The change adds support of LPC18xx/LPC43xx GPIO pin interrupt controller
block within SoC GPIO controller. The new interrupt controller driver
allows to configure and capture edge or level interrupts on 8 arbitrary
selectedinput GPIO pins, and lift the signals to be reported as NVIC rising
edge interrupts. Configuration of a particular GPIO pin to serve as
interrupt and its mapping to an interrupt on NVIC is done by SCU pin
controller, for more details see description of 'nxp,gpio-pin-interrupt'
device tree property of a GPIO pin [1].
From LPC18xx and LPC43xx User Manuals the GPIO controller consists of
the following blocks:
* GPIO pin interrupt block at 0x40087000, this change adds its support,
* GPIO GROUP0 interrupt block at 0x40088000,
* GPIO GROUP1 interrupt block at 0x40089000,
* GPIO port block at 0x400F4000, it is supported by the original driver.
While all 4 sub-controller blocks have their own I/O addresses, moreover
all 3 interrupt blocks are APB0 peripherals and high-speed GPIO block is
an AHB slave, according to the hardware manual the GPIO controller is
seen as a single block, and 4 sub-controllers have the shared reset signal
RGU #28 and clock to register interface CLK_CPU_GPIO on CCU1.
Likely support of two GPIO group interrupt blocks won't be added in short
term, because the mechanism to mask several interrupt sources is not well
defined.
[1] Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This is a non-functional change, it simplifies multiple access to
'struct device' pointer derived from a platform device pointer,
the new local variable will also be used in the following changes.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Replace GPLv2 header with the SPDX identifier.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The error cases of mediatek_gpio_bank_probe() would go unnoticed (except
for the dev_err() messages). The probe function should return an error
if one of the banks failed to initialize properly indicated by
not returning non-0.
Fixes: 4ba9c3afda ("gpio: mt7621: Add a driver for MT7621")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
kasprintf() may return NULL on failure of internal allocation thus the
assigned label is not safe if not explicitly checked. On error
mediatek_gpio_bank_probe() returns negative values so -ENOMEM in the
(unlikely) failure case should be fine here.
Fixes: 4ba9c3afda ("gpio: mt7621: Add a driver for MT7621")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
I'll be getting all GPIO e-mail now, so remove my name from reviewers
of gpio-mockup.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The change simplifies dereferences to the mediated struct device, also
it allows to limit the scope of the platform device usage to probe and
remove functions only.
Non-functional change.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When retrieveing CD (card detect) and WP (write protect)
GPIO handles from the device tree, make sure to assign
them active low by default unless the "cd-inverted" or
"wp-inverted" properties are set. These properties mean
that respective signal is active HIGH since the SDHCI
specification stipulates that this kind of signals
should be treated as active LOW.
If the twocell GPIO flag is also specified as active
low, well that's nice and we will silently ignore the
tautological specification.
If however the GPIO line is specified as active low
in the GPIO flasg cell and "cd-inverted" or "wp-inverted"
is also specified, the latter takes precedence and we
print a warning.
The current effect on the MMC slot-gpio core are as
follows:
For CD GPIOs: no effect. The current code in
mmc/core/host.c calls mmc_gpiod_request_cd() with
the "override_active_level" argument set to true,
which means that whatever the GPIO descriptor
thinks about active low/high will be ignored, the
core will use the MMC_CAP2_CD_ACTIVE_HIGH to keep
track of this and reads the raw value from the
GPIO descriptor, totally bypassing gpiolibs inversion
semantics. I plan to clean this up at a later point
passing the handling of inversion semantics over
to gpiolib, so this patch prepares the ground for
that.
Fow WP GPIOs: this is probably fixing a bug, because
the code in mmc/core/host.c calls mmc_gpiod_request_ro()
with the "override_active_level" argument set to false,
which means it will respect the inversion semantics of
the gpiolib and ignore the MMC_CAP2_RO_ACTIVE_HIGH
flag for everyone using this through device tree.
However the code in host.c confusingly goes to great
lengths setting up the MMC_CAP2_RO_ACTIVE_HIGH flag
from the GPIO descriptor and by reading the "wp-inverted"
property of the node. As far as I can tell this is all
in vain and the inversion is broken: device trees that
use "wp-inverted" do not work as intended, instead the
only way to actually get inversion on a line is by
setting the second cell flag to GPIO_ACTIVE_HIGH (which
will be the default) or GPIO_ACTIVE_LOW if they want
the proper MMC semantics. Presumably all device trees do
this right but we need to parse and handle this properly.
Cc: linux-mmc@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The sub-nodes should not be called gpio-controller, but simply gpio.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It's easy to verify that the change of drivers/gpio/gpiolib-of.c license
header to SPDX standard changes the license from GPLv2+ to GPLv2, and
this change corrects it.
Fixes: dae5f0afcf ("gpio: Use SPDX header for core library")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Remove linux/gpio/driver.h which is included more than once
Signed-off-by: Brajeswar Ghosh <brajeswar.linux@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some SoCs need the gpio clock to be enabled before accessing
HW registers. This patch add the optional clock handling.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
During noirq suspend/resume phase, GPIO irq could arrive
and its registers like IMR will be changed by irq handle
process, to make the GPIO registers exactly when it is
powered ON after resume, move the GPIO noirq suspend/resume
callback to syscore suspend/resume phase, local irq is
disabled at this phase so GPIO registers are atomic.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Drop the broken to_gpio_irq_chip() container_of() helper, which would
break the build for anyone who tries to use it.
Specifically, struct gpio_irq_chip only holds a pointer to a struct
irq_chip so using container_of() on an irq-chip pointer makes no sense.
Fixes: da80ff81a8 ("gpio: Move irqchip into struct gpio_irq_chip")
Cc: Thierry Reding <treding@nvidia.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit 48207d7595 ("gpio: drop devm_gpiochip_remove()") dropped the
last user of drop devm_gpio_chip_match(), causing a defined but not used
compilation warning. Fix it by removing the function.
Fixes: 48207d7595 ("gpio: drop devm_gpiochip_remove()")
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On some SoCs(e.g. MX7ULP), GPIO clock is gatable and maybe
disabled by default. Users have to make sure it's enabled before
being able to access controller registers, otherwise an external
abort error may occur. Let's add the optional clocks property to
handle this case.
For ULP GPIO clock, it includes two separate clocks: one is for
GPIO controller Input/Output function clock while another is
GPIO port control clock for interrupt function.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: linux-gpio@vger.kernel.org
Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
gpiod_request_commit() copies the pointer to the label passed as
an argument only to be used later. But there's a chance the caller
could immediately free the passed string(e.g., local variable).
This could trigger a use after free when we use gpio label(e.g.,
gpiochip_unlock_as_irq(), gpiochip_is_requested()).
To be on the safe side: duplicate the string with kstrdup_const()
so that if an unaware user passes an address to a stack-allocated
buffer, we won't get the arbitrary label.
Also fix gpiod_set_consumer_name().
Signed-off-by: Muchun Song <smuchun@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Trivial fix to clean up an indentation issue, remove space
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Keeping the irq_chip definition static will make it shared with multiple
giochips in the system. This practice is considered to be bad and now we
will get the below warning from gpiolib core:
"detected irqchip that is shared with multiple gpiochips: please fix the
driver."
Hence, move the irq_chip definition from static to `struct pl061` for
using a unique irq_chip for each gpiochip.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There is hardly any reason to call devm_gpiochip_remove() because the
driver core handles calling gpiochip_remove() automatically.
To make it harder to introduce new (and probably unneeded) callers, drop
the function.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch masks the read inputs with the word mask in order to ensure
only requested input states are returned in the bits array.
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch masks the read inputs with the word mask in order to ensure
only requested input states are returned in the bits array.
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch masks the read inputs with the word mask in order to ensure
only requested input states are returned in the bits array.
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch masks the read inputs with the word mask in order to ensure
only requested input states are returned in the bits array.
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch masks the read inputs with the word mask in order to ensure
only requested input states are returned in the bits array.
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch masks the read inputs with the word mask in order to ensure
only requested input states are returned in the bits array.
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
With a new subsystem co-maintainer on board it is good to draw
up the ongoing changes and future plans for the subsystem, i.e.
what is in my head and being worked on long term.
What better way is there than simply adding a TODO right in the
code and send it out to the mailing list.
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Full filesystem authentication feature,
UBIFS is now able to have the whole filesystem structure
authenticated plus user data encrypted and authenticated.
- Minor cleanups
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Merge tag 'tags/upstream-4.20-rc1' of git://git.infradead.org/linux-ubifs
Pull UBIFS updates from Richard Weinberger:
- Full filesystem authentication feature, UBIFS is now able to have the
whole filesystem structure authenticated plus user data encrypted and
authenticated.
- Minor cleanups
* tag 'tags/upstream-4.20-rc1' of git://git.infradead.org/linux-ubifs: (26 commits)
ubifs: Remove unneeded semicolon
Documentation: ubifs: Add authentication whitepaper
ubifs: Enable authentication support
ubifs: Do not update inode size in-place in authenticated mode
ubifs: Add hashes and HMACs to default filesystem
ubifs: authentication: Authenticate super block node
ubifs: Create hash for default LPT
ubfis: authentication: Authenticate master node
ubifs: authentication: Authenticate LPT
ubifs: Authenticate replayed journal
ubifs: Add auth nodes to garbage collector journal head
ubifs: Add authentication nodes to journal
ubifs: authentication: Add hashes to index nodes
ubifs: Add hashes to the tree node cache
ubifs: Create functions to embed a HMAC in a node
ubifs: Add helper functions for authentication support
ubifs: Add separate functions to init/crc a node
ubifs: Format changes for authentication support
ubifs: Store read superblock node
ubifs: Drop write_node
...
Pull more timer updates from Thomas Gleixner:
"A set of commits for the new C-SKY architecture timers"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
dt-bindings: timer: gx6605s SOC timer
clocksource/drivers/c-sky: Add gx6605s SOC system timer
dt-bindings: timer: C-SKY Multi-processor timer
clocksource/drivers/c-sky: Add C-SKY SMP timer
private struct, and a few bug fixes.
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Merge tag 'ntb-4.20' of git://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"Fairly minor changes and bug fixes:
NTB IDT thermal changes and hook into hwmon, ntb_netdev clean-up of
private struct, and a few bug fixes"
* tag 'ntb-4.20' of git://github.com/jonmason/ntb:
ntb: idt: Alter the driver info comments
ntb: idt: Discard temperature sensor IRQ handler
ntb: idt: Add basic hwmon sysfs interface
ntb: idt: Alter temperature read method
ntb_netdev: Simplify remove with client device drvdata
NTB: transport: Try harder to alloc an aligned MW buffer
ntb: ntb_transport: Mark expected switch fall-throughs
ntb: idt: Set PCIe bus address to BARLIMITx
NTB: ntb_hw_idt: replace IS_ERR_OR_NULL with regular NULL checks
ntb: intel: fix return value for ndev_vec_mask()
ntb_netdev: fix sleep time mismatch
Pull scheduler fixes from Ingo Molnar:
"A memory (under-)allocation fix and a comment fix"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/topology: Fix off by one bug
sched/rt: Update comment in pick_next_task_rt()
Pull x86 fixes from Ingo Molnar:
"A number of fixes and some late updates:
- make in_compat_syscall() behavior on x86-32 similar to other
platforms, this touches a number of generic files but is not
intended to impact non-x86 platforms.
- objtool fixes
- PAT preemption fix
- paravirt fixes/cleanups
- cpufeatures updates for new instructions
- earlyprintk quirk
- make microcode version in sysfs world-readable (it is already
world-readable in procfs)
- minor cleanups and fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
compat: Cleanup in_compat_syscall() callers
x86/compat: Adjust in_compat_syscall() to generic code under !COMPAT
objtool: Support GCC 9 cold subfunction naming scheme
x86/numa_emulation: Fix uniform-split numa emulation
x86/paravirt: Remove unused _paravirt_ident_32
x86/mm/pat: Disable preemption around __flush_tlb_all()
x86/paravirt: Remove GPL from pv_ops export
x86/traps: Use format string with panic() call
x86: Clean up 'sizeof x' => 'sizeof(x)'
x86/cpufeatures: Enumerate MOVDIR64B instruction
x86/cpufeatures: Enumerate MOVDIRI instruction
x86/earlyprintk: Add a force option for pciserial device
objtool: Support per-function rodata sections
x86/microcode: Make revision and processor flags world-readable
Pull perf updates and fixes from Ingo Molnar:
"These are almost all tooling updates: 'perf top', 'perf trace' and
'perf script' fixes and updates, an UAPI header sync with the merge
window versions, license marker updates, much improved Sparc support
from David Miller, and a number of fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (66 commits)
perf intel-pt/bts: Calculate cpumode for synthesized samples
perf intel-pt: Insert callchain context into synthesized callchains
perf tools: Don't clone maps from parent when synthesizing forks
perf top: Start display thread earlier
tools headers uapi: Update linux/if_link.h header copy
tools headers uapi: Update linux/netlink.h header copy
tools headers: Sync the various kvm.h header copies
tools include uapi: Update linux/mmap.h copy
perf trace beauty: Use the mmap flags table generated from headers
perf beauty: Wire up the mmap flags table generator to the Makefile
perf beauty: Add a generator for MAP_ mmap's flag constants
tools include uapi: Update asound.h copy
tools arch uapi: Update asm-generic/unistd.h and arm64 unistd.h copies
tools include uapi: Update linux/fs.h copy
perf callchain: Honour the ordering of PERF_CONTEXT_{USER,KERNEL,etc}
perf cs-etm: Correct CPU mode for samples
perf unwind: Take pgoff into account when reporting elf to libdwfl
perf top: Do not use overwrite mode by default
perf top: Allow disabling the overwrite mode
perf trace: Beautify mount's first pathname arg
...
Pull irq fixes from Ingo Molnar:
"An irqchip driver fix and a memory (over-)allocation fix"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe function
irq/matrix: Fix memory overallocation
With the addition of the NUMA identity level, we increased @level by
one and will run off the end of the array in the distance sort loop.
Fixed: 051f3ca02e ("sched/topology: Introduce NUMA identity node sched domain")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
A few fixes who have come in near or during the merge window:
- Removal of a VLA usage in Marvell mpp platform code
- Enable some IPMI options for ARM64 servers by default, helps testing
- Enable PREEMPT on 32-bit ARMv7 defconfig
- Minor fix for stm32 DT (removal of an unused DMA property)
- Bugfix for TI OMAP1-based ams-delta (-EINVAL -> IRQ_NOTCONNECTED)
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A few fixes who have come in near or during the merge window:
- Removal of a VLA usage in Marvell mpp platform code
- Enable some IPMI options for ARM64 servers by default, helps
testing
- Enable PREEMPT on 32-bit ARMv7 defconfig
- Minor fix for stm32 DT (removal of an unused DMA property)
- Bugfix for TI OMAP1-based ams-delta (-EINVAL -> IRQ_NOTCONNECTED)"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: stm32: update HASH1 dmas property on stm32mp157c
ARM: orion: avoid VLA in orion_mpp_conf
ARM: defconfig: Update multi_v7 to use PREEMPT
arm64: defconfig: Enable some IPMI configs
soc: ti: QMSS: Fix usage of irq_set_affinity_hint
ARM: OMAP1: ams-delta: Fix impossible .irq < 0
- Fix W+X page (mark RO) allocated by the arm64 kprobes code
- Makefile fix for .i files in out of tree modules
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull more arm64 updates from Catalin Marinas:
- fix W+X page (mark RO) allocated by the arm64 kprobes code
- Makefile fix for .i files in out of tree modules
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: kprobe: make page to RO mode when allocate it
arm64: kdump: fix small typo
arm64: makefile fix build of .i file in external module case
