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Modules registering driver with register_virtio_driver() might forget to
set .owner field. i2c-virtio.c for example has it missing. The field
is used by some other kernel parts for reference counting
(try_module_get()), so it is expected that drivers will set it.
Solve the problem by moving this task away from the drivers to the core
virtio code, just like we did for platform_driver in
commit 9447057eaff8 ("platform_device: use a macro instead of
platform_driver_register").
Fixes: 3cfc88380413 ("i2c: virtio: add a virtio i2c frontend driver")
Cc: "Jie Deng" <jie.deng@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-Id: <20240331-module-owner-virtio-v2-1-98f04bfaf46a@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH:
"Here is the big set of TTY/Serial driver updates and cleanups for
6.9-rc1. Included in here are:
- more tty cleanups from Jiri
- loads of 8250 driver cleanups from Andy
- max310x driver updates
- samsung serial driver updates
- uart_prepare_sysrq_char() updates for many drivers
- platform driver remove callback void cleanups
- stm32 driver updates
- other small tty/serial driver updates
All of these have been in linux-next for a long time with no reported
issues"
* tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits)
dt-bindings: serial: stm32: add power-domains property
serial: 8250_dw: Replace ACPI device check by a quirk
serial: Lock console when calling into driver before registration
serial: 8250_uniphier: Switch to use uart_read_port_properties()
serial: 8250_tegra: Switch to use uart_read_port_properties()
serial: 8250_pxa: Switch to use uart_read_port_properties()
serial: 8250_omap: Switch to use uart_read_port_properties()
serial: 8250_of: Switch to use uart_read_port_properties()
serial: 8250_lpc18xx: Switch to use uart_read_port_properties()
serial: 8250_ingenic: Switch to use uart_read_port_properties()
serial: 8250_dw: Switch to use uart_read_port_properties()
serial: 8250_bcm7271: Switch to use uart_read_port_properties()
serial: 8250_bcm2835aux: Switch to use uart_read_port_properties()
serial: 8250_aspeed_vuart: Switch to use uart_read_port_properties()
serial: port: Introduce a common helper to read properties
serial: core: Add UPIO_UNKNOWN constant for unknown port type
serial: core: Move struct uart_port::quirks closer to possible values
serial: sh-sci: Call sci_serial_{in,out}() directly
serial: core: only stop transmit when HW fifo is empty
serial: pch: Use uart_prepare_sysrq_char().
...
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Now, that the console kernel-doc is in better shape, include it in the
tty/ docs.
It's not supernice, but it is what it is. At least for the beginning.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Tested-by: Helge Deller <deller@gmx.de> # parisc STI console
Link: https://lore.kernel.org/r/20240122110401.7289-48-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt changes for 6.9-rc1. Lots
of tiny changes and forward progress to support new hardware and
better support for existing devices. Included in here are:
- Thunderbolt (i.e. USB4) updates for newer hardware and uses as more
people start to use the hardware
- default USB authentication mode Kconfig and documentation update to
make it more obvious what is going on
- USB typec updates and enhancements
- usual dwc3 driver updates
- usual xhci driver updates
- function USB (i.e. gadget) driver updates and additions
- new device ids for lots of drivers
- loads of other small updates, full details in the shortlog
All of these, including a "last minute regression fix" have been in
linux-next with no reported issues"
* tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (185 commits)
usb: usb-acpi: Fix oops due to freeing uninitialized pld pointer
usb: gadget: net2272: Use irqflags in the call to net2272_probe_fin
usb: gadget: tegra-xudc: Fix USB3 PHY retrieval logic
phy: tegra: xusb: Add API to retrieve the port number of phy
USB: gadget: pxa27x_udc: Remove unused of_gpio.h
usb: gadget/snps_udc_plat: Remove unused of_gpio.h
usb: ohci-pxa27x: Remove unused of_gpio.h
usb: sl811-hcd: only defined function checkdone if QUIRK2 is defined
usb: Clarify expected behavior of dev_bin_attrs_are_visible()
xhci: Allow RPM on the USB controller (1022:43f7) by default
usb: isp1760: remove SLAB_MEM_SPREAD flag usage
usb: misc: onboard_hub: use pointer consistently in the probe function
usb: gadget: fsl: Increase size of name buffer for endpoints
usb: gadget: fsl: Add of device table to enable module autoloading
usb: typec: tcpm: add support to set tcpc connector orientatition
usb: typec: tcpci: add generic tcpci fallback compatible
dt-bindings: usb: typec-tcpci: add tcpci fallback binding
usb: gadget: fsl-udc: Replace custom log wrappers by dev_{err,warn,dbg,vdbg}
usb: core: Set connect_type of ports based on DT node
dt-bindings: usb: Add downstream facing ports to realtek binding
...
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A call to usb_set_interface() crashes if the device is deallocated
concurrently, such as due to physical removal or a serious IO error.
It could also interfere with other drivers using the device if the
current driver is unbound before the call is finished.
Document the need to delay driver unbinding until this call returns,
which solves both issues.
Document the same regarding usb_clear_halt(), which is equally known
to be routinely called by drivers.
Explicitly mention finishing pending operations in the documentation
of the driver disconnect callback.
Signed-off-by: Michal Pecio <michal.pecio@gmail.com>
Link: https://lore.kernel.org/r/20240218092515.7635ff8c@foxbook
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire updates from Vinod Koul:
- Constify sdw_bus and sdw_master_type objects
- use of rtd helper for better code
- intel aux device remove redundant assignment
* tag 'soundwire-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: Use snd_soc_substream_to_rtd() to obtain rtd
soundwire: constify the struct device_type usage
soundwire: bus_type: make sdw_bus_type const
soundwire: intel_auxdevice: remove redundant assignment to variable link_flags
soundwire: stream: add missing const to Documentation
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Commit 21f4c443731f ("soundwire: stream: constify sdw_port_config when
adding devices") added const to sdw_port_config argument, but forgot
documentation.
Fixes: 21f4c443731f ("soundwire: stream: constify sdw_port_config when adding devices")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240117160639.1327266-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- DVB budget legacy API was finally documented. It took only 20+ years
to get some documentation about it...
- hantro driver has gained support for STM32MP25 VDEC/VENC
- rkisp1 has gained support for i.MX8MP
- atomisp got rid of two items from its todo list. Still 5 items
pending for moving it out of staging
- lots of driver fixes, cleanups and improvements
* tag 'media/v6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (252 commits)
media: rcar-isp: Disallow unbind of devices
media: usbtv: Remove useless locks in usbtv_video_free()
media: mediatek: vcodec: avoid -Wcast-function-type-strict warning
media: ttpci: fix two memleaks in budget_av_attach
media: go7007: fix a memleak in go7007_load_encoder
media: dvb-frontends: avoid stack overflow warnings with clang
media: pvrusb2: fix uaf in pvr2_context_set_notify
media: usb: s2255: Refactor s2255_get_fx2fw
media: ti: j721e-csi2rx: Convert to platform remove callback returning void
media: stm32-dcmipp: Convert to platform remove callback returning void
media: nxp: imx8-isi: Convert to platform remove callback returning void
media: nuvoton: Convert to platform remove callback returning void
media: chips-media: wave5: Convert to platform remove callback returning void
media: chips-media: wave5: Remove unnecessary semicolons
media: i2c: imx290: Fix IMX920 typo
media: platform: replace of_graph_get_next_endpoint()
media: i2c: replace of_graph_get_next_endpoint()
media: ivsc: csi: Make use of sub-device state
media: ivsc: csi: Swap SINK and SOURCE pads
media: ipu-bridge: Serialise calls to IPU bridge init
...
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This patch resolves a spelling error in the documentation.
It is submitted as part of my application to the "Linux Kernel Bug
Fixing Spring Unpaid 2024" mentorship program of the Linux Kernel
Foundation.
Signed-off-by: Vincenzo Mezzela <vincenzo.mezzela@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Drop duplicated UAPI specific portions of the CCS (kernel) documentation
and fix a spelling error in UAPI documentation previously fixed in driver
documentation.
Also add references both ways.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Consolidate interrupt related code in irq.c (Ilpo Järvinen)
- Reduce kernel size by replacing sysfs resource macros with
functions (Ilpo Järvinen)
- Reduce kernel size by compiling sysfs support only when
CONFIG_SYSFS=y (Lukas Wunner)
- Avoid using Extended Tags on 3ware-9650SE Root Port to work around
an apparent hardware defect (Jörg Wedekind)
Resource management:
- Fix an MMIO mapping leak in pci_iounmap() (Philipp Stanner)
- Move pci_iomap.c and other PCI-specific devres code to drivers/pci
(Philipp Stanner)
- Consolidate PCI devres code in devres.c (Philipp Stanner)
Power management:
- Avoid D3cold on Asus B1400 PCI-NVMe bridge, where firmware doesn't
know how to return correctly to D0, and remove previous quirk that
wasn't as specific (Daniel Drake)
- Allow runtime PM when the driver enables it but doesn't need any
runtime PM callbacks (Raag Jadav)
- Drain runtime-idle callbacks before driver removal to avoid races
between .remove() and .runtime_idle(), which caused intermittent
page faults when the rtsx .runtime_idle() accessed registers that
its .remove() had already unmapped (Rafael J. Wysocki)
Virtualization:
- Avoid Secondary Bus Reset on LSI FW643 so it can be assigned to VMs
with VFIO, e.g., for professional audio software on many Apple
machines, at the cost of leaking state between VMs (Edmund Raile)
Error handling:
- Print all logged TLP Prefixes, not just the first, after AER or DPC
errors (Ilpo Järvinen)
- Quirk the DPC PIO log size for Intel Raptor Lake Root Ports, which
still don't advertise a legal size (Paul Menzel)
- Ignore expected DPC Surprise Down errors on hot removal (Smita
Koralahalli)
- Block runtime suspend while handling AER errors to avoid races that
prevent the device form being resumed from D3hot (Stanislaw
Gruszka)
Peer-to-peer DMA:
- Use atomic XA allocation in RCU read section (Christophe JAILLET)
ASPM:
- Collect bits of ASPM-related code that we need even without
CONFIG_PCIEASPM into aspm.c (David E. Box)
- Save/restore L1 PM Substates config for suspend/resume (David E.
Box)
- Update save_save when ASPM config is changed, so a .slot_reset()
during error recovery restores the changed config, not the
.probe()-time config (Vidya Sagar)
Endpoint framework:
- Refactor and improve pci_epf_alloc_space() API (Niklas Cassel)
- Clean up endpoint BAR descriptions (Niklas Cassel)
- Fix ntb_register_device() name leak in error path (Yang Yingliang)
- Return actual error code for pci_vntb_probe() failure (Yang
Yingliang)
Broadcom STB PCIe controller driver:
- Fix MDIO write polling, which previously never waited for
completion (Jonathan Bell)
Cadence PCIe endpoint driver:
- Clear the ARI "Next Function Number" of last function (Jasko-EXT
Wojciech)
Freescale i.MX6 PCIe controller driver:
- Simplify by replacing switch statements with function pointers for
different hardware variants (Frank Li)
- Simplify by using clk_bulk*() API (Frank Li)
- Remove redundant DT clock and reg/reg-name details (Frank Li)
- Add i.MX95 DT and driver support for both Root Complex and Endpoint
mode (Frank Li)
Microsoft Hyper-V host bridge driver:
- Reduce memory usage by limiting ring buffer size to 16KB instead of
4 pages (Michael Kelley)
Qualcomm PCIe controller driver:
- Add X1E80100 DT and driver support (Abel Vesa)
- Add DT 'required-opps' for SoCs that require a minimum performance
level (Johan Hovold)
- Make DT 'msi-map-mask' optional, depending on how MSI interrupts
are mapped (Johan Hovold)
- Disable ASPM L0s for sc8280xp, sa8540p and sa8295p because the PHY
configuration isn't tuned correctly for L0s (Johan Hovold)
- Split dt-binding qcom,pcie.yaml into qcom,pcie-common.yaml and
separate files for SA8775p, SC7280, SC8180X, SC8280XP, SM8150,
SM8250, SM8350, SM8450, SM8550 for easier reviewing (Krzysztof
Kozlowski)
- Enable BDF to SID translation by disabling bypass mode (Manivannan
Sadhasivam)
- Add endpoint MHI support for Snapdragon SA8775P SoC (Mrinmay
Sarkar)
Synopsys DesignWare PCIe controller driver:
- Allocate 64-bit MSI address if no 32-bit address is available (Ajay
Agarwal)
- Fix endpoint Resizable BAR to actually advertise the required 1MB
size (Niklas Cassel)
MicroSemi Switchtec management driver:
- Release resources if the .probe() fails (Christophe JAILLET)
Miscellaneous:
- Make pcie_port_bus_type const (Ricardo B. Marliere)"
* tag 'pci-v6.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (77 commits)
PCI/ASPM: Update save_state when configuration changes
PCI/ASPM: Disable L1 before configuring L1 Substates
PCI/ASPM: Call pci_save_ltr_state() from pci_save_pcie_state()
PCI/ASPM: Save L1 PM Substates Capability for suspend/resume
PCI: hv: Fix ring buffer size calculation
PCI: dwc: endpoint: Fix advertised resizable BAR size
PCI: cadence: Clear the ARI Capability Next Function Number of the last function
PCI: dwc: Strengthen the MSI address allocation logic
PCI: brcmstb: Fix broken brcm_pcie_mdio_write() polling
PCI: qcom: Add X1E80100 PCIe support
dt-bindings: PCI: qcom: Document the X1E80100 PCIe Controller
PCI: qcom: Enable BDF to SID translation properly
PCI/AER: Generalize TLP Header Log reading
PCI/AER: Use explicit register size for PCI_ERR_CAP
PCI: qcom: Disable ASPM L0s for sc8280xp, sa8540p and sa8295p
dt-bindings: PCI: qcom: Do not require 'msi-map-mask'
dt-bindings: PCI: qcom: Allow 'required-opps'
PCI/AER: Block runtime suspend when handling errors
PCI/ASPM: Move pci_save_ltr_state() to aspm.c
PCI/ASPM: Always build aspm.c
...
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The pcim_*() functions in lib/devres.c are guarded by an #ifdef CONFIG_PCI
and, thus, don't belong to this file. They are only ever used for PCI and
are not generic infrastructure.
Move all pcim_*() functions in lib/devres.c to drivers/pci/devres.c.
Adjust the Makefile.
Add drivers/pci/devres.c to Documentation.
Link: https://lore.kernel.org/r/20240131090023.12331-4-pstanner@redhat.com
Suggested-by: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The entirety of pci_iomap.c is guarded by an #ifdef CONFIG_PCI. It,
consequently, does not belong to lib/ because it is not generic
infrastructure.
Move pci_iomap.c to drivers/pci/ and implement the necessary changes to
Makefiles and Kconfigs.
Update MAINTAINERS file.
Update Documentation.
Link: https://lore.kernel.org/r/20240131090023.12331-3-pstanner@redhat.com
[bhelgaas: squash in https://lore.kernel.org/r/20240212150934.24559-1-pstanner@redhat.com]
Suggested-by: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"The biggest feature is the locking overhaul. Up until now the
synchronization in the GPIO subsystem was broken. There was a single
spinlock "protecting" multiple data structures but doing it wrong (as
evidenced by several places where it would be released when a sleeping
function was called and then reacquired without checking the protected
state).
We tried to use an RW semaphore before but the main issue with GPIO is
that we have drivers implementing the interfaces in both sleeping and
non-sleeping ways as well as user-facing interfaces that can be called
both from process as well as atomic contexts. Both ends converge in
the same code paths that can use neither spinlocks nor mutexes. The
only reasonable way out is to use SRCU and go mostly lockless. To that
end: we add several SRCU structs in relevant places and use them to
assure consistency between API calls together with atomic reads and
writes of GPIO descriptor flags where it makes sense.
This code has spent several weeks in next and has received several
fixes in the first week or two after which it stabilized nicely. The
GPIO subsystem is now resilient to providers being suddenly unbound.
We managed to also remove the existing character device RW semaphore
and the obsolete global spinlock.
Other than the locking rework we have one new driver (for Chromebook
EC), much appreciated documentation improvements from Kent and the
regular driver improvements, DT-bindings updates and GPIOLIB core
tweaks.
Serialization rework:
- use SRCU to serialize access to the global GPIO device list, to
GPIO device structs themselves and to GPIO descriptors
- make the GPIO subsystem resilient to the GPIO providers being
unbound while the API calls are in progress
- don't dereference the SRCU-protected chip pointer if the
information we need can be obtained from the GPIO device structure
- move some of the information contained in struct gpio_chip to
struct gpio_device to further reduce the need to dereference the
former
- pass the GPIO device struct instead of the GPIO chip to sysfs
callback to, again, reduce the need for accessing the latter
- get GPIO descriptors from the GPIO device, not from the chip for
the same reason
- allow for mostly lockless operation of the GPIO driver API: assure
consistency with SRCU and atomic operations
- remove the global GPIO spinlock
- remove the character device RW semaphore
Core GPIOLIB:
- constify pointers in GPIO API where applicable
- unify the GPIO counting APIs for ACPI and OF
- provide a macro for iterating over all GPIOs, not only the ones
that are requested
- remove leftover typedefs
- pass the consumer device to GPIO core in
devm_fwnode_gpiod_get_index() for improved logging
- constify the GPIO bus type
- don't warn about removing GPIO chips with descriptors still held by
users as we can now handle this situation gracefully
- remove unused logging helpers
- unexport functions that are only used internally in the GPIO
subsystem
- set the device type (assign the relevant struct device_type) for
GPIO devices
New drivers:
- add the ChromeOS EC GPIO driver
Driver improvements:
- allow building gpio-vf610 with COMPILE_TEST as well as disabling it
in menuconfig (before it was always built for i.MX cofigs)
- count the number of EICs using the device properties instead of
hard-coding it in gpio-eic-sprd
- improve the device naming, extend the debugfs output and add
lockdep asserts to gpio-sim
DT bindings:
- document the 'label' property for gpio-pca9570
- convert aspeed,ast2400-gpio bindings to DT schema
- disallow unevaluated properties for gpio-mvebu
- document a new model in renesas,rcar-gpio
Documentation:
- improve the character device kerneldocs in user-space headers
- add proper documentation for the character device uAPI (both v1 and v2)
- move the sysfs and gpio-mockup docs into the "obsolete" section
- improve naming consistency for GPIO terms
- clarify the line values description for sysfs
- minor docs improvements
- improve the driver API contract for setting GPIO direction
- mark unsafe APIs as deprecated in kerneldocs and suggest
replacements
Other:
- remove an obsolete test from selftests"
* tag 'gpio-updates-for-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (79 commits)
gpio: sysfs: repair export returning -EPERM on 1st attempt
selftest: gpio: remove obsolete gpio-mockup test
gpiolib: Deduplicate cleanup for-loop in gpiochip_add_data_with_key()
dt-bindings: gpio: aspeed,ast2400-gpio: Convert to DT schema
gpio: acpi: Make acpi_gpio_count() take firmware node as a parameter
gpio: of: Make of_gpio_get_count() take firmware node as a parameter
gpiolib: Pass consumer device through to core in devm_fwnode_gpiod_get_index()
gpio: sim: use for_each_hwgpio()
gpio: provide for_each_hwgpio()
gpio: don't warn about removing GPIO chips with active users anymore
gpio: sim: delimit the fwnode name with a ":" when generating labels
gpio: sim: add lockdep asserts
gpio: Add ChromeOS EC GPIO driver
gpio: constify of_phandle_args in of_find_gpio_device_by_xlate()
gpio: fix memory leak in gpiod_request_commit()
gpio: constify opaque pointer "data" in gpio_device_find()
gpio: cdev: fix a NULL-pointer dereference with DEBUG enabled
gpio: uapi: clarify default_values being logical
gpio: sysfs: fix inverted pointer logic
gpio: don't let lockdep complain about inherently dangerous RCU usage
...
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Consistently use active/inactive to describe logical line values, rather
than high/low, which is used for physical values, or asserted/de-asserted
which is awkward.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
[Bartosz: tweaked the commit subject to use imperative mood]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"This release sees some exciting changes from David Lechner which
implements some optimisations that have been talked about for a long
time which allows client drivers to pre-prepare SPI messages for
repeated or low latency use. This lets us move work out of latency
sensitive paths and avoid repeating work for frequently performed
operations. As well as being useful in itself this will also be used
in future to allow controllers to directly trigger SPI operations (eg,
from interrupts).
Otherwise this release has mostly been focused on cleanups, plus a
couple of new devices:
- Support for pre-optimising messages
- A big set of updates from Uwe Kleine-König moving drivers to use
APIs with more modern terminology for controllers
- Major overhaul of the s3c64xx driver
- Support for Google GS101 and Samsung Exynos850"
* tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (122 commits)
spi: Introduce SPI_INVALID_CS and is_valid_cs()
spi: Fix types of the last chip select storage variables
spi: Consistently use BIT for cs_index_mask
spi: Exctract spi_dev_check_cs() helper
spi: Exctract spi_set_all_cs_unused() helper
spi: s3c64xx: switch exynos850 to new port config data
spi: s3c64xx: switch gs101 to new port config data
spi: s3c64xx: deprecate fifo_lvl_mask, rx_lvl_offset and port_id
spi: s3c64xx: get rid of the OF alias ID dependency
spi: s3c64xx: introduce s3c64xx_spi_set_port_id()
spi: s3c64xx: let the SPI core determine the bus number
spi: s3c64xx: allow FIFO depth to be determined from the compatible
spi: s3c64xx: retrieve the FIFO depth from the device tree
spi: s3c64xx: determine the fifo depth only once
spi: s3c64xx: allow full FIFO masks
spi: s3c64xx: define a magic value
spi: dt-bindings: introduce FIFO depth properties
spi: axi-spi-engine: use struct_size() macro
spi: axi-spi-engine: use __counted_by() attribute
spi: axi-spi-engine: remove p from struct spi_engine_message_state
...
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Now that all in-tree users followed the rename, the compat stuff can go
away. This completes the renaming started with commit 8caab75fd2c2
("spi: Generalize SPI "master" to "controller"")
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/ad1d949325b61a4682e8d6ecf9d05da751e6a99f.1707324794.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm updates from Uwe Kleine-König:
"This contains the usual amount of driver and device tree changes.
Additionally there is a big rework of how pwm lowlevel drivers are
registered to prepare adding character device support.
Thanks to Dharma Balasubiramani, Dong Aisheng, Duje Mihanović, Jerome
Brunet, Raag Jadav and Rafał Miłecki for their contributions. And
sorry for those who still need some patience because I didn't manage
to empty my review queue"
* tag 'pwm/for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux: (185 commits)
pwm: imx-tpm: fix probe crash due to access registers without clock
pwm: meson: generalize 4 inputs clock on meson8 pwm type
dt-bindings: pwm: amlogic: Add a new binding for meson8 pwm types
dt-bindings: pwm: amlogic: fix s4 bindings
pwm: dwc: simplify error handling
pwm: dwc: Add 16 channel support for Intel Elkhart Lake
pwm: dwc: drop redundant error check
staging: greybus: pwm: Make use of devm_pwmchip_alloc() function
staging: greybus: pwm: Rework how the number of PWM lines is determined
staging: greybus: pwm: Drop unused gb_connection_set_data()
staging: greybus: pwm: Rely on pwm framework to pass a valid hwpwm
staging: greybus: pwm: Make use of pwmchip_parent() accessor
staging: greybus: pwm: Change prototype of helpers to prepare further changes
leds: qcom-lpg: Make use of devm_pwmchip_alloc() function
drm/bridge: ti-sn65dsi86: Make use of devm_pwmchip_alloc() function
drm/bridge: ti-sn65dsi86: Make use of pwmchip_parent() accessor
gpio: mvebu: Make use of devm_pwmchip_alloc() function
pwm: xilinx: Make use of devm_pwmchip_alloc() function
pwm: xilinx: Prepare removing pwm_chip from driver data
pwm: vt8500: Make use of devm_pwmchip_alloc() function
...
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This function allocates a struct pwm_chip and driver data. Compared to
the status quo the split into pwm_chip and driver data is new, otherwise
it doesn't change anything relevant (yet).
The intention is that after all drivers are switched to use this
allocation function, its possible to add a struct device to struct
pwm_chip to properly track the latter's lifetime without touching all
drivers again. Proper lifetime tracking is a necessary precondition to
introduce character device support for PWMs (that implements atomic
setting and doesn't suffer from the sysfs overhead of the /sys/class/pwm
userspace support).
The new function pwmchip_priv() (obviously?) only works for chips
allocated with pwmchip_alloc().
Link: https://lore.kernel.org/r/9577d6053a5a52536057dc8654ff567181c2da82.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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Pull documentation updates from Jonathan Corbet:
"A moderatly busy cycle for development this time around.
- Some cleanup of the main index page for easier navigation
- Rework some of the other top-level pages for better readability
and, with luck, fewer merge conflicts in the future.
- Submit-checklist improvements, hopefully the first of many.
- New Italian translations
- A fair number of kernel-doc fixes and improvements. We have also
dropped the recommendation to use an old version of Sphinx.
- A new document from Thorsten on bisection
... and lots of fixes and updates"
* tag 'docs-6.9' of git://git.lwn.net/linux: (54 commits)
docs: verify/bisect: fixes, finetuning, and support for Arch
docs: Makefile: Add dependency to $(YNL_INDEX) for targets other than htmldocs
docs: Move ja_JP/howto.rst to ja_JP/process/howto.rst
docs: submit-checklist: use subheadings
docs: submit-checklist: structure by category
docs: new text on bisecting which also covers bug validation
docs: drop the version constraints for sphinx and dependencies
docs: kerneldoc-preamble.sty: Remove code for Sphinx <2.4
docs: Restore "smart quotes" for quotes
docs/zh_CN: accurate translation of "function"
docs: Include simplified link titles in main index
docs: Correct formatting of title in admin-guide/index.rst
docs: kernel_feat.py: fix build error for missing files
MAINTAINERS: Set the field name for subsystem profile section
kasan: Add documentation for CONFIG_KASAN_EXTRA_INFO
Fixed case issue with 'fault-injection' in documentation
kernel-doc: handle #if in enums as well
Documentation: update mailing list addresses
doc: kerneldoc.py: fix indentation
scripts/kernel-doc: simplify signature printing
...
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Add subsections in an attempt to bring a bit order to this page; also sort
most subsections into alphabetical order. With luck all this will help to
prevent merge conflicts on this page due to everybody adding entries at the
end.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/87plxtm2oo.fsf@meer.lwn.net
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Older versions of GCC really want to know the full definition
of the type involved in rcu_assign_pointer().
struct dpll_pin is defined in a local header, net/core can't
reach it. Move all the netdev <> dpll code into dpll, where
the type is known. Otherwise we'd need multiple function calls
to jump between the compilation units.
This is the same problem the commit under fixes was trying to address,
but with rcu_assign_pointer() not rcu_dereference().
Some of the exports are not needed, networking core can't
be a module, we only need exports for the helpers used by
drivers.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/all/35a869c8-52e8-177-1d4d-e57578b99b6@linux-m68k.org/
Fixes: 640f41ed33b5 ("dpll: fix build failure due to rcu_dereference_check() on unknown type")
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240305013532.694866-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Reserve ECAM so we don't assign it to PCI BARs; this works around
bugs where BIOS included ECAM in a PNP0A03 host bridge window,
didn't reserve it via a PNP0C02 motherboard device, and didn't
allocate space for SR-IOV VF BARs (Bjorn Helgaas)
- Add MMCONFIG/ECAM debug logging (Bjorn Helgaas)
- Rename 'MMCONFIG' to 'ECAM' to match spec usage (Bjorn Helgaas)
- Log device type (Root Port, Switch Port, etc) during enumeration
(Bjorn Helgaas)
- Log bridges before downstream devices so the dmesg order is more
logical (Bjorn Helgaas)
- Log resource names (BAR 0, VF BAR 0, bridge window, etc)
consistently instead of a mix of names and "reg 0x10" (Puranjay
Mohan, Bjorn Helgaas)
- Fix 64GT/s effective data rate calculation to use 1b/1b encoding
rather than the 8b/10b or 128b/130b used by lower rates (Ilpo
Järvinen)
- Use PCI_HEADER_TYPE_* instead of literals in x86, powerpc, SCSI
lpfc (Ilpo Järvinen)
- Clean up open-coded PCIBIOS return code mangling (Ilpo Järvinen)
Resource management:
- Restructure pci_dev_for_each_resource() to avoid computing the
address of an out-of-bounds array element (the bounds check was
performed later so the element was never actually *read*, but it's
nicer to avoid even computing an out-of-bounds address) (Andy
Shevchenko)
Driver binding:
- Convert pci-host-common.c platform .remove() callback to
.remove_new() returning 'void' since it's not useful to return
error codes here (Uwe Kleine-König)
- Convert exynos, keystone, kirin from .remove() to .remove_new(),
which returns void instead of int (Uwe Kleine-König)
- Drop unused struct pci_driver.node member (Mathias Krause)
Virtualization:
- Add ACS quirk for more Zhaoxin Root Ports (LeoLiuoc)
Error handling:
- Log AER errors as "Correctable" (not "Corrected") or
"Uncorrectable" to match spec terminology (Bjorn Helgaas)
- Decode Requester ID when no error info found instead of printing
the raw hex value (Bjorn Helgaas)
Endpoint framework:
- Use a unique test pattern for each BAR in the pci_endpoint_test to
make it easier to debug address translation issues (Niklas Cassel)
Broadcom STB PCIe controller driver:
- Add DT property "brcm,clkreq-mode" and driver support for different
CLKREQ# modes to make ASPM L1.x states possible (Jim Quinlan)
Freescale Layerscape PCIe controller driver:
- Add suspend/resume support for Layerscape LS1043a and LS1021a,
including software-managed PME_Turn_Off and transitions between L0,
L2/L3_Ready Link states (Frank Li)
MediaTek PCIe controller driver:
- Clear MSI interrupt status before handler to avoid missing MSIs
that occur after the handler (qizhong cheng)
MediaTek PCIe Gen3 controller driver:
- Update mediatek-gen3 translation window setup to handle MMIO space
that is not a power of two in size (Jianjun Wang)
Qualcomm PCIe controller driver:
- Increase qcom iommu-map maxItems to accommodate SDX55 (five
entries) and SDM845 (sixteen entries) (Krzysztof Kozlowski)
- Describe qcom,pcie-sc8180x clocks and resets accurately (Krzysztof
Kozlowski)
- Describe qcom,pcie-sm8150 clocks and resets accurately (Krzysztof
Kozlowski)
- Correct the qcom "reset-name" property, previously incorrectly
called "reset-names" (Krzysztof Kozlowski)
- Document qcom,pcie-sm8650, based on qcom,pcie-sm8550 (Neil
Armstrong)
Renesas R-Car PCIe controller driver:
- Replace of_device.h with explicit of.h include to untangle header
usage (Rob Herring)
- Add DT and driver support for optional miniPCIe 1.5v and 3.3v
regulators on KingFisher (Wolfram Sang)
SiFive FU740 PCIe controller driver:
- Convert fu740 CONFIG_PCIE_FU740 dependency from SOC_SIFIVE to
ARCH_SIFIVE (Conor Dooley)
Synopsys DesignWare PCIe controller driver:
- Align iATU mapping for endpoint MSI-X (Niklas Cassel)
- Drop "host_" prefix from struct dw_pcie_host_ops members (Yoshihiro
Shimoda)
- Drop "ep_" prefix from struct dw_pcie_ep_ops members (Yoshihiro
Shimoda)
- Rename struct dw_pcie_ep_ops.func_conf_select() to
.get_dbi_offset() to be more descriptive (Yoshihiro Shimoda)
- Add Endpoint DBI accessors to encapsulate offset lookups (Yoshihiro
Shimoda)
TI J721E PCIe driver:
- Add j721e DT and driver support for 'num-lanes' for devices that
support x1, x2, or x4 Links (Matt Ranostay)
- Add j721e DT compatible strings and driver support for j784s4 (Matt
Ranostay)
- Make TI J721E Kconfig depend on ARCH_K3 since the hardware is
specific to those TI SoC parts (Peter Robinson)
TI Keystone PCIe controller driver:
- Hold power management references to all PHYs while enabling them to
avoid a race when one provides clocks to others (Siddharth
Vadapalli)
Xilinx XDMA PCIe controller driver:
- Remove redundant dev_err(), since platform_get_irq() and
platform_get_irq_byname() already log errors (Yang Li)
- Fix uninitialized symbols in xilinx_pl_dma_pcie_setup_irq()
(Krzysztof Wilczyński)
- Fix xilinx_pl_dma_pcie_init_irq_domain() error return when
irq_domain_add_linear() fails (Harshit Mogalapalli)
MicroSemi Switchtec management driver:
- Do dma_mrpc cleanup during switchtec_pci_remove() to match its devm
ioremapping in switchtec_pci_probe(). Previously the cleanup was
done in stdev_release(), which used stale pointers if stdev->cdev
happened to be open when the PCI device was removed (Daniel
Stodden)
Miscellaneous:
- Convert interrupt terminology from "legacy" to "INTx" to be more
specific and match spec terminology (Damien Le Moal)
- In dw-xdata-pcie, pci_endpoint_test, and vmd, replace usage of
deprecated ida_simple_*() API with ida_alloc() and ida_free()
(Christophe JAILLET)"
* tag 'pci-v6.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (97 commits)
PCI: Fix kernel-doc issues
PCI: brcmstb: Configure HW CLKREQ# mode appropriate for downstream device
dt-bindings: PCI: brcmstb: Add property "brcm,clkreq-mode"
PCI: mediatek-gen3: Fix translation window size calculation
PCI: mediatek: Clear interrupt status before dispatching handler
PCI: keystone: Fix race condition when initializing PHYs
PCI: xilinx-xdma: Fix error code in xilinx_pl_dma_pcie_init_irq_domain()
PCI: xilinx-xdma: Fix uninitialized symbols in xilinx_pl_dma_pcie_setup_irq()
PCI: rcar-gen4: Fix -Wvoid-pointer-to-enum-cast error
PCI: iproc: Fix -Wvoid-pointer-to-enum-cast warning
PCI: dwc: Add dw_pcie_ep_{read,write}_dbi[2] helpers
PCI: dwc: Rename .func_conf_select to .get_dbi_offset in struct dw_pcie_ep_ops
PCI: dwc: Rename .ep_init to .init in struct dw_pcie_ep_ops
PCI: dwc: Drop host prefix from struct dw_pcie_host_ops members
misc: pci_endpoint_test: Use a unique test pattern for each BAR
PCI: j721e: Make TI J721E depend on ARCH_K3
PCI: j721e: Add TI J784S4 PCIe configuration
PCI/AER: Use explicit register sizes for struct members
PCI/AER: Decode Requester ID when no error info found
PCI/AER: Use 'Correctable' and 'Uncorrectable' spec terms for errors
...
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Update Documentation/driver-api/pci/p2pdma.rst doc and remove references to
obsolete p2pdma mapping functions.
Fixes: 0d06132fc84b ("PCI/P2PDMA: Remove pci_p2pdma_[un]map_sg()")
Link: https://lore.kernel.org/r/20231113180325.444692-1-tstruk@gmail.com
Signed-off-by: Tadeusz Struk <tstruk@gigaio.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Cc: stable@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"This contains a bunch of cleanups and simplifications across the
board, as well as a number of small fixes.
Perhaps the most notable change here is the addition of an API that
allows PWMs to be used in atomic contexts, which is useful when time-
critical operations are involved, such as using a PWM to generate IR
signals.
Finally, I have decided to step down as PWM subsystem maintainer. Due
to other responsibilities I have lately not been able to find the time
that the subsystem deserves and Uwe, who has been helping out a lot
for the past few years and has many things planned for the future, has
kindly volunteered to take over. I have no doubt that he will be a
suitable replacement"
* tag 'pwm/for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (44 commits)
MAINTAINERS: pwm: Thierry steps down, Uwe takes over
pwm: linux/pwm.h: fix Excess kernel-doc description warning
pwm: Add pwm_apply_state() compatibility stub
pwm: cros-ec: Drop documentation for dropped struct member
pwm: Drop two unused API functions
pwm: lpc18xx-sct: Don't modify the cached period of other PWM outputs
pwm: meson: Simplify using dev_err_probe()
pwm: stmpe: Silence duplicate error messages
pwm: Reduce number of pointer dereferences in pwm_device_request()
pwm: crc: Use consistent variable naming for driver data
pwm: omap-dmtimer: Drop locking
dt-bindings: pwm: ti,pwm-omap-dmtimer: Update binding for yaml
media: pwm-ir-tx: Trigger edges from hrtimer interrupt context
pwm: bcm2835: Allow PWM driver to be used in atomic context
pwm: Make it possible to apply PWM changes in atomic context
pwm: renesas: Remove unused include
pwm: Replace ENOTSUPP with EOPNOTSUPP
pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()
pwm: Stop referencing pwm->chip
pwm: Update kernel doc for struct pwm_chip
...
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Some PWM devices require sleeping, for example if the pwm device is
connected over I2C. However, many PWM devices could be used from atomic
context, e.g. memory mapped PWM. This is useful for, for example, the
pwm-ir-tx driver which requires precise timing. Sleeping causes havoc
with the generated IR signal.
Since not all PWM devices can support atomic context, we also add a
pwm_might_sleep() function to check if is not supported.
Signed-off-by: Sean Young <sean@mess.org>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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In order to introduce a pwm api which can be used from atomic context,
we will need two functions for applying pwm changes:
int pwm_apply_might_sleep(struct pwm *, struct pwm_state *);
int pwm_apply_atomic(struct pwm *, struct pwm_state *);
This commit just deals with renaming pwm_apply_state(), a following
commit will introduce the pwm_apply_atomic() function.
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> # for input
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- v4l core: subdev frame interval now supports which field
- v4l kapi: moves and renames the init_cfg pad op to init_state as an
internal op.
- new sensor drivers: gc0308, gc2145, Avnet Alvium, ov64a40, tw9900
- new camera driver: STM32 DCMIPP
- s5p-mfc has gained MFC v12 support
- new ISP driver added to staging: Starfive
- new stateful encoder/decoded: Wave5 codec It is found on the J721S2
SoC, JH7100 SoC, ssd202d SoC. Etc.
- fwnode gained support for MIPI "DisCo for Imaging"
(https://www.mipi.org/specifications/mipi-disco-imaging)
- as usual, lots of cleanups, fixups and driver improvements.
* tag 'media/v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (309 commits)
media: i2c: thp7312: select CONFIG_FW_LOADER
media: i2c: mt9m114: use fsleep() in place of udelay()
media: videobuf2: core: Rename min_buffers_needed field in vb2_queue
media: i2c: thp7312: Store frame interval in subdev state
media: docs: uAPI: Fix documentation of 'which' field for routing ioctls
media: docs: uAPI: Expand error documentation for invalid 'which' value
media: docs: uAPI: Clarify error documentation for invalid 'which' value
media: v4l2-subdev: Store frame interval in subdev state
media: v4l2-subdev: Add which field to struct v4l2_subdev_frame_interval
media: v4l2-subdev: Turn .[gs]_frame_interval into pad operations
media: v4l: subdev: Move out subdev state lock macros outside CONFIG_MEDIA_CONTROLLER
media: s5p-mfc: DPB Count Independent of VIDIOC_REQBUF
media: s5p-mfc: Load firmware for each run in MFCv12.
media: s5p-mfc: Set context for valid case before calling try_run
media: s5p-mfc: Add support for DMABUF for encoder
media: s5p-mfc: Add support for UHD encoding.
media: s5p-mfc: Add support for rate controls in MFCv12
media: s5p-mfc: Add YV12 and I420 multiplanar format support
media: s5p-mfc: Add initial support for MFCv12
media: s5p-mfc: Rename IS_MFCV10 macro
...
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LP-11 and LP-111 are CSI-2 bus states, not modes. Fix this.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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BT.601 is not actually a bus specification, leaving parallel bus without a
specification to refer to. Fix this.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Generate register definitions that are fit for use with V4L2 CCI.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Document that sub-device initialisation needs to complete before the async
sub-device is registered as there is no further driver action needed
before the sensor becomes accessible via the UAPI.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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V4L2 subdev operations have moved from operating on a
v4l2_subdev_pad_config to a v4l2_subdev_state a long time ago. Fix the
few remaining incorrect references to pad config in the documentation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Pull documentation update from Jonathan Corbet:
"Another moderately busy cycle for documentation, including:
- The minimum Sphinx requirement has been raised to 2.4.4, following
a warning that was added in 6.2
- Some reworking of the Documentation/process front page to,
hopefully, make it more useful
- Various kernel-doc tweaks to, for example, make it deal properly
with __counted_by annotations
- We have also restored a warning for documentation of nonexistent
structure members that disappeared a while back. That had the
delightful consequence of adding some 600 warnings to the docs
build. A sustained effort by Randy, Vegard, and myself has
addressed almost all of those, bringing the documentation back into
sync with the code. The fixes are going through the appropriate
maintainer trees
- Various improvements to the HTML rendered docs, including automatic
links to Git revisions and a nice new pulldown to make translations
easy to access
- Speaking of translations, more of those for Spanish and Chinese
... plus the usual stream of documentation updates and typo fixes"
* tag 'docs-6.8' of git://git.lwn.net/linux: (57 commits)
MAINTAINERS: use tabs for indent of CONFIDENTIAL COMPUTING THREAT MODEL
A reworked process/index.rst
ring-buffer/Documentation: Add documentation on buffer_percent file
Translated the RISC-V architecture boot documentation.
Docs: remove mentions of fdformat from util-linux
Docs/zh_CN: Fix the meaning of DEBUG to pr_debug()
Documentation: move driver-api/dcdbas to userspace-api/
Documentation: move driver-api/isapnp to userspace-api/
Documentation/core-api : fix typo in workqueue
Documentation/trace: Fixed typos in the ftrace FLAGS section
kernel-doc: handle a void function without producing a warning
scripts/get_abi.pl: ignore some temp files
docs: kernel_abi.py: fix command injection
scripts/get_abi: fix source path leak
CREDITS, MAINTAINERS, docs/process/howto: Update man-pages' maintainer
docs: translations: add translations links when they exist
kernel-doc: Align quick help and the code
MAINTAINERS: add reviewer for Spanish translations
docs: ignore __counted_by attribute in structure definitions
scripts: kernel-doc: Clarify missing struct member description
..
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This file documents a sysfs interface that is intended for systems
management software. It does NOT document any kind of kernel driver
API. It is also not meant to be used directly by system administrators
or users.
Cc: Stuart Hayes <stuart.w.hayes@gmail.com>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231221124816.2978000-3-vegard.nossum@oracle.com
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driver-api/isapnp documents /proc interfaces for interfacing directly
with ISA Plug & Play devices, not any kind of API for kernel developers,
and should thus also live under userspace-api/.
Also fix a few issues while we're at it.
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231221124816.2978000-2-vegard.nossum@oracle.com
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Add a separate documentation directory for TEE subsystem since it is a
standalone subsystem which already offers devices consumed by multiple
different subsystem drivers.
Split overall TEE subsystem documentation modularly where:
- The userspace API has been moved to Documentation/userspace-api/tee.rst.
- The driver API has been moved to Documentation/driver-api/tee.rst.
- The first module covers the overview of TEE subsystem.
- The further modules are dedicated to different TEE implementations like:
- OP-TEE
- AMD-TEE
- and so on for future TEE implementation support.
Acked-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231128072352.866859-1-sumit.garg@linaro.org
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Adding a parameter is not particularly useful here, and it is definitely
not done elsewhere. It also prevents the generation of a hyperlink to the
kernel-doc documentation. Removing the parameter to enable hyperlinks and
make the style coherent.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231201-nvmem-docs-kerneldoc-v1-2-3e8f2b706ce6@bootlin.com
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This is useful on its own, and it also enables hyperlink generation for
functions mentioned in ReST documentation.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231201-nvmem-docs-kerneldoc-v1-1-3e8f2b706ce6@bootlin.com
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Vegard Nossum writes:
This patch series replaces some instances of 'class:: toc-title' with
toctree's :caption: attribute, see the last patch in the series for some
more rationale/explanation.
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"class:: toc-title" was a workaround for older Sphinx versions that are
no longer supported.
The canonical way to add a heading to the ToC is to use :caption:.
Do that.
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Armin Wolf <W_Armin@gmx.de>
Cc: Iwona Winiarska <iwona.winiarska@intel.com>
Cc: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: linux-media@vger.kernel.org
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Alex Shi <alexs@kernel.org>
Cc: Wu XiangCheng <bobwxc@email.cn>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231027081830.195056-7-vegard.nossum@oracle.com
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic cleanups from Arnd Bergmann:
"A series from Baoquan He cleans up the asm-generic/io.h to remove the
ioremap_uc() definition from everything except x86, which still needs
it for pre-PAT systems. This series notably contains a patch from
Jiaxun Yang that converts MIPS to use asm-generic/io.h like every
other architecture does, enabling future cleanups.
Some of my own patches fix -Wmissing-prototype warnings in
architecture specific code across several architectures. This is now
needed as the warning is enabled by default. There are still some
remaining warnings in minor platforms, but the series should catch
most of the widely used ones make them more consistent with one
another.
David McKay fixes a bug in __generic_cmpxchg_local() when this is used
on 64-bit architectures. This could currently only affect parisc64 and
sparc64.
Additional cleanups address from Linus Walleij, Uwe Kleine-König,
Thomas Huth, and Kefeng Wang help reduce unnecessary inconsistencies
between architectures"
* tag 'asm-generic-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: Fix 32 bit __generic_cmpxchg_local
Hexagon: Make pfn accessors statics inlines
ARC: mm: Make virt_to_pfn() a static inline
mips: remove extraneous asm-generic/iomap.h include
sparc: Use $(kecho) to announce kernel images being ready
arm64: vdso32: Define BUILD_VDSO32_64 to correct prototypes
csky: fix arch_jump_label_transform_static override
arch: add do_page_fault prototypes
arch: add missing prepare_ftrace_return() prototypes
arch: vdso: consolidate gettime prototypes
arch: include linux/cpu.h for trap_init() prototype
arch: fix asm-offsets.c building with -Wmissing-prototypes
arch: consolidate arch_irq_work_raise prototypes
hexagon: Remove CONFIG_HEXAGON_ARCH_VERSION from uapi header
asm/io: remove unnecessary xlate_dev_mem_ptr() and unxlate_dev_mem_ptr()
mips: io: remove duplicated codes
arch/*/io.h: remove ioremap_uc in some architectures
mips: add <asm-generic/io.h> including
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ioremap_uc() is only meaningful on old x86-32 systems with the PAT
extension, and on ia64 with its slightly unconventional ioremap()
behavior. So remove the ioremap_uc() definition in architecutures
other than x86 and ia64. These architectures all have asm-generic/io.h
included and will have the default ioremap_uc() definition which
returns NULL.
This changes the existing behaviour, while no need to worry about
any breakage because in the only callsite of ioremap_uc(), code
has been adjusted to eliminate the impact. Please see
atyfb_setup_generic() of drivers/video/fbdev/aty/atyfb_base.c.
If any new invocation of ioremap_uc() need be added, please consider
using ioremap() intead or adding a ARCH specific version if necessary.
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Helge Deller <deller@gmx.de> # parisc
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> (SuperH)
Cc: linux-alpha@vger.kernel.org
Cc: linux-hexagon@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Add incremental lskcipher/skcipher processing
Algorithms:
- Remove SHA1 from drbg
- Remove CFB and OFB
Drivers:
- Add comp high perf mode configuration in hisilicon/zip
- Add support for 420xx devices in qat
- Add IAA Compression Accelerator driver"
* tag 'v6.8-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (172 commits)
crypto: iaa - Account for cpu-less numa nodes
crypto: scomp - fix req->dst buffer overflow
crypto: sahara - add support for crypto_engine
crypto: sahara - remove error message for bad aes request size
crypto: sahara - remove unnecessary NULL assignments
crypto: sahara - remove 'active' flag from sahara_aes_reqctx struct
crypto: sahara - use dev_err_probe()
crypto: sahara - use devm_clk_get_enabled()
crypto: sahara - use BIT() macro
crypto: sahara - clean up macro indentation
crypto: sahara - do not resize req->src when doing hash operations
crypto: sahara - fix processing hash requests with req->nbytes < sg->length
crypto: sahara - improve error handling in sahara_sha_process()
crypto: sahara - fix wait_for_completion_timeout() error handling
crypto: sahara - fix ahash reqsize
crypto: sahara - handle zero-length aes requests
crypto: skcipher - remove excess kerneldoc members
crypto: shash - remove excess kerneldoc members
crypto: qat - generate dynamically arbiter mappings
crypto: qat - add support for ring pair level telemetry
...
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Because the IAA Compression Accelerator requires significant user
setup in order to be used properly, this adds documentation on the
iaa_crypto driver including setup, usage, and examples.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
- Intel PMC / PMT / TPMI / uncore-freq / vsec improvements and new
platform support
- AMD PMC / PMF improvements and new platform support
- AMD ACPI based Wifi band RFI mitigation feature (WBRF)
- WMI bus driver cleanups and improvements (Armin Wolf)
- acer-wmi Predator PHN16-71 support
- New Silicom network appliance EC LEDs / GPIOs driver
* tag 'platform-drivers-x86-v6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (96 commits)
platform/x86/amd/pmc: Modify SMU message port for latest AMD platform
platform/x86/amd/pmc: Add 1Ah family series to STB support list
platform/x86/amd/pmc: Add idlemask support for 1Ah family
platform/x86/amd/pmc: call amd_pmc_get_ip_info() during driver probe
platform/x86/amd/pmc: Add VPE information for AMDI000A platform
platform/x86/amd/pmc: Send OS_HINT command for AMDI000A platform
platform/x86/amd/pmf: Return a status code only as a constant in two functions
platform/x86/amd/pmf: Return directly after a failed apmf_if_call() in apmf_sbios_heartbeat_notify()
platform/x86: wmi: linux/wmi.h: fix Excess kernel-doc description warning
platform/x86/intel/pmc: Add missing extern
platform/x86/intel/pmc/lnl: Add GBE LTR ignore during suspend
platform/x86/intel/pmc/arl: Add GBE LTR ignore during suspend
platform/x86: intel-uncore-freq: Add additional client processors
platform/x86: Remove "X86 PLATFORM DRIVERS - ARCH" from MAINTAINERS
platform/x86: hp-bioscfg: Removed needless asm-generic
platform/x86/intel/pmc: Add Lunar Lake M support to intel_pmc_core driver
platform/x86/intel/pmc: Add Arrow Lake S support to intel_pmc_core driver
platform/x86/intel/pmc: Add ssram_init flag in PMC discovery in Meteor Lake
platform/x86/intel/pmc: Move common code to core.c
platform/x86/intel/pmc: Add PSON residency counter for Alder Lake
...
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Add documentation about AMD's Wifi band RFI mitigation (WBRF) mechanism
explaining the theory and how it is used.
Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from Miquel Raynal:
"MTD:
- Apart from preventing the mtdblk to run on top of ftl or ubiblk
(which may cause security issues and has no meaning anyway), there
are a few misc fixes.
Raw NAND:
- Two meaningful changes this time. The conversion of the brcmnand
driver to the ->exec_op() API, this series brought additional
changes to the core in order to help controller drivers to handle
themselves the WP pin during destructive operations when relevant.
- There is also a series bringing important fixes to the sequential
read feature.
- As always, there is as well a whole bunch of miscellaneous W=1
fixes, together with a few runtime fixes (double free, timeout
value, OOB layout, missing register initialization) and the usual
load of remove callbacks turned into void (which led to switch the
txx9ndfmc driver to use module_platform_driver()).
SPI NOR:
- SPI NOR comes with die erase support for multi die flashes, with
new octal protocols (1-1-8 and 1-8-8) parsed from SFDP and with an
updated documentation about what the contributors shall consider
when proposing flash additions or updates.
- Michael Walle stepped out from the reviewer role to maintainer"
* tag 'mtd/for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (39 commits)
mtd: rawnand: Clarify conditions to enable continuous reads
mtd: rawnand: Prevent sequential reads with on-die ECC engines
mtd: rawnand: Fix core interference with sequential reads
mtd: rawnand: Prevent crossing LUN boundaries during sequential reads
mtd: Fix gluebi NULL pointer dereference caused by ftl notifier
dt-bindings: mtd: partitions: u-boot: Fix typo
mtd: rawnand: s3c2410: fix Excess struct member description kernel-doc warnings
MAINTAINERS: change my mail to the kernel.org one
mtd: spi-nor: sfdp: get the 1-1-8 and 1-8-8 protocol from SFDP
mtd: spi-nor: drop superfluous debug prints
mtd: spi-nor: sysfs: hide the flash name if not set
mtd: spi-nor: mark the flash name as obsolete
mtd: spi-nor: print flash ID instead of name
mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters
mtd: ssfdc: Remove an unused variable
mtd: rawnand: diskonchip: fix a potential double free in doc_probe
mtd: rawnand: rockchip: Add missing title to a kernel doc comment
mtd: rawnand: rockchip: Rename a structure
mtd: rawnand: pl353: Fix kernel doc
mtd: spi-nor: micron-st: Add support for mt25qu01g
...
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The architecture description is obsolete, it no longer applies to
the current SPI NOR framework state, remove it.
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Link: https://lore.kernel.org/r/20231124184902.1194235-3-tudor.ambarus@linaro.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
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Add sections about how to propose a new flash addition and about the
minimum testing requirements.
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Link: https://lore.kernel.org/r/20231124184902.1194235-2-tudor.ambarus@linaro.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
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