Add common properties appearing in DTSes (assigned-clock-parents,
assigned-clocks) to fix dtbs_check warnings like:

  arch/arm64/boot/dts/exynos/exynos5433-tm2.dt.yaml: system-controller@105c0000:
    'assigned-clock-parents', 'assigned-clocks' do not match any of the regexes: 'pinctrl-[0-9]+'
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200903191311.12293-1-krzk@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

Correct a typo in the compatible - missing trailing 's'.
Reviewed-by: Kamil Konieczny <k.konieczny@samsung.com>
Acked-by: Kamil Konieczny <k.konieczny@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200903180400.2865-1-krzk@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

The samsung,s6e63j0x03 does not have enable GPIO, so do not require it.
This fixes dtbs_check warning:

  arch/arm/boot/dts/exynos3250-rinato.dt.yaml: panel@0: 'enable-gpios' is a required property
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200829172532.29358-1-krzk@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

Add Samsung 11-pin USB-C connector into standard dtschema bindings file.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200829142501.31478-5-krzk@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

Convert the current OMAP hwspinlock binding from text format to YAML
format/DT schema, and delete the legacy text binding file.

The new YAML binding conversion is a slightly updated version compared
to the original. The legacy "ti,hwmods" property is now obsolete and
is dropped altogether, and the K3 example is updated to showcase the
actual dts node usage.
Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20200828041447.5900-1-s-anna@ti.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the SPMI bus documentation to JSON/yaml.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/ee4c4ca9f29a39f6af772b3a526a996176499da3.1598415179.git.mchehab+huawei@kernel.org
[robh: Correct maintainer, unit-address should be hex]
Signed-off-by: Rob Herring <robh@kernel.org>

Meraki was founded in 2006. The start-up quickly rose to prominence
by being based in part on the MIT Roofnet Project.
In December 2012, Cisco Systems, Inc. bought Meraki.
The "Meraki" branding is still around to this day.

Web site of the company: https://meraki.cisco.com/Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Link: https://lore.kernel.org/r/20200822154045.16036-1-chunkeey@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

This converts the DT binding documentation for the ARM SP-804 timer IP
over to json-schema.
Most properties are just carried over, the clocks property requirement
(either one or three clocks) is now formalised and enforced.
As the former binding didn't specify clock-names, and there is no
common name used by the existing DTs, I refrained from adding them in
detail (just allowing the property).
The requirement for the APB clock is enforced by the primecell binding
already.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200828142018.43298-2-andre.przywara@arm.com
[robh: drop primecell.yaml]
Signed-off-by: Rob Herring <robh@kernel.org>

The driver and metag arch were removed in 2018.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200826184851.3431531-3-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

The driver was removed in 2016 in commit fb954c48 ("phy:
stih41x-usb: Remove usb phy driver and dt binding  documentation.") and
somehow the DT binding got dropped despite the subject.

Cc: Peter Griffin <peter.griffin@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/20200826184851.3431531-2-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

The binding was added in 2013 and has had no driver since 2015.

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: alsa-devel@alsa-project.org
Link: https://lore.kernel.org/r/20200826184851.3431531-1-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

As the number of binding schemas has grown, the time to run
dt_binding_check has gotten pretty slow. A large part of this is due to
the slow startup time of Python (a well documented problem). There's not
currently any benefit to running dt-doc-validate one file at a time, so
let's switch it to run a single rule. Doing this means we loose the make
parallelism, but we can use xargs instead. This speeds up the validation
time from several minutes to <10 sec.

Since the validation is a single step with no output, we move running it
as part of the processed-schema-examples.json target. We also need to
reorder the extra-y entries so the validation is run first rather than
after all the examples are extracted.
Signed-off-by: Rob Herring <robh@kernel.org>

Change the format of processed-schema* from yaml to json to speed up
validation. With json output, using xargs and appending the output won't
work since json has explicit list begin and end characters. Instead,
we pass the schema files as a list in a temp file.

The parsing time for the processed schema goes down from ~2sec to 70ms.
Also, 'make dtbs_check' becomes 33% faster.

Some error messages are affected by this change. For example, "True was
expected" becomes "... is not of type 'boolean'". The order of messages
is also changed.
Signed-off-by: Andrei Ziureaev <andrei.ziureaev@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>

dtschema release 2020.8.1 gained several additions to help performance.
dt-doc-validate can now take a list of files and directories, and
dt-mk-schema can store the processed schema in JSON which is much faster
to parse than YAML. Utilizing both of these changes results in a 3-4x
speed improvement in running dt_binding_check.

There's also additional meta-schema checks which binding schemas should
be checked against.
Signed-off-by: Rob Herring <robh@kernel.org>

None of the help texts use capitalization, except the one for the -T
option.  Drop the capitalization for consistency.
Split the single long line that doesn't fit in 80 characters.
Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200819124709.20401-1-geert+renesas@glider.be

Convert the NXP lpuart binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1597721685-9280-5-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the MXS auart binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1597721685-9280-4-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX uart binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1597721685-9280-3-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Update the i.MX23 clock example to align with MXS AUART binding doc to
avoid below build error:

Documentation/devicetree/bindings/clock/imx23-clock.example.dt.yaml:
   serial@8006c000: clocks: [[4294967295, 32]] is too short
Documentation/devicetree/bindings/clock/imx23-clock.example.dt.yaml:
   serial@8006c000: 'dmas' is a required property
Documentation/devicetree/bindings/clock/imx23-clock.example.dt.yaml:
    serial@8006c000: 'dma-names' is a required property
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1597721685-9280-2-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Update the i.MX28 clock example to align with MXS AUART binding doc to
avoid below build error:

Documentation/devicetree/bindings/clock/imx28-clock.example.dt.yaml:
  serial@8006a000: clocks: [[4294967295, 45]] is too short
Documentation/devicetree/bindings/clock/imx28-clock.example.dt.yaml:
  serial@8006a000: compatible: Additional items are not allowed
  ('fsl,imx23-auart' was unexpected)
Documentation/devicetree/bindings/clock/imx28-clock.example.dt.yaml:
  serial@8006a000: compatible: ['fsl,imx28-auart', 'fsl,imx23-auart']
  is too long
Documentation/devicetree/bindings/clock/imx28-clock.example.dt.yaml:
  serial@8006a000: 'dmas' is a required property
Documentation/devicetree/bindings/clock/imx28-clock.example.dt.yaml:
  serial@8006a000: 'dma-names' is a required property
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1597721685-9280-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Iterate over child devices in reverse when unpopulating a platform
device to make this step symmetrical with the population step. This
fixes an issue in the Tegra DRM driver where upon module unload the
DPAUX controller tries to unregister an I2C controller but will end
up waiting indefinitely because one of the SOR devices is keeping a
reference to it. Since the SOR devices are instantiated after the
DPAUX devices, they would only be removed (and hence release their
reference to the I2C controller) after the DPAUX devices have been
removed.

While destroying the child devices in reverse order helps in this
situation, it isn't fully safe to do so either. An even better way
would be for the child devices to be reordered to match the probe
order, which would work irrespective of the instantiation order.

However, reordering by probe order would be fairly complicated and
doesn't fix any known issues, so we'll go with the simpler fix for
now.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200806153650.3883530-1-thierry.reding@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the vf610 gpio binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1597218741-24899-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX sata binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596611746-29155-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the snvs lpgpr binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596610172-30323-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX DDR perf binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596609387-23542-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX rng binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596608884-13205-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX7ULP SIM binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596595841-27563-2-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX7ULP PM binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596595841-27563-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX sahara binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596595410-26921-3-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX SCC binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596595410-26921-2-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the MXS DCP binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596595410-26921-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the i.MX one wire binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1596595091-26760-1-git-send-email-Anson.Huang@nxp.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the binding document for at25 EEPROMs from txt to yaml.
Signed-off-by: Christian Eggers <ceggers@arri.de>
Link: https://lore.kernel.org/r/20200813085959.15946-1-ceggers@arri.deSigned-off-by: Rob Herring <robh@kernel.org>

Pull io_uring fixes from Jens Axboe:
 "A few differerent things in here.

  Seems like syzbot got some more io_uring bits wired up, and we got a
  handful of reports and the associated fixes are in here.

  General fixes too, and a lot of them marked for stable.

  Lastly, a bit of fallout from the async buffered reads, where we now
  more easily trigger short reads. Some applications don't really like
  that, so the io_read() code now handles short reads internally, and
  got a cleanup along the way so that it's now easier to read (and
  documented). We're now passing tests that failed before"

* tag 'io_uring-5.9-2020-08-15' of git://git.kernel.dk/linux-block:
  io_uring: short circuit -EAGAIN for blocking read attempt
  io_uring: sanitize double poll handling
  io_uring: internally retry short reads
  io_uring: retain iov_iter state over io_read/io_write calls
  task_work: only grab task signal lock when needed
  io_uring: enable lookup of links holding inflight files
  io_uring: fail poll arm on queue proc failure
  io_uring: hold 'ctx' reference around task_work queue + execute
  fs: RWF_NOWAIT should imply IOCB_NOIO
  io_uring: defer file table grabbing request cleanup for locked requests
  io_uring: add missing REQ_F_COMP_LOCKED for nested requests
  io_uring: fix recursive completion locking on oveflow flush
  io_uring: use TWA_SIGNAL for task_work uncondtionally
  io_uring: account locked memory before potential error case
  io_uring: set ctx sq/cq entry count earlier
  io_uring: Fix NULL pointer dereference in loop_rw_iter()
  io_uring: add comments on how the async buffered read retry works
  io_uring: io_async_buf_func() need not test page bit

Commit 1355c31e ("asm-generic: pgalloc: provide generic pmd_alloc_one()
and pmd_free_one()") converted parisc to use generic version of
pmd_alloc_one() but it missed the fact that parisc uses order-1 pages for
PMD.

Restore the original version of pmd_alloc_one() for parisc, just use
GFP_PGTABLE_KERNEL that implies __GFP_ZERO instead of GFP_KERNEL and
memset.

Fixes: 1355c31e ("asm-generic: pgalloc: provide generic pmd_alloc_one() and pmd_free_one()")
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Meelis Roos <mroos@linux.ee>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://lkml.kernel.org/r/9f2b5ebd-e4a4-0fa1-6cd3-4b9f6892d1ad@linux.eeSigned-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull block fixes from Jens Axboe:
 "A few fixes on the block side of things:

   - Discard granularity fix (Coly)

   - rnbd cleanups (Guoqing)

   - md error handling fix (Dan)

   - md sysfs fix (Junxiao)

   - Fix flush request accounting, which caused an IO slowdown for some
     configurations (Ming)

   - Properly propagate loop flag for partition scanning (Lennart)"

* tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block:
  block: fix double account of flush request's driver tag
  loop: unset GENHD_FL_NO_PART_SCAN on LOOP_CONFIGURE
  rnbd: no need to set bi_end_io in rnbd_bio_map_kern
  rnbd: remove rnbd_dev_submit_io
  md-cluster: Fix potential error pointer dereference in resize_bitmaps()
  block: check queue's limits.discard_granularity in __blkdev_issue_discard()
  md: get sysfs entry after redundancy attr group create

Pull RISC-V fix from Palmer Dabbelt:
 "I collected a single fix during the merge window: we managed to break
  the early trap setup on !MMU, this fixes it"

* tag 'riscv-for-linus-5.9-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Setup exception vector for nommu platform

Pull arch/sh updates from Rich Felker:
 "Cleanup, SECCOMP_FILTER support, message printing fixes, and other
  changes to arch/sh"

* tag 'sh-for-5.9' of git://git.libc.org/linux-sh: (34 commits)
  sh: landisk: Add missing initialization of sh_io_port_base
  sh: bring syscall_set_return_value in line with other architectures
  sh: Add SECCOMP_FILTER
  sh: Rearrange blocks in entry-common.S
  sh: switch to copy_thread_tls()
  sh: use the generic dma coherent remap allocator
  sh: don't allow non-coherent DMA for NOMMU
  dma-mapping: consolidate the NO_DMA definition in kernel/dma/Kconfig
  sh: unexport register_trapped_io and match_trapped_io_handler
  sh: don't include <asm/io_trapped.h> in <asm/io.h>
  sh: move the ioremap implementation out of line
  sh: move ioremap_fixed details out of <asm/io.h>
  sh: remove __KERNEL__ ifdefs from non-UAPI headers
  sh: sort the selects for SUPERH alphabetically
  sh: remove -Werror from Makefiles
  sh: Replace HTTP links with HTTPS ones
  arch/sh/configs: remove obsolete CONFIG_SOC_CAMERA*
  sh: stacktrace: Remove stacktrace_ops.stack()
  sh: machvec: Modernize printing of kernel messages
  sh: pci: Modernize printing of kernel messages
  ...

One case was missed in the short IO retry handling, and that's hitting
-EAGAIN on a blocking attempt read (eg from io-wq context). This is a
problem on sockets that are marked as non-blocking when created, they
don't carry any REQ_F_NOWAIT information to help us terminate them
instead of perpetually retrying.

Fixes: 227c0c96 ("io_uring: internally retry short reads")
Signed-off-by: Jens Axboe <axboe@kernel.dk>