI device can't be resumed.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
'mach-pxa' platforms currently rely on a bootloader to setup GPIO pins
and clear RDH (to enable inputs).
A kernel loaded by a 'minimal' bootloader, that doesn't touch any pins,
will not function correctly; inputs will remain disabled, even after the
pins are configured. The following change fixes the issue and has been
verified on Gumstix Verdex XL6P and a custom PXA270 platform.
Signed-off-by: Timothy Clacy <tcl@phaseone.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
I want to reuse tosa/spitz gpio_reset code, but my board needs the reset
gpio to be driven high during normal operation.
Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
pfn_valid() is meant to be able to tell if a given PFN has valid memmap
associated with it or not. In FLATMEM, it is expected that holes always
have valid memmap as long as there is valid PFNs either side of the hole.
In SPARSEMEM, it is assumed that a valid section has a memmap for the
entire section.
However, ARM and maybe other embedded architectures in the future free
memmap backing holes to save memory on the assumption the memmap is never
used. The page_zone linkages are then broken even though pfn_valid()
returns true. A walker of the full memmap must then do this additional
check to ensure the memmap they are looking at is sane by making sure the
zone and PFN linkages are still valid. This is expensive, but walkers of
the full memmap are extremely rare.
This was caught before for FLATMEM and hacked around but it hits again for
SPARSEMEM because the page_zone linkages can look ok where the PFN linkages
are totally screwed. This looks like a hatchet job but the reality is that
any clean solution would end up consumning all the memory saved by punching
these unexpected holes in the memmap. For example, we tried marking the
memmap within the section invalid but the section size exceeds the size of
the hole in most cases so pfn_valid() starts returning false where valid
memmap exists. Shrinking the size of the section would increase memory
consumption offsetting the gains.
This patch identifies when an architecture is punching unexpected holes
in the memmap that the memory model cannot automatically detect and sets
ARCH_HAS_HOLES_MEMORYMODEL. At the moment, this is restricted to EP93xx
which is the model sub-architecture this has been reported on but may expand
later. When set, walkers of the full memmap must call memmap_valid_within()
for each PFN and passing in what it expects the page and zone to be for
that PFN. If it finds the linkages to be broken, it assumes the memmap is
invalid for that PFN.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The i.MX31 PDK consists of several boards, one of them is a debug
board containing a CPLD which controls some debug leds, switch
buttons, an interrupt chip and an Ethernet controller.
This patch adds support for detecting if the PDK board is present
(during boot) and adds the interrupt chip to the kernel.
Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Use the newly moved <plat/watchdog-reset.h> to perform the
arch_reset() call which has been unimplemented for a while.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the watchdog reset code from <mach/system-reset.h> to
a new file <plat/watchdog-reset.h> as this code is needed
by both s3c2410, s3c64xx and soon-to-be added s3c24a0.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The use of S3C2410_GP[A-Z]x_INP and S3C2410_GP[A-Z]x_OUTP are
very rare and are taking up large amounts of space in the
regs-gpio.h header.
The GPIO layer has had generic input and out defines called
S3C2410_GPIO_INPUT and S3C2410_GPIO_OUTPUT for a while which work
for all S3C24XX GPIOs.
Do the following replacements:
S3C2410_GP[A-Z][0-9]*_\OUTP => S3C2410_GPIO_OUTPUT
S3C2410_GP[A-Z][0-9]*_\INP => /S3C2410_GPIO_INPUT
S3C2410_GPA[0-9]*_OUT => S3C2410_GPIO_OUTPUT
to remove any usages of these and prepare the header for
the removal of these.
The following command was used to acheive this:
find . -type f -writable ! -name regs-gpio.h ! -name "*~" | xargs sed -i~ -e 's/S3C2410_GP[A-Z][0-9]*_\OUTP/S3C2410_GPIO_OUTPUT/g' -e 's/S3C2410_GP[A-Z][0-9]*_\INP/S3C2410_GPIO_INPUT/g' -e 's/S3C2410_GPA[0-9]*_OUT/S3C2410_GPIO_OUTPUT/g'
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Remove the s3c2410_gpio_irq2pin() function as it is not being
used in any in kernel driver and the function is probably not
being used anywhere else.
This is also part of the effort to remove any of the s3c24xx gpio
specific code that cannot be recreated by using the gpiolib
framework now in the kernel.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
