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2021-03-11docs: iio: mark "repeat" sysfs attribute as optionalLuca Ceresoli1-1/+1
Show that this field is optional, just like the shift value. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Link: https://lore.kernel.org/r/20210215143511.25471-6-luca@lucaceresoli.net Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11docs: iio: fix bullet list formattingLuca Ceresoli1-5/+5
This 2nd-level bullet list is not properly ReST-formatted and thus it gets rendered as a unique paragraph quite unreadable. Fix by adding spaces as needed. While there also swap "shift" and "repeat" so they are in the correct order. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Link: https://lore.kernel.org/r/20210215143511.25471-5-luca@lucaceresoli.net Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11docs: iio: document the 'index' attribute tooLuca Ceresoli1-0/+1
Two out of three attributes are documented, document the third one too. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Link: https://lore.kernel.org/r/20210215143511.25471-4-luca@lucaceresoli.net Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11docs: iio: fix directory namingLuca Ceresoli1-1/+1
This directory is a, well, directory, not a file. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Link: https://lore.kernel.org/r/20210215143511.25471-3-luca@lucaceresoli.net Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11iio: buffer-dma,adi-axi-adc: introduce devm_iio_dmaengine_buffer_setup()Alexandru Ardelean1-0/+1
This change does a conversion of the devm_iio_dmaengine_buffer_alloc() to devm_iio_dmaengine_buffer_setup(). This will allocate an IIO DMA buffer and attach it to the IIO device, similar to devm_iio_triggered_buffer_setup() (though the underlying code is different, the final logic is the same). Since the only user of the devm_iio_dmaengine_buffer_alloc() was the adi-axi-adc driver, this change does the replacement in a single go in the driver. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20210215104043.91251-7-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11iio: kfifo: un-export devm_iio_kfifo_allocate() functionAlexandru Ardelean1-1/+0
At this point all drivers should use devm_iio_kfifo_buffer_setup() instead of manually allocating via devm_iio_kfifo_allocate() and assigning ops and modes. With this change, the devm_iio_kfifo_allocate() will be made private to the IIO core, since all drivers should call either devm_iio_kfifo_buffer_setup() or devm_iio_triggered_buffer_setup() to create a kfifo buffer. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20210215104043.91251-6-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11iio: kfifo: add devm_iio_kfifo_buffer_setup() helperAlexandru Ardelean1-0/+1
This change adds the devm_iio_kfifo_buffer_setup() helper/short-hand, which groups the simple routine of allocating a kfifo buffers via devm_iio_kfifo_allocate() and calling iio_device_attach_buffer(). The mode_flags parameter is required, as the IIO kfifo supports 2 modes: INDIO_BUFFER_SOFTWARE & INDIO_BUFFER_TRIGGERED. The setup_ops parameter is optional. This function will be a bit more useful when needing to define multiple buffers per IIO device. The naming for this function has been inspired from iio_triggered_buffer_setup() since that one does a kfifo alloc + a pollfunc alloc. So, this should have a more familiar ring to what it is. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20210215104043.91251-3-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-02-24Merge tag 'char-misc-5.12-rc1' of ↵Linus Torvalds2-109/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc/whatever driver subsystem updates for 5.12-rc1. Over time it seems like this tree is collecting more and more tiny driver subsystems in one place, making it easier for those maintainers, which is why this is getting larger. Included in here are: - coresight driver updates - habannalabs driver updates - virtual acrn driver addition (proper acks from the x86 maintainers) - broadcom misc driver addition - speakup driver updates - soundwire driver updates - fpga driver updates - amba driver updates - mei driver updates - vfio driver updates - greybus driver updates - nvmeem driver updates - phy driver updates - mhi driver updates - interconnect driver udpates - fsl-mc bus driver updates - random driver fix - some small misc driver updates (rtsx, pvpanic, etc.) All of these have been in linux-next for a while, with the only reported issue being a merge conflict due to the dfl_device_id addition from the fpga subsystem in here" * tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits) spmi: spmi-pmic-arb: Fix hw_irq overflow Documentation: coresight: Add PID tracing description coresight: etm-perf: Support PID tracing for kernel at EL2 coresight: etm-perf: Clarify comment on perf options ACRN: update MAINTAINERS: mailing list is subscribers-only regmap: sdw-mbq: use MODULE_LICENSE("GPL") regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ regmap: sdw: use _no_pm functions in regmap_read/write soundwire: intel: fix possible crash when no device is detected MAINTAINERS: replace my with email with replacements mhi: Fix double dma free uapi: map_to_7segment: Update example in documentation uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue firewire: replace tricky statement by two simple ones vme: make remove callback return void firmware: google: make coreboot driver's remove callback return void firmware: xilinx: Use explicit values for all enum values sample/acrn: Introduce a sample of HSM ioctl interface usage virt: acrn: Introduce an interface for Service VM to control vCPU ...
2021-02-24Merge tag 'cxl-for-5.12' of ↵Linus Torvalds3-0/+59
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull initial support for CXL (Compute Express Link) from Dan Williams: "Introduce an initial driver for CXL 2.0 Type-3 Memory Devices. CXL is Compute Express Link which released the 2.0 specification in November. The Linux relevant changes in CXL 2.0 are support for an OS to dynamically assign address space to memory devices, support for switches, persistent memory, and hotplug. A Type-3 Memory Device is a PCI enumerated device presenting the CXL Memory Device Class Code and implementing the CXL.mem protocol. CXL.mem allows device to advertise CPU and I/O coherent memory to the system, i.e. typical "System RAM" and "Persistent Memory" in Linux /proc/iomem terms. In addition to the CXL.mem fast path there is an administrative command hardware mailbox interface for maintenance and provisioning. It is this command interface that is the focus of the initial driver. With this driver a CXL device that is mapped by the BIOS can be administered by Linux. Linux support for CXL PMEM and dynamic CXL address space management are to be implemented post v5.12" Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 4cdadfd5e0a7 ("cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints") 13237183c735 ("cxl/mem: Add a "RAW" send command") 472b1ce6e9d6 ("cxl/mem: Enable commands via CEL") 57ee605b976c ("cxl/mem: Add set of informational commands") Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 8adaf747c9f0 ("cxl/mem: Find device capabilities") b39cb1052a5c ("cxl/mem: Register CXL memX devices") * tag 'cxl-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: cxl/mem: Fix potential memory leak cxl/mem: Return -EFAULT if copy_to_user() fails MAINTAINERS: Add maintainers of the CXL driver cxl/mem: Add set of informational commands cxl/mem: Enable commands via CEL cxl/mem: Add a "RAW" send command cxl/mem: Add basic IOCTL interface cxl/mem: Register CXL memX devices cxl/mem: Find device capabilities cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints
2021-02-22Merge tag 'docs-5.12' of git://git.lwn.net/linuxLinus Torvalds3-5/+17
Pull documentation updates from Jonathan Corbet: "It has been a relatively quiet cycle in docsland. - As promised, the minimum Sphinx version to build the docs is now 1.7, and we have dropped support for Python 2 entirely. That allowed the removal of a bunch of compatibility code. - A set of treewide warning fixups from Mauro that I applied after it became clear nobody else was going to deal with them. - The automarkup mechanism can now create cross-references from relative paths to RST files. - More translations, typo fixes, and warning fixes" * tag 'docs-5.12' of git://git.lwn.net/linux: (75 commits) docs: kernel-hacking: be more civil docs: Remove the Microsoft rhetoric Documentation/admin-guide: kernel-parameters: Update nohlt section doc/admin-guide: fix spelling mistake: "perfomance" -> "performance" docs: Document cross-referencing using relative path docs: Enable usage of relative paths to docs on automarkup docs: thermal: fix spelling mistakes Documentation: admin-guide: Update kvm/xen config option docs: Make syscalls' helpers naming consistent coding-style.rst: Avoid comma statements Documentation: /proc/loadavg: add 3 more field descriptions Documentation/submitting-patches: Add blurb about backtraces in commit messages Docs: drop Python 2 support Move our minimum Sphinx version to 1.7 Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams scripts/kernel-doc: add internal hyperlink to DOC: sections Update Documentation/admin-guide/sysctl/fs.rst docs: Update DTB format references docs: zh_CN: add iio index.rst translation docs/zh_CN: add iio ep93xx_adc.rst translation ...
2021-02-22Merge tag 'gpio-updates-for-v5.12' of ↵Linus Torvalds2-6/+7
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "It's been a relatively calm release cycle and we're actually removing more code than we're adding. Summary: - new driver for the Toshiba Visconti platform - rework of interrupt handling in gpio-tegra - updates for GPIO selftests: we're now using the character device to perform the subsystem checks - support for a new rcar variant + some code refactoring - refactoring of gpio-ep93xx - SPDX License identifier has been updated in the uapi header so that userspace programs bundling it can become fully REUSE-compliant - improvements to pwm handling in gpio-mvebu - support for interrupt handling and power management for gpio-xilinx as well as some code refactoring - support for a new chip variant in gpio-pca953x - removal of drivers: zte xs & intel-mid and removal of leftovers from intel-msic - impovements to intel drivers pulled from Andy Shevchenko - improvements to the gpio-aggregator virtual GPIO driver - and several minor tweaks and fixes to code and documentation all over the place" * tag 'gpio-updates-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (71 commits) gpio: pcf857x: Fix missing first interrupt gpio: ep93xx: refactor base IRQ number gpio: ep93xx: refactor ep93xx_gpio_add_bank gpio: ep93xx: Fix typo s/hierarchial/hierarchical gpio: ep93xx: drop to_irq binding gpio: ep93xx: Fix wrong irq numbers in port F gpio: uapi: use the preferred SPDX license identifier gpio: gpio-xilinx: Add check if width exceeds 32 gpio: gpio-xilinx: Add support for suspend and resume gpio: gpio-xilinx: Add interrupt support gpio: gpio-xilinx: Reduce spinlock array to array gpio: gpio-xilinx: Simplify with dev_err_probe() gpio: msic: Drop driver from Makefile gpio: wcove: Split out to_ireg() helper and deduplicate the code gpio: wcove: Switch to use regmap_set_bits(), regmap_clear_bits() gpio: wcove: Get rid of error prone casting in IRQ handler gpio: intel-mid: Remove driver for deprecated platform gpio: msic: Remove driver for deprecated platform gpio: aggregator: Remove trailing comma in terminator entries gpio: aggregator: Use compound literal from the header ...
2021-02-22Merge tag 'thermal-v5.12-rc1' of ↵Linus Torvalds1-13/+0
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal updates from Daniel Lezcano: - Use the newly introduced 'hot' and 'critical' ops for the acpi thermal driver (Daniel Lezcano) - Remove the notify ops as it is no longer used (Daniel Lezcano) - Remove the 'forced passive' option and the unused bind/unbind functions (Daniel Lezcano) - Remove the THERMAL_TRIPS_NONE and the code cleanup around this macro (Daniel Lezcano) - Rework the delays to make them pre-computed instead of computing them again and again at each polling interval (Daniel Lezcano) - Remove the pointless 'thermal_zone_device_reset' function (Daniel Lezcano) - Use the critical and hot ops to prevent an unexpected system shutdown on int340x (Kai-Heng Feng) - Make the cooling device state private to the thermal subsystem (Daniel Lezcano) - Prevent to use not-power-aware actor devices with the power allocator governor (Lukasz Luba) - Remove 'zx' and 'tango' support along with the corresponding platforms (Arnd Bergman) - Fix several issues on the Omap thermal driver (Tony Lindgren) - Add support for adc-tm5 PMIC thermal monitor for Qcom platforms (Dmitry Baryshkov) - Fix an initialization loop in the adc-tm5 (Colin Ian King) - Fix a return error check in the cpufreq cooling device (Viresh Kumar) * tag 'thermal-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (26 commits) thermal: cpufreq_cooling: freq_qos_update_request() returns < 0 on error thermal: qcom: Fix comparison with uninitialized variable channels_available thermal: qcom: add support for adc-tm5 PMIC thermal monitor dt-bindings: thermal: qcom: add adc-thermal monitor bindings thermal: ti-soc-thermal: Use non-inverted define for omap4 thermal: ti-soc-thermal: Simplify polling with iopoll thermal: ti-soc-thermal: Fix stuck sensor with continuous mode for 4430 thermal: ti-soc-thermal: Skip pointless register access for dra7 thermal/drivers/zx: Remove zx driver thermal/drivers/tango: Remove tango driver thermal: power allocator: fail binding for non-power actor devices thermal/core: Make cooling device state change private thermal: intel: pch: Fix unexpected shutdown at critical temperature thermal: int340x: Fix unexpected shutdown at critical temperature thermal/core: Remove pointless thermal_zone_device_reset() function thermal/core: Remove ms based delay fields thermal/core: Use precomputed jiffies for the polling thermal/core: Precompute the delays from msecs to jiffies thermal/core: Remove unused macro THERMAL_TRIPS_NONE thermal/core: Remove THERMAL_TRIPS_NONE test ...
2021-02-22Merge tag 'platform-drivers-x86-v5.12-1' of ↵Linus Torvalds11-0/+1670
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: "Highlights: - Microsoft Surface devices System Aggregator Module support - SW_TABLET_MODE reporting improvements - thinkpad_acpi keyboard language setting support - platform / DPTF profile settings support: - Base / userspace API parts merged from Rafael's acpi-platform branch - thinkpad_acpi and ideapad-laptop support through pdx86 - Remove support for some obsolete Intel MID platforms through merging of the shared intel-mid-removal branch - Big cleanup of the ideapad-laptop driver - Misc other fixes / new hw support / quirks" * tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (99 commits) platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds platform/surface: aggregator: Fix access of unaligned value tools/power/x86/intel-speed-select: Update version to 1.8 tools/power/x86/intel-speed-select: Add new command to get/set TRL tools/power/x86/intel-speed-select: Add new command turbo-mode Platform: OLPC: Constify static struct regulator_ops platform/surface: Add Surface Hot-Plug driver platform/x86: intel_scu_wdt: Drop mistakenly added const platform/x86: Kconfig: add missing selects for ideapad-laptop platform/x86: acer-wmi: Don't use ACPI_EXCEPTION() platform/x86: thinkpad_acpi: Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on platform/x86: thinkpad_acpi: Fix 'warning: no previous prototype for' warnings platform/x86: msi-wmi: Fix variable 'status' set but not used compiler warning platform/surface: surface3-wmi: Fix variable 'status' set but not used compiler warning platform/x86: Move all dell drivers to their own subdirectory Documentation/ABI: sysfs-platform-ideapad-laptop: conservation_mode attribute Documentation/ABI: sysfs-platform-ideapad-laptop: update device attribute paths platform/x86: ideapad-laptop: add "always on USB charging" control support platform/x86: ideapad-laptop: add keyboard backlight control support platform/x86: ideapad-laptop: send notification about touchpad state change to sysfs ...
2021-02-21Merge tag 'media/v5.12-1' of ↵Linus Torvalds7-53/+81
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - some core fixes in VB2 mem2mem support - some improvements and cleanups in V4L2 async kAPI - newer controls in V4L2 API for H-264 and HEVC codecs - allegro-dvt driver was promoted from staging - new i2c sendor drivers: imx334, ov5648, ov8865 - new automobile camera module: rdacm21 - ipu3 cio2 driver started gained support for some ACPI BIOSes - new ATSC frontend: MaxLinear mxl692 VSB tuner/demod - the SMIA/CCS driver gained more support for CSS standard - several driver fixes, updates and improvements * tag 'media/v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (362 commits) media: v4l: async: Fix kerneldoc documentation for async functions media: i2c: max9271: Add MODULE_* macros media: i2c: Kconfig: Make MAX9271 a module media: imx334: 'ret' is uninitialized, should have been PTR_ERR() media: i2c: Add imx334 camera sensor driver media: dt-bindings: media: Add bindings for imx334 media: ov8856: Configure sensor for GRBG Bayer for all modes media: i2c: imx219: Implement V4L2_CID_LINK_FREQ control media: ov5675: fix vflip/hflip control media: ipu3-cio2: Build bridge only if ACPI is enabled media: Remove the legacy v4l2-clk API media: ov6650: Use the generic clock framework media: mt9m111: Use the generic clock framework media: ov9640: Use the generic clock framework media: pxa_camera: Drop the v4l2-clk clock register media: mach-pxa: Register the camera sensor fixed-rate clock media: i2c: imx258: get clock from device properties and enable it via runtime PM media: i2c: imx258: simplify getting state container media: i2c: imx258: add support for binding via device tree media: dt-bindings: media: imx258: add bindings for IMX258 sensor ...
2021-02-16cxl/mem: Add basic IOCTL interfaceBen Widawsky1-0/+12
Add a straightforward IOCTL that provides a mechanism for userspace to query the supported memory device commands. CXL commands as they appear to userspace are described as part of the UAPI kerneldoc. The command list returned via this IOCTL will contain the full set of commands that the driver supports, however, some of those commands may not be available for use by userspace. Memory device commands first appear in the CXL 2.0 specification. They are submitted through a mailbox mechanism specified in the CXL 2.0 specification. The send command allows userspace to issue mailbox commands directly to the hardware. The list of available commands to send are the output of the query command. The driver verifies basic properties of the command and possibly inspect the input (or output) payload to determine whether or not the command is allowed (or might taint the kernel). Reported-by: kernel test robot <lkp@intel.com> # bug in earlier revision Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> (v2) Cc: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/20210217040958.1354670-5-ben.widawsky@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2021-02-16cxl/mem: Register CXL memX devicesDan Williams1-0/+5
Create the /sys/bus/cxl hierarchy to enumerate: * Memory Devices (per-endpoint control devices) * Memory Address Space Devices (platform address ranges with interleaving, performance, and persistence attributes) * Memory Regions (active provisioned memory from an address space device that is in use as System RAM or delegated to libnvdimm as Persistent Memory regions). For now, only the per-endpoint control devices are registered on the 'cxl' bus. However, going forward it will provide a mechanism to coordinate cross-device interleave. Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> (v2) Link: https://lore.kernel.org/r/20210217040958.1354670-4-ben.widawsky@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2021-02-16cxl/mem: Find device capabilitiesBen Widawsky1-0/+14
Provide enough functionality to utilize the mailbox of a memory device. The mailbox is used to interact with the firmware running on the memory device. The flow is proven with one implemented command, "identify". Because the class code has already told the driver this is a memory device and the identify command is mandatory. CXL devices contain an array of capabilities that describe the interactions software can have with the device or firmware running on the device. A CXL compliant device must implement the device status and the mailbox capability. Additionally, a CXL compliant memory device must implement the memory device capability. Each of the capabilities can [will] provide an offset within the MMIO region for interacting with the CXL device. The capabilities tell the driver how to find and map the register space for CXL Memory Devices. The registers are required to utilize the CXL spec defined mailbox interface. The spec outlines two mailboxes, primary and secondary. The secondary mailbox is earmarked for system firmware, and not handled in this driver. Primary mailboxes are capable of generating an interrupt when submitting a background command. That implementation is saved for a later time. Reported-by: Colin Ian King <colin.king@canonical.com> (coverity) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> (smatch) Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> (v2) Link: https://www.computeexpresslink.org/download-the-specification Link: https://lore.kernel.org/r/20210217040958.1354670-3-ben.widawsky@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2021-02-16cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpointsDan Williams3-0/+28
The CXL.mem protocol allows a device to act as a provider of "System RAM" and/or "Persistent Memory" that is fully coherent as if the memory was attached to the typical CPU memory controller. With the CXL-2.0 specification a PCI endpoint can implement a "Type-3" device interface and give the operating system control over "Host Managed Device Memory". See section 2.3 Type 3 CXL Device. The memory range exported by the device may optionally be described by the platform firmware memory map, or by infrastructure like LIBNVDIMM to provision persistent memory capacity from one, or more, CXL.mem devices. A pre-requisite for Linux-managed memory-capacity provisioning is this cxl_mem driver that can speak the mailbox protocol defined in section 8.2.8.4 Mailbox Registers. For now just land the initial driver boiler-plate and Documentation/ infrastructure. Signed-off-by: Ben Widawsky <ben.widawsky@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: David Rientjes <rientjes@google.com> (v1) Cc: Jonathan Corbet <corbet@lwn.net> Link: https://www.computeexpresslink.org/download-the-specification Link: https://lore.kernel.org/r/20210217040958.1354670-2-ben.widawsky@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2021-02-15docs: gpio: intro: Improve HTML formattingJonathan Neuschäfer1-4/+4
Currently the HTML output for Documentation/driver-api/gpio/intro.rst doesn't look right. The lines that start with LOW or HIGH are formatted in bold, while the next line after each is not bold. With this patch, the HTML looks better. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15docs: gpio: Fix formatting in description of gpiod_*_array_* functionsJonathan Neuschäfer1-2/+3
The gpiod_*_array_* functions take four arguments, not three. Additionally, the formatting of the "value_bitmap" line results in misformatted HTML, so fix that. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-06media: Remove the legacy v4l2-clk APIEzequiel Garcia2-32/+0
The V4L2 temporary clock helper API, was introduced in late 2012 and, as mentioned in the documentation, meant to be replaced by the generic clock API, once the generic clock framework became available on all relevant architectures. The generic clock API is a well-established API (since a few years now). The last few media capture drivers and sensors using v4l2-clk have been converted to the generic clock framework. We can now remove the v4l2-clk API. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Acked-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-02-06media: Clarify v4l2-async subdevice addition APIEzequiel Garcia1-9/+39
Now that most users of v4l2_async_notifier_add_subdev have been converted, let's fix the documentation so it's more clear how the v4l2-async API should be used. Document functions that drivers should use, and their purpose. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-02-04docs: thermal: fix spelling mistakesFlavio Suligoi1-3/+3
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20210129132035.16967-1-f.suligoi@asem.it Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-29misc: pti: Remove a leftover in documentationAndy Shevchenko1-1/+0
Driver is gone, so is the documentation. Remove a leftover in documentation. Fixes: 8ba59e9dee31 ("misc: pti: Remove driver for deprecated platform") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210129112729.65363-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-27media: hdmi: cec: replace broken link to HDMI specsivan tkachenko1-1/+1
Current link died, according to Wayback Machine, back in 2017. And the website is completely down since 2019. Moreover, there was a custom cover on that PDF, i.e. it was modified. According to HDMI licence agreement (LA), HDMI specification and technical information are supposed to be hosted on www.hdmi.org exclusively, and not redistributed by third-parties. Sure, there are still many more or less reliable "mirrors" out there with a direct download straight from a search engine's page. However, for example, from FPGA4fun[1] website it was removed "per HDMI LA request". Unfortunately, the official download page is protected by email CAPTCHA, but that seems to be the only legit way to obtain a copy. [1] https://www.fpga4fun.com/HDMI.html Signed-off-by: ivan tkachenko <me@ratijas.tk> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-27misc: pti: Remove driver for deprecated platformAndy Shevchenko1-108/+0
Intel Moorestown and Medfield are quite old Intel Atom based 32-bit platforms, which were in limited use in some Android phones, tablets and consumer electronics more than eight years ago. There are no bugs or problems ever reported outside from Intel for breaking any of that platforms for years. It seems no real users exists who run more or less fresh kernel on it. The commit 05f4434bc130 ("ASoC: Intel: remove mfld_machine") also in align with this theory. Due to above and to reduce a burden of supporting outdated drivers we remove the support of outdated platforms completely. Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210122114358.39299-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-26media: Documentation: media: Fix recently introduced build warning in subdev ↵Sakari Ailus1-1/+1
docs A reference to the sub-device pad ops was not follwed by a whitespace, resulting in a warning during documentation build. Fix it. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 25c8d9a7689e ("media: Documentation: v4l: Document that link_validate op is valid for sink only") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-22devlink: Extend devlink port documentation for subfunctionsParav Pandit1-0/+2
Add devlink port documentation for subfunction management. Signed-off-by: Parav Pandit <parav@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-01-19thermal/core: Remove the 'forced_passive' optionDaniel Lezcano1-13/+0
The code was reorganized in 2012 with the commit 0c01ebbfd3caf1. The main change is a loop on the trip points array and a unconditional call to the throttle() ops of the governors for each of them even if the trip temperature is not reached yet. With this change, the 'forced_passive' is no longer checked in the thermal_zone_device_update() function but in the step wise governor's throttle() callback. As the force_passive does no belong to the trip point array, the thermal_zone_device_update() can not compare with the specified passive temperature, thus does not detect the passive limit has been crossed. Consequently, throttle() is never called and the 'forced_passive' branch is unreached. In addition, the default processor cooling device is not automatically bound to the thermal zone if there is not passive trip point, thus the 'forced_passive' can not operate. If there is an active trip point, then the throttle function will be called to mitigate at this temperature and the 'forced_passive' will override the mitigation of the active trip point in this case but with the default cooling device bound to the thermal zone, so usually a fan, and that is not a passive cooling effect. Given the regression exists since more than 8 years, nobody complained and at the best of my knowledge there is no bug open in https://bugzilla.kernel.org, it is reasonable to say it is unused. Remove the 'forced_passive' related code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Thara Gopinath <thara.gopinath@linaro.org> Link: https://lore.kernel.org/r/20201214233811.485669-1-daniel.lezcano@linaro.org
2021-01-12media: Documentation: Include CCS PLL calculator to CCS driver documentationSakari Ailus1-0/+13
Include existing CCS PLL calculator kerneldoc documentation to the documentation build. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-12media: Documentation: media: Document clock handling in camera sensor driversSakari Ailus1-1/+19
Document pratices of handling clocks in camera sensor drivers on both DT and ACPI. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-12media: Documentation: media: Update pixel rate formula for C-PHYSakari Ailus1-1/+3
Update the formula to calculate the pixel rate on the link for C-PHY. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-12media: Documentation: v4l: Document that link_validate op is valid for sink onlySakari Ailus1-5/+6
The link_validate pad op will only be called on sink pads. Document this. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-12media: Documentation: v4l: Remove reference to video opsSakari Ailus1-4/+0
We no longer have format related callbacks in video ops. Remove the reference to them. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-11Documentation: document dma device use for mcbJohannes Thumshirn1-0/+12
Hannes reported a problem with setting up dma transfers on a mcb device. The problem boiled down to the use of a wrong 'device' for the dma functions. Document how to setup dma transfers for a IP core on a mcb carrier. Reported-by: Hannes Duerr <Hannes.Duerr@duagon.com> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/3bdc8f76b30c2b0e2a2bfab06c2e73797ddc9384.1608305690.git.johannes.thumshirn@wdc.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-11Documentation: Replace lkml.org links with loreJoe Perches1-2/+2
Replace the lkml.org links with lore to better use a single source that's more likely to stay available long-term. Done by bash script: cvt_lkml_to_lore () { tmpfile=$(mktemp ./.cvt_links.XXXXXXX) header=$(echo $1 | sed 's@/lkml/@/lkml/headers/@') wget -qO - $header > $tmpfile if [[ $? == 0 ]] ; then link=$(grep -i '^Message-Id:' $tmpfile | head -1 | \ sed -r -e 's/^\s*Message-Id:\s*<\s*//' -e 's/\s*>\s*$//' -e 's@^@https://lore.kernel.org/r/@') # echo "testlink: $link" if [ -n "$link" ] ; then wget -qO - $link > /dev/null if [[ $? == 0 ]] ; then echo $link fi fi fi rm -f $tmpfile } git grep -P -o "\bhttps?://(?:www.)?lkml.org/lkml[\/\w]+" $@ | while read line ; do echo $line file=$(echo $line | cut -f1 -d':') link=$(echo $line | cut -f2- -d':') newlink=$(cvt_lkml_to_lore $link) if [[ -n "$newlink" ]] ; then sed -i -e "s#\b$link\b#$newlink#" $file fi done Link: https://lore.kernel.org/patchwork/patch/1265849/#1462688 Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/77cdb7f32cfb087955bfc3600b86c40bed5d4104.camel@perches.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-07platform/surface: Add Surface ACPI Notify driverMaximilian Luz2-0/+45
The Surface ACPI Notify (SAN) device provides an ACPI interface to the Surface Aggregator EC, specifically the Surface Serial Hub interface. This interface allows EC requests to be made from ACPI code and can convert a subset of EC events back to ACPI notifications. Specifically, this interface provides a GenericSerialBus operation region ACPI code can execute a request by writing the request command data and payload to this operation region and reading back the corresponding response via a write-then-read operation. Furthermore, this interface provides a _DSM method to be called when certain events from the EC have been received, essentially turning them into ACPI notifications. The driver provided in this commit essentially takes care of translating the request data written to the operation region, executing the request, waiting for it to finish, and finally writing and translating back the response (if the request has one). Furthermore, this driver takes care of enabling the events handled via ACPI _DSM calls. Lastly, this driver also exposes an interface providing discrete GPU (dGPU) power-on notifications on the Surface Book 2, which are also received via the operation region interface (but not handled by the SAN driver directly), making them accessible to other drivers (such as a dGPU hot-plug driver that may be added later on). On 5th and 6th generation Surface devices (Surface Pro 5/2017, Pro 6, Book 2, Laptop 1 and 2), the SAN interface provides full battery and thermal subsystem access, as well as other EC based functionality. On those models, battery and thermal sensor devices are implemented as standard ACPI devices of that type, however, forward ACPI calls to the corresponding Surface Aggregator EC request via the SAN interface and receive corresponding notifications (e.g. battery information change) from it. This interface is therefore required to provide said functionality on those devices. Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20201221183959.1186143-10-luzmaximilian@gmail.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-01-07platform/surface: Add Surface Aggregator user-space interfaceMaximilian Luz2-1/+98
Add a misc-device providing user-space access to the Surface Aggregator EC, mainly intended for debugging, testing, and reverse-engineering. This interface gives user-space applications the ability to send requests to the EC and receive the corresponding responses. The device-file is managed by a pseudo platform-device and corresponding driver to avoid dependence on the dedicated bus, allowing it to be loaded in a minimal configuration. A python library and scripts to access this device can be found at [1]. [1]: https://github.com/linux-surface/surface-aggregator-module/tree/master/scripts/ssam Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com> Link: https://lore.kernel.org/r/20201221183959.1186143-9-luzmaximilian@gmail.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-01-07docs: driver-api: Add Surface Aggregator subsystem documentationMaximilian Luz9-0/+1528
Add documentation for the Surface Aggregator subsystem and its client drivers, giving an overview of the subsystem, its use-cases, its internal structure and internal API, as well as its external API for writing client drivers. Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20201221183959.1186143-8-luzmaximilian@gmail.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2020-12-20Merge tag 'rtc-5.11' of ↵Linus Torvalds1-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Subsystem: - Remove nvram ABI. There was no complaints about the deprecation for the last 3 years. - Improve RTC device allocation and registration - Now available for ARCH=um Drivers: - at91rm9200: correction and sam9x60 support - ds1307: improve ACPI support - mxc: now DT only - pcf2127: watchdog support now needs the reset-source property - pcf8523: set range - rx6110: i2c support" * tag 'rtc-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (43 commits) rtc: pcf2127: only use watchdog when explicitly available dt-bindings: rtc: add reset-source property rtc: fix RTC removal rtc: s3c: Remove dead code related to periodic tick handling rtc: s3c: Disable all enable (RTC, tick) bits in the probe rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time rtc: test: remove debug message rtc: mxc{,_v2}: enable COMPILE_TEST rtc: enable RTC framework on ARCH=um rtc: pcf8523: use BIT rtc: pcf8523: set range rtc: pcf8523: switch to devm_rtc_allocate_device rtc: destroy mutex when releasing the device rtc: shrink devm_rtc_allocate_device() rtc: rework rtc_register_device() resource management rtc: nvmem: emit an error message when nvmem registration fails rtc: add devm_ prefix to rtc_nvmem_register() rtc: nvmem: remove nvram ABI Documentation: list RTC devres helpers in devres.rst rtc: omap: use devm_pinctrl_register() ...
2020-12-18Merge tag 'drm-next-2020-12-18' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-1/+1
Pull more drm updates from Daniel Vetter: "UAPI Changes: - Only enable char/agp uapi when CONFIG_DRM_LEGACY is set Cross-subsystem Changes: - vma_set_file helper to make vma->vm_file changing less brittle, acked by Andrew Core Changes: - dma-buf heaps improvements - pass full atomic modeset state to driver callbacks - shmem helpers: cached bo by default - cleanups for fbdev, fb-helpers - better docs for drm modes and SCALING_FITLER uapi - ttm: fix dma32 page pool regression Driver Changes: - multi-hop regression fixes for amdgpu, radeon, nouveau - lots of small amdgpu hw enabling fixes (display, pm, ...) - fixes for imx, mcde, meson, some panels, virtio, qxl, i915, all fairly minor - some cleanups for legacy drm/fbdev drivers" * tag 'drm-next-2020-12-18' of git://anongit.freedesktop.org/drm/drm: (117 commits) drm/qxl: don't allocate a dma_address array drm/nouveau: fix multihop when move doesn't work. drm/i915/tgl: Fix REVID macros for TGL to fetch correct stepping drm/i915: Fix mismatch between misplaced vma check and vma insert drm/i915/perf: also include Gen11 in OATAILPTR workaround Revert "drm/i915: re-order if/else ladder for hpd_irq_setup" drm/amdgpu/disply: fix documentation warnings in display manager drm/amdgpu: print mmhub client name for dimgrey_cavefish drm/amdgpu: set mode1 reset as default for dimgrey_cavefish drm/amd/display: Add get_dig_frontend implementation for DCEx drm/radeon: remove h from printk format specifier drm/amdgpu: remove h from printk format specifier drm/amdgpu: Fix spelling mistake "Heterogenous" -> "Heterogeneous" drm/amdgpu: fix regression in vbios reservation handling on headless drm/amdgpu/SRIOV: Extend VF reset request wait period drm/amdkfd: correct amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu log. drm/amd/display: Adding prototype for dccg21_update_dpp_dto() drm/amdgpu: print what method we are using for runtime pm drm/amdgpu: simplify logic in atpx resume handling drm/amdgpu: no need to call pci_ignore_hotplug for _PR3 ...
2020-12-17Merge tag 'gpio-v5.11-1' of ↵Linus Torvalds2-31/+54
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of the GPIO changes for the v5.11 kernel cycle: Core changes: - Retired the old set-up function for GPIO IRQ chips. All chips now use the template struct gpio_irq_chip and pass that to the core to be set up alongside the gpio_chip. We can finally get rid of the old cruft. - Some refactoring and clean up of the core code. - Support edge event timestamps to be stamped using REALTIME (wall clock) timestamps. We have found solid use cases for this, so we support it. New drivers: - MStar MSC313 GPIO driver. - HiSilicon GPIO driver. Driver improvements: - The PCA953x driver now also supports the NXP PCAL9554B/C chips. - The mockup driver can now be probed from the device tree which is pretty useful for virtual prototyping of devices. - The Rcar driver now supports .get_multiple() - The MXC driver dropped some legacy and became a pure device tree client. - The Exar driver was moved over to the IDA interface for enumerating, and also switched over to using regmap for register access" * tag 'gpio-v5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (87 commits) MAINTAINERS: Remove reference to non-existing file gpio: hisi: Do not require ACPI for COMPILE_TEST MAINTAINERS: Add maintainer for HiSilicon GPIO driver gpio: gpio-hisi: Add HiSilicon GPIO support gpio: cs5535: Simplify the return expression of cs5535_gpio_probe() gpiolib: irq hooks: fix recursion in gpiochip_irq_unmask dt-bindings: mt7621-gpio: convert bindings to YAML format gpiolib: cdev: Flag invalid GPIOs as used gpio: put virtual gpio device into their own submenu drivers: gpio: amd8111: use SPDX-License-Identifier drivers: gpio: amd8111: prefer dev_err()/dev_info() over raw printk drivers: gpio: bt8xx: prefer dev_err()/dev_warn() over of raw printk gpio: Add TODO item for debugfs interface gpio: just plain warning when nonexisting gpio requested tools: gpio: add option to report wall-clock time to gpio-event-mon tools: gpio: add support for reporting realtime event clock to lsgpio gpiolib: cdev: allow edge event timestamps to be configured as REALTIME gpio: msc313: MStar MSC313 GPIO driver dt-bindings: gpio: Binding for MStar MSC313 GPIO controller dt-bindings: gpio: Add a binding header for the MSC313 GPIO driver ...
2020-12-17Merge tag 'net-5.11-rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Current release - always broken: - net/smc: fix access to parent of an ib device - devlink: use _BITUL() macro instead of BIT() in the UAPI header - handful of mptcp fixes Previous release - regressions: - intel: AF_XDP: clear the status bits for the next_to_use descriptor - dpaa2-eth: fix the size of the mapped SGT buffer Previous release - always broken: - mptcp: fix security context on server socket - ethtool: fix string set id check - ethtool: fix error paths in ethnl_set_channels() - lan743x: fix rx_napi_poll/interrupt ping-pong - qca: ar9331: fix sleeping function called from invalid context bug" * tag 'net-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (32 commits) net/sched: sch_taprio: reset child qdiscs before freeing them nfp: move indirect block cleanup to flower app stop callback octeontx2-af: Fix undetected unmap PF error check net: nixge: fix spelling mistake in Kconfig: "Instuments" -> "Instruments" qlcnic: Fix error code in probe mptcp: fix pending data accounting mptcp: push pending frames when subflow has free space mptcp: properly annotate nested lock mptcp: fix security context on server socket net/mlx5: Fix compilation warning for 32-bit platform mptcp: clear use_ack and use_map when dropping other suboptions devlink: use _BITUL() macro instead of BIT() in the UAPI header net: korina: fix return value net/smc: fix access to parent of an ib device ethtool: fix error paths in ethnl_set_channels() nfc: s3fwrn5: Remove unused NCI prop commands nfc: s3fwrn5: Remove the delay for NFC sleep phy: fix kdoc warning tipc: do sanity check payload of a netlink message use __netdev_notify_peers in hyperv ...
2020-12-17Merge tag 'dmaengine-5.11-rc1' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine updates from Vinod Koul: "The last dmaengine updates for this year :) This contains couple of new drivers, new device support and updates to bunch of drivers. New drivers/devices: - Qualcomm ADM driver - Qualcomm GPI driver - Allwinner A100 DMA support - Microchip Sama7g5 support - Mediatek MT8516 apdma Updates: - more updates to idxd driver and support for IAX config - runtime PM support for dw driver - TI drivers" * tag 'dmaengine-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (75 commits) soc: ti: k3-ringacc: Use correct error casting in k3_ringacc_dmarings_init dmaengine: ti: k3-udma-glue: Add support for K3 PKTDMA dmaengine: ti: k3-udma: Initial support for K3 PKTDMA dmaengine: ti: k3-udma: Add support for BCDMA channel TPL handling dmaengine: ti: k3-udma: Initial support for K3 BCDMA soc: ti: k3-ringacc: add AM64 DMA rings support. dmaengine: ti: Add support for k3 event routers dmaengine: ti: k3-psil: Add initial map for AM64 dmaengine: ti: k3-psil: Extend psil_endpoint_config for K3 PKTDMA dt-bindings: dma: ti: Add document for K3 PKTDMA dt-bindings: dma: ti: Add document for K3 BCDMA dmaengine: dmatest: Use dmaengine_get_dma_device dmaengine: doc: client: Update for dmaengine_get_dma_device() usage dmaengine: Add support for per channel coherency handling dmaengine: of-dma: Add support for optional router configuration callback dmaengine: ti: k3-udma-glue: Configure the dma_dev for rings dmaengine: ti: k3-udma-glue: Get the ringacc from udma_dev dmaengine: ti: k3-udma-glue: Add function to get device pointer for DMA API dmaengine: ti: k3-udma: Add support for second resource range from sysfw dmaengine: ti: k3-udma: Wait for peer teardown completion if supported ...
2020-12-16Merge tag 'mtd/for-5.11' of ↵Linus Torvalds2-4/+1
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull MTD updates from Miquel Raynal: "MTD core: - Fix refcounting for unpartitioned MTDs - Fix misspelled function parameter 'section' - Remove unneeded break - cmdline parser: Fix parsing of part-names with colons - mtdpart: Fix misdocumented function parameter 'mtd' MTD devices: - phram: - Allow the user to set the erase page size - File headers are not good candidates for kernel-doc - physmap-bt1-rom: Fix __iomem addrspace removal warning - plat-ram: correctly free memory on error path in platram_probe() - powernv_flash: Add function names to headers and fix 'dev' - docg3: Fix kernel-doc 'bad line' and 'excessive doc' issues UBI cleanup fixes: - gluebi: Fix misnamed function parameter documentation - wl: Fix a couple of kernel-doc issues - eba: Fix a couple of misdocumentation issues - kapi: Correct documentation for 'ubi_leb_read_sg's 'sgl' parameter - Document 'ubi_num' in struct mtd_dev_param Generic NAND core ECC management: - Add an I/O request tweaking mechanism - Entire rework of the software BCH ECC driver, creation of a real ECC engine, getting rid of raw NAND structures, migration to more generic prototypes, misc fixes and style cleanup. Moved now to the Generic NAND layer. - Entire rework of the software Hamming ECC driver, creation of a real ECC engine, getting rid of raw NAND structures, misc renames, comment updates, cleanup, and style fixes. Moved now to the generic NAND layer. - Necessary plumbing at the NAND level to retrieve generic NAND ECC engines (softwares and on-die). - Update of the bindings. Raw NAND core: - Geting rid of the chip->ecc.priv entry. - Fix miscellaneous typos in kernel-doc Raw NAND controller drivers: - Arasan: Document 'anfc_op's 'buf' member - AU1550: Ensure the presence of the right includes - Brcmnand: Demote non-conformant kernel-doc headers - Cafe: Remove superfluous param doc and add another - Davinci: Do not use extra dereferencing - Diskonchip: Marking unused variables as __always_unused - GPMI: - Fix the driver only sense CS0 R/B issue - Fix the random DMA timeout issue - Use a single line for of_device_id - Use of_device_get_match_data() - Fix reference count leak in gpmi ops - Cleanup makefile - Fix binding matching of clocks on different SoCs - Ingenic: remove redundant get_device() in ingenic_ecc_get() - Intel LGM: New NAND controller driver - Marvell: Drop useless line - Meson: - Fix a resource leak in init - Fix meson_nfc_dma_buffer_release() arguments - mxc: - Use device_get_match_data() - Use a single line for of_device_id - Remove platform data support - Omap: - Fix a bunch of kernel-doc misdemeanours - Finish ELM half populated function header, demote empty ones - s3c2410: Add documentation for 2 missing struct members - Sunxi: Document 'sunxi_nfc's 'caps' member - Qcom: - Add support for SDX55 - Support for IPQ6018 QPIC NAND controller - Fix DMA sync on FLASH_STATUS register read - Rockchip: New NAND controller driver for RK3308, RK2928 and others - Sunxi: Add MDMA support ONENAND: - bbt: Fix expected kernel-doc formatting - Fix some kernel-doc misdemeanours - Fix expected kernel-doc formatting - Use mtd->oops_panic_write as condition SPI-NAND core: - Creation of a SPI-NAND on-die ECC engine - Move ECC related definitions earlier in the driver - Fix typo in comment - Fill a default ECC provider/algorithm - Remove outdated comment - Fix OOB read - Allow the case where there is no ECC engine - Use the external ECC engine logic SPI-NAND chip drivers: - Micron: - Add support for MT29F2G01AAAED - Use more specific names - Macronix: - Add support for MX35LFxG24AD - Add support for MX35LFxGE4AD - Toshiba: Demote non-conformant kernel-doc header SPI-NOR core: - Initial support for stateful Octal DTR mode using volatile settings - Preliminary support for JEDEC 251 (xSPI) and JEDEC 216D standards - Support for Cypress Semper flash - Support to specify ECC block size of SPI NOR flashes - Fixes to avoid clearing of non-volatile Block Protection bits at probe - hisi-sfc: Demote non-conformant kernel-doc" * tag 'mtd/for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (120 commits) mtd: spinand: macronix: Add support for MX35LFxG24AD mtd: rawnand: rockchip: NFC driver for RK3308, RK2928 and others dt-bindings: mtd: Describe Rockchip RK3xxx NAND flash controller mtd: rawnand: gpmi: Use a single line for of_device_id mtd: rawnand: gpmi: Fix the random DMA timeout issue mtd: rawnand: gpmi: Fix the driver only sense CS0 R/B issue mtd: rawnand: qcom: Add NAND controller support for SDX55 dt-bindings: qcom_nandc: Add SDX55 QPIC NAND documentation mtd: rawnand: mxc: Use a single line for of_device_id mtd: rawnand: mxc: Use device_get_match_data() mtd: rawnand: meson: Fix a resource leak in init mtd: rawnand: gpmi: Use of_device_get_match_data() mtd: rawnand: Add NAND controller support on Intel LGM SoC dt-bindings: mtd: Add Nand Flash Controller support for Intel LGM SoC mtd: spinand: micron: Add support for MT29F2G01AAAED mtd: spinand: micron: Use more specific names mtd: rawnand: gpmi: fix reference count leak in gpmi ops dt-bindings: mtd: gpmi-nand: Fix matching of clocks on different SoCs mtd: spinand: macronix: Add support for MX35LFxGE4AD mtd: plat-ram: correctly free memory on error path in platram_probe() ...
2020-12-16net/connector: Add const qualifier to cb_idGeoff Levand1-1/+1
The connector driver never modifies any cb_id passed to it, so add a const qualifier to those arguments so callers can declare their struct cb_id as a constant object. Fixes build warnings like these when passing a constant struct cb_id: warning: passing argument 1 of ‘cn_add_callback’ discards ‘const’ qualifier from pointer target Signed-off-by: Geoff Levand <geoff@infradead.org> Link: https://lore.kernel.org/r/a9e49c9e-67fa-16e7-0a6b-72f6bd30c58a@infradead.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-15Merge tag 'pm-5.11-rc1' of ↵Linus Torvalds1-1/+11
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These update cpufreq (core and drivers), cpuidle (polling state implementation and the PSCI driver), the OPP (operating performance points) framework, devfreq (core and drivers), the power capping RAPL (Running Average Power Limit) driver, the Energy Model support, the generic power domains (genpd) framework, the ACPI device power management, the core system-wide suspend code and power management utilities. Specifics: - Use local_clock() instead of jiffies in the cpufreq statistics to improve accuracy (Viresh Kumar). - Fix up OPP usage in the cpufreq-dt and qcom-cpufreq-nvmem cpufreq drivers (Viresh Kumar). - Clean up the cpufreq core, the intel_pstate driver and the schedutil cpufreq governor (Rafael Wysocki). - Fix up error code paths in the sti-cpufreq and mediatek cpufreq drivers (Yangtao Li, Qinglang Miao). - Fix cpufreq_online() to return error codes instead of success (0) in all cases when it fails (Wang ShaoBo). - Add mt8167 support to the mediatek cpufreq driver and blacklist mt8516 in the cpufreq-dt-platdev driver (Fabien Parent). - Modify the tegra194 cpufreq driver to always return values from the frequency table as the current frequency and clean up that driver (Sumit Gupta, Jon Hunter). - Modify the arm_scmi cpufreq driver to allow it to discover the power scale present in the performance protocol and provide this information to the Energy Model (Lukasz Luba). - Add missing MODULE_DEVICE_TABLE to several cpufreq drivers (Pali Rohár). - Clean up the CPPC cpufreq driver (Ionela Voinescu). - Fix NVMEM_IMX_OCOTP dependency in the imx cpufreq driver (Arnd Bergmann). - Rework the poling interval selection for the polling state in cpuidle (Mel Gorman). - Enable suspend-to-idle for PSCI OSI mode in the PSCI cpuidle driver (Ulf Hansson). - Modify the OPP framework to support empty (node-less) OPP tables in DT for passing dependency information (Nicola Mazzucato). - Fix potential lockdep issue in the OPP core and clean up the OPP core (Viresh Kumar). - Modify dev_pm_opp_put_regulators() to accept a NULL argument and update its users accordingly (Viresh Kumar). - Add frequency changes tracepoint to devfreq (Matthias Kaehlcke). - Add support for governor feature flags to devfreq, make devfreq sysfs file permissions depend on the governor and clean up the devfreq core (Chanwoo Choi). - Clean up the tegra20 devfreq driver and deprecate it to allow another driver based on EMC_STAT to be used instead of it (Dmitry Osipenko). - Add interconnect support to the tegra30 devfreq driver, allow it to take the interconnect and OPP information from DT and clean it up (Dmitry Osipenko). - Add interconnect support to the exynos-bus devfreq driver along with interconnect properties documentation (Sylwester Nawrocki). - Add suport for AMD Fam17h and Fam19h processors to the RAPL power capping driver (Victor Ding, Kim Phillips). - Fix handling of overly long constraint names in the powercap framework (Lukasz Luba). - Fix the wakeup configuration handling for bridges in the ACPI device power management core (Rafael Wysocki). - Add support for using an abstract scale for power units in the Energy Model (EM) and document it (Lukasz Luba). - Add em_cpu_energy() micro-optimization to the EM (Pavankumar Kondeti). - Modify the generic power domains (genpd) framwework to support suspend-to-idle (Ulf Hansson). - Fix creation of debugfs nodes in genpd (Thierry Strudel). - Clean up genpd (Lina Iyer). - Clean up the core system-wide suspend code and make it print driver flags for devices with debug enabled (Alex Shi, Patrice Chotard, Chen Yu). - Modify the ACPI system reboot code to make it prepare for system power off to avoid confusing the platform firmware (Kai-Heng Feng). - Update the pm-graph (multiple changes, mostly usability-related) and cpupower (online and offline CPU information support) PM utilities (Todd Brandt, Brahadambal Srinivasan)" * tag 'pm-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits) cpufreq: Fix cpufreq_online() return value on errors cpufreq: Fix up several kerneldoc comments cpufreq: stats: Use local_clock() instead of jiffies cpufreq: schedutil: Simplify sugov_update_next_freq() cpufreq: intel_pstate: Simplify intel_cpufreq_update_pstate() PM: domains: create debugfs nodes when adding power domains opp: of: Allow empty opp-table with opp-shared dt-bindings: opp: Allow empty OPP tables media: venus: dev_pm_opp_put_*() accepts NULL argument drm/panfrost: dev_pm_opp_put_*() accepts NULL argument drm/lima: dev_pm_opp_put_*() accepts NULL argument PM / devfreq: exynos: dev_pm_opp_put_*() accepts NULL argument cpufreq: qcom-cpufreq-nvmem: dev_pm_opp_put_*() accepts NULL argument cpufreq: dt: dev_pm_opp_put_regulators() accepts NULL argument opp: Allow dev_pm_opp_put_*() APIs to accept NULL opp_table opp: Don't create an OPP table from dev_pm_opp_get_opp_table() cpufreq: dt: Don't (ab)use dev_pm_opp_get_opp_table() to create OPP table opp: Reduce the size of critical section in _opp_kref_release() PM / EM: Micro optimization in em_cpu_energy cpufreq: arm_scmi: Discover the power scale in performance protocol ...
2020-12-15Merge tag 'thermal-v5.11-rc1' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal updates from Daniel Lezcano: - Add upper and lower limits clamps for the cooling device state in the power allocator governor (Michael Kao) - Add upper and lower limits support for the power allocator governor (Lukasz Luba) - Optimize conditions testing for the trip points (Bernard Zhao) - Replace spin_lock_irqsave by spin_lock in hard IRQ on the rcar driver (Tian Tao) - Add MT8516 dt-bindings and device reset optional support (Fabien Parent) - Add a quiescent period to cool down the PCH when entering S0iX (Sumeet Pawnikar) - Use bitmap API instead of re-inventing the wheel on sun8i (Yangtao Li) - Remove useless NULL check in the hwmon driver (Bernard Zhao) - Update the current state in the cpufreq cooling device only if the frequency change is effective (Zhuguangqing) - Improve the schema validation for the rcar DT bindings (Geert Uytterhoeven) - Fix the user time unit in the documentation (Viresh Kumar) - Add PCI ids for Lewisburg PCH (Andres Freund) - Add hwmon support on amlogic (Martin Blumenstingl) - Fix build failure for PCH entering on in S0iX (Randy Dunlap) - Improve the k_* coefficient for the power allocator governor (Lukasz Luba) - Fix missing const on a sysfs attribute (Rikard Falkeborn) - Remove broken interrupt support on rcar to be replaced by a new one (Niklas Söderlund) - Improve the error code handling at init time on imx8mm (Fabio Estevam) - Compute interval validity once instead at each temperature reading iteration on acerhdf (Daniel Lezcano) - Add r8a779a0 support (Niklas Söderlund) - Add PCI ids for AlderLake PCH and mmio refactoring (Srinivas Pandruvada) - Add RFIM and mailbox support on int340x (Srinivas Pandruvada) - Use macro for temperature calculation on PCH (Sumeet Pawnikar) - Simplify return conditions at probe time on Broadcom (Zheng Yongjun) - Fix workload name on PCH (Srinivas Pandruvada) - Migrate the devfreq cooling device code to the energy model API (Lukasz Luba) - Emit a warning if the thermal_zone_device_update is called without the .get_temp() ops (Daniel Lezcano) - Add critical and hot ops for the thermal zone (Daniel Lezcano) - Remove notification usage when critical is reached on rcar (Daniel Lezcano) - Fix devfreq build when ENERGY_MODEL is not set (Lukasz Luba) * tag 'thermal-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (45 commits) thermal/drivers/devfreq_cooling: Fix the build when !ENERGY_MODEL thermal/drivers/rcar: Remove notification usage thermal/core: Add critical and hot ops thermal/core: Emit a warning if the thermal zone is updated without ops drm/panfrost: Register devfreq cooling and attempt to add Energy Model thermal: devfreq_cooling: remove old power model and use EM thermal: devfreq_cooling: add new registration functions with Energy Model thermal: devfreq_cooling: use a copy of device status thermal: devfreq_cooling: change tracing function and arguments thermal: int340x: processor_thermal: Correct workload type name thermal: broadcom: simplify the return expression of bcm2711_thermal_probe() thermal: intel: pch: use macro for temperature calculation thermal: int340x: processor_thermal: Add mailbox driver thermal: int340x: processor_thermal: Add RFIM driver thermal: int340x: processor_thermal: Add AlderLake PCI device id thermal: int340x: processor_thermal: Refactor MMIO interface thermal: rcar_gen3_thermal: Add r8a779a0 support dt-bindings: thermal: rcar-gen3-thermal: Add r8a779a0 support platform/x86/drivers/acerhdf: Check the interval value when it is set platform/x86/drivers/acerhdf: Use module_param_cb to set/get polling interval ...
2020-12-15Merge branch 'for-linus' of ↵Linus Torvalds1-9/+0
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - support for inhibiting input devices at request from userspace. If a device implements open/close methods, it can also put device into low power state. This is needed, for example, to disable keyboard and touchpad on convertibles when they are transitioned into tablet mode - now that ordinary input devices can be configured for polling mode, dedicated input polling device implementation has been removed - GTCO tablet driver has been removed, as it used problematic custom HID parser, devices are EOL, and there is no interest from the manufacturer - a new driver for Dialog DA7280 haptic chips has been introduced - a new driver for power button on Dell Wyse 3020 - support for eKTF2132 in ektf2127 driver - support for SC2721 and SC2730 in sc27xx-vibra driver - enhancements for Atmel touchscreens, AD7846 touchscreens, Elan touchpads, ADP5589, ST1232 touchscreen, TM2 touchkey drivers - fixes and cleanups to allow clean builds with W=1 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (86 commits) Input: da7280 - fix spelling mistake "sequemce" -> "sequence" Input: cyapa_gen6 - fix out-of-bounds stack access Input: sc27xx - add support for sc2730 and sc2721 dt-bindings: input: Add compatible string for SC2721 and SC2730 dt-bindings: input: Convert sc27xx-vibra.txt to json-schema Input: stmpe - add axis inversion and swapping capability Input: adp5589-keys - do not explicitly control IRQ for wakeup Input: adp5589-keys - do not unconditionally configure as wakeup source Input: ipx4xx-beeper - convert comma to semicolon Input: parkbd - convert comma to semicolon Input: new da7280 haptic driver dt-bindings: input: Add document bindings for DA7280 MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms Input: elantech - fix protocol errors for some trackpoints in SMBus mode Input: elan_i2c - add new trackpoint report type 0x5F Input: elants - document some registers and values Input: atmel_mxt_ts - simplify the return expression of mxt_send_bootloader_cmd() Input: imx_keypad - add COMPILE_TEST support Input: applespi - use new structure for SPI transfer delays Input: synaptics-rmi4 - use new structure for SPI transfer delays ...
2020-12-15Merge tag 'net-next-5.11' of ↵Linus Torvalds2-0/+235
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - support "prefer busy polling" NAPI operation mode, where we defer softirq for some time expecting applications to periodically busy poll - AF_XDP: improve efficiency by more batching and hindering the adjacency cache prefetcher - af_packet: make packet_fanout.arr size configurable up to 64K - tcp: optimize TCP zero copy receive in presence of partial or unaligned reads making zero copy a performance win for much smaller messages - XDP: add bulk APIs for returning / freeing frames - sched: support fragmenting IP packets as they come out of conntrack - net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs BPF: - BPF switch from crude rlimit-based to memcg-based memory accounting - BPF type format information for kernel modules and related tracing enhancements - BPF implement task local storage for BPF LSM - allow the FENTRY/FEXIT/RAW_TP tracing programs to use bpf_sk_storage Protocols: - mptcp: improve multiple xmit streams support, memory accounting and many smaller improvements - TLS: support CHACHA20-POLY1305 cipher - seg6: add support for SRv6 End.DT4/DT6 behavior - sctp: Implement RFC 6951: UDP Encapsulation of SCTP - ppp_generic: add ability to bridge channels directly - bridge: Connectivity Fault Management (CFM) support as is defined in IEEE 802.1Q section 12.14. Drivers: - mlx5: make use of the new auxiliary bus to organize the driver internals - mlx5: more accurate port TX timestamping support - mlxsw: - improve the efficiency of offloaded next hop updates by using the new nexthop object API - support blackhole nexthops - support IEEE 802.1ad (Q-in-Q) bridging - rtw88: major bluetooth co-existance improvements - iwlwifi: support new 6 GHz frequency band - ath11k: Fast Initial Link Setup (FILS) - mt7915: dual band concurrent (DBDC) support - net: ipa: add basic support for IPA v4.5 Refactor: - a few pieces of in_interrupt() cleanup work from Sebastian Andrzej Siewior - phy: add support for shared interrupts; get rid of multiple driver APIs and have the drivers write a full IRQ handler, slight growth of driver code should be compensated by the simpler API which also allows shared IRQs - add common code for handling netdev per-cpu counters - move TX packet re-allocation from Ethernet switch tag drivers to a central place - improve efficiency and rename nla_strlcpy - number of W=1 warning cleanups as we now catch those in a patchwork build bot Old code removal: - wan: delete the DLCI / SDLA drivers - wimax: move to staging - wifi: remove old WDS wifi bridging support" * tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits) net: hns3: fix expression that is currently always true net: fix proc_fs init handling in af_packet and tls nfc: pn533: convert comma to semicolon af_vsock: Assign the vsock transport considering the vsock address flags af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path vsock_addr: Check for supported flag values vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag vm_sockets: Add flags field in the vsock address data structure net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context nfc: s3fwrn5: Release the nfc firmware net: vxget: clean up sparse warnings mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3 mlxsw: spectrum_router_xm: Introduce basic XM cache flushing mlxsw: reg: Add Router LPM Cache Enable Register mlxsw: reg: Add Router LPM Cache ML Delete Register mlxsw: spectrum_router_xm: Implement L-value tracking for M-index mlxsw: reg: Add XM Router M Table Register ...
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