Drop ARM's version of the dummy timer now that we have a generic
implementation in drivers/clocksource.
Acked-by: NMarc Zyngier <marc.zyngier@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

Some new users of the ARM sched_clock framework are going through
the arm-soc tree. Before 38ff87f7 (sched_clock: Make ARM's
sched_clock generic for all architectures, 2013-06-01) the header
file was in asm, but now it's in linux. One solution would be to
do an evil merge of the arm-soc tree and fix up the asm users,
but it's easier to add a temporary asm header that we can remove
along with the few stragglers after the merge window is over.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

This reverts commit 55a68c23.

In order to avoid a collision with dw_apb_timer changes in
the arm-soc tree, revert this change.

I'm leaving it to the arm-soc folks to sort out if they want
to keep the other side of the collision or if they're just going
to back it all out and try again during the next release cycle.
Reported-by: NDinh Nguyen <dinguyen@altera.com>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

Nothing about the sched_clock implementation in the ARM port is
specific to the architecture. Generalize the code so that other
architectures can use it by selecting GENERIC_SCHED_CLOCK.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
[jstultz: Merge minor collisions with other patches in my tree]
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

If we're suspended and sched_clock() is called we're going to
read the hardware one more time and throw away that value and
return back the cached value we saved during the suspend
callback. This is wasteful. Let's short circuit all that and
return the cached value as early as possible if we're suspended.
Acked-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

The needs_suspend member is unused now that we always do the
suspend/resume handling (see 6a4dae5e (ARM: 7565/1: sched: stop
sched_clock() during suspend, 2012-10-23)).
Acked-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

It seems we made a mistake when creating dw_apb_timer_of.c:
picoxcell sched_clock had parts that were not related to
dw_apb_timer, yet we moved them to dw_apb_timer_of, and tried to
use them on socfpga.

This results in system where user/system time is not measured
properly, as demonstrated by

    time dd if=/dev/urandom of=/dev/zero bs=100000 count=100

So this patch switches sched_clock to hardware that exists on both
platforms, and adds missing of_node_put() in dw_apb_timer_init().
Signed-off-by: NPavel Machek <pavel@denx.de>
Acked-by: NJamie Iles <jamie@jamieiles.com>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

The implementation of cmpxchg64() for the ARM v6 and v7 architecture
casts parameter 2 and 3 (the old and new 64bit values) to an unsigned
long before calling the atomic_cmpxchg64() function. This clears
the top 32 bits of the old and new values, resulting in the wrong
values being compare-exchanged. Luckily, this only appears to be used
for 64-bit sched_clock, which we don't (yet) have on ARM.

This bug was introduced by commit 3e0f5a15 ("ARM: 7404/1: cmpxchg64:
use atomic64 and local64 routines for cmpxchg64").

Cc: <stable@vger.kernel.org>
Acked-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NJaccon Bastiaansen <jaccon.bastiaansen@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Rename xen_secondary_init to xen_percpu_init.
Run xen_percpu_init on the each online cpu, reuse the current on_each_cpu call.
Merge xen_percpu_enable_events into xen_percpu_init.
Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>

We expect VCPUOP_register_vcpu_info to succeed, do not try to handle
failures.
Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: NIan Campbell <ian.campbell@citrix.com>

If we are running in dom0, we have to wait for the arch specific code to
complete the initialization in order for us to successfully reset the
power_off and pm_restart functions.
Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>

Since commit c0114709 ("irqchip: gic: Perform the gic_secondary_init()
call via CPU notifier") it is no longer required nor possible to call
gic_secondary_init() from platform code.
Signed-off-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The 'samsung,vbus-gpio' was submitted before pinmux landed for
exynos5250 and uses the old-style gpio specifier.  Fix the two
exynos5250 boards that use it.
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The kernel crashes while resuming from AFTR idle mode. It happens
because L2 cache was not going into retention state.

This patch configures the USE_RETENTION bit of ARM_L2_OPTION register
so that it does not depend on MANUAL_L2RSTDISABLE_CONTROL of
ARM_COMMON_OPTION register for L2RSTDISABLE signal.
Signed-off-by: NInderpal Singh <inderpal.singh@linaro.org>
Tested-by: NChander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

arch/arm/mach-ux500/board-mop500.c: In function ‘mop500_prox_activate’:
arch/arm/mach-ux500/board-mop500.c:406:18: warning: ignoring return value of
        ‘regulator_enable’, declared with attribute warn_unused_result
        [-Wunused-result]
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Fix db8500_read_soc_id() to read all five soc_id number locations
instead of repeating the second one two times.
Signed-off-by: NFabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Trivial patch, adding the i2c Cypress trackpad used on Snow.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>

Since commit 657eee7d (media: coda: use genalloc API) the following build
error happens with imx_v4_v5_defconfig:

drivers/built-in.o: In function 'coda_remove':
clk-composite.c:(.text+0x112180): undefined reference to 'gen_pool_free'
drivers/built-in.o: In function 'coda_probe':
clk-composite.c:(.text+0x112310): undefined reference to 'of_get_named_gen_pool'
clk-composite.c:(.text+0x1123f4): undefined reference to 'gen_pool_alloc'
clk-composite.c:(.text+0x11240c): undefined reference to 'gen_pool_virt_to_phys'
clk-composite.c:(.text+0x112458): undefined reference to 'dev_get_gen_pool'

Select GENERIC_ALLOCATOR and get rid of the custom IRAM_ALLOC.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Commit bca7a5a0 (ARM: cpu hotplug: remove majority of cache flushing
from platforms) removes include of <asm/cacheflush.h> and hence
discovers a few indirect inclusion and declaration problems as below.

  CC      arch/arm/mach-imx/hotplug.o
In file included from arch/arm/mach-imx/hotplug.c:16:0:
arch/arm/mach-imx/common.h:100:29: warning: ‘struct pt_regs’ declared inside parameter list [enabled by default]
arch/arm/mach-imx/common.h:100:29: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
arch/arm/mach-imx/common.h:101:29: warning: ‘struct pt_regs’ declared inside parameter list [enabled by default]
arch/arm/mach-imx/hotplug.c: In function ‘imx_cpu_die’:
arch/arm/mach-imx/hotplug.c:53:2: error: implicit declaration of function ‘cpu_do_idle’ [-Werror=implicit-function-declaration]
arch/arm/mach-imx/hotplug.c: In function ‘imx_cpu_kill’:
arch/arm/mach-imx/hotplug.c:58:26: error: ‘jiffies’ undeclared (first use in this function)
arch/arm/mach-imx/hotplug.c:58:26: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/mach-imx/hotplug.c:58:2: error: implicit declaration of function ‘msecs_to_jiffies’ [-Werror=implicit-function-declaration]
arch/arm/mach-imx/hotplug.c:61:3: error: implicit declaration of function ‘time_after’ [-Werror=implicit-function-declaration]

Fix them by adding the needed inclusion and declaration.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NOlof Johansson <olof@lixom.net>

If a board isn't using twl4030, then dtc will complain about the missing
phandle (which is in twl4030.dtsi).  Move the phy declaration to the dts
files.
Signed-off-by: NJason Cooper <jason@lakedaemon.net>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Commit 6770b211 (ARM: OMAP2+: Export SoC information to userspace)
had some broken return value handling as noted by Russell King:

+       soc_dev = soc_device_register(soc_dev_attr);
+       if (IS_ERR_OR_NULL(soc_dev)) {
+               kfree(soc_dev_attr);
+               return;
+       }
+
+       parent = soc_device_to_device(soc_dev);
+       if (!IS_ERR_OR_NULL(parent))
+               device_create_file(parent, &omap_soc_attr);

This is nonsense.  For the first, IS_ERR() is sufficient.  For the second,
tell me what error checking is required in the return value of this
function:

struct device *soc_device_to_device(struct soc_device *soc_dev)
{
        return &soc_dev->dev;
}

when you've already determined that the passed soc_dev is a valid pointer.
If you read the comments against the prototype:

/**
 * soc_device_to_device - helper function to fetch struct device
 * @soc: Previously registered SoC device container
 */
struct device *soc_device_to_device(struct soc_device *soc);

if "soc" is valid, it means the "previously registered SoC device container"
must have succeeded and that can only happen if the struct device has been
registered.  Ergo, there will always be a valid struct device pointer for
any registered SoC device container.  Therefore, if soc_device_register()
succeeds, then the return value from soc_device_to_device() will always be
valid and no error checking of it is required.

Simples.  The rule as ever applies here: get to know the APIs your using
and don't fumble around in the dark hoping that you'll get this stuff
right.

Fix it as noted by Russell.
Reported-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The bootloader configures the pins, but has pull bits
set without pull enable bits. While this is harmless,
and won't do anything, it seems to cause confusion at
least for me every time looking at the pin configuration.
Fix it for DT based boot.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add GPMC data node to AM33XX device tree file.
Signed-off-by: NPhilip Avinash <avinashphilip@ti.com>
Acked-by: NPeter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: NPekon Gupta <pekon@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

commit d16fb25d (ARM: dts: OMAP4460: Add CPU OPP table)
introduced wrong OPP voltages per OPP by mistake. Sync the OPP
tables with existing OMAP4460 OPP data in
arch/arm/mach-omap2/opp4xxx_data.c
Signed-off-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

commit 3027e267 (ARM: dts: OMAP36xx: Add CPU OPP table)
introduced wrong OPP voltages per OPP by mistake. Sync the OPP
tables with existing OMAP36xx OPP data in
arch/arm/mach-omap2/opp3xxx_data.c
Signed-off-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Boards supported upstream all use TWL6040 as audio codec, enable the common
ASoC machine driver by default for them.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: NJyri Sarha <jsarha@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add support for chip id detection of AM335x PG2.1 Silicon.

Currently omap3xxx_check_revision() detects PG1.0 and PG2.0 only,
this patch extends it by adding PG2.1 Si support.
Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch adds GPIO pins found on AM/DM37x.
Signed-off-by: NChristoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add the missing iounmap() before return from omap1_system_dma_init()
in the error handling case.
Also removed platform_device_del() on add resources error case which
cause dup device delete.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NTony Lindgren <tony@atomide.com>

If DEBUG_LL and earlyprintk are enabled, and omap-serial.c is compiled
as a module, the kernel boot hangs early as the clocks for serial port
are cut while earlyprintk still uses the port.

The problem is a race between the late_initcall for omap_device (which
idles devices that have no drivers) and the late_initcall in
kernel/printk.c which turns off the earlyconsole.   Any printks
that happen between this omap_device late initcall and the earlyconsole
late initcall will crash when accessing the UART.

The fix is to ensure the omap_device initcall happens after the
earlyconsole initcall.
Reported-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NKevin Hilman <khilman@linaro.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Commit 9fdca9df (spi: omap2-mcspi: convert to module_platform_driver)
broke the SPI display/panel driver probe on RX-51/N900. The exact cause is
not fully understood, but it seems to be related to the probe order. SPI
communication to the panel driver (spi1.2) fails unless the touchscreen
(spi1.0) has been probed/initialized before. When the omap2-mcspi driver
was converted to a platform driver, it resulted in that the devices are
probed immediately after the board registers them in the order they are
listed in the board file.

Fix the issue by moving the touchscreen before the panel in the SPI
device list.

The patch fixes the following failure:

[    1.260955] acx565akm spi1.2: invalid display ID
[    1.265899] panel-acx565akm display0: acx_panel_probe panel detect error
[    1.273071] omapdss CORE error: driver probe failed: -19
Tested-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Joni Lapilainen <joni.lapilainen@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: stable@vger.kernel.org
Signed-off-by: NTony Lindgren <tony@atomide.com>

On Beagle xM Rev. Ax/Bx, the USB power enable GPIO logic is
reversed when compared to other revisions i.e. it is
active high instead of active low.

Use the beagle_config.usb_pwr_level flag correctly so that
the power regulator can be configured at runtime.
Signed-off-by: NRoger Quadros <rogerq@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Commit ff5c9059 (ARM: dts: OMAP3+: Correct gpio #interrupts-cells
property) updated the number of interrupt cells required for configuring
gpios as interrupts for other devices (such as ethernet controllers).
This update allowed the interrupt type (edge, level, etc) to be
configured via device-tree (as described in the
Documentation/devicetree/bindings/gpio/gpio-omap.txt).

This broke ethernet support on the OMAP4 SDP board that defines a gpio
as the ethernet IRQ because the interrupt type (level, edge, etc) was
not getting configured correctly. This board use the ks8851 ethernet
chip which has an active low interrupt. Fix this by defining the gpio
interrupt as active-low in the device-tree binding.

Please note that the OMAP4-VAR-SOM also uses the same ethernet
controller and it is expected it will have the same problem. So the
same fix is also applied to this board.
Signed-off-by: NJon Hunter <jon-hunter@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

I badly screwed up the merge in commit 6fa52ed3 ("Merge tag
'drivers-for-linus' of git://git.kernel.org/pub/.../arm-soc") by
incorrectly taking the arch/arm/mach-omap2/* data fully from the merge
target because the 'drivers-for-linus' branch seemed to be a proper
superset of the duplicate ARM commits.

That was bogus: commit ff931c82 ("ARM: OMAP: clocks: Delay clk inits
atleast until slab is initialized") only existed in head, and the
changes to arch/arm/mach-omap2/timer.c from that commit got list.

Re-doing the merge more carefully, I do think this part was the only
thing I screwed up.  Knock wood.
Reported-by: NTony Lindgren <tony@atomide.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/arm/mach-msm/last_radio_log.c: In function 'msm_init_last_radio_log':
arch/arm/mach-msm/last_radio_log.c:69:7: error: dereferencing pointer to incomplete type

arch/cris/kernel/profile.c: In function 'init_cris_profile':
arch/cris/kernel/profile.c:79:8: error: dereferencing pointer to incomplete type

Use proc_set_size(), cfr. commit 271a15ea
("proc: Supply PDE attribute setting accessor functions")
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Clean up some trailing whitespace issues in arch/arm/Makefile.
Signed-off-by: NDaniel Tang <dt.tangr@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The CPU used in Marvell Dove SoCs is a PJ4 Sheeva core. Using
CONFIG_CPU_PJ4 instead of CONFIG_CPU_V7 will enable iWMMXt
extensions on Dove.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: NJason Cooper <jason@lakedaemon.net>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

After the device names are created using PLATFORM_DEVID_AUTO, the old
device names given in usb_bind_phy are no longer valid causing the musb
controller not to get the phy reference. Updated the usb_bind_phy with
the new device names to get MUSB functional in omap4 panda.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Looks like the timer.c fixes in commit ff931c82 (ARM: OMAP: clocks:
Delay clk inits atleast until slab is initialized) got lost in a
merge with da4a686a (ARM: smp_twd: convert to use CLKSRC_OF init).

Without the omap_clk_init() calls none of OMAP family of devices
boot.
Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com>
[tony@atomide.com: updated comments to describe merge error]
Signed-off-by: NTony Lindgren <tony@atomide.com>

Cc: stable@vger.kernel.org
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>