Convert the NVIDIA Tegra186 (and later) BPMP I2C bindings from the
free-form text format to json-schema.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20211208143306.534700-1-thierry.reding@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Add compatible strings for the NVIDIA Denver and Carmel PMUs.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20211207150746.444478-1-thierry.reding@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Add bindings for the 2020 and 2021 cohorts of Cortex-A and Neoverse
CPUs, now featuring their Cortex-X cousins as well.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/a36014d06d308c73d3fa1ed55e8967fb8adadf0d.1638900542.git.robin.murphy@arm.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the Broadcom SYSTEMPORT Ethernet controller Device Tree binding
to YAML.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211208202801.3706929-3-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the Broadcom AMAC Device Tree binding to YAML to help with
schema and dtbs checking.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211208202801.3706929-2-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Conver the Broadcom iProc MDIO mux Device Tree binding to YAML.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206180049.2086907-9-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the Broadcom Northstar 2 PCIe PHY Device Tree binding to YAML
and rename it accordingly in the process since it had nothing to do with
a MDIO mux on the PCI(e) bus. This is a pre-requisite to updating
another binding file to YAML.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206180049.2086907-8-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Convert the GENET binding to YAML, leveraging brcm,unimac-mdio.yaml and
the standard ethernet-controller.yaml files.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206180049.2086907-5-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

MoCA (Multimedia over Coaxial) is used by the internal GENET/MOCA cores
and will be needed in order to convert GENET to YAML in subsequent
changes.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206180049.2086907-4-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

Add Doug and myself as maintainers since this binding is used by the
GENET Ethernet controller for its internal MDIO controller.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206180049.2086907-3-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

The UniMAC MDIO controller integrated into GENET does not provide a
reg-names property since it is optional, reflect that in the binding.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206180049.2086907-2-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

The compatible property is required, make sure the binding documents it
as such.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211202223609.1171452-1-f.fainelli@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

The old "ak" vendor prefix that was never officially accepted was still
being used in some examples. Convert to the correct vendor prefix (i.e.
"asahi-kasei").
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20211206144802.217073-1-thierry.reding@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

There are valid cases when two nodes can have the same address. For
example, in Exynos SoCs there is USI IP-core, which might be configured
to provide UART, SPI or I2C block, all of which having the same base
register address. But only one can be enabled at a time. That looks like
this:

    usi@138200c0 {
        serial@13820000 {
            status = "okay";
        };

        i2c@13820000 {
            status = "disabled";
        };
    };

When running "make dt_binding_check", it reports next warning:

    Warning (unique_unit_address):
    /example-0/usi@138200c0/serial@13820000:
    duplicate unit-address (also used in node
    /example-0/usi@138200c0/i2c@13820000)

Disable "unique_unit_address" in DTC_FLAGS to suppress warnings like
that, but enable "unique_unit_address_if_enabled" warning, so that dtc
still reports a warning when two enabled nodes are having the same
address.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reported-by: Rob Herring <robh@kernel.org>
Suggested-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211203183517.11390-1-semen.protsenko@linaro.orgSigned-off-by: Rob Herring <robh@kernel.org>

Convert the Cadence MACB/GEM Ethernet controller Device Tree binding
documentation to json-schema.

Re-add "cdns,gem" (removed in commit a217d871 ("dt-bindings:
Remove PicoXcell bindings")) as there are active users on non-PicoXcell
platforms.
Add missing "ether_clk" clock.
Add missing properties.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/104dcbfd22f95fc77de9fe15e8abd83869603ea5.1637927673.git.geert@linux-m68k.orgSigned-off-by: Rob Herring <robh@kernel.org>

To improve human readability and enable automatic validation, the tuples
in "interrupts" properties should be grouped using angle brackets.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20211125150233.161576-1-geert@linux-m68k.orgSigned-off-by: Rob Herring <robh@kernel.org>

Both are already used by HW and drivers inside Linux.

Fix warnings as:
arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dt.yaml: ethernet@0,2: fixed-link:speed:0:0: 2500 is not one of [10, 100, 1000]
        From schema: Documentation/devicetree/bindings/net/ethernet-controller.yaml
Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20211124202046.81136-1-david@ixit.czSigned-off-by: Rob Herring <robh@kernel.org>

Allow fully disabling CPU nodes using status = "fail".

This allows a bootloader to change the number of available CPUs (for
example when a common DTS is used for SoC variants with different numbers
of cores) without deleting the nodes altogether, which could require
additional fixups to avoid dangling phandle references.

Unknown status values (everything that is not "okay"/"ok", "disabled" or
"fail"/"fail-...") will continue to be interpreted like "disabled",
meaning that the CPU can be enabled during boot.

References:
- https://www.spinics.net/lists/devicetree-spec/msg01007.html
- https://github.com/devicetree-org/dt-schema/pull/61

Link: https://lore.kernel.org/all/CAL_Jsq+1LsTBdVaODVfmB0eme2jMpNL4VgKk-OM7rQWyyF0Jbw@mail.gmail.com/Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Tested-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Link: https://lore.kernel.org/r/20211122114536.2981-1-matthias.schiffer@ew.tq-group.comSigned-off-by: Rob Herring <robh@kernel.org>

Add Sensirion SHT4x, a precision temperature and humidity sensor, to
trivial-devices.yaml.
Signed-off-by: David Mosberger-Tang <davidm@egauge.net>
Link: https://lore.kernel.org/r/20211121161320.2312393-1-davidm@egauge.netSigned-off-by: Rob Herring <robh@kernel.org>

Some PL011 implementations provide a reset line to the silicon
IP block, add a device tree property for this.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211120011418.2630449-1-linus.walleij@linaro.orgSigned-off-by: Rob Herring <robh@kernel.org>

Few Texas Instruments DC-DC converters on PMBus like TPS544B20 do not
have bindings and are used only as hardware monitoring sensor.  These
devices are actually not trivial and can receive basic configuration
(e.g. power up mode, CNTL pin polarity, expected input voltage), however
devicetree support for configuration was never added.

Therefore in current state the devices are used only in read-only mode
and have trivial bindings, so document them to have basic dtschema
tests.

Cc: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211116110207.68494-1-krzysztof.kozlowski@canonical.comSigned-off-by: Rob Herring <robh@kernel.org>

This helps validating DTS files.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20211114225416.3174-1-zajec5@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

The ARM Cortex-A78 CPU can be found in a number of recent SoCs such as
the NVIDIA Tegra234 (Orin).
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Robin Murphy <robin.muephy@arm.com>
Link: https://lore.kernel.org/r/20211112131904.3683428-1-thierry.reding@gmail.comSigned-off-by: Rob Herring <robh@kernel.org>

When converting the thermal-zones bindings to yaml the definition of the
contribution property changed. The intention is the same, an integer
value expressing a ratio of a sum on how much cooling is provided by the
device to the zone. But after the conversion the integer value is
limited to the range 0 to 100 and expressed as a percentage.

This is problematic for two reasons.

- This do not match how the binding is used. Out of the 18 files that
  make use of the property only two (ste-dbx5x0.dtsi and
  ste-hrefv60plus.dtsi) sets it at a value that satisfy the binding,
  100. The remaining 16 files set the value higher and fail to validate.

- Expressing the value as a percentage instead of a ratio of the sum is
  confusing as there is nothing to enforce the sum in the zone is not
  greater then 100.

This patch restore the pre yaml conversion description and removes the
value limitation allowing the usage of the bindings to validate.

Fixes: 1202a442 ("dt-bindings: thermal: Add yaml bindings for thermal zones")
Reported-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20211109103045.1403686-1-niklas.soderlund+renesas@ragnatech.seSigned-off-by: Rob Herring <robh@kernel.org>

Sync all formats from simplefb.h into documentation.
Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20211108183322.68192-1-david@ixit.czSigned-off-by: Rob Herring <robh@kernel.org>

In the struct supplier_bindings the member 'node_not_dev' is described as
"The consumer node containing the property is never a device.", but that is
inconsistent with the behaviour of the code in of_link_property(), as it
calls of_get_compat_node() that starts parsing for a compatible property
from the node it gets passed to it. The proper behaviour is to start at the
node's parent, so let's do that.

While at it, let's take the opportunity to update the description of the
'node_not_dev' flag, as to clarify its purpose.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210902090221.820254-1-ulf.hansson@linaro.org

Add vendor prefix for T-Head Semiconductor [1] [2]

[1] https://github.com/T-head-Semi
[2] https://www.t-head.cn/Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree <devicetree@vger.kernel.org>
Link: https://lore.kernel.org/r/20211103020921.3870764-1-guoren@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

Add Kconfig support for -Wimplicit-fallthrough for both GCC and Clang.

The compiler option is under configuration CC_IMPLICIT_FALLTHROUGH,
which is enabled by default.

Special thanks to Nathan Chancellor who fixed the Clang bug[1][2]. This
bugfix only appears in Clang 14.0.0, so older versions still contain
the bug and -Wimplicit-fallthrough won't be enabled for them, for now.

This concludes a long journey and now we are finally getting rid
of the unintentional fallthrough bug-class in the kernel, entirely. :)

Link: https://github.com/llvm/llvm-project/commit/9ed4a94d6451046a51ef393cd62f00710820a7e8 [1]
Link: https://bugs.llvm.org/show_bug.cgi?id=51094 [2]
Link: https://github.com/KSPP/linux/issues/115
Link: https://github.com/ClangBuiltLinux/linux/issues/236Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Co-developed-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull xfs cleanups from Darrick Wong:
 "The most 'exciting' aspect of this branch is that the xfsprogs
  maintainer and I have worked through the last of the code
  discrepancies between kernel and userspace libxfs such that there are
  no code differences between the two except for #includes.

  IOWs, diff suffices to demonstrate that the userspace tools behave the
  same as the kernel, and kernel-only bits are clearly marked in the
  /kernel/ source code instead of just the userspace source.

  Summary:

   - Clean up open-coded swap() calls.

   - A little bit of #ifdef golf to complete the reunification of the
     kernel and userspace libxfs source code"

* tag 'xfs-5.16-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: sync xfs_btree_split macros with userspace libxfs
  xfs: #ifdef out perag code for userspace
  xfs: use swap() to make dabtree code cleaner

Pull more parisc fixes from Helge Deller:
 "Fix a build error in stracktrace.c, fix resolving of addresses to
  function names in backtraces, fix single-stepping in assembly code and
  flush userspace pte's when using set_pte_at()"

* tag 'for-5.16/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc/entry: fix trace test in syscall exit path
  parisc: Flush kernel data mapping in set_pte_at() when installing pte for user page
  parisc: Fix implicit declaration of function '__kernel_text_address'
  parisc: Fix backtrace to always include init funtion names

Pull arch/sh updates from Rich Felker.

* tag 'sh-for-5.16' of git://git.libc.org/linux-sh:
  sh: pgtable-3level: Fix cast to pointer from integer of different size
  sh: fix READ/WRITE redefinition warnings
  sh: define __BIG_ENDIAN for math-emu
  sh: math-emu: drop unused functions
  sh: fix kconfig unmet dependency warning for FRAME_POINTER
  sh: Cleanup about SPARSE_IRQ
  sh: kdump: add some attribute to function
  maple: fix wrong return value of maple_bus_init().
  sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/
  sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y
  sh: boards: Fix the cacography in irq.c
  sh: check return code of request_irq
  sh: fix trivial misannotations

Pull ARM fixes from Russell King:

 - Fix early_iounmap

 - Drop cc-option fallbacks for architecture selection

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 9156/1: drop cc-option fallbacks for architecture selection
  ARM: 9155/1: fix early early_iounmap()

Pull devicetree fixes from Rob Herring:

 - Two fixes due to DT node name changes on Arm, Ltd. boards

 - Treewide rename of Ingenic CGU headers

 - Update ST email addresses

 - Remove Netlogic DT bindings

 - Dropping few more cases of redundant 'maxItems' in schemas

 - Convert toshiba,tc358767 bridge binding to schema

* tag 'devicetree-fixes-for-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: watchdog: sunxi: fix error in schema
  bindings: media: venus: Drop redundant maxItems for power-domain-names
  dt-bindings: Remove Netlogic bindings
  clk: versatile: clk-icst: Ensure clock names are unique
  of: Support using 'mask' in making device bus id
  dt-bindings: treewide: Update @st.com email address to @foss.st.com
  dt-bindings: media: Update maintainers for st,stm32-hwspinlock.yaml
  dt-bindings: media: Update maintainers for st,stm32-cec.yaml
  dt-bindings: mfd: timers: Update maintainers for st,stm32-timers
  dt-bindings: timer: Update maintainers for st,stm32-timer
  dt-bindings: i2c: imx: hardware do not restrict clock-frequency to only 100 and 400 kHz
  dt-bindings: display: bridge: Convert toshiba,tc358767.txt to yaml
  dt-bindings: Rename Ingenic CGU headers to ingenic,*.h

Pull timer fix from Thomas Gleixner:
 "A single fix for POSIX CPU timers to address a problem where POSIX CPU
  timer delivery stops working for a new child task because
  copy_process() copies state information which is only valid for the
  parent task"

* tag 'timers-urgent-2021-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()

Pull irq fixes from Thomas Gleixner:
 "A set of fixes for the interrupt subsystem

  Core code:

   - A regression fix for the Open Firmware interrupt mapping code where
     a interrupt controller property in a node caused a map property in
     the same node to be ignored.

  Interrupt chip drivers:

   - Workaround a limitation in SiFive PLIC interrupt chip which
     silently ignores an EOI when the interrupt line is masked.

   - Provide the missing mask/unmask implementation for the CSKY MP
     interrupt controller.

  PCI/MSI:

   - Prevent a use after free when PCI/MSI interrupts are released by
     destroying the sysfs entries before freeing the memory which is
     accessed in the sysfs show() function.

   - Implement a mask quirk for the Nvidia ION AHCI chip which does not
     advertise masking capability despite implementing it. Even worse
     the chip comes out of reset with all MSI entries masked, which due
     to the missing masking capability never get unmasked.

   - Move the check which prevents accessing the MSI[X] masking for XEN
     back into the low level accessors. The recent consolidation missed
     that these accessors can be invoked from places which do not have
     that check which broke XEN. Move them back to he original place
     instead of sprinkling tons of these checks all over the code"

* tag 'irq-urgent-2021-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  of/irq: Don't ignore interrupt-controller when interrupt-map failed
  irqchip/sifive-plic: Fixup EOI failed when masked
  irqchip/csky-mpintc: Fixup mask/unmask implementation
  PCI/MSI: Destroy sysfs before freeing entries
  PCI: Add MSI masking quirk for Nvidia ION AHCI
  PCI/MSI: Deal with devices lying about their MSI mask capability
  PCI/MSI: Move non-mask check back into low level accessors

Pull x86 static call update from Thomas Gleixner:
 "A single fix for static calls to make the trampoline patching more
  robust by placing explicit signature bytes after the call trampoline
  to prevent patching random other jumps like the CFI jump table
  entries"

* tag 'locking-urgent-2021-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  static_call,x86: Robustify trampoline patching

Pull scheduler fixes from Borislav Petkov:

 - Avoid touching ~100 config files in order to be able to select the
   preemption model

 - clear cluster CPU masks too, on the CPU unplug path

 - prevent use-after-free in cfs

 - Prevent a race condition when updating CPU cache domains

 - Factor out common shared part of smp_prepare_cpus() into a common
   helper which can be called by both baremetal and Xen, in order to fix
   a booting of Xen PV guests

* tag 'sched_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  preempt: Restore preemption model selection configs
  arch_topology: Fix missing clear cluster_cpumask in remove_cpu_topology()
  sched/fair: Prevent dead task groups from regaining cfs_rq's
  sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
  x86/smp: Factor out parts of native_smp_prepare_cpus()

Pull perf fixes from Borislav Petkov:

 - Prevent unintentional page sharing by checking whether a page
   reference to a PMU samples page has been acquired properly before
   that

 - Make sure the LBR_SELECT MSR is saved/restored too

 - Reset the LBR_SELECT MSR when resetting the LBR PMU to clear any
   residual data left

* tag 'perf_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Avoid put_page() when GUP fails
  perf/x86/vlbr: Add c->flags to vlbr event constraints
  perf/x86/lbr: Reset LBR_SELECT during vlbr reset

Pull x86 fixes from Borislav Petkov:

 - Add the model number of a new, Raptor Lake CPU, to intel-family.h

 - Do not log spurious corrected MCEs on SKL too, due to an erratum

 - Clarify the path of paravirt ops patches upstream

 - Add an optimization to avoid writing out AMX components to sigframes
   when former are in init state

* tag 'x86_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Add Raptor Lake to Intel family
  x86/mce: Add errata workaround for Skylake SKX37
  MAINTAINERS: Add some information to PARAVIRT_OPS entry
  x86/fpu: Optimize out sigframe xfeatures when in init state