Merge tag 'v6.6.33' into dev-6.6

This is the 6.6.33 stable release

fpga: bridge: add owner module and take its refcount

[ Upstream commit 1da11f822042eb6ef4b6064dc048f157a7852529 ]

The current implementation of the fpga bridge assumes that the low-level
module reg

fpga: bridge: add owner module and take its refcount

[ Upstream commit 1da11f822042eb6ef4b6064dc048f157a7852529 ]

The current implementation of the fpga bridge assumes that the low-level
module registers a driver for the parent device and uses its owner pointer
to take the module's refcount. This approach is problematic since it can
lead to a null pointer dereference while attempting to get the bridge if
the parent device does not have a driver.

To address this problem, add a module owner pointer to the fpga_bridge
struct and use it to take the module's refcount. Modify the function for
registering a bridge to take an additional owner module parameter and
rename it to avoid conflicts. Use the old function name for a helper macro
that automatically sets the module that registers the bridge as the owner.
This ensures compatibility with existing low-level control modules and
reduces the chances of registering a bridge without setting the owner.

Also, update the documentation to keep it consistent with the new interface
for registering an fpga bridge.

Other changes: opportunistically move put_device() from __fpga_bridge_get()
to fpga_bridge_get() and of_fpga_bridge_get() to improve code clarity since
the bridge device is taken in these functions.

Fixes: 21aeda950c5f ("fpga: add fpga bridge framework")
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Xu Yilun <yilun.xu@intel.com>
Reviewed-by: Russ Weight <russ.weight@linux.dev>
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20240322171839.233864-1-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Merge drm/drm-fixes into drm-misc-fixes

Forwarding to v6.6-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
"Here is the big set of char/misc and other small driver

Merge tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
"Here is the big set of char/misc and other small driver subsystem
changes for 6.6-rc1.

Stuff all over the place here, lots of driver updates and changes and
new additions. Short summary is:

- new IIO drivers and updates

- Interconnect driver updates

- fpga driver updates and additions

- fsi driver updates

- mei driver updates

- coresight driver updates

- nvmem driver updates

- counter driver updates

- lots of smaller misc and char driver updates and additions

All of these have been in linux-next for a long time with no reported
problems"

* tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (267 commits)
nvmem: core: Notify when a new layout is registered
nvmem: core: Do not open-code existing functions
nvmem: core: Return NULL when no nvmem layout is found
nvmem: core: Create all cells before adding the nvmem device
nvmem: u-boot-env:: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
nvmem: sec-qfprom: Add Qualcomm secure QFPROM support
dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom
dt-bindings: nvmem: Add compatible for QCM2290
nvmem: Kconfig: Fix typo "drive" -> "driver"
nvmem: Explicitly include correct DT includes
nvmem: add new NXP QorIQ eFuse driver
dt-bindings: nvmem: Add t1023-sfp efuse support
dt-bindings: nvmem: qfprom: Add compatible for MSM8226
nvmem: uniphier: Use devm_platform_get_and_ioremap_resource()
nvmem: qfprom: do some cleanup
nvmem: stm32-romem: Use devm_platform_get_and_ioremap_resource()
nvmem: rockchip-efuse: Use devm_platform_get_and_ioremap_resource()
nvmem: meson-mx-efuse: Convert to devm_platform_ioremap_resource()
nvmem: lpc18xx_otp: Convert to devm_platform_ioremap_resource()
nvmem: brcm_nvram: Use devm_platform_get_and_ioremap_resource()
...

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Merge branch 'next' into for-linus

Prepare input updates for 6.6 merge window.

Merge tag 'fpga-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga into char-misc-next

Xu writes:

FPGA Manager changes for 6.6-rc1

- Marco's change fixes kernel-doc warn

Merge tag 'fpga-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga into char-misc-next

Xu writes:

FPGA Manager changes for 6.6-rc1

- Marco's change fixes kernel-doc warnings.
- Yangtao's change converts to use devm_platform_ioremap_resource().
- Peter's change uses HWMON defined Macros for HWMON interfaces support.
- Rob's change explicitly includes correct DT includes.
- Marco's change adds KUnit tests for FPGA core.
- Xiongfeng's change converts to use pci_find_vsec_capability().
- Ivan's change makes fpga_xxx_class a static const structure.

All patches have been reviewed on the mailing list, and have been in the
last linux-next releases (as part of our for-next branch).

Signed-off-by: Xu Yilun <yilun.xu@intel.com>

* tag 'fpga-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga:
fpga: region: make fpga_region_class a static const structure
fpga: fpga-mgr: make fpga_mgr_class a static const structure
fpga: bridge: make fpga_bridge_class a static const structure
fpga: dfl-pci: Use pci_find_vsec_capability() to simplify the code
fpga: add configuration for the FPGA KUnit test suites.
fpga: add an initial KUnit suite for the FPGA Region
fpga: add an initial KUnit suite for the FPGA Bridge
fpga: add an initial KUnit suite for the FPGA Manager
fpga: Explicitly include correct DT includes
fpga: socfpga-a10: Convert to devm_platform_ioremap_resource()
fpga: fpga-mgr: altera-pr-ip: Convert to devm_platform_ioremap_resource()
fpga: zynq-fpga: Convert to devm_platform_ioremap_resource()
fpga: fpga-mgr: ts73xx: Convert to devm_platform_ioremap_resource()
fpga: fpga-mgr: socfpga: Convert to devm_platform_ioremap_resource()
fpga: xilinx-pr-decoupler: Convert to devm_platform_ioremap_resource()
fpga: dfl-fme-mgr: Convert to devm_platform_ioremap_resource()
fpga: bridge: Convert to devm_platform_ioremap_resource()
fpga: bridge: fix kernel-doc
fpga: region: fix kernel-doc
fpga: dfl: fme: use SI unit prefix macros

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fpga: bridge: make fpga_bridge_class a static const structure

Now that the driver core allows for struct class to be in read-only
memory, move the fpga_bridge_class structure to be declared at build

fpga: bridge: make fpga_bridge_class a static const structure

Now that the driver core allows for struct class to be in read-only
memory, move the fpga_bridge_class structure to be declared at build
time placing it into read-only memory, instead of having to be
dynamically allocated at boot time.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230811073043.52808-1-ivan.orlov0322@gmail.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>

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Merge tag 'v6.4' into next

Sync up with mainline to bring in updates to shared infrastructure.

fpga: bridge: fix kernel-doc

Fix the following warnings issued by the kernel-doc script:

drivers/fpga/fpga-bridge.c:99: warning: No description found for return value of 'of_fpga_bridge_get'
driver

fpga: bridge: fix kernel-doc

Fix the following warnings issued by the kernel-doc script:

drivers/fpga/fpga-bridge.c:99: warning: No description found for return value of 'of_fpga_bridge_get'
drivers/fpga/fpga-bridge.c:163: warning: No description found for return value of 'fpga_bridges_enable'
drivers/fpga/fpga-bridge.c:187: warning: No description found for return value of 'fpga_bridges_disable'
drivers/fpga/fpga-bridge.c:238: warning: No description found for return value of 'of_fpga_bridge_get_to_list'
drivers/fpga/fpga-bridge.c:268: warning: No description found for return value of 'fpga_bridge_get_to_list'

- Extend the return description of of_fpga_bridge_get() to include the
case when try_module_get() fails.

Signed-off-by: Marco Pagani <marpagan@redhat.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230706142755.124879-3-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>

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Merge branch 'for-6.5/apple' into for-linus

- improved support for Keychron K8 keyboard (Lasse Brun)

Merge drm/drm-next into drm-misc-next-fixes

Backmerging to sync drm-misc-next-fixes with drm-misc-next.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge branch 'drm-next' of git://anongit.freedesktop.org/drm/drm into msm-next-lumag-base

Merge the drm-next tree to pick up the DRM DSC helpers (merged via
drm-intel-next tree). MSM DSC v1.2 patche

Merge branch 'drm-next' of git://anongit.freedesktop.org/drm/drm into msm-next-lumag-base

Merge the drm-next tree to pick up the DRM DSC helpers (merged via
drm-intel-next tree). MSM DSC v1.2 patches depend on these helpers.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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Merge tag 'v6.4-rc4' into wpan-next/staging

Linux 6.4-rc4

Merge drm/drm-next into drm-intel-gt-next

For conflict avoidance we need the following commit:

c9a9f18d3ad8 drm/i915/huc: use const struct bus_type pointers

Signed-off-by: Tvrtko Ursulin <tvrtko

Merge drm/drm-next into drm-intel-gt-next

For conflict avoidance we need the following commit:

c9a9f18d3ad8 drm/i915/huc: use const struct bus_type pointers

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

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Merge drm/drm-next into drm-intel-next

Backmerge to get some hwmon dependencies.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-fixes into drm-misc-fixes

Let's bring 6.4-rc1 in drm-misc-fixes to start the new fix cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge drm/drm-next into drm-misc-next

Start the 6.5 release cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge branch 'next' into for-linus

Prepare input updates for 6.4 merge window.

Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc drivers updates from Greg KH:
"Here is the "big" set of char/misc and other driver sub

Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc drivers updates from Greg KH:
"Here is the "big" set of char/misc and other driver subsystems for
6.4-rc1.

It's pretty big, but due to the removal of pcmcia drivers, almost
breaks even for number of lines added vs. removed, a nice change.

Included in here are:

- removal of unused PCMCIA drivers (finally!)

- Interconnect driver updates and additions

- Lots of IIO driver updates and additions

- MHI driver updates

- Coresight driver updates

- NVMEM driver updates, which required some OF updates

- W1 driver updates and a new maintainer to manage the subsystem

- FPGA driver updates

- New driver subsystem, CDX, for AMD systems

- lots of other small driver updates and additions

All of these have been in linux-next for a while with no reported
issues"

* tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits)
mcb-lpc: Reallocate memory region to avoid memory overlapping
mcb-pci: Reallocate memory region to avoid memory overlapping
mcb: Return actual parsed size when reading chameleon table
kernel/configs: Drop Android config fragments
virt: acrn: Replace obsolete memalign() with posix_memalign()
spmi: Add a check for remove callback when removing a SPMI driver
spmi: fix W=1 kernel-doc warnings
spmi: mtk-pmif: Drop of_match_ptr for ID table
spmi: pmic-arb: Convert to platform remove callback returning void
spmi: mtk-pmif: Convert to platform remove callback returning void
spmi: hisi-spmi-controller: Convert to platform remove callback returning void
w1: gpio: remove unnecessary ENOMEM messages
w1: omap-hdq: remove unnecessary ENOMEM messages
w1: omap-hdq: add SPDX tag
w1: omap-hdq: allow compile testing
w1: matrox: remove unnecessary ENOMEM messages
w1: matrox: use inline over __inline__
w1: matrox: switch from asm to linux header
w1: ds2482: do not use assignment in if condition
w1: ds2482: drop unnecessary header
...

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Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.4-rc1.

Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.4-rc1.

Once again, a busy development cycle, with lots of changes happening
in the driver core in the quest to be able to move "struct bus" and
"struct class" into read-only memory, a task now complete with these
changes.

This will make the future rust interactions with the driver core more
"provably correct" as well as providing more obvious lifetime rules
for all busses and classes in the kernel.

The changes required for this did touch many individual classes and
busses as many callbacks were changed to take const * parameters
instead. All of these changes have been submitted to the various
subsystem maintainers, giving them plenty of time to review, and most
of them actually did so.

Other than those changes, included in here are a small set of other
things:

- kobject logging improvements

- cacheinfo improvements and updates

- obligatory fw_devlink updates and fixes

- documentation updates

- device property cleanups and const * changes

- firwmare loader dependency fixes.

All of these have been in linux-next for a while with no reported
problems"

* tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits)
device property: make device_property functions take const device *
driver core: update comments in device_rename()
driver core: Don't require dynamic_debug for initcall_debug probe timing
firmware_loader: rework crypto dependencies
firmware_loader: Strip off \n from customized path
zram: fix up permission for the hot_add sysfs file
cacheinfo: Add use_arch[|_cache]_info field/function
arch_topology: Remove early cacheinfo error message if -ENOENT
cacheinfo: Check cache properties are present in DT
cacheinfo: Check sib_leaf in cache_leaves_are_shared()
cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
cacheinfo: Add arm64 early level initializer implementation
cacheinfo: Add arch specific early level initializer
tty: make tty_class a static const structure
driver core: class: remove struct class_interface * from callbacks
driver core: class: mark the struct class in struct class_interface constant
driver core: class: make class_register() take a const *
driver core: class: mark class_release() as taking a const *
driver core: remove incorrect comment for device_create*
MIPS: vpe-cmp: remove module owner pointer from struct class usage.
...

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Merge branch 'for-6.4/amd-sfh' into for-linus

- assorted functional fixes for amd-sfh driver (Basavaraj Natikar)

Merge tag 'char-misc-6.3-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
"Here are some last-minute tiny driver fixes for 6.3-fina

Merge tag 'char-misc-6.3-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
"Here are some last-minute tiny driver fixes for 6.3-final. They
include fixes for some fpga and iio drivers:

- fpga bridge driver fix

- fpga dfl error reporting fix

- fpga m10bmc driver fix

- fpga xilinx driver fix

- iio light driver fix

- iio dac fwhandle leak fix

- iio adc driver fix

All of these have been in linux-next for a few weeks with no reported
problems"

* tag 'char-misc-6.3-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
iio: light: tsl2772: fix reading proximity-diodes from device tree
fpga: bridge: properly initialize bridge device before populating children
iio: dac: ad5755: Add missing fwnode_handle_put()
iio: adc: at91-sama5d2_adc: fix an error code in at91_adc_allocate_trigger()
fpga: xilinx-pr-decoupler: Use readl wrapper instead of pure readl
fpga: dfl-pci: Drop redundant pci_enable_pcie_error_reporting()
fpga: m10bmc-sec: Fix rsu_send_data() to return FW_UPLOAD_ERR_HW_ERROR

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Merge drm/drm-next into drm-intel-gt-next

Need to pull in commit from drm-next (earlier in drm-intel-next):

1eca0778f4b3 ("drm/i915: add struct i915_dsm to wrap dsm members together")

In order to

Merge drm/drm-next into drm-intel-gt-next

Need to pull in commit from drm-next (earlier in drm-intel-next):

1eca0778f4b3 ("drm/i915: add struct i915_dsm to wrap dsm members together")

In order to merge following patch to drm-intel-gt-next:

https://patchwork.freedesktop.org/patch/530942/?series=114925&rev=6

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

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Merge tag 'fpga-for-6.3-final' of git://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga into char-misc-next

Xu writes:

FPGA Manager changes for 6.3-final

Intel m10 bmc secure update:

- Il

Merge tag 'fpga-for-6.3-final' of git://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga into char-misc-next

Xu writes:

FPGA Manager changes for 6.3-final

Intel m10 bmc secure update:

- Ilpo's change fixes the return value of driver internal function

DFL PCI driver:

- Bjorn's change drops redundant pci_enable_pcie_error_reporting()

Xilinx:

- Michal's change uses xlnx_pr_decouple_read() instead of readl() to
resolve sparse issue.

FPGA core:

- Alexis's change fixes kernel warning on fpga bridge register

All patches have been reviewed on the mailing list, and have been in the
last linux-next releases (as part of our fixes branch)

Signed-off-by: Xu Yilun <yilun.xu@intel.com>

* tag 'fpga-for-6.3-final' of git://git.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga:
fpga: bridge: properly initialize bridge device before populating children
fpga: xilinx-pr-decoupler: Use readl wrapper instead of pure readl
fpga: dfl-pci: Drop redundant pci_enable_pcie_error_reporting()
fpga: m10bmc-sec: Fix rsu_send_data() to return FW_UPLOAD_ERR_HW_ERROR

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fpga: bridge: properly initialize bridge device before populating children

The current code path can lead to warnings because of uninitialized device,
which contains, as a consequence, uninitialized

fpga: bridge: properly initialize bridge device before populating children

The current code path can lead to warnings because of uninitialized device,
which contains, as a consequence, uninitialized kobject. The uninitialized
device is passed to of_platform_populate, which will at some point, while
creating child device, try to get a reference on uninitialized parent,
resulting in the following warning:

kobject: '(null)' ((ptrval)): is not initialized, yet kobject_get() is
being called.

The warning is observed after migrating a kernel 5.10.x to 6.1.x.
Reverting commit 0d70af3c2530 ("fpga: bridge: Use standard dev_release for
class driver") seems to remove the warning.
This commit aggregates device_initialize() and device_add() into
device_register() but this new call is done AFTER of_platform_populate

Fixes: 0d70af3c2530 ("fpga: bridge: Use standard dev_release for class driver")
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230404133102.2837535-2-alexis.lothore@bootlin.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>

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