- Cleanups of the hisilicon DTS to align with the dtschema including
serial, usb, amba-bus, memory, mmc, spi and syscon. All of them do not
have any functional effect except passing dtschema checks or dtc W=2
builds.
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Merge tag 'hisi-arm32-dt-for-5.11' of git://github.com/hisilicon/linux-hisi into arm/dt
ARM: DT: Hisilicon ARM32 DT updates for 5.11
- Cleanups of the hisilicon DTS to align with the dtschema including
serial, usb, amba-bus, memory, mmc, spi and syscon. All of them do not
have any functional effect except passing dtschema checks or dtc W=2
builds.
* tag 'hisi-arm32-dt-for-5.11' of git://github.com/hisilicon/linux-hisi:
ARM: dts: hisilicon: fix errors detected by syscon.yaml
ARM: dts: hisilicon: fix errors detected by spi-pl022.yaml
ARM: dts: hisilicon: fix errors detected by synopsys-dw-mshc.yaml
ARM: dts: hisilicon: fix errors detected by root-node.yaml
ARM: dts: hisilicon: fix errors detected by simple-bus.yaml
ARM: dts: hisilicon: fix errors detected by usb yaml
ARM: dts: hisilicon: fix errors detected by pl011.yaml
ARM: dts: hisilicon: fix errors detected by snps-dw-apb-uart.yaml
Link: https://lore.kernel.org/r/5FBDC347.4050102@hisilicon.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The DT binding for system controller is not allowed to contain only the
compatible string "syscon", the Hisilicon peripheral subsystem controller
should add compatible string "hisilicon,peri-subctrl". Otherwise, the
error "compatible: ['syscon'] is too short" will be reported.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
1. Change clock-names to "sspclk", "apb_pclk". Both of them use the same
clock.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Look at the clock-names schema defined in synopsys-dw-mshc.yaml:
clock-names:
items:
- const: biu
- const: ciu
The "biu" needs to be placed before the "ciu".
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Make the memory node name match the regex "^memory(@[0-9a-f]+)?$" which
is described in memory.yaml. Otherwise, it will be treated as root node,
and misreported by root-node.yaml.
Errors misreported by root-node.yaml:
/: memory: False schema does not allow {'device_type': ['memory'], 'reg':
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Change bus node name from "amba" to "amba-bus" to match
'^([a-z][a-z0-9\\-]+-bus|bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$'
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
1. Change node name to match '^usb(@.*)?'
These errors are detected by generic-ehci.yaml and generic-ohci.yaml.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
1. Change node name to match '^serial(@[0-9a-f,]+)*$'
2. Change clock-names to "uartclk", "apb_pclk". Both of them use the same
clock.
3. Change pinctrl-names to "default", "sleep".
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
1. Change node name to match '^serial(@[0-9a-f,]+)*$'
2. Change clock-names to "baudclk", "apb_pclk". Both of them use the same
clock.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
- Rename the DSI controllers to match the preferred
schema.
- Pull down the SDI2 feedback clock on the Skomer.
- Add proper supplies to the MaxToch touchscreen on
the Golden.
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Merge tag 'ux500-dts-for-v5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into arm/dt
Ux500 DTS updates for the v5.11 kernels:
- Rename the DSI controllers to match the preferred
schema.
- Pull down the SDI2 feedback clock on the Skomer.
- Add proper supplies to the MaxToch touchscreen on
the Golden.
* tag 'ux500-dts-for-v5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: dts: ux500-golden: Add proper supplies to touchscreen
ARM: dts: ux500: skomer: Pull down SDI2 FBCLK
ARM: dts: ux500: Rename DSI controller nodes
Link: https://lore.kernel.org/r/CACRpkdY_M4xj++QhRPqX6N3x9YmFNJkz70DnvBj7Ai-dOtCJSQ@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add Nuvoton NPCM730 SoC device tree.
The Nuvoton NPCN730 SoC is a part of the
Nuvoton NPCM7xx SoCs family.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Reviewed-by: Benjamin Fair <benjaminfair@google.com>
Link: https://lore.kernel.org/r/20201119080002.100342-1-tmaimon77@gmail.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Many cleanups of DTS and alignments to dtschema. Most of them do not
have any functional effect except passing dtschema checks or dtc W=2
builds.
2. Fix USB 3.0 ports on Odroid XU board: wrong roles assigned to two
ports, missing supply to the USB over-current and VBUS control pins
and finally missing pin configuration for these pins.
3. Switch Exynos5422 DMC driver to monitoring/polling mode, instead of
using interrupts.
4. Correct the usage of "opp-shared" properties which lead to disabling
the bus frequency and voltage scaling.
5. Enable Bluetooth on few Exynos4210 and Exynos4412 boards.
6. Enable dual-role USB on Odroid U3+ board.
7. Add Ethernet description in multiple Odroid DTS allowing also easy
MAC address filling by bootloader.
8. Add Ethernet to Artik 5 (Exynos3250) board.
9. Add interconnect properties to Exynos4412 to fix old Mixer issues.
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Merge tag 'samsung-dt-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt
Samsung DTS ARM changes for v5.11
1. Many cleanups of DTS and alignments to dtschema. Most of them do not
have any functional effect except passing dtschema checks or dtc W=2
builds.
2. Fix USB 3.0 ports on Odroid XU board: wrong roles assigned to two
ports, missing supply to the USB over-current and VBUS control pins
and finally missing pin configuration for these pins.
3. Switch Exynos5422 DMC driver to monitoring/polling mode, instead of
using interrupts.
4. Correct the usage of "opp-shared" properties which lead to disabling
the bus frequency and voltage scaling.
5. Enable Bluetooth on few Exynos4210 and Exynos4412 boards.
6. Enable dual-role USB on Odroid U3+ board.
7. Add Ethernet description in multiple Odroid DTS allowing also easy
MAC address filling by bootloader.
8. Add Ethernet to Artik 5 (Exynos3250) board.
9. Add interconnect properties to Exynos4412 to fix old Mixer issues.
* tag 'samsung-dt-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (36 commits)
ARM: dts: exynos: use hyphens in MFC reserved memory node names
ARM: dts: exynos: use hyphens in Exynos5 node names
ARM: dts: exynos: use generic name for max77693 motor in Midas
ARM: dts: exynos: use hyphens in Exynos4 node names
ARM: dts: exynos: use hyphens in Exynos3250 node names
ARM: dts: exynos: Add interconnects to Exynos4412 mixer
ARM: dts: exynos: Add interconnect properties to Exynos4412 bus nodes
ARM: dts: exynos: Add Ethernet to Artik 5 board
ARM: dts: exynos: Add a placeholder for a MAC address
ARM: dts: exynos: Add Ethernet interface description for Odroid X/X2
ARM: dts: exynos: Add Ethernet interface description for Odroid U3
ARM: dts: exynos: Add Ethernet interface description for Odroid XU
ARM: dts: exynos: Add Ethernet interface description for Odroid XU3 Lite
ARM: dts: exynos: Enable DWC2 dual-role support on OdroidU3+ boards
ARM: dts: s5pv210: adjust node names to DT spec
ARM: dts: exynos: adjust node names to DT spec in Exynos542x boards
ARM: dts: exynos: adjust node names to DT spec in Odroid XU
ARM: dts: exynos: adjust node names to DT spec in Exynos5250 boards
ARM: dts: exynos: remove redundant status=okay in Exynos4412 boards
ARM: dts: exynos: adjust node names to DT spec in Exynos4412 boards
...
Link: https://lore.kernel.org/r/20201113162211.10020-2-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Touch screen and OV5640 camera support for the iWave RainboW Qseven
board (G21D), and its camera expansion board,
- Support for the AISTARVISION MIPI Adapter V2.1 board connected to
HiHope RZ/G2 boards,
- SPI (MSIOF) support for the R-Car M3-W+ SoC,
- Digital Radio Interface (DRIF) support for the R-Car M3-N SoC,
- Initial support for the R-Car M3-W+ ULCB/Kingfisher board combo,
- Minor fixes and improvements.
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Merge tag 'renesas-arm-dt-for-v5.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt
Renesas ARM DT updates for v5.11
- Touch screen and OV5640 camera support for the iWave RainboW Qseven
board (G21D), and its camera expansion board,
- Support for the AISTARVISION MIPI Adapter V2.1 board connected to
HiHope RZ/G2 boards,
- SPI (MSIOF) support for the R-Car M3-W+ SoC,
- Digital Radio Interface (DRIF) support for the R-Car M3-N SoC,
- Initial support for the R-Car M3-W+ ULCB/Kingfisher board combo,
- Minor fixes and improvements.
* tag 'renesas-arm-dt-for-v5.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
arm64: dts: renesas: hihope-rev4: Add a comment explaining switch SW2404
arm64: dts: renesas: r8a77961: ulcb-kf: Initial device tree
arm64: dts: renesas: r8a77961: Add CAN{0,1} placeholder nodes
arm64: dts: renesas: beacon-renesom-baseboard: Move connector node out of hd3ss3220 device
arm64: dts: renesas: cat874: Move connector node out of hd3ss3220 device
arm64: dts: renesas: rzg2: Convert EtherAVB to explicit delay handling
arm64: dts: renesas: rcar-gen3: Convert EtherAVB to explicit delay handling
arm64: dts: renesas: r8a77965: Add DRIF support
arm64: dts: renesas: Add support for MIPI Adapter V2.1 connected to HiHope RZ/G2N
arm64: dts: renesas: Add support for MIPI Adapter V2.1 connected to HiHope RZ/G2M
arm64: dts: renesas: Add support for MIPI Adapter V2.1 connected to HiHope RZ/G2H
arm64: dts: renesas: aistarvision-mipi-adapter-2.1: Add parent macro for each sensor
arm64: dts: renesas: cat875: Remove rxc-skew-ps from ethernet-phy node
arm64: dts: renesas: hihope-rzg2-ex: Drop rxc-skew-ps from ethernet-phy node
ARM: dts: r8a7742-iwg21d-q7-dbcm-ca: Enable VIN instances
arm64: dts: renesas: r8a77961: Add MSIOF nodes
arm64: dts: renesas: Align GPIO hog names with dtschema
ARM: dts: r8a7742-iwg21d-q7: Add LCD support
Link: https://lore.kernel.org/r/20201113150854.3923885-3-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This sets up the Atmel maXTouch touchscreen to use proper
VDDA and VDD supplies as now supported by bindings and
driver.
Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: Nick Reitemeyer <nick.reitemeyer@web.de>
Cc: Nick Dyer <nick@shmanahar.org>
Link: https://lore.kernel.org/r/20201120124212.1086063-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use hyphens instead of underscores in the MFC reserved memory node names
which is expected by naming convention, multiple dtschema files and
pointed out by dtc W=2 builds.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201105184506.215648-5-krzk@kernel.org
Use hyphens instead of underscores in the Exynos5250 and Exynos542x node
names which is expected by naming convention, multiple dtschema files
and pointed out by dtc W=2 builds.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201105184506.215648-4-krzk@kernel.org
Use hyphens instead of underscores in the Exynos4210 and Exynos4412 node
names which is expected by naming convention, multiple dtschema files
and pointed out by dtc W=2 builds. Use also generic "ppmu" node name
for PPMU nodes to match Devicetree specification.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201105184506.215648-2-krzk@kernel.org
Use hyphens instead of underscores in the Exynos3250 node names which is
expected by naming convention, multiple dtschema files and pointed out
by dtc W=2 builds. Use also generic "ppmu" node name for PPMU nodes to
match Devicetree specification.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201105184506.215648-1-krzk@kernel.org
This patch adds an 'interconnects' property to Exynos4412 DTS in order to
declare the interconnect path used by the mixer. Please note that the
'interconnect-names' property is not needed when there is only one path in
'interconnects', in which case calling of_icc_get() with a NULL name simply
returns the right path.
Signed-off-by: Artur Świgoń <a.swigon@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/20201104103657.18007-7-s.nawrocki@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This patch adds the following properties for Exynos4412 interconnect
bus nodes:
- interconnects: to declare connections between nodes in order to
guarantee PM QoS requirements between nodes,
- #interconnect-cells: required by the interconnect framework,
- samsung,data-clk-ratio: which allows to specify minimum data clock
frequency corresponding to requested bandwidth for each bus.
Note that #interconnect-cells is always zero and node IDs are not
hardcoded anywhere.
Signed-off-by: Artur Świgoń <a.swigon@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/20201104103657.18007-6-s.nawrocki@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Switch SW2404 should be at position 1 so that the clock output from
CS2000 is connected to AUDIO_CLKB_A.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Link: https://lore.kernel.org/r/20201105121127.11830-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
With the same background and purpose as described in v4.20-rc1
commit 92bc66bfce ("arm64: dts: renesas: r8a77965: Add CAN{0,1}
placeholder nodes"), add can0 and can1 placeholder nodes.
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Link: https://lore.kernel.org/r/20201029133741.25721-1-erosca@de.adit-jv.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Move connector node out of hd3ss3220 device in order to comply with usb
connector bindings.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20200920134905.4370-7-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Move connector node out of hd3ss3220 device in order to comply with usb
connector bindings.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20200920134905.4370-6-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Some EtherAVB variants support internal clock delay configuration, which
can add larger delays than the delays that are typically supported by
the PHY (using an "rgmii-*id" PHY mode, and/or "[rt]xc-skew-ps"
properties).
Historically, the EtherAVB driver configured these delays based on the
"rgmii-*id" PHY mode. This was wrong, as these are meant solely for the
PHY, not for the MAC. Hence properties were introduced for explicit
configuration of these delays.
Convert the RZ/G2 DTS files from the old to the new scheme:
- Add default "rx-internal-delay-ps" and "tx-internal-delay-ps"
properties to the SoC .dtsi files, to be overridden by board files
where needed,
- Convert board files from "rgmii-*id" PHY modes to "rgmii", adding
the appropriate "rx-internal-delay-ps" and/or "tx-internal-delay-ps"
overrides.
Notes:
- RZ/G2E does not support TX internal delay handling.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200819134344.27813-8-geert+renesas@glider.be
Some EtherAVB variants support internal clock delay configuration, which
can add larger delays than the delays that are typically supported by
the PHY (using an "rgmii-*id" PHY mode, and/or "[rt]xc-skew-ps"
properties).
Historically, the EtherAVB driver configured these delays based on the
"rgmii-*id" PHY mode. This was wrong, as these are meant solely for the
PHY, not for the MAC. Hence properties were introduced for explicit
configuration of these delays.
Convert the R-Car Gen3 DTS files from the old to the new scheme:
- Add default "rx-internal-delay-ps" and "tx-internal-delay-ps"
properties to the SoC .dtsi files, to be overridden by board files
where needed,
- Convert board files from "rgmii-*id" PHY modes to "rgmii", adding
the appropriate "rx-internal-delay-ps" and/or "tx-internal-delay-ps"
overrides.
Notes:
- R-Car E3 and D3 do not support TX internal delay handling,
- On R-Car D3, TX internal delay handling must always be enabled,
hence this fixes a bug on Draak,
- On R-Car V3H, RX internal delay handling must always be enabled.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200819134344.27813-7-geert+renesas@glider.be
Here are some small Documentation fixes for 5.10-rc3 that were fallout
from the larger documentation update we did in 5.10-rc2. Nothing major
here at all, but all of these have been in linux-next and resolve build
warnings when building the documentation files.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core documentation fixes from Greg KH:
"Some small Documentation fixes that were fallout from the larger
documentation update we did in 5.10-rc2.
Nothing major here at all, but all of these have been in linux-next
and resolve build warnings when building the documentation files"
* tag 'driver-core-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Documentation: remove mic/index from misc-devices/index.rst
scripts: get_api.pl: Add sub-titles to ABI output
scripts: get_abi.pl: Don't let ABI files to create subtitles
docs: leds: index.rst: add a missing file
docs: ABI: sysfs-class-net: fix a typo
docs: ABI: sysfs-driver-dma-ioatdma: what starts with /sys
Here are a small number of small tty and serial fixes for some reported
problems for the tty core, vt code, and some serial drivers.
They include fixes for:
- a buggy and obsolete vt font ioctl removal
- 8250_mtk serial baudrate runtime warnings
- imx serial earlycon build configuration fix
- txx9 serial driver error path cleanup issues
- tty core fix in release_tty that can be triggered by trying to
bind an invalid serial port name to a speakup console device
Almost all of these have been in linux-next without any problems, the
only one that hasn't, just deletes code :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are a small number of small tty and serial fixes for some
reported problems for the tty core, vt code, and some serial drivers.
They include fixes for:
- a buggy and obsolete vt font ioctl removal
- 8250_mtk serial baudrate runtime warnings
- imx serial earlycon build configuration fix
- txx9 serial driver error path cleanup issues
- tty core fix in release_tty that can be triggered by trying to bind
an invalid serial port name to a speakup console device
Almost all of these have been in linux-next without any problems, the
only one that hasn't, just deletes code :)"
* tag 'tty-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
vt: Disable KD_FONT_OP_COPY
tty: fix crash in release_tty if tty->port is not set
serial: txx9: add missing platform_driver_unregister() on error in serial_txx9_init
tty: serial: imx: enable earlycon by default if IMX_SERIAL_CONSOLE is enabled
serial: 8250_mtk: Fix uart_get_baud_rate warning
Here are some small USB fixes and new device ids for 5.10-rc3
They include:
- USB gadget fixes for some reported issues
- Fixes for the every-troublesome apple fastcharge driver,
hopefully we finally have it right.
- More USB core quirks for odd devices
- USB serial driver fixes for some long-standing issues that
were recently found
- some new USB serial driver device ids
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes and new device ids:
- USB gadget fixes for some reported issues
- Fixes for the ever-troublesome apple fastcharge driver, hopefully
we finally have it right.
- More USB core quirks for odd devices
- USB serial driver fixes for some long-standing issues that were
recently found
- some new USB serial driver device ids
All have been in linux-next with no reported issues"
* tag 'usb-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: apple-mfi-fastcharge: fix reference leak in apple_mfi_fc_set_property
usb: mtu3: fix panic in mtu3_gadget_stop()
USB: serial: option: add Telit FN980 composition 0x1055
USB: serial: option: add LE910Cx compositions 0x1203, 0x1230, 0x1231
USB: serial: cyberjack: fix write-URB completion race
USB: Add NO_LPM quirk for Kingston flash drive
USB: serial: option: add Quectel EC200T module support
usb: raw-gadget: fix memory leak in gadget_setup
usb: dwc2: Avoid leaving the error_debugfs label unused
usb: dwc3: ep0: Fix delay status handling
usb: gadget: fsl: fix null pointer checking
usb: gadget: goku_udc: fix potential crashes in probe
usb: dwc3: pci: add support for the Intel Alder Lake-S
current->group_leader->exit_signal may change during copy_process() if
current->real_parent exits.
Move the assignment inside tasklist_lock to avoid the race.
Signed-off-by: Eddy Wu <eddy_wu@trendmicro.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It's buggy:
On Fri, Nov 06, 2020 at 10:30:08PM +0800, Minh Yuan wrote:
> We recently discovered a slab-out-of-bounds read in fbcon in the latest
> kernel ( v5.10-rc2 for now ). The root cause of this vulnerability is that
> "fbcon_do_set_font" did not handle "vc->vc_font.data" and
> "vc->vc_font.height" correctly, and the patch
> <https://lkml.org/lkml/2020/9/27/223> for VT_RESIZEX can't handle this
> issue.
>
> Specifically, we use KD_FONT_OP_SET to set a small font.data for tty6, and
> use KD_FONT_OP_SET again to set a large font.height for tty1. After that,
> we use KD_FONT_OP_COPY to assign tty6's vc_font.data to tty1's vc_font.data
> in "fbcon_do_set_font", while tty1 retains the original larger
> height. Obviously, this will cause an out-of-bounds read, because we can
> access a smaller vc_font.data with a larger vc_font.height.
Further there was only one user ever.
- Android's loadfont, busybox and console-tools only ever use OP_GET
and OP_SET
- fbset documentation only mentions the kernel cmdline font: option,
not anything else.
- systemd used OP_COPY before release 232 published in Nov 2016
Now unfortunately the crucial report seems to have gone down with
gmane, and the commit message doesn't say much. But the pull request
hints at OP_COPY being broken
https://github.com/systemd/systemd/pull/3651
So in other words, this never worked, and the only project which
foolishly every tried to use it, realized that rather quickly too.
Instead of trying to fix security issues here on dead code by adding
missing checks, fix the entire thing by removing the functionality.
Note that systemd code using the OP_COPY function ignored the return
value, so it doesn't matter what we're doing here really - just in
case a lone server somewhere happens to be extremely unlucky and
running an affected old version of systemd. The relevant code from
font_copy_to_all_vcs() in systemd was:
/* copy font from active VT, where the font was uploaded to */
cfo.op = KD_FONT_OP_COPY;
cfo.height = vcs.v_active-1; /* tty1 == index 0 */
(void) ioctl(vcfd, KDFONTOP, &cfo);
Note this just disables the ioctl, garbage collecting the now unused
callbacks is left for -next.
v2: Tetsuo found the old mail, which allowed me to find it on another
archive. Add the link too.
Acked-by: Peilin Ye <yepeilin.cs@gmail.com>
Reported-by: Minh Yuan <yuanmingbuaa@gmail.com>
References: https://lists.freedesktop.org/archives/systemd-devel/2016-June/036935.html
References: https://github.com/systemd/systemd/pull/3651
Cc: Greg KH <greg@kroah.com>
Cc: Peilin Ye <yepeilin.cs@gmail.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://lore.kernel.org/r/20201108153806.3140315-1-daniel.vetter@ffwll.ch
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Fix an uninitialized struct problem.
- Fix an iomap problem zeroing unwritten EOF blocks.
- Fix some clumsy error handling when writeback fails on
blocksize < pagesize filesystems.
- Fix a retry loop not resetting loop variables properly.
- Fix scrub flagging rtinherit inodes on a non-rt fs, since the kernel
actually does permit that combination.
- Fix excessive page cache flushing when unsharing part of a file.
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Merge tag 'xfs-5.10-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
- Fix an uninitialized struct problem
- Fix an iomap problem zeroing unwritten EOF blocks
- Fix some clumsy error handling when writeback fails on filesystems
with blocksize < pagesize
- Fix a retry loop not resetting loop variables properly
- Fix scrub flagging rtinherit inodes on a non-rt fs, since the kernel
actually does permit that combination
- Fix excessive page cache flushing when unsharing part of a file
* tag 'xfs-5.10-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: only flush the unshared range in xfs_reflink_unshare
xfs: fix scrub flagging rtinherit even if there is no rt device
xfs: fix missing CoW blocks writeback conversion retry
iomap: clean up writeback state logic on writepage error
iomap: support partial page discard on writeback block mapping failure
xfs: flush new eof page on truncate to avoid post-eof corruption
xfs: set xefi_discard when creating a deferred agfl free log intent item
Merge procfs splice read fixes from Christoph Hellwig:
"Greg reported a problem due to the fact that Android tests use procfs
files to test splice, which stopped working with the changes for
set_fs() removal.
This series adds read_iter support for seq_file, and uses those for
various proc files using seq_file to restore splice read support"
[ Side note: Christoph initially had a scripted "move everything over"
patch, which looks fine, but I personally would prefer us to actively
discourage splice() on random files. So this does just the minimal
basic core set of proc file op conversions.
For completeness, and in case people care, that script was
sed -i -e 's/\.proc_read\(\s*=\s*\)seq_read/\.proc_read_iter\1seq_read_iter/g'
but I'll wait and see if somebody has a strong argument for using
splice on random small /proc files before I'd run it on the whole
kernel. - Linus ]
* emailed patches from Christoph Hellwig <hch@lst.de>:
proc "seq files": switch to ->read_iter
proc "single files": switch to ->read_iter
proc/stat: switch to ->read_iter
proc/cpuinfo: switch to ->read_iter
proc: wire up generic_file_splice_read for iter ops
seq_file: add seq_read_iter
- Use SYM_FUNC_START_WEAK in the mem* ASM functions instead of a
combination of .weak and SYM_FUNC_START_LOCAL which makes LLVMs
integrated assembler upset.
- Correct the mitigation selection logic which prevented the related prctl
to work correctly.
- Make the UV5 hubless system work correctly by fixing up the malformed
table entries and adding the missing ones.
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Merge tag 'x86-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A set of x86 fixes:
- Use SYM_FUNC_START_WEAK in the mem* ASM functions instead of a
combination of .weak and SYM_FUNC_START_LOCAL which makes LLVMs
integrated assembler upset
- Correct the mitigation selection logic which prevented the related
prctl to work correctly
- Make the UV5 hubless system work correctly by fixing up the
malformed table entries and adding the missing ones"
* tag 'x86-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/uv: Recognize UV5 hubless system identifier
x86/platform/uv: Remove spaces from OEM IDs
x86/platform/uv: Fix missing OEM_TABLE_ID
x86/speculation: Allow IBPB to be conditionally enabled on CPUs with always-on STIBP
x86/lib: Change .weak to SYM_FUNC_START_WEAK for arch/x86/lib/mem*_64.S
parser.
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Merge tag 'perf-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Thomas Gleixner:
"A single fix for the perf core plugging a memory leak in the address
filter parser"
* tag 'perf-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fix a memory leak in perf_event_parse_addr_filter()
underlying RT mutex was not handled correctly and triggering a BUG()
instead of treating it as another variant of retry condition.
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Merge tag 'locking-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex fix from Thomas Gleixner:
"A single fix for the futex code where an intermediate state in the
underlying RT mutex was not handled correctly and triggering a BUG()
instead of treating it as another variant of retry condition"
* tag 'locking-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Handle transient "ownerless" rtmutex state correctly
- Fix the fallout of the IPI as interrupt conversion in Kconfig and the
BCM2836 interrupt chip driver/
- Fixes for interrupt affinity setting and the handling of hierarchical
irq domains in the SiFive PLIC driver.
- Make the unmapped event handling in the TI SCI driver work correctly.
- A few minor fixes and cleanups in various chip drivers and Kconfig.
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Merge tag 'irq-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of fixes for interrupt chip drivers:
- Fix the fallout of the IPI as interrupt conversion in Kconfig and
the BCM2836 interrupt chip driver
- Fixes for interrupt affinity setting and the handling of
hierarchical irq domains in the SiFive PLIC driver
- Make the unmapped event handling in the TI SCI driver work
correctly
- A few minor fixes and cleanups in various chip drivers and Kconfig"
* tag 'irq-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
dt-bindings: irqchip: ti, sci-inta: Fix diagram indentation for unmapped events
irqchip/ti-sci-inta: Add support for unmapped event handling
dt-bindings: irqchip: ti, sci-inta: Update for unmapped event handling
irqchip/renesas-intc-irqpin: Merge irlm_bit and needs_irlm
irqchip/sifive-plic: Fix chip_data access within a hierarchy
irqchip/sifive-plic: Fix broken irq_set_affinity() callback
irqchip/stm32-exti: Add all LP timer exti direct events support
irqchip/bcm2836: Fix missing __init annotation
irqchip/mips: Drop selection of IRQ_DOMAIN_HIERARCHY
irqchip/mst: Make mst_intc_of_init static
irqchip/mst: MST_IRQ should depend on ARCH_MEDIATEK or ARCH_MSTARV7
genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY
that the lockdep interrupt state needs not to be established before calling
the RCU check.
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Merge tag 'core-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull entry code fix from Thomas Gleixner:
"A single fix for the generic entry code to correct the wrong
assumption that the lockdep interrupt state needs not to be
established before calling the RCU check"
* tag 'core-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Fix the incorrect ordering of lockdep and RCU check
Fix miscompilation with GCC 4.9 by using asm_goto_volatile for put_user().
A fix for an RCU splat at boot caused by a recent lockdep change.
A fix for a possible deadlock in our EEH debugfs code.
Several fixes for handling of _PAGE_ACCESSED on 32-bit platforms.
A build fix when CONFIG_NUMA=n.
Thanks to:
Andreas Schwab,
Christophe Leroy,
Oliver O'Halloran,
Qian Cai,
Scott Cheloha.
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Merge tag 'powerpc-5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- fix miscompilation with GCC 4.9 by using asm_goto_volatile for put_user()
- fix for an RCU splat at boot caused by a recent lockdep change
- fix for a possible deadlock in our EEH debugfs code
- several fixes for handling of _PAGE_ACCESSED on 32-bit platforms
- build fix when CONFIG_NUMA=n
Thanks to Andreas Schwab, Christophe Leroy, Oliver O'Halloran, Qian Cai,
and Scott Cheloha.
* tag 'powerpc-5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/numa: Fix build when CONFIG_NUMA=n
powerpc/8xx: Manage _PAGE_ACCESSED through APG bits in L1 entry
powerpc/8xx: Always fault when _PAGE_ACCESSED is not set
powerpc/40x: Always fault when _PAGE_ACCESSED is not set
powerpc/603: Always fault when _PAGE_ACCESSED is not set
powerpc: Use asm_goto_volatile for put_user()
powerpc/smp: Call rcu_cpu_starting() earlier
powerpc/eeh_cache: Fix a possible debugfs deadlock
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Merge tag 'io_uring-5.10-2020-11-07' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A set of fixes for io_uring:
- SQPOLL cancelation fixes
- Two fixes for the io_identity COW
- Cancelation overflow fix (Pavel)
- Drain request cancelation fix (Pavel)
- Link timeout race fix (Pavel)"
* tag 'io_uring-5.10-2020-11-07' of git://git.kernel.dk/linux-block:
io_uring: fix link lookup racing with link timeout
io_uring: use correct pointer for io_uring_show_cred()
io_uring: don't forget to task-cancel drained reqs
io_uring: fix overflowed cancel w/ linked ->files
io_uring: drop req/tctx io_identity separately
io_uring: ensure consistent view of original task ->mm from SQPOLL
io_uring: properly handle SQPOLL request cancelations
io-wq: cancel request if it's asking for files and we don't have them
Gratian managed to trigger the BUG_ON(!newowner) in fixup_pi_state_owner().
This is one possible chain of events leading to this:
Task Prio Operation
T1 120 lock(F)
T2 120 lock(F) -> blocks (top waiter)
T3 50 (RT) lock(F) -> boosts T1 and blocks (new top waiter)
XX timeout/ -> wakes T2
signal
T1 50 unlock(F) -> wakes T3 (rtmutex->owner == NULL, waiter bit is set)
T2 120 cleanup -> try_to_take_mutex() fails because T3 is the top waiter
and the lower priority T2 cannot steal the lock.
-> fixup_pi_state_owner() sees newowner == NULL -> BUG_ON()
The comment states that this is invalid and rt_mutex_real_owner() must
return a non NULL owner when the trylock failed, but in case of a queued
and woken up waiter rt_mutex_real_owner() == NULL is a valid transient
state. The higher priority waiter has simply not yet managed to take over
the rtmutex.
The BUG_ON() is therefore wrong and this is just another retry condition in
fixup_pi_state_owner().
Drop the locks, so that T3 can make progress, and then try the fixup again.
Gratian provided a great analysis, traces and a reproducer. The analysis is
to the point, but it confused the hell out of that tglx dude who had to
page in all the futex horrors again. Condensed version is above.
[ tglx: Wrote comment and changelog ]
Fixes: c1e2f0eaf0 ("futex: Avoid violating the 10th rule of futex")
Reported-by: Gratian Crisan <gratian.crisan@ni.com>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87a6w6x7bb.fsf@ni.com
Link: https://lore.kernel.org/r/87sg9pkvf7.fsf@nanos.tec.linutronix.de
Pull i2c fixes from Wolfram Sang:
"Driver bugfixes for I2C.
Most of them are for the new mlxbf driver which got more exposure
after rc1. The sh_mobile patch should already have reached you during
the merge window, but I accidently dropped it. However, since it fixes
a problem with rebooting, it is still fine for rc3"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: designware: slave should do WRITE_REQUESTED before WRITE_RECEIVED
i2c: designware: call i2c_dw_read_clear_intrbits_slave() once
i2c: mlxbf: I2C_MLXBF should depend on MELLANOX_PLATFORM
i2c: mlxbf: Update author and maintainer email info
i2c: mlxbf: Update reference clock frequency
i2c: mlxbf: Remove unecessary wrapper functions
i2c: mlxbf: Fix resrticted cast warning of sparse
i2c: mlxbf: Add CONFIG_ACPI to guard ACPI function call
i2c: sh_mobile: implement atomic transfers
i2c: mediatek: move dma reset before i2c reset
* An SPDX comment style fix.
* A fix to ignore memory that is unusable.
* A fix to avoid setting a kernel text offset for the !MMU kernels, where
skipping the first page of memory is both unnecessary and costly.
* A fix to avoid passing the flag bits in satp to pfn_to_virt().
* A fix to __put_kernel_nofault, where we had the arguments to
__put_user_nocheck reversed.
* A workaround for a bug in the FU540 to avoid triggering PMP issues during
early boot.
* A change to how we pull symbols out of the vDSO. The old mechanism was
removed from binutils-2.35 (and has been backported to Debian's 2.34).
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Merge tag 'riscv-for-linus-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- SPDX comment style fix
- ignore memory that is unusable
- avoid setting a kernel text offset for the !MMU kernels, where
skipping the first page of memory is both unnecessary and costly
- avoid passing the flag bits in satp to pfn_to_virt()
- fix __put_kernel_nofault, where we had the arguments to
__put_user_nocheck reversed
- workaround for a bug in the FU540 to avoid triggering PMP issues
during early boot
- change to how we pull symbols out of the vDSO. The old mechanism was
removed from binutils-2.35 (and has been backported to Debian's 2.34)
* tag 'riscv-for-linus-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: Fix the VDSO symbol generaton for binutils-2.35+
RISC-V: Use non-PGD mappings for early DTB access
riscv: uaccess: fix __put_kernel_nofault()
riscv: fix pfn_to_virt err in do_page_fault().
riscv: Set text_offset correctly for M-Mode
RISC-V: Remove any memblock representing unusable memory area
risc-v: kernel: ftrace: Fixes improper SPDX comment style
