Commit Graph

1198 Commits

Author SHA1 Message Date
Linus Torvalds
4ea956963f Merge tag 'media/v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:

 - Removal of some old unused sensor drivers: ad9389b, m5mols, mt9m032,
   mt9t001, noon010pc30, s5k6aa, sr030pc30 and vs6624

 - New i.MX8 image sensor interface driver

 - Some new RC keymaps

 - lots of cleanups at atomisp driver to make it support standard
   features present on other webcam drivers

 - the cx18 and saa7146 now uses VB2

 - lots of cleanups and driver improvements

* tag 'media/v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (460 commits)
  media: ov5670: Fix probe on ACPI
  media: nxp: imx8-isi: Remove 300ms sleep after enabling channel
  media: nxp: imx8-isi: Replace udelay() with fsleep()
  media: nxp: imx8-isi: Drop partial support for i.MX8QM and i.MX8QXP
  media: nxp: Add i.MX8 ISI driver
  media: dt-bindings: media: Add i.MX8 ISI DT bindings
  media: atomisp: gmin_platform: Add Lenovo Ideapad Miix 310 gmin_vars
  media: atomisp: gmin_platform: Make DMI quirks take precedence over the _DSM table
  media: atomisp: Remove struct atomisp_sub_device index field
  media: atomisp: Drop support for streaming from 2 sensors at once
  media: atomisp: Remove atomisp_try_fmt() call from atomisp_set_fmt()
  media: atomisp: Remove unused ATOM_ISP_MAX_WIDTH_TMP and ATOM_ISP_MAX_HEIGHT_TMP
  media: atomisp: Remove snr_mbus_fmt local var from atomisp_try_fmt()
  media: atomisp: Remove custom V4L2_CID_FMT_AUTO control
  media: atomisp: Remove continuous mode related code from atomisp_set_fmt()
  media: atomisp: Remove duplicate atomisp_[start|stop]_streaming() prototypes
  media: atomisp: gc0310: Switch over to ACPI powermanagement
  media: atomisp: gc0310: Use devm_kzalloc() for data struct
  media: atomisp: gc0310: Add runtime-pm support
  media: atomisp: gc0310: Delay power-on till streaming is started
  ...
2023-04-25 16:27:13 -07:00
Linus Torvalds
c8cc58e289 Merge tag 'drm-next-2023-04-24' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
 "There is a new Qualcomm accel driver for their QAIC, dma-fence got a
  deadline feature added, lots of refactoring around fbdev emulation,
  and the usual pre-release hw enablements from AMD and Intel and fixes
  everywhere.

  New drivers:
   - add QAIC acceleration driver

  dma-buf:
   - constify kobj_type structs
   - Reject prime DMA-Buf attachment if get_sg_table is missing.

  fbdev:
   - cmdline parser fixes
   - implement fbdev emulation for GEM DMA drivers
   - always use shadow buffer in fbdev emulation helpers

  dma-fence:
   - add deadline hint to fences
   - signal private stub fence

  core:
   - improve DisplayID 2.0 and EDID parsing
   - add gem eviction function + callback
   - prep to convert shmem helper to GEM resv lock
   - move suballocator from radeon/amdgpu to core for Xe
   - HPD polling fixes
   - Documentation improvements
   - Add atomic enable_plane callback
   - use tgid instead of pid for client tracking
   - DP: Add SDP Error Detection Configuration Register
   - Add prime import/export to vram-helper
   - use pci aperture helpers in more drivers

  panel:
   - Radxa 8/10HD support
   - Samsung AMD495QA01 support
   - Elida KD50T048A
   - Sony TD4353
   - Novatek NT36523
   - STARRY 2081101QFH032011-53G
   - B133UAN01.0
   - AUO NE135FBM-N41

  i915:
   - More MTL enabling
   - fix s/r problems with MEI/PXP
   - Implement fb_dirty for PSR,FBC,DRRS fixes
   - Fix eDP+DSI dual panel systems
   - Fix issue #6333: "list_add corruption" and full system lockup from
     performance monitoring
   - Don't use stolen memory or BAR for ring buffers on LLC platforms
   - Make sure DSM size has correct 1MiB granularity on Gen12+
   - Whitelist COMMON_SLICE_CHICKEN3 for UMD access on Gen12+
   - Add engine TLB invalidation for Meteorlake
   - Fix GSC races on driver load/unload on Meteorlake+
   - Make kobj_type structures constant
   - Move fd_install after last use of fence
   - wm/vblank refactoring
   - display code refactoring
   - Create GSC submission targeting HDCP and PXP usages on MTL+
   - Enable HDCP2.x via GSC CS
   - Fix context runtime accounting on sysfs fdinfo for heavy workloads
   - Use i915 instead of dev_priv insied the file_priv structure
   - Replace fake flex-array with flexible-array member

  amdgpu:
   - Make kobj structures const
   - Generalize dmabuf import to work with KFD
   - Add capped/uncapped workload handling for supported APUs
   - Expose additional memory stats via fdinfo
   - Register vga_switcheroo for apple-gmux
   - Initial NBIO7.9, GC 9.4.3, GFXHUB 1.2, MMHUB 1.8 support
   - Initial DC FAM infrastructure
   - Link DC backlight to connector device rather than PCI device
   - Add sysfs nodes for secondary VCN clocks

  amdkfd:
   - Make kobj structures const
   - Support for exporting buffers via dmabuf
   - Multi-VMA page migration fixes
   - initial GC 9.4.3 support

  radeon:
   - iMac fix
   - convert to client based fbdev emulation

  habanalabs:
   - Add opcodes to the CS ioctl to allow user to stall/resume specific
     engines inside Gaudi2.
   - INFO ioctl the amount of device memory that the driver and f/w
     reserve for themselves.
   - INFO ioctl a bit-mask of the available rotator engines
   - INFO ioctl the register's address of the f/w that should be used to
     trigger interrupts
   - INFO ioctl two new opcodes to fetch information on h/w and f/w
     events
   - Enable graceful reset mechanism for compute-reset.
   - Align to the latest firmware specs.
   - Enforce the release order of the compute device and dma-buf.

  msm:
   - UBWC decoder programming rework
   - SM8550, SM8450 bindings update
   - uapi C++ fix
   - a3xx and a4xx devfreq support
   - GPU and GEM updates to avoid allocations which could trigger
     reclaim (shrinker) in fence signaling path
   - dma-fence deadline hint support and wait-boost
   - a640/650 speed bin support

  cirrus:
   - convert to regular atomic helpers
   - add damage clipping

  mediatek:
   - 10-bit overlay support
   - mt8195 support
   - Only trigger DRM HPD events if bridge is attached
   - Change the aux retries times when receiving AUX_DEFER

  rockchip:
   - add 4K support

  vc4:
   - use drm_gem_objects

  virtio:
   - allow KMS support to be disabled
   - add damage clipping

  vmwgfx:
   - buffer object lifetime fixes

  exynos:
   - move MIPI DSI driver to drm bridge for iMX sharing
   - use kernel fbdev emulation

  panfrost:
   - add support for mali MT81xx devices
   - add speed binning support

  lima:
   - add usage stats

  tegra:
   - fbdev client conversion

  vkms:
   - Add primary plane positioning support"

* tag 'drm-next-2023-04-24' of git://anongit.freedesktop.org/drm/drm: (1495 commits)
  drm/i915/dp_mst: Fix active port PLL selection for secondary MST streams
  drm/exynos: Implement fbdev emulation as in-kernel client
  drm/exynos: Initialize fbdev DRM client
  drm/exynos: Remove fb_helper from struct exynos_drm_private
  drm/exynos: Remove struct exynos_drm_fbdev
  drm/exynos: Remove exynos_gem from struct exynos_drm_fbdev
  drm/i915: Fix memory leaks in i915 selftests
  drm/i915: Make intel_get_crtc_new_encoder() less oopsy
  drm/i915/gt: Avoid out-of-bounds access when loading HuC
  drm/amdgpu: add some basic elements for multiple XCD case
  drm/amdgpu: move vmhub out of amdgpu_ring_funcs (v4)
  Revert "drm/amdgpu: enable ras for mp0 v13_0_10 on SRIOV"
  drm/amdgpu: add common ip block for GC 9.4.3
  drm/amd/display: Add logging when DP link training Clock recovery is Successful
  drm/amdgpu: add common early init support for GC 9.4.3
  drm/amdgpu: switch to v9_4_3 gfx_funcs callbacks for GC 9.4.3
  drm/amd/display: Add logging when setting DP sink power state fails
  drm/amdkfd: Add gfx_target_version for GC 9.4.3
  drm/amdkfd: Enable HW_UPDATE_RPTR on GC 9.4.3
  drm/amdgpu: reserve the old gc_11_0_*_mes.bin
  ...
2023-04-25 16:12:15 -07:00
Brian Masney
54d85d6966 docs: clk: add documentation to log which clocks have been disabled
The existing clk documentation has a section that talks about the
clk_ignore_unused kernel parameter. Add additional documentation that
describes how to log which clocks the kernel disables on bootup. This
will log messages like the following to the console on bootup:

    [    1.268115] clk: Disabling unused clocks
    [    1.272167] clk_disable: gcc_usb_clkref_en
    [    1.276389] clk_disable: gcc_usb30_sec_sleep_clk
    [    1.281131] clk_disable: gcc_usb30_prim_sleep_clk
    ...

Signed-off-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20230411192153.289688-1-bmasney@redhat.com
[jc: turned parameters into a literal block]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-04-20 17:53:38 -06:00
Florian Fainelli
b645fc696b Documentation: firmware: Clarify firmware path usage
Newline characters will be taken into account for the firmware search
path parameter, warn users about that and provide an example using 'echo
-n' such that it clarifies the typical use of that parameter.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230402135423.3235-1-f.fainelli@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-04-11 16:20:20 -06:00
Sakari Ailus
66c3b67a68 media: ccs: Document CCS static data file names
Document the firmware file names for CCS static data for CCS, SMIA++ and
SMIA devices.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-04-11 18:54:02 +02:00
Jonathan Corbet
ff61f0791c docs: move x86 documentation into Documentation/arch/
Move the x86 documentation under Documentation/arch/ as a way of cleaning
up the top-level directory and making the structure of our docs more
closely match the structure of the source directories it describes.

All in-kernel references to the old paths have been updated.

Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/20230315211523.108836-1-corbet@lwn.net/
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-03-30 12:58:51 -06:00
Daniel Vetter
82bbec189a Merge v6.3-rc4 into drm-next
I just landed the fence deadline PR from Rob that a bunch of drivers
want/need to apply driver-specific patches. Backmerge -rc4 so that
they don't have to be stuck on -rc2 for no reason at all.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2023-03-29 16:00:23 +02:00
Rob Clark
d71c11cc79 dma-buf/sync_file: Surface sync-file uABI
We had all of the internal driver APIs, but not the all important
userspace uABI, in the dma-buf doc.  Fix that.  And re-arrange the
comments slightly as otherwise the comments for the ioctl nr defines
would not show up.

v2: Fix docs build warning coming from newly including the uabi header
    in the docs build

Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2023-03-28 13:39:02 -07:00
Rob Clark
aec11c8d7c dma-buf/dma-fence: Add deadline awareness
Add a way to hint to the fence signaler of an upcoming deadline, such as
vblank, which the fence waiter would prefer not to miss.  This is to aid
the fence signaler in making power management decisions, like boosting
frequency as the deadline approaches and awareness of missing deadlines
so that can be factored in to the frequency scaling.

v2: Drop dma_fence::deadline and related logic to filter duplicate
    deadlines, to avoid increasing dma_fence size.  The fence-context
    implementation will need similar logic to track deadlines of all
    the fences on the same timeline.  [ckoenig]
v3: Clarify locking wrt. set_deadline callback
v4: Clarify in docs comment that this is a hint
v5: Drop DMA_FENCE_FLAG_HAS_DEADLINE_BIT.
v6: More docs
v7: Fix typo, clarify past deadlines

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
2023-03-25 10:55:07 -07:00
Jiri Pirko
d7ba3657d5 docs: vfio: fix header path
The text points to a different header file, fix by changing
the path to "uapi".

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20230310095857.985814-1-jiri@resnulli.us
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-03-14 11:31:57 -06:00
Linus Torvalds
4b8c673b76 Merge tag 'media/v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:

 - Removal of several VB1-only deprecated drivers: cpia2, fsl-viu, meye,
   stkwebcam, tm6000, vpfe_capture and zr364xx

 - saa7146 recovered from staging/deprecated. We opted to give ti a
   chance, and, instead of deprecating it, the intention is to write
   patches migrating it from VB1 to VB2.

 - av7110 returned from staging/deprecated/ to staging/ as we're not
   planning on dropping it any time soon

 - media controller API has gained experimental support for G_ROUTING
   and streams API. No drivers use it right now. We're planning to add
   one after -rc1, giving some time to experience the API and eventually
   have changes during the next development cycle

 - New sensor drivers: imx296, imx415, ov8858

 - Atomisp had lots of changes, specially on its sensor's interface,
   making atomisp sensor drivers closer to normal sensor drivers

 - media controller kAPI has gained some helpers to traverse pipelines

 - uvcvideo now better support power line control

 - lots of bug fixes, cleanups and driver improvements

* tag 'media/v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (296 commits)
  media: imx-mipi-csis: Check csis_fmt validity before use
  media: v4l2-subdev.c: clear stream field
  media: v4l2-ctrls-api.c: move ctrl->is_new = 1 to the correct line
  media: Revert "media: saa7146: deprecate hexium_gemini/orion, mxb and ttpci"
  media: Revert "media: av7110: move to staging/media/deprecated/saa7146"
  media: imx-pxp: convert to regmap
  media: imx-pxp: Use non-threaded IRQ
  media: imx-pxp: Introduce pxp_read() and pxp_write() wrappers
  media: imx-pxp: Implement frame size enumeration
  media: imx-pxp: Pass pixel format value to find_format()
  media: imx-pxp: Add media controller support
  media: imx-pxp: Don't set bus_info manually in .querycap()
  media: imx-pxp: Sort headers alphabetically
  media: imx-pxp: add support for i.MX7D
  media: imx-pxp: make data_path_ctrl0 platform dependent
  media: imx-pxp: disable LUT block
  media: imx-pxp: explicitly disable unused blocks
  media: imx-pxp: extract helper function to setup data path
  media: imx-pxp: detect PXP version
  media: dt-bindings: media: fsl-pxp: convert to yaml
  ...
2023-02-26 11:47:26 -08:00
Linus Torvalds
cac85e4616 Merge tag 'vfio-v6.3-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:

 - Remove redundant resource check in vfio-platform (Angus Chen)

 - Use GFP_KERNEL_ACCOUNT for persistent userspace allocations, allowing
   removal of arbitrary kernel limits in favor of cgroup control (Yishai
   Hadas)

 - mdev tidy-ups, including removing the module-only build restriction
   for sample drivers, Kconfig changes to select mdev support,
   documentation movement to keep sample driver usage instructions with
   sample drivers rather than with API docs, remove references to
   out-of-tree drivers in docs (Christoph Hellwig)

 - Fix collateral breakages from mdev Kconfig changes (Arnd Bergmann)

 - Make mlx5 migration support match device support, improve source and
   target flows to improve pre-copy support and reduce downtime (Yishai
   Hadas)

 - Convert additional mdev sysfs case to use sysfs_emit() (Bo Liu)

 - Resolve copy-paste error in mdev mbochs sample driver Kconfig (Ye
   Xingchen)

 - Avoid propagating missing reset error in vfio-platform if reset
   requirement is relaxed by module option (Tomasz Duszynski)

 - Range size fixes in mlx5 variant driver for missed last byte and
   stricter range calculation (Yishai Hadas)

 - Fixes to suspended vaddr support and locked_vm accounting, excluding
   mdev configurations from the former due to potential to indefinitely
   block kernel threads, fix underflow and restore locked_vm on new mm
   (Steve Sistare)

 - Update outdated vfio documentation due to new IOMMUFD interfaces in
   recent kernels (Yi Liu)

 - Resolve deadlock between group_lock and kvm_lock, finally (Matthew
   Rosato)

 - Fix NULL pointer in group initialization error path with IOMMUFD (Yan
   Zhao)

* tag 'vfio-v6.3-rc1' of https://github.com/awilliam/linux-vfio: (32 commits)
  vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd
  docs: vfio: Update vfio.rst per latest interfaces
  vfio: Update the kdoc for vfio_device_ops
  vfio/mlx5: Fix range size calculation upon tracker creation
  vfio: no need to pass kvm pointer during device open
  vfio: fix deadlock between group lock and kvm lock
  vfio: revert "iommu driver notify callback"
  vfio/type1: revert "implement notify callback"
  vfio/type1: revert "block on invalid vaddr"
  vfio/type1: restore locked_vm
  vfio/type1: track locked_vm per dma
  vfio/type1: prevent underflow of locked_vm via exec()
  vfio/type1: exclude mdevs from VFIO_UPDATE_VADDR
  vfio: platform: ignore missing reset if disabled at module init
  vfio/mlx5: Improve the target side flow to reduce downtime
  vfio/mlx5: Improve the source side flow upon pre_copy
  vfio/mlx5: Check whether VF is migratable
  samples: fix the prompt about SAMPLE_VFIO_MDEV_MBOCHS
  vfio/mdev: Use sysfs_emit() to instead of sprintf()
  vfio-mdev: add back CONFIG_VFIO dependency
  ...
2023-02-25 11:52:57 -08:00
Linus Torvalds
84cc6674b7 Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:

 - device feature provisioning in ifcvf, mlx5

 - new SolidNET driver

 - support for zoned block device in virtio blk

 - numa support in virtio pmem

 - VIRTIO_F_RING_RESET support in vhost-net

 - more debugfs entries in mlx5

 - resume support in vdpa

 - completion batching in virtio blk

 - cleanup of dma api use in vdpa

 - now simulating more features in vdpa-sim

 - documentation, features, fixes all over the place

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (64 commits)
  vdpa/mlx5: support device features provisioning
  vdpa/mlx5: make MTU/STATUS presence conditional on feature bits
  vdpa: validate device feature provisioning against supported class
  vdpa: validate provisioned device features against specified attribute
  vdpa: conditionally read STATUS in config space
  vdpa: fix improper error message when adding vdpa dev
  vdpa/mlx5: Initialize CVQ iotlb spinlock
  vdpa/mlx5: Don't clear mr struct on destroy MR
  vdpa/mlx5: Directly assign memory key
  tools/virtio: enable to build with retpoline
  vringh: fix a typo in comments for vringh_kiov
  vhost-vdpa: print warning when vhost_vdpa_alloc_domain fails
  scsi: virtio_scsi: fix handling of kmalloc failure
  vdpa: Fix a couple of spelling mistakes in some messages
  vhost-net: support VIRTIO_F_RING_RESET
  vhost-scsi: convert sysfs snprintf and sprintf to sysfs_emit
  vdpa: mlx5: support per virtqueue dma device
  vdpa: set dma mask for vDPA device
  virtio-vdpa: support per vq dma device
  vdpa: introduce get_vq_dma_device()
  ...
2023-02-25 11:48:02 -08:00
Linus Torvalds
8ff99ad04c Merge tag 'phy-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy updates from Vinod Koul:
 "This features a bunch of new device support, a couple of new drivers,
  yaml conversion and updates of a few drivers.

  Core support:

   - New devm_of_phy_optional_get() API with users and conversion

  New hardware support:

   - Mediatek MT7986 phy support

   - Qualcomm SM8550 UFS, PCIe, combo phy support, SM6115 / SM4250 USB3
     phy support, SM6350 combo phy support, SM6125 UFS PHY support amd
     SM8350 & SM8450 combo phy support

   - Qualcomm SNPS eUSB2 eUSB2 repeater drivers

   - Allwinner F1C100s USB PHY support

   - Tegra xusb support for Tegra234

  Updates:

   - Yaml conversion for Qualcomm pcie2 phy and usb-hsic-phy

   - G4 mode support in Qualcomm UFS phy and support for various SoCs

   - Yaml conversion for Meson usb2 phy

   - TI Type C support for usb phy for j721

   - Yaml conversion for Tegra xusb binding"

* tag 'phy-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (106 commits)
  phy: qcom: phy-qcom-snps-eusb2: Add support for eUSB2 repeater
  phy: qcom: Add QCOM SNPS eUSB2 repeater driver
  dt-bindings: phy: qcom,snps-eusb2-phy: Add phys property for the repeater
  dt-bindings: phy: Add qcom,snps-eusb2-repeater schema file
  dt-bindings: phy: amlogic,g12a-usb3-pcie-phy: add missing optional phy-supply property
  phy: rockchip-typec: Fix unsigned comparison with less than zero
  phy: rockchip-typec: fix tcphy_get_mode error case
  phy: qcom: snps-eusb2: Add missing headers
  phy: qcom-qmp-combo: Add support for SM8550
  phy: qcom-qmp: Add v6 DP register offsets
  phy: qcom-qmp: pcs-usb: Add v6 register offsets
  dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Document SM8550 compatible
  phy: qcom: Add QCOM SNPS eUSB2 driver
  dt-bindings: phy: Add qcom,snps-eusb2-phy schema file
  phy: qcom-qmp-pcie: Add support for SM8550 g3x2 and g4x2 PCIEs
  phy: qcom-qmp: qserdes-lane-shared: Add v6 register offsets
  phy: qcom-qmp: qserdes-txrx: Add v6.20 register offsets
  phy: qcom-qmp: pcs-pcie: Add v6.20 register offsets
  phy: qcom-qmp: pcs-pcie: Add v6 register offsets
  phy: qcom-qmp: pcs: Add v6.20 register offsets
  ...
2023-02-24 17:22:11 -08:00
Linus Torvalds
17cd4d6f05 Merge tag 'tty-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH:
 "Here is the big set of serial and tty driver updates for 6.3-rc1.

  Once again, Jiri and Ilpo have done a number of core vt and tty/serial
  layer cleanups that were much needed and appreciated. Other than that,
  it's just a bunch of little tty/serial driver updates:

   - qcom-geni-serial driver updates

   - liteuart driver updates

   - hvcs driver cleanups

   - n_gsm updates and additions for new features

   - more 8250 device support added

   - fpga/dfl update and additions

   - imx serial driver updates

   - fsl_lpuart updates

   - other tiny fixes and updates for serial drivers

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

* tag 'tty-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (143 commits)
  tty: n_gsm: add keep alive support
  serial: imx: remove a redundant check
  dt-bindings: serial: snps-dw-apb-uart: add dma & dma-names properties
  soc: qcom: geni-se: Move qcom-geni-se.h to linux/soc/qcom/geni-se.h
  tty: n_gsm: add TIOCMIWAIT support
  tty: n_gsm: add RING/CD control support
  tty: n_gsm: mark unusable ioctl structure fields accordingly
  serial: imx: get rid of registers shadowing
  serial: imx: refine local variables in rxint()
  serial: imx: stop using USR2 in FIFO reading loop
  serial: imx: remove redundant USR2 read from FIFO reading loop
  serial: imx: do not break from FIFO reading loop prematurely
  serial: imx: do not sysrq broken chars
  serial: imx: work-around for hardware RX flood
  serial: imx: factor-out common code to imx_uart_soft_reset()
  serial: 8250_pci1xxxx: Add power management functions to quad-uart driver
  serial: 8250_pci1xxxx: Add RS485 support to quad-uart driver
  serial: 8250_pci1xxxx: Add driver for quad-uart support
  serial: 8250_pci: Add serial8250_pci_setup_port definition in 8250_pcilib.c
  tty: pcn_uart: fix memory leak with using debugfs_lookup()
  ...
2023-02-24 12:17:14 -08:00
Linus Torvalds
70756b49be Merge tag 'docs-6.3' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
 "It has been a moderately calm cycle for documentation; the significant
  changes include:

   - Some significant additions to the memory-management documentation

   - Some improvements to navigation in the HTML-rendered docs

   - More Spanish and Chinese translations

  ... and the usual set of typo fixes and such"

* tag 'docs-6.3' of git://git.lwn.net/linux: (68 commits)
  Documentation/watchdog/hpwdt: Fix Format
  Documentation/watchdog/hpwdt: Fix Reference
  Documentation: core-api: padata: correct spelling
  docs/mm: Physical Memory: correct spelling in reference to CONFIG_PAGE_EXTENSION
  docs: Use HTML comments for the kernel-toc SPDX line
  docs: Add more information to the HTML sidebar
  Documentation: KVM: Update AMD memory encryption link
  printk: Document that CONFIG_BOOT_PRINTK_DELAY required for boot_delay=
  Documentation: userspace-api: correct spelling
  Documentation: sparc: correct spelling
  Documentation: driver-api: correct spelling
  Documentation: admin-guide: correct spelling
  docs: add workload-tracing document to admin-guide
  docs/admin-guide/mm: remove useless markup
  docs/mm: remove useless markup
  docs/mm: Physical Memory: remove useless markup
  docs/sp_SP: Add process magic-number translation
  docs: ftrace: always use canonical ftrace path
  Doc/damon: fix the data path error
  dma-buf: Add "dma-buf" to title of documentation
  ...
2023-02-22 12:00:20 -08:00
Linus Torvalds
d5176cdbf6 Merge tag 'pinctrl-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
 "Nothing special, notably a lot of new Qualcomm hardware is supported,
  a RISC-V reference SoC and then some cleanups both in code and device
  tree bindings.

  Core changes:

   - Add PINCTRL_PINFUNCTION() macro and use it in several drivers

  New drivers:

   - New driver for the StarFive JH7110 SoC "sys" and "aon" (always-on)
     pin controllers. (RISC-V.)

   - New subdriver for the Qualcomm QDU1000/QRU1000 SoC pin controller

   - New subdrivers for the Qualcomm SM8550 SoC and LPASS pin
     controllers

   - New subdriver for the Qualcomm SA8775P SoC pin controller

   - New subdriver for the Qualcomm IPQ5332 SoC pin controller

   - New (trivial) support for Qualcomm PM8550 and PMR735D PMIC pin
     control

   - New subdriver for the Mediatek MT7981 SoC pin controller

  Improvements:

   - Several cleanups and refactorings to the Intel drivers

   - Add 4KOhm bias support to the Intel driver

   - Use the NOIRQ_SYSTEM_SLEEP_PM_OPS for the AT91 driver

   - Support general purpose clocks in the Qualcomm MSM8226 SoC

   - Several conversions to use the new I2C .probe_new() call

   - Massive clean-up of the Qualcomm Device Tree YAML schemas

   - Add VIN[45] pins, groups and functions to the Renesas r8a77950 SoC
     driver"

* tag 'pinctrl-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (118 commits)
  pinctrl: qcom: Add support for i2c specific pull feature
  pinctrl: starfive: Add StarFive JH7110 aon controller driver
  pinctrl: starfive: Add StarFive JH7110 sys controller driver
  dt-bindings: pinctrl: Add StarFive JH7110 aon pinctrl
  dt-bindings: pinctrl: Add StarFive JH7110 sys pinctrl
  pinctrl: add mt7981 pinctrl driver
  dt-bindings: pinctrl: add bindings for MT7981 SoC
  dt-bindings: pinctrl: rockchip,pinctrl: mark gpio sub nodes of pinctrl as deprecated
  pinctrl: qcom: Introduce IPQ5332 TLMM driver
  dt-bindings: pinctrl: qcom: add IPQ5332 pinctrl
  dt-bindings: pinctrl: qcom: lpass-lpi: correct GPIO name pattern
  pinctrl: qcom: pinctrl-sm8550-lpass-lpi: add SM8550 LPASS
  dt-bindings: pinctrl: qcom,sm8550-lpass-lpi-pinctrl: add SM8550 LPASS
  pinctrl: at91: use devm_kasprintf() to avoid potential leaks
  dt-bindings: pinctrl: qcom: correct gpio-ranges in examples
  dt-bindings: pinctrl: qcom,msm8994: correct number of GPIOs
  dt-bindings: pinctrl: qcom,sdx55: correct GPIO name pattern
  dt-bindings: pinctrl: qcom,msm8953: correct GPIO name pattern
  dt-bindings: pinctrl: qcom,sm6375: correct GPIO name pattern and example
  dt-bindings: pinctrl: qcom,msm8909: correct GPIO name pattern and example
  ...
2023-02-22 11:05:56 -08:00
Linus Torvalds
17bbc46fc9 Merge tag 'gpio-updates-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
 "A rather small update, there are no new drivers, just improvements and
  refactoring in existing ones.

  Thanks to migrating of several drivers to using generalized APIs and
  dropping of OF interfaces in favor of using software nodes we're
  actually removing more code than we're adding.

  Core GPIOLIB:
   - drop several OF interfaces after moving a significant part of the
     code to using software nodes
   - remove more interfaces referring to the global GPIO numberspace
     that we're getting rid of
   - improvements in the gpio-regmap library
   - add helper for GPIO device reference counting
   - remove unused APIs
   - minor tweaks like sorting headers alphabetically

  Extended support in existing drivers:
   - add support for Tegra 234 PMC to gpio-tegra186

  Driver improvements:
   - migrate the 104-dio/idi family of drivers to using the regmap-irq
     API
   - migrate gpio-i8255 and gpio-mm to the GPIO regmap API
   - clean-ups in gpio-pca953x
   - remove duplicate assignments of of_gpio_n_cells in gpio-davinci,
     gpio-ge, gpio-xilinx, gpio-zevio and gpio-wcd934x
   - improvements to gpio-pcf857x: implement get/set_multiple callbacks,
     use generic device properties instead of OF + minor tweaks
   - fix OF-related header includes and Kconfig dependencies in
     gpio-zevio
   - dynamically allocate the GPIO base in gpio-omap
   - use a dedicated printf specifier for printing fwnode info in
     gpio-sim
   - use dev_name() for the GPIO chip label in gpio-vf610
   - other minor tweaks and fixes

  Documentation:
   - remove mentions of legacy API from comments in various places
   - convert the DT binding documents to YAML schema for Fujitsu
     MB86S7x, Unisoc GPIO and Unisoc EIC
   - document the Unisoc UMS512 controller in DT bindings"

* tag 'gpio-updates-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (54 commits)
  gpio: sim: Use %pfwP specifier instead of calling fwnode API directly
  gpio: tegra186: remove unneeded loop in tegra186_gpio_init_route_mapping()
  gpiolib: of: Move enum of_gpio_flags to its only user
  gpio: mvebu: Use IS_REACHABLE instead of IS_ENABLED for CONFIG_PWM
  gpio: zevio: Add missing header
  gpio: Get rid of gpio_to_chip()
  gpio: pcf857x: Drop unneeded explicit casting
  gpio: pcf857x: Make use of device properties
  gpio: pcf857x: Get rid of legacy platform data
  gpio: rockchip: Do not mention legacy API in the code
  gpio: wcd934x: Remove duplicate assignment of of_gpio_n_cells
  gpio: zevio: Use proper headers and drop OF_GPIO dependency
  gpio: zevio: Remove duplicate assignment of of_gpio_n_cells
  gpio: xilinx: Remove duplicate assignment of of_gpio_n_cells
  dt-bindings: gpio: Add compatible string for Unisoc UMS512
  dt-bindings: gpio: Convert Unisoc EIC controller binding to yaml
  dt-bindings: gpio: Convert Unisoc GPIO controller binding to yaml
  gpio: ge: Remove duplicate assignment of of_gpio_n_cells
  gpio: davinci: Remove duplicate assignment of of_gpio_n_cells
  gpio: omap: use dynamic allocation of base
  ...
2023-02-22 11:01:17 -08:00
Linus Torvalds
69308402ca Merge tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:

 - AMD PMC: Improvements to aid s2idle debugging

 - Dell WMI-DDV: hwmon support

 - INT3472 camera sensor power-management: Improve privacy LED support

 - Intel VSEC: Base TPMI (Topology Aware Register and PM Capsule
   Interface) support

 - Mellanox: SN5600 and Nvidia L1 switch support

 - Microsoft Surface Support: Various cleanups + code improvements

 - tools/intel-speed-select: Various improvements

 - Miscellaneous other cleanups / fixes

* tag 'platform-drivers-x86-v6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (80 commits)
  platform/x86: nvidia-wmi-ec-backlight: Add force module parameter
  platform/x86/amd/pmf: Add depends on CONFIG_POWER_SUPPLY
  platform/x86: dell-ddv: Prefer asynchronous probing
  platform/x86: dell-ddv: Add hwmon support
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform: mellanox: mlx-platform: Move bus shift assignment out of the loop
  platform: mellanox: mlx-platform: Add mux selection register to regmap
  platform_data/mlxreg: Add field with mapped resource address
  platform/mellanox: mlxreg-hotplug: Allow more flexible hotplug events configuration
  platform: mellanox: Extend all systems with I2C notification callback
  platform: mellanox: Split logic in init and exit flow
  platform: mellanox: Split initialization procedure
  platform: mellanox: Introduce support of new Nvidia L1 switch
  platform: mellanox: Introduce support for next-generation 800GB/s switch
  platform: mellanox: Cosmetic changes - rename to more common name
  platform: mellanox: Change "reset_pwr_converter_fail" attribute
  platform: mellanox: Introduce support for rack manager switch
  MAINTAINERS: dell-wmi-sysman: drop Divya Bharathi
  x86/platform/uv: Make kobj_type structure constant
  platform/x86: think-lmi: Make kobj_type structure constant
  ...
2023-02-21 17:32:50 -08:00
Linus Torvalds
1b72607d73 Merge tag 'thermal-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
 "The majority of changes here are related to the general switch-over to
  using arrays of generic trip point structures registered along with a
  thermal zone instead of trip point callbacks (this has been done
  mostly by Daniel Lezcano with some help from yours truly on the Intel
  drivers front).

  Apart from that and the related reorganization of code, there are some
  enhancements of the existing driver and a new Mediatek Low Voltage
  Thermal Sensor (LVTS) driver. The Intel powerclamp undergoes a major
  rework so it will use the generic idle_inject facility for CPU idle
  time injection going forward and it will take additional module
  parameters for specifying the subset of CPUs to be affected by it
  (work done by Srinivas Pandruvada).

  Also included are assorted fixes and a whole bunch of cleanups.

  Specifics:

   - Rework a large bunch of drivers to use the generic thermal trip
     structure and use the opportunity to do more cleanups by removing
     unused functions from the OF code (Daniel Lezcano)

   - Remove core header inclusion from drivers (Daniel Lezcano)

   - Fix some locking issues related to the generic thermal trip rework
     (Johan Hovold)

   - Fix a crash when requesting the critical temperature on tegra,
     which is related to the generic trip point work (Jon Hunter)

   - Clean up thermal device unregistration code (Viresh Kumar)

   - Fix and clean up thermal control core initialization error code
     paths (Daniel Lezcano)

   - Relocate the trip points handling code into a separate file (Daniel
     Lezcano)

   - Make the thermal core fail registration of thermal zones and
     cooling devices if the thermal class has not been registered
     (Rafael Wysocki)

   - Add trip point initialization helper functions for ACPI-defined
     trip points and modify two thermal drivers to use them (Rafael
     Wysocki, Daniel Lezcano)

   - Make the core thermal control code use sysfs_emit_at() instead of
     scnprintf() where applicable (ye xingchen)

   - Consolidate code accessing the Intel TCC (Thermal Control
     Circuitry) MSRs by introducing library functions for that and
     making the TCC-related code in thermal drivers use them (Zhang Rui)

   - Enhance the x86_pkg_temp_thermal driver to support dynamic tjmax
     changes (Zhang Rui)

   - Address an "unsigned expression compared with zero" warning in the
     intel_soc_dts_iosf thermal driver (Yang Li)

   - Update comments regarding two functions in the Intel Menlow thermal
     driver (Deming Wang)

   - Use sysfs_emit_at() instead of scnprintf() in the int340x thermal
     driver (ye xingchen)

   - Make the intel_pch thermal driver support the Wellsburg PCH (Tim
     Zimmermann)

   - Modify the intel_pch and processor_thermal_device_pci thermal
     drivers use generic trip point tables instead of thermal zone trip
     point callbacks (Daniel Lezcano)

   - Add production mode attribute sysfs attribute to the int340x
     thermal driver (Srinivas Pandruvada)

   - Rework dynamic trip point updates handling and locking in the
     int340x thermal driver (Rafael Wysocki)

   - Make the int340x thermal driver use a generic trip points table
     instead of thermal zone trip point callbacks (Rafael Wysocki,
     Daniel Lezcano)

   - Clean up and improve the int340x thermal driver (Rafael Wysocki)

   - Simplify and clean up the intel_pch thermal driver (Rafael Wysocki)

   - Fix the Intel powerclamp thermal driver and make it use the common
     idle injection framework (Srinivas Pandruvada)

   - Add two module parameters, cpumask and max_idle, to the Intel
     powerclamp thermal driver to allow it to affect only a specific
     subset of CPUs instead of all of them (Srinivas Pandruvada)

   - Make the Intel quark_dts thermal driver Use generic trip point
     objects instead of its own trip point representation (Daniel
     Lezcano)

   - Add toctree entry for thermal documents and fix two issues in the
     Intel powerclamp driver documentation (Bagas Sanjaya)

   - Use strscpy() to instead of strncpy() in the thermal core (Xu
     Panda)

   - Fix thermal_sampling_exit() (Vincent Guittot)

   - Add Mediatek Low Voltage Thermal Sensor (LVTS) driver (Balsam
     Chihi)

   - Add r8a779g0 RCar support to the rcar_gen3 thermal driver (Geert
     Uytterhoeven)

   - Fix useless call to set_trips() when resuming in the rcar_gen3
     thermal control driver and add interrupt support detection at init
     time to it (Niklas Söderlund)

   - Fix memory corruption in the hi3660 thermal driver (Yongqin Liu)

   - Fix include path for libnl3 in pkg-config file for libthermal
     (Vibhav Pant)

   - Remove syscfg-based driver for st as the platform is not supported
     any more (Alain Volmat)"

* tag 'thermal-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (135 commits)
  thermal/drivers/st: Remove syscfg based driver
  thermal: Remove core header inclusion from drivers
  tools/lib/thermal: Fix include path for libnl3 in pkg-config file.
  thermal/drivers/hisi: Drop second sensor hi3660
  thermal/drivers/rcar_gen3_thermal: Fix device initialization
  thermal/drivers/rcar_gen3_thermal: Create device local ops struct
  thermal/drivers/rcar_gen3_thermal: Do not call set_trips() when resuming
  thermal/drivers/rcar_gen3: Add support for R-Car V4H
  dt-bindings: thermal: rcar-gen3-thermal: Add r8a779g0 support
  thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver
  dt-bindings: thermal: mediatek: Add LVTS thermal controllers
  thermal/drivers/mediatek: Relocate driver to mediatek folder
  tools/lib/thermal: Fix thermal_sampling_exit()
  Documentation: powerclamp: Fix numbered lists formatting
  Documentation: powerclamp: Escape wildcard in cpumask description
  Documentation: admin-guide: Add toctree entry for thermal docs
  thermal: intel: powerclamp: Add two module parameters
  Documentation: admin-guide: Move intel_powerclamp documentation
  thermal: core: Use sysfs_emit_at() instead of scnprintf()
  thermal: intel: powerclamp: Fix duration module parameter
  ...
2023-02-21 12:32:05 -08:00
Bagas Sanjaya
2b034e82ff docs: driver-api: virtio: commentize spec version checking
A sentence that checks for later spec version is meant for developers
hacking the documentation source. Make it comment block (hidden from
actual output).

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Message-Id: <20221220095828.27588-4-bagasdotme@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-02-20 19:26:57 -05:00
Bagas Sanjaya
ae8d2247af docs: driver-api: virtio: slightly reword virtqueues allocation paragraph
"It's at this stage that" means "At this point", so use the latter as it
is more effective.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Message-Id: <20221220095828.27588-3-bagasdotme@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-02-20 19:26:56 -05:00
Bagas Sanjaya
fb25d45694 docs: driver-api: virtio: parenthesize external reference targets
Parenthesize targets to links in "References" section to distinguish
them from remaining texts.

While at it, describe the second target.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Message-Id: <20221220095828.27588-2-bagasdotme@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-02-20 19:26:56 -05:00
Daniel Starke
72206cc730 tty: n_gsm: add keep alive support
n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010.
See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1516
The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to
the newer 27.010 here. Chapters 5.4.6.3.4 and 5.1.8.1.3 describe the test
command which can be used to test the mux connection between both sides.

Currently, no algorithm is implemented to make use of this command. This
requires that each multiplexed upper layer protocol supervises the
underlying muxer connection to handle possible connection losses.

Introduce ioctl commands and functions to optionally enable keep alive
handling via the test command as described in chapter 5.4.6.3.4. A single
incrementing octet "ka_num" is being used for unique identification of each
single keep alive packet. Retries will use the same "ka_num" value as the
original packet. Retry count and interval are taken from the general
parameters N2 and T2.

Add usage description and basic example for the new ioctl to the n_gsm
documentation.

Note that support for the test command is mandatory and already present in
the muxer implementation since the very first version.
Also note that the previous ioctl structure gsm_config cannot be extended
due to missing checks against zero of the field "unused".

Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20230214122737.1976-1-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-16 13:50:50 +01:00
Ricardo Cañuelo
d16c0cd273 docs: driver-api: virtio: virtio on Linux
Basic doc about Virtio on Linux and a short tutorial on Virtio drivers.

includes the following fixup:

virtio: fix virtio_config_ops kerneldocs

Fixes two warning messages when building htmldocs:

    warning: duplicate section name 'Note'
    warning: expecting prototype for virtio_config_ops().
             Prototype was for vq_callback_t() instead

Message-Id: <20221010064359.1324353-2-ricardo.canuelo@collabora.com>
Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20221220100035.2712449-1-ricardo.canuelo@collabora.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-02-15 06:46:22 -05:00
Srinivas Pandruvada
707bf8e1df Documentation: admin-guide: Move intel_powerclamp documentation
Create a folder "thermal" under Documentation/admin-guide and move
intel_powerclamp documentation to this folder.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-02-09 20:53:39 +01:00
Yi Liu
c55365a093 docs: vfio: Update vfio.rst per latest interfaces
this imports the latest vfio_device_ops definition to vfio.rst.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20230209081210.141372-3-yi.l.liu@intel.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2023-02-09 11:49:48 -07:00
Laurent Pinchart
b516354542 media: mc: entity: Fix minor issues in comments and documentation
Commit ae21987283 ("media: mc: entity: Rewrite
media_pipeline_start()") incorrectly referred to entity instead of pad
in a comment, and forgot to update a second comment accordingly when
moving the pipe from entity to pad. Furthermore, it didn't properly
reflow the documentation text it updated.

Fix those small issues.

Fixes: ae21987283 ("media: mc: entity: Rewrite media_pipeline_start()")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2023-02-06 08:37:12 +01:00
Geert Uytterhoeven
d02aa181ee phy: Add devm_of_phy_optional_get() helper
Add an optional variant of devm_of_phy_get() that also takes care of
printing real errors, so drivers no longer have to open-code this
operation.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/4cd0069bcff424ffc5c3a102397c02370b91985b.1674584626.git.geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-02-03 10:52:49 +05:30
Geert Uytterhoeven
59c3d3d00d doc: phy: Document devm_of_phy_get()
Add the missing documentation for devm_of_phy_get(), which was forgotten
when the function was introduced.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/768d5845668f081620098a0b4479d1481e212bac.1674584626.git.geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-02-03 10:52:49 +05:30
Geert Uytterhoeven
1bd9a7b4af phy: Remove unused phy_optional_get()
There were never any upstream users of this function since its
introduction almost 10 years ago.

Besides, the dummy for phy_optional_get() should have returned NULL
instead of an error code.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/df61992b1d66bccf4e6e1eafae94a7f7d7629f34.1674584626.git.geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-02-03 10:52:49 +05:30
Maximilian Luz
b09ee1cd59 platform/surface: aggregator: Rename top-level request functions to avoid ambiguities
We currently have a struct ssam_request_sync and a function
ssam_request_sync(). While this is valid C, there are some downsides to
it.

One of these is that current Sphinx versions (>= 3.0) cannot
disambiguate between the two (see disucssion and pull request linked
below). It instead emits a "WARNING: Duplicate C declaration" and links
for the struct and function in the resulting documentation link to the
same entry (i.e. both to either function or struct documentation)
instead of their respective own entries.

While we could just ignore that and wait for a fix, there's also a point
to be made that the current naming can be somewhat confusing when
searching (e.g. via grep) or trying to understand the levels of
abstraction at play:

We currently have struct ssam_request_sync and associated functions
ssam_request_sync_[alloc|free|init|wait|...]() operating on this struct.
However, function ssam_request_sync() is one abstraction level above
this. Similarly, ssam_request_sync_with_buffer() is not a function
operating on struct ssam_request_sync, but rather a sibling to
ssam_request_sync(), both using the struct under the hood.

Therefore, rename the top level request functions:

  ssam_request_sync() -> ssam_request_do_sync()
  ssam_request_sync_with_buffer() -> ssam_request_do_sync_with_buffer()
  ssam_request_sync_onstack() -> ssam_request_do_sync_onstack()

Link: https://lore.kernel.org/all/085e0ada65c11da9303d07e70c510dc45f21315b.1656756450.git.mchehab@kernel.org/
Link: https://github.com/sphinx-doc/sphinx/pull/8313
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221220175608.1436273-2-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-02 22:48:20 +01:00
Maximilian Luz
3f88b459a7 platform/surface: aggregator: Improve documentation and handling of message target and source IDs
The `tid_in` and `tid_out` fields of the serial hub protocol command
struct (struct ssh_command) are actually source and target IDs,
indicating the peer from which the message originated and the peer for
which it is intended.

Change the naming of those fields accordingly and improve the protocol
documentation. Additionally, introduce an enum containing all currently
known peers, i.e. targets and sources.

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221202223327.690880-3-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-02 22:48:20 +01:00
Randy Dunlap
7852fe3a09 Documentation: driver-api: correct spelling
Correct spelling problems for Documentation/driver-api/ as reported
by codespell.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: nvdimm@lists.linux.dev
Cc: Vinod Koul <vkoul@kernel.org>
Cc: dmaengine@vger.kernel.org
Cc: linux-raid@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20230129231053.20863-3-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-02-02 11:05:16 -07:00
Jonathan Neuschäfer
7ee6095fe8 dma-buf: Add "dma-buf" to title of documentation
To make it easier to find the dma-buf documentation when looking through
tables-of-contents etc., put the name "dma-buf" in the title.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20230129115917.1229529-1-j.neuschaefer@gmx.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-01-31 13:56:05 -07:00
Andy Shevchenko
a5ec171efd gpio: Remove unused and obsoleted irq_to_gpio()
irq_to_gpio() is legacy and unused API, remove it for good.

This leaves gpio_to_irq() as it's used yet in many places.
Nevertheless, removal of its counterpart is a good signal
to whoever even trying to consider using them that do not.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-01-30 15:55:29 +01:00
Andy Shevchenko
f2527d8f56 gpio: Remove unused and obsoleted gpio_export_link()
gpio_export_link() is legacy and unused API, remove it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-01-30 15:55:29 +01:00
Srinivas Pandruvada
5c36cf2784 thermal: intel: int340x: Add production mode attribute
It is possible that the system manufacturer locks down thermal tuning
beyond what is usually done on the given platform. In that case user
space calibration tools should not try to adjust the thermal
configuration of the system.

To allow user space to check if that is the case, add a new sysfs
attribute "production_mode" that will be present when the ACPI DCFG
method is present under the INT3400 device object in the ACPI Namespace.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-01-26 14:47:16 +01:00
SeongJae Park
4f46ae9f3a Docs/driver-api/index: Add missing SPDX License Identifier
Add missing SPDX License Identifier for driver-api documentation index
file.

Signed-off-by: SeongJae Park <sj@kernel.org>
Link: https://lore.kernel.org/r/20230122213650.187710-3-sj@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-01-24 15:28:28 -07:00
SeongJae Park
941c95fdd6 Docs/subsystem-apis: Remove '[The ]Linux' prefixes from titles of listed documents
Some documents that listed on subsystem-apis have 'Linux' or 'The Linux'
title prefixes.  It's duplicated information, and makes finding the
document of interest with human eyes not easy.  Remove the prefixes from
the titles.

Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: Iwona Winiarska <iwona.winiarska@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230122184834.181977-1-sj@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-01-24 15:27:08 -07:00
Christoph Hellwig
3232868133 vfio-mdev: remove an non-existing driver from vfio-mediated-device
The nvidia mdev driver does not actually exist anywhere in the tree.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Link: https://lore.kernel.org/r/20230110091009.474427-5-hch@lst.de
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2023-01-23 11:26:29 -07:00
Christoph Hellwig
0030d7d6ce vfio-mdev: move the mtty usage documentation
Move the documentation on how to use mtty to samples/vfio-mdev/README.rst
as it is in no way related to the vfio API.  This matches how the bpf
and pktgen samples are documented.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230110091009.474427-4-hch@lst.de
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2023-01-23 11:26:29 -07:00
Hans Verkuil
9ea8a9c72a media: cpia2: remove deprecated driver
The cpia2 driver does not use the vb2 framework for streaming
video, instead it implements this in the driver. This is error prone,
and nobody stepped in to convert this driver to that framework.

The hardware is very old, so the decision was made to remove it
altogether.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2023-01-22 09:55:00 +01:00
Tomi Valkeinen
70283e99a9 media: Documentation: add multiplexed streams documentation
Add documentation related to multiplexed streams.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2023-01-22 09:36:35 +01:00
Bagas Sanjaya
88f8ac47bd pinctrl: Proofreading and updating the documentation (part 2)
Do the following:
- update the "Definitions" style in two sections
- don't use "I" for technical documentation
- inline the remaining (variables, function names, file paths)

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-01-17 17:42:29 +02:00
Andy Shevchenko
af6f64c68b pinctrl: Proofreading and updating the documentation accordingly
Proofreading and updating the documentation accordingly, i.e. fixed:

  - ambiguity of foo_set_mux() implementation and explanations
  - semantics in some of the examples, e.g. _probe() --> _init()
  - references to the callbacks to make them start with dot
  - references to the legacy API by replacing them with newer one
  - indentation in some of the examples
  - double words or phrases

updated:

  - unsigned --> unsigned int in some of the examples
  - use struct pingroup and PINCTRL_PINGROUP() in some of the examples
  - use struct pinfunction and PINCTRL_PINFUNCTION() in some of the examples

and enabled:

  - syntax highlighting for the examples in the programming languages
  - chapter references

Yet to clarify:

  - "gpioN" menton for the default function when requesting GPIO

Co-developed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-01-17 17:42:29 +02:00
Arnd Bergmann
eeee697393 media: davinci: remove vpbe support
The davinci dm3xx/dm644x platforms are gone now, and the remaining
da8xx platforms do not use the vpbe driver, so the driver can be
removed as well.

Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-01-12 10:53:12 +01:00
Linus Torvalds
9322af3e6a Merge tag 'dmaengine-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
 "New support:

    - Qualcomm SDM670, SM6115 and SM6375 GPI controller support

    - Ingenic JZ4755 dmaengine support

    - Removal of iop-adma driver

  Updates:

   - Tegra support for dma-channel-mask

   - at_hdmac cleanup and virt-chan support for this driver"

* tag 'dmaengine-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (46 commits)
  dmaengine: Revert "dmaengine: remove s3c24xx driver"
  dmaengine: tegra: Add support for dma-channel-mask
  dt-bindings: dmaengine: Add dma-channel-mask to Tegra GPCDMA
  dmaengine: idxd: Remove linux/msi.h include
  dt-bindings: dmaengine: qcom: gpi: add compatible for SM6375
  dmaengine: idxd: Fix crc_val field for completion record
  dmaengine: at_hdmac: Convert driver to use virt-dma
  dmaengine: at_hdmac: Remove unused member of at_dma_chan
  dmaengine: at_hdmac: Rename "chan_common" to "dma_chan"
  dmaengine: at_hdmac: Rename "dma_common" to "dma_device"
  dmaengine: at_hdmac: Use bitfield access macros
  dmaengine: at_hdmac: Keep register definitions and structures private to at_hdmac.c
  dmaengine: at_hdmac: Set include entries in alphabetic order
  dmaengine: at_hdmac: Use pm_ptr()
  dmaengine: at_hdmac: Use devm_clk_get()
  dmaengine: at_hdmac: Use devm_platform_ioremap_resource
  dmaengine: at_hdmac: Use devm_kzalloc() and struct_size()
  dmaengine: at_hdmac: Introduce atc_get_llis_residue()
  dmaengine: at_hdmac: s/atc_get_bytes_left/atc_get_residue
  dmaengine: at_hdmac: Pass residue by address to avoid unnecessary implicit casts
  ...
2022-12-19 08:54:17 -06:00
Linus Torvalds
e79041113b Merge tag 'phy-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy updates from Vinod Koul:
 "This tme we have again a big pile of qcom-qmp-* changes, one new
  driver and bunch of new hardware support.

  New hardware support:

   - Allwinner H616 USB PHY and A100 DPHY support

   - TI J721s2, J784s4 and J721e support

   - Freescale i.MX8MP PCIe PHY support

   - New driver for Renesas Ethernet SERDES supporting R-Car S4-8

   - Qualcomm SM8450 PCIe1 PHY support in EP mode

   - Qualcomm SC8280XP PCIe PHY support (including x4 mode)

   - Fixed Qualcomm SC8280XP USB4-USB3-DP PHY DT bindings

  Updates:

   - A big pile of updates on qcom-qmp-* drivers following the driver
     split and reorganization merged earlier

   - Phy order of API calls documentation update"

* tag 'phy-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (174 commits)
  phy: ti: phy-j721e-wiz: add j721s2-wiz-10g module support
  dt-bindings: phy-j721e-wiz: add j721s2 compatible string
  phy: use devm_platform_get_and_ioremap_resource()
  phy: allwinner: phy-sun6i-mipi-dphy: Add the A100 DPHY variant
  phy: allwinner: phy-sun6i-mipi-dphy: Add a variant power-on hook
  phy: allwinner: phy-sun6i-mipi-dphy: Set the enable bit last
  phy: allwinner: phy-sun6i-mipi-dphy: Make RX support optional
  dt-bindings: sun6i-a31-mipi-dphy: Add the A100 DPHY variant
  dt-bindings: sun6i-a31-mipi-dphy: Add the interrupts property
  phy: qcom-qmp-pcie: drop redundant clock allocation
  phy: qcom-qmp-usb: drop redundant clock allocation
  phy: qcom-qmp: drop unused type header
  phy: qcom-qmp-usb: drop sc8280xp reference-clock source
  dt-bindings: phy: qcom,sc8280xp-qmp-usb3-uni: drop reference-clock source
  phy: qcom-qmp-combo: add support for updated sc8280xp binding
  phy: qcom-qmp-combo: rename DP_PHY register pointer
  phy: qcom-qmp-combo: rename common-register pointers
  phy: qcom-qmp-combo: clean up DP clock callbacks
  phy: qcom-qmp-combo: separate clock and provider registration
  phy: qcom-qmp-combo: add clock registration helper
  ...
2022-12-19 08:40:58 -06:00
Linus Torvalds
71a7507afb Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
 "Here is the set of driver core and kernfs changes for 6.2-rc1.

  The "big" change in here is the addition of a new macro,
  container_of_const() that will preserve the "const-ness" of a pointer
  passed into it.

  The "problem" of the current container_of() macro is that if you pass
  in a "const *", out of it can comes a non-const pointer unless you
  specifically ask for it. For many usages, we want to preserve the
  "const" attribute by using the same call. For a specific example, this
  series changes the kobj_to_dev() macro to use it, allowing it to be
  used no matter what the const value is. This prevents every subsystem
  from having to declare 2 different individual macros (i.e.
  kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce
  the const value at build time, which having 2 macros would not do
  either.

  The driver for all of this have been discussions with the Rust kernel
  developers as to how to properly mark driver core, and kobject,
  objects as being "non-mutable". The changes to the kobject and driver
  core in this pull request are the result of that, as there are lots of
  paths where kobjects and device pointers are not modified at all, so
  marking them as "const" allows the compiler to enforce this.

  So, a nice side affect of the Rust development effort has been already
  to clean up the driver core code to be more obvious about object
  rules.

  All of this has been bike-shedded in quite a lot of detail on lkml
  with different names and implementations resulting in the tiny version
  we have in here, much better than my original proposal. Lots of
  subsystem maintainers have acked the changes as well.

  Other than this change, included in here are smaller stuff like:

   - kernfs fixes and updates to handle lock contention better

   - vmlinux.lds.h fixes and updates

   - sysfs and debugfs documentation updates

   - device property updates

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

* tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (58 commits)
  device property: Fix documentation for fwnode_get_next_parent()
  firmware_loader: fix up to_fw_sysfs() to preserve const
  usb.h: take advantage of container_of_const()
  device.h: move kobj_to_dev() to use container_of_const()
  container_of: add container_of_const() that preserves const-ness of the pointer
  driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion.
  driver core: fix up missed scsi/cxlflash class.devnode() conversion.
  driver core: fix up some missing class.devnode() conversions.
  driver core: make struct class.devnode() take a const *
  driver core: make struct class.dev_uevent() take a const *
  cacheinfo: Remove of_node_put() for fw_token
  device property: Add a blank line in Kconfig of tests
  device property: Rename goto label to be more precise
  device property: Move PROPERTY_ENTRY_BOOL() a bit down
  device property: Get rid of __PROPERTY_ENTRY_ARRAY_EL*SIZE*()
  kernfs: fix all kernel-doc warnings and multiple typos
  driver core: pass a const * into of_device_uevent()
  kobject: kset_uevent_ops: make name() callback take a const *
  kobject: kset_uevent_ops: make filter() callback take a const *
  kobject: make kobject_namespace take a const *
  ...
2022-12-16 03:54:54 -08:00