Commit Graph

75871 Commits

Author SHA1 Message Date
Cheng Jiang
86029c6025 dt-bindings: net: bluetooth: qca: Expand firmware-name property
Expand the firmware-name property to specify the names of NVM and
rampatch firmware to load. This update will support loading specific
firmware (nvm and rampatch) for certain chips, like the QCA6698
Bluetooth chip, which shares the same IP core as the WCN6855 but has
different RF components and RAM sizes, requiring new firmware files.

We might use different connectivity boards on the same platform. For
example, QCA6698-based boards can support either a two-antenna or
three-antenna solution, both of which work on the sa8775p-ride platform.
Due to differences in connectivity boards and variations in RF
performance from different foundries, different NVM configurations are
used based on the board ID.

So In firmware-name, if the NVM file has an extension, the NVM file will
be used. Otherwise, the system will first try the .bNN (board ID) file,
and if that fails, it will fall back to the .bin file.

Possible configurations:
firmware-name = "QCA6698/hpnv21.bin", "QCA6698/hpbtfw21.tlv";
firmware-name = "QCA6698/hpnv21", "QCA6698/hpbtfw21.tlv";
firmware-name = "QCA6698/hpnv21.bin";

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Cheng Jiang <quic_chejiang@quicinc.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-01-15 10:33:43 -05:00
Andrew Davis
756d4b7a87 dt-bindings: mfd: syscon: Fix ti,j784s4-acspcie-proxy-ctrl compatible
This compatible was only added to the list for compatibility with older
dtschema (<2024.02). Add it to the other list also so both new and old
tools work.

Fixes: 0d078d47cd ("dt-bindings: mfd: syscon: Add ti,j784s4-acspcie-proxy-ctrl compatible")
Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Romain Naour <romain.naour@smile.fr>
Link: https://lore.kernel.org/r/20250103174524.28768-2-afd@ti.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-01-15 15:00:29 +00:00
Andrew Davis
476f519d1b dt-bindings: mfd: syscon: Fix al,alpine-sysfabric-service compatible
This compatible seems to be missing the last 'e', looks to be a typo
when creating this file. Noticed this when diff'ing the two compatible
lists (which should stay in sync).

Fixes: f97b0435c8 ("dt-bindings: mfd: syscon: Split and enforce documenting MFD children")
Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250103174524.28768-4-afd@ti.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-01-15 14:59:37 +00:00
Arnd Bergmann
677184d6e4 Merge tag 'samsung-drivers-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers
Samsung SoC drivers for v6.14

1. Add new bindings for sysreg in Exynos8895.
2. Minor improvements in Exynos USI bindings.
3. Fix for Smatch warning in Exynos PMU syscon driver.

* tag 'samsung-drivers-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  soc: samsung: exynos-pmu: Fix uninitialized ret in tensor_set_bits_atomic()
  dt-bindings: soc: samsung: exynos-sysreg: add sysreg compatibles for exynos8895
  dt-bindings: samsung: exynos-usi: Restrict possible samsung,mode values

Link: https://lore.kernel.org/r/20250112180846.64154-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-01-15 15:59:24 +01:00
Arnd Bergmann
97d139585a Merge tag 'qcom-drivers-for-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers
Qualcomm driver updates for v6.14

The Qualcomm SCM drivers gains a number of fixes and improvements
related to race conditions during initialization. QSEECOM and the EFI
variable service therein is enabled for a few 8cx Gen 3 and X Elite
boards.

LLCC driver gains configuration for IPQ5424 and WRCACHE is enabled on X
Elite.

The BCM_TCS_CMD() macro is corrected and is cleaned up.

Support for SM7225 and X 1 Plus are added to the pd-mapper.

pmic_glink and the associated altmode driver are simplied using guards.

socinfo is added for QCS9075 and serial number readout on MSM8916
devices is corrected.

* tag 'qcom-drivers-for-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (29 commits)
  firmware: qcom: scm: add calls for wrapped key support
  soc: qcom: pd_mapper: Add SM7225 compatible
  dt-bindings: firmware: qcom,scm: Document ipq5424 SCM
  soc: qcom: llcc: Update configuration data for IPQ5424
  dt-bindings: cache: qcom,llcc: Add IPQ5424 compatible
  firmware: qcom: scm: smc: Narrow 'mempool' variable scope
  firmware: qcom: scm: smc: Handle missing SCM device
  firmware: qcom: scm: Cleanup global '__scm' on probe failures
  firmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool()
  firmware: qcom: scm: Fix missing read barrier in qcom_scm_is_available()
  soc: qcom: socinfo: add QCS9075 SoC ID
  dt-bindings: arm: qcom,ids: add SoC ID for QCS9075
  soc: qcom: socinfo: Avoid out of bounds read of serial number
  firmware: qcom: scm: Allow QSEECOM on Huawei Matebook E Go (sc8280xp)
  firmware: qcom: scm: Allow QSEECOM for Windows Dev Kit 2023
  firmware: qcom: scm: Allow QSEECOM for HP Omnibook X14
  soc: qcom: rmtfs: constify rmtfs_class
  soc: qcom: rmtfs: allow building the module with COMPILE_TEST=y
  soc: qcom: pmic_glink_altmode: simplify locking with guard()
  soc: qcom: Rework BCM_TCS_CMD macro
  ...

Link: https://lore.kernel.org/r/20250111172901.391774-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-01-15 15:58:01 +01:00
Shravan Kumar Ramani
913240e47b Documentation/ABI: Add new sysfs field to sysfs-platform-mellanox-pmc
Document newly added "count_clock" sysfs entry for the Mellanox
BlueField PMC driver.

Signed-off-by: Shravan Kumar Ramani <shravankr@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/367301238efff01fc200c67bca461c0424baf95d.1736413033.git.shravankr@nvidia.com
[ij: corrected KernelVersion & Date]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-15 16:26:36 +02:00
Shravan Kumar Ramani
1b32401b52 Documentation/ABI: Add document for Mellanox PMC driver
Document the sysfs interface for programming and monitoring the
performance counters in various HW blocks of Mellanox BlueField-1,
BlueField-2 and BlueField-3.

Signed-off-by: Shravan Kumar Ramani <shravankr@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/9a9e69bd99cad3ad8d1847a6e4e10aff80c6df50.1736413033.git.shravankr@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-15 16:26:31 +02:00
Igor Belwon
f16d91d8fe dt-bindings: soc: samsung: exynos-pmu: Add exynos990-pmu compatible
Add a dt-binding compatible for the Exynos990 PMU. It's compatible
with the Exynos7 PMU design. It handles system reboot, as well as
other system control registers (i.e registers for the USB PHY).

Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20241204145559.524932-2-igor.belwon@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241231131742.134329-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-01-15 15:01:47 +01:00
Al Viro
f7862dfef6 saner replacement for debugfs_rename()
Existing primitive has several problems:
	1) calling conventions are clumsy - it returns a dentry reference
that is either identical to its second argument or is an ERR_PTR(-E...);
in both cases no refcount changes happen.  Inconvenient for users and
bug-prone; it would be better to have it return 0 on success and -E... on
failure.
	2) it allows cross-directory moves; however, no such caller have
ever materialized and considering the way debugfs is used, it's unlikely
to happen in the future.  What's more, any such caller would have fun
issues to deal with wrt interplay with recursive removal.  It also makes
the calling conventions clumsier...
	3) tautological rename fails; the callers have no race-free way
to deal with that.
	4) new name must have been formed by the caller; quite a few
callers have it done by sprintf/kasprintf/etc., ending up with considerable
boilerplate.

Proposed replacement: int debugfs_change_name(dentry, fmt, ...).  All callers
convert to that easily, and it's simpler internally.

IMO debugfs_rename() should go; if we ever get a real-world use case for
cross-directory moves in debugfs, we can always look into the right way
to handle that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-21-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:37 +01:00
HONG Yifan
ceff0757f5 kbuild: rust: add PROCMACROLDFLAGS
These are flags to be passed when linking proc macros for the Rust
toolchain. If unset, it defaults to $(KBUILD_HOSTLDFLAGS).

This is needed because the list of flags to link hostprogs is not
necessarily the same as the list of flags used to link libmacros.so.
When we build proc macros, we need the latter, not the former (e.g. when
using a Rust compiler binary linked to a different C library than host
programs).

To distinguish between the two, introduce this new variable to stand
out from KBUILD_HOSTLDFLAGS used to link other host progs.

Signed-off-by: HONG Yifan <elsk@google.com>
Link: https://lore.kernel.org/r/20241017210430.2401398-2-elsk@google.com
[ v3:

  - `export`ed the variable. Otherwise it would not be visible in
    `rust/Makefile`.

  - Removed "additional" from the documentation and commit message,
    since this actually replaces the other flags, unlike other cases.

  - Added example of use case to documentation and commit message.
    Thanks Alice for the details on what Google needs!

  - Instead of `HOSTLDFLAGS`, used `KBUILD_HOSTLDFLAGS` as the fallback
    to preserve the previous behavior as much as possible, as discussed
    with Alice/Yifan. Thus moved the variable down too (currently we
    do not modify `KBUILD_HOSTLDFLAGS` elsewhere) and avoided
    mentioning `HOSTLDFLAGS` directly in the documentation.

  - Fixed documentation header formatting.

  - Reworded slightly.

         - Miguel ]
Tested-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: HONG Yifan <elsk@google.com>
Acked-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20241112184455.855133-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-01-15 09:53:54 +01:00
Maxime Ripard
79c4b4f431 doc/cgroup: Fix title underline length
Commit b168ed458d ("kernel/cgroup: Add "dmem" memory accounting
cgroup") introduced a new documentation file, with a shorter than
expected underline. This results in a documentation build warning. Fix
that underline length.

Fixes: b168ed458d ("kernel/cgroup: Add "dmem" memory accounting cgroup")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/r/20250113154611.624256bf@canb.auug.org.au/
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20250113092608.1349287-4-mripard@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-01-15 09:46:18 +01:00
Maxime Ripard
f45cdbc9e1 drm/doc: Include new drm-compute documentation
Commit b168ed458d ("kernel/cgroup: Add "dmem" memory accounting
cgroup") introduced a new documentation file, but didn't link it
anywhere. It was thus triggering a documentation build warning. Make
sure it's included as part of the DRM documentation.

Fixes: b168ed458d ("kernel/cgroup: Add "dmem" memory accounting cgroup")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/r/20250113155000.4a99e7b0@canb.auug.org.au/
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20250113092608.1349287-3-mripard@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-01-15 09:45:54 +01:00
Jakub Kicinski
05baba80f2 docs: netdev: document requirements for Supported status
As announced back in April, require running upstream tests
to maintain Supported status for NIC drivers:

  https://lore.kernel.org/20240425114200.3effe773@kernel.org

Multiple vendors have been "working on it" for months.
Let's make it official.

Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250111024359.3678956-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-14 14:28:37 -08:00
Mike Snitzer
4a489220aa nfs: probe for LOCALIO when v3 client reconnects to server
Re-enabling NFSv3 LOCALIO is made more complex (than NFSv4) because v3
is stateless.  As such, the hueristic used to identify a LOCALIO probe
point is more adhoc by nature: if/when NFSv3 client IO begins to
complete again in terms of normal RPC-based NFSv3 server IO, attempt
nfs_local_probe_async().

Care is taken to throttle the frequency of nfs_local_probe_async(),
otherwise there could be a flood of repeat calls to
nfs_local_probe_async().

The throttle is admin controlled using a new module parameter for
nfsv3, e.g.:
  echo 512 > /sys/module/nfsv3/parameters/nfs3_localio_probe_throttle

Probe for NFSv3 LOCALIO every N IO requests (512 in this case). Must
be power-of-2, defaults to 0 (probing disabled).

On systems that expect to use LOCALIO with NFSv3 the admin should
configure the 'nfs3_localio_probe_throttle' module parameter.

This commit backfills module parameter documentation in localio.rst

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
2025-01-14 17:05:10 -05:00
Mike Snitzer
b33f7dec3a nfsd: rename nfsd_serv_ prefixed methods and variables with nfsd_net_
Also update Documentation/filesystems/nfs/localio.rst accordingly
and reduce the technical documentation debt that was previously
captured in that document.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
2025-01-14 17:05:07 -05:00
Mike Snitzer
3feec68563 nfs/localio: add direct IO enablement with sync and async IO support
This commit simply adds the required O_DIRECT plumbing.  It doesn't
address the fact that NFS doesn't ensure all writes are page aligned
(nor device logical block size aligned as required by O_DIRECT).

Because NFS will read-modify-write for IO that isn't aligned, LOCALIO
will not use O_DIRECT semantics by default if/when an application
requests the use of O_DIRECT.  Allow the use of O_DIRECT semantics by:
1: Adding a flag to the nfs_pgio_header struct to allow the NFS
   O_DIRECT layer to signal that O_DIRECT was used by the application
2: Adding a 'localio_O_DIRECT_semantics' NFS module parameter that
   when enabled will cause LOCALIO to use O_DIRECT semantics (this may
   cause IO to fail if applications do not properly align their IO).

This commit is derived from code developed by Weston Andros Adamson.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
2025-01-14 17:04:02 -05:00
Linus Torvalds
79a1d390f8 Merge tag 'sound-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "Hopefully the last PR for 6.13. This became bigger than wished due to
  the timing after holiday breaks.

  The only large LOC is the additional document for Cirrus codec which
  is nice for users (and absolutely safe). All the rest are small fixes
  in ASoC Rcar and codecs as well as HD-audio quirks (And no fix for USB
  guitar pedals seen yet :)"

* tag 'sound-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Fix volume adjustment issue on Lenovo ThinkBook 16P Gen5
  ALSA: hda/realtek: fixup ASUS H7606W
  ALSA: hda/realtek: fixup ASUS GA605W
  ALSA: hda/realtek: Add support for Ayaneo System using CS35L41 HDA
  ASoC: rsnd: check rsnd_adg_clk_enable() return value
  ASoC: cs42l43: Add codec force suspend/resume ops
  ALSA: doc: Add codecs/index.rst to top-level index
  ALSA: doc: cs35l56: Add information about Cirrus Logic CS35L54/56/57
  ASoC: samsung: Add missing depends on I2C
  MAINTAINERS: add missing maintainers for Simple Audio Card
  ASoC: samsung: Add missing selects for MFD_WM8994
  ASoC: codecs: es8316: Fix HW rate calculation for 48Mhz MCLK
  ASoC: wm8994: Add depends on MFD core
  ASoC: tas2781: Fix occasional calibration failture
  ASoC: codecs: ES8326: Adjust ANA_MICBIAS to reduce pop noise
2025-01-14 09:54:57 -08:00
Mao Jinlong
76583aac80 dt-bindings: arm: coresight: Update the pattern of ete node name
The device full name is embedded trace extension. There is no good fit
in generic names list for the embedded trace extension. ETE is abbreviation
of embedded trace extension and the number is the CPU number that ete is
associated. Change the pattern of the node name as it won't affect any
device tree node as of now.

Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20250107090031.3319-2-quic_jinlmao@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-01-14 10:04:30 -06:00
Steven Rostedt
94d529a325 ftrace: Document that multiple function_graph tracing may have different times
The function graph tracer now calculates the calltime internally and for
each instance. If there are two instances that are running function graph
tracer and are tracing the same functions, the timings of the length of
those functions may be slightly different:

 # trace-cmd record -B foo -p function_graph -B bar -p function_graph sleep 5
 # trace-cmd report
[..]
bar:            sleep-981   [000] ...1.  1101.109027: funcgraph_entry:        0.764 us   |          mutex_unlock(); (ret=0xffff8abcc256c300)
foo:            sleep-981   [000] ...1.  1101.109028: funcgraph_entry:        0.748 us   |          mutex_unlock(); (ret=0xffff8abcc256c300)
bar:            sleep-981   [000] .....  1101.109029: funcgraph_exit:         2.456 us   |        } (ret=0xffff8abcc256c300)
foo:            sleep-981   [000] .....  1101.109029: funcgraph_exit:         2.403 us   |        } (ret=0xffff8abcc256c300)
bar:            sleep-981   [000] d..1.  1101.109031: funcgraph_entry:        0.844 us   |  fpregs_assert_state_consistent(); (ret=0x0)
foo:            sleep-981   [000] d..1.  1101.109032: funcgraph_entry:        0.803 us   |  fpregs_assert_state_consistent(); (ret=0x0)

Link: https://lore.kernel.org/all/20250114101806.b2778cb01f34f5be9d23ad98@kernel.org/

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Suggested-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/20250114101202.02e7bc68@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-01-14 10:45:24 -05:00
Shengjiu Wang
3927c51e49 ASoC: dt-bindings: fsl,micfil: Add compatible string for i.MX943 platform
Add compatible string "fsl,imx943-micfil" for i.MX943 platform.
The definition of register map and some register bit map is
different on the i.MX943 platform.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20250114102720.3664667-3-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-01-14 14:31:05 +00:00
Krzysztof Kozlowski
9e7665097f dt-bindings: pinctrl: Correct indentation and style in DTS example
DTS example in the bindings should be indented with 2- or 4-spaces and
aligned with opening '- |', so correct any differences like 3-spaces or
mixtures 2- and 4-spaces in one binding.

No functional changes here, but saves some comments during reviews of
new patches built on existing code.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/20250107125836.225447-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-01-14 15:16:46 +01:00
Linus Walleij
94467a2274 Merge tag 'renesas-pinctrl-for-v6.14-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: renesas: Updates for v6.14 (take two)

  - Add support for alpha-numerical port references on the RZ/V2H SoC,
  - Add support for the RZ/G3E (R9A09G047) Soc.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-01-14 13:30:36 +01:00
Oleksij Rempel
7d66c74a17 Documentation: networking: update PHY error counter diagnostics in twisted pair guide
Replace generic instructions for monitoring error counters with a
procedure using the unified PHY statistics interface (`--all-groups`).

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-01-14 11:44:19 +01:00
Jakub Kicinski
6167c0b6e8 net: ethtool: add support for structured PHY statistics
Introduce a new way to report PHY statistics in a structured and
standardized format using the netlink API. This new method does not
replace the old driver-specific stats, which can still be accessed with
`ethtool -S <eth name>`. The structured stats are available with
`ethtool -S <eth name> --all-groups`.

This new method makes it easier to diagnose problems by organizing stats
in a consistent and documented way.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-01-14 11:44:19 +01:00
Wolfram Sang
d621673033 Merge tag 'at24-updates-for-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-mergewindow
at24 updates for v6.14-rc1

- add new compatibles for at24 variants from Giantec and Puya
  Semiconductor (together with a new vendor prefix)
2025-01-14 11:13:43 +01:00
Wenchao Hao
67c8b11bd5 mm: add per-order mTHP swap-in fallback/fallback_charge counters
Currently, large folio swap-in is supported, but we lack a method to
analyze their success ratio.  Similar to anon_fault_fallback, we introduce
per-order mTHP swpin_fallback and swpin_fallback_charge counters for
calculating their success ratio.  The new counters are located at:

/sys/kernel/mm/transparent_hugepage/hugepages-<size>/stats/
	swpin_fallback
	swpin_fallback_charge

Link: https://lkml.kernel.org/r/20241202124730.2407037-1-haowenchao22@gmail.com
Signed-off-by: Wenchao Hao <haowenchao22@gmail.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Reviewed-by: Lance Yang <ioworker0@gmail.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Usama Arif <usamaarif642@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-13 22:40:49 -08:00
Qi Zheng
6c18ec9af8 mm: khugepaged: recheck pmd state in retract_page_tables()
Patch series "synchronously scan and reclaim empty user PTE pages", v4.

Previously, we tried to use a completely asynchronous method to reclaim
empty user PTE pages [1].  After discussing with David Hildenbrand, we
decided to implement synchronous reclaimation in the case of
madvise(MADV_DONTNEED) as the first step.

So this series aims to synchronously free the empty PTE pages in
madvise(MADV_DONTNEED) case.  We will detect and free empty PTE pages in
zap_pte_range(), and will add zap_details.reclaim_pt to exclude cases
other than madvise(MADV_DONTNEED).

In zap_pte_range(), mmu_gather is used to perform batch tlb flushing and
page freeing operations.  Therefore, if we want to free the empty PTE page
in this path, the most natural way is to add it to mmu_gather as well. 
Now, if CONFIG_MMU_GATHER_RCU_TABLE_FREE is selected, mmu_gather will free
page table pages by semi RCU:

 - batch table freeing: asynchronous free by RCU
 - single table freeing: IPI + synchronous free

But this is not enough to free the empty PTE page table pages in paths
other that munmap and exit_mmap path, because IPI cannot be synchronized
with rcu_read_lock() in pte_offset_map{_lock}().  So we should let single
table also be freed by RCU like batch table freeing.

As a first step, we supported this feature on x86_64 and selectd the newly
introduced CONFIG_ARCH_SUPPORTS_PT_RECLAIM.

For other cases such as madvise(MADV_FREE), consider scanning and freeing
empty PTE pages asynchronously in the future.

Note: issues related to TLB flushing are not new to this series and are tracked
      in the separate RFC patch [3]. And more context please refer to this
      thread [4].

[1]. https://lore.kernel.org/lkml/cover.1718267194.git.zhengqi.arch@bytedance.com/
[2]. https://lore.kernel.org/lkml/cover.1727332572.git.zhengqi.arch@bytedance.com/
[3]. https://lore.kernel.org/lkml/20240815120715.14516-1-zhengqi.arch@bytedance.com/
[4]. https://lore.kernel.org/lkml/6f38cb19-9847-4f70-bbe7-06881bb016be@bytedance.com/


This patch (of 11):

In retract_page_tables(), the lock of new_folio is still held, we will be
blocked in the page fault path, which prevents the pte entries from being
set again.  So even though the old empty PTE page may be concurrently
freed and a new PTE page is filled into the pmd entry, it is still empty
and can be removed.

So just refactor the retract_page_tables() a little bit and recheck the
pmd state after holding the pmd lock.

Link: https://lkml.kernel.org/r/cover.1733305182.git.zhengqi.arch@bytedance.com
Link: https://lkml.kernel.org/r/70a51804cd19d44ccaf031825d9fb6eaf92f2bad.1733305182.git.zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Suggested-by: Jann Horn <jannh@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: Zach O'Keefe <zokeefe@google.com>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-13 22:40:46 -08:00
Baolin Wang
255ff62d15 docs: tmpfs: drop 'fadvise()' from the documentation
Drop 'fadvise()' from the doc, since fadvise() has no HUGEPAGE advise
currently.

Link: https://lkml.kernel.org/r/3a10bb49832f6d9827dc2c76aec0bf43a892876b.1732779148.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Daniel Gomez <da.gomez@samsung.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Lance Yang <ioworker0@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-13 22:40:37 -08:00
David Hildenbrand
5a4550c96b docs: tmpfs: update the large folios policy for tmpfs and shmem
Update the large folios policy for tmpfs and shmem.

Link: https://lkml.kernel.org/r/9b7418af30e300d1eb05721b81d79074d0bb0ec9.1732779148.git.baolin.wang@linux.alibaba.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Daniel Gomez <da.gomez@samsung.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Lance Yang <ioworker0@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-13 22:40:37 -08:00
Baolin Wang
d635ccdb43 mm: shmem: add a kernel command line to change the default huge policy for tmpfs
Now the tmpfs can allow to allocate any sized large folios, and the default
huge policy is still preferred to be 'never'. Due to tmpfs not behaving like
other file systems in some cases as previously explained by David[1]:

: I think I raised this in the past, but tmpfs/shmem is just like any
: other file system .. except it sometimes really isn't and behaves much
: more like (swappable) anonymous memory. (or mlocked files)
: 
: There are many systems out there that run without swap enabled, or with
: extremely minimal swap (IIRC until recently kubernetes was completely
: incompatible with swapping). Swap can even be disabled today for shmem
: using a mount option.
: 
: That's a big difference to all other file systems where you are
: guaranteed to have backend storage where you can simply evict under
: memory pressure (might temporarily fail, of course).
: 
: I *think* that's the reason why we have the "huge=" parameter that also
: controls the THP allocations during page faults (IOW possible memory
: over-allocation). Maybe also because it was a new feature, and we only
: had a single THP size.

Thus adding a new command line to change the default huge policy will be
helpful to use the large folios for tmpfs, which is similar to the
'transparent_hugepage_shmem' cmdline for shmem.

[1] https://lore.kernel.org/all/cbadd5fe-69d5-4c21-8eb8-3344ed36c721@redhat.com/

Link: https://lkml.kernel.org/r/ff390b2656f0d39649547f8f2cbb30fcb7e7be2d.1732779148.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Daniel Gomez <da.gomez@samsung.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Lance Yang <ioworker0@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-13 22:40:37 -08:00
Moshe Shemesh
9fc43b5e39 net/mlx5: fs, add HWS to steering mode options
Add HW Steering mode to mlx5 devlink param of steering mode options.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250109160546.1733647-14-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-13 19:21:09 -08:00
Georgi Djakov
4cc0047169 Merge branch 'icc-sm8750' into icc-next
Add interconnect support for SM8750 SoC.

The Qualcomm Technologies, Inc. SM8750 SoC is the latest in the line of
consumer mobile device SoCs.

* icc-sm8750
  dt-bindings: interconnect: add interconnect bindings for SM8750
  interconnect: qcom: Add interconnect provider driver for SM8750
  interconnect: sm8750: Add missing const to static qcom_icc_desc

Link: https://lore.kernel.org/r/20241204-sm8750_master_interconnects-v3-0-3d9aad4200e9@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-01-14 00:13:23 +02:00
Shivnandan Kumar
94f51cbb34 dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs
Document the SM8750 BWMONs, which has one instance per cluster of
BWMONv4.

Signed-off-by: Shivnandan Kumar <quic_kshivnan@quicinc.com>
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
Link: https://lore.kernel.org/r/20250113-sm8750_bwmon_master-v1-1-f082da3a3308@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-01-14 00:12:49 +02:00
Rafael J. Wysocki
56098a4505 cpuidle: menu: Update documentation after previous changes
After commit 38f83090f5 ("cpuidle: menu: Remove iowait influence") and
other previous changes, the description of the menu governor in the
documentation does not match the code any more, so update it as
appropriate.

Fixes: 38f83090f5 ("cpuidle: menu: Remove iowait influence")
Fixes: 5484e31bbb ("cpuidle: menu: Skip tick_nohz_get_sleep_length() call in some cases")
Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Link: https://patch.msgid.link/12589281.O9o76ZdvQC@rjwysocki.net
2025-01-13 20:41:39 +01:00
Michael Kelley
2e03358be7 Documentation: hyperv: Add overview of guest VM hibernation
Add documentation on how hibernation works in a guest VM on Hyper-V.
Describe how VMBus devices and the VMBus itself are hibernated and
resumed, along with various limitations.

Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/20250113145645.1320942-1-mhklinux@outlook.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20250113145645.1320942-1-mhklinux@outlook.com>
2025-01-13 19:17:59 +00:00
Neil Armstrong
f56c1b6db5 dt-bindings: interconnect: OSM L3: Document sm8650 OSM L3 compatible
Document the OSM L3 found in the Qualcomm SM8650 platform.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250110-topic-sm8650-ddr-bw-scaling-v1-1-041d836b084c@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-01-13 20:00:25 +02:00
Lijuan Gao
576a67fbec dt-bindings: interconnect: qcom-bwmon: Document QCS615 bwmon compatibles
Document QCS615 BWMONs, which includes one BWMONv4 instance for CPU to
LLCC path bandwidth monitoring and one BWMONv5 instance for LLCC to DDR
path bandwidth monitoring.

Signed-off-by: Lijuan Gao <quic_lijuang@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241218-add_bwmon_support_for_qcs615-v1-1-680d798a19e5@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-01-13 20:00:25 +02:00
Miguel Ojeda
08c035da54 docs: submitting-patches: clarify that signers may use their discretion on tags
Tags are really appreciated by maintainers in general, since it means
someone is willing to put their name on a commit, be it as a reviewer,
tester, etc.

However, signers (i.e. submitters carrying tags from previous versions
and maintainers applying patches) may need to take or drop tags, on a
case-by-case basis, for different reasons.

Yet this is not explicitly spelled out in the documentation, thus there
may be instances [1] where contributors may feel unwelcome.

Thus, to clarify, state this clearly.

Link: https://lore.kernel.org/rust-for-linux/CAEg-Je-h4NitWb2ErFGCOqt0KQfXuyKWLhpnNHCdRzZdxi018Q@mail.gmail.com/ [1]
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250112152946.761150-4-ojeda@kernel.org
2025-01-13 10:46:22 -07:00
Miguel Ojeda
25fb101385 docs: submitting-patches: clarify difference between Acked-by and Reviewed-by
Newcomers to the kernel need to learn the different tags that are
used in commit messages and when to apply them. Acked-by is sometimes
misunderstood, since the documentation did not really clarify (up to
the previous commit) when it should be used, especially compared to
Reviewed-by.

The previous commit already clarified who the usual providers of Acked-by
tags are, with examples. Thus provide a clarification paragraph for
the comparison with Reviewed-by, and give a couple examples reusing the
cases given above, in the previous commit.

Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250112152946.761150-3-ojeda@kernel.org
2025-01-13 10:46:22 -07:00
Miguel Ojeda
cd9123eeb2 docs: submitting-patches: clarify Acked-by and introduce "# Suffix"
Acked-by is typically used by maintainers. However, sometimes it is
useful to be able to accept the tag from other stakeholders that may not
have done a deep technical review or may not be kernel developers. For
instance:

  - People with domain knowledge, such as the original author of the
    code being modified.

  - Userspace-side reviewers for a kernel uAPI patch, like in DRM --
    see Documentation/gpu/drm-uapi.rst:

    > The userspace-side reviewer should also provide an Acked-by on the
    > kernel uAPI patch indicating that they believe the proposed uAPI
    > is sound and sufficiently documented and validated for userspace's
    > consumption.

  - Key users of a feature, such as in [1].

Thus clarify that Acked-by may be used by other stakeholders (but most
commonly by maintainers).

Since, in these cases, it may be confusing why an Acked-by is/was
provided, allow and suggest to provide a "# Suffix" explaining it.

The "# Suffix" for Acked-by is already being used to clarify what part
of the patch a maintainer is acknowledging, thus also mention "# Suffix"
in the relevant paragraph.

Link: https://lore.kernel.org/rust-for-linux/CANiq72m4fea15Z0fFZauz8N2madkBJ0G7Dc094OwoajnXmROOA@mail.gmail.com/ [1]
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250112152946.761150-2-ojeda@kernel.org
2025-01-13 10:46:22 -07:00
Greg Kroah-Hartman
f80aaf40e2 Documentation: bug-hunting.rst: remove odd contact information
At the bottom of the bug-hunting.rst file there is a "signature" which
doesn't seem to make much sense.  It seems to predate git, and perhaps
was from an earlier bug report that got copied into the document, but
now makes no sense so remove it.

Cc: greg@wind.rmcc.com
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Alex Shi <alexs@kernel.org>
Cc: Yanteng Si <si.yanteng@linux.dev>
Cc: Hu Haowen <2023002089@link.tyut.edu.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/2025011005-resistant-uncork-9814@gregkh
2025-01-13 10:43:53 -07:00
zhangwei
a2f80991e5 docs/zh_CN: Add sak index Chinese translation
Translate lwn/Documentation/security/sak.rst into Chinese

Update the translation through commit 4d3beaa06d
("docs: security: move some books to it and update")

Reviewed-by: Yanteng Si <si.yanteng@linux.dev>
Reviewed-by: Alex Shi <alexs@kernel.org>
Signed-off-by: zhangwei <zhangwei@cqsoftware.com.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250110100405.2225-1-zhangwei@cqsoftware.com.cn
2025-01-13 10:41:03 -07:00
Will Deacon
fd10f08cb5 Documentation: arm64: Remove stale and redundant virtual memory diagrams
The arm64 'memory.rst' file tries to document the virtual memory map
and the translation procedure for a couple of kernel configurations.

Unfortunately, the virtual memory map changes relatively frequently and
we support considerably more configurations than we did when the docs
were introduced (e.g. we now have support for 16KiB pages and 52-bit
addressing). Furthermore, the Arm ARM is the definitive resource for the
translation procedure and so there's little point in duplicating part
of that information in the kernel documentation.

Rather than continue trying (and failing) to maintain these diagrams,
let's rip them out. The kernel page-table can be dumped using
CONFIG_PTDUMP_DEBUGFS if necesssary.

Link: https://lore.kernel.org/r/20250102065554.1533781-1-sangmoon.kim@samsung.com
Reported-by: Sangmoon Kim <sangmoon.kim@samsung.com>
Signed-off-by: Will Deacon <will@kernel.org>
2025-01-13 16:40:30 +00:00
Ivaylo Ivanov
285035a8da dt-bindings: mmc: samsung,exynos-dw-mshc: add specific compatible for exynos8895
Add samsung,exynos8895-dw-mshc-smu specific compatible to the bindings
documentation. Since Samsung, as usual, likes reusing devices from older
designs, use the samsung,exynos7-dw-mshc-smu compatible.

Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/all/20250105161344.420749-2-ivo.ivanov.ivanov1@gmail.com/
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-01-13 16:07:57 +01:00
Shengjiu Wang
a1a771e5f1 ASoC: dt-bindings: fsl,mqs: Add compatible string for i.MX943 platform
There are two MQS instances on the i.MX943 platform.
The definition of bit positions in the control register are
different. In order to support these MQS modules, define
two compatible strings to distinguish them.

As one instance is in the always-on domain, another is in the
wakeup domain, so the compatible strings are
"fsl,imx943-aonmix-mqs", "fsl,imx943-wakeupmix-mqs".

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://patch.msgid.link/20250113090321.3193464-3-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-01-13 13:12:58 +00:00
Fabio Estevam
6758bd0692 dt-bindings: rtc: mxc: Document fsl,imx31-rtc
imx31.dtsi uses the following RTC compatible:

compatible = "fsl,imx31-rtc", "fsl,imx21-rtc";

Document 'fsl,imx31-rtc' to fix the following dt-schema warning:

'fsl,imx31-rtc' is not one of ['fsl,imx1-rtc', 'fsl,imx21-rtc']

Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20250112134027.1013213-1-festevam@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-01-13 09:34:52 +01:00
J. Neuschäfer
b7c1336e2e dt-bindings: gpio: fsl,qoriq-gpio: Add compatible string fsl,mpc8314-gpio
This is for the MPC831{4,5}{,E} SoCs.

Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250102-mpc83xx-v1-11-86f78ba2a7af@posteo.net
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-01-13 09:20:25 +01:00
J. Neuschäfer
267f2c5662 dt-bindings: gpio: fairchild,74hc595: Document chip select vs. latch clock
From looking at the data sheets, it is not obvious that CS# and latch
clock can be treated at the same, but doing so works fine and saves the
hassle of (1) trying to specify a SPI device without CS, and (2) adding
another property to drive the latch clock[1].

[1]: https://lore.kernel.org/lkml/20241213-gpio74-v1-2-fa2c089caf41@posteo.net/

Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241224-gpio74-v2-3-bbcf14183191@posteo.net
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-01-13 09:20:25 +01:00
Greg Kroah-Hartman
568bfce078 Merge 6.13-rc7 into tty-next
We need the serial driver fixes in here to build on top of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-13 06:46:26 +01:00
Greg Kroah-Hartman
dd19f4116e Merge 6.13-rc7 into driver-core-next
We need the debugfs / driver-core fixes in here as well for testing and
to build on top of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-13 06:40:34 +01:00