Commit graph

4973 commits

Author SHA1 Message Date
Linus Torvalds
29aa98d0fe for-linus-2023083101
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Merge tag 'for-linus-2023083101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID updates from Benjamin Tissoires:

 - devm fixes for problems that caused use-after-free reports (Rahul
   Rameshbabu)

 - Some extensive HID docs (Marco Morandini)

 - Constification of struct class (Ivan Orlov and Greg Kroah-Hartman)

 - Google Stadia Force Feedback support (Fabio Baltieri)

 - Various fixes and new device ID support

* tag 'for-linus-2023083101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (42 commits)
  HID: logitech-hidpp: rework one more time the retries attempts
  HID: nvidia-shield: Reference hid_device devm allocation of input_dev name
  HID: multitouch: Correct devm device reference for hidinput input_dev name
  HID: uclogic: Correct devm device reference for hidinput input_dev name
  HID: logitech-dj: Fix error handling in logi_dj_recv_switch_to_dj_mode()
  HID: i2c-hid: elan: Add ili9882t timing
  dt-bindings: input: i2c-hid: Introduce Ilitek ili9882t
  HID: apple: Add "Hailuck" to the list of non-apple keyboards
  HID: steelseries: arctis_1_battery_request[] should be static
  MAINTAINERS: update my email address
  HID: logitech-hidpp: Add support for Logitech MX Anywhere 3 mouse
  HID: wacom: struct name cleanup
  HID: wacom: remove unnecessary 'connected' variable from EKR
  HID: wacom: remove the battery when the EKR is off
  HID: nvidia-shield: Update Thunderstrike LED instance name to use id
  HID: nvidia-shield: Add battery support for Thunderstrike
  HID: nvidia-shield: Remove led_classdev_unregister in thunderstrike_create
  HID: hid-google-stadiaff: add support for Stadia force feedback
  HID: logitech-dj: Add support for a new lightspeed receiver iteration
  HID: logitech-hidpp: Add support for the Pro X Superlight
  ...
2023-09-01 12:31:44 -07:00
Linus Torvalds
28a4f91f5f Driver core changes for 6.6-rc1
Here is a small set of driver core updates and additions for 6.6-rc1.
 
 Included in here are:
   - stable kernel documentation updates
   - class structure const work from Ivan on various subsystems
   - kernfs tweaks
   - driver core tests!
   - kobject sanity cleanups
   - kobject structure reordering to save space
   - driver core error code handling fixups
   - other minor driver core cleanups
 
 All of these have been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is a small set of driver core updates and additions for 6.6-rc1.

  Included in here are:

   - stable kernel documentation updates

   - class structure const work from Ivan on various subsystems

   - kernfs tweaks

   - driver core tests!

   - kobject sanity cleanups

   - kobject structure reordering to save space

   - driver core error code handling fixups

   - other minor driver core cleanups

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

* tag 'driver-core-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (32 commits)
  driver core: Call in reversed order in device_platform_notify_remove()
  driver core: Return proper error code when dev_set_name() fails
  kobject: Remove redundant checks for whether ktype is NULL
  kobject: Add sanity check for kset->kobj.ktype in kset_register()
  drivers: base: test: Add missing MODULE_* macros to root device tests
  drivers: base: test: Add missing MODULE_* macros for platform devices tests
  drivers: base: Free devm resources when unregistering a device
  drivers: base: Add basic devm tests for platform devices
  drivers: base: Add basic devm tests for root devices
  kernfs: fix missing kernfs_iattr_rwsem locking
  docs: stable-kernel-rules: mention that regressions must be prevented
  docs: stable-kernel-rules: fine-tune various details
  docs: stable-kernel-rules: make the examples for option 1 a proper list
  docs: stable-kernel-rules: move text around to improve flow
  docs: stable-kernel-rules: improve structure by changing headlines
  base/node: Remove duplicated include
  kernfs: attach uuid for every kernfs and report it in fsid
  kernfs: add stub helper for kernfs_generic_poll()
  x86/resctrl: make pseudo_lock_class a static const structure
  x86/MSR: make msr_class a static const structure
  ...
2023-09-01 09:43:18 -07:00
Benjamin Tissoires
9fe5167a6c Merge branch 'for-6.5/upstream-fixes' into for-linus
Apple devices fixes by Nimish Gåtam and Nils Tonnaett
2023-08-31 10:49:57 +02:00
Benjamin Tissoires
2544f87721 Merge branch 'for-6.6/wiimote' into for-linus
Drop error checking for debugfs_create_file in the wiimote driver
by Osama Muhammad
2023-08-31 10:47:16 +02:00
Benjamin Tissoires
d4de578ae8 Merge branch 'for-6.6/wacom' into for-linus
Battery fixes by Aaron Armstrong Skomra
2023-08-31 10:46:32 +02:00
Benjamin Tissoires
d5c04a72db Merge branch 'for-6.6/steelseries' into for-linus
Add support for the Steelseries Arctis 1 XBox headset by Bastien Nocera
2023-08-31 10:45:52 +02:00
Benjamin Tissoires
141a1289f4 Merge branch 'for-6.6/sensor-hub' into for-linus
Allow multi-function sensor devices in sensor-hub by Daniel Thompson
2023-08-31 10:45:16 +02:00
Benjamin Tissoires
b9491166c3 Merge branch 'for-6.6/roccat' into for-linus
Constify class struct by Ivan Orlov and Greg Kroah-Hartman
2023-08-31 10:43:39 +02:00
Benjamin Tissoires
18a0993498 Merge branch 'for-6.6/nvidia' into for-linus
LED fixes and Battery support for the Nvidia Shield by
Rahul Rameshbabu
2023-08-31 10:42:47 +02:00
Benjamin Tissoires
a8da334c4d Merge branch 'for-6.6/logitech' into for-linus
Various new device ID addition and a couple of HID++
fixes to tackle the last few opened bugs (Nikita Zhandarovich
and Benjamin Tissoires)
2023-08-31 10:41:52 +02:00
Benjamin Tissoires
a48e7607bc Merge branch 'for-6.6/google' into for-linus
Add support for Google Stadia force feedback by Fabio Baltieri
2023-08-31 10:40:04 +02:00
Benjamin Tissoires
1e5d726003 Merge branch 'for-6.6/elan' into for-linus
Make use of panel follower for the Ilitek ili9882t
driver by Cong Yang
2023-08-31 10:38:51 +02:00
Benjamin Tissoires
1ba893a112 Merge branch 'for-6.6/devm-fixes' into for-linus
Fix a wrong devm attachment to the input device which
now triggers a use after free with a recent devm change
by Rahul Rameshbabu.
2023-08-31 10:37:00 +02:00
Benjamin Tissoires
11438237ad Merge branch 'for-6.6/cp2112' into for-linus
Cleanup of the hid-cp2112 driver by Andy Shevchenko
2023-08-31 10:36:06 +02:00
Linus Torvalds
461f35f014 drm for 6.6-rc1
core:
 - fix gfp flags in drmm_kmalloc
 
 gpuva:
 - add new generic GPU VA manager (for nouveau initially)
 
 syncobj:
 - add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl
 
 dma-buf:
 - acquire resv lock for mmap() in exporters
 - support dma-buf self import automatically
 - docs fixes
 
 backlight:
 - fix fbdev interactions
 
 atomic:
 - improve logging
 
 prime:
 - remove struct gem_prim_mmap plus driver updates
 
 gem:
 - drm_exec: add locking over multiple GEM objects
 - fix lockdep checking
 
 fbdev:
 - make fbdev userspace interfaces optional
 - use linux device instead of fbdev device
 - use deferred i/o helper macros in various drivers
 - Make FB core selectable without drivers
 - Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT
 - Add helper macros and Kconfig tokens for DMA-allocated framebuffer
 
 ttm:
 - support init_on_free
 - swapout fixes
 
 panel:
 - panel-edp: Support AUO B116XAB01.4
 - Support Visionox R66451 plus DT bindings
 - ld9040: Backlight support, magic improved,
           Kconfig fix
 - Convert to of_device_get_match_data()
 - Fix Kconfig dependencies
 - simple: Set bpc value to fix warning; Set connector type for AUO T215HVN01;
   Support Innolux G156HCE-L01 plus DT bindings
 - ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings
 - startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings
 - sitronix-st7789v: Support Inanbo T28CP45TN89 plus DT bindings;
          Support EDT ET028013DMA plus DT bindings; Various cleanups
 - edp: Add timings for N140HCA-EAC
 - Allow panels and touchscreens to power sequence together
 - Fix Innolux G156HCE-L01 LVDS clock
 
 bridge:
 - debugfs for chains support
 - dw-hdmi: Improve support for YUV420 bus format
            CEC suspend/resume, update EDID on HDMI detect
 - dw-mipi-dsi: Fix enable/disable of DSI controller
 - lt9611uxc: Use MODULE_FIRMWARE()
 - ps8640: Remove broken EDID code
 - samsung-dsim: Fix command transfer
 - tc358764: Handle HS/VS polarity; Use BIT() macro; Various cleanups
 - adv7511: Fix low refresh rate
 - anx7625: Switch to macros instead of hardcoded values
            locking fixes
 - tc358767: fix hardware delays
 - sitronix-st7789v: Support panel orientation; Support rotation
                     property; Add support for Jasonic
                     JT240MHQS-HWT-EK-E3 plus DT bindings
 
 amdgpu:
 - SDMA 6.1.0 support
 - HDP 6.1 support
 - SMUIO 14.0 support
 - PSP 14.0 support
 - IH 6.1 support
 - Lots of checkpatch cleanups
 - GFX 9.4.3 updates
 - Add USB PD and IFWI flashing documentation
 - GPUVM updates
 - RAS fixes
 - DRR fixes
 - FAMS fixes
 - Virtual display fixes
 - Soft IH fixes
 - SMU13 fixes
 - Rework PSP firmware loading for other IPs
 - Kernel doc fixes
 - DCN 3.0.1 fixes
 - LTTPR fixes
 - DP MST fixes
 - DCN 3.1.6 fixes
 - SMU 13.x fixes
 - PSP 13.x fixes
 - SubVP fixes
 - GC 9.4.3 fixes
 - Display bandwidth calculation fixes
 - VCN4 secure submission fixes
 - Allow building DC on RISC-V
 - Add visible FB info to bo_print_info
 - HBR3 fixes
 - GFX9 MCBP fix
 - GMC10 vmhub index fix
 - GMC11 vmhub index fix
 - Create a new doorbell manager
 - SR-IOV fixes
 - initial freesync panel replay support
 - revert zpos properly until igt regression is fixeed
 - use TTM to manage doorbell BAR
 - Expose both current and average power via hwmon if supported
 
 amdkfd:
 - Cleanup CRIU dma-buf handling
 - Use KIQ to unmap HIQ
 - GFX 9.4.3 debugger updates
 - GFX 9.4.2 debugger fixes
 - Enable cooperative groups fof gfx11
 - SVM fixes
 - Convert older APUs to use dGPU path like newer APUs
 - Drop IOMMUv2 path as it is no longer used
 - TBA fix for aldebaran
 
 i915:
 - ICL+ DSI modeset sequence
 - HDCP improvements
 - MTL display fixes and cleanups
 - HSW/BDW PSR1 restored
 - Init DDI ports in VBT order
 - General display refactors
 - Start using plane scale factor for relative data rate
 - Use shmem for dpt objects
 - Expose RPS thresholds in sysfs
 - Apply GuC SLPC min frequency softlimit correctly
 - Extend Wa_14015795083 to TGL, RKL, DG1 and ADL
 - Fix a VMA UAF for multi-gt platform
 - Do not use stolen on MTL due to HW bug
 - Check HuC and GuC version compatibility on MTL
 - avoid infinite GPU waits due to premature release
   of request memory
 - Fixes and updates for GSC memory allocation
 - Display SDVO fixes
 - Take stolen handling out of FBC code
 - Make i915_coherent_map_type GT-centric
 - Simplify shmem_create_from_object map_type
 
 msm:
 - SM6125 MDSS support
 - DPU: SM6125 DPU support
 - DSI: runtime PM support, burst mode support
 - DSI PHY: SM6125 support in 14nm DSI PHY driver
 - GPU: prepare for a7xx
 - fix a690 firmware
 - disable relocs on a6xx and newer
 
 radeon:
 - Lots of checkpatch cleanups
 
 ast:
 - improve device-model detection
 - Represent BMV as virtual connector
 - Report DP connection status
 
 nouveau:
 - add new exec/bind interface to support Vulkan
 - document some getparam ioctls
 - improve VRAM detection
 - various fixes/cleanups
 - workraound DPCD issues
 
 ivpu:
 - MMU updates
 - debugfs support
 - Support vpu4
 
 virtio:
 - add sync object support
 
 atmel-hlcdc:
 - Support inverted pixclock polarity
 
 etnaviv:
 - runtime PM cleanups
 - hang handling fixes
 
 exynos:
 - use fbdev DMA helpers
 - fix possible NULL ptr dereference
 
 komeda:
 - always attach encoder
 
 omapdrm:
 - use fbdev DMA helpers
 ingenic:
 - kconfig regmap fixes
 
 loongson:
 - support display controller
 
 mediatek:
 - Small mtk-dpi cleanups
 - DisplayPort: support eDP and aux-bus
 - Fix coverity issues
 - Fix potential memory leak if vmap() fail
 
 mgag200:
 - minor fixes
 
 mxsfb:
 - support disabling overlay planes
 
 panfrost:
 - fix sync in IRQ handling
 
 ssd130x:
 - Support per-controller default resolution plus DT bindings
 - Reduce memory-allocation overhead
 - Improve intermediate buffer size computation
 - Fix allocation of temporary buffers
 - Fix pitch computation
 - Fix shadow plane allocation
 
 tegra:
 - use fbdev DMA helpers
 - Convert to devm_platform_ioremap_resource()
 - support bridge/connector
 - enable PM
 
 tidss:
 - Support TI AM625 plus DT bindings
 - Implement new connector model plus driver updates
 
 vkms:
 - improve write back support
 - docs fixes
 - support gamma LUT
 
 zynqmp-dpsub:
 - misc fixes
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Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "The drm core grew a new generic gpu virtual address manager, and new
  execution locking helpers. These are used by nouveau now to provide
  uAPI support for the userspace Vulkan driver. AMD had a bunch of new
  IP core support, loads of refactoring around fbdev, but mostly just
  the usual amount of stuff across the board.

  core:
   - fix gfp flags in drmm_kmalloc

  gpuva:
   - add new generic GPU VA manager (for nouveau initially)

  syncobj:
   - add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl

  dma-buf:
   - acquire resv lock for mmap() in exporters
   - support dma-buf self import automatically
   - docs fixes

  backlight:
   - fix fbdev interactions

  atomic:
   - improve logging

  prime:
   - remove struct gem_prim_mmap plus driver updates

  gem:
   - drm_exec: add locking over multiple GEM objects
   - fix lockdep checking

  fbdev:
   - make fbdev userspace interfaces optional
   - use linux device instead of fbdev device
   - use deferred i/o helper macros in various drivers
   - Make FB core selectable without drivers
   - Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT
   - Add helper macros and Kconfig tokens for DMA-allocated framebuffer

  ttm:
   - support init_on_free
   - swapout fixes

  panel:
   - panel-edp: Support AUO B116XAB01.4
   - Support Visionox R66451 plus DT bindings
   - ld9040:
      - Backlight support
      - magic improved
      - Kconfig fix
   - Convert to of_device_get_match_data()
   - Fix Kconfig dependencies
   - simple:
      - Set bpc value to fix warning
      - Set connector type for AUO T215HVN01
      - Support Innolux G156HCE-L01 plus DT bindings
   - ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings
   - startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings
   - sitronix-st7789v:
      - Support Inanbo T28CP45TN89 plus DT bindings
      - Support EDT ET028013DMA plus DT bindings
      - Various cleanups
   - edp: Add timings for N140HCA-EAC
   - Allow panels and touchscreens to power sequence together
   - Fix Innolux G156HCE-L01 LVDS clock

  bridge:
   - debugfs for chains support
   - dw-hdmi:
      - Improve support for YUV420 bus format
      - CEC suspend/resume
      - update EDID on HDMI detect
   - dw-mipi-dsi: Fix enable/disable of DSI controller
   - lt9611uxc: Use MODULE_FIRMWARE()
   - ps8640: Remove broken EDID code
   - samsung-dsim: Fix command transfer
   - tc358764:
      - Handle HS/VS polarity
      - Use BIT() macro
      - Various cleanups
   - adv7511: Fix low refresh rate
   - anx7625:
      - Switch to macros instead of hardcoded values
      - locking fixes
   - tc358767: fix hardware delays
   - sitronix-st7789v:
      - Support panel orientation
      - Support rotation property
      - Add support for Jasonic JT240MHQS-HWT-EK-E3 plus DT bindings

  amdgpu:
   - SDMA 6.1.0 support
   - HDP 6.1 support
   - SMUIO 14.0 support
   - PSP 14.0 support
   - IH 6.1 support
   - Lots of checkpatch cleanups
   - GFX 9.4.3 updates
   - Add USB PD and IFWI flashing documentation
   - GPUVM updates
   - RAS fixes
   - DRR fixes
   - FAMS fixes
   - Virtual display fixes
   - Soft IH fixes
   - SMU13 fixes
   - Rework PSP firmware loading for other IPs
   - Kernel doc fixes
   - DCN 3.0.1 fixes
   - LTTPR fixes
   - DP MST fixes
   - DCN 3.1.6 fixes
   - SMU 13.x fixes
   - PSP 13.x fixes
   - SubVP fixes
   - GC 9.4.3 fixes
   - Display bandwidth calculation fixes
   - VCN4 secure submission fixes
   - Allow building DC on RISC-V
   - Add visible FB info to bo_print_info
   - HBR3 fixes
   - GFX9 MCBP fix
   - GMC10 vmhub index fix
   - GMC11 vmhub index fix
   - Create a new doorbell manager
   - SR-IOV fixes
   - initial freesync panel replay support
   - revert zpos properly until igt regression is fixeed
   - use TTM to manage doorbell BAR
   - Expose both current and average power via hwmon if supported

  amdkfd:
   - Cleanup CRIU dma-buf handling
   - Use KIQ to unmap HIQ
   - GFX 9.4.3 debugger updates
   - GFX 9.4.2 debugger fixes
   - Enable cooperative groups fof gfx11
   - SVM fixes
   - Convert older APUs to use dGPU path like newer APUs
   - Drop IOMMUv2 path as it is no longer used
   - TBA fix for aldebaran

  i915:
   - ICL+ DSI modeset sequence
   - HDCP improvements
   - MTL display fixes and cleanups
   - HSW/BDW PSR1 restored
   - Init DDI ports in VBT order
   - General display refactors
   - Start using plane scale factor for relative data rate
   - Use shmem for dpt objects
   - Expose RPS thresholds in sysfs
   - Apply GuC SLPC min frequency softlimit correctly
   - Extend Wa_14015795083 to TGL, RKL, DG1 and ADL
   - Fix a VMA UAF for multi-gt platform
   - Do not use stolen on MTL due to HW bug
   - Check HuC and GuC version compatibility on MTL
   - avoid infinite GPU waits due to premature release of request memory
   - Fixes and updates for GSC memory allocation
   - Display SDVO fixes
   - Take stolen handling out of FBC code
   - Make i915_coherent_map_type GT-centric
   - Simplify shmem_create_from_object map_type

  msm:
   - SM6125 MDSS support
   - DPU: SM6125 DPU support
   - DSI: runtime PM support, burst mode support
   - DSI PHY: SM6125 support in 14nm DSI PHY driver
   - GPU: prepare for a7xx
   - fix a690 firmware
   - disable relocs on a6xx and newer

  radeon:
   - Lots of checkpatch cleanups

  ast:
   - improve device-model detection
   - Represent BMV as virtual connector
   - Report DP connection status

  nouveau:
   - add new exec/bind interface to support Vulkan
   - document some getparam ioctls
   - improve VRAM detection
   - various fixes/cleanups
   - workraound DPCD issues

  ivpu:
   - MMU updates
   - debugfs support
   - Support vpu4

  virtio:
   - add sync object support

  atmel-hlcdc:
   - Support inverted pixclock polarity

  etnaviv:
   - runtime PM cleanups
   - hang handling fixes

  exynos:
   - use fbdev DMA helpers
   - fix possible NULL ptr dereference

  komeda:
   - always attach encoder

  omapdrm:
   - use fbdev DMA helpers
ingenic:
   - kconfig regmap fixes

  loongson:
   - support display controller

  mediatek:
   - Small mtk-dpi cleanups
   - DisplayPort: support eDP and aux-bus
   - Fix coverity issues
   - Fix potential memory leak if vmap() fail

  mgag200:
   - minor fixes

  mxsfb:
   - support disabling overlay planes

  panfrost:
   - fix sync in IRQ handling

  ssd130x:
   - Support per-controller default resolution plus DT bindings
   - Reduce memory-allocation overhead
   - Improve intermediate buffer size computation
   - Fix allocation of temporary buffers
   - Fix pitch computation
   - Fix shadow plane allocation

  tegra:
   - use fbdev DMA helpers
   - Convert to devm_platform_ioremap_resource()
   - support bridge/connector
   - enable PM

  tidss:
   - Support TI AM625 plus DT bindings
   - Implement new connector model plus driver updates

  vkms:
   - improve write back support
   - docs fixes
   - support gamma LUT

  zynqmp-dpsub:
   - misc fixes"

* tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm: (1327 commits)
  drm/gpuva_mgr: remove unused prev pointer in __drm_gpuva_sm_map()
  drm/tests/drm_kunit_helpers: Place correct function name in the comment header
  drm/nouveau: uapi: don't pass NO_PREFETCH flag implicitly
  drm/nouveau: uvmm: fix unset region pointer on remap
  drm/nouveau: sched: avoid job races between entities
  drm/i915: Fix HPD polling, reenabling the output poll work as needed
  drm: Add an HPD poll helper to reschedule the poll work
  drm/i915: Fix TLB-Invalidation seqno store
  drm/ttm/tests: Fix type conversion in ttm_pool_test
  drm/msm/a6xx: Bail out early if setting GPU OOB fails
  drm/msm/a6xx: Move LLC accessors to the common header
  drm/msm/a6xx: Introduce a6xx_llc_read
  drm/ttm/tests: Require MMU when testing
  drm/panel: simple: Fix Innolux G156HCE-L01 LVDS clock
  Revert "Revert "drm/amdgpu/display: change pipe policy for DCN 2.0""
  drm/amdgpu: Add memory vendor information
  drm/amd: flush any delayed gfxoff on suspend entry
  drm/amdgpu: skip fence GFX interrupts disable/enable for S0ix
  drm/amdgpu: Remove gfxoff check in GFX v9.4.3
  drm/amd/pm: Update pci link speed for smu v13.0.6
  ...
2023-08-30 13:34:34 -07:00
Benjamin Tissoires
60165ab774 HID: logitech-hidpp: rework one more time the retries attempts
Extract the internal code inside a helper function, fix the
initialization of the parameters used in the helper function
(`hidpp->answer_available` was not reset and `*response` wasn't either),
and use a `do {...} while();` loop.

Fixes: 586e8fede7 ("HID: logitech-hidpp: Retry commands when device is busy")
Cc: stable@vger.kernel.org
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230621-logitech-fixes-v2-1-3635f7f9c8af@kernel.org
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2023-08-25 10:40:32 +02:00
Rahul Rameshbabu
197d314352 HID: nvidia-shield: Reference hid_device devm allocation of input_dev name
Use hid_device for devm allocation of the input_dev name to avoid a
use-after-free. input_unregister_device would trigger devres cleanup of all
resources associated with the input_dev, free-ing the name. The name would
subsequently be used in a uevent fired at the end of unregistering the
input_dev.

Reported-by: Maxime Ripard <mripard@kernel.org>
Closes: https://lore.kernel.org/linux-input/ZOZIZCND+L0P1wJc@penguin/T/#m443f3dce92520f74b6cf6ffa8653f9c92643d4ae
Fixes: 09308562d4 ("HID: nvidia-shield: Initial driver implementation with Thunderstrike support")
Suggested-by: Maxime Ripard <mripard@kernel.org>
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230824061308.222021-4-sergeantsagara@protonmail.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2023-08-24 15:57:58 +02:00
Rahul Rameshbabu
4794394635 HID: multitouch: Correct devm device reference for hidinput input_dev name
Reference the HID device rather than the input device for the devm
allocation of the input_dev name. Referencing the input_dev would lead to a
use-after-free when the input_dev was unregistered and subsequently fires a
uevent that depends on the name. At the point of firing the uevent, the
name would be freed by devres management.

Use devm_kasprintf to simplify the logic for allocating memory and
formatting the input_dev name string.

Reported-by: Maxime Ripard <mripard@kernel.org>
Closes: https://lore.kernel.org/linux-input/ZOZIZCND+L0P1wJc@penguin/T/#m443f3dce92520f74b6cf6ffa8653f9c92643d4ae
Fixes: c08d46aa80 ("HID: multitouch: devm conversion")
Suggested-by: Maxime Ripard <mripard@kernel.org>
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rahul Rameshbabu <sergeantsagara@protonmail.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230824061308.222021-3-sergeantsagara@protonmail.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2023-08-24 15:57:57 +02:00
Rahul Rameshbabu
dd613a4e45 HID: uclogic: Correct devm device reference for hidinput input_dev name
Reference the HID device rather than the input device for the devm
allocation of the input_dev name. Referencing the input_dev would lead to a
use-after-free when the input_dev was unregistered and subsequently fires a
uevent that depends on the name. At the point of firing the uevent, the
name would be freed by devres management.

Use devm_kasprintf to simplify the logic for allocating memory and
formatting the input_dev name string.

Reported-by: syzbot+3a0ebe8a52b89c63739d@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-input/ZOZIZCND+L0P1wJc@penguin/T/
Reported-by: Maxime Ripard <mripard@kernel.org>
Closes: https://lore.kernel.org/linux-input/ZOZIZCND+L0P1wJc@penguin/T/#m443f3dce92520f74b6cf6ffa8653f9c92643d4ae
Fixes: cce2dbdf25 ("HID: uclogic: name the input nodes based on their tool")
Suggested-by: Maxime Ripard <mripard@kernel.org>
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rahul Rameshbabu <sergeantsagara@protonmail.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230824061308.222021-2-sergeantsagara@protonmail.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2023-08-24 15:57:57 +02:00
Nikita Zhandarovich
6f20d32612 HID: logitech-dj: Fix error handling in logi_dj_recv_switch_to_dj_mode()
Presently, if a call to logi_dj_recv_send_report() fails, we do
not learn about the error until after sending short
HID_OUTPUT_REPORT with hid_hw_raw_request().
To handle this somewhat unlikely issue, return on error in
logi_dj_recv_send_report() (minding ugly sleep workaround) and
take into account the result of hid_hw_raw_request().

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

Fixes: 6a9ddc8978 ("HID: logitech-dj: enable notifications on connect/disconnect")
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Link: https://lore.kernel.org/r/20230613101635.77820-1-n.zhandarovich@fintech.ru
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2023-08-22 17:35:05 +02:00
Cong Yang
f2f43bf15d HID: i2c-hid: elan: Add ili9882t timing
The ili9882t is a TDDI IC (Touch with Display Driver). The
datasheet specifies there should be 60ms between touch SDA
sleep and panel RESX. Doug's series[1] allows panels and
touchscreens to power on/off together, so we can add the 65 ms
delay in i2c_hid_core_suspend before panel_unprepare.

Because ili9882t touchscrgeen is a panel follower, and
needs to use vccio-supply instead of vcc33-supply, so set
it NULL to ili9882t_chip_data, then not use vcc33 regulator.

[1]: https://lore.kernel.org/all/20230727171750.633410-1-dianders@chromium.org

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20230802071947.1683318-3-yangcong5@huaqin.corp-partner.google.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2023-08-21 17:21:43 +02:00
Nils Tonnaett
c4444d8749 HID: apple: Add "Hailuck" to the list of non-apple keyboards
Powzan keyboards KB750 and KB770 identify as
"Hailuck Co.,Ltd USB Keyboard". Adding "Hailuck" to the list
of non-apple keyboards fixes function keys for these models.

Signed-off-by: Nils Tonnaett <ntonnatt@ccrma.stanford.edu>
Reviewed-by: Rahul Rameshbabu <sergeantsagara@protonmail.com
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-16 15:20:59 +02:00
Jiri Kosina
e90e7c2894 HID: steelseries: arctis_1_battery_request[] should be static
arctis_1_battery_request[] is not used outside of this module, and as
such should be static.

Fixes: a0c76896c3 ("HID: steelseries: Add support for Arctis 1 XBox")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 21:19:28 +02:00
Maxim Mikityanskiy
ed1fb63b6e HID: logitech-hidpp: Add support for Logitech MX Anywhere 3 mouse
Add Logitech MX Anywhere 3 connected over Bluetooth to the device table
to get hidpi scroll supported. USB connection over the Unifying receiver
is already supported by the wildcard entry LDJ_DEVICE(HID_ANY_ID).

Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:46:31 +02:00
Aaron Armstrong Skomra
55ab9b2c42 HID: wacom: struct name cleanup
Help differentiate the two remote related "serial" struct variables by
renaming "wacom_remote_data" to "wacom_remote_work_data".

Signed-off-by: Aaron Skomra <skomra@gmail.com>
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:43:57 +02:00
Aaron Armstrong Skomra
2834e38048 HID: wacom: remove unnecessary 'connected' variable from EKR
The 'connected' variable was poorly named, and this has led to some
confusion. We can get the same information by checking if a serial number
exists in the specified EKR slot.

Signed-off-by: Aaron Skomra <skomra@gmail.com>
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:43:57 +02:00
Aaron Armstrong Skomra
9ac6678b95 HID: wacom: remove the battery when the EKR is off
Currently the EKR battery remains even after we stop getting information
from the device. This can lead to a stale battery persisting indefinitely
in userspace.

The remote sends a heartbeat every 10 seconds. Delete the battery if we
miss two heartbeats (after 21 seconds). Restore the battery once we see
a heartbeat again.

Signed-off-by: Aaron Skomra <skomra@gmail.com>
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Fixes: 9f1015d45f ("HID: wacom: EKR: attach the power_supply on first connection")
CC: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:43:57 +02:00
Rahul Rameshbabu
77fe1fed47 HID: nvidia-shield: Update Thunderstrike LED instance name to use id
Previously would let led_classdev handle renaming when name collision
occurred. Now that an ID allocator is used to uniquely identify multiple
Thunderstrike controllers, generate unique led device names.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:41:17 +02:00
Rahul Rameshbabu
3ab196f882 HID: nvidia-shield: Add battery support for Thunderstrike
Use power supply API to expose battery information about connected
Thunderstrike controllers to the system. Provide information on battery
capacity, charge status, charger type, voltage, and temperature.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:41:17 +02:00
Rahul Rameshbabu
cb818a047f HID: nvidia-shield: Remove led_classdev_unregister in thunderstrike_create
Avoid calling thunderstrike_led_set_brightness from thunderstrike_create
when led_classdev_unregister is called. led_classdev_unregister was called
from thunderstrike_create in the error path. Calling
thunderstrike_led_set_brightness in this situation is unsafe.

Fixes: f88af60e74 ("HID: nvidia-shield: Support LED functionality for Thunderstrike")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:41:17 +02:00
Fabio Baltieri
24175157b8 HID: hid-google-stadiaff: add support for Stadia force feedback
Add a hid-google-stadiaff module to support rumble based force feedback
on the Google Stadia controller. This works using the HID output
endpoint exposed on both the USB and BLE interface.

Signed-off-by: Fabio Baltieri <fabiobaltieri@chromium.org>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:35:37 +02:00
Mavroudis Chatzilazaridis
9d1bd93462 HID: logitech-dj: Add support for a new lightspeed receiver iteration
The lightspeed receiver for the Pro X Superlight uses 13 byte mouse reports
without a report id. The workaround for such cases has been adjusted to
handle these larger packets.

The device now reports the status of its battery in wireless mode and
libratbag now recognizes the device and it can be configured with Piper.

https://github.com/libratbag/libratbag/pull/1122

Co-developed-by: Filipe Laíns <lains@riseup.net>
Signed-off-by: Filipe Laíns <lains@riseup.net>
Signed-off-by: Mavroudis Chatzilazaridis <mavchatz@protonmail.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:34:03 +02:00
Mavroudis Chatzilazaridis
c05b8a939a HID: logitech-hidpp: Add support for the Pro X Superlight
This patch adds support for the Pro X Superlight over wired USB.
The device now reports the status of its battery.

Co-developed-by: Filipe Laíns <lains@riseup.net>
Signed-off-by: Filipe Laíns <lains@riseup.net>
Signed-off-by: Mavroudis Chatzilazaridis <mavchatz@protonmail.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:34:03 +02:00
Bastien Nocera
a0c76896c3 HID: steelseries: Add support for Arctis 1 XBox
Add support for the Steelseries Arctis 1 XBox headset. This driver
will export the battery information from the headset, as well as the
"wireless_status" property.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:27:29 +02:00
Nimish Gåtam
9c34660ee6 HID: input: Fix Apple Magic Trackpad 1 Bluetooth disconnect
When connecting the Trackpad 1 via any bluetooth adapter, the device
disconnects whenever the battery level is queried. It reconnects
again after a few seconds, but it's an incredibly jarring experience
since it will just cut out in the middle of mouse operations.

This patch ignores querying the battery and avoids disconnects.

This bug is reported here:

- https://bugzilla.kernel.org/show_bug.cgi?id=204589
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834085

It looks like a similar approach (disabling battery checking)
was also suggested for the Apple Magic Mouse before a custom
driver was created:

https://bugzilla.kernel.org/show_bug.cgi?id=103631
Signed-off-by: Nimish Gåtam <nimishg@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:24:46 +02:00
Greg Kroah-Hartman
21168bdba6 HID: hidraw: make hidraw_class structure const
Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.

Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: Ivan Orlov <ivan.orlov0322@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:23:35 +02:00
Ivan Orlov
fadfcf3601 HID: roccat: make all 'class' structures const
Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.

Cc: Stefan Achatz <erazor_de@users.sourceforge.net>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:23:35 +02:00
Bastien Nocera
a7156d8181 HID: logitech-hidpp: Rename HID++ "internal" error constant
As per the upstream "hidpp" helpers commit:
"
There has been some confusion about error value 5 but feature specs that
refer to it generally use NOT_ALLOWED.
"

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: 80c3fecfcd
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:22:26 +02:00
Illia Ostapyshyn
276e14e6c3 HID: input: Support devices sending Eraser without Invert
Some digitizers (notably XP-Pen Artist 24) do not report the Invert
usage when erasing.  This causes the device to be permanently stuck with
the BTN_TOOL_RUBBER tool after sending Eraser, as Invert is the only
usage that can release the tool.  In this state, Touch and Inrange are
no longer reported to userspace, rendering the pen unusable.

Prior to commit 87562fcd13 ("HID: input: remove the need for
HID_QUIRK_INVERT"), BTN_TOOL_RUBBER was never set and Eraser events were
simply translated into BTN_TOUCH without causing an inconsistent state.

Introduce HID_QUIRK_NOINVERT for such digitizers and detect them during
hidinput_configure_usage().  This quirk causes the tool to be released
as soon as Eraser is reported as not set.  Set BTN_TOOL_RUBBER in
input->keybit when mapping Eraser.

Fixes: 87562fcd13 ("HID: input: remove the need for HID_QUIRK_INVERT")
Co-developed-by: Nils Fuhler <nils@nilsfuhler.de>
Signed-off-by: Nils Fuhler <nils@nilsfuhler.de>
Signed-off-by: Illia Ostapyshyn <ostapyshyn@sra.uni-hannover.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:19:10 +02:00
Osama Muhammad
9620a78fd1 HID: hid-wiimote-debug.c: Drop error checking for debugfs_create_file
This patch removes the error checking for debugfs_create_file
in hid-wiimote-debug.c.c. This is because the debugfs_create_file()
does not return NULL but an ERR_PTR after an error.
The DebugFS kernel API is developed in a way that the
caller can safely ignore the errors that occur during
the creation of DebugFS nodes.The debugfs Api handles
it gracefully. The check is unnecessary.

Link to the comment above debugfs_create_file:
https://elixir.bootlin.com/linux/latest/source/fs/debugfs/inode.c#L451

Signed-off-by: Osama Muhammad <osmtendev@gmail.com>
Reviewed-by: David Rheinsberg <david@readahead.eu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:14:42 +02:00
Daniel Thompson
666cf30a58 HID: sensor-hub: Allow multi-function sensor devices
The Lenovo Yoga C630 has a combined keyboard and accelerometer that
interfaces via i2c-hid. Currently this laptop either has a working
keyboard (if CONFIG_HID_SENSOR_HUB is disabled) or a working accelerometer.
only works on kernels. Put another way, most distro kernels enable
CONFIG_HID_SENSOR_HUB and therefore cannot work on this device since the
keyboard doesn't work!

Fix this by providing a richer connect mask during the probe. With this
change both keyboard and screen orientation sensors work correctly.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Srinivas Pandruvada<srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2023-08-14 11:12:56 +02:00
Greg Kroah-Hartman
32944855ba HID: hidraw: make hidraw_class structure const
Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.

Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230620183141.681353-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-05 08:31:41 +02:00
Ivan Orlov
afdf5dd33a HID: roccat: make all 'class' structures const
Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.

Cc: Stefan Achatz <erazor_de@users.sourceforge.net>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230620183141.681353-3-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-05 08:31:41 +02:00
Arnd Bergmann
a0769f25a3 HID: i2c-hid: add more DRM dependencies
When a symbol is selected that has extra dependencies,
anything that selects it must have the same dependencies.
With the added CONFIG_DRM reference from I2C_HID_CORE,
this broke a couple of drivers that now also depend
on DRM:

WARNING: unmet direct dependencies detected for I2C_HID_CORE
  Depends on [m]: HID_SUPPORT [=y] && I2C_HID [=y] && (DRM [=m] || !DRM [=m])
  Selected by [y]:
  - I2C_HID_OF [=y] && HID_SUPPORT [=y] && I2C_HID [=y]
  - I2C_HID_ACPI [=y] && HID_SUPPORT [=y] && I2C_HID [=y] && ACPI [=y]
  - I2C_HID_OF_GOODIX [=y] && HID_SUPPORT [=y] && I2C_HID [=y] && OF [=y]
x86_64-linux-ld: vmlinux.o: in function `i2c_hid_core_remove':
(.text+0xfc8826): undefined reference to `drm_panel_remove_follower'
x86_64-linux-ld: vmlinux.o: in function `i2c_hid_core_probe':
(.text+0xfc8da0): undefined reference to `drm_is_panel_follower'

Add the corresponding DRM||!DRM dependencies on each one that
is affected.

Fixes: 96a37bfd23 ("HID: i2c-hid: Support being a panel follower")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230802124947.1355415-1-arnd@kernel.org
2023-08-03 07:36:41 -07:00
Douglas Anderson
76edfcf430 HID: i2c-hid: Do panel follower work on the system_wq
Turning on an i2c-hid device can be a slow process. This is why
i2c-hid devices use PROBE_PREFER_ASYNCHRONOUS. Unfortunately, when
we're a panel follower the i2c-hid power up sequence now blocks the
power on of the panel. Let's fix that by scheduling the work on the
system_wq.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230727101636.v4.10.I962bb462ede779005341c49320740ed95810021d@changeid
2023-08-01 07:42:00 -07:00
Douglas Anderson
96a37bfd23 HID: i2c-hid: Support being a panel follower
As talked about in the patch ("drm/panel: Add a way for other devices
to follow panel state"), we really want to keep the power states of a
touchscreen and the panel it's attached to in sync with each other. In
that spirit, add support to i2c-hid to be a panel follower. This will
let the i2c-hid driver get informed when the panel is powered on and
off. From there we can match the i2c-hid device's power state to that
of the panel.

NOTE: this patch specifically _doesn't_ use pm_runtime to keep track
of / manage the power state of the i2c-hid device, even though my
first instinct said that would be the way to go. Specific problems
with using pm_runtime():
* The initial power up couldn't happen in a runtime resume function
  since it create sub-devices and, apparently, that's not good to do
  in your resume function.
* Managing our power state with pm_runtime meant fighting to make the
  right thing happen at system suspend to prevent the system from
  trying to resume us only to suspend us again. While this might be
  able to be solved, it added complexity.
Overall the code without pm_runtime() ended up being smaller and
easier to understand.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230727101636.v4.9.Ib1a98309c455cd7e26b931c69993d4fba33bbe15@changeid
2023-08-01 07:41:26 -07:00
Douglas Anderson
5f8838e940 HID: i2c-hid: Suspend i2c-hid devices in remove
In the i2c-hid remove() function we currently try to power off,
depopulate our child device, and free our resources. That's OK, but...

* If the i2c-hid device is on a power rail that can't turn off (either
  an always-on or a shared power rail) we won't try to put the device
  in a low power state during remove(). This probably doesn't matter
  for very many devices but it could be nice in some instances.

* If the i2c-hid device somehow manages to generate an interrupt after
  we tried to power off it is conceivable that the interrupt could
  arrive during or after the call to hid_destroy_device() but before
  the call to free_irq(). That could cause a crash since our IRQ
  handler isn't expecting it. One could imagine this happening in
  the case where we couldn't turn off (see the previous bullet) or,
  possibly, if the interrupt line could glitch shortly after the
  device powered off.

Let's call the suspend code during remove to avoid these issues. That
will put the device into a low power state and also disable
interrupts.

Technically, one could consider this a "fix" of commit 4a200c3b9a
("HID: i2c-hid: introduce HID over i2c specification implementation").
However, since the above bullet points are more theoretical than
problems seen on real systems and since the remove() of an i2c-hid
touchscreen isn't terribly likely to be called in production, it's
probably not worth the bother of trying to backport it.

Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230727101636.v4.8.Ic3ecad4a825905f4e4ce2a772b17f3c9cb2d60a2@changeid
2023-08-01 07:40:56 -07:00
Douglas Anderson
d93d284772 HID: i2c-hid: Make suspend and resume into helper functions
In a future patch we'd like to be able to call the current i2c-hid
suspend and resume functions from times other than system
suspend. Move the functions higher up in the file and have them take a
"struct i2c_hid" to make this simpler. We'll then add tiny wrappers of
the functions for use with system suspend.

This change is expected to have no functional effect.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230727101636.v4.7.I5c9894789b8b02f029bf266ae9b4f43c7907a173@changeid
2023-08-01 07:40:19 -07:00
Douglas Anderson
675cd877c9 HID: i2c-hid: Rearrange probe() to power things up later
In a future patch, we want to change i2c-hid not to necessarily power
up the touchscreen during probe. In preparation for that, rearrange
the probe function so that we put as much stuff _before_ powering up
the device as possible.

This change is expected to have no functional effect.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230727101636.v4.6.Ifcc9b0a44895d164788966f9b9511fe094ca8cf9@changeid
2023-08-01 07:39:44 -07:00
Douglas Anderson
a889ee12d5 HID: i2c-hid: Switch to SYSTEM_SLEEP_PM_OPS()
The SYSTEM_SLEEP_PM_OPS() allows us to get rid of '#ifdef
CONFIG_PM_SLEEP', as talked about in commit 1a3c7bb088 ("PM: core:
Add new *_PM_OPS macros, deprecate old ones").

This change is expected to have no functional effect.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230727101636.v4.5.Ib2a2865bd3c0b068432259dfc7d76cebcbb512be@changeid
2023-08-01 07:39:08 -07:00