As the init functions necessary for machine init have moved to
generic.h, remove the unnecessary includes and prototypes definitions
from pxa-dt.c.

This removes the include of mach/pxaXXX-regs.h, and make pxa-dt generic
enough to accept other pxa variants.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Acked-by: NArnd Bergmann <arnd@arndb.de>

In order to have a unique .c file for all pxa variants device-tree
definitions, all the initialization functions for MACHINE_START and
DT_MACHINE_START have been put together into generic.h.

The alternative would have been one pxaXXX-dt.c file per variant.

The move is necessary because each include/mach/pxaXXX.h includes the
variant register descriptions which intersects and conflicts one with
each other.

The change is a preparation for pxa-dt.c to support multiple pxa,
ie. pxa3xx and pxa27x.

The machine files including mach/pxaXXX.h all include generic.h, which
guarantees no regression should be introduced.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Add the initializer for irqs in a device-tree machine on a pxa27x.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Switch to simpler gpio-charger module. PDA power requires additional
setup in platform file and is more suited for boards with separate AC
and USB charging inputs. Tosa has a unified input, so it's better suited
for gpio-charger.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>

Use the more common pr_warn.

Other miscellanea:

o Coalesce formats
o Realign arguments
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>

The kernel used to contain two functions for length-delimited,
case-insensitive string comparison, strnicmp with correct semantics and
a slightly buggy strncasecmp.  The latter is the POSIX name, so strnicmp
was renamed to strncasecmp, and strnicmp made into a wrapper for the new
strncasecmp to avoid breaking existing users.

To allow the compat wrapper strnicmp to be removed at some point in the
future, and to avoid the extra indirection cost, do
s/strnicmp/strncasecmp/g.
Signed-off-by: NRasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This reverts commit 9ff25d7b.

Originally reported on the kernel-build-reports mailing list[0]. The
problem is caused by kernel configs that select both pxa25x and pxa27x
such as cm_x2xx_defconfig and palmz72_defconfig. The short term solution
is to revert the patch introducing the failure. Longer term, all the PXA
chips will be converted to the common clock framework allowing support
for various PXA chips to build into a single image.

Reverting just this one patch does introduce some dead code into the
kernel, but that is offset by making it easier to convert the remaining
PXA platforms to the clock framework.

[0] http://lists.linaro.org/pipermail/kernel-build-reports/2014-October/005576.htmlSigned-off-by: NMike Turquette <mturquette@linaro.org>

Transition the PXA27x CPUs to the clock framework.
This transition still enables legacy platforms to run without device
tree as before, ie relying on platform data encoded in board specific
files.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Add missing bits for CCCR and CCSR :
 - CPLL and PPLL selection, either full speed or 13MHz
 - CPSR masks
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Currently, devices for SSP ports 1, 2 and 3 are registered as compatible
devices to pxa27x-ssp. While the actual IP core is comparable, there are
some subtle differences which users of the SSP ports address by looking at
the 'type' field.

By registering devices of type 'pxa27x-ssp', this 'type' field is
incorrectly set to PXA27x_SSP which confuses the users.

To fix this, provide specific ssp port plaform devices which use
'pxa3xx-ssp' as driver name, an instantiate them from pxa3xx.c.
Signed-off-by: NDaniel Mack <zonque@gmail.com>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@linaro.org>

commit a38b1f60 ("ARM: pxa: Add non device-tree timer link to
clocksource") introduced a harmless section mismatch warning for
all pxa platforms, by introducing a new pxa_timer_init() function
that is not marked __init but that calls pxa_timer_nodt_init(),
which is.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NRobert Jarzmik <robert.jarzmik@free.fr>

Replace obsolete call to strict_strto with kstrto
Signed-off-by: NDaniel Walter <dwalter@google.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

As clocksource pxa_timer was moved to clocksource framework, the
pxa_timer initialization needs to be a bit amended, to pass the
necessary informations to clocksource, ie :
 - the timer interrupt (mach specific)
 - the timer registers base (ditto)
 - the timer clockrate
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>

Move time.c from arch/arm/mach-pxa/time.c to
drivers/clocksource/pxa_timer.c.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>

ARMv6 and greater introduced a new instruction ("bx") which can be used
to return from function calls.  Recent CPUs perform better when the
"bx lr" instruction is used rather than the "mov pc, lr" instruction,
and this sequence is strongly recommended to be used by the ARM
architecture manual (section A.4.1.1).

We provide a new macro "ret" with all its variants for the condition
code which will resolve to the appropriate instruction.

Rather than doing this piecemeal, and miss some instances, change all
the "mov pc" instances to use the new macro, with the exception of
the "movs" instruction and the kprobes code.  This allows us to detect
the "mov pc, lr" case and fix it up - and also gives us the possibility
of deploying this for other registers depending on the CPU selection.
Reported-by: NWill Deacon <will.deacon@arm.com>
Tested-by: Stephen Warren <swarren@nvidia.com> # Tegra Jetson TK1
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> # mioa701_bootresume.S
Tested-by: Andrew Lunn <andrew@lunn.ch> # Kirkwood
Tested-by: NShawn Guo <shawn.guo@freescale.com>
Tested-by: Tony Lindgren <tony@atomide.com> # OMAPs
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> # Armada XP, 375, 385
Acked-by: Sekhar Nori <nsekhar@ti.com> # DaVinci
Acked-by: Christoffer Dall <christoffer.dall@linaro.org> # kvm/hyp
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> # PXA3xx
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> # Xen
Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> # ARMv7M
Tested-by: Simon Horman <horms+renesas@verge.net.au> # Shmobile
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

In order to remove the following ugly message:

  BUG: mapping for 0x00000000 at 0xff000000 out of vmalloc space

the iotable mappings should be re-located inside the vmalloc
region. Such move was introduced at commit:

commit 0536bdf3
Author: Nicolas Pitre <nicolas.pitre@linaro.org>
Date:   Thu Aug 25 00:35:59 2011 -0400

    ARM: move iotable mappings within the vmalloc region
Signed-off-by: NEzequiel Garcia <ezequiel.garcia@free-electrons.com>
[laurent.pinchart@ideasonboard.com: Hardcode the virtual address]
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The IMEMC mapping not only has no user, but maps a reserved memory
space. It just wastes vmalloc space, remove it.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The UNCACHED_PHYS_0 mapping is only needed on PXA25x and PXA27x
platforms. Move it to pxa25x.c and pxa27x.c to avoid wasting vmalloc
space on PXA3xx.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The virtual address, physical address and size of all regions for which
we create static mappings are defined in PXA headers. Replaced the
hardcoded values with macros.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

CONFIG_SPI_PXA2XX_MASTER was used were it was surely meant to use
CONFIG_SPI_PXA2XX_MODULE. Use the IS_ENABLED() macro here, as it guards
against typos like this one.
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Acked-by: NHaojian Zhuang <haojian.zhuang@linaro.org>

This is already done automatically for many other ARM platforms by the
ARM core code, but since pxa is using the .map_io callback, it needs to
call it explicitely for earlyprintk support.
Signed-off-by: NAndrew Ruder <andrew.ruder@elecsyscorp.com>
Acked-by: NHaojian Zhuang <haojian.zhuang@linaro.org>

Comment incorrectly cites errata 39
    E39. SDIO: SDIO Devices Not Working at 19.5 Mbps

Should be errata 38
    E38. MEMC: Memory Controller hangs when entering Self Refresh Mode.
Signed-off-by: NAndrew Ruder <andrew.ruder@elecsyscorp.com>
Acked-by: NHaojian Zhuang <haojian.zhuang@linaro.org>

memblock is now fully integrated into the kernel and is the prefered
method for tracking memory. Rather than reinvent the wheel with
meminfo, migrate to using memblock directly instead of meminfo as
an intermediate.
Acked-by: NJason Cooper <jason@lakedaemon.net>
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Tested-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Tested-by: NLeif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: NLaura Abbott <lauraa@codeaurora.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Use the new variant of the PWM_LOOKUP macro to initialize the PWM lookup
table.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>

Instead of relying on the .pwm_period_ns member of the pwm-backlight
driver's platform data, the PWM period can be retrieved from the PWM
lookup table.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>

Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

hx4700 needs the same fix as in
9705e746
"ARM: pxa: fix various compilation problems"

Fix build errors. Initial one is:
/linux/arch/arm/mach-pxa/include/mach/hx4700.h:18:32: error:
 'PXA_NR_BUILTIN_GPIO' undeclared here (not in a function)
|  #define HX4700_ASIC3_GPIO_BASE PXA_NR_BUILTIN_GPIO

Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: NAndrea Adami <andrea.adami@gmail.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The trizeps4 and trizeps4wl platforms are both implemented
using the same board file. Since the trizeps4wl code is a
superset of trizeps4, it makes no sense to enable just the
latter, but with the current Kconfig logic, it causes the
board file not to be built at all.

Selecting MACH_TRIZEPS4 from MACH_TRIZEPS4WL ensures that
we are actually building the board file.

Found during randconfig testing.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Daniel Mack <zonque@gmail.com>

The Arcom/Eurotech VIPER SBC enables the I2C_GPIO driver, but
that has a dependency on I2C, and causes build failures if I2C
is disabled. To keep existing configurations running while fixing
the randconfig problems, this changes the logic to only enable
I2C_GPIO if I2C is already enabled.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NHaojian Zhuang <haojian.zhuang@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Daniel Mack <zonque@gmail.com>

balloon3_udc_init() tries to register a balloon3_gpio_vbus
device, but this has never been defined in the mainline
kernel. To avoid the obvious build failure when this function
is enabled, remove the bogus reference here.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Daniel Mack <zonque@gmail.com>

The colibri_ohci_init function performs a register access through
the io_p2v() macro, which requires the IOMEM macro to be defined.

By explicitly including the asm/io.h header file that contains
this macro, we avoid the build error:

arch/arm/mach-pxa/colibri-evalboard.c: In function 'colibri_ohci_init':
arch/arm/mach-pxa/colibri-evalboard.c:68:2: error: implicit declaration of function 'IOMEM' [-Werror=implicit-function-declaration]
  UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Daniel Mack <zonque@gmail.com>

The SAAR and TAVOREVB machines try to call functions from
the PXAFB frame buffer driver from their platform code,
which only works if that driver is built-in.

This patch ensures that both the generic frame buffer
code and the specific pxafb driver are always enabled
when we build a kernel for one of the two boards.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Daniel Mack <zonque@gmail.com>

We normally don't hard-enable Kconfig options just because
a board contains a specific piece of hardware. In this case,
selecting SMC91X causes a build error, if we don't also enable
basic network device driver support.

Since the platform has no direct dependency on this driver
at link time, we can just remove the 'select' statement.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Daniel Mack <zonque@gmail.com>

Two cpufreq notifiers CPUFREQ_RESUMECHANGE and CPUFREQ_SUSPENDCHANGE have
not been used for some time, so remove them to clean up code a bit.
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: NSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
[rjw: Changelog]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Switching from corgikbd to matrixkbd corgi has lost support for few switches.
Readd them through gpio-keys-polled device (-polled, since scoop does
not provide IRQ for GPIO).
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@gmail.com>

Recent changes to the pwm-backlight driver have made the power supply
mandatory. There is code in the regulator core to deal with situations
where no regulator is specified and provide a dummy, but that works on
DT-based boards only.

The situation can be remedied by adding a dummy regulator during board
initialization.
Tested-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@gmail.com>

Due to commit 88f718e3
"ARM: pxa: delete the custom GPIO header" some drivers fail
compilation, for example like this:

In file included from sound/soc/pxa/spitz.c:28:0:
sound/soc/pxa/spitz.c: In function ‘spitz_ext_control’:
arch/arm/mach-pxa/include/mach/spitz.h:111:30: error:
‘PXA_NR_BUILTIN_GPIO’ undeclared (first use in this function)
 #define SPITZ_SCP_GPIO_BASE (PXA_NR_BUILTIN_GPIO)
(etc.)

This is caused by implicit inclusion of <mach/irqs.h> from
various board-specific headers under <mach/*> in the PXA
platform. So we take a sweep over these, and for every such
header that uses PXA_NR_BUILTIN_GPIO or PXA_GPIO_TO_IRQ()
we explicitly #include "irqs.h" so that we satisfy the
dependency in the board include file alone.
Reported-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: NKevin Hilman <khilman@linaro.org>

This board fails compilation like this:
arch/arm/mach-pxa/am300epd.c: In function ‘am300_cleanup’:
arch/arm/mach-pxa/am300epd.c:179:2: error: implicit declaration
of function ‘PXA_GPIO_TO_IRQ’ [-Werror=implicit-function-declaration]
  free_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), par);

This was caused by commit 88f718e3
"ARM: pxa: delete the custom GPIO header"

This is because it was previously getting the macro PXA_GPIO_TO_IRQ
implicitly from <linux/gpio.h> which in turn implicitly included
<mach/gpio.h> which in turn included <mach/irqs.h>.

Add the missing include so that the board compiles again.
Reported-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NKevin Hilman <khilman@linaro.org>

Before we had the PWM framework we used to have a barebone PWM api. The
HAVE_PWM Kconfig symbol used to be selected by the PWM drivers to specify
the PWM API is present in the kernel. Since the last legacy driver is gone
the HAVE_PWM symbol can go aswell.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-pwm@vger.kernel.orig
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>

After commit 88f718e3
"ARM: pxa: delete the custom GPIO header" a compilation
error was introduced in the PXA25x gadget driver.
An attempt to fix the problem was made in
commit b144e4ab
"usb: gadget: fix pxa25x compilation problems"
by explictly stating the driver needs the <mach/hardware.h>
header, which solved the compilation for a few boards,
such as the pxa255-idp and its defconfig.

However the Lubbock board has this special clause in
drivers/usb/gadget/pxa25x_udc.c:

This include file has an implicit dependency on
<mach/irqs.h> having been included before <mach/lubbock.h>
was included.

Before commit 88f718e3
"ARM: pxa: delete the custom GPIO header" this implicit
dependency for the pxa25x_udc compile on the Lubbock was
satisfied by <linux/gpio.h> implicitly including
<mach/gpio.h> which was in turn including <mach/irqs.h>,
apart from the earlier added <mach/hardware.h>.

Fix this by having the PXA25x <mach/lubbock.h> explicitly
include <mach/irqs.h>.
Reported-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Cc: Greg Kroah-Hartmann <gregkh@linuxfoundation.org>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>