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disable_nonboot_cpus() assumes that the lowest numbered online CPU is
the boot CPU, and that this is the correct CPU to run any power
management code on.
On x86 this is always correct, as CPU0 cannot (easily) by taken offline.
On arm64 CPU0 can be taken offline. For hibernate/resume this means we
may hibernate on a CPU other than CPU0. If the system is rebooted with
kexec 'CPU0' will be assigned to a different physical CPU. This
complicates hibernate/resume as now we can't trust the CPU numbers.
Arch code can find the correct physical CPU, and ensure it is online
before resume from hibernate begins, but also needs to influence
disable_nonboot_cpus()s choice of CPU.
Rename disable_nonboot_cpus() as freeze_secondary_cpus() and add an
argument indicating which CPU should be left standing. Follow the logic
in migrate_to_reboot_cpu() to use the lowest numbered online CPU if the
requested CPU is not online.
Add disable_nonboot_cpus() as an inline function that has the existing
behaviour.
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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i2c/for-4.9
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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ACPI 5 specification doesn't have property for the I2C bus speed but
I2cSerialBus resource descriptor which define each controller-slave
connection define the maximum speed supported by that connection.
Thus finding the maximum safe speed for the bus is to walk through all
I2cSerialBus resources that are associated to I2C controller and use the
speed of slowest connection.
Add function i2c_acpi_find_bus_speed() to the i2c-core that adapter
drivers can call prior registering itself to core.
This implies two-step walk through the I2cSerialBus resources: call to
i2c_acpi_find_bus_speed() does the first scan and finds the safe bus
speed that adapter drivers can set up. Adapter driver registration does
the second scan when i2c-core creates the I2C slaves by calling the
i2c_acpi_register_devices(). In that way the bus speed is set in case
slave device probe gets called during registration and does communication.
Previous version commit 55d38d060e99 ("i2c: core: Add function for finding
the bus speed from ACPI") got reverted due merge conflicts from
commit 525e6fabeae2 ("i2c / ACPI: add support for ACPI reconfigure
notifications").
This version is a bit bigger than previous version but is still sharing
the lowest and complicated part of I2cSerialBus lookup routines with the
existing code.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Backwards compatibility is preserved; the subnodes are in practice
optional.
However, the mux core needs to know what subnode it should examine, so add
a couple of new flags for i2c_mux_alloc for this purpose.
The rule is that if the mux core finds a 'reg' property in the appropriate
subnode, e.g. if 'reg' exists in the 'i2c-mux' subnode, then the mux core
will assume that this is an old style entry and not an i2c-mux subnode
(correspondingly for arbitrators and gates with 'i2c-arb' and 'i2c-gate').
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Peter Rosin <peda@axentia.se>
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This unifies usage with i2c_lock_bus and i2c_unlock_bus, and paves the
way for the next patch which looks a bit saner with this preparatory
work taken care of beforehand.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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SATA drives may support write same via SCT. This is useful
for setting the drive contents to a specific pattern (0's).
Translate a SCSI WRITE SAME 16 command to be either a DSM TRIM
command or an SCT Write Same command.
Based on the UNMAP flag:
- When set translate to DSM TRIM
- When not set translate to SCT Write Same
Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
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Safely overwriting the attached page to ATA format from the SCSI formatted
variant.
Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma into mlx5-shared
Mellanox ConnectX-4/Connect-IB shared code (SW part)
* net/mlx5: Add sniffer namespaces
* net/mlx5: Introduce sniffer steering hardware capabilities
* net/mlx5: Configure IB devices according to LAG state
* net/mlx5: Vport LAG creation support
* net/mlx5: Add LAG flow steering namespace
* net/mlx5: LAG demux flow table support
* net/mlx5: LAG and SRIOV cannot be used together
* net/mlx5e: Avoid port remapping of mlx5e netdev TISes
* net/mlx5: Get RoCE netdev
* net/mlx5: Implement RoCE LAG feature
* net/mlx5: Add HW interfaces used by LAG
* net/mlx5: Separate query_port_proto_oper for IB and EN
* net/mlx5: Expose mlx5e_link_mode
* net/mlx5: Update struct mlx5_ifc_xrqc_bits
* net/mlx5: Modify RQ bitmask from mlx5 ifc
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The PTM Control register (PCIe r3.1, sec 7.32.3) contains an Effective
Granularity field:
This provides information relating to the expected accuracy of the PTM
clock, but does not otherwise affect the PTM mechanism.
Set the Effective Granularity based on the PTM Root and any intervening PTM
Time Sources.
This does not set Effective Granularity for Root Complex Integrated
Endpoints because I don't know how to figure out clock granularity for
them. The spec says:
... system software must set [Effective Granularity] to the value
reported in the Local Clock Granularity field by the associated PTM
Time Source.
but I don't know how to identify the associated PTM Time Source. Normally
it's the upstream bridge, but an integrated endpoint has no upstream
bridge.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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It can sometimes be necessary for gadget drivers to process non-standard
control requests, which host devices can send without having sent
USB_REQ_SET_CONFIGURATION.
Therefore, the req_match() usb_function method is enhanced with the new
parameter "config0". When a USB configuration is active, this parameter
is false. When a non-core control request is processed in
composite_setup(), without an active configuration, req_match() of the
USB functions of all available configurations which implement this
function, is called with config0=true. Then the control request gets
processed by the first usb_function instance whose req_match() returns
true.
Signed-off-by: Felix Hädicke <felixhaedicke@web.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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USB spec specifies wMaxPacketSize to be little endian (as other properties),
so when using this variable in the driver we should convert to the current
CPU endianness if necessary.
This patch also introduces usb_ep_align() which does always returns the
aligned buffer size for an endpoint. This is useful to be used by USB requests
allocator functions.
Signed-off-by: Felipe F. Tonello <eu@felipetonello.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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git://anongit.freedesktop.org/tegra/linux into drm-fixes
drm/tegra: Fixes for v4.8-rc4
This contains one fix for DSI runtime power management support that was
introduced in v4.8-rc1. This is slightly more elaborate than I would've
wished, but there are a few corner cases that needed fixing.
* tag 'drm/tegra/for-4.8-rc4' of git://anongit.freedesktop.org/tegra/linux:
drm/tegra: dsi: Enhance runtime power management
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into drm-next
drm-intel-next-2016-08-22:
- bugfixes and cleanups for rcu-protected requests (Chris)
- atomic modeset fixes for gpu reset on pre-g4x (Maarten&Ville)
- guc submission improvements (Dave Gordon)
- panel power sequence cleanup (Imre)
- better use of stolen and unmappable ggtt (Chris), plus prep work to make that
happen
- rework of framebuffer offsets, prep for multi-plane framebuffers (Ville)
- fully partial ggtt vmaps, including fenced ones (Chris)
- move lots more of the gem tracking from the object to the vma (Chris)
- tune the command parser (Chris)
- allow fbc without fences on recent platforms (Chris)
- fbc frontbuffer tracking fixes (Chris)
- fast prefaulting using io-mappping.h pgprot caching (Chris)
* 'drm-intel-next' of git://anongit.freedesktop.org/drm-intel: (141 commits)
io-mapping: Fixup for different names of writecombine
io-mapping.h: s/PAGE_KERNEL_IO/PAGE_KERNEL/
drm/i915: Update DRIVER_DATE to 20160822
drm/i915: Use remap_io_mapping() to prefault all PTE in a single pass
drm/i915: Embed the io-mapping struct inside drm_i915_private
io-mapping: Always create a struct to hold metadata about the io-mapping
drm/i915/fbc: Allow on unfenced surfaces, for recent gen
drm/i915/fbc: Don't set an illegal fence if unfenced
drm/i915: Flush delayed fence releases after reset
drm/i915: Reattach comment, complete type specification
drm/i915/cmdparser: Accelerate copies from WC memory
drm/i915/cmdparser: Use binary search for faster register lookup
drm/i915/cmdparser: Check for SKIP descriptors first
drm/i915/cmdparser: Compare against the previous command descriptor
drm/i915/cmdparser: Improve hash function
drm/i915/cmdparser: Only cache the dst vmap
drm/i915/cmdparser: Use cached vmappings
drm/i915/cmdparser: Add the TIMESTAMP register for the other engines
drm/i915/cmdparser: Make initialisation failure non-fatal
drm/i915: Stop discarding GTT cache-domain on unbind vma
...
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Export client addr/nonce, so userspace can check if a image is being
blacklisted.
Signed-off-by: Mike Christie <mchristi@redhat.com>
[idryomov@gmail.com: ceph_client_addr(), endianess fix]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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It's gid / global_id in other places.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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Reuse ceph_mon_generic_request infrastructure for sending monitor
commands. In particular, add support for 'blacklist add' to prevent
other, non-responsive clients from making further updates.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
[idryomov@gmail.com: refactor, misc fixes throughout]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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Add an interface for the Ceph OSD lock.lock_info method and associated
data structures.
Based heavily on code by Mike Christie <michaelc@cs.wisc.edu>.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
[idryomov@gmail.com: refactor, misc fixes throughout]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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This patch adds support for rados lock, unlock and break lock.
Based heavily on code by Mike Christie <michaelc@cs.wisc.edu>.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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Add a convenience function to osd_client to send Ceph OSD
'class' ops. The interface assumes that the request and
reply data each consist of single pages.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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Add support for this Ceph OSD op, needed to support the RBD exclusive
lock feature.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
[idryomov@gmail.com: refactor, misc fixes throughout]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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Clear up EntityName vs entity_name_t confusion.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma
Saeed Mahameed says:
====================
Mellanox mlx5 core driver updates 2016-08-24
This series contains some low level and API updates for mlx5 core
driver interface and mlx5_ifc.h, plus mlx5 LAG core driver support,
to be shared as base code for net-next and rdma mlx5 4.9 submissions.
From Alex and Artemy, Update mlx5_ifc for modify RQ and XRC bits.
From Noa, Expose mlx5 link modes so they can be used in RDMA tree for rdma tools.
From Aviv, LAG support needed for RDMA.
- Add needed hardware structures, layouts and interface
- mlx5 core driver LAG implementation
- Introduce mlx5 core driver LAG API for mlx5_ib
From Maor, add two low level patches for mlx5 hardware sniffer QP
infrastructure bits and capabilities, plus added the namespace for sniffer
steering tables. Needed for RDMA subtree.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The MIPI DSI output on Tegra SoCs requires some external logic to
calibrate the MIPI pads before a video signal can be transmitted. This
MIPI calibration logic requires to be powered on while the MIPI pads are
being used, which is currently done as part of the DSI driver's probe
implementation.
This is suboptimal because it will leave the MIPI calibration logic
powered up even if the DSI output is never used.
On Tegra114 and earlier this behaviour also causes the driver to hang
while trying to power up the MIPI calibration logic because the power
partition that contains the MIPI calibration logic will be powered on
by the display controller at output pipeline configuration time. Thus
the power up sequence for the MIPI calibration logic happens before
it's power partition is guaranteed to be enabled.
Fix this by splitting up the API into a request/free pair of functions
that manage the runtime dependency between the DSI and the calibration
modules (no registers are accessed) and a set of enable, calibrate and
disable functions that program the MIPI calibration logic at points in
time where the power partition is really enabled.
While at it, make sure that the runtime power management also works in
ganged mode, which is currently also broken.
Reported-by: Jonathan Hunter <jonathanh@nvidia.com>
Tested-by: Jonathan Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Currently, very few RNG drivers support single byte reads using the
->read() interface. Of the 14 drivers in drivers/char/hw_random that
support this interface only three of these actually support max == 1.
The other behaviours vary between return 0, return 2, return 4 and return
-EIO).
This is not a problem in practice because the core hw_random code never
performs a read shorter than 16 bytes. The documentation for this function
already contrains the alignment of the buffer pointer, so let's also
guarantee that the buffer is at least as large as its alignment.
This constraint is intended to be the weakest guarantee neccessary to
allow driver writers to safely simplify their code.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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When function graph tracing is enabled for a function, ftrace modifies
the stack by replacing the original return address with the address of a
hook function (return_to_handler).
Stack unwinders need a way to get the original return address. Add an
arch-independent helper function for that named ftrace_graph_ret_addr().
This adds two variations of the function: one depends on
HAVE_FUNCTION_GRAPH_RET_ADDR_PTR, and the other relies on an index state
variable.
The former is recommended because, in some cases, the latter can cause
problems when the unwinder skips stack frames. It can get out of sync
with the ret_stack index and wrong addresses can be reported for the
stack trace.
Once all arches have been ported to use
HAVE_FUNCTION_GRAPH_RET_ADDR_PTR, we can get rid of the distinction.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/36bd90f762fc5e5af3929e3797a68a64906421cf.1471607358.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Storing this value will help prevent unwinders from getting out of sync
with the function graph tracer ret_stack. Now instead of needing a
stateful iterator, they can compare the return address pointer to find
the right ret_stack entry.
Note that an array of 50 ftrace_ret_stack structs is allocated for every
task. So when an arch implements this, it will add either 200 or 400
bytes of memory usage per task (depending on whether it's a 32-bit or
64-bit platform).
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/a95cfcc39e8f26b89a430c56926af0bb217bc0a1.1471607358.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This saves some memory when HAVE_FUNCTION_GRAPH_FP_TEST isn't defined.
On x86_64 with newer versions of gcc which have -mfentry, it saves 400
bytes per task.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/5c7747d9ea7b5cb47ef0a8ce8a6cea6bf7aa94bf.1471607358.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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If CONFIG_VMAP_STACK=y is selected, kernel stacks are allocated with
__vmalloc_node_range().
Grsecurity has had a similar feature (called GRKERNSEC_KSTACKOVERFLOW=y)
for a long time.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/14c07d4fd173a5b117f51e8b939f9f4323e39899.1470907718.git.luto@kernel.org
[ Minor edits. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Somehow architectures can't agree on this. And for good measure make
sure we have a fallback which should work everywhere (fingers
crossed).
v2: Make it compile properly, needs a defined() for the #elif.
Fixes: ac96b5566926 ("io-mapping.h: s/PAGE_KERNEL_IO/PAGE_KERNEL/")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: linux-mm@kvack.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160823202233.4681-1-daniel.vetter@ffwll.ch
(cherry picked from commit 80c33624e4723c4e22d9917cd676067ebf652dc2)
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PAGE_KERNEL_IO is an x86-ism. Though it is used to define the pgprot_t
used for the iomapped region, it itself is just PAGE_KERNEL. On all
other arches, PAGE_KERNEL_IO is undefined so in a general header we must
refrain from using it.
v2: include pgtable for pgprot_combine()
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: cafaf14a5d8f ("io-mapping: Always create a struct to hold metadata about the io-mapping")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: linux-mm@kvack.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160823155024.22379-1-chris@chris-wilson.co.uk
(cherry picked from commit ac96b5566926af83463ddcf4655856033c092f26)
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git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into work-testing
Jonathan writes:
First round of new features, device support and cleanups for IIO in the 4.9 cycle.
Device support
* ak8974
- New driver and bindings for this 2009 vintage magnetometer (it was very
popular back then!)
* atlas-ph-sensor
- ORP sensor support(I had to look up what one of these was)
* cio-dac
- New driver for Measurement Computing DAC boards
* dmard06
- New driver for Domintech DMARDO6 accelerometer. Also vendor prefix.
* dmard09
- New driver for Domintech DMARD09 accelerometer.
* maxim-thermocouple
- max6675 and max31855 new driver
* mt6577 auxdac
- new driver for this Mediatek chip mt2701, mt6577 and mt8173 have this
hardware.
* ti-adc161s626
- new driver for this TI single channel differential ADC.
* vcnl4000
- support vcnl4010 and vcnl4020 which are compatible for all features
currently supported by this driver.
New features
* Core
- Allow retrieving of underlying iio_dev from a callback buffer handle.
This is needed to allow client drivers to perform operations such as
configuring the trigger used.
* hid-sensors
- asynchronous resume support to avoid really long resume times.
* kxcjk-1013
- add the mysterious KIOX000A ACPI id seen in the wild.
* Tools
- lsiio now enumerates processed as well as raw channels.
Cleanup
* ad7298
- use iio_device_claim_direct_mode and friends to simplify locking around
mode switching and drop some boilerplate.
* ad7793
- use iio_device_claim_direct_mode and friends to simplify locking around
mode switching and drop some boilerplate.
* ade7854
- checkpatch fixups (alignment of parameters)
* atlas-ph-sensor
- use iio_device_claim_direct_mode and friends to simplify locking around
mode switching and drop some boilerplate.
- Switch to REGCACHE_NONE as there are no useful register to cache.
* bma180
- use iio_device_claim_direct_mode and friends to simplify locking around
mode switching and drop some boilerplate.
* hdc100x
- Add mention of the HDC1000 and HDC1008 to the Kconfig help text.
* isl29018
- Add driver specific prefixes to defines and function names.
- Remove excessive logging.
- Drop newlines which add nothing to readability.
- General tidying up of comments.
- Drop I2C_CLASS_HWMON as irrelevant to driver.
* isl29028
- Add driver specific prefixes to defines, enums and function names.
- Drop comma's from available attribute output as not ABI compliant.
- Drop I2C_CLASS_HWMON as irrelevant to driver.
* kxsd9
- devicetree bindings.
* mag3110
- This one wasn't locking to protect against mode switches during
raw_reads. Use the iio_claim_direct_mode function to fix this buglet.
* maxim-theromcouple
- Fix missing selects for triggered buffer support in Kconfig.
* nau7802
- Use complete instead of complete_all as only one completion at a time.
* sx9500
- Use complete instead of complete_all as only one completion at a time.
* us5182d
- Add a missing error code asignment instead of checking the result of
an already checked statement.
* vcnl4000
- Use BIT macro where appropriate.
- Refactor return codes in read_raw callback.
- Add some missing locking for concurrent accesses to the device.
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git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into work-linus
Jonathan writes:
First round of IIO fixes for the 4.8 cycle.
This is somewhat of a bumper set due to my unavailabilty earlier in the
month. The only slightly unusual ones are the dts updates for the
rockchip adc reset. The fix in the driver only makes sense with these
and the rockchip maintainer is happy with them going through IIO to
reach mainline.
Core stuff
* Fix an issue with a blocking op when !TASK_RUNNING. This been there
a while and snuck in with seemingly minor additions to some core
code paths.
* Tools
- generic_buffer failed to initialize the channel array pointer thus
in the case of no channels blows up trying to free a random memory
address.
* sw-trigger:
- Fix config group initialization when configfs is built as a module.
Drivers
* ad5933
- Fix an incorrect overwrite of an error value.
* ad799x
- A missed assignment of the update_scan_mode callback means buffered mode
doesn't work on the ad7991, ad7995 or ad7999.
* ads1015
- wrong pointer returned from i2c_get_clientdata (missmatch of assumptions)
* am2315
- Timestamps are reported, but never actually acquired from anywhere
(so always 0)
- missing buffer selects in Kconfig
* am335x adc
- Protect fifo1 from concurrent access.
- Increase timeout waiting for ADC to be long enough in all cases.
* as3935
- Timestamps are reported, but never actually acquired from anywhere
(so always 0)
* at91
- Fix reading of channel 3.
* atlas-ph-sensor
- Typo means that the scale of electrical conductivity readings is way off.
* bma220
- Timestamps are reported, but never actually acquired from anywhere
(so always 0)
- Missing buffer selects in Kconfig
* bmp280
- pass the write pointer to PTR_ERR (i.e. the one that was just checked
with IS_ERR).
- suspend /resume crash due to wrong assumption about what dev_get_drvdata
would return.
* hdc100x
- It superficially appeared that smbus_read_byte commands would allow
reading of the outputs in two goes. In reality it doesn't work, but
instead returns the same for the upper and lower bytes (nice catch from
Alison!)
* kxsd9
- Fix raw read return value to ensure it actually reports the value rather
than a blank string.
* max44000
- Missing buffer selects in Kconfig
* rockchip_saradc
- Add use of reset controller to enforce a clean state of the ADC.
Some bootloaders can leave it in an 'intersting' state and effectively
frozen without this. A couple of associated dts updates.
* stk8ba50
- Missing buffer selects in Kconfig
* stx104
- Fix a possible race due to use of devm_iio_device_register when there
was other stuff in the remove function.
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By representing each edge as its own device the channels are no longer
tied to being parented by the same smd device and as such an edge can
live as children of e.g. remoteproc instances.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
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Multi-channel clients split between several drivers need a way to close
individual channels, as these drivers might be removed individually.
With this in place the responsibility of closing additionally opened
channels to the client as well only concerning smd about the primary
channel.
With this approach we will only trigger removal of SMD devices based on
the state of the primary channel, however we get in sync with how rpmsg
works.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
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The prototypes for the compile stubs was not properly marked as static
inline, this patch corrects this.
Fixes: f79a917e69e1 ("Merge tag 'qcom-soc-for-4.7-2' into net-next")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
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Make netvsc on vmbus behave more like PCI.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Several new functions were introduced into hyperv.h but only used in one file.
Move them and let compiler decide on inline.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma
Saeed Mahameed says:
====================
Mellanox mlx5 core driver updates 2016-08-20
This series contains several low level and API updates for mlx5 core
commands interface and mlx5_ifc.h to be shared as base code for net-next and
rdma mlx5 4.9 submissions.
From Saeed, ten patches that refactors old layouts of firmware commands which
were manually generated before we introduced the mlx5_ifc, now all of the firmware
commands inbox/outbox layouts moved to use mlx5_ifc and we remove the old
manually generated structures. Plus to those ten patches, we add two patches
that unifies mlx5 commands execution interface and improve the driver log messages
in that area.
From Hadar and Ilya, added the needed hardware bits and infrastructure for
minimum inline headers setting and encap/decap commands and capabilities,
needed for E-Switch offloads.
This series applies on top latest net-next and rdma/master, and smoothly merges with
the latest "Mellanox 100G mlx5 fixes 2016-08-16" series already applied into net branch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma into mlx5-shared
Mellanox ConnectX-4/Connect-IB shared code (HW part)
* net/mlx5: Introduce alloc_encap and dealloc_encap commands
* net/mlx5: Update mlx5_ifc.h for vxlan encap/decap
* net/mlx5: Enable setting minimum inline header mode for VFs
* net/mlx5: Improve driver log messages
* net/mlx5: Unify and improve command interface
* {net,IB}/mlx5: Modify QP commands via mlx5 ifc
* {net,IB}/mlx5: QP/XRCD commands via mlx5 ifc
* {net,IB}/mlx5: MKey/PSV commands via mlx5 ifc
* {net,IB}/mlx5: CQ commands via mlx5 ifc
* net/mlx5: EQ commands via mlx5 ifc
* net/mlx5: Pages management commands via mlx5 ifc
* net/mlx5: MCG commands via mlx5 ifc
* net/mlx5: PD and UAR commands via mlx5 ifc
* net/mlx5: Access register and MAD IFC commands via mlx5 ifc
* net/mlx5: Init/Teardown hca commands via mlx5 ifc
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Last FW submission reverted various macros into an older form,
where they generate compilation warnings on some architectures.
Bring back the newer macros instead.
Fixes: 05fafbfb3d77 ("qed: utilize FW 8.10.10.0")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Modern VFs can't run on old non-compatible as the fastpath HSI is
slightly changed - but as the HSI is actually very close [basically,
a single bit whose meaning flipped] this can be supported with small
modifications.
The major differences would be in:
- Recognizing that VF is running on top of a legacy PF.
- Returning some slowpath configurations that are no longer needed
on top of modern PFs, but would be required when working over
the legacy ones.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The TOROUT_STRING() macro does not insert a space between the flag and
the message. In contrast, other similar torture-test dmesg messages
consistently supply a single space character. This difference makes the
output hard to read and to mechanically parse. This commit therefore
adds a space character between flag and message in TOROUT_STRING() output.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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The cec-funcs.h header was missing support for these three vendor-specific messages:
CEC_MSG_VENDOR_COMMAND
CEC_MSG_VENDOR_COMMAND_WITH_ID
CEC_MSG_VENDOR_REMOTE_BUTTON_DOWN
Add wrappers for these messages.
I originally postponed adding these wrappers due to the fact that the argument is
just a byte array which cec-ctl couldn't handle at the time, and then I just forgot
to add them once the CEC framework was finalized.
It wasn't until an attempt to transmit a vendor specific command was made that I
realized that these wrappers were missing.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Currently if none of the requested logical addresses can be claimed, the
framework will fall back to the Unregistered logical address.
Add a flag to enable this explicitly. By default it will just go back to
the unconfigured state.
Usually Unregistered is not something you want since the functionality is
very limited. Unless the application has support for this, it will fail
to work correctly. So require that the application explicitly requests
this.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Up to now, RCU has assumed that the CPU-online process makes it from
CPU_UP_PREPARE to set_cpu_online() within one jiffy. Given the recent
rise of virtualized environments, this assumption is very clearly
obsolete. Failing to meet this deadline can result in RCU paying
attention to an incoming CPU for one jiffy, then ignoring it until the
grace period following the one in which that CPU sets itself online.
This situation might prove to be fatally disappointing to any RCU
read-side critical sections that had the misfortune to execute during
the time in which RCU was ignoring the slow-to-come-online CPU.
This commit therefore updates RCU's internal CPU state-tracking
information at notify_cpu_starting() time, thus providing RCU with
an exact transition of the CPU's state from offline to online.
Note that this means that incoming CPUs must not use RCU read-side
critical section (other than those of SRCU) until notify_cpu_starting()
time. Note also that the CPU_STARTING notifiers -are- allowed to use
RCU read-side critical sections. (Of course, CPU-hotplug notifiers are
rapidly becoming obsolete, so you need to act fast!)
If a given architecture or CPU family needs to use RCU read-side
critical sections earlier, the call to rcu_cpu_starting() from
notify_cpu_starting() will need to be architecture-specific, with
architectures that need early use being required to hand-place
the call to rcu_cpu_starting() at some point preceding the call to
notify_cpu_starting().
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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A reply parameter is added to the cec_msg_record_on/off functions in
cec-funcs.h. The standard mandates that Record Status shall be replied
to Record On, and it may be replied to Record Off.
Signed-off-by: Johan Fjeldtvedt <jaffe1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Fix typo where logical AND was used instead of bitwise AND.
Reported-by: David Binderman <linuxdev.baldrick@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some platforms power off sensor hubs during S3 suspend, which will require
longer time to resume. This hurts system resume time, so resume
asynchronously.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Now that open delay and sample delay for each channel is configurable
via DT, the default IDLE_TIMEOUT value is not enough as this is
calculated based on hardcoded macros. This results in driver returning
EBUSY sometimes. Fix this by increasing the timeout
value based on maximum value possible to open delay and sample delays
for each channel.
Fixes: 5dc11e810676e ("iio: adc: ti_am335x_adc: make sample delay, open delay, averaging DT parameters")
Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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