linux-stable.git/Documentation, branch v5.17.2

docs: sysctl/kernel: add missing bit to panic_print

2022-04-08T11:59:03+00:00

commit a1ff1de00db21ecb956213f046b79741b64c6b65 upstream.

Patch series "Some improvements on panic_print".

This is a mix of a documentation fix with some additions to the
"panic_print" syscall / parameter.  The goal here is being able to collect
all CPUs backtraces during a panic event and also to enable "panic_print"
in a kdump event - details of the reasoning and design choices in the
patches.

This patch (of 3):

Commit de6da1e8bcf0 ("panic: add an option to replay all the printk
message in buffer") added a new bit to the sysctl/kernel parameter
"panic_print", but the documentation was added only in
kernel-parameters.txt, not in the sysctl guide.

Fix it here by adding bit 5 to sysctl admin-guide documentation.

[rdunlap@infradead.org: fix table format warning]
  Link: https://lkml.kernel.org/r/20220109055635.6999-1-rdunlap@infradead.org

Link: https://lkml.kernel.org/r/20211109202848.610874-1-gpiccoli@igalia.com
Link: https://lkml.kernel.org/r/20211109202848.610874-2-gpiccoli@igalia.com
Fixes: de6da1e8bcf0 ("panic: add an option to replay all the printk message in buffer")
Signed-off-by: Guilherme G. Piccoli 
Reviewed-by: Feng Tang 
Cc: Luis Chamberlain 
Cc: Kees Cook 
Cc: Iurii Zaikin 
Cc: Samuel Iglesias Gonsalvez 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

dt-bindings: pinctrl: pinctrl-microchip-sgpio: Fix example

2022-04-08T11:59:02+00:00

commit a6ff90f3fbd4d902aad8777f0329cef3a2768bde upstream.

The blamed commit adds support for irq, but the reqisters for irq are
outside of the memory size. They are at address 0x108. Therefore update
the memory size to cover all the registers used by the device.

Fixes: 01a9350bdd49fb ("dt-bindings: pinctrl: pinctrl-microchip-sgpio: Add irq support")
Signed-off-by: Horatiu Vultur 
Link: https://lore.kernel.org/r/20220204153535.465827-2-horatiu.vultur@microchip.com
Signed-off-by: Linus Walleij 
Signed-off-by: Greg Kroah-Hartman

dt-bindings: pinctrl: mt8195: fix bias-pull-{up,down} checks

2022-04-08T11:59:01+00:00

commit c76eeb14ec4e645a23ed8d627c7e38eca048c527 upstream.

When the constraints and description for bias-pull-{up,down} were added,
the constraints were not indented correctly, resulting in them being
parsed as part of the description. This effectively nullified their
purpose.

Move the constraints out of the description block, make each description
part of the same associative array as the enum its describing, and
reindent them correctly so they take effect.

Also add "type: boolean" to the list of valid values. This corresponds
to having bias-pull-{up,down} without any arguments.

Fixes: 91e7edceda96 ("dt-bindings: pinctrl: mt8195: change pull up/down description")
Signed-off-by: Chen-Yu Tsai 
Reviewed-by: Rob Herring 
Link: https://lore.kernel.org/r/20220202153528.707185-1-wenst@chromium.org
Signed-off-by: Linus Walleij 
Signed-off-by: Greg Kroah-Hartman

dt-bindings: memory: mtk-smi: Correct minItems to 2 for the gals clocks

2022-04-08T11:59:01+00:00

commit 996ebc0e332bfb3091395f9bd286d8349a57be62 upstream.

Mute the warning from "make dtbs_check":

larb@14017000: clock-names: ['apb', 'smi'] is too short
	arch/arm64/boot/dts/mediatek/mt8183-evb.dt.yaml
	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-burnet.dt.yaml
	...

larb@16010000: clock-names: ['apb', 'smi'] is too short
	arch/arm64/boot/dts/mediatek/mt8183-evb.dt.yaml
	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-burnet.dt.yaml

larb@17010000: clock-names: ['apb', 'smi'] is too short
	arch/arm64/boot/dts/mediatek/mt8183-evb.dt.yaml
	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-burnet.dt.yaml

If a platform's larb supports gals, there will be some larbs have one
more "gals" clock while the others still only need "apb"/"smi" clocks,
then the minItems for clocks and clock-names are 2.

Fixes: 27bb0e42855a ("dt-bindings: memory: mediatek: Convert SMI to DT schema")
Signed-off-by: Yong Wu 
Reviewed-by: AngeloGioacchino Del Regno 
Link: https://lore.kernel.org/r/20220113111057.29918-4-yong.wu@mediatek.com
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Greg Kroah-Hartman

dt-bindings: memory: mtk-smi: No need mediatek,larb-id for mt8167

2022-04-08T11:59:01+00:00

commit ddc3a324889686ec9b358de20fdeec0d2668c7a8 upstream.

Mute the warning from "make dtbs_check":

larb@14016000: 'mediatek,larb-id' is a required property
	arch/arm64/boot/dts/mediatek/mt8167-pumpkin.dt.yaml
larb@15001000: 'mediatek,larb-id' is a required property
	arch/arm64/boot/dts/mediatek/mt8167-pumpkin.dt.yaml
larb@16010000: 'mediatek,larb-id' is a required property
	arch/arm64/boot/dts/mediatek/mt8167-pumpkin.dt.yaml

As the description of mediatek,larb-id, the property is only
required when the larbid is not consecutive from its IOMMU point of view.

Also, from the description of mediatek,larbs in
Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml, all the larbs
must sort by the larb index.

In mt8167, there is only one IOMMU HW and three larbs. The drivers already
know its larb index from the mediatek,larbs property of IOMMU, thus no
need this property.

Fixes: 27bb0e42855a ("dt-bindings: memory: mediatek: Convert SMI to DT schema")
Signed-off-by: Yong Wu 
Acked-by: AngeloGioacchino Del Regno 
Link: https://lore.kernel.org/r/20220113111057.29918-3-yong.wu@mediatek.com
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Greg Kroah-Hartman

dt-bindings: memory: mtk-smi: Rename clock to clocks

2022-04-08T11:59:01+00:00

commit 5bf7fa48374eafe29dbb30448a0b0c083853583f upstream.

The property "clock" should be rename to "clocks", and delete the "items",
the minItems/maxItems should not be put under "items".

Fixes: 27bb0e42855a ("dt-bindings: memory: mediatek: Convert SMI to DT schema")
Signed-off-by: Yong Wu 
Acked-by: AngeloGioacchino Del Regno 
Link: https://lore.kernel.org/r/20220113111057.29918-2-yong.wu@mediatek.com
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Greg Kroah-Hartman

media: dt-bindings: media: hynix,hi846: add link-frequencies description

2022-04-08T11:59:01+00:00

commit a44b8e8c9b2615ea7cf2361cbca3c1dff8119c87 upstream.

link-frequencies is required but only mentioned in the example. Add
it to the description.

Fixes: f3ce7200ca18 ("media: dt-bindings: media: document SK Hynix Hi-846 MIPI CSI-2 8M pixel sensor")
Signed-off-by: Martin Kepplinger 
Reviewed-by: Laurent Pinchart 
Reviewed-by: Rob Herring 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

media: dt-binding: media: hynix,hi846: use $defs/port-base port description

2022-04-08T11:59:01+00:00

commit 6492eba4fafb5a9715ecf78b7155e88f8f88909a upstream.

This fixes "make dt_binding_check":

    Documentation/devicetree/bindings/media/i2c/hynix,hi846.example.dt.yaml:
camera@20: port:endpoint: Unevaluated properties are not allowed
('link-frequencies', 'data-lanes' were unexpected)
    From schema: Documentation/devicetree/bindings/media/i2c/hynix,hi846.yaml

[Sakari Ailus: Reword commit message]

Fixes: f3ce7200ca18 ("media: dt-bindings: media: document SK Hynix Hi-846 MIPI CSI-2 8M pixel sensor")
Reported-by: Geert Uytterhoeven 
Signed-off-by: Martin Kepplinger 
Reviewed-by: Laurent Pinchart 
Reviewed-by: Rob Herring 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

dt-bindings: spi: mxic: The interrupt property is not mandatory

2022-04-08T11:59:01+00:00

commit 90c204d3195a795f77f5bce767e311dd1c59ca17 upstream.

The interrupt property is not mandatory at all, this property should not
be part of the required properties list, so move it into the optional
properties list.

Fixes: 326e5c8d4a87 ("dt-binding: spi: Document Macronix controller bindings")
Signed-off-by: Miquel Raynal 
Reviewed-by: Rob Herring 
Reviewed-by: Mark Brown 
Link: https://lore.kernel.org/linux-mtd/20211216111654.238086-8-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman

dt-bindings: mtd: nand-controller: Fix a comment in the examples

2022-04-08T11:59:01+00:00

commit 0e7f1b557974ce297e5e4c9d4245720fbb489886 upstream.

The controller properties should be in the controller 'parent' node,
while properties in the children nodes are specific to the NAND
*chip*. This error was already present during the yaml conversion.

Fixes: 2d472aba15ff ("mtd: nand: document the NAND controller/NAND chip DT representation")
Signed-off-by: Miquel Raynal 
Acked-by: Rob Herring 
Link: https://lore.kernel.org/linux-mtd/20211216111654.238086-3-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman