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2020-05-19soundwire: bus: rename sdw_bus_master_add/delete, add argumentsPierre-Louis Bossart1-3/+4
In preparation for future extensions, rename functions to use sdw_bus_master prefix and add a parent and fwnode argument to sdw_bus_master_add to help with device registration in follow-up patches. No functionality change, just renames and additional arguments. The Intel code is currently unused, the two additional arguments are only needed for compilation. Signed-off-by: Pierre-Louis Bossart <[email protected]> Signed-off-by: Bard Liao <[email protected]> Acked-by: Jaroslav Kysela <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Vinod Koul <[email protected]>
2020-05-18gpiolib: Add support for GPIO lookup by line nameGeert Uytterhoeven1-5/+10
Currently a GPIO lookup table can only refer to a specific GPIO by a tuple, consisting of a GPIO controller label and a GPIO offset inside the controller. However, a GPIO may also carry a line name, defined by DT or ACPI. If present, the line name is the most use-centric way to refer to a GPIO. Hence add support for looking up GPIOs by line name. Note that there is no guarantee that GPIO line names are globally unique, so this will use the first match found. Implement this by reusing the existing gpiod_lookup infrastructure. Rename gpiod_lookup.chip_label to gpiod_lookup.key, to make it clear that this field can have two meanings, and update the kerneldoc and GPIO_LOOKUP*() macros. Signed-off-by: Geert Uytterhoeven <[email protected]> Tested-by: Eugeniu Rosca <[email protected]> Reviewed-by: Ulrich Hecht <[email protected]> Reviewed-by: Eugeniu Rosca <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Linus Walleij <[email protected]>
2020-05-15docs: move IPMI.txt to the driver API bookMauro Carvalho Chehab2-0/+747
The IPMI is under drivers/char. This doc describes the kAPI part of the IPMI (mainly). So, move it to the driver-api directory and add it to the corresponding index.rst file. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Link: https://lore.kernel.org/r/ae4edbc6753dc522cb93de36800978e3b58e0cfb.1588345503.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <[email protected]>
2020-05-12media: Documentation: media: Document read-only subdeviceJacopo Mondi1-0/+44
Document a new kAPI function to register subdev device nodes in read only mode and for each affected ioctl report how access is restricted. Acked-by: Sakari Ailus <[email protected]> Signed-off-by: Jacopo Mondi <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-05-12media: Documentation: media: Update sub-device API introJacopo Mondi1-2/+7
Update the V4L2 sub-device userspace API introduction to provide more details on why complex devices might want to register devnodes for the connected subdevices. Acked-by: Sakari Ailus <[email protected]> Suggested-by: Laurent Pinchart <[email protected]> Signed-off-by: Jacopo Mondi <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-05-05doc: thermal: add cpu-idle-cooling to index treeWang Wenhu2-0/+4
Add cpu-idle-cooling.rst to the index list for user reference through self-compiled htmldocs or online documentation tree of kernel. Like: https://www.kernel.org/doc/html/latest/driver-api/thermal/index.html Signed-off-by: Wang Wenhu <[email protected]> Cc: Daniel Lezcano <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-05-05Documentation: SoundWire: clarify TDM mode supportPierre-Louis Bossart1-3/+86
The current description of stream topologies does not explicitly mention 'mirror' topologies used for audio amplifiers, where all amplifiers see the same data and generate a different output based on configuration or dynamic information. Add examples and notes to explain how channels can be transmitted and mapped. Signed-off-by: Pierre-Louis Bossart <[email protected]> Signed-off-by: Bard Liao <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Vinod Koul <[email protected]>
2020-04-28doc: nvdimm: remove reference to non-existent CONFIG_NFIT_TESTMichal Suchanek1-2/+2
The test driver is in tools/testing/nvdimm and cannot be selected by a config option. Signed-off-by: Michal Suchanek <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-04-26PM: sleep: Helpful edits for devices.rst documentationAlan Stern1-42/+52
Here are some minor edits of the devices.rst documentation file, intended to improve the clarity and add a couple of missing details. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2020-04-24Documentation: PM: sleep: Update driver flags documentationRafael J. Wysocki1-47/+92
Update the documentation of the driver flags for system-wide power management to reflect the current code flows and be more consistent. Signed-off-by: Rafael J. Wysocki <[email protected]>
2020-04-24PM: sleep: core: Rename DPM_FLAG_LEAVE_SUSPENDEDRafael J. Wysocki1-2/+2
Rename DPM_FLAG_LEAVE_SUSPENDED to DPM_FLAG_MAY_SKIP_RESUME which matches its purpose more closely. No functional impact. Suggested-by: Alan Stern <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Acked-by: Wolfram Sang <[email protected]> # for I2C Acked-by: Alan Stern <[email protected]> Acked-by: Bjorn Helgaas <[email protected]>
2020-04-24PM: sleep: core: Rename DPM_FLAG_NEVER_SKIPRafael J. Wysocki1-3/+3
Rename DPM_FLAG_NEVER_SKIP to DPM_FLAG_NO_DIRECT_COMPLETE which matches its purpose more closely. No functional impact. Suggested-by: Alan Stern <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> # for PCI parts Acked-by: Jeff Kirsher <[email protected]> Acked-by: Alan Stern <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Acked-by: Alex Deucher <[email protected]>
2020-04-23Add documentation on meaning of -EPROBE_DEFERGrant Likely1-5/+27
Add a bit of documentation on what it means when a driver .probe() hook returns the -EPROBE_DEFER error code, including the limitation that -EPROBE_DEFER should be returned as early as possible, before the driver starts to register child devices. Also: minor markup fixes in the same file Cc: Greg Kroah-Hartman <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Saravana Kannan <[email protected]> Cc: Andy Shevchenko <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: Grant Likely <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-04-23Merge tag 'iio-for-5.8a' of ↵Greg Kroah-Hartman2-10/+0
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of new IIO device support, features and cleanup for the 5.8 cycle Usual mix of new drivers, new support in old drivers and lots of minor cleanup. Yaml conversions also continue to trickle in (plenty more to go!) New device support * ad7476 - Add ad7091 support (ID only) * ad9467 - New driver for this 200/250 MSPS adi-axi-adc and SPI attached ADC. * adi-axi-adc - New driver to support ADIs generic AXI ADC IP core, used to provide high speed interfaces to ADCs (JESD204B/C or parallel interfaces). Usually paired with a device using a slow configuration interface (spi etc) Includes DT bindings and some fixes for fpga headers. * bmg160 - Add support for BMI088 (ID only) * max1241 - New driver for this ADC. * st_sensors - Add support for LIS2HH12 accelerometer * sx9310 - New driver supporting sx9310 and sx9311 proximity sensors. Yaml DT binding conversions * rockchip-saradc (including adding some missing parts) * stm32-dac * tsl2563 * vcnl4000 Features * st_lsm6dsx - Add LIS3MDL as a possible sensor hub device. * vcnl4000 - Add new concept of near level (from DT) to provide to userspace which often needs to have some calibrated concept of 'near'. Cleanups, minor fixes etc. * core - Use snprintf for functions where strings are built and there is potential for overflow. - Correct docs to indicate mlock should not be used directly by drivers. - Fix up accidental dropping of a patch to use bitmap_zalloc. - Stop allowing enabling of buffers with no channels enabled. - Drop unused 'stufftoread' from iio_buffer. - Drop scan_el_attrs form iio_buffer as unused. - Reorder sanity checks in __iio_device_register to fail earlier. - Drop all the devm_ runregister / free functions from IIO as they were never used and encourage poor design. * dma-buffer - Tidy up includes. * dma-engine-buffer - Provide dev-managed allocator. - Fix an issue with printing a size_t * cross subsystem (kxsd9, bmg160, mpu3050, bmi160, mpu6050, bmc150) - Replace some unnecessary casts of error ptrs and whilst there. use the %pe printf parameter to print them in a more useful fashion. * cross subsystem - Drop casts in calls to regmap_bulk_read as they make no sense. - Use devm_platform_ioremap_resource to reduce boilerplate. - Fix typos in Analog Devices. * counters/104-quad - Add Syed Nayyar Waris as an additional maintainer. * ad7476 - Generate CONVST signal internally rather than requiring external trigger. Add sysfs read back as can now do so. - use devm_add_action_or_reset to tidy up error and remove handling. * ad7793 - Switch to read_avail from explicit attribute. Mostly done to avoid confusing people with a - sign (without surounding spaces) that was correct but checkpatch didn't like. * adis library - Add missing newlines at end of error messages. * adis16400 - Use DEFINE_DEBUGS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTR. * adis16460 - Use DEFINE_DEBUGS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTR. * ad_sigma_delta - Move some channel definitions into individual drivers to avoid having to deal with complex options. * ak8974 - Silence an error on deffered probe. * bmp280 - Harden against IRQ before registration. - Convert to read_avail instead of opencoding the equivalent. - Explicitly mark GPIO as optional. - Cleanup casts. - Remove line breaks from strings. * htts221 - Replace direct access to platform_data with dev_get_platdata(). - Use device properties rather than device tree ones to allow ACPI probing. - Casting cleanups. * intel_mrfld_adc - Don't use unaligned accessor for aligned data. * isl29125 - Reorder buer pre and post hooks to allow for coming core rework. * ltc2983 - Remove comp to bool. * max1363 - Stop using mlock from the iio_dev directly in favour of a local lock with clearly defined scope. * max30100 - Use generic device properties to allow ACPI probe. * mpu6050 - Convert to i2c_new_client_device. - Add debugfs register access. * st_lsm6dsx - Provide means of configuring full scale on slave device if supported. - Drop include of st_sensors header to get one value. Its not otherwise used by this driver. * st-sensors - Replace direct access to platform_data with dev_get_platdata(). - Casting cleanups. - Avoid splitting strings. * st_uvis25 - Casting cleanups. * tsl2563 - Typo fix. * tsl2772 - scnprintf in a non obvious string building usecase. Note also 'fixes' a wrong calculation of remaining space that couldn't actually cause any trouble as there was lots of room. * xilinx-xadc - Fix Lars-Peter spelling his own name wrong :) + additional typos. * tag 'iio-for-5.8a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (101 commits) iio: magnetometer: ak8974: Silence deferred-probe error Documentation: ABI: document IIO in_proximity_nearlevel file iio: vcnl4000: Export near level property for proximity sensor dt-bindings: iio: light: vcnl4000: Add proximity-near-level dt-bindings: iio: Introduce common properties for iio sensors dt-bindings: iio: vcnl4000: convert bindings to YAML format iio: Fix misspellings of "Analog Devices" iio: light: isl29125: fix iio_triggered_buffer_{predisable,postenable} positions iio: adc: fsl-imx25-gcq: Use devm_platform_ioremap_resource iio: adc: at91-adc: Use devm_platform_ioremap_resource iio: adc: sun4i-gpadc-iio: Use devm_platform_ioremap_resource iio:light:ltr501: Drop unnecessary cast of parameter in regmap_bulk_read iio:magn:mmc35240: Drop unnecessary casts of val parameter in regmap_bulk* iio:imu:mpu6050: Tidy up parameters to regmap_bulk functions. iio:chemical:bme680: Tidy up parameters to regmap_bulk_read iio:chemical:atlas-sensor: Drop unnecessary explicit casts in regmap_bulk_read calls iio:accel:mxc4005: Drop unnecessary explicit casts in regmap_bulk_read calls iio: imu: st_lsm6dsx: drop huge include in sensor-hub driver iio: buffer: drop devm_iio_kfifo_free() API call iio: buffer: drop devm_iio_hw_consumer_free() API call ...
2020-04-21dma-buf: Couple of documentation typo fixesGal Pressman1-2/+2
Fix a couple of typos: "as" -> "has" and "int" -> "in". Signed-off-by: Gal Pressman <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2020-04-20dma-buf: Couple of documentation typo fixesGal Pressman1-2/+2
Fix a couple of typos: "as" -> "has" and "int" -> "in". Signed-off-by: Gal Pressman <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-04-20docs: filesystems: fix renamed referencesMauro Carvalho Chehab2-3/+3
Some filesystem references got broken by a previous patch series I submitted. Address those. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Acked-by: David Sterba <[email protected]> # fs/affs/Kconfig Link: https://lore.kernel.org/r/57318c53008dbda7f6f4a5a9e5787f4d37e8565a.1586881715.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <[email protected]>
2020-04-19iio: buffer: drop devm_iio_kfifo_free() API callAlexandru Ardelean1-1/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2020-04-19iio: inkern: drop devm_iio_channel_release{_all} API callsAlexandru Ardelean1-2/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2020-04-19iio: core: drop devm_iio_trigger_free() API callAlexandru Ardelean2-2/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2020-04-19iio: core: drop devm_iio_trigger_unregister() API callAlexandru Ardelean2-2/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2020-04-19iio: core: drop devm_iio_device_free() API callAlexandru Ardelean1-1/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. This is the last user of 'devm_iio_device_match()', so it can be removed as well in this patch. Signed-off-by: Alexandru Ardelean <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2020-04-19iio: core: drop devm_iio_triggered_buffer_cleanup() API callAlexandru Ardelean1-1/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2020-04-19iio: core: drop devm_iio_device_unregister() API callAlexandru Ardelean1-1/+0
It's unused so far, so it can be removed. Also makes sense to remove it to discourage weird uses of this call during review. Signed-off-by: Alexandru Ardelean <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2020-04-16media: media/test_drivers: rename to test-driversHans Verkuil1-2/+2
We never use _ in directory names in the media subsystem, so rename to test-drivers instead for consistency. Also update MAINTAINERS with the new path. Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-16media: Documentation/media: drop/fix vivi referencesHans Verkuil1-4/+1
The vivi.c driver has long gone, but v4l2-videobuf.rst still refers to it. Just drop that reference since it is no longer valid or relevant (videobuf is deprecated). The QUERYCAP documentation also made a reference to is, but there vivi could just be replaced by vivid, the vivi successor. Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-15media: docs: add cros-references to the other media guidesMauro Carvalho Chehab1-0/+8
In order to make easier for people to navigate between the three media guides, add cross-references between them Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-15media: docs: move copyrights to the end and update themMauro Carvalho Chehab1-10/+16
The copyright info is not the most valuable information there. Move them to the end. While here, change the copyright to cover up to this year (2020). Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-15media: docs: cleanup bttv-devel.rst fileMauro Carvalho Chehab1-30/+23
This file was converted from text at the early ReST days. We learnt a lot about how to produce a nicer result while keeping the file better readable as plain text. Change some ReST markups to make it look better, both at the output formats and as plain text file. While here, remove references for the old bt848/winutil tool, as it seems that it doesn't exist anymore. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-15media: docs: Add a master topic for the index fileMauro Carvalho Chehab1-30/+7
Right now, both V4L and Digital TV are shown as main titles. Instead, add a main title, in order to better display its output. While here, simplify the file, as we don't need to add a title for the indexes, nor we need copyright info, as everything there is GPL, as stated by the SPDX tags. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-14media: docs: fix some broken referencesMauro Carvalho Chehab1-2/+2
Some media files got moved. Update the corresponding references to the referenced files. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-14media: docs: get rid of Documentation/media/Mauro Carvalho Chehab1-0/+1
Now that everything got moved, we can get rid of the old media directory. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-14media: docs: move driver-specific info to driver-apiMauro Carvalho Chehab18-0/+5553
Those documents don't really describe the driver API. Instead, they contain development-specific information. Yet, as the main index file describes the content of it as: "how specific kernel subsystems work from the point of view of a kernel developer" It seems to be the better fit. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-14media: docs: kAPI docs: move them to driver-apiMauro Carvalho Chehab33-0/+4368
All those documents describe the media driver API. So, move them to the right place within the Kernel documentation. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2020-04-10Merge tag 'docs-5.7-2' of git://git.lwn.net/linuxLinus Torvalds2-8/+2
Pull Documentation fixes from Jonathan Corbet: "A handful of late-arriving fixes for the documentation tree" * tag 'docs-5.7-2' of git://git.lwn.net/linux: Documentation: android: binderfs: add 'stats' mount option Documentation: driver-api/usb/writing_usb_driver.rst Updates documentation links docs: driver-api: address duplicate label warning Documentation: sysrq: fix RST formatting docs: kernel-parameters.txt: Fix broken references docs: kernel-parameters.txt: Remove nompx docs: filesystems: fix typo in qnx6.rst
2020-04-07Merge tag 'thermal-v5.7-rc1' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal updates from Daniel Lezcano: - Convert tsens configuration DT binding to yaml (Rajeshwari) - Add interrupt support on the rcar sensor (Niklas Söderlund) - Add a new Spreadtrum thermal driver (Baolin Wang) - Add thermal binding for the fsl scu board, a new API to retrieve the sensor id bound to the thermal zone and i.MX system controller sensor (Anson Huang)) - Remove warning log when a deferred probe is requested on Exynos (Marek Szyprowski) - Add the thermal monitoring unit support for imx8mm with its DT bindings (Anson Huang) - Rephrase the Kconfig text for clarity (Linus Walleij) - Use the gpio descriptor for the ti-soc-thermal (Linus Walleij) - Align msg structure to 4 bytes for i.MX SC, fix the Kconfig dependency, add the __may_be unused annotation for PM functions and the COMPILE_TEST option for imx8mm (Anson Huang) - Fix a dependency on regmap in Kconfig for qoriq (Yuantian Tang) - Add DT binding and support for the rcar gen3 r8a77961 and improve the error path on the rcar init function (Niklas Söderlund) - Cleanup and improvements for the tsens Qcom sensor (Amit Kucheria) - Improve code by removing lock and caching values in the rcar thermal sensor (Niklas Söderlund) - Cleanup in the qoriq drivers and add a call to imx_thermal_unregister_legacy_cooling in the removal function (Anson Huang) - Remove redundant 'maxItems' in tsens and sprd DT bindings (Rob Herring) - Change the thermal DT bindings by making the cooling-maps optional (Yuantian Tang) - Add Tiger Lake support (Sumeet Pawnikar) - Use scnprintf() for avoiding potential buffer overflow (Takashi Iwai) - Make pkg_temp_lock a raw_spinlock_t(Clark Williams) - Fix incorrect data types by changing them to signed on i.MX SC (Anson Huang) - Replace zero-length array with flexible-array member (Gustavo A. R. Silva) - Add support for i.MX8MP in the driver and in the DT bindings (Anson Huang) - Fix return value of the cpufreq_set_cur_state() function (Willy Wolff) - Remove abusing and scary WARN_ON in the cpufreq cooling device (Daniel Lezcano) - Fix build warning of incorrect argument type reported by sparse on imx8mm (Anson Huang) - Fix stub for the devfreq cooling device (Martin Blumenstingl) - Fix cpu idle cooling documentation (Sergey Vidishev) * tag 'thermal-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (52 commits) Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycle thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=n thermal: imx8mm: Fix build warning of incorrect argument type thermal/drivers/cpufreq_cooling: Remove abusing WARN_ON thermal/drivers/cpufreq_cooling: Fix return of cpufreq_set_cur_state thermal: imx8mm: Add i.MX8MP support dt-bindings: thermal: imx8mm-thermal: Add support for i.MX8MP thermal: qcom: tsens.h: Replace zero-length array with flexible-array member thermal: imx_sc_thermal: Fix incorrect data type thermal: int340x_thermal: Use scnprintf() for avoiding potential buffer overflow thermal: int340x: processor_thermal: Add Tiger Lake support thermal/x86_pkg_temp: Make pkg_temp_lock a raw_spinlock_t dt-bindings: thermal: make cooling-maps property optional dt-bindings: thermal: qcom-tsens: Remove redundant 'maxItems' dt-bindings: thermal: sprd: Remove redundant 'maxItems' thermal: imx: Calling imx_thermal_unregister_legacy_cooling() in .remove thermal: qoriq: Sort includes alphabetically thermal: qoriq: Use devm_add_action_or_reset() to handle all cleanups thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp() thermal: rcar_thermal: Do not store ctemp in rcar_thermal_priv ...
2020-04-07Documentation: driver-api/usb/writing_usb_driver.rst Updates documentation linksJoakim Lönnegren1-5/+2
In writing_usb_driver.rst: Remove link to https://www.qbik.ch/usb/devices/ since it seems to be inactive since 2013 Update link to linux-usb mailing list archive Signed-off-by: Joakim Lönnegren <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-04-07docs: driver-api: address duplicate label warningLukas Bulwahn1-3/+0
Delete identically named subsection to fix Documentation warning: Documentation/driver-api/w1.rst:11: \ WARNING: duplicate label driver-api/w1:w1 api internal to the kernel, \ other instance in Documentation/driver-api/w1.rst Signed-off-by: Lukas Bulwahn <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-04-07Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycleSergey Vidishev1-2/+2
Signed-off-by: Sergey Vidishev <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> Link: https://lore.kernel.org/r/2374188.AZIXMmL6Zy@sergeyv-box
2020-04-04Merge tag 'gpio-v5.7-1' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO development for the v5.7 kernel cycle. Core and userspace API: - The userspace API KFIFOs have been imoproved with locks that do not block interrupts. This makes us better at getting events to userspace without blocking or disturbing new events arriving in the same time. This was reviewed by the KFIFO maintainer Stefani. This is a generic improvement which paves the road for similar improvements in other subsystems. - We provide a new ioctl() for monitoring changes in the line information, such as when multiple clients are taking lines and giving them back, possibly reconfiguring them in the process: we can now monitor that and not get stuck with stale static information. - An example tool 'gpio-watch' is provided to showcase this functionality. - Timestamps for events are switched to ktime_get_ns() which is monotonic. We previously had a 'realtime' stamp which could move forward and *backward* in time, which probably would just cause silent bugs and weird behaviour. In the long run we see two relevant timestamps: ktime_get_ns() or the timestamp sometimes provided by the GPIO hardware itself, if that exists. - Device Tree overlay support for GPIO hogs. On systems that load overlays, these overlays can now contain hogs, and will then be respected. - Handle pin control interaction with nonexisting pin ranges in the GPIO library core instead of in the individual drivers. New drivers: - New driver for the Mellanox BlueField 2 GPIO controller. Driver improvements: - Introduce the BGPIOF_NO_SET_ON_INPUT flag to the generic MMIO GPIO library and use this flag in the MT7621 driver. - Texas Instruments OMAP CPU power management improvements, such as blocking of idle on pending GPIO interrupts" * tag 'gpio-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (59 commits) Revert "gpio: eic-sprd: Use devm_platform_ioremap_resource()" pinctrl: Unconditionally assign .request()/.free() gpio: Unconditionally assign .request()/.free() gpio: export of_pinctrl_get to modules pinctrl: Define of_pinctrl_get() dummy for !PINCTRL gpio: Rename variable in core APIs gpio: Avoid using pin ranges with !PINCTRL gpiolib: Remove unused gpio_chip parameter from gpio_set_bias() gpiolib: Pass gpio_desc to gpio_set_config() gpiolib: Introduce gpiod_set_config() tools: gpio: Fix out-of-tree build regression gpio: gpiolib: fix a doc warning gpio: tegra186: Add Tegra194 pin ranges for GG.0 and GG.1 gpio: tegra186: Add support for pin ranges gpio: Support GPIO controllers without pin-ranges ARM: integrator: impd1: Use GPIO_LOOKUP() helper macro gpio: brcmstb: support gpio-line-names property tools: gpio: Fix typo in gpio-utils tools: gpio-hammer: Apply scripts/Lindent and retain good changes gpiolib: gpio_name_to_desc: factor out !name check ...
2020-04-03Merge tag 'char-misc-5.7-rc1' of ↵Linus Torvalds1-17/+44
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char/misc/other driver patches for 5.7-rc1. Lots of things in here, and it's later than expected due to some reverts to resolve some reported issues. All is now clean with no reported problems in linux-next. Included in here is: - interconnect updates - mei driver updates - uio updates - nvmem driver updates - soundwire updates - binderfs updates - coresight updates - habanalabs updates - mhi new bus type and core - extcon driver updates - some Kconfig cleanups - other small misc driver cleanups and updates As mentioned, all have been in linux-next for a while, and with the last two reverts, all is calm and good" * tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (174 commits) Revert "driver core: platform: Initialize dma_parms for platform devices" Revert "amba: Initialize dma_parms for amba devices" amba: Initialize dma_parms for amba devices driver core: platform: Initialize dma_parms for platform devices bus: mhi: core: Drop the references to mhi_dev in mhi_destroy_device() bus: mhi: core: Initialize bhie field in mhi_cntrl for RDDM capture bus: mhi: core: Add support for reading MHI info from device misc: rtsx: set correct pcr_ops for rts522A speakup: misc: Use dynamic minor numbers for speakup devices mei: me: add cedar fork device ids coresight: do not use the BIT() macro in the UAPI header Documentation: provide IBM contacts for embargoed hardware nvmem: core: remove nvmem_sysfs_get_groups() nvmem: core: use is_bin_visible for permissions nvmem: core: use device_register and device_unregister nvmem: core: add root_only member to nvmem device struct extcon: axp288: Add wakeup support extcon: Mark extcon_get_edev_name() function as exported symbol extcon: palmas: Hide error messages if gpio returns -EPROBE_DEFER dt-bindings: extcon: usbc-cros-ec: convert extcon-usbc-cros-ec.txt to yaml format ...
2020-04-02Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds1-1/+1
Pull SCSI updates from James Bottomley: "This series has a huge amount of churn because it pulls in Mauro's doc update changing all our txt files to rst ones. Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc, zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and some other minor updates. The major core change is Hannes moving functions out of the aacraid driver and into the core" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits) scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code scsi: ufs: Do not rely on prefetched data scsi: dc395x: remove dc395x_bios_param scsi: libiscsi: Fix error count for active session scsi: hpsa: correct race condition in offload enabled scsi: message: fusion: Replace zero-length array with flexible-array member scsi: qedi: Add PCI shutdown handler support scsi: qedi: Add MFW error recovery process scsi: ufs: Enable block layer runtime PM for well-known logical units scsi: ufs-qcom: Override devfreq parameters scsi: ufshcd: Let vendor override devfreq parameters scsi: ufshcd: Update the set frequency to devfreq scsi: ufs: Resume ufs host before accessing ufs device scsi: ufs-mediatek: customize the delay for enabling host scsi: ufs: make HCE polling more compact to improve initialization latency scsi: ufs: allow custom delay prior to host enabling scsi: ufs-mediatek: use common delay function scsi: ufs: introduce common and flexible delay function scsi: ufs: use an enum for host capabilities scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc() ...
2020-03-30Merge branch 'efi-core-for-linus' of ↵Linus Torvalds2-0/+12
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI updates from Ingo Molnar: "The EFI changes in this cycle are much larger than usual, for two (positive) reasons: - The GRUB project is showing signs of life again, resulting in the introduction of the generic Linux/UEFI boot protocol, instead of x86 specific hacks which are increasingly difficult to maintain. There's hope that all future extensions will now go through that boot protocol. - Preparatory work for RISC-V EFI support. The main changes are: - Boot time GDT handling changes - Simplify handling of EFI properties table on arm64 - Generic EFI stub cleanups, to improve command line handling, file I/O, memory allocation, etc. - Introduce a generic initrd loading method based on calling back into the firmware, instead of relying on the x86 EFI handover protocol or device tree. - Introduce a mixed mode boot method that does not rely on the x86 EFI handover protocol either, and could potentially be adopted by other architectures (if another one ever surfaces where one execution mode is a superset of another) - Clean up the contents of 'struct efi', and move out everything that doesn't need to be stored there. - Incorporate support for UEFI spec v2.8A changes that permit firmware implementations to return EFI_UNSUPPORTED from UEFI runtime services at OS runtime, and expose a mask of which ones are supported or unsupported via a configuration table. - Partial fix for the lack of by-VA cache maintenance in the decompressor on 32-bit ARM. - Changes to load device firmware from EFI boot service memory regions - Various documentation updates and minor code cleanups and fixes" * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits) efi/libstub/arm: Fix spurious message that an initrd was loaded efi/libstub/arm64: Avoid image_base value from efi_loaded_image partitions/efi: Fix partition name parsing in GUID partition entry efi/x86: Fix cast of image argument efi/libstub/x86: Use ULONG_MAX as upper bound for all allocations efi: Fix a mistype in comments mentioning efivar_entry_iter_begin() efi/libstub: Avoid linking libstub/lib-ksyms.o into vmlinux efi/x86: Preserve %ebx correctly in efi_set_virtual_address_map() efi/x86: Ignore the memory attributes table on i386 efi/x86: Don't relocate the kernel unless necessary efi/x86: Remove extra headroom for setup block efi/x86: Add kernel preferred address to PE header efi/x86: Decompress at start of PE image load address x86/boot/compressed/32: Save the output address instead of recalculating it efi/libstub/x86: Deal with exit() boot service returning x86/boot: Use unsigned comparison for addresses efi/x86: Avoid using code32_start efi/x86: Make efi32_pe_entry() more readable efi/x86: Respect 32-bit ABI in efi32_pe_entry() efi/x86: Annotate the LOADED_IMAGE_PROTOCOL_GUID with SYM_DATA ...
2020-03-30Merge tag 'driver-core-5.7-rc1' of ↵Linus Torvalds3-0/+110
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 changes for 5.7-rc1. Nothing huge in here, just lots of little firmware core changes and use of new apis, a libfs fix, a debugfs api change, and some driver core deferred probe rework. All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (44 commits) Revert "driver core: Set fw_devlink to "permissive" behavior by default" driver core: Set fw_devlink to "permissive" behavior by default driver core: Replace open-coded list_last_entry() driver core: Read atomic counter once in driver_probe_done() libfs: fix infoleak in simple_attr_read() driver core: Add device links from fwnode only for the primary device platform/x86: touchscreen_dmi: Add info for the Chuwi Vi8 Plus tablet platform/x86: touchscreen_dmi: Add EFI embedded firmware info support Input: icn8505 - Switch to firmware_request_platform for retreiving the fw Input: silead - Switch to firmware_request_platform for retreiving the fw selftests: firmware: Add firmware_request_platform tests test_firmware: add support for firmware_request_platform firmware: Add new platform fallback mechanism and firmware_request_platform() Revert "drivers: base: power: wakeup.c: Use built-in RCU list checking" drivers: base: power: wakeup.c: Use built-in RCU list checking component: allow missing unbind callback debugfs: remove return value of debugfs_create_file_size() debugfs: Check module state before warning in {full/open}_proxy_open() firmware: fix a double abort case with fw_load_sysfs_fallback arch_topology: Fix putting invalid cpu clk ...
2020-03-30Merge tag 'usb-5.7-rc1' of ↵Linus Torvalds1-21/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / PHY updates from Greg KH: "Here are the big set of USB and PHY driver patches for 5.7-rc1. Nothing huge here, some new PHY drivers, loads of USB gadget fixes and updates, xhci updates, usb-serial driver updates and new device ids, and other minor things. Full details in the shortlog. All have been in linux-next for a while with no reported issues" * tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (239 commits) USB: cdc-acm: restore capability check order usb: cdns3: make signed 1 bit bitfields unsigned usb: gadget: fsl: remove unused variable 'driver_desc' usb: gadget: f_fs: Fix use after free issue as part of queue failure usb: typec: Correct the documentation for typec_cable_put() USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback USB: serial: option: add Wistron Neweb D19Q1 USB: serial: option: add BroadMobi BM806U USB: serial: option: add support for ASKEY WWHC050 usb: core: Add ACPI support for USB interface devices driver core: platform: Reimplement devm_platform_ioremap_resource usb: dwc2: convert to devm_platform_get_and_ioremap_resource usb: host: hisilicon: convert to devm_platform_get_and_ioremap_resource usb: host: xhci-plat: convert to devm_platform_get_and_ioremap_resource drivers: provide devm_platform_get_and_ioremap_resource() phy: qcom-qusb2: Add new overriding tuning parameters in QUSB2 V2 PHY phy: qcom-qusb2: Add support for overriding tuning parameters in QUSB2 V2 PHY dt-bindings: phy: qcom-qusb2: Add support for overriding Phy tuning parameters phy: qcom-qusb2: Add generic QUSB2 V2 PHY support dt-bindings: phy: qcom,qusb2: Add compatibles for QUSB2 V2 phy and SC7180 ...
2020-03-30Merge tag 'docs-5.7' of git://git.lwn.net/linuxLinus Torvalds8-66/+411
Pull documentation updates from Jonathan Corbet: "This has been a busy cycle for documentation work. Highlights include: - Lots of RST conversion work by Mauro, Daniel ALmeida, and others. Maybe someday we'll get to the end of this stuff...maybe... - Some organizational work to bring some order to the core-api manual. - Various new docs and additions to the existing documentation. - Typo fixes, warning fixes, ..." * tag 'docs-5.7' of git://git.lwn.net/linux: (123 commits) Documentation: x86: exception-tables: document CONFIG_BUILDTIME_TABLE_SORT MAINTAINERS: adjust to filesystem doc ReST conversion docs: deprecated.rst: Add BUG()-family doc: zh_CN: add translation for virtiofs doc: zh_CN: index files in filesystems subdirectory docs: locking: Drop :c:func: throughout docs: locking: Add 'need' to hardirq section docs: conf.py: avoid thousands of duplicate label warning on Sphinx docs: prevent warnings due to autosectionlabel docs: fix reference to core-api/namespaces.rst docs: fix pointers to io-mapping.rst and io_ordering.rst files Documentation: Better document the softlockup_panic sysctl docs: hw-vuln: tsx_async_abort.rst: get rid of an unused ref docs: perf: imx-ddr.rst: get rid of a warning docs: filesystems: fuse.rst: supress a Sphinx warning docs: translations: it: avoid duplicate refs at programming-language.rst docs: driver.rst: supress two ReSt warnings docs: trace: events.rst: convert some new stuff to ReST format Documentation: Add io_ordering.rst to driver-api manual Documentation: Add io-mapping.rst to driver-api manual ...
2020-03-27Merge tag 'v5.6-rc7' into develLinus Walleij2-4/+14
Linux 5.6-rc7
2020-03-25docs: gpio: driver.rst: don't mark literal blocks twiceMauro Carvalho Chehab1-2/+2
Two literal blocks there are marked with both "::" and .. code-block:: c This causes Sphinx (2.4.1) to do the wrong thing, causing lots of warnings: Documentation/driver-api/gpio/driver.rst:425: WARNING: Unexpected indentation. Documentation/driver-api/gpio/driver.rst:423: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:427: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:433: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:446: WARNING: Unexpected indentation. Documentation/driver-api/gpio/driver.rst:440: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:440: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:447: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/gpio/driver.rst:449: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/driver-api/gpio/driver.rst:462: WARNING: Unexpected indentation. Documentation/driver-api/gpio/driver.rst:460: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:462: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:465: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/gpio/driver.rst:467: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:467: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:467: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:471: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:478: WARNING: Inline emphasis start-string without end-string. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
2020-03-24Merge tag 'dmaengine-fix-5.6' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds1-2/+10
Pull dmaengine fixes from Vinod Koul: "Late fixes in dmaengine for v5.6: - move .device_release missing log warning to debug - couple of maintainer entries for HiSilicon and IADX drivers - off-by-one fix for idxd driver - documentation warning fixes - TI k3 dma error handling fix" * tag 'dmaengine-fix-5.6' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: ti: k3-udma-glue: Fix an error handling path in 'k3_udma_glue_cfg_rx_flow()' MAINTAINERS: Add maintainer for HiSilicon DMA engine driver dmaengine: idxd: fix off by one on cdev dwq refcount MAINTAINERS: rectify the INTEL IADX DRIVER entry dmaengine: move .device_release missing log warning to debug level docs: dmaengine: provider.rst: get rid of some warnings
2020-03-23Merge tag 'soundwire-5.7-rc1' of ↵Greg Kroah-Hartman1-17/+44
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next Vinod writes: soundwire updates for v5.7-rc1 This contains updates to stream and pm handling in the core as well as updates to Intel drivers for hw sequencing and multi-link. Details: Core: - Updates to stream handling for state machine checks - Changes to handle potential races for probe/enumeration and init of the bus - Add no pm version of read and writes - Support for multiple Slave on same link - Add read_only_wordlength for simple/reduced ports Intel: - Updates to cadence lib to handle hw sequencing - Support for audio dai calls in intel driver - Multi link support for cadence lib Qualcomm: - Support for get_sdw_stream() * tag 'soundwire-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (43 commits) soundwire: qcom: add support for get_sdw_stream() soundwire: stream: Add read_only_wordlength flag to port properties soundwire: cadence: clear FIFO to avoid pop noise issue on playback start soundwire: cadence: multi-link support soundwire: cadence: commit changes in the exit_reset() sequence soundwire: cadence: remove automatic command retries soundwire: cadence: remove PREQ_DELAY assignment soundwire: cadence: enable NORMAL operation in cdns_init() soundwire: cadence: reorder MCP_CONFIG settings soundwire: cadence: make SSP interval programmable soundwire: cadence: move clock/SSP related inits to dedicated function soundwire: cadence: merge routines to clear/set bits soundwire: cadence: mask Slave interrupt before stopping clock soundwire: cadence: fix a io timeout issue in S3 test soundwire: cadence: add clock_stop/restart routines soundwire: cadence: handle error cases with CONFIG_UPDATE soundwire: cadence: add interface to check clock status soundwire: cadence: simplifiy cdns_init() soundwire: cadence: s/update_config/config_update soundwire: stream: use sdw_write instead of update ...
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