Commit graph

1947 commits

Author SHA1 Message Date
Sergey Shtylyov
a1aa5390cc of: module: prevent NULL pointer dereference in vsnprintf()
In of_modalias(), we can get passed the str and len parameters which would
cause a kernel oops in vsnprintf() since it only allows passing a NULL ptr
when the length is also 0. Also, we need to filter out the negative values
of the len parameter as these will result in a really huge buffer since
snprintf() takes size_t parameter while ours is ssize_t...

Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1d211023-3923-685b-20f0-f3f90ea56e1f@omp.ru
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-27 17:05:07 -05:00
Herve Codina
8917e73853 of: dynamic: Synchronize of_changeset_destroy() with the devlink removals
In the following sequence:
  1) of_platform_depopulate()
  2) of_overlay_remove()

During the step 1, devices are destroyed and devlinks are removed.
During the step 2, OF nodes are destroyed but
__of_changeset_entry_destroy() can raise warnings related to missing
of_node_put():
  ERROR: memory leak, expected refcount 1 instead of 2 ...

Indeed, during the devlink removals performed at step 1, the removal
itself releasing the device (and the attached of_node) is done by a job
queued in a workqueue and so, it is done asynchronously with respect to
function calls.
When the warning is present, of_node_put() will be called but wrongly
too late from the workqueue job.

In order to be sure that any ongoing devlink removals are done before
the of_node destruction, synchronize the of_changeset_destroy() with the
devlink removals.

Fixes: 80dd33cf72 ("drivers: base: Fix device link removal")
Cc: stable@vger.kernel.org
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240325152140.198219-3-herve.codina@bootlin.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-26 15:32:32 -05:00
Linus Torvalds
241590e5a1 Driver core changes for 6.9-rc1
Here is the "big" set of driver core and kernfs changes for 6.9-rc1.
 
 Nothing all that crazy here, just some good updates that include:
   - automatic attribute group hiding from Dan Williams (he fixed up my
     horrible attempt at doing this.)
   - kobject lock contention fixes from Eric Dumazet
   - driver core cleanups from Andy
   - kernfs rcu work from Tejun
   - fw_devlink changes to resolve some reported issues
   - other minor changes, all details in the shortlog
 
 All of these have been in linux-next for a long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the "big" set of driver core and kernfs changes for 6.9-rc1.

  Nothing all that crazy here, just some good updates that include:

   - automatic attribute group hiding from Dan Williams (he fixed up my
     horrible attempt at doing this.)

   - kobject lock contention fixes from Eric Dumazet

   - driver core cleanups from Andy

   - kernfs rcu work from Tejun

   - fw_devlink changes to resolve some reported issues

   - other minor changes, all details in the shortlog

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

* tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (28 commits)
  device: core: Log warning for devices pending deferred probe on timeout
  driver: core: Use dev_* instead of pr_* so device metadata is added
  driver: core: Log probe failure as error and with device metadata
  of: property: fw_devlink: Add support for "post-init-providers" property
  driver core: Add FWLINK_FLAG_IGNORE to completely ignore a fwnode link
  driver core: Adds flags param to fwnode_link_add()
  debugfs: fix wait/cancellation handling during remove
  device property: Don't use "proxy" headers
  device property: Move enum dev_dma_attr to fwnode.h
  driver core: Move fw_devlink stuff to where it belongs
  driver core: Drop unneeded 'extern' keyword in fwnode.h
  firmware_loader: Suppress warning on FW_OPT_NO_WARN flag
  sysfs:Addresses documentation in sysfs_merge_group and sysfs_unmerge_group.
  firmware_loader: introduce __free() cleanup hanler
  platform-msi: Remove usage of the deprecated ida_simple_xx() API
  sysfs: Introduce DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE()
  sysfs: Document new "group visible" helpers
  sysfs: Fix crash on empty group attributes array
  sysfs: Introduce a mechanism to hide static attribute_groups
  sysfs: Introduce a mechanism to hide static attribute_groups
  ...
2024-03-21 13:34:15 -07:00
Linus Torvalds
bb41fe35dc Char/Misc and other driver subsystem updates for 6.9-rc1
Here is the big set of char/misc and a number of other driver subsystem
 updates for 6.9-rc1.  Included in here are:
   - IIO driver updates, loads of new ones and evolution of existing ones
   - coresight driver updates
   - const cleanups for many driver subsystems
   - speakup driver additions
   - platform remove callback void cleanups
   - mei driver updates
   - mhi driver updates
   - cdx driver updates for MSI interrupt handling
   - nvmem driver updates
   - other smaller driver updates and cleanups, full details in the
     shortlog
 
 All of these have been in linux-next for a long time with no reported
 issue, other than a build warning with some older versions of gcc for a
 speakup driver, fix for that will come in a few days when I catch up
 with my pending patch queues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver subsystem updates from Greg KH:
 "Here is the big set of char/misc and a number of other driver
  subsystem updates for 6.9-rc1. Included in here are:

   - IIO driver updates, loads of new ones and evolution of existing ones

   - coresight driver updates

   - const cleanups for many driver subsystems

   - speakup driver additions

   - platform remove callback void cleanups

   - mei driver updates

   - mhi driver updates

   - cdx driver updates for MSI interrupt handling

   - nvmem driver updates

   - other smaller driver updates and cleanups, full details in the
    shortlog

  All of these have been in linux-next for a long time with no reported
  issue, other than a build warning for the speakup driver"

The build warning hits clang and is a gcc (and C23) extension, and is
fixed up in the merge.

Link: https://lore.kernel.org/all/20240321134831.GA2762840@dev-arch.thelio-3990X/

* tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (279 commits)
  binder: remove redundant variable page_addr
  uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion
  uio_pruss: UIO_MEM_DMA_COHERENT conversion
  cnic,bnx2,bnx2x: use UIO_MEM_DMA_COHERENT
  uio: introduce UIO_MEM_DMA_COHERENT type
  cdx: add MSI support for CDX bus
  pps: use cflags-y instead of EXTRA_CFLAGS
  speakup: Add /dev/synthu device
  speakup: Fix 8bit characters from direct synth
  parport: sunbpp: Convert to platform remove callback returning void
  parport: amiga: Convert to platform remove callback returning void
  char: xillybus: Convert to platform remove callback returning void
  vmw_balloon: change maintainership
  MAINTAINERS: change the maintainer for hpilo driver
  char: xilinx_hwicap: Fix NULL vs IS_ERR() bug
  hpet: remove hpets::hp_clocksource
  platform: goldfish: move the separate 'default' propery for CONFIG_GOLDFISH
  char: xilinx_hwicap: drop casting to void in dev_set_drvdata
  greybus: move is_gb_* functions out of greybus.h
  greybus: Remove usage of the deprecated ida_simple_xx() API
  ...
2024-03-21 13:21:31 -07:00
Linus Torvalds
66a27abac3 powerpc updates for 6.9
- Add AT_HWCAP3 and AT_HWCAP4 aux vector entries for future use by glibc.
 
  - Add support for recognising the Power11 architected and raw PVRs.
 
  - Add support for nr_cpus=n on the command line where the boot CPU is >= n.
 
  - Add ppcxx_allmodconfig targets for all 32-bit sub-arches.
 
  - Other small features, cleanups and fixes.
 
 Thanks to: Akanksha J N, Brian King, Christophe Leroy, Dawei Li, Geoff Levand,
 Greg Kroah-Hartman, Jan-Benedict Glaw, Kajol Jain, Kunwu Chan, Li zeming,
 Madhavan Srinivasan, Masahiro Yamada, Nathan Chancellor, Nicholas Piggin, Peter
 Bergner, Qiheng Lin, Randy Dunlap, Ricardo B. Marliere, Rob Herring, Sathvika
 Vasireddy, Shrikanth Hegde, Uwe Kleine-König, Vaibhav Jain, Wen Xiong.
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Merge tag 'powerpc-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add AT_HWCAP3 and AT_HWCAP4 aux vector entries for future use
   by glibc

 - Add support for recognising the Power11 architected and raw PVRs

 - Add support for nr_cpus=n on the command line where the
   boot CPU is >= n

 - Add ppcxx_allmodconfig targets for all 32-bit sub-arches

 - Other small features, cleanups and fixes

Thanks to Akanksha J N, Brian King, Christophe Leroy, Dawei Li, Geoff
Levand, Greg Kroah-Hartman, Jan-Benedict Glaw, Kajol Jain, Kunwu Chan,
Li zeming, Madhavan Srinivasan, Masahiro Yamada, Nathan Chancellor,
Nicholas Piggin, Peter Bergner, Qiheng Lin, Randy Dunlap, Ricardo B.
Marliere, Rob Herring, Sathvika Vasireddy, Shrikanth Hegde, Uwe
Kleine-König, Vaibhav Jain, and Wen Xiong.

* tag 'powerpc-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (71 commits)
  powerpc/macio: Make remove callback of macio driver void returned
  powerpc/83xx: Fix build failure with FPU=n
  powerpc/64s: Fix get_hugepd_cache_index() build failure
  powerpc/4xx: Fix warp_gpio_leds build failure
  powerpc/amigaone: Make several functions static
  powerpc/embedded6xx: Fix no previous prototype for avr_uart_send() etc.
  macintosh/adb: make adb_dev_class constant
  powerpc: xor_vmx: Add '-mhard-float' to CFLAGS
  powerpc/fsl: Fix mfpmr() asm constraint error
  powerpc: Remove cpu-as-y completely
  powerpc/fsl: Modernise mt/mfpmr
  powerpc/fsl: Fix mfpmr build errors with newer binutils
  powerpc/64s: Use .machine power4 around dcbt
  powerpc/64s: Move dcbt/dcbtst sequence into a macro
  powerpc/mm: Code cleanup for __hash_page_thp
  powerpc/hv-gpci: Fix the H_GET_PERF_COUNTER_INFO hcall return value checks
  powerpc/irq: Allow softirq to hardirq stack transition
  powerpc: Stop using of_root
  powerpc/machdep: Define 'compatibles' property in ppc_md and use it
  of: Reimplement of_machine_is_compatible() using of_machine_compatible_match()
  ...
2024-03-15 17:53:48 -07:00
Linus Torvalds
ab522e1478 Devicetree updates for v6.9:
DT core:
 
 - Add cleanup.h based auto release of struct device_node pointers via
   __free marking and new for_each_child_of_node_scoped() iterator to use
   it.
 
 - Always create a base skeleton DT when CONFIG_OF is enabled. This
   supports several usecases of adding DT data on non-DT booted systems.
 
 - Move around some /reserved-memory code in preparation for further
   improvements
 
 - Add a stub for_each_property_of_node() for !OF
 
 - Adjust the printk levels on some messages
 
 - Fix __be32 sparse warning
 
 - Drop RESERVEDMEM_OF_DECLARE usage from Freescale qbman driver
   (currently orphaned)
 
 - Add Saravana Kannan and drop Frank Rowand as DT maintainers
 
 DT bindings:
 
 - Convert Mediatek timer, Mediatek sysirq, fsl,imx6ul-tsc,
   fsl,imx6ul-pinctrl, Atmel AIC, Atmel HLCDC, FPGA region, and
   xlnx,sd-fec to DT schemas
 
 - Add existing, but undocumented fsl,imx-anatop binding
 
 - Add bunch of undocumented vendor prefixes used in compatible strings
 
 - Drop obsolete brcm,bcm2835-pm-wdt binding
 
 - Drop obsolete i2c.txt which as been replaced with schema in dtschema
 
 - Add DPS310 device and sort trivial-devices.yaml
 
 - Enable undocumented compatible checks on DT binding examples
 
 - More QCom maintainer fixes/updates
 
 - Updates to writing-schema.rst and DT submitting-patches.rst to cover
   some frequent review comments
 
 - Clean-up SPDX tags to use 'OR' rather than 'or'
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Merge tag 'devicetree-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT core:

   - Add cleanup.h based auto release of struct device_node pointers via
     __free marking and new for_each_child_of_node_scoped() iterator to
     use it.

   - Always create a base skeleton DT when CONFIG_OF is enabled. This
     supports several usecases of adding DT data on non-DT booted
     systems.

   - Move around some /reserved-memory code in preparation for further
     improvements

   - Add a stub for_each_property_of_node() for !OF

   - Adjust the printk levels on some messages

   - Fix __be32 sparse warning

   - Drop RESERVEDMEM_OF_DECLARE usage from Freescale qbman driver
     (currently orphaned)

   - Add Saravana Kannan and drop Frank Rowand as DT maintainers

  DT bindings:

   - Convert Mediatek timer, Mediatek sysirq, fsl,imx6ul-tsc,
     fsl,imx6ul-pinctrl, Atmel AIC, Atmel HLCDC, FPGA region, and
     xlnx,sd-fec to DT schemas

   - Add existing, but undocumented fsl,imx-anatop binding

   - Add bunch of undocumented vendor prefixes used in compatible
     strings

   - Drop obsolete brcm,bcm2835-pm-wdt binding

   - Drop obsolete i2c.txt which as been replaced with schema in
     dtschema

   - Add DPS310 device and sort trivial-devices.yaml

   - Enable undocumented compatible checks on DT binding examples

   - More QCom maintainer fixes/updates

   - Updates to writing-schema.rst and DT submitting-patches.rst to
     cover some frequent review comments

   - Clean-up SPDX tags to use 'OR' rather than 'or'"

* tag 'devicetree-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (56 commits)
  dt-bindings: soc: imx: fsl,imx-anatop: add imx6q regulators
  of: unittest: Use for_each_child_of_node_scoped()
  of: Introduce for_each_*_child_of_node_scoped() to automate of_node_put() handling
  of: Add cleanup.h based auto release via __free(device_node) markings
  of: Move all FDT reserved-memory handling into of_reserved_mem.c
  of: Add KUnit test to confirm DTB is loaded
  of: unittest: treat missing of_root as error instead of fixing up
  x86/of: Unconditionally call unflatten_and_copy_device_tree()
  um: Unconditionally call unflatten_device_tree()
  of: Create of_root if no dtb provided by firmware
  of: Always unflatten in unflatten_and_copy_device_tree()
  dt-bindings: timer: mediatek: Convert to json-schema
  dt-bindings: interrupt-controller: fsl,intmux: Include power-domains support
  soc: fsl: qbman: Remove RESERVEDMEM_OF_DECLARE usage
  dt-bindings: fsl-imx-sdma: fix HDMI audio index
  dt-bindings: soc: imx: fsl,imx-iomuxc-gpr: add imx6
  dt-bindings: soc: imx: fsl,imx-anatop: add binding
  dt-bindings: input: touchscreen: fsl,imx6ul-tsc convert to YAML
  dt-bindings: pinctrl: fsl,imx6ul-pinctrl: convert to YAML
  of: make for_each_property_of_node() available to to !OF
  ...
2024-03-15 12:37:59 -07:00
Linus Torvalds
6dff52b828 Not a ton of stuff happening in the clk framework in this pull request. We got
some more devm helpers and we seem to be going in the direction of "just turn
 this stuff on already and leave me alone!" with the addition of a
 devm_clk_bulk_get_all_enable() API. I'm hoping that we can make that into a
 genpd that drivers attach instead, but this API should help drivers simplify in
 the meantime.
 
 Outside of the devm wrappers, we've got the usual clk driver updates that are
 dominated by the major phone SoC vendors (Samsung and Qualcomm) and the
 non-critical driver fixes for things like incorrect topology descriptions and
 wrong registers or bit fields. More details are below, but I'd say that it
 looks pretty ordinary. The only thing that really jumps out at me is the
 Renesas clk driver that's ignoring clks that are assigned to remote processors
 in DeviceTree. That's a new feature that they're using to avoid marking clks as
 CLK_IGNORE_UNUSED based on the configuration of the system.
 
 Core:
  - Increase dev_id len for clkdev lookups
  - Add a devm_clk_bulk_get_all_enable() API to get and enable all clks
    for a device
  - Add a devm variant of clk_rate_exclusive_get()
 
 New Drivers:
  - Display, TCSR, GPU, and Camera clock controllers for Qualcomm's X1 Elite SoC
  - Google GS101 PERIC0 and PERIC1 clock controllers
  - Exynos850 PDMA clocks
  - Exynos850 CPU cluster 0 and 1 (CMU_CPUCLK0/CMU_CPUCLK1) clock controllers
 
 Removed Drivers:
  - Remove the unused Qualcomm sc7180 modem clk driver
 
 Updates:
  - Fix some static checker errors in the Hisilicon clk driver
  - Polarfire MSSPLL hardware has 4 output clocks (the driver supported
    previously only one output); each of these 4 outputs feed dividers and the
    output of each divider feed individual hardware blocks (e.g. CAN, Crypto,
    eMMC); individual hardware block drivers need to control their clocks thus
    clock driver support was added for all MSSPLL output clocks
  - Typo fixes in the Qualcomm IPQ5018 GCC driver
  - Add "qdss_at" clk on Qualcomm IPQ6018, needed for WiFi
  - Properly terminate frequency tables in different Qualcomm clk drivers
  - Add MDSS, crypto, and SDCC resets on Qualcomm MSM8953
  - Add missing UFS CLKREF clks on Qualcomm SC8180X
  - Avoid significant delays during boot by adding a softdep on rpmhpd to
    Qualcomm SDM845 gcc driver
  - Add QUPv3 RCGS w/ DFS and video resets to Qualcomm SM8150 GCC driver
  - Fix the custom GPU GX "do-nothing" method in the Qualcomm GDSC driver
  - Add an external regulator to GX GDSC on Qualcomm SC8280XP GPU clk driver
  - Switch display, GPU, video, and camera Qualcomm clk drivers to
    module_platform_driver()
  - Set a longer delay for Venus resets on many Qualcomm SoCs
  - Correct the GDSC wait times in the Qualcomm SDM845 display clk driver
  - Fix clock listing Oops on Amlogic axg
  - New pll-rate for Rockchip rk3568
  - i2s rate improvements for Rockchip rk3399
  - Rockchip rk3588 syscon clock fixes and removal of overall clock-number from
    the rk3588 binding header
  - A prerequisite for later improvements to the Rockchip rk3588 linked clocks
  - Minor clean-ups and error handling improvements in both composite-8m and SCU
    i.MX clock drivers
  - Fix for SAI_MCLK_SEL definition for i.MX8MP
  - Register the Samsung CMU MISC clock controller earlier, so the Multi Core
    Timer clocksource can use it on Google GS101
  - Propagate Exynos850 SPI IPCLK rate change to parents, so the SPI will get
    proper clock rates
  - Refactor the generic Samsung CPU clock controllers code, preparing it for
    supporting Exynos850 CPU clocks
  - Fix some clk kerneldoc warnings
  - Add Ethernet, SDHI, DMA, and HyperFLASH/QSPI (RPC-IF) clocks on Renesas
    R-Car V4M
  - Ignore all clocks which are assigned to a non-Linux system in the Renesas
    clk driver
  - Add watchdog clock on Renesas RZ/G3S
  - Add camera (CRU) clock and reset on Renesas RZ/G2UL
  - Add support for the Renesas R-Car V4M (R8A779H0) SoC
  - Convert some clk bindings to YAML so they can be validated
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "Not a ton of stuff happening in the clk framework. We got some more
  devm helpers and we seem to be going in the direction of "just turn
  this stuff on already and leave me alone!" with the addition of a
  devm_clk_bulk_get_all_enable() API. I'm hoping that we can make that
  into a pmdomain that drivers attach instead, but this API should help
  drivers simplify in the meantime.

  Outside of the devm wrappers, we've got the usual clk driver updates
  that are dominated by the major phone SoC vendors (Samsung and
  Qualcomm) and the non-critical driver fixes for things like incorrect
  topology descriptions and wrong registers or bit fields. More details
  are below, but I'd say that it looks pretty ordinary. The only thing
  that really jumps out at me is the Renesas clk driver that's ignoring
  clks that are assigned to remote processors in DeviceTree. That's a
  new feature that they're using to avoid marking clks as
  CLK_IGNORE_UNUSED based on the configuration of the system.

  Core:
   - Increase dev_id len for clkdev lookups
   - Add a devm_clk_bulk_get_all_enable() API to get and enable all clks
     for a device
   - Add a devm variant of clk_rate_exclusive_get()

  New Drivers:
   - Display, TCSR, GPU, and Camera clock controllers for Qualcomm's X1
     Elite SoC
   - Google GS101 PERIC0 and PERIC1 clock controllers
   - Exynos850 PDMA clocks
   - Exynos850 CPU cluster 0 and 1 (CMU_CPUCLK0/CMU_CPUCLK1) clock
     controllers

  Removed Drivers:
   - Remove the unused Qualcomm sc7180 modem clk driver

  Updates:
   - Fix some static checker errors in the Hisilicon clk driver
   - Polarfire MSSPLL hardware has 4 output clocks (the driver supported
     previously only one output); each of these 4 outputs feed dividers
     and the output of each divider feed individual hardware blocks
     (e.g. CAN, Crypto, eMMC); individual hardware block drivers need to
     control their clocks thus clock driver support was added for all
     MSSPLL output clocks
   - Typo fixes in the Qualcomm IPQ5018 GCC driver
   - Add "qdss_at" clk on Qualcomm IPQ6018, needed for WiFi
   - Properly terminate frequency tables in different Qualcomm clk
     drivers
   - Add MDSS, crypto, and SDCC resets on Qualcomm MSM8953
   - Add missing UFS CLKREF clks on Qualcomm SC8180X
   - Avoid significant delays during boot by adding a softdep on rpmhpd
     to Qualcomm SDM845 gcc driver
   - Add QUPv3 RCGS w/ DFS and video resets to Qualcomm SM8150 GCC
     driver
   - Fix the custom GPU GX "do-nothing" method in the Qualcomm GDSC
     driver
   - Add an external regulator to GX GDSC on Qualcomm SC8280XP GPU clk
     driver
   - Switch display, GPU, video, and camera Qualcomm clk drivers to
     module_platform_driver()
   - Set a longer delay for Venus resets on many Qualcomm SoCs
   - Correct the GDSC wait times in the Qualcomm SDM845 display clk
     driver
   - Fix clock listing Oops on Amlogic axg
   - New pll-rate for Rockchip rk3568
   - i2s rate improvements for Rockchip rk3399
   - Rockchip rk3588 syscon clock fixes and removal of overall
     clock-number from the rk3588 binding header
   - A prerequisite for later improvements to the Rockchip rk3588 linked
     clocks
   - Minor clean-ups and error handling improvements in both
     composite-8m and SCU i.MX clock drivers
   - Fix for SAI_MCLK_SEL definition for i.MX8MP
   - Register the Samsung CMU MISC clock controller earlier, so the
     Multi Core Timer clocksource can use it on Google GS101
   - Propagate Exynos850 SPI IPCLK rate change to parents, so the SPI
     will get proper clock rates
   - Refactor the generic Samsung CPU clock controllers code, preparing
     it for supporting Exynos850 CPU clocks
   - Fix some clk kerneldoc warnings
   - Add Ethernet, SDHI, DMA, and HyperFLASH/QSPI (RPC-IF) clocks on
     Renesas R-Car V4M
   - Ignore all clocks which are assigned to a non-Linux system in the
     Renesas clk driver
   - Add watchdog clock on Renesas RZ/G3S
   - Add camera (CRU) clock and reset on Renesas RZ/G2UL
   - Add support for the Renesas R-Car V4M (R8A779H0) SoC
   - Convert some clk bindings to YAML so they can be validated"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (150 commits)
  clk: zynq: Prevent null pointer dereference caused by kmalloc failure
  clk: fractional-divider: Use bit operations consistently
  clk: fractional-divider: Move mask calculations out of lock
  clk: Fix clk_core_get NULL dereference
  clk: starfive: jh7110-vout: Convert to platform remove callback returning void
  clk: starfive: jh7110-isp: Convert to platform remove callback returning void
  clk: imx: imx8-acm: Convert to platform remove callback returning void
  clk: qcom: gcc-ipq5018: fix register offset for GCC_UBI0_AXI_ARES reset
  clk: qcom: gcc-ipq5018: fix 'halt_reg' offset of 'gcc_pcie1_pipe_clk'
  clk: qcom: gcc-ipq5018: fix 'enable_reg' offset of 'gcc_gmac0_sys_clk'
  clk: qcom: camcc-x1e80100: Fix missing DT_IFACE enum in x1e80100 camcc
  clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays
  clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
  clk: qcom: camcc-sc8280xp: fix terminating of frequency table arrays
  clk: qcom: gcc-ipq9574: fix terminating of frequency table arrays
  clk: qcom: gcc-ipq8074: fix terminating of frequency table arrays
  clk: qcom: gcc-ipq6018: fix terminating of frequency table arrays
  clk: qcom: gcc-ipq5018: fix terminating of frequency table arrays
  clk: mediatek: clk-mt8173-apmixedsys: Use common error handling code in clk_mt8173_apmixed_probe()
  clk: Add a devm variant of clk_rate_exclusive_get()
  ...
2024-03-15 11:48:01 -07:00
Linus Torvalds
902861e34c - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames
from hotplugged memory rather than only from main memory.  Series
   "implement "memmap on memory" feature on s390".
 
 - More folio conversions from Matthew Wilcox in the series
 
 	"Convert memcontrol charge moving to use folios"
 	"mm: convert mm counter to take a folio"
 
 - Chengming Zhou has optimized zswap's rbtree locking, providing
   significant reductions in system time and modest but measurable
   reductions in overall runtimes.  The series is "mm/zswap: optimize the
   scalability of zswap rb-tree".
 
 - Chengming Zhou has also provided the series "mm/zswap: optimize zswap
   lru list" which provides measurable runtime benefits in some
   swap-intensive situations.
 
 - And Chengming Zhou further optimizes zswap in the series "mm/zswap:
   optimize for dynamic zswap_pools".  Measured improvements are modest.
 
 - zswap cleanups and simplifications from Yosry Ahmed in the series "mm:
   zswap: simplify zswap_swapoff()".
 
 - In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
   contributed several DAX cleanups as well as adding a sysfs tunable to
   control the memmap_on_memory setting when the dax device is hotplugged
   as system memory.
 
 - Johannes Weiner has added the large series "mm: zswap: cleanups",
   which does that.
 
 - More DAMON work from SeongJae Park in the series
 
 	"mm/damon: make DAMON debugfs interface deprecation unignorable"
 	"selftests/damon: add more tests for core functionalities and corner cases"
 	"Docs/mm/damon: misc readability improvements"
 	"mm/damon: let DAMOS feeds and tame/auto-tune itself"
 
 - In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
   extension" Rakie Kim has developed a new mempolicy interleaving policy
   wherein we allocate memory across nodes in a weighted fashion rather
   than uniformly.  This is beneficial in heterogeneous memory environments
   appearing with CXL.
 
 - Christophe Leroy has contributed some cleanup and consolidation work
   against the ARM pagetable dumping code in the series "mm: ptdump:
   Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".
 
 - Luis Chamberlain has added some additional xarray selftesting in the
   series "test_xarray: advanced API multi-index tests".
 
 - Muhammad Usama Anjum has reworked the selftest code to make its
   human-readable output conform to the TAP ("Test Anything Protocol")
   format.  Amongst other things, this opens up the use of third-party
   tools to parse and process out selftesting results.
 
 - Ryan Roberts has added fork()-time PTE batching of THP ptes in the
   series "mm/memory: optimize fork() with PTE-mapped THP".  Mainly
   targeted at arm64, this significantly speeds up fork() when the process
   has a large number of pte-mapped folios.
 
 - David Hildenbrand also gets in on the THP pte batching game in his
   series "mm/memory: optimize unmap/zap with PTE-mapped THP".  It
   implements batching during munmap() and other pte teardown situations.
   The microbenchmark improvements are nice.
 
 - And in the series "Transparent Contiguous PTEs for User Mappings" Ryan
   Roberts further utilizes arm's pte's contiguous bit ("contpte
   mappings").  Kernel build times on arm64 improved nicely.  Ryan's series
   "Address some contpte nits" provides some followup work.
 
 - In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
   fixed an obscure hugetlb race which was causing unnecessary page faults.
   He has also added a reproducer under the selftest code.
 
 - In the series "selftests/mm: Output cleanups for the compaction test",
   Mark Brown did what the title claims.
 
 - Kinsey Ho has added the series "mm/mglru: code cleanup and refactoring".
 
 - Even more zswap material from Nhat Pham.  The series "fix and extend
   zswap kselftests" does as claimed.
 
 - In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
   regression" Mathieu Desnoyers has cleaned up and fixed rather a mess in
   our handling of DAX on archiecctures which have virtually aliasing data
   caches.  The arm architecture is the main beneficiary.
 
 - Lokesh Gidra's series "per-vma locks in userfaultfd" provides dramatic
   improvements in worst-case mmap_lock hold times during certain
   userfaultfd operations.
 
 - Some page_owner enhancements and maintenance work from Oscar Salvador
   in his series
 
 	"page_owner: print stacks and their outstanding allocations"
 	"page_owner: Fixup and cleanup"
 
 - Uladzislau Rezki has contributed some vmalloc scalability improvements
   in his series "Mitigate a vmap lock contention".  It realizes a 12x
   improvement for a certain microbenchmark.
 
 - Some kexec/crash cleanup work from Baoquan He in the series "Split
   crash out from kexec and clean up related config items".
 
 - Some zsmalloc maintenance work from Chengming Zhou in the series
 
 	"mm/zsmalloc: fix and optimize objects/page migration"
 	"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"
 
 - Zi Yan has taught the MM to perform compaction on folios larger than
   order=0.  This a step along the path to implementaton of the merging of
   large anonymous folios.  The series is named "Enable >0 order folio
   memory compaction".
 
 - Christoph Hellwig has done quite a lot of cleanup work in the
   pagecache writeback code in his series "convert write_cache_pages() to
   an iterator".
 
 - Some modest hugetlb cleanups and speedups in Vishal Moola's series
   "Handle hugetlb faults under the VMA lock".
 
 - Zi Yan has changed the page splitting code so we can split huge pages
   into sizes other than order-0 to better utilize large folios.  The
   series is named "Split a folio to any lower order folios".
 
 - David Hildenbrand has contributed the series "mm: remove
   total_mapcount()", a cleanup.
 
 - Matthew Wilcox has sought to improve the performance of bulk memory
   freeing in his series "Rearrange batched folio freeing".
 
 - Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
   provides large improvements in bootup times on large machines which are
   configured to use large numbers of hugetlb pages.
 
 - Matthew Wilcox's series "PageFlags cleanups" does that.
 
 - Qi Zheng's series "minor fixes and supplement for ptdesc" does that
   also.  S390 is affected.
 
 - Cleanups to our pagemap utility functions from Peter Xu in his series
   "mm/treewide: Replace pXd_large() with pXd_leaf()".
 
 - Nico Pache has fixed a few things with our hugepage selftests in his
   series "selftests/mm: Improve Hugepage Test Handling in MM Selftests".
 
 - Also, of course, many singleton patches to many things.  Please see
   the individual changelogs for details.
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Merge tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames
   from hotplugged memory rather than only from main memory. Series
   "implement "memmap on memory" feature on s390".

 - More folio conversions from Matthew Wilcox in the series

	"Convert memcontrol charge moving to use folios"
	"mm: convert mm counter to take a folio"

 - Chengming Zhou has optimized zswap's rbtree locking, providing
   significant reductions in system time and modest but measurable
   reductions in overall runtimes. The series is "mm/zswap: optimize the
   scalability of zswap rb-tree".

 - Chengming Zhou has also provided the series "mm/zswap: optimize zswap
   lru list" which provides measurable runtime benefits in some
   swap-intensive situations.

 - And Chengming Zhou further optimizes zswap in the series "mm/zswap:
   optimize for dynamic zswap_pools". Measured improvements are modest.

 - zswap cleanups and simplifications from Yosry Ahmed in the series
   "mm: zswap: simplify zswap_swapoff()".

 - In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
   contributed several DAX cleanups as well as adding a sysfs tunable to
   control the memmap_on_memory setting when the dax device is
   hotplugged as system memory.

 - Johannes Weiner has added the large series "mm: zswap: cleanups",
   which does that.

 - More DAMON work from SeongJae Park in the series

	"mm/damon: make DAMON debugfs interface deprecation unignorable"
	"selftests/damon: add more tests for core functionalities and corner cases"
	"Docs/mm/damon: misc readability improvements"
	"mm/damon: let DAMOS feeds and tame/auto-tune itself"

 - In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
   extension" Rakie Kim has developed a new mempolicy interleaving
   policy wherein we allocate memory across nodes in a weighted fashion
   rather than uniformly. This is beneficial in heterogeneous memory
   environments appearing with CXL.

 - Christophe Leroy has contributed some cleanup and consolidation work
   against the ARM pagetable dumping code in the series "mm: ptdump:
   Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".

 - Luis Chamberlain has added some additional xarray selftesting in the
   series "test_xarray: advanced API multi-index tests".

 - Muhammad Usama Anjum has reworked the selftest code to make its
   human-readable output conform to the TAP ("Test Anything Protocol")
   format. Amongst other things, this opens up the use of third-party
   tools to parse and process out selftesting results.

 - Ryan Roberts has added fork()-time PTE batching of THP ptes in the
   series "mm/memory: optimize fork() with PTE-mapped THP". Mainly
   targeted at arm64, this significantly speeds up fork() when the
   process has a large number of pte-mapped folios.

 - David Hildenbrand also gets in on the THP pte batching game in his
   series "mm/memory: optimize unmap/zap with PTE-mapped THP". It
   implements batching during munmap() and other pte teardown
   situations. The microbenchmark improvements are nice.

 - And in the series "Transparent Contiguous PTEs for User Mappings"
   Ryan Roberts further utilizes arm's pte's contiguous bit ("contpte
   mappings"). Kernel build times on arm64 improved nicely. Ryan's
   series "Address some contpte nits" provides some followup work.

 - In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
   fixed an obscure hugetlb race which was causing unnecessary page
   faults. He has also added a reproducer under the selftest code.

 - In the series "selftests/mm: Output cleanups for the compaction
   test", Mark Brown did what the title claims.

 - Kinsey Ho has added the series "mm/mglru: code cleanup and
   refactoring".

 - Even more zswap material from Nhat Pham. The series "fix and extend
   zswap kselftests" does as claimed.

 - In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
   regression" Mathieu Desnoyers has cleaned up and fixed rather a mess
   in our handling of DAX on archiecctures which have virtually aliasing
   data caches. The arm architecture is the main beneficiary.

 - Lokesh Gidra's series "per-vma locks in userfaultfd" provides
   dramatic improvements in worst-case mmap_lock hold times during
   certain userfaultfd operations.

 - Some page_owner enhancements and maintenance work from Oscar Salvador
   in his series

	"page_owner: print stacks and their outstanding allocations"
	"page_owner: Fixup and cleanup"

 - Uladzislau Rezki has contributed some vmalloc scalability
   improvements in his series "Mitigate a vmap lock contention". It
   realizes a 12x improvement for a certain microbenchmark.

 - Some kexec/crash cleanup work from Baoquan He in the series "Split
   crash out from kexec and clean up related config items".

 - Some zsmalloc maintenance work from Chengming Zhou in the series

	"mm/zsmalloc: fix and optimize objects/page migration"
	"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"

 - Zi Yan has taught the MM to perform compaction on folios larger than
   order=0. This a step along the path to implementaton of the merging
   of large anonymous folios. The series is named "Enable >0 order folio
   memory compaction".

 - Christoph Hellwig has done quite a lot of cleanup work in the
   pagecache writeback code in his series "convert write_cache_pages()
   to an iterator".

 - Some modest hugetlb cleanups and speedups in Vishal Moola's series
   "Handle hugetlb faults under the VMA lock".

 - Zi Yan has changed the page splitting code so we can split huge pages
   into sizes other than order-0 to better utilize large folios. The
   series is named "Split a folio to any lower order folios".

 - David Hildenbrand has contributed the series "mm: remove
   total_mapcount()", a cleanup.

 - Matthew Wilcox has sought to improve the performance of bulk memory
   freeing in his series "Rearrange batched folio freeing".

 - Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
   provides large improvements in bootup times on large machines which
   are configured to use large numbers of hugetlb pages.

 - Matthew Wilcox's series "PageFlags cleanups" does that.

 - Qi Zheng's series "minor fixes and supplement for ptdesc" does that
   also. S390 is affected.

 - Cleanups to our pagemap utility functions from Peter Xu in his series
   "mm/treewide: Replace pXd_large() with pXd_leaf()".

 - Nico Pache has fixed a few things with our hugepage selftests in his
   series "selftests/mm: Improve Hugepage Test Handling in MM
   Selftests".

 - Also, of course, many singleton patches to many things. Please see
   the individual changelogs for details.

* tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (435 commits)
  mm/zswap: remove the memcpy if acomp is not sleepable
  crypto: introduce: acomp_is_async to expose if comp drivers might sleep
  memtest: use {READ,WRITE}_ONCE in memory scanning
  mm: prohibit the last subpage from reusing the entire large folio
  mm: recover pud_leaf() definitions in nopmd case
  selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements
  selftests/mm: skip uffd hugetlb tests with insufficient hugepages
  selftests/mm: dont fail testsuite due to a lack of hugepages
  mm/huge_memory: skip invalid debugfs new_order input for folio split
  mm/huge_memory: check new folio order when split a folio
  mm, vmscan: retry kswapd's priority loop with cache_trim_mode off on failure
  mm: add an explicit smp_wmb() to UFFDIO_CONTINUE
  mm: fix list corruption in put_pages_list
  mm: remove folio from deferred split list before uncharging it
  filemap: avoid unnecessary major faults in filemap_fault()
  mm,page_owner: drop unnecessary check
  mm,page_owner: check for null stack_record before bumping its refcount
  mm: swap: fix race between free_swap_and_cache() and swapoff()
  mm/treewide: align up pXd_leaf() retval across archs
  mm/treewide: drop pXd_large()
  ...
2024-03-14 17:43:30 -07:00
Jonathan Cameron
2056b282ad of: unittest: Use for_each_child_of_node_scoped()
A simple example of the utility of this autocleanup approach to
handling of_node_put().

In this particular case some of the nodes needed for the test are
not available and the _available_ version would cause them to be
skipped resulting in a test failure.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240225142714.286440-4-jic23@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-13 16:59:00 -06:00
Rob Herring
54c180e73f of: Move all FDT reserved-memory handling into of_reserved_mem.c
The split of /reserved-memory handling between fdt.c and
of_reserved_mem.c makes for reading and restructuring the code
difficult. As of_reserved_mem.c is only built for
CONFIG_OF_EARLY_FLATTREE already, move all the code to one spot.

Acked-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Oreoluwa Babatunde <quic_obabatun@quicinc.com>
Link: https://lore.kernel.org/r/20240311181303.1516514-2-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-12 09:23:26 -06:00
Stephen Boyd
893ecc6d2d of: Add KUnit test to confirm DTB is loaded
Add a KUnit test that confirms a DTB has been loaded, i.e. there is a
root node, and that the of_have_populated_dt() API works properly. We
skip the test when CONFIG_OF_EARLY_FLATREE=n because in that case we
know architecture code hasn't called unflatten_(and_copy_)?device_tree()
which would populate some sort of root node.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Reviewed-by: David Gow <davidgow@google.com>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-8-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Frank Rowand
d1eabd218e of: unittest: treat missing of_root as error instead of fixing up
unflatten_device_tree() now ensures that the 'of_root' node is populated
with the root of a default empty devicetree. Remove the unittest code
that created 'of_root' if it was missing. Verify that 'of_root' is valid
before attempting to attach the testcase-data subtree. Remove the
unittest code that unflattens the unittest overlay base if architecture
is UML because that is always done now.

Signed-off-by: Frank Rowand <frowand.list@gmail.com>
Link: https://lore.kernel.org/r/20230317053415.2254616-3-frowand.list@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-7-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Stephen Boyd
221a819aa3 um: Unconditionally call unflatten_device_tree()
Call this function unconditionally so that we can populate an empty DTB
on platforms that don't boot with a command line provided DTB.  There's
no harm in calling unflatten_device_tree() unconditionally. If there
isn't a valid initial_boot_params dtb then unflatten_device_tree()
returns early.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-um@lists.infradead.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-4-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Frank Rowand
7b937cc243 of: Create of_root if no dtb provided by firmware
When enabling CONFIG_OF on a platform where 'of_root' is not populated
by firmware, we end up without a root node. In order to apply overlays
and create subnodes of the root node, we need one. Create this root node
by unflattening an empty builtin dtb.

If firmware provides a flattened device tree (FDT) then the FDT is
unflattened via setup_arch(). Otherwise, the call to
unflatten(_and_copy)?_device_tree() will create an empty root node.

We make of_have_populated_dt() return true only if the DTB was loaded by
firmware so that existing callers don't change behavior after this
patch. The call in the of platform code is removed because it prevents
overlays from creating platform devices when the empty root node is
used.

[sboyd@kernel.org: Update of_have_populated_dt() to treat this empty dtb
as not populated. Drop setup_of() initcall]

Signed-off-by: Frank Rowand <frowand.list@gmail.com>
Link: https://lore.kernel.org/r/20230317053415.2254616-2-frowand.list@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-3-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Stephen Boyd
dc1460fe1b of: Always unflatten in unflatten_and_copy_device_tree()
We want to populate an empty DT whenever CONFIG_OF is enabled so that
overlays can be applied and the DT unit tests can be run. Make
unflatten_and_copy_device_tree() stop printing a warning if the
'initial_boot_params' pointer is NULL. Instead, simply copy the dtb if
there is one and then unflatten it. If there isn't a DT to copy, then
the call to unflatten_device_tree() is largely a no-op, so nothing
really changes here.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240217010557.2381548-2-sboyd@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-08 12:50:39 -06:00
Saravana Kannan
135116f3d0 of: property: fw_devlink: Add support for "post-init-providers" property
Add support for this property so that dependency cycles can be broken and
fw_devlink can do better probe/suspend/resume ordering between devices in a
dependency cycle.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-03-07 22:10:01 +00:00
Saravana Kannan
75cde56a5b driver core: Adds flags param to fwnode_link_add()
Allow the callers to set fwnode link flags when adding fwnode links.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-03-07 22:10:01 +00:00
Christophe Leroy
1ac8205f90 of: Reimplement of_machine_is_compatible() using of_machine_compatible_match()
of_machine_compatible_match() works with a table of strings.
of_machine_is_compatible() is a simplier version with only one string.

Re-implement of_machine_is_compatible() by setting a table of strings
with a single string then using of_machine_compatible_match().

Suggested-by: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231214103152.12269-3-mpe@ellerman.id.au
2024-03-03 22:20:29 +11:00
Michael Ellerman
cefdb366dc of: Change of_machine_is_compatible() to return bool
of_machine_is_compatible() currently returns a positive integer if it
finds a match. However none of the callers ever check the value, they
all treat it as a true/false.

So change of_machine_is_compatible() to return bool, which will allow
the implementation to be changed in a subsequent patch.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231214103152.12269-2-mpe@ellerman.id.au
2024-03-03 22:20:29 +11:00
Michael Ellerman
c029b22f8a of: Add of_machine_compatible_match()
We have of_machine_is_compatible() to check if a machine is compatible
with a single compatible string. However some code is able to support
multiple compatible boards, and so wants to check for one of many
compatible strings.

So add of_machine_compatible_match() which takes a NULL terminated
array of compatible strings to check against the root node's
compatible property.

Compared to an open coded match this is slightly more self
documenting, and also avoids the caller needing to juggle the root
node either directly or via of_find_node_by_path().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231214103152.12269-1-mpe@ellerman.id.au
2024-03-03 22:20:29 +11:00
Linus Torvalds
fb54efc293 Devicetree fix for v6.8, part 2:
One fix for a bug in fw_devlink handling of OF graph. This doesn't
 completely fix the reported problems, but it's with users adding out of
 tree code.
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Merge tag 'devicetree-fixes-for-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fix from Rob Herring:
 "One fix for a bug in fw_devlink handling of OF graph. This doesn't
  completely fix the reported problems, but it's with users adding out
  of tree code"

* tag 'devicetree-fixes-for-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: property: fw_devlink: Fix stupid bug in remote-endpoint parsing
2024-03-01 17:18:35 -08:00
Uwe Kleine-König
336157be7e of/platform: Inform about created platform devices using pr_debug()
For most nodes with a compatible property a platform device is created.
For some an amba device is created instead. For the latter
of_amba_device_create() emits a message at debug level about the node
the device is created from. Add a similar message to
of_platform_device_create_pdata() to inform about the whole list of
created devices.

This also gives the right context for the following messages that
inform about created child devices.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240222153119.2026363-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-01 15:53:41 -06:00
Saravana Kannan
7cb50f6c9f of: property: fw_devlink: Fix stupid bug in remote-endpoint parsing
Introduced a stupid bug in commit 782bfd03c3 ("of: property: Improve
finding the supplier of a remote-endpoint property") due to a last minute
incorrect edit of "index !=0" into "!index". This patch fixes it to be
"index > 0" to match the comment right next to it.

Reported-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://lore.kernel.org/lkml/20240223171849.10f9901d@booty/
Fixes: 782bfd03c3 ("of: property: Improve finding the supplier of a remote-endpoint property")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://lore.kernel.org/r/20240224052436.3552333-1-saravanak@google.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-03-01 15:28:17 -06:00
Greg Kroah-Hartman
d4551c189d IIO: 1st set of new device support, features and cleanup for 6.9
IIO Backend support
 ===================
 
 New approach from Nuno Sa to the problem of reuse of drivers with
 IIO devices that are actually the combination of a highspeed chip
 and an FPGA core handling the data capture and flows. It will hopefully
 also apply to some other split designs. The ad9467 and axi-adi drivers
 are converted over to this framework.
 
 New device support
 ==================
 
 adi,admfm2000
 - New driver for this dual microwave down converter.
 ams,as73211
 - Add support for as7331 UV sensor.
 richtek,rtq6056
 - Add support for related parts RTQ6053 and RTQ6059
 st,lsm6dsx
 - Add ASM330LHHXG1 accelerometer and gyro support (mainly IDs)
 ti,ads1298
 - New driver for this medical ADC.
 
 Features
 ========
 
 tests
 - Unit tests for the gain-time-scale helper library.
 bosch,bmi088
 - I2C support.
 bosh,bmi160
 - Add 10EC5280 ACPI ID. Used in a number of devices that won't get fixed.
   The ID is actually a PCI ID belonging to realtech. No response was received
   to earlier attempts to notify them of this.
   The manufacturers of some devices have replied to say they will not fix
   this incorrect ID. Add the ID and hope it isn't a problem.
 bosch,bmi323
 - Add BOSC0200 ACPI ID. Note this is a duplicate of one in the bmc150
   driver (it appears these parts share a windows driver).
   Both drivers perform an ID check that is safe on the other part before
   successfully probing.
 hid-sensors-als
 - Add color temperature and chromaticity support. Note this is a replacement
   for the series reverted in 6.8 that correctly handles all the potential
   channel combinations.
 honeywell,hsc030pa
 - Triggered buffer support (after driver cleanup).
 honeywell,mprls00025pa
 - Improved error handling.
 - New DT binding to allow use of part number triplet as provided in data sheet
   to specify equivalent of most of the binding more efficiently.
 - SPI support.
 memsic,mxc4005
 - ACPI ID MDA6655 as seen in the Chuwi Minibook X 2023
 ti,hdc3020
 - Add threshold event support (after some driver cleanup)
 veml,vcnl4000
 - Switch to high resolution proximity measurement.
 
 Cleanup
 =======
 Various minor typo fixes and better use of defines etc.
 
 Treewide
 - Stop using ACPI_PTR(). The savings in space are small and not worth
   the complexity of __maybe_unused of ifdef guards.  To avoid use in
   new IIO drivers based on copy and paste, clean it out.
 - cleanup.h based handling of iio_device_claim_direct_mode()/
   iio_device_release_direct_mode() using scope_cond_guard().
   In many drivers this is combined with other automated cleanup
   to give maximum simplifications.
   An initial set of drivers are converted over to this infrastructure.
 
 Tools
 - Use rewinddir() instead of seekdir() to return to start of file.
 
 core
 - Make iio_bus_type constant.
 
 adi,ad16475
 - Use irq_get_trigger_type() instead of opencoding.
 adi,ad16480
 - Use irq_get_trigger_type() instead of opencoding.
 adi,ad-sigma-delta
 - Avoid overwriting IRQ flags if provided by firmware.
 ams,as73211
 - Use IIO_VAL_FRACTIONAL for scales to simplify the code and potentially
   improve accuracy.
 gts-library
 - Use a div64_u64() instead of a loop to do a division.
 honeywell,mprls00025pa
 - Clean up dt-binding doc.
 - Drop defaults when DT binding not providing values. Very unlikely
   these were useful given they were wrong for vast majority of supported
   devices.
 - Whitespace cleanup
 miramems,da280
 - Use i2c_get_match_data() to replace hand rolled ACPI matching code.
 semtech,sx9324
 - Avoid unnecessary copying of property strings.
 st,lsm6dsx
 - Improve docs, particularly wrt to making addition of new device
   support less noisy.
 st,lsm9ds0
 - Use dev_err_probe() in all probe() error handling.
 - Improved header includes.
 - Tidy up termination of ID tables.
 ti,ads1014
 - Correct upper bound on PGA (wrong value had no actual impact)
 ti,afe4403/4404
 - devm_ useage to simplify error handling in probe() and allow() remove to
   be dropped.
 voltage-divider
 - Add dt-binding for io-channel-cells to allow such a device to be both
   an IIO consumer and IIO producer at the same time.
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Merge tag 'iio-for-6.9a' of http://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: 1st set of new device support, features and cleanup for 6.9

IIO Backend support
===================

New approach from Nuno Sa to the problem of reuse of drivers with
IIO devices that are actually the combination of a highspeed chip
and an FPGA core handling the data capture and flows. It will hopefully
also apply to some other split designs. The ad9467 and axi-adi drivers
are converted over to this framework.

New device support
==================

adi,admfm2000
- New driver for this dual microwave down converter.
ams,as73211
- Add support for as7331 UV sensor.
richtek,rtq6056
- Add support for related parts RTQ6053 and RTQ6059
st,lsm6dsx
- Add ASM330LHHXG1 accelerometer and gyro support (mainly IDs)
ti,ads1298
- New driver for this medical ADC.

Features
========

tests
- Unit tests for the gain-time-scale helper library.
bosch,bmi088
- I2C support.
bosh,bmi160
- Add 10EC5280 ACPI ID. Used in a number of devices that won't get fixed.
  The ID is actually a PCI ID belonging to realtech. No response was received
  to earlier attempts to notify them of this.
  The manufacturers of some devices have replied to say they will not fix
  this incorrect ID. Add the ID and hope it isn't a problem.
bosch,bmi323
- Add BOSC0200 ACPI ID. Note this is a duplicate of one in the bmc150
  driver (it appears these parts share a windows driver).
  Both drivers perform an ID check that is safe on the other part before
  successfully probing.
hid-sensors-als
- Add color temperature and chromaticity support. Note this is a replacement
  for the series reverted in 6.8 that correctly handles all the potential
  channel combinations.
honeywell,hsc030pa
- Triggered buffer support (after driver cleanup).
honeywell,mprls00025pa
- Improved error handling.
- New DT binding to allow use of part number triplet as provided in data sheet
  to specify equivalent of most of the binding more efficiently.
- SPI support.
memsic,mxc4005
- ACPI ID MDA6655 as seen in the Chuwi Minibook X 2023
ti,hdc3020
- Add threshold event support (after some driver cleanup)
veml,vcnl4000
- Switch to high resolution proximity measurement.

Cleanup
=======
Various minor typo fixes and better use of defines etc.

Treewide
- Stop using ACPI_PTR(). The savings in space are small and not worth
  the complexity of __maybe_unused of ifdef guards.  To avoid use in
  new IIO drivers based on copy and paste, clean it out.
- cleanup.h based handling of iio_device_claim_direct_mode()/
  iio_device_release_direct_mode() using scope_cond_guard().
  In many drivers this is combined with other automated cleanup
  to give maximum simplifications.
  An initial set of drivers are converted over to this infrastructure.

Tools
- Use rewinddir() instead of seekdir() to return to start of file.

core
- Make iio_bus_type constant.

adi,ad16475
- Use irq_get_trigger_type() instead of opencoding.
adi,ad16480
- Use irq_get_trigger_type() instead of opencoding.
adi,ad-sigma-delta
- Avoid overwriting IRQ flags if provided by firmware.
ams,as73211
- Use IIO_VAL_FRACTIONAL for scales to simplify the code and potentially
  improve accuracy.
gts-library
- Use a div64_u64() instead of a loop to do a division.
honeywell,mprls00025pa
- Clean up dt-binding doc.
- Drop defaults when DT binding not providing values. Very unlikely
  these were useful given they were wrong for vast majority of supported
  devices.
- Whitespace cleanup
miramems,da280
- Use i2c_get_match_data() to replace hand rolled ACPI matching code.
semtech,sx9324
- Avoid unnecessary copying of property strings.
st,lsm6dsx
- Improve docs, particularly wrt to making addition of new device
  support less noisy.
st,lsm9ds0
- Use dev_err_probe() in all probe() error handling.
- Improved header includes.
- Tidy up termination of ID tables.
ti,ads1014
- Correct upper bound on PGA (wrong value had no actual impact)
ti,afe4403/4404
- devm_ useage to simplify error handling in probe() and allow() remove to
  be dropped.
voltage-divider
- Add dt-binding for io-channel-cells to allow such a device to be both
  an IIO consumer and IIO producer at the same time.

* tag 'iio-for-6.9a' of http://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (106 commits)
  iio: imu: bmi323: Add ACPI Match Table
  iio: accel: bmc150: Document duplicate ACPI entries with bmi323 driver
  iio: adc: ti-ads1298: Add driver
  dt-bindings: iio: adc: ti-ads1298: Add bindings
  iio: pressure: hsc030pa add triggered buffer
  iio: pressure: hsc030pa add mandatory delay
  iio: pressure: hsc030pa: update datasheet URLs
  iio: pressure: hsc030pa: include cleanup
  iio: pressure: hsc030pa: use signed type to hold div_64() result
  dt-bindings: iio: pressure: honeywell,hsc030pa.yaml add spi props
  iio: st_sensors: lsm9ds0: Use common style for terminator in ID tables
  iio: st_sensors: lsm9ds0: Don't use "proxy" headers
  iio: st_sensors: lsm9ds0: Use dev_err_probe() everywhere
  iio: adc: adi-axi-adc: move to backend framework
  iio: adc: ad9467: convert to backend framework
  iio: add the IIO backend framework
  iio: buffer-dmaengine: export buffer alloc and free functions
  of: property: add device link support for io-backends
  dt-bindings: adc: axi-adc: update bindings for backend framework
  dt-bindings: adc: ad9467: add new io-backend property
  ...
2024-02-25 14:11:41 +01:00
Baoquan He
40254101d8 arm64, crash: wrap crash dumping code into crash related ifdefs
Now crash codes under kernel/ folder has been split out from kexec
code, crash dumping can be separated from kexec reboot in config
items on arm64 with some adjustments.

Here wrap up crash dumping codes with CONFIG_CRASH_DUMP ifdeffery.

[bhe@redhat.com: fix building error in generic codes]
  Link: https://lkml.kernel.org/r/20240129135033.157195-2-bhe@redhat.com
Link: https://lkml.kernel.org/r/20240124051254.67105-8-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>
Cc: Klara Modin <klarasmodin@gmail.com>
Cc: Michael Kelley <mhklinux@outlook.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-23 17:48:23 -08:00
Olivier Moysan
4b0b159a19 of: property: add device link support for io-backends
Add support for creating device links out of more DT properties.

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240210-iio-backend-v11-3-f5242a5fb42a@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-02-19 19:32:21 +00:00
Linus Torvalds
339e2fca02 Devicetree fixes for v6.8:
- Improve devlink dependency parsing for DT graphs
 
 - Fix devlink handling of io-channels dependencies
 
 - Fix PCI addressing in marvell,prestera example
 
 - A few schema fixes for property constraints
 
 - Improve performance of DT unprobed devices kselftest
 
 - Fix regression in DT_SCHEMA_FILES handling
 
 - Fix compile error in unittest for !OF_DYNAMIC
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Merge tag 'devicetree-fixes-for-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Improve devlink dependency parsing for DT graphs

 - Fix devlink handling of io-channels dependencies

 - Fix PCI addressing in marvell,prestera example

 - A few schema fixes for property constraints

 - Improve performance of DT unprobed devices kselftest

 - Fix regression in DT_SCHEMA_FILES handling

 - Fix compile error in unittest for !OF_DYNAMIC

* tag 'devicetree-fixes-for-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: ufs: samsung,exynos-ufs: Add size constraints on "samsung,sysreg"
  of: property: Add in-ports/out-ports support to of_graph_get_port_parent()
  of: property: Improve finding the supplier of a remote-endpoint property
  of: property: Improve finding the consumer of a remote-endpoint property
  net: marvell,prestera: Fix example PCI bus addressing
  of: unittest: Fix compile in the non-dynamic case
  of: property: fix typo in io-channels
  dt-bindings: tpm: Drop type from "resets"
  dt-bindings: display: nxp,tda998x: Fix 'audio-ports' constraints
  dt-bindings: xilinx: replace Piyush Mehta maintainership
  kselftest: dt: Stop relying on dirname to improve performance
  dt-bindings: don't anchor DT_SCHEMA_FILES to bindings directory
2024-02-15 10:19:55 -08:00
Dawei Li
e72638535d of: Make explicit cpu_to_be32 conversion to mute sparse warning
Kernel test robot reports sparse warning:
sparse warnings: (new ones prefixed by >>)
>> drivers/of/base.c:1337:73: sparse: sparse: incorrect type in initializer
   (different base types) @@  expected restricted __be32 @@  got int @@
   drivers/of/base.c:1337:73: sparse:     expected restricted __be32
   drivers/of/base.c:1337:73: sparse:     got int

Thus, Make explicit conversions to mute warning(Although BE and LE are
exactly same in binary representation for 0/~0).

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402042134.GEb3Bgwl-lkp@intel.com/
Signed-off-by: Dawei Li <dawei.li@shingroup.cn>
Link: https://lore.kernel.org/r/20240205024033.3572617-1-dawei.li@shingroup.cn
Signed-off-by: Rob Herring <robh@kernel.org>
2024-02-13 12:12:28 -06:00
Saravana Kannan
8f1e0d791b of: property: Add in-ports/out-ports support to of_graph_get_port_parent()
Similar to the existing "ports" node name, coresight device tree bindings
have added "in-ports" and "out-ports" as standard node names for a
collection of ports.

Add support for these name to of_graph_get_port_parent() so that
remote-endpoint parsing can find the correct parent node for these
coresight ports too.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20240207011803.2637531-4-saravanak@google.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-02-09 10:32:09 +00:00
Saravana Kannan
782bfd03c3 of: property: Improve finding the supplier of a remote-endpoint property
After commit 4a032827da ("of: property: Simplify of_link_to_phandle()"),
remote-endpoint properties created a fwnode link from the consumer device
to the supplier endpoint. This is a tiny bit inefficient (not buggy) when
trying to create device links or detecting cycles. So, improve this the
same way we improved finding the consumer of a remote-endpoint property.

Fixes: 4a032827da ("of: property: Simplify of_link_to_phandle()")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20240207011803.2637531-3-saravanak@google.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-02-09 10:32:09 +00:00
Saravana Kannan
f4653ec986 of: property: Improve finding the consumer of a remote-endpoint property
We have a more accurate function to find the right consumer of a
remote-endpoint property instead of searching for a parent with
compatible string property. So, use that instead. While at it, make the
code to find the consumer a bit more flexible and based on the property
being parsed.

Fixes: f7514a6630 ("of: property: fw_devlink: Add support for remote-endpoint")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20240207011803.2637531-2-saravanak@google.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-02-09 10:32:09 +00:00
Kuninori Morimoto
574849054d of: property: use unsigned int return on of_graph_get_endpoint_count()
Because of of_graph_get_endpoint_count() doesn't report error,
just return count of endpoint, the return type should be unsigned.
Tidyup it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/87plxbcvzb.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-02-06 22:20:24 +00:00
Kuninori Morimoto
4c3b386c46 of: property: add missing kerneldoc for of_graph_get_endpoint_count()
of_graph_get_endpoint_count() doesn't have kerneldoc. Add it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/87r0hrcvzk.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-02-06 22:20:23 +00:00
Christian A. Ehrhardt
607aad1e43 of: unittest: Fix compile in the non-dynamic case
If CONFIG_OF_KOBJ is not set, a device_node does not contain a
kobj and attempts to access the embedded kobj via kref_read break
the compile.

Replace affected kref_read calls with a macro that reads the
refcount if it exists and returns 1 if there is no embedded kobj.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401291740.VP219WIz-lkp@intel.com/
Fixes: 4dde835698 ("of: Fix double free in of_parse_phandle_with_args_map")
Signed-off-by: Christian A. Ehrhardt <lk@c--e.de>
Link: https://lore.kernel.org/r/20240129192556.403271-1-lk@c--e.de
Signed-off-by: Rob Herring <robh@kernel.org>
2024-01-31 16:04:18 -06:00
Nuno Sa
8f7e917907 of: property: fix typo in io-channels
The property is io-channels and not io-channel. This was effectively
preventing the devlink creation.

Fixes: 8e12257dea ("of: property: Add device link support for iommus, mboxes and io-channels")
Cc: stable@vger.kernel.org
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240123-iio-backend-v7-1-1bff236b8693@analog.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-01-31 07:42:38 -06:00
Kuninori Morimoto
28c5d4e407 of: Add for_each_reserved_child_of_node()
We would like to use for_each loop for status = "reserved" nodes.
Add for_each_reserved_child_of_node() for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/87a5pegfau.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-01-23 09:38:30 +01:00
Kuninori Morimoto
8918283af1 of: Add of_get_next_status_child() and makes more generic of_get_next
Linux Kernel has of_get_next_available_child().
Add more generic of_get_next_status_child() to enable to use same
logic for other status.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/87bk9ugfb0.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-01-23 09:38:23 +01:00
Kuninori Morimoto
b5056ecf7c of: Add __of_device_is_status() and makes more generic status check
Linux Kernel has __of_device_is_available() / __of_device_is_fail(),
these are checking if the status was "okay" / "ok" / "fail" / "fail-".

Add more generic __of_device_is_status() function for these.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/87cyuagfba.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-01-23 09:38:16 +01:00
Alexander Stein
e20cd62b1f of: property: Make 'no port node found' output a debug message
There are cases where an unavailable port is not an error, making this
error message a false-positive. Since commit d56de8c9a1 ("usb: typec:
tcpm: try to get role switch from tcpc fwnode") the role switch is tried
on the port dev first and tcpc fwnode afterwards. If using the latter
bindings getting from port dev fails every time. The kernel log is flooded
with the messages like:
 OF: graph: no port node found in /soc@0/bus@42000000/i2c@42530000/usb-typec@50
Silence this message by making it a debug message.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20240117083206.2901534-1-alexander.stein@ew.tq-group.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-01-22 08:00:35 -06:00
Linus Torvalds
0dde2bf67b IOMMU Updates for Linux v6.8
Including:
 
 	- Core changes:
 	  - Fix race conditions in device probe path
 	  - Retire IOMMU bus_ops
 	  - Support for passing custom allocators to page table drivers
 	  - Clean up Kconfig around IOMMU_SVA
 	  - Support for sharing SVA domains with all devices bound to
 	    a mm
 	  - Firmware data parsing cleanup
 	  - Tracing improvements for iommu-dma code
 	  - Some smaller fixes and cleanups
 
 	- ARM-SMMU drivers:
 	  - Device-tree binding updates:
 	     - Add additional compatible strings for Qualcomm SoCs
 	     - Document Adreno clocks for Qualcomm's SM8350 SoC
 	  - SMMUv2:
 	    - Implement support for the ->domain_alloc_paging() callback
 	    - Ensure Secure context is restored following suspend of Qualcomm SMMU
 	      implementation
 	  - SMMUv3:
 	    - Disable stalling mode for the "quiet" context descriptor
 	    - Minor refactoring and driver cleanups
 
 	 - Intel VT-d driver:
 	   - Cleanup and refactoring
 
 	 - AMD IOMMU driver:
 	   - Improve IO TLB invalidation logic
 	   - Small cleanups and improvements
 
 	 - Rockchip IOMMU driver:
 	   - DT binding update to add Rockchip RK3588
 
 	 - Apple DART driver:
 	   - Apple M1 USB4/Thunderbolt DART support
 	   - Cleanups
 
 	 - Virtio IOMMU driver:
 	   - Add support for iotlb_sync_map
 	   - Enable deferred IO TLB flushes
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Merge tag 'iommu-updates-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:
 "Core changes:
   - Fix race conditions in device probe path
   - Retire IOMMU bus_ops
   - Support for passing custom allocators to page table drivers
   - Clean up Kconfig around IOMMU_SVA
   - Support for sharing SVA domains with all devices bound to a mm
   - Firmware data parsing cleanup
   - Tracing improvements for iommu-dma code
   - Some smaller fixes and cleanups

  ARM-SMMU drivers:
   - Device-tree binding updates:
      - Add additional compatible strings for Qualcomm SoCs
      - Document Adreno clocks for Qualcomm's SM8350 SoC
   - SMMUv2:
      - Implement support for the ->domain_alloc_paging() callback
      - Ensure Secure context is restored following suspend of Qualcomm
        SMMU implementation
   - SMMUv3:
      - Disable stalling mode for the "quiet" context descriptor
      - Minor refactoring and driver cleanups

  Intel VT-d driver:
   - Cleanup and refactoring

  AMD IOMMU driver:
   - Improve IO TLB invalidation logic
   - Small cleanups and improvements

  Rockchip IOMMU driver:
   - DT binding update to add Rockchip RK3588

  Apple DART driver:
   - Apple M1 USB4/Thunderbolt DART support
   - Cleanups

  Virtio IOMMU driver:
   - Add support for iotlb_sync_map
   - Enable deferred IO TLB flushes"

* tag 'iommu-updates-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (66 commits)
  iommu: Don't reserve 0-length IOVA region
  iommu/vt-d: Move inline helpers to header files
  iommu/vt-d: Remove unused vcmd interfaces
  iommu/vt-d: Remove unused parameter of intel_pasid_setup_pass_through()
  iommu/vt-d: Refactor device_to_iommu() to retrieve iommu directly
  iommu/sva: Fix memory leak in iommu_sva_bind_device()
  dt-bindings: iommu: rockchip: Add Rockchip RK3588
  iommu/dma: Trace bounce buffer usage when mapping buffers
  iommu/arm-smmu: Convert to domain_alloc_paging()
  iommu/arm-smmu: Pass arm_smmu_domain to internal functions
  iommu/arm-smmu: Implement IOMMU_DOMAIN_BLOCKED
  iommu/arm-smmu: Convert to a global static identity domain
  iommu/arm-smmu: Reorganize arm_smmu_domain_add_master()
  iommu/arm-smmu-v3: Remove ARM_SMMU_DOMAIN_NESTED
  iommu/arm-smmu-v3: Master cannot be NULL in arm_smmu_write_strtab_ent()
  iommu/arm-smmu-v3: Add a type for the STE
  iommu/arm-smmu-v3: disable stall for quiet_cd
  iommu/qcom: restore IOMMU state if needed
  iommu/arm-smmu-qcom: Add QCM2290 MDSS compatible
  iommu/arm-smmu-qcom: Add missing GMU entry to match table
  ...
2024-01-18 15:16:57 -08:00
Linus Torvalds
296455ade1 Char/Misc and other Driver changes for 6.8-rc1
Here is the big set of char/misc and other driver subsystem changes for
 6.8-rc1.  Lots of stuff in here, but first off, you will get a merge
 conflict in drivers/android/binder_alloc.c when merging this tree due to
 changing coming in through the -mm tree.
 
 The resolution of the merge issue can be found here:
 	https://lore.kernel.org/r/20231207134213.25631ae9@canb.auug.org.au
 or in a simpler patch form in that thread:
 	https://lore.kernel.org/r/ZXHzooF07LfQQYiE@google.com
 
 If there are issues with the merge of this file, please let me know.
 
 Other than lots of binder driver changes (as you can see by the merge
 conflicts) included in here are:
  - lots of iio driver updates and additions
  - spmi driver updates
  - eeprom driver updates
  - firmware driver updates
  - ocxl driver updates
  - mhi driver updates
  - w1 driver updates
  - nvmem driver updates
  - coresight driver updates
  - platform driver remove callback api changes
  - tags.sh script updates
  - bus_type constant marking cleanups
  - lots of other small driver updates
 
 All of these have been in linux-next for a while with no reported issues
 (other than the binder merge conflict.)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem changes
  for 6.8-rc1.

  Other than lots of binder driver changes (as you can see by the merge
  conflicts) included in here are:

   - lots of iio driver updates and additions

   - spmi driver updates

   - eeprom driver updates

   - firmware driver updates

   - ocxl driver updates

   - mhi driver updates

   - w1 driver updates

   - nvmem driver updates

   - coresight driver updates

   - platform driver remove callback api changes

   - tags.sh script updates

   - bus_type constant marking cleanups

   - lots of other small driver updates

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

* tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (341 commits)
  android: removed duplicate linux/errno
  uio: Fix use-after-free in uio_open
  drivers: soc: xilinx: add check for platform
  firmware: xilinx: Export function to use in other module
  scripts/tags.sh: remove find_sources
  scripts/tags.sh: use -n to test archinclude
  scripts/tags.sh: add local annotation
  scripts/tags.sh: use more portable -path instead of -wholename
  scripts/tags.sh: Update comment (addition of gtags)
  firmware: zynqmp: Convert to platform remove callback returning void
  firmware: turris-mox-rwtm: Convert to platform remove callback returning void
  firmware: stratix10-svc: Convert to platform remove callback returning void
  firmware: stratix10-rsu: Convert to platform remove callback returning void
  firmware: raspberrypi: Convert to platform remove callback returning void
  firmware: qemu_fw_cfg: Convert to platform remove callback returning void
  firmware: mtk-adsp-ipc: Convert to platform remove callback returning void
  firmware: imx-dsp: Convert to platform remove callback returning void
  firmware: coreboot_table: Convert to platform remove callback returning void
  firmware: arm_scpi: Convert to platform remove callback returning void
  firmware: arm_scmi: Convert to platform remove callback returning void
  ...
2024-01-17 16:47:17 -08:00
Linus Torvalds
38814330fe Devicetree for v6.8:
- Convert FPGA bridge, all TPMs (finally), and Rockchip HDMI bindings to
   schemas
 
 - Improvements in Samsung GPU schemas
 
 - A few more cases of dropping unneeded quotes in schemas
 
 - Merge QCom idle-states txt binding into common idle-states schema
 
 - Add X1E80100, SM8650, SM8650, and SDX75 SoCs to QCom Power Domain
   Controller
 
 - Add NXP i.mx8dl to SCU PD
 
 - Add synaptics r63353 panel controller
 
 - Clarify the wording around the use of 'wakeup-source' property
 
 - Add a DTS coding style doc
 
 - Add smi vendor prefix
 
 - Fix DT_SCHEMA_FILES incorrect matching of paths outside the kernel
   tree
 
 - Disable sysfb (e.g. EFI FB) when simple-framebuffer node is present
 
 - Fix double free in of_parse_phandle_with_args_map()
 
 - A couple of kerneldoc fixes
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Merge tag 'devicetree-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:

 - Convert FPGA bridge, all TPMs (finally), and Rockchip HDMI bindings
   to schemas

 - Improvements in Samsung GPU schemas

 - A few more cases of dropping unneeded quotes in schemas

 - Merge QCom idle-states txt binding into common idle-states schema

 - Add X1E80100, SM8650, SM8650, and SDX75 SoCs to QCom Power Domain
   Controller

 - Add NXP i.mx8dl to SCU PD

 - Add synaptics r63353 panel controller

 - Clarify the wording around the use of 'wakeup-source' property

 - Add a DTS coding style doc

 - Add smi vendor prefix

 - Fix DT_SCHEMA_FILES incorrect matching of paths outside the kernel
   tree

 - Disable sysfb (e.g. EFI FB) when simple-framebuffer node is present

 - Fix double free in of_parse_phandle_with_args_map()

 - A couple of kerneldoc fixes

* tag 'devicetree-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (37 commits)
  of: unittest: Fix of_count_phandle_with_args() expected value message
  dt-bindings: fpga: altera: Convert bridge bindings to yaml
  dt-bindings: fpga: Convert bridge binding to yaml
  dt-bindings: vendor-prefixes: Add smi
  dt-bindings: power: Clarify wording for wakeup-source property
  of: Fix double free in of_parse_phandle_with_args_map
  dt-bindings: ignore paths outside kernel for DT_SCHEMA_FILES
  drivers: of: Fixed kernel doc warning
  dt-bindings: tpm: Document Microsoft fTPM bindings
  dt-bindings: tpm: Convert IBM vTPM bindings to DT schema
  dt-bindings: tpm: Convert Google Cr50 bindings to DT schema
  dt-bindings: tpm: Consolidate TCG TIS bindings
  dt-bindings: display: rockchip,inno-hdmi: Document RK3128 compatible
  dt-bindings: arm: Add remote etm dt-binding
  dt-bindings: mmc: sdhci-pxa: Fix 'regs' typo
  media: dt-bindings: samsung,s5p-mfc: Fix iommu properties schemas
  dt-bindings: display: panel: Add synaptics r63353 panel controller
  dt-bindings: arm: merge qcom,idle-state with idle-state
  dt-bindings: drm: rockchip: convert inno_hdmi-rockchip.txt to yaml
  dt-bindings: cache: qcom,llcc: correct QDU1000 reg entries
  ...
2024-01-12 15:05:30 -08:00
Geert Uytterhoeven
716089b417 of: unittest: Fix of_count_phandle_with_args() expected value message
The expected result value for the call to of_count_phandle_with_args()
was updated from 7 to 8, but the accompanying error message was
forgotten.

Fixes: 4dde835698 ("of: Fix double free in of_parse_phandle_with_args_map")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240111085025.2073894-1-geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
2024-01-11 16:18:30 -06:00
Christian A. Ehrhardt
4dde835698 of: Fix double free in of_parse_phandle_with_args_map
In of_parse_phandle_with_args_map() the inner loop that
iterates through the map entries calls of_node_put(new)
to free the reference acquired by the previous iteration
of the inner loop. This assumes that the value of "new" is
NULL on the first iteration of the inner loop.

Make sure that this is true in all iterations of the outer
loop by setting "new" to NULL after its value is assigned to "cur".

Extend the unittest to detect the double free and add an additional
test case that actually triggers this path.

Fixes: bd6f2fd5a1 ("of: Support parsing phandle argument lists through a nexus node")
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: "Christian A. Ehrhardt" <lk@c--e.de>
Link: https://lore.kernel.org/r/20231229105411.1603434-1-lk@c--e.de
Signed-off-by: Rob Herring <robh@kernel.org>
2024-01-09 12:54:02 -06:00
Muzammil Ashraf
09c49315f4 drivers: of: Fixed kernel doc warning
property.c:1220 : Fixed excess struct member definition warning
property.c:444 	: Fixed missing a blank line after declarations

Signed-off-by: Muzammil Ashraf <m.muzzammilashraf@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20231219062317.17650-1-muzammil@dreambigsemi.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-01-09 10:56:19 -06:00
Joerg Roedel
75f74f85a4 Merge branches 'apple/dart', 'arm/rockchip', 'arm/smmu', 'virtio', 'x86/vt-d', 'x86/amd' and 'core' into next 2024-01-03 09:59:32 +01:00
Miquel Raynal
7f38b70042 of: device: Export of_device_make_bus_id()
This helper is really handy to create unique device names based on their
device tree path, we may need it outside of the OF core (in the NVMEM
subsystem) so let's export it. As this helper has nothing patform
specific, let's move it to of/device.c instead of of/platform.c so we
can add its prototype to of_device.h.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20231215111536.316972-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-15 13:30:07 +01:00
Robin Murphy
4ad4c1f394 dma-mapping: don't store redundant offsets
A bus_dma_region necessarily stores both CPU and DMA base addresses for
a range, so there's no need to also store the difference between them.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2023-12-15 12:32:42 +01:00
Jason Gunthorpe
6ff6e184f1 iommmu/of: Do not return struct iommu_ops from of_iommu_configure()
Nothing needs this pointer. Return a normal error code with the usual
IOMMU semantic that ENODEV means 'there is no IOMMU driver'.

Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/2-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2023-12-12 10:18:47 +01:00
Jason Gunthorpe
4720287c7b iommu: Remove struct iommu_ops *iommu from arch_setup_dma_ops()
This is not being used to pass ops, it is just a way to tell if an
iommu driver was probed. These days this can be detected directly via
device_iommu_mapped(). Call device_iommu_mapped() in the two places that
need to check it and remove the iommu parameter everywhere.

Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/1-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2023-12-12 10:18:45 +01:00