dt-bindings: display: convert Arm HDLCD to DT schema

The Arm HDLCD is a display controller that scans out a framebuffer and
hands a signal to a digital encoder to generate a DVI or HDMI signal.

Convert the existing DT binding to DT schema.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-10-andre.przywara@arm.com

dt-bindings: display: convert PL110/PL111 to DT schema

The Arm PL110 and PL111 are IP blocks that provide a display engine with
an LCD interface, being able to drive a variety of LC panels.

Convert the binding over to DT schema, to the DTs can be automatically
checked.
This still contains the deprecated "arm,pl11x,tft-r0g0b0-pads" property,
because this is used by several DTs in the tree.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[robh: make interrupts optional (not connected on Realview EB)]
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-9-andre.przywara@arm.com

dt-bindings: arm: convert vexpress-config to DT schema

The Arm Versatile Express system features a bridge device that provides
access to various smaller devices like clocks, reset gates and various
sensors.

Extract the second half of the informal vexpress-sysreg.txt binding and
make it proper DT schema compliant. This makes the old .txt binding
redundant, so remove it.

This describes both the actual parent configuration bridge, as well as
all the possible children devices.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-8-andre.przywara@arm.com

dt-bindings: arm: convert vexpress-sysregs to DT schema

The Arm Versatile Express system control register block provides GPIO
functionality to some devices and is also used for board identification.

Extract the first half of the informal vexpress-sysreg.txt binding and
make it proper DT schema compliant.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-7-andre.przywara@arm.com

dt-bindings: serio: add Arm PL050 DT schema

The Arm PL050 "Keyboard/Mouse Interface" is an Arm system IP providing a
PS/2 compatible serial interface.

Add a simple DT schema binding, based on the TRM[1], the existing DTs and
the Linux driver.

[1] https://developer.arm.com/documentation/ddi0143/latest

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-6-andre.przywara@arm.com

dt-bindings: sound: add Arm PL041 AACI DT schema

The Arm PrimeCell Advanced Audio CODEC Interface (AACI aka PL041) is
a peripheral that provides communication with an audio CODEC.

Add a simple DT schema binding for it, so that DTs can be validated
automatically.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-5-andre.przywara@arm.com

dt-bindings: arm: sp810: convert to DT schema

The Arm SP810 IP is a "system controller", providing clocks, timer and a
watchdog.

Convert the DT binding to DT schema, to allow automatic validation.

The existing .txt binding described all properties as required, but the
assigned-clock* and clock-output-names are actually not (from a hardware
perspective). The only existing driver I could find (in Linux) doesn't
require them either, so drop those properties from the "required" list.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-4-andre.przywara@arm.com

dt-bindings: arm: spe-pmu: convert to DT schema

Convert the Arm Statisical Profiling Extension (SPE) binding to DT
schema.
Not much to see here, basically just the announcement that SPE is
integrated on the system level and where the IRQ is routed to.

Move it into the more suitable perf/ directory on the way.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-3-andre.przywara@arm.com

dt-bindings: iommu: arm,smmu-v3: make PRI IRQ optional

The Page Request Interface (PRI) is an optional PCIe feature. As such, a
SMMU would not need to handle it if the PCIe host bridge or the SMMU
itself do not implement it. Also an SMMU could be connected to a platform
device, without any PRI functionality whatsoever.
In all cases there would be no SMMU PRI queue interrupt to be wired up
to an interrupt controller.
At the moment, with the "eventq,gerror,priq,cmdq-sync" order, we
would need to sacrifice the command queue sync interrupt as well, which
might not be desired.

Relax the binding to allow specifying certain useful combinations of
wired interrupts, for instance just the "gerror" interrupt, or omitting
both "pri" and "cmdq-sync".

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-2-andre.przywara@arm.com

Revert "dt-bindings: rcc: Add optional external ethernet RX clock properties"

This reverts commit 694ed9922bc821e7208bc6593b5eeb88f8382fd5. The same
commit was also applied to stm32 tree.

Signed-off-by: Rob Herring <robh@kernel.org>

dt-bindings: timer: Convert rda,8810pl-timer to YAML

Convert RDA Micro Timer bindings to DT schema format.

Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220504175502.GA2573@standask-GA-A55M-S2HP

dt-bindings: I2C: Add Qualcomm Geni based QUP I2C bindings

GENI(generic interface) based Qualcomm Universal Peripheral controller
can support multiple serial interfaces like SPI,UART and I2C.

Unlike other I2C controllers, QUP I2C bindings are present in parent
schema. Move it out from parent to an individual binding and let parent
refer to child schema later on.

Please note, current schema isn't complete as it misses out few
properties and thus, add these missing properties along the process.

Signed-off-by: Kuldeep Singh <singh.kuldeep87k@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220404182938.29492-2-singh.kuldeep87k@gmail.com

of: overlay: do not free changeset when of_overlay_apply returns error

New unittests for overlay notifiers reveal a memory leak in
of_overlay_apply() when a notifier returns an error for action
OF_OVERLAY_POST_APPLY.  The pr_err() message is:

   OF: ERROR: memory leak, expected refcount 1 instead of 3,
   of_node_get()/of_node_put() unbalanced - destroy cset entry: attach
   overlay node /testcase-data/overlay-node/test-bus/test-unittest17

Change the error path to no longer call free_overlay_changeset(),
and document that the caller of of_overlay_fdt_apply() may choose
to remove the overlay.

Update the unittest that triggered the error to expect the changed
return values and to call of_overlay_remove().

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220502181742.1402826-4-frowand.list@gmail.com

of: overlay: unittest: add tests for overlay notifiers

Add tests for overlay apply and remove notifiers.  Trigger errors
for each of the notifier actions.

These tests will reveal a memory leak problem when a notifier returns
an error for action OF_OVERLAY_POST_APPLY.  The pr_err() message is:

   OF: ERROR: memory leak, expected refcount 1 instead of 3,
   of_node_get()/of_node_put() unbalanced - destroy cset entry: attach
   overlay node /testcase-data/overlay-node/test-bus/test-unittest17

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220502181742.1402826-3-frowand.list@gmail.com

of: overlay: add entry to of_overlay_action_name[]

The values of enum of_overlay_notify_action are used to index into
array of_overlay_action_name.  Add an entry to of_overlay_action_name
for the value recently added to of_overlay_notify_action.

Array of_overlay_action_name[] is moved into include/linux/of.h
adjacent to enum of_overlay_notify_action to make the connection
between the two more obvious if either is modified in the future.

The only use of of_overlay_action_name is for error reporting in
overlay_notify().  All callers of overlay_notify() report the same
error, but with fewer details.  Remove the redundant error reports
in the callers.

Fixes: 067c098766c6 ("of: overlay: rework overlay apply and remove kfree()s")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220502181742.1402826-2-frowand.list@gmail.com

dt-bindings: mailbox: qcom-ipcc: add missing properties into example

These missing required properties are needed for
smp2p binding reference checks.

Also includes cosmetic change to the example formatting.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220426101837.16201-2-david@ixit.cz

dt-bindings: mailbox: qcom-ipcc: add missing compatible for SM8450

Fill missing compatible already used in SM8450 DTS.

Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220426101837.16201-1-david@ixit.cz

dt-bindings: gnss: Add Broacom BCM4751 family bindings

The Broadcom BCM4751 family of (A-)GPS chips have been around for
some years. The latest iteration BCM4753 is for example mounted
on the Huawei HiKey970.

Cc: devicetree@vger.kernel.org
Cc: phone-devel@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220425132215.1309216-1-linus.walleij@linaro.org

dt-bindings: eeprom/at24: Add samsung,s524ad0xd1 compatible

The samsung,s524ad0xd1 compatible is in use, but not documented. According
to arch/arm/mach-s3c/mach-smdk6410.c, the samsung,s524ad0xd1 is compatible
with the 24c128. As the schema requires a fallback compatible to the
corresponding Atmel compatible, 'atmel,24c128' is added as a fallback.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
Link: https://lore.kernel.org/r/20220426175938.2262966-1-robh@kernel.org

dt-bindings: spmi: spmi-pmic-arb: make interrupt properties as optional

Make all interrupt related properties as optional instead of
required.  Some boards do not required PMIC IRQ support and it
isn't needed to handle SPMI bus transactions, so specify it as
optional.

Signed-off-by: David Collins <collinsd@codeaurora.org>
Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1651108369-11059-9-git-send-email-quic_fenglinw@quicinc.com

dt-bindings: spmi: convert QCOM PMIC SPMI bindings to yaml

Convert Qualcomm PMIC SPMI binding to yaml format.

Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211227170151.73116-1-david@ixit.cz

dt-bindings: wkup-m3-ipc: Add firmware-name property

Document that the firmware-name property can be used to indicate a file
contains I2C sequences for PMIC voltage scaling during deep sleep.

Based on previous work by Russ Dill.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
[dfustini: split from driver patch and convert to json-schema]
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220426200741.712842-2-dfustini@baylibre.com

dt-bindings: fsl: convert fsl,layerscape-scfg to YAML

Convert the fsl,layerscape-scfg binding to the new YAML format.

In the device trees, the device node always have a "syscon"
compatible, which wasn't mentioned in the previous binding.

Also added, compared to the original binding, is the
interrupt-controller subnode as used in arch/arm/boot/dts/ls1021a.dtsi
as well as the litte-endian and big-endian properties.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220427075338.1156449-5-michael@walle.cc

dt-bindings: interrupt-controller: fsl,ls-extirq: convert to YAML

Convert the fsl,ls-extirq binding to the new YAML format.

In contrast to the original binding documentation, there are three
compatibles which are used in their corresponding device trees which
have a specific compatible and the (already documented) fallback
compatible:
 - "fsl,ls1046a-extirq", "fsl,ls1043a-extirq"
 - "fsl,ls2080a-extirq", "fsl,ls1088a-extirq"
 - "fsl,lx2160a-extirq", "fsl,ls1088a-extirq"

Depending on the number of the number of the external IRQs which is
usually 12 except for the LS1021A where there are only 6, the
interrupt-map-mask was reduced from 0xffffffff to 0xf and 0x7
respectively and the number of interrupt-map entries have to
match.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220427075338.1156449-4-michael@walle.cc

dt-bindings: arm: mediatek: infracfg: Convert to DT schema

Convert infracfg bindings to DT schema format. Not all drivers
currently implement resets, so #reset-cells is made a required
property only for those that do. Using power-controller in the
example node name makes #power-domain-cells required causing
a dt_binding_check error. To solve this, the node is renamed to
syscon@10001000.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220424084647.76577-4-y.oudjana@protonmail.com

dt-bindings: arm: mediatek: apmixedsys: Convert to DT schema

Convert apmixedsys bindings to DT schema format. MT2701, MT7623 and
MT7629 device trees currently have the syscon compatible without
it being mentioned in the old DT bindings file which introduces
dtbs_check errors when converting to DT schema as-is, so
mediatek,mt2701-apmixedsys and mediatek,mt7629-apmixedsys are placed
in the last items list with the syscon compatible, and syscon is
added to the mediatek,mt7623-apmixedsys list.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220424084647.76577-3-y.oudjana@protonmail.com

dt-bindings: arm: mediatek: topckgen: Convert to DT schema

Convert topckgen bindings to DT schema format. MT2701, MT7623 and
MT7629 device trees currently have the syscon compatible without
it being mentioned in the old DT bindings file which introduces
dtbs_check errors when converting to DT schema as-is, so
mediatek,mt2701-topckgen and mediatek,mt7629-topckgen are placed
in the last items list with the syscon compatible, and syscon is
added to the mediatek,mt7623-topckgen list.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220424084647.76577-2-y.oudjana@protonmail.com

dt-bindings: Drop empty and unreferenced binding .txt files

Drop a couple of old, empty .txt binding files which are no longer
referenced.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220422191958.2589318-1-robh@kernel.org

dt-bindings: mfd: mediatek: Add bindings for MT6360 PMIC

Add bindings for MT6360 PMIC

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1608779989-9641-1-git-send-email-gene.chen.richtek@gmail.com

dt-bindings: timer: Add compatible for am6 for TI timer-dm

Let's add compatible for ti,am654-timer for TI am64, am65 and j72 SoCs.
As the timer hardware is the same between am64, am65 and j72 we use the
compatible name for the earliest SoC with this timer.

The timer interrupts are not routable for the operating system for some
timers on am6. Let's make sure the interrupts are configured for the
timers on all other SoCs.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220414085807.7389-3-tony@atomide.com

dt-bindings: timer: Update TI timer to yaml

Let's update the TI timer binding to use yaml. As this binding is specific
to the TI dual-mode timers also known as dm-timers, let's use file name
ti,timer-dm.yaml to avoid confusion with other timers.

We add checks for the deprecated ti,hwmods property as done for other TI
device driver bindings earlier.

We also correct the issue with the old binding that was out of date for
several properties.

The am43 related timers are undocumented, but compatible with the am3
timers. Let's add the am43 timers too.

The dm814 and dm816 timers are missing, let's add them.

Some timers on some SoCs are dual mapped, like the ABE timers on omap4
and 5. The reg property maxItems must be updated to 2.

The timer clocks can be managed by the parent interconnect target module
with no clocks assigned for the timer node. And in some cases, the SoC may
need to configure additional system clock for the timer in addition to the
functional clock.

The clock names are optional and not specific to the comptible property.
For example, dra7 timers on l3 interconnect do not need clock-names, while
the timers on dra7 l4 interconnect need them with both being compatible
with ti,omap5430-timer.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220414085807.7389-2-tony@atomide.com

dt-bindings: timer: renesas: ostm: Document Renesas RZ/G2UL OSTM

Document the General Timer Module(a.k.a OSTM) found on the RZ/G2UL SoC.
OSTM module is identical to one found RZ/G2L SoC. No driver changes are
required as generic compatible string "renesas,ostm" will be used as a
fallback.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220425141828.197321-1-biju.das.jz@bp.renesas.com

dt-bindings: fsl: convert fsl,layerscape-dcfg to YAML

Convert the fsl,layerscape-dcfg binding to the new YAML format.

In the device trees, the device node always have a "syscon"
compatible, which wasn't mentioned in the previous binding.

One thing added here, compared to the original binding is the clock
controller subnode of the LS1028A SoC and its "simple-mfd" compatible as
used in arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi as well as the
little-endian and big-endian properties.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220425140433.33936-1-michael@walle.cc

dt-bindings: i2c: renesas,riic: Document RZ/G2UL SoC

Document RZ/G2UL I2C bindings. RZ/G2UL I2C is identical to one found on
the RZ/G2L SoC. No driver changes are required as RZ/G2L compatible
string "renesas,riic-rz" will be used as a fallback.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220425133152.176949-1-biju.das.jz@bp.renesas.com

dt-bindings: gnss: Rewrite Mediatek bindings in YAML

This rewrites the Mediatek GNSS bindings in YAML.

Cc: devicetree@vger.kernel.org
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220425132947.1311171-1-linus.walleij@linaro.org

of: overlay: rework overlay apply and remove kfree()s

Fix various kfree() issues related to of_overlay_apply().
  - Double kfree() of fdt and tree when init_overlay_changeset()
    returns an error.
  - free_overlay_changeset() free the root of the unflattened
    overlay (variable tree) instead of the memory that contains
    the unflattened overlay.
  - For the case of a failure during applying an overlay, move kfree()
    of new_fdt and overlay_mem into free_overlay_changeset(), which
    is called by the function that allocated them.
  - For the case of removing an overlay, the kfree() of new_fdt and
    overlay_mem remains in free_overlay_changeset().
  - Check return value of of_fdt_unflatten_tree() for error instead
    of checking the returned value of overlay_root.
  - When storing pointers to allocated objects in ovcs, do so as
    near to the allocation as possible instead of in deeply layered
    function.

More clearly document policy related to lifetime of pointers into
overlay memory.

Double kfree()
Reported-by: Slawomir Stepien <slawomir.stepien@nokia.com>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220420222505.928492-3-frowand.list@gmail.com

of: overlay: rename variables to be consistent

Variables change name across function calls when there is not a good
reason to do so.  Fix by changing "fdt" to "new_fdt" and "tree" to
"overlay_root".

The name disparity was confusing when creating the following commit.
The name changes are in this separate commit to make review of the
following commmit less complex.

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220420222505.928492-2-frowand.list@gmail.com

of: overlay: do not break notify on NOTIFY_{OK|STOP}

We should not break overlay notifications on NOTIFY_{OK|STOP}
otherwise we might break on the first fragment. We should only stop
notifications if a *real* errno is returned by one of the listeners.

Fixes: a1d19bd4cf1fe ("of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220420130205.89435-1-nuno.sa@analog.com

docs: dt: writing-schema: mention yamllint

The dtschema uses yamllint, if present, to check the syntax of the
files, so document this.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220419084942.27409-1-krzysztof.kozlowski@linaro.org

dt-bindings: soc: qcom: smd-rpm: Fix missing MSM8936 compatible

Add compatible msm8936. msm8936 covers both msm8936 and msm8939.
The relevant driver already has the compat string but, we haven't
documented it.

Fixes: d6e52482f5ab ("drivers: soc: Add MSM8936 SMD RPM compatible")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220418231857.3061053-1-bryan.odonoghue@linaro.org

of: of_property_read_string return -ENODATA when !length

When the length of the string is zero of_property_read_string should
return -ENODATA according to the description of the function.

However, of_property_read_string doesn't check prop->length. If
prop->length is zero, return -ENODATA.

Without this patch the following command in u-boot:

fdt set /chosen/node property-name

results in of_property_read_string returning -EILSEQ when attempting to
read property-name. With this patch, it returns -ENODATA as expected.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220416003028.1315268-1-sstabellini@kernel.org

dt-bindings: wkup-m3-ipc: Add ti,set-io-isolation property

Add documentation for the ti,set-io-isolation DT property on the wkup_m3_ipc
node which tells the wkup_m3_ipc driver to use the wkup_m3 to enable
IO Isolation during low power mode transitions on am43xx platforms.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
[dfustini: convert to YAML, make DTS example that passes check]
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220414192722.2978837-2-dfustini@baylibre.com

Merge branch 'dt/linus' into dt/next

Pick up new meta-schema warning fixes.

dt-bindings: display: panel-timing: Define a single type for properties

It's not good practice to define multiple types for the same property, so
factor out the type reference making the properties always an uint32-array
with a length of 1 or 3 items.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/r/20220413140016.3131013-1-robh@kernel.org

dt-bindings: Fix array constraints on scalar properties

Scalar properties shouldn't have array constraints (minItems, maxItems,
items). These constraints can simply be dropped with any constraints under
'items' moved up a level.

Cc: Agathe Porte <agathe.porte@nokia.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Olivier Moysan <olivier.moysan@foss.st.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Cc: Yunfei Dong <yunfei.dong@mediatek.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: linux-hwmon@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-iio@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: linux-remoteproc@vger.kernel.org
Cc: linux-spi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220413140121.3132837-1-robh@kernel.org

dt-bindings: soc: qcom,smp2p: convert to dtschema

Convert the Qualcomm Shared Memory Point 2 Point bindings to DT Schema.

Changes against original bindings: enforce only specific names of child
nodes, instead of any names.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220411155528.502889-1-krzysztof.kozlowski@linaro.org

dt-bindings: rcc: Add optional external ethernet RX clock properties

Describe optional external ethernet RX clock in the DT binding
to fix dtbs_check warnings like:

arch/arm/boot/dts/stm32mp153c-dhcom-drc02.dt.yaml: rcc@50000000: 'assigned-clock-parents', 'assigned-clock-rates', 'assigned-clocks', 'clock-names', 'clocks' do not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Cc: Rob Herring <robh+dt@kernel.org>
To: devicetree@vger.kernel.org
Acked-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220410220514.21779-1-marex@denx.de

dt-bindings: wkup-m3-ipc: Add vtt toggle gpio pin property

Document Wakeup M3 IPC property that indicates a GPIO pin is connected
to the enable pin on DDR VTT regulator and can be toggled during low
power mode transitions.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
[dfustini: converted to YAML, removed unnecessary "ti,needs-vtt-toggle"]
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220409211215.2529387-2-dfustini@baylibre.com

dt-bindings: nvmem: snvs-lpgpr: Add i.MX8M compatible strings

Add compatible strings for i.MX8M(Q), i.MX8M Mini, i.MX8M Nano, i.MX8M Plus.
All these SoCs have the SNVS LPGPR registers and they are at the same offset
as on i.MX7D.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anson Huang <Anson.Huang@nxp.com>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Oleksij Rempel <linux@rempel-privat.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: devicetree@vger.kernel.org
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407103016.16543-1-marex@denx.de

of/irq: Use interrupts-extended to find parent

The RISC-V PLIC binding uses interrupts-extended to specify its parent
domain(s). That binding does not allow the interrupt-parent property to
appear in the irqchip node. This prevents of_irq_init from properly
detecting the irqchip hierarchy.

If no interrupt-parent property is present in the enclosing bus or root
node, then desc->interrupt_parent will be NULL for both the per-CPU
RISC-V INTC (the actual root domain) and the RISC-V PLIC. Similarly, if
the bus or root node specifies `interrupt-parent = <&plic>`, then
of_irq_init will hit the `desc->interrupt_parent == np` check, and again
all parents will be NULL. So things happen to work today for some boards
due to Makefile ordering.

However, things break when another irqchip ("foo") is stacked on top of
the PLIC. The bus or root node will have `interrupt-parent = <&foo>`,
since that is what all of the other peripherals need. When of_irq_init
runs, it will try to find the PLIC's parent domain. of_irq_find_parent
will fall back to using the interrupt-parent property of the PLIC's
parent node (i.e. the bus or root node), and of_irq_init will see "foo"
as the PLIC's parent domain. But this is wrong, because "foo" is
actually the PLIC's child domain!

So of_irq_init wrongly attempts to init the stacked irqchip before the
PLIC. This fails and breaks booting.

Fix this by using the first node referenced by interrupts-extended as
the parent when that property is present. This allows of_irq_init to see
the relationship between the PLIC and the per-CPU RISC-V INTC, and thus
only the RISC-V INTC is (correctly) considered a root domain.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220412051529.6293-1-samuel@sholland.org

dt-bindings: power: renesas,rcar-sysc: correct typo in path

Fix typo '.' -> '/' in the path to headers.

Fixes: 981a34054038 ("dt-bindings: power: renesas,rcar-sysc: drop useless consumer example")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220411095317.221317-1-krzysztof.kozlowski@linaro.org

dt-bindings: trivial-devices: Document CPLD on Menlo boards

The CPLD on Menlo boards is used to operate custom hardware,
document the CPLD DT binding as trivial SPI device.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: NXP Linux Team <linux-imx@nxp.com>
To: linux-spi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407210131.256045-1-marex@denx.de

dt-bindings: trivial-devices: Document CPLD on DH electronics boards

The CPLD on DH electronics boards is used to model arbitrary custom
glue logic, however it does have SPI interface. Document the CPLD DT
binding as trivial SPI device.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: NXP Linux Team <linux-imx@nxp.com>
To: linux-spi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407210106.256027-1-marex@denx.de

dt-bindings: soc: ti: wkup_m3_ipc: convert bindings to json-schema

Convert the wkup_m3_ipc bindings documentation to json-schema.

Link: https://lore.kernel.org/linux-arm-kernel/20220221125522.l3tntb6i7yjxp6vb@flattered/
Suggested-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407154618.2297171-1-dfustini@baylibre.com

dt-bindings: thermal: tsens: Add SM6350 compatible

Add devicetree compatible for tsens on SM6350 SoC.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Acked-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211213082614.22651-6-luca.weiss@fairphone.com

dt-bindings: qcom,pdc: Add SM6350 compatible

Add devicetree compatible for pdc on SM6350 SoC.

Also correct the compatibles for sm8250 and sm8350.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211213082614.22651-4-luca.weiss@fairphone.com

dt-bindings: power: renesas,rcar-sysc: drop useless consumer example

Consumer examples in the bindings of resource providers are trivial,
useless and duplication of code.  Remove the example code for consumer.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407193542.17230-1-krzysztof.kozlowski@linaro.org

dt-bindings: align SPI NOR node name with dtschema

The node names should be generic and SPI NOR dtschema expects "flash".

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407143405.295907-1-krzysztof.kozlowski@linaro.org

dt-bindings: reset: Drop the hisilicon,hi6220-reset binding

The hisilicon,hi6220-sysctrl, hisilicon,hi6220-mediactrl, and
hisilicon,hi6220-aoctrl controllers are already described in:

  Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml
  Documentation/devicetree/bindings/arm/hisilicon/controller/hi6220-domain-ctrl.yaml

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407145802.4060130-1-p.zabel@pengutronix.de

dt-bindings: i2c: convert i2c-mt65xx to json-schema

Convert I2C binding for MediaTek SoCs to Devicetree schema.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220407094753.13282-1-angelogioacchino.delregno@collabora.com

dt-bindings: vendor-prefixes: add Enclustra

Add vendor prefix for Enclustra GmbH (https://www.enclustra.com).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220406160728.720902-1-krzysztof.kozlowski@linaro.org

dt-bindings: qcom: qcom,gsbi: convert to dtschema

Convert the Qualcomm General Serial Bus Interface (GSBI) to DT
Schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220405063451.12011-10-krzysztof.kozlowski@linaro.org

dt-bindings: i2c: qcom,i2c-qup: convert to dtschema

Convert the Qualcomm Universal Peripheral (QUP) I2C controller to DT
Schema.

Add missing properties: dma and dma-names, pinctrl states (to indicate
support for sleep pinctrl).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220405063451.12011-9-krzysztof.kozlowski@linaro.org

dt-bindings: serial: qcom,msm-uartdm: convert to dtschema

Convert the Qualcomm MSM Serial UARTDM bindings to DT Schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220405063451.12011-8-krzysztof.kozlowski@linaro.org

spi: dt-bindings: qcom,spi-qup: convert to dtschema

Convert the Qualcomm Universal Peripheral (QUP) Serial Peripheral
Interface (SPI) bindings to DT Schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Kuldeep Singh <singh.kuldeep87k@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220405063451.12011-7-krzysztof.kozlowski@linaro.org

dt-bindings: qcom: update maintainers (drop Akash and Mukesh)

Emails to Akash Asthana and Mukesh Savaliya bounce (550: Recipient
address rejected: User unknown in virtual alias table), so switch
maintainer to Bjorn (as active Qualcomm platform maintainer).

Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220405063724.12850-1-krzysztof.kozlowski@linaro.org

dt-bindings: gpu: mali-bifrost: Document RZ/V2L SoC

The Renesas RZ/V2L SoC (a.k.a R9A07G054) has a Bifrost Mali-G31 GPU,
add a compatible string for it.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220308211543.3081-1-prabhakar.mahadev-lad.rj@bp.renesas.com

dt-bindings: net: snps: remove duplicate name

snps,dwmac has duplicated name for loongson,ls2k-dwmac and
loongson,ls7a-dwmac.

Signed-off-by: Dongjin Yang <dj76.yang@samsung.com>
Fixes: 68277749a013 ("dt-bindings: dwmac: Add bindings for new Loongson SoC and bridge chip")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220404022857epcms1p6e6af1a6a86569f339e50c318abde7d3c@epcms1p6

dt-bindings: net: smsc,lan91c111 convert to schema

Convert the smsc lan91c9x and lan91c1xx controller device tree
bindings documentation to json-schema.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220331154536.1544220-2-rui.silva@linaro.org

of/platform: Drop static setup of IRQ resource from DT core

Now that all the DT drivers have switched to platform_get_irq() we can now
safely drop the static setup of IRQ resource from DT core code.

With the above change hierarchical setup of irq domains is no longer
bypassed and thus allowing hierarchical interrupt domains to describe
interrupts using "interrupts" DT property.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220316200633.28974-1-prabhakar.mahadev-lad.rj@bp.renesas.com

docs: dt: writing-schema: mention coding style

Mention the usage of YAML coding style.  Describe explicitly that
four-space indentation in DTS examples is preferred, because:
1. The YAML's default two-space indentation for DTS code makes it
   significantly less readable.
2. Linux coding style tabs would introduce inconsistency (entire file is
   indented with spaces).
3. On the other hand, eight spaces would not align with example's
   opening '  - |' part.  Four spaces makes the code nicely aligned with
   it.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220403081849.8051-2-krzysztof.kozlowski@linaro.org

docs: dt: writing-bindings: describe typical cases

Add a chapter for caveats or typical mistakes.  Source: Rob Herring's
(Devicetree bindings maintainer) comments on LKML.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220403081849.8051-1-krzysztof.kozlowski@linaro.org

dt-bindings: net: qcom,ipa: finish the qcom,smp2p example

The example using qcom,smp2p should have all necessary properties, to
avoid DT schema validation warnings.

Reported-by: Rob Herring <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220402155551.16509-2-krzysztof.kozlowski@linaro.org

dt-bindings: white-space cleanups

Remove trailing white-spaces and trailing blank lines (yamllint with
default options does not like them).

Suggested-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220402192819.154691-1-krzysztof.kozlowski@linaro.org

dt-bindings: PCI: uniphier: Convert uniphier-pcie.txt to json-schema

Convert the file into a JSON description at the yaml format.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1648617814-9217-2-git-send-email-hayashi.kunihiko@socionext.com

dt-bindings: Fix 'enum' lists with duplicate entries

There's no reason to list the same value twice in an 'enum'. Fix all the
occurrences in the tree. A meta-schema change will catch future ones.

Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Yunfei Dong <yunfei.dong@mediatek.com>
Cc: - <patches@opensource.cirrus.com>
Cc: linux-media@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220401141247.2993925-1-robh@kernel.org

dt-bindings: irqchip: mrvl,intc: refresh maintainers

Jason's email bounces and his address was dropped from maintainers in
commit 509920aee72a ("MAINTAINERS: Move Jason Cooper to CREDITS"), so
drop him here too.  Switch other maintainers from IRQCHIP subsystem
maintainers to Marvell Orion platform maintainers because its a bigger
chance they know the hardware.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220317142952.479413-1-krzysztof.kozlowski@canonical.com

dt-bindings: Fix incomplete if/then/else schemas

A recent review highlighted that the json-schema meta-schema allows any
combination of if/then/else schema keywords even though if, then or else
by themselves makes little sense. With an added meta-schema to only
allow valid combinations, there's a handful of schemas found which need
fixing in a variety of ways. Incorrect indentation is the most common
issue.

Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Olivier Moysan <olivier.moysan@foss.st.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Georgi Djakov <djakov@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Dmitry Osipenko <digetx@gmail.com>
Cc: linux-iio@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-phy@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220330145741.3044896-1-robh@kernel.org

dt-bindings: power: renesas,apmu: Fix cpus property limits

"make dtbs_check":

    arch/arm/boot/dts/r8a7791-koelsch.dtb: apmu@e6152000: cpus:0: [6, 7] is too long
    From schema: Documentation/devicetree/bindings/power/renesas,apmu.yaml

Correct the minimum and maximum number of CPUs controlled by a single
APMU instance.

Fixes: 39bd2b6a3783b899 ("dt-bindings: Improve phandle-array schemas")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/9ece1a07bbcb95abc9d80e6a6ecc95806a294a11.1648645279.git.geert+renesas@glider.be

dt-bindings: extcon: maxim,max77843: fix ports type

The "ports" property can contain multiple ports as name suggests, so it
should be using "ports" type from device graphs.

Reported-by: Rob Herring <robh@kernel.org>
Fixes: 9729cad0278b ("dt-bindings: extcon: maxim,max77843: Add MAX77843 bindings")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220310073258.24060-1-krzysztof.kozlowski@canonical.com

Linux 5.18-rc1

Merge tag 'trace-v5.18-2' of git://git./linux/kernel/git/rostedt/linux-trace

Pull more tracing updates from Steven Rostedt:

 - Rename the staging files to give them some meaning. Just
   stage1,stag2,etc, does not show what they are for

 - Check for NULL from allocation in bootconfig

 - Hold event mutex for dyn_event call in user events

 - Mark user events to broken (to work on the API)

 - Remove eBPF updates from user events

 - Remove user events from uapi header to keep it from being installed.

 - Move ftrace_graph_is_dead() into inline as it is called from hot
   paths and also convert it into a static branch.

* tag 'trace-v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Move user_events.h temporarily out of include/uapi
  ftrace: Make ftrace_graph_is_dead() a static branch
  tracing: Set user_events to BROKEN
  tracing/user_events: Remove eBPF interfaces
  tracing/user_events: Hold event_mutex during dyn_event_add
  proc: bootconfig: Add null pointer check
  tracing: Rename the staging files for trace_events

Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "A single revert to fix a boot regression seen when clk_put() started
  dropping rate range requests. It's best to keep various systems
  booting so we'll kick this out and try again next time"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  Revert "clk: Drop the rate range on clk_put()"

Merge tag 'x86-urgent-2022-04-03' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "A set of x86 fixes and updates:

   - Make the prctl() for enabling dynamic XSTATE components correct so
     it adds the newly requested feature to the permission bitmap
     instead of overwriting it. Add a selftest which validates that.

   - Unroll string MMIO for encrypted SEV guests as the hypervisor
     cannot emulate it.

   - Handle supervisor states correctly in the FPU/XSTATE code so it
     takes the feature set of the fpstate buffer into account. The
     feature sets can differ between host and guest buffers. Guest
     buffers do not contain supervisor states. So far this was not an
     issue, but with enabling PASID it needs to be handled in the buffer
     offset calculation and in the permission bitmaps.

   - Avoid a gazillion of repeated CPUID invocations in by caching the
     values early in the FPU/XSTATE code.

   - Enable CONFIG_WERROR in x86 defconfig.

   - Make the X86 defconfigs more useful by adapting them to Y2022
     reality"

* tag 'x86-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu/xstate: Consolidate size calculations
  x86/fpu/xstate: Handle supervisor states in XSTATE permissions
  x86/fpu/xsave: Handle compacted offsets correctly with supervisor states
  x86/fpu: Cache xfeature flags from CPUID
  x86/fpu/xsave: Initialize offset/size cache early
  x86/fpu: Remove unused supervisor only offsets
  x86/fpu: Remove redundant XCOMP_BV initialization
  x86/sev: Unroll string mmio with CC_ATTR_GUEST_UNROLL_STRING_IO
  x86/config: Make the x86 defconfigs a bit more usable
  x86/defconfig: Enable WERROR
  selftests/x86/amx: Update the ARCH_REQ_XCOMP_PERM test
  x86/fpu/xstate: Fix the ARCH_REQ_XCOMP_PERM implementation

Merge tag 'core-urgent-2022-04-03' of git://git./linux/kernel/git/tip/tip

Pull RT signal fix from Thomas Gleixner:
 "Revert the RT related signal changes. They need to be reworked and
  generalized"

* tag 'core-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"

Merge tag 'dma-mapping-5.18-1' of git://git.infradead.org/users/hch/dma-mapping

Pull more dma-mapping updates from Christoph Hellwig:

 - fix a regression in dma remap handling vs AMD memory encryption (me)

 - finally kill off the legacy PCI DMA API (Christophe JAILLET)

* tag 'dma-mapping-5.18-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: move pgprot_decrypted out of dma_pgprot
  PCI/doc: cleanup references to the legacy PCI DMA API
  PCI: Remove the deprecated "pci-dma-compat.h" API

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:

 - avoid unnecessary rebuilds for library objects

 - fix return value of __setup handlers

 - fix invalid input check for "crashkernel=" kernel option

 - silence KASAN warnings in unwind_frame

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 9191/1: arm/stacktrace, kasan: Silence KASAN warnings in unwind_frame()
  ARM: 9190/1: kdump: add invalid input check for 'crashkernel=0'
  ARM: 9187/1: JIVE: fix return value of __setup handler
  ARM: 9189/1: decompressor: fix unneeded rebuilds of library objects

Revert "clk: Drop the rate range on clk_put()"

This reverts commit 7dabfa2bc4803eed83d6f22bd6f045495f40636b. There are
multiple reports that this breaks boot on various systems. The common
theme is that orphan clks are having rates set on them when that isn't
expected. Let's revert it out for now so that -rc1 boots.

Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Reported-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Link: https://lore.kernel.org/r/366a0232-bb4a-c357-6aa8-636e398e05eb@samsung.com
Cc: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20220403022818.39572-1-sboyd@kernel.org

Merge tag 'perf-tools-for-v5.18-2022-04-02' of git://git./linux/kernel/git/acme/linux

Pull more perf tools updates from Arnaldo Carvalho de Melo:

 - Avoid SEGV if core.cpus isn't set in 'perf stat'.

 - Stop depending on .git files for building PERF-VERSION-FILE, used in
   'perf --version', fixing some perf tools build scenarios.

 - Convert tracepoint.py example to python3.

 - Update UAPI header copies from the kernel sources: socket,
   mman-common, msr-index, KVM, i915 and cpufeatures.

 - Update copy of libbpf's hashmap.c.

 - Directly return instead of using local ret variable in
   evlist__create_syswide_maps(), found by coccinelle.

* tag 'perf-tools-for-v5.18-2022-04-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf python: Convert tracepoint.py example to python3
  perf evlist: Directly return instead of using local ret variable
  perf cpumap: More cpu map reuse by merge.
  perf cpumap: Add is_subset function
  perf evlist: Rename cpus to user_requested_cpus
  perf tools: Stop depending on .git files for building PERF-VERSION-FILE
  tools headers cpufeatures: Sync with the kernel sources
  tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  tools kvm headers arm64: Update KVM headers from the kernel sources
  tools arch x86: Sync the msr-index.h copy with the kernel sources
  tools headers UAPI: Sync asm-generic/mman-common.h with the kernel
  perf beauty: Update copy of linux/socket.h with the kernel sources
  perf tools: Update copy of libbpf's hashmap.c
  perf stat: Avoid SEGV if core.cpus isn't set

Merge tag 'kbuild-fixes-v5.18' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix empty $(PYTHON) expansion.

 - Fix UML, which got broken by the attempt to suppress Clang warnings.

 - Fix warning message in modpost.

* tag 'kbuild-fixes-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  modpost: restore the warning message for missing symbol versions
  Revert "um: clang: Strip out -mno-global-merge from USER_CFLAGS"
  kbuild: Remove '-mno-global-merge'
  kbuild: fix empty ${PYTHON} in scripts/link-vmlinux.sh
  kconfig: remove stale comment about removed kconfig_print_symbol()

Merge tag 'mips_5.18_1' of git://git./linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - build fix for gpio

 - fix crc32 build problems

 - check for failed memory allocations

* tag 'mips_5.18_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: crypto: Fix CRC32 code
  MIPS: rb532: move GPIOD definition into C-files
  MIPS: lantiq: check the return value of kzalloc()
  mips: sgi-ip22: add a check for the return of kzalloc()

Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:

 - Only do MSR filtering for MSRs accessed by rdmsr/wrmsr

 - Documentation improvements

 - Prevent module exit until all VMs are freed

 - PMU Virtualization fixes

 - Fix for kvm_irq_delivery_to_apic_fast() NULL-pointer dereferences

 - Other miscellaneous bugfixes

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (42 commits)
  KVM: x86: fix sending PV IPI
  KVM: x86/mmu: do compare-and-exchange of gPTE via the user address
  KVM: x86: Remove redundant vm_entry_controls_clearbit() call
  KVM: x86: cleanup enter_rmode()
  KVM: x86: SVM: fix tsc scaling when the host doesn't support it
  kvm: x86: SVM: remove unused defines
  KVM: x86: SVM: move tsc ratio definitions to svm.h
  KVM: x86: SVM: fix avic spec based definitions again
  KVM: MIPS: remove reference to trap&emulate virtualization
  KVM: x86: document limitations of MSR filtering
  KVM: x86: Only do MSR filtering when access MSR by rdmsr/wrmsr
  KVM: x86/emulator: Emulate RDPID only if it is enabled in guest
  KVM: x86/pmu: Fix and isolate TSX-specific performance event logic
  KVM: x86: mmu: trace kvm_mmu_set_spte after the new SPTE was set
  KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
  KVM: x86: Trace all APICv inhibit changes and capture overall status
  KVM: x86: Add wrappers for setting/clearing APICv inhibits
  KVM: x86: Make APICv inhibit reasons an enum and cleanup naming
  KVM: X86: Handle implicit supervisor access with SMAP
  KVM: X86: Rename variable smap to not_smap in permission_fault()
  ...

modpost: restore the warning message for missing symbol versions

This log message was accidentally chopped off.

I was wondering why this happened, but checking the ML log, Mark
precisely followed my suggestion [1].

I just used "..." because I was too lazy to type the sentence fully.
Sorry for the confusion.

[1]: https://lore.kernel.org/all/CAK7LNAR6bXXk9-ZzZYpTqzFqdYbQsZHmiWspu27rtsFxvfRuVA@mail.gmail.com/

Fixes: 4a6795933a89 ("kbuild: modpost: Explicitly warn about unprototyped symbols")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

Merge tag 'for-5.18/drivers-2022-04-02' of git://git.kernel.dk/linux-block

Pull block driver fix from Jens Axboe:
 "Got two reports on nbd spewing warnings on load now, which is a
  regression from a commit that went into your tree yesterday.

  Revert the problematic change for now"

* tag 'for-5.18/drivers-2022-04-02' of git://git.kernel.dk/linux-block:
  Revert "nbd: fix possible overflow on 'first_minor' in nbd_dev_add()"

Merge tag 'pci-v5.18-changes-2' of git://git./linux/kernel/git/helgaas/pci

Pull pci fix from Bjorn Helgaas:

 - Fix Hyper-V "defined but not used" build issue added during merge
   window (YueHaibing)

* tag 'pci-v5.18-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: hv: Remove unused hv_set_msi_entry_from_desc()

Merge tag 'tag-chrome-platform-for-v5.18' of git://git./linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:
 "cros_ec_typec:

   - Check for EC device - Fix a crash when using the cros_ec_typec
     driver on older hardware not capable of typec commands

   - Make try power role optional

   - Mux configuration reorganization series from Prashant

  cros_ec_debugfs:

   - Fix use after free. Thanks Tzung-bi

  sensorhub:

   - cros_ec_sensorhub fixup - Split trace include file

  misc:

   - Add new mailing list for chrome-platform development:

chrome-platform@lists.linux.dev

     Now with patchwork!"

* tag 'tag-chrome-platform-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec_debugfs: detach log reader wq from devm
  platform: chrome: Split trace include file
  platform/chrome: cros_ec_typec: Update mux flags during partner removal
  platform/chrome: cros_ec_typec: Configure muxes at start of port update
  platform/chrome: cros_ec_typec: Get mux state inside configure_mux
  platform/chrome: cros_ec_typec: Move mux flag checks
  platform/chrome: cros_ec_typec: Check for EC device
  platform/chrome: cros_ec_typec: Make try power role optional
  MAINTAINERS: platform-chrome: Add new chrome-platform@lists.linux.dev list

Revert "nbd: fix possible overflow on 'first_minor' in nbd_dev_add()"

This reverts commit 6d35d04a9e18990040e87d2bbf72689252669d54.

Both Gabriel and Borislav report that this commit casues a regression
with nbd:

sysfs: cannot create duplicate filename '/dev/block/43:0'

Revert it before 5.18-rc1 and we'll investigage this separately in
due time.

Link: https://lore.kernel.org/all/YkiJTnFOt9bTv6A2@zn.tnic/
Reported-by: Gabriel L. Somlo <somlo@cmu.edu>
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

watch_queue: Free the page array when watch_queue is dismantled

Commit 7ea1a0124b6d ("watch_queue: Free the alloc bitmap when the
watch_queue is torn down") took care of the bitmap, but not the page
array.

  BUG: memory leak
  unreferenced object 0xffff88810d9bc140 (size 32):
  comm "syz-executor335", pid 3603, jiffies 4294946994 (age 12.840s)
  hex dump (first 32 bytes):
    40 a7 40 04 00 ea ff ff 00 00 00 00 00 00 00 00  @.@.............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
     kmalloc_array include/linux/slab.h:621 [inline]
     kcalloc include/linux/slab.h:652 [inline]
     watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251
     pipe_ioctl+0x82/0x140 fs/pipe.c:632
     vfs_ioctl fs/ioctl.c:51 [inline]
     __do_sys_ioctl fs/ioctl.c:874 [inline]
     __se_sys_ioctl fs/ioctl.c:860 [inline]
     __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860
     do_syscall_x64 arch/x86/entry/common.c:50 [inline]

Reported-by: syzbot+25ea042ae28f3888727a@syzkaller.appspotmail.com
Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Jann Horn <jannh@google.com>
Link: https://lore.kernel.org/r/20220322004654.618274-1-eric.dumazet@gmail.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

tracing: mark user_events as BROKEN

After being merged, user_events become more visible to a wider audience
that have concerns with the current API.

It is too late to fix this for this release, but instead of a full
revert, just mark it as BROKEN (which prevents it from being selected in
make config).  Then we can work finding a better API.  If that fails,
then it will need to be completely reverted.

To not have the code silently bitrot, still allow building it with
COMPILE_TEST.

And to prevent the uapi header from being installed, then later changed,
and then have an old distro user space see the old version, move the
header file out of the uapi directory.

Surround the include with CONFIG_COMPILE_TEST to the current location,
but when the BROKEN tag is taken off, it will use the uapi directory,
and fail to compile.  This is a good way to remind us to move the header
back.

Link: https://lore.kernel.org/all/20220330155835.5e1f6669@gandalf.local.home
Link: https://lkml.kernel.org/r/20220330201755.29319-1-mathieu.desnoyers@efficios.com
Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

tracing: Move user_events.h temporarily out of include/uapi

While user_events API is under development and has been marked for broken
to not let the API become fixed, move the header file out of the uapi
directory. This is to prevent it from being installed, then later changed,
and then have an old distro user space update with a new kernel, where
applications see the user_events being available, but the old header is in
place, and then they get compiled incorrectly.

Also, surround the include with CONFIG_COMPILE_TEST to the current
location, but when the BROKEN tag is taken off, it will use the uapi
directory, and fail to compile. This is a good way to remind us to move
the header back.

Link: https://lore.kernel.org/all/20220330155835.5e1f6669@gandalf.local.home
Link: https://lkml.kernel.org/r/20220330201755.29319-1-mathieu.desnoyers@efficios.com
Link: https://lkml.kernel.org/r/20220401143903.188384f3@gandalf.local.home
Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>