This file require minimum adjustments to be a valid ReST file.
Do it, in order to be able to parse it with Sphinx.
We opted to remove section numbers, as this can be automatically
generated on Sphinx, by using :numbered: tag at index.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This file require minimum adjustments to be a valid ReST file. Do it, in
order to be able to parse it with Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This file contains lots of tables, but none formatted using the ReST
syntax. Adjust them to match the ReST syntax and add a title for the
document.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Turn ALPS documentation into a valid ReST file, so it could be parsed with
Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This file require minimum adjustments to be a valid ReST.
Do it, in order to be able to parse it with Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add pm8xxx_regs for this PMIC and the device tree match table entry.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some PMIC vibrator IPs use a separate enable register to turn the
vibrator on and off. To detect if a vibrator uses this feature, rely on
the enable_mask being non-zero.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
In order to prepare this driver to support other vibrators of the same
kind, move some hardcoded values to a structure holding register
parameters (address, mask, shit of the control register).
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
sparse says:
sur40.c:372:40: warning: restricted __le32 degrades to integer
the header's data is __le32 so we need to convert it before comparing.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
gpiod API allows standard way of specifying GPIO polarity and takes it into
account when reading or setting GPIO state. It also allows us to switch to
common way of obtaining GPIO descriptor and away form legacy platform data.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of keying interrupt trigger off GPIO polarity, let's rely on
platform code to set it up properly for us.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of having standard interrupt handler and manually firing work item
to perform I2C reads, let's switch to threaded interrupts, which were
designed specifically for this purpose.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We are reading GPIO state in a non-atomic context (workqueue), so we can
use "cansleep" variant, and thus make the driver available on systems where
GPIO controllers require sleeping when reading GPIO state.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of expecting that GPIO is always interrupt source, let's use
interrupt specified in I2C client.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Instead of manually converting big endian data on wire into host
endianness, let's use helpers to do that for us. It might save us
a few cycles if host endianness matches what's on wire.
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We are not registering drivers, but transport devices (AKA sensors), so
let's call them that.
Also let's rename "retval" to "error" in probe() functions as the variables
are used to store error codes.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is no reason to copy structures field-by-filed when we can copy
elements at once.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The mapping table holds address in LE form, so we should convert it
to CPU when comparing it.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If rmi_enable_sensor() fails in rmi_driver_probe(), we should not return
immediately, but disable IRQs and tear down function list.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The rest of the kernel uses u8, u16, etc for data coming form hardware,
let's switch ti using u8 here as well.
Also turn pkt_type into an enum.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Let's stop using -1 as a universal return value and instead propagate
errors from underlying calls up the stack.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use standard infrastructure, such as BIT and GENMASK, instead of rolling
bitmasks by hand.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Factor out querying and parsing 3-byte response into an integer value.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Now that i2c_client_type structure is exported, we can use it, instead
of i2c_adapter_type, when looking for devices that are i2c clients.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'v4.11-rc5' into next
Sync up with mainline to bring in changes to input subsystem merged
through other trees.
The driver contains compatible strings for different models, but the DT
binding doc only lists one of them. Add the remaining to the document.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some form factors (detachables/tablets) may not have a keyboard and
thus user may have to resort to using a defined EC UI to send sysrq(s)
to the kernel in order to collect crash info etc. This UI typically
is in the form of user pressing volume / power buttons in some specific
sequence and for some specific time. Add a new EC event that allows EC
to communicate the sysrq to the AP.
(We're skipping event number 5 because it has been reserved for
something else)
Signed-off-by: Rajat Jain <rajatja@google.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When trying to destroy platform data after destruction of SMbus companion,
we need to make sure that we are actually dealing with an SMB companion
device, and not some random I2C client device.
Fixes: 8eb92e5c91 ("Input: psmouse - add support for SMBus companions")
Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Couple of minor fixes for 4.11
- array bound fix for __get_unmap_pool()
- cyclic period splitting for bcm2835
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Merge tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"A couple of minor fixes for 4.11:
- array bound fix for __get_unmap_pool()
- cyclic period splitting for bcm2835"
* tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: Fix array index out of bounds warning in __get_unmap_pool()
dmaengine: bcm2835: Fix cyclic DMA period splitting
Pull x86 fixes from Thomas Gleixner:
"This update provides:
- prevent KASLR from randomizing EFI regions
- restrict the usage of -maccumulate-outgoing-args and document when
and why it is required.
- make the Global Physical Address calculation for UV4 systems work
correctly.
- address a copy->paste->forgot-edit problem in the MCE exception
table entries.
- assign a name to AMD MCA bank 3, so the sysfs file registration
works.
- add a missing include in the boot code"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Include missing header file
x86/mce/AMD: Give a name to MCA bank 3 when accessed with legacy MSRs
x86/build: Mostly disable '-maccumulate-outgoing-args'
x86/mm/KASLR: Exclude EFI region from KASLR VA space randomization
x86/mce: Fix copy/paste error in exception table entries
x86/platform/uv: Fix calculation of Global Physical Address
Pull scheduler fixes from Thomas Gleixner:
"This update provides:
- make the scheduler clock switch to unstable mode smooth so the
timestamps stay at microseconds granularity instead of switching to
tick granularity.
- unbreak perf test tsc by taking the new offset into account which
was added in order to proveide better sched clock continuity
- switching sched clock to unstable mode runs all clock related
computations which affect the sched clock output itself from a work
queue. In case of preemption sched clock uses half updated data and
provides wrong timestamps. Keep the math in the protected context
and delegate only the static key switch to workqueue context.
- remove a duplicate header include"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/headers: Remove duplicate #include <linux/sched/debug.h> line
sched/clock: Fix broken stable to unstable transfer
sched/clock, x86/perf: Fix "perf test tsc"
sched/clock: Fix clear_sched_clock_stable() preempt wobbly
Pull EFI fix from Thomas Gleixner:
"Downgrade the missing ESRT header printk to warning level and remove a
useless error printk which just generates noise for no value"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/esrt: Cleanup bad memory map log messages
Pull timer fixes from Thomas Gleixner:
"Two small fixes for the new CLKEVT_OF infrastructure"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
vmlinux.lds: Add __clkevt_of_table to kernel
clockevents: Fix syntax error in clkevt-of macro
Pull irq fixes from Thomas Gleixner:
"Two small fixlets:
- select a required Kconfig to make the MVEBU driver compile
- add the missing MIPS local GIC interrupts which prevent drivers to
probe successfully"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mips-gic: Fix Local compare interrupt
irqchip/mvebu-odmi: Select GENERIC_MSI_IRQ_DOMAIN
Pull core fix from Thomas Gleixner:
"Prevent leaking kernel memory via /proc/$pid/syscall when the queried
task is not in a syscall"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lib/syscall: Clear return values when no stack
Pull parisc fixes from Helge Deller:
"Al Viro reported that - in case of read faults - our copy_from_user()
implementation may claim to have copied more bytes than it actually
did. In order to fix this bug and because of the way how gcc optimizes
register usage for inline assembly in C code, we had to replace our
pa_memcpy() function with a pure assembler implementation.
While fixing the memcpy bug we noticed some other issues with our
get_user() and put_user() functions, e.g. nested faults may return
wrong data. This is now fixed by a common fixup handler for
get_user/put_user in the exception handler which additionally makes
generated code smaller and faster.
The third patch is a trivial one-line fix for a patch which went in
during 4.11-rc and which avoids stalled CPU warnings after power
shutdown (for parisc machines which can't plug power off themselves).
Due to the rewrite of pa_memcpy() into assembly this patch got bigger
than what I wanted to have sent at this stage.
Those patches have been running in production during the last few days
on our debian build servers without any further issues"
* 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Avoid stalled CPU warnings after system shutdown
parisc: Clean up fixup routines for get_user()/put_user()
parisc: Fix access fault handling in pa_memcpy()
Thirteen small fixes: The hopefully final effort to get the lpfc nvme
kconfig problems sorted, there's one important sg fix (user can induce
read after end of buffer) and one minor enhancement (adding an extra
PCI ID to qedi). The rest are a set of minor fixes, which mostly occur
as user visible in error legs or on specific devices.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Thirteen small fixes: The hopefully final effort to get the lpfc nvme
kconfig problems sorted, there's one important sg fix (user can induce
read after end of buffer) and one minor enhancement (adding an extra
PCI ID to qedi). The rest are a set of minor fixes, which mostly occur
as user visible in error legs or on specific devices"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: remove the duplicated checking for supporting clkscaling
scsi: lpfc: fix building without debugfs support
scsi: lpfc: Fix PT2PT PRLI reject
scsi: hpsa: fix volume offline state
scsi: libsas: fix ata xfer length
scsi: scsi_dh_alua: Warn if the first argument of alua_rtpg_queue() is NULL
scsi: scsi_dh_alua: Ensure that alua_activate() calls the completion function
scsi: scsi_dh_alua: Check scsi_device_get() return value
scsi: sg: check length passed to SG_NEXT_CMD_LEN
scsi: ufshcd-platform: remove the useless cast in ERR_PTR/IS_ERR
scsi: qedi: Add PCI device-ID for QL41xxx adapters.
scsi: aacraid: Fix potential null access
scsi: qla2xxx: Fix crash in qla2xxx_eh_abort on bad ptr
Merge misc fixes from Andrew Morton:
"11 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
kasan: do not sanitize kexec purgatory
drivers/rapidio/devices/tsi721.c: make module parameter variable name unique
mm/hugetlb.c: don't call region_abort if region_chg fails
kasan: report only the first error by default
hugetlbfs: initialize shared policy as part of inode allocation
mm: fix section name for .data..ro_after_init
mm, hugetlb: use pte_present() instead of pmd_present() in follow_huge_pmd()
mm: workingset: fix premature shadow node shrinking with cgroups
mm: rmap: fix huge file mmap accounting in the memcg stats
mm: move mm_percpu_wq initialization earlier
mm: migrate: fix remove_migration_pte() for ksm pages
Here are some small USB fixes for 4.11-rc5.
The usual xhci fixes are here, as well as a fix for
yet-another-bug-found-by-KASAN, those developers are doing great stuff
here. And there's a phy build warning fix that showed up in 4.11-rc1.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 4.11-rc5.
The usual xhci fixes are here, as well as a fix for yet-another-bug-
found-by-KASAN, those developers are doing great stuff here.
And there's a phy build warning fix that showed up in 4.11-rc1.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: phy: isp1301: Fix build warning when CONFIG_OF is disabled
xhci: Manually give back cancelled URB if we can't queue it for cancel
xhci: Set URB actual length for stopped control transfers
xhci: plat: Register shutdown for xhci_plat
USB: fix linked-list corruption in rh_call_control()
Here are some small fixes for some serial drivers and Kconfig help text
for 4.11-rc5. Nothing major here at all, a few things resolving
reported bugs in some random serial drivers.
I don't think these made the last linux-next due to me getting to them
yesterday, but I am not sure, they might have snuck in. The patches
only affect drivers that the maintainers of sent me these patches for,
so we should be safe here :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small fixes for some serial drivers and Kconfig help
text for 4.11-rc5. Nothing major here at all, a few things resolving
reported bugs in some random serial drivers.
I don't think these made the last linux-next due to me getting to them
yesterday, but I am not sure, they might have snuck in. The patches
only affect drivers that the maintainers of sent me these patches for,
so we should be safe here :)"
* tag 'tty-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: pl011: fix earlycon work-around for QDF2400 erratum 44
serial: 8250_EXAR: fix duplicate Kconfig text and add missing help text
tty/serial: atmel: fix TX path in atmel_console_write()
tty/serial: atmel: fix race condition (TX+DMA)
serial: mxs-auart: Fix baudrate calculation
This essentially reverts commit baf28d91e7 ("Input: bma150 - avoid
binding to bma180 if IIO bma180 driver present") and commit ef3714fdbc
("Input: bma150 - extend chip detection for bma180")
Rationale: initially (2012) the GTA04 device using a bma180 chip simply
referenced the bma150 platform driver in its board file [1] which happened
to work in all scenarios that were tested.
When conversion to DT started (2014), we needed to make the driver be still
recognised. Hence we introduced the compatibility to the bma180 chip in
Linux 3.15-rc5 [2] without further checks if it is really 100% compatible.
This worked flawlessly for years with the GTA04 device.
Recently (2016), Hans de Goede pointed out that the chips are not as
similar as they appeared and the driver works with the bma180 for the GTA04
only by good luck. He proposed to remove the bma180 support completely [3],
but we still did need it until we have a replacement. Thus, a conditional
compile was added.
We have now developed a generic iio-input-bridge which works with any 2 or
3 axis iio based accelerometer. It has been tested on GTA04 and Pyra and
works as expected. Therefore we can remove the bma180 support from this
driver completely. User-space API compatibility can be restored by using
the iio-input-bridge.
Maybe it is time to convert the bma150 driver to iio as well and retire the
accelerometer input drivers completely but this is a different story and
task.
[1]: https://github.com/neilbrown/linux/blob/gta04/3.2.y/arch/arm/mach-omap2/board-omap3gta04.c#L976
[2]: https://patchwork.kernel.org/patch/3961171/
[3]: https://patchwork.kernel.org/patch/9325481/
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- Drop the unconditional setting of the '-Os' gcc flag from the ACPI
Makefile to make the function graph tracer work correctly with the
ACPI subsystem (Josh Poimboeuf).
- Add missing synchronize_rcu() to ghes_remove() which removes an
element from an RCU-protected list, but fails to synchronize it
properly afterward (James Morse).
- Fix two problems related to IOAPIC hotplug, a local variable
initialization in setup_res() and the creation of platform
device objects for IO(x)APICs which are (a) unused and (b) leaked
on hot-removal (Joerg Roedel).
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Merge tag 'acpi-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix two issues related to IOAPIC hotplug, an overzealous build
optimization that prevents the function graph tracer from working with
the ACPI subsystem correctly and an RCU synchronization issue in the
ACPI APEI code.
Specifics:
- drop the unconditional setting of the '-Os' gcc flag from the ACPI
Makefile to make the function graph tracer work correctly with the
ACPI subsystem (Josh Poimboeuf).
- add missing synchronize_rcu() to ghes_remove() which removes an
element from an RCU-protected list, but fails to synchronize it
properly afterward (James Morse).
- fix two problems related to IOAPIC hotplug, a local variable
initialization in setup_res() and the creation of platform device
objects for IO(x)APICs which are (a) unused and (b) leaked on
hot-removal (Joerg Roedel)"
* tag 'acpi-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: Fix incompatibility with mcount-based function graph tracing
ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal
ACPI: Do not create a platform_device for IOAPIC/IOxAPIC
ACPI: ioapic: Clear on-stack resource before using it
- Symbolic links from CPU directories to the corresponding cpufreq
policy directories in sysfs are not created during initialization
in some cases which confuses user space, so prevent that from
happening (Rafael Wysocki).
- The powernv cpuidle driver fails to pass a correct cpumaks to
the cpuidle core in some cases which causes subsequent failures
to occur, so fix it (Vaidyanathan Srinivasan).
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Merge tag 'pm-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a cpufreq core issue with the initialization of the cpufreq
sysfs interface and a cpuidle powernv driver initialization issue.
Specifics:
- symbolic links from CPU directories to the corresponding cpufreq
policy directories in sysfs are not created during initialization
in some cases which confuses user space, so prevent that from
happening (Rafael Wysocki).
- the powernv cpuidle driver fails to pass a correct cpumaks to the
cpuidle core in some cases which causes subsequent failures to
occur, so fix it (Vaidyanathan Srinivasan)"
* tag 'pm-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle: powernv: Pass correct drv->cpumask for registration
cpufreq: Fix creation of symbolic links to policy directories
