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2022-11-18Merge tag 'tty-6.1-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver fixes from Greg KH: "Here are a number of small tty and serial driver fixes for 6.1-rc6. They all resolve reported problems: - kernel doc build problems with the -rc1 serial driver documentation update - n_gsm reported problems - imx serial driver missing callback - lots of tiny 8250 driver fixes for reported issues. All of these have been in linux-next for over a week with no reported problems" * tag 'tty-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: docs/driver-api/miscellaneous: Remove kernel-doc of serial_core.c serial: 8250: Flush DMA Rx on RLSI serial: 8250_lpss: Use 16B DMA burst with Elkhart Lake serial: 8250_lpss: Configure DMA also w/o DMA filter serial: 8250: Fall back to non-DMA Rx if IIR_RDI occurs tty: n_gsm: fix sleep-in-atomic-context bug in gsm_control_send Revert "tty: n_gsm: replace kicktimer with delayed_work" Revert "tty: n_gsm: avoid call of sleeping functions from atomic context" serial: imx: Add missing .thaw_noirq hook tty: serial: fsl_lpuart: don't break the on-going transfer when global reset serial: 8250: omap: Flush PM QOS work on remove serial: 8250: omap: Fix unpaired pm_runtime_put_sync() in omap8250_remove() serial: 8250_omap: remove wait loop from Errata i202 workaround serial: 8250: omap: Fix missing PM runtime calls for omap8250_set_mctrl() serial: 8250: 8250_omap: Avoid RS485 RTS glitch on ->set_termios()
2022-11-15Documentation: devres: add missing LED helpersYang Yingliang
Add some missing device-managed helpers of led to devres.rst. devm_led_classdev_register_ext() is introduced by commit b2b998c0f944 ("leds: class: Improve LED and LED flash class registration API"). devm_led_trigger_register() is introduced by commit 9534cc31dda2 ("leds: core: add managed version of led_trigger_register"). devm_of_led_get() is introduced by commit e389240ad992 ("leds: Add managed API to get a LED from a device driver"). Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20221103021331.1007699-1-yangyingliang@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-11-15Documentation: eisa: Fix typoAlbert Zhou
Fix a typo in the description of the kernel parameter eisa_bus.disable_dev within eisa.rst. Signed-off-by: Albert Zhou <albert.zhou.50@gmail.com> Link: https://lore.kernel.org/r/20221105080653.4741-1-albert.zhou.50@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-11-09Documentation: devres: add missing IIO helpersYang Yingliang
Add some missing device-managed helpers of iio to devres.rst. devm_iio_kfifo_buffer_setup_ext() is introduced by commit 0a21526bc1d4 ("iio: kfifo: add devm_iio_triggered_buffer_setup_ext variant"). devm_iio_triggered_buffer_setup_ext() is introduced by commit 5164c7889857 ("iio: triggered-buffer: add {devm_}iio_triggered_buffer_setup_ext variants"). devm_iio_hw_consumer_alloc() is introduced by b688c18d3006 ("IIO: hw_consumer: add devm_iio_hw_consumer_alloc"). devm_fwnode_iio_channel_get_by_name() is introduced by commit 1e64b9c5f9a0 ("iio: inkern: move to fwnode properties"). Fixes: 0a21526bc1d4 ("iio: kfifo: add devm_iio_triggered_buffer_setup_ext variant") Fixes: 5164c7889857 ("iio: triggered-buffer: add {devm_}iio_triggered_buffer_setup_ext variants") Fixes: b688c18d3006 ("IIO: hw_consumer: add devm_iio_hw_consumer_alloc") Fixes: 1e64b9c5f9a0 ("iio: inkern: move to fwnode properties") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20221103023402.1024437-1-yangyingliang@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-11-09Documentation: devres: add missing MEM helperYang Yingliang
Add missing devm_kstrdup_const() to devres.rst. It's introduce by commit 09d1ea1c7309 ("devres: provide devm_kstrdup_const()"). Fixes: 09d1ea1c7309 ("devres: provide devm_kstrdup_const()") Cc: Bartosz Golaszewski <brgl@bgdev.pl> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20221102025534.1450337-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-09docs/driver-api/miscellaneous: Remove kernel-doc of serial_core.cAkira Yokosawa
Since merge of tty-6.0-rc1, "make htmldocs" with Sphinx >=3.1 emits a bunch of warnings indicating duplicate kernel-doc comments from drivers/tty/serial/serial_core.c. This is due to the kernel-doc directive for serial_core.c in serial/drivers.rst added in the merge. It conflicts with an existing kernel-doc directive in miscellaneous.rst. Remove the latter directive and resolve the duplicates. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Fixes: 607ca0f742b7 ("Merge tag 'tty-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty") Cc: stable@vger.kernel.org # 6.0 Cc: Jiri Slaby <jslaby@suse.cz> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Jiri Slaby <jirislaby@kernel.org> Link: https://lore.kernel.org/r/4e54c76a-138a-07e0-985a-dd83cb622208@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-09Documentation: devres: add missing PHY helpersYang Yingliang
Add devm_usb_get_phy_by_phandle() to devres.rst. It's introduced by commit 5d3c28b5a42d ("usb: otg: add device tree support to otg library"). Add devm_usb_get_phy_by_node() to devres.rst. It's introduced by commit e842b84c8e72 ("usb: phy: Add interface to get phy give of device_node.") Fixes: 5d3c28b5a42d ("usb: otg: add device tree support to otg library") Fixes: e842b84c8e72 ("usb: phy: Add interface to get phy give of device_node.") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20221103020625.1003759-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-09docs/pinctrl: fix runtime pinmuxing exampleSiarhei Volkau
The example declares "struct pinctrl *p" but refers to "foo->p" which isn't declared in the context of the example. Signed-off-by: Siarhei Volkau <lis8215@gmail.com> Link: https://lore.kernel.org/r/20221101205159.1468069-3-lis8215@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-11-09docs/pinctrl: fix pinctrl_select_state examplesSiarhei Volkau
The function requires two arguments. Signed-off-by: Siarhei Volkau <lis8215@gmail.com> Link: https://lore.kernel.org/r/20221101205159.1468069-2-lis8215@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-11-07doc: phy: Document typical order of API callsSean Anderson
Document the typical order of API calls to used by new drivers and controllers. Many existing controllers follow this order, but some do not. This is especially true for controllers designed to work with one particular PHY driver, which may not need a call to (for example) phy_init. Signed-off-by: Sean Anderson <sean.anderson@seco.com> Link: https://lore.kernel.org/r/20221018175841.1906611-1-sean.anderson@seco.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-11-04Documentation: devres: add missing devm_acpi_dma_controller_free() helperYang Yingliang
Add missing devm_acpi_dma_controller_free() to devres.rst, it's introduced by commit 1b2e98bc1e35 ("dma: acpi-dma: introduce ACPI DMA helpers"). Fixes: 1b2e98bc1e35 ("dma: acpi-dma: introduce ACPI DMA helpers") Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20221102022701.1407289-1-yangyingliang@huawei.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-11-03Documentation: Make formatting consistent for rs485 docsIlpo Järvinen
Tweak styling of names that come directly from the code. Suggested-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20221019093343.9546-6-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-03Documentation: rs485: Fix struct referencingIlpo Järvinen
Use "struct serial_rs485" to get the references properly recognized. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20221019093343.9546-5-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-03Documentation: rs485: Mention uart_get_rs485_mode()Ilpo Järvinen
Add to rs485 documentation that serial core prepares the struct serial_rs485 when uart_get_rs485_mode() is called. Remove the wrong claim that the driver must fill it by itself. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20221019093343.9546-4-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-03Documentation: rs485: Link reference properlyIlpo Järvinen
Link DT bindings reference properly. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20221019093343.9546-3-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-03serial: Convert serial_rs485 to kernel docIlpo Järvinen
Convert struct serial_rs485 comments to kernel doc format and include it into documentation. Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20221019093343.9546-2-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-03tty: serial: introduce transmit helpersJiri Slaby (SUSE)
Many serial drivers do the same thing: * send x_char if set * keep sending from the xmit circular buffer until either - the loop reaches the end of the xmit buffer - TX is stopped - HW fifo is full * check for pending characters and: - wake up tty writers to fill for more data into xmit buffer - stop TX if there is nothing in the xmit buffer The only differences are: * how to write the character to the HW fifo * the check of the end condition: - is the HW fifo full? - is limit of the written characters reached? So unify the above into two helpers: * uart_port_tx_limited() -- it performs the above taking the written characters limit into account, and * uart_port_tx() -- the same as above, except it only checks the HW readiness, not the characters limit. The HW specific operations (as stated as "differences" above) are passed as arguments to the macros. They are: * tx_ready -- returns true if HW can accept more data. * put_char -- write a character to the device. * tx_done -- when the write loop is done, perform arbitrary action before potential invocation of ops->stop_tx() happens. Note that the above are macros. This means the code is generated in place and the above 3 arguments are "inlined". I.e. no added penalty by generating call instructions for every single character. Nor any indirect calls. (As in some previous versions of this patchset.) Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org> Link: https://lore.kernel.org/r/20221004104927.14361-2-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-02Documentation: devres: add missing I2C helperYang Yingliang
Add missing devm_i2c_add_adapter() to devres.rst. It's introduced by commit 07740c92ae57 ("i2c: core: add managed function for adding i2c adapters"). Fixes: 07740c92ae57 ("i2c: core: add managed function for adding i2c adapters") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Acked-by: Yicong Yang <yangyicong@hisilicon.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-11-02regulator: docs: add missing helperYang Yingliang
Add missing devm_regulator_bulk_get_const() to devres.rst, it's introduced by commit 1de452a0edda ("regulator: core: Allow drivers to define their init data as const"). Fixes: 1de452a0edda ("regulator: core: Allow drivers to define their init data as const") Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: Douglas Anderson <dianders@chromium.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20221102020716.1397449-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-11-01spi: Update reference to struct spi_controllerJonathan Neuschäfer
struct spi_master has been renamed to struct spi_controller. Update the reference in spi.rst to make it clickable again. Fixes: 8caab75fd2c2 ("spi: Generalize SPI "master" to "controller"") Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Link: https://lore.kernel.org/r/20221101173252.1069294-1-j.neuschaefer@gmx.net Signed-off-by: Mark Brown <broonie@kernel.org>
2022-10-27Merge tag 'hardening-v6.1-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening fixes from Kees Cook: - Fix older Clang vs recent overflow KUnit test additions (Nick Desaulniers, Kees Cook) - Fix kern-doc visibility for overflow helpers (Kees Cook) * tag 'hardening-v6.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: overflow: Refactor test skips for Clang-specific issues overflow: disable failing tests for older clang versions overflow: Fix kern-doc markup for functions
2022-10-25overflow: Fix kern-doc markup for functionsKees Cook
Fix the kern-doc markings for several of the overflow helpers and move their location into the core kernel API documentation, where it belongs (it's not driver-specific). Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: linux-hardening@vger.kernel.org Reviewed-by: Akira Yokosawa <akiyks@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2022-10-25Merge tag 'drm-misc-next-2022-10-20' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 6.2: UAPI Changes: - Documentation for page-flip flags Cross-subsystem Changes: - dma-buf: Add unlocked variant of vmapping and attachment-mapping functions Core Changes: - atomic-helpers: CRTC primary plane test fixes - connector: TV API consistency improvements, cmdline parsing improvements - crtc-helpers: Introduce drm_crtc_helper_atomic_check() helper - edid: Fixes for HFVSDB parsing, - fourcc: Addition of the Vivante tiled modifier - makefile: Sort and reorganize the objects files - mode_config: Remove fb_base from drm_mode_config_funcs - sched: Add a module parameter to change the scheduling policy, refcounting fix for fences - tests: Sort the Kunit tests in the Makefile, improvements to the DP-MST tests - ttm: Remove unnecessary drm_mm_clean() call Driver Changes: - New driver: ofdrm - Move all drivers to a common dma-buf locking convention - bridge: - adv7533: Remove dynamic lane switching - it6505: Runtime PM support - ps8640: Handle AUX defer messages - tc358775: Drop soft-reset over I2C - ast: Atomic Gamma LUT Support, Convert to SHMEM, various improvements - lcdif: Support for YUV planes - mgag200: Fix PLL Setup on some revisions - udl: Modesetting improvements, hot-unplug support - vc4: Fix support for PAL-M Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20221020072405.g3o4hxuk75gmeumw@houat
2022-10-22Merge tag 'media/v6.1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull missed media updates from Mauro Carvalho Chehab: "It seems I screwed-up my previous pull request: it ends up that only half of the media patches that were in linux-next got merged in -rc1. The script which creates the signed tags silently failed due to 5.19->6.0 so it ended generating a tag with incomplete stuff. So here are the missing parts: - a DVB core security fix - lots of fixes and cleanups for atomisp staging driver - old drivers that are VB1 are being moved to staging to be deprecated - several driver updates - mostly for embedded systems, but there are also some things addressing issues with some PC webcams, in the UVC video driver" * tag 'media/v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (163 commits) media: sun6i-csi: Move csi buffer definition to main header file media: sun6i-csi: Introduce and use video helper functions media: sun6i-csi: Add media ops with link notify callback media: sun6i-csi: Remove controls handler from the driver media: sun6i-csi: Register the media device after creation media: sun6i-csi: Pass and store csi device directly in video code media: sun6i-csi: Tidy up video code media: sun6i-csi: Tidy up v4l2 code media: sun6i-csi: Tidy up Kconfig media: sun6i-csi: Use runtime pm for clocks and reset media: sun6i-csi: Define and use variant to get module clock rate media: sun6i-csi: Always set exclusive module clock rate media: sun6i-csi: Tidy up platform code media: sun6i-csi: Refactor main driver data structures media: sun6i-csi: Define and use driver name and (reworked) description media: cedrus: Add a Kconfig dependency on RESET_CONTROLLER media: sun8i-rotate: Add a Kconfig dependency on RESET_CONTROLLER media: sun8i-di: Add a Kconfig dependency on RESET_CONTROLLER media: sun4i-csi: Add a Kconfig dependency on RESET_CONTROLLER media: sun6i-csi: Add a Kconfig dependency on RESET_CONTROLLER ...
2022-10-18Merge drm/drm-next into drm-misc-nextMaxime Ripard
Let's kick-off this release cycle. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-10-18dma-buf: Document dynamic locking conventionDmitry Osipenko
Add documentation for the dynamic locking convention. The documentation tells dma-buf API users when they should take the reservation lock and when not. Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221017172229.42269-20-dmitry.osipenko@collabora.com
2022-10-17Documentation: gpio: Remove text about ARCH_NR_GPIOSChristophe Leroy
ARCH_NR_GPIOS have been removed, clean up the documentation. After this patch, the only place when ARCH_NR_GPIOS remains is in translations/zh_CN/gpio.txt and translations/zh_TW/gpio.txt. I don't have the skills to update that, anyway those two files are already out of sync as they are still mentionning ARCH_REQUIRE_GPIOLIB which was removed by commit 65053e1a7743 ("gpio: delete ARCH_[WANTS_OPTIONAL|REQUIRE]_GPIOLIB") Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2022-10-12Merge tag 'vfio-v6.1-rc1' of https://github.com/awilliam/linux-vfioLinus Torvalds
Pull VFIO updates from Alex Williamson: - Prune private items from vfio_pci_core.h to a new internal header, fix missed function rename, and refactor vfio-pci interrupt defines (Jason Gunthorpe) - Create consistent naming and handling of ioctls with a function per ioctl for vfio-pci and vfio group handling, use proper type args where available (Jason Gunthorpe) - Implement a set of low power device feature ioctls allowing userspace to make use of power states such as D3cold where supported (Abhishek Sahu) - Remove device counter on vfio groups, which had restricted the page pinning interface to singleton groups to account for limitations in the type1 IOMMU backend. Document usage as limited to emulated IOMMU devices, ie. traditional mdev devices where this restriction is consistent (Jason Gunthorpe) - Correct function prefix in hisi_acc driver incurred during previous refactoring (Shameer Kolothum) - Correct typo and remove redundant warning triggers in vfio-fsl driver (Christophe JAILLET) - Introduce device level DMA dirty tracking uAPI and implementation in the mlx5 variant driver (Yishai Hadas & Joao Martins) - Move much of the vfio_device life cycle management into vfio core, simplifying and avoiding duplication across drivers. This also facilitates adding a struct device to vfio_device which begins the introduction of device rather than group level user support and fills a gap allowing userspace identify devices as vfio capable without implicit knowledge of the driver (Kevin Tian & Yi Liu) - Split vfio container handling to a separate file, creating a more well defined API between the core and container code, masking IOMMU backend implementation from the core, allowing for an easier future transition to an iommufd based implementation of the same (Jason Gunthorpe) - Attempt to resolve race accessing the iommu_group for a device between vfio releasing DMA ownership and removal of the device from the IOMMU driver. Follow-up with support to allow vfio_group to exist with NULL iommu_group pointer to support existing userspace use cases of holding the group file open (Jason Gunthorpe) - Fix error code and hi/lo register manipulation issues in the hisi_acc variant driver, along with various code cleanups (Longfang Liu) - Fix a prior regression in GVT-g group teardown, resulting in unreleased resources (Jason Gunthorpe) - A significant cleanup and simplification of the mdev interface, consolidating much of the open coded per driver sysfs interface support into the mdev core (Christoph Hellwig) - Simplification of tracking and locking around vfio_groups that fall out from previous refactoring (Jason Gunthorpe) - Replace trivial open coded f_ops tests with new helper (Alex Williamson) * tag 'vfio-v6.1-rc1' of https://github.com/awilliam/linux-vfio: (77 commits) vfio: More vfio_file_is_group() use cases vfio: Make the group FD disassociate from the iommu_group vfio: Hold a reference to the iommu_group in kvm for SPAPR vfio: Add vfio_file_is_group() vfio: Change vfio_group->group_rwsem to a mutex vfio: Remove the vfio_group->users and users_comp vfio/mdev: add mdev available instance checking to the core vfio/mdev: consolidate all the description sysfs into the core code vfio/mdev: consolidate all the available_instance sysfs into the core code vfio/mdev: consolidate all the name sysfs into the core code vfio/mdev: consolidate all the device_api sysfs into the core code vfio/mdev: remove mtype_get_parent_dev vfio/mdev: remove mdev_parent_dev vfio/mdev: unexport mdev_bus_type vfio/mdev: remove mdev_from_dev vfio/mdev: simplify mdev_type handling vfio/mdev: embedd struct mdev_parent in the parent data structure vfio/mdev: make mdev.h standalone includable drm/i915/gvt: simplify vgpu configuration management drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types ...
2022-10-07Merge tag 'driver-core-6.1-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the big set of driver core and debug printk changes for 6.1-rc1. Included in here is: - dynamic debug updates for the core and the drm subsystem. The drm changes have all been acked by the relevant maintainers - kernfs fixes for syzbot reported problems - kernfs refactors and updates for cgroup requirements - magic number cleanups and removals from the kernel tree (they were not being used and they really did not actually do anything) - other tiny cleanups All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (74 commits) docs: filesystems: sysfs: Make text and code for ->show() consistent Documentation: NBD_REQUEST_MAGIC isn't a magic number a.out: restore CMAGIC device property: Add const qualifier to device_get_match_data() parameter drm_print: add _ddebug descriptor to drm_*dbg prototypes drm_print: prefer bare printk KERN_DEBUG on generic fn drm_print: optimize drm_debug_enabled for jump-label drm-print: add drm_dbg_driver to improve namespace symmetry drm-print.h: include dyndbg header drm_print: wrap drm_*_dbg in dyndbg descriptor factory macro drm_print: interpose drm_*dbg with forwarding macros drm: POC drm on dyndbg - use in core, 2 helpers, 3 drivers. drm_print: condense enum drm_debug_category debugfs: use DEFINE_SHOW_ATTRIBUTE to define debugfs_regset32_fops driver core: use IS_ERR_OR_NULL() helper in device_create_groups_vargs() Documentation: ENI155_MAGIC isn't a magic number Documentation: NBD_REPLY_MAGIC isn't a magic number nbd: remove define-only NBD_MAGIC, previously magic number Documentation: FW_HEADER_MAGIC isn't a magic number Documentation: EEPROM_MAGIC_VALUE isn't a magic number ...
2022-10-07Merge tag 'media/v6.1-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - New driver for Mediatek MDP V3 - New driver for NXP i.MX DW100 dewarper - Zoran driver got promoted from staging - Hantro and related drivers got promoted from staging - Several VB1 drivers got moved to staging/deprecated (cpia2, fsl-viu, meye, saa7146, av7110, stkwebcam, tm6000, vpfe_capture, davinci, zr364xx) - Usual set of driver fixes, improvements and cleanups * tag 'media/v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (107 commits) media: destage Hantro VPU driver media: platform: mtk-mdp3: add MediaTek MDP3 driver media: dt-binding: mediatek: add bindings for MediaTek CCORR and WDMA media: dt-binding: mediatek: add bindings for MediaTek MDP3 components media: xilinx: vipp: Fix refcount leak in xvip_graph_dma_init media: xilinx: video: Add 1X12 greyscale format media: xilinx: csi2rxss: Add 1X12 greyscale format media: staging: media: imx: imx7-media-csi: Increase video mem limit media: uvcvideo: Limit power line control for Sonix Technology media: uvcvideo: Use entity get_cur in uvc_ctrl_set media: uvcvideo: Fix typo 'the the' in comment media: uvcvideo: Use indexed loops in uvc_ctrl_init_ctrl() media: uvcvideo: Fix memory leak in uvc_gpio_parse media: renesas: vsp1: Add support for RZ/G2L VSPD media: renesas: vsp1: Add VSP1_HAS_NON_ZERO_LBA feature bit media: renesas: vsp1: Add support for VSP software version media: renesas: vsp1: Add support to deassert/assert reset line media: dt-bindings: media: renesas,vsp1: Document RZ/G2L VSPD bindings media: meson: vdec: add missing clk_disable_unprepare on error in vdec_hevc_start() media: amphion: fix a bug that vpu core may not resume after suspend ...
2022-10-04Merge tag 'regulator-v6.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator updates from Mark Brown: "The core work this time around has mostly been around the code to manage regulator modes, simplifying the interface for configuring modes to not take account of the voltage and as a side effect resolving a bootstrapping issue on systems where we can't read the voltage from the regulator. Otherwise it's been quite a quiet release with some new drivers and a devm helper: - Make the load handling in the Qualcomm RPMH regulators much more idiomatic and general cleanups to the handling of load configuration - devm helper for a combined get and enable operation - Support for MediaTek MT6331, Qualcomm PM660, 660L and PM6125, Texas Instruments TPS65219" * tag 'regulator-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (45 commits) dt-bindings: gpio-regulator: add vin-supply property support regulator: gpio: Add input_supply support in gpio_regulator_config regulator: tps65219: Fix is_enabled checking in tps65219_set_bypass regulator: qcom,rpmh: add pm660 and pm660l pmics regulator: qcom-rpmh: add pm660 and pm660l pmics regulator: of: Fix kernel-doc regulator: of: Fix kernel-doc regulator: Add driver for MT6332 PMIC regulators regulator: Add bindings for MT6332 regulator regulator: Add driver for MT6331 PMIC regulators regulator: Add bindings for MT6331 regulator regulator: tps65219: Fix .bypass_val_on setting regulator: qcom_rpm: Fix circular deferral regression regulator: core: Prevent integer underflow regulator: dt-bindings: qcom,rpmh: Indicate regulator-allow-set-load dependencies regulator: bd9576: switch to using devm_fwnode_gpiod_get() regulator: bd71815: switch to using devm_fwnode_gpiod_get() regulator: core: Fix regulator supply registration with sysfs regulator: tps65219: change tps65219_regulator_irq_types to static regulator: core: Don't err if allow-set-load but no allowed-modes ...
2022-10-04Merge tag 'hwmon-for-v6.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "New drivers: - Driver for MAX31760 fan speed controller - Driver for TEXAS TPS546D24 Buck Converter - Driver for EMC2301/2/3/5 RPM-based PWM Fan Speed Controller Removed drivers: - Drop obsolete asus_wmi_ec_sensors driver Cleanups, affecting various drivers: - Use DEFINE_SIMPLE_DEV_PM_OPS where appropriate - Remove forward declarations - Move from strlcpy with unused retval to strscpy - Make use of devm_clk_get_enabled() - Drop devm_of_pwm_get() Other notable cleanup and improvements: - Support for additional USB devide ID and support for reporting of rail mode via debugfs added to corsair-psu driver - Support for aditional USB ID in nzxt-smart2 driver - Support for Aquacomputer High Flow Next in aquacomputer_d5next driver - Major cleanup of pwm-fan driver - Major cleanup of mr75203 driver, and added support for new device revision And various other minor fixes and cleanups" * tag 'hwmon-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (86 commits) hwmon: (corsair-psu) add USB id of new revision of the HX1000i psu hwmon: (pmbus/mp2888) Fix sensors readouts for MPS Multi-phase mp2888 controller dt-bindings: hwmon: sensirion,shtc1: Clean up spelling mistakes and grammar hwmon: (nct6683) remove unused variable in nct6683_create_attr_group hwmon: w83627hf: Reorder symbols to get rid of a few forward declarations hwmon: (ina3221) Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() hwmon: (w83627ehf) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (tmp108) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (tmp103) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (tmp102) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (pwm-fan) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (nct6775) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (max6639) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (max31730) witch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (max31722) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (ltc2947) Switch to EXPORT_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (lm90) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (it87) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (gpio-fan) Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() hwmon: (adt7x10) Switch to EXPORT_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() ...
2022-10-04vfio/mdev: consolidate all the description sysfs into the core codeChristoph Hellwig
Every driver just emits a string, simply add a method to the mdev_driver to return it and provide a standard sysfs show function. Remove the now unused types_attrs field in struct mdev_driver and the support code for it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Link: https://lore.kernel.org/r/20220923092652.100656-14-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-10-04vfio/mdev: consolidate all the available_instance sysfs into the core codeChristoph Hellwig
Every driver just print a number, simply add a method to the mdev_driver to return it and provide a standard sysfs show function. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Link: https://lore.kernel.org/r/20220923092652.100656-13-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-10-04vfio/mdev: consolidate all the name sysfs into the core codeChristoph Hellwig
Every driver just emits a static string, simply add a field to the mdev_type for the driver to fill out or fall back to the sysfs name and provide a standard sysfs show function. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Link: https://lore.kernel.org/r/20220923092652.100656-12-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-10-04vfio/mdev: consolidate all the device_api sysfs into the core codeJason Gunthorpe
Every driver just emits a static string, simply feed it through the ops and provide a standard sysfs show function. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Link: https://lore.kernel.org/r/20220923092652.100656-11-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-10-04vfio/mdev: remove mdev_parent_devChristoph Hellwig
Just open code the dereferences in the only user. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Link: https://lore.kernel.org/r/20220923092652.100656-9-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-10-04vfio/mdev: simplify mdev_type handlingChristoph Hellwig
Instead of abusing struct attribute_group to control initialization of struct mdev_type, just define the actual attributes in the mdev_driver, allocate the mdev_type structures in the caller and pass them to mdev_register_parent. This allows the caller to use container_of to get at the containing structure and thus significantly simplify the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Link: https://lore.kernel.org/r/20220923092652.100656-6-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-10-04vfio/mdev: embedd struct mdev_parent in the parent data structureChristoph Hellwig
Simplify mdev_{un}register_device by requiring the caller to pass in a structure allocate as part of the parent device structure. This removes the need for a list of parents and the separate mdev_parent refcount as we can simplify rely on the reference to the parent device. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Link: https://lore.kernel.org/r/20220923092652.100656-5-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-09-29Documentation: devres: add missing IO helperYang Yingliang
Add missing devm_request_free_mem_region() to devres.rst. It's introduced by commit 0092908d16c6 ("mm: factor out a devm_request_free_mem_region helper"). Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220927080215.1359979-1-yangyingliang@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-09-29Documentation: devres: update IRQ helperYang Yingliang
devm_irq_sim_init() has been changed to devm_irq_domain_create_sim() in commit 337cbeb2c13e ("genirq/irq_sim: Simplify the API"). Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220927083819.12484-1-yangyingliang@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-09-27Documentation: devres: add missing SPI helperYang Yingliang
Add devm_spi_alloc_master() and devm_spi_alloc_slave() to devres.rst. They are introduced by commit 5e844cc37a5c ("spi: Introduce device-managed SPI controller allocation"). Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Lukas Wunner <lukas@wunner.de> Link: https://lore.kernel.org/r/20220923141803.75734-1-yangyingliang@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-09-27Documentation: devres: add missing PINCTRL helpersYang Yingliang
Add devm_pinctrl_get_select() and devm_pinctrl_register_and_init() to devres.rst. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220922153737.2863951-1-yangyingliang@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-09-27Remove duplicate words inside documentationAkhil Raj
I have removed repeated `the` inside the documentation Signed-off-by: Akhil Raj <lf32.dev@gmail.com> Link: https://lore.kernel.org/r/20220827145359.32599-1-lf32.dev@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-09-24media: mc: entity: Rewrite media_pipeline_start()Laurent Pinchart
[Note: the code is mostly from Laurent but the patch description is from Tomi] The media_pipeline_start() and media_pipeline_stop() functions use the media graph walk API to traverse the graph and validate the pipeline. The graph walk traverses the media graph following links between the entities. Also, while the pipeline can't change between the start and stop calls, the graph is walked again from scratch at stop time, or any time a driver needs to inspect the pipeline. With the upcoming multiplexed streams support we will need a bit more intelligent pipeline construction, as e.g. two independent streams may be passing through a single entity via separate pads in which case those pads should not be part of the same pipeline. This patch essentially rewrites the media_pipeline_start/stop so that a pipeline is defined as a set of pads instead of entities and the media graph traversal considers the pad interdependencies when choosing which links to follow. Currently all the entity's pads are considered as interdependent. This means that the behavior with all the current drivers stays the same, but in the future we can define a more fine-grained pipeline construction. Additionally the media pipeline's pads are cached at media_pipeline_start() time, and re-used at media_pipeline_stop() which avoid the need to re-walk the whole graph as the previous implementation did. Also, caching pads in the pipeline can serve in the future as the foundation to provide a better API than the media graph walk to drivers to iterate over pads and entities in the pipeline. Note that the old media_pipeline_start/stop used the media graph walk API. The new version does not use the media graph walk API, but instead a new implementation. There are two reasons for not changing the graph walk: it proved to be rather difficult to change the graph walk to have the features implemented in this patch, and second, this keeps the backward compatibility of the graph walk as there are users of the graph walk API The long term plan is that all the existing code would be converted to use the new cached pipeline, thus allowing us to remove the graph walk. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-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>
2022-09-24media: Documentation: mc: add definitions for stream and pipelineTomi Valkeinen
The doc talks about streams and pipelines, but doesn't really define them. This is an attempt to define them according to my understanding. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-09-19pwm: core: Get rid of unused devm_of_pwm_get()Andy Shevchenko
The devm_of_pwm_get() has recently lost its single user, drop the dead API as well. Note, the new code should use either plain pwm_get() or managed devm_pwm_get() or devm_fwnode_pwm_get() APIs. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220826172642.16404-2-andriy.shevchenko@linux.intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-09-01devres: remove devm_ioremap_npChristoph Hellwig
devm_ioremap_np has never been used anywhere since it was added in early 2021, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220822061424.151819-1-hch@lst.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-29media: avoid use of 'videobuf'Hans Verkuil
The term 'videobuf' typically refers to the old videobuf version 1 framework. Avoid using this word in drivers that are converted to vb2. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-08-23docs: devres: regulator: Add new get_enable functions to devres.rstMatti Vaittinen
Add the new devm_regulator_get_enable() and devm_regulator_get_enable_optional() to devres.rst Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/55efb5a23822b8e1558d560a6ad906eadbc39a17.1660934107.git.mazziesaccount@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>