aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/driver-api/index.rst (follow)
AgeCommit message (Collapse)AuthorFilesLines
2019-12-02Merge tag 'docs-5.5a' of git://git.lwn.net/linuxLinus Torvalds1-2/+1
Pull Documentation updates from Jonathan Corbet: "Here are the main documentation changes for 5.5: - Various kerneldoc script enhancements. - More RST conversions; those are slowing down as we run out of things to convert, but we're a ways from done still. - Dan's "maintainer profile entry" work landed at last. Now we just need to get maintainers to fill in the profiles... - A reworking of the parallel build setup to work better with a variety of systems (and to not take over huge systems entirely in particular). - The MAINTAINERS file is now converted to RST during the build. Hopefully nobody ever tries to print this thing, or they will need to load a lot of paper. - A script and documentation making it easy for maintainers to add Link: tags at commit time. Also included is the removal of a bunch of spurious CR characters" * tag 'docs-5.5a' of git://git.lwn.net/linux: (91 commits) docs: remove a bunch of stray CRs docs: fix up the maintainer profile document libnvdimm, MAINTAINERS: Maintainer Entry Profile Maintainer Handbook: Maintainer Entry Profile MAINTAINERS: Reclaim the P: tag for Maintainer Entry Profile docs, parallelism: Rearrange how jobserver reservations are made docs, parallelism: Do not leak blocking mode to other readers docs, parallelism: Fix failure path and add comment Documentation: Remove bootmem_debug from kernel-parameters.txt Documentation: security: core.rst: fix warnings Documentation/process/howto/kokr: Update for 4.x -> 5.x versioning Documentation/translation: Use Korean for Korean translation title docs/memory-barriers.txt: Remove remaining references to mmiowb() docs/memory-barriers.txt/kokr: Update I/O section to be clearer about CPU vs thread docs/memory-barriers.txt/kokr: Fix style, spacing and grammar in I/O section Documentation/kokr: Kill all references to mmiowb() docs/memory-barriers.txt/kokr: Rewrite "KERNEL I/O BARRIER EFFECTS" section docs: Add initial documentation for devfreq Documentation: Document how to get links with git am docs: Add request_irq() documentation ...
2019-12-01Merge tag 'gpio-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpioLinus Torvalds1-1/+0
Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v5.5 kernel cycle Core changes: - Expose pull up/down flags for the GPIO character device to userspace. After clear input from the RaspberryPi and Beagle communities, it has been established that prototyping, industrial automation and make communities strongly need this feature, and as we want people to use the character device, we have implemented the simple pull up/down interface for GPIO lines. This means we can specify that a (chip-specific) pull up/down resistor can be enabled, but does not offer fine-grained control such as cases where the resistance of the same pull resistor can be controlled (yet). - Introduce devm_fwnode_gpiod_get_index() and start to phase out the old symbol devm_fwnode_get_index_gpiod_from_child(). - A bit of documentation clean-up work. - Introduce a define for GPIO line directions and deploy it in all GPIO drivers in the drivers/gpio directory. - Add a special callback to populate pin ranges when cooperating with the pin control subsystem and registering ranges as part of adding a gpiolib driver and a gpio_irq_chip driver at the same time. This is also deployed in the Intel Merrifield driver. New drivers: - RDA Micro GPIO controller. - XGS-iproc GPIO driver. Driver improvements: - Wake event and debounce support on the Tegra 186 driver. - Finalize the Aspeed SGPIO driver. - MPC8xxx uses a normal IRQ handler rather than a chained handler" * tag 'gpio-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (64 commits) gpio: Add TODO item for regmap helper Documentation: gpio: driver.rst: Fix warnings gpio: of: Fix bogus reference to gpiod_get_count() gpiolib: Grammar s/manager/managed/ gpio: lynxpoint: Setup correct IRQ handlers MAINTAINERS: Replace my email by one @kernel.org gpiolib: acpi: Make acpi_gpiochip_alloc_event always return AE_OK gpio/mpc8xxx: fix qoriq GPIO reading gpio: mpc8xxx: Don't overwrite default irq_set_type callback gpiolib: acpi: Print pin number on acpi_gpiochip_alloc_event errors gpiolib: fix coding style in gpiod_hog() drm/bridge: ti-tfp410: switch to using fwnode_gpiod_get_index() gpio: merrifield: Pass irqchip when adding gpiochip gpio: merrifield: Add GPIO <-> pin mapping ranges via callback gpiolib: Introduce ->add_pin_ranges() callback gpio: mmio: remove untrue leftover comment gpio: em: Use platform_get_irq() to obtain interrupts gpio: tegra186: Add debounce support gpio: tegra186: Program interrupt route mapping gpio: tegra186: Derive register offsets from bank/port ...
2019-11-19docs: Add initial documentation for devfreqLeonard Crestez1-0/+1
The devfreq subsystem has plenty of kernel-doc comments but they're not currently included in sphinx documentation. Add a minimal devfreq.rst file which mostly just includes kernel-doc comments from devfreq source. This also exposes a number of kernel-doc warnings on `make htmldocs` Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lore.kernel.org/r/e32fa9de8a60060a6ee5fc42f163111034f9a550.1574181341.git.leonard.crestez@nxp.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-10-24docs: driver-api: Remove reference to sgi-ioc4Harald Seiler1-1/+0
Commit f7bc6e42bf12 ("drivers: remove the SGI SN2 IOC4 base support") removed support for SGI SN2 IOC4 and the relevant documentation files. Remove a leftover reference in the toctree of the driver-api documentation to fix this sphinx error: Documentation/driver-api/index.rst:14: WARNING: toctree contains reference to nonexisting document 'driver-api/sgi-ioc4' Fixes: f7bc6e42bf12 ("drivers: remove the SGI SN2 IOC4 base support") Signed-off-by: Harald Seiler <hws@denx.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-10-22infiniband: add a Documentation driver-api chapter for Infinibandrd.dunlab@gmail.com1-0/+1
Add a driver-api chapter for InfiniBand interfaces. Link: https://lore.kernel.org/r/20191010035240.310347906@gmail.com Signed-off-by: Randy Dunlap <rd.dunlab@gmail.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-15docs: admin-guide: Move Dell RBU document from driver-apiJonathan Neuschäfer1-1/+0
This document describes how an admin can use the dell_rbu driver, rather than any in-kernel API details. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-10-09docs: driver-api: Move bt8xxgpio to the gpio directoryJonathan Neuschäfer1-1/+0
Let's declutter Documentation/driver-api a bit. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Link: https://lore.kernel.org/r/20191004164059.10397-1-j.neuschaefer@gmx.net Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-31docs: ipmb: place it at driver-api and convert to ReSTMauro Carvalho Chehab1-0/+1
No new doc should be added at the main Documentation/ directory. Instead, new docs should be added as ReST files, within the Kernel documentation body. Fixes: 51bd6f291583 ("Add support for IPMB driver") Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31docs: thermal: add it to the driver APIMauro Carvalho Chehab1-0/+1
The file contents mostly describes driver internals. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-15docs: add a memory-devices subdir to driver-apiMauro Carvalho Chehab1-0/+1
There are two docs describing memory device drivers. Add both to this new chapter of the driver-api. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: phy: place documentation under driver-apiMauro Carvalho Chehab1-0/+1
This subsystem-specific documentation belongs to the driver-api. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: serial: move it to the driver-apiMauro Carvalho Chehab1-0/+1
The contents of this directory is mostly driver-api stuff. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: driver-api: add remaining converted dirs to itMauro Carvalho Chehab1-0/+2
There are a number of driver-specific descriptions that contain a mix of userspace and kernelspace documentation. Just like we did with other similar subsystems, add them at the driver-api groupset, but don't move the directories. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: driver-api: add xilinx driver API documentationMauro Carvalho Chehab1-0/+1
The current file there (emmi) provides a description of the driver uAPI and kAPI. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: driver-api: add a series of orphaned documentsMauro Carvalho Chehab1-0/+26
There are lots of documents under Documentation/*.txt and a few other orphan documents elsehwere that belong to the driver-API book. Move them to their right place. Reviewed-by: Cornelia Huck <cohuck@redhat.com> # vfio-related parts Acked-by: Logan Gunthorpe <logang@deltatee.com> # switchtec Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: driver-model: move it to the driver-api bookMauro Carvalho Chehab1-0/+1
The audience for the Kernel driver-model is clearly Kernel hackers. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice driver changes
2019-07-15docs: lp855x-driver.rst: add it to the driver-api bookMauro Carvalho Chehab1-0/+1
The content of this file is intended for backlight Kernel developers. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: early-userspace: move to driver-api guideMauro Carvalho Chehab1-0/+1
Those documents describe a kAPI. So, add to the driver-api book. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: interconnect.rst: add it to the driver-api guideMauro Carvalho Chehab1-0/+1
This is intended for Kernel hackers audience. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by: Georgi Djakov <georgi.djakov@linaro.org>
2019-07-15docs: md: move it to the driver-api bookMauro Carvalho Chehab1-0/+1
The docs there were meant to be read by a Kernel developer. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: mmc: move it to the driver-apiMauro Carvalho Chehab1-0/+1
Most of the stuff here is related to the kAPI. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: nfc: add it to the driver-api bookMauro Carvalho Chehab1-0/+1
Most of the descriptions here are oriented to a Kernel developer. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: mtd: move it to the driver-api bookMauro Carvalho Chehab1-0/+1
While I was tempted to move it to admin-guide, as some docs there are more userspace-faced, there are some very technical discussions about memory error correction code from the Kernel implementer's PoV. So, let's place it inside the driver-api book. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15docs: nvdimm: add it to the driver-api bookMauro Carvalho Chehab1-0/+1
The descriptions here are from Kernel driver's PoV. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Dan Williams <dan.j.williams@intel.com>
2019-07-15docs: rapidio: add it to the driver APIMauro Carvalho Chehab1-1/+1
This is actually a subsystem description, with contains both kAPI and uAPI. While it should ideally be slplit, let's place it at driver-api, as most things are related to kAPI and driver-specific info. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-13Merge tag 'for-linus-5.3' of git://github.com/cminyard/linux-ipmiLinus Torvalds1-0/+1
Pull IPMI updates from Corey Minyard: "Some small fixes for various things, nothing huge, mostly found by automated tools. Plus add a driver that allows Linux to act as an IPMB slave device, so it can be a satellite MC in an IPMI network" * tag 'for-linus-5.3' of git://github.com/cminyard/linux-ipmi: docs: ipmb: place it at driver-api and convert to ReST fix platform_no_drv_owner.cocci warnings ipmi: ipmb: don't allocate i2c_client on stack ipmi: ipmb: Fix build error while CONFIG_I2C is set to m Add support for IPMB driver drivers: ipmi: Drop device reference ipmi_ssif: fix unexpected driver unregister warning ipmi_si: use bool type for initialized variable ipmi_si: fix unexpected driver unregister warning
2019-06-30docs: ipmb: place it at driver-api and convert to ReSTMauro Carvalho Chehab1-0/+1
No new doc should be added at the main Documentation/ directory. Instead, new docs should be added as ReST files, within the Kernel documentation body. Fixes: 51bd6f291583 ("Add support for IPMB driver") Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Message-Id: <d23c36ca65fe6ad56af1723bf70f7a7f4154c410.1561804596.git.mchehab+samsung@kernel.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2019-06-06mei: docs: move documentation under driver-apiTomas Winkler1-0/+1
Move mei driver documentation under Documentation/driver-api/ Perform some minimal formating changes to produce correct sphinx rendering and add index.rst Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-07Merge tag 'staging-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds1-0/+1
Pull staging / IIO driver updates from Greg KH: "Here is the big staging and iio driver update for 5.2-rc1. Lots of tiny fixes all over the staging and IIO driver trees here, along with some new IIO drivers. The "counter" subsystem was added in here as well, as it is needed by the IIO drivers and subsystem. Also we ended up deleting two drivers, making this pull request remove a few hundred thousand lines of code, always a nice thing to see. Both of the drivers removed have been replaced with "real" drivers in their various subsystem directories, and they will be coming to you from those locations during this merge window. There are some core vt/selection changes in here, that was due to some cleanups needed for the speakup fixes. Those have all been acked by the various subsystem maintainers (i.e. me), so those are ok. We also added a few new drivers, for some odd hardware, giving new developers plenty to work on with basic coding style cleanups to come in the near future. Other than that, nothing unusual here. All of these have been in linux-next for a while with no reported issues, other than an odd gcc warning for one of the new drivers that should be fixed up soon" [ I fixed up the warning myself - Linus ] * tag 'staging-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (663 commits) staging: kpc2000: kpc_spi: Fix build error for {read,write}q Staging: rtl8192e: Remove extra space before break statement Staging: rtl8192u: ieee80211: Fix if-else indentation warning Staging: rtl8192u: ieee80211: Fix indentation errors by removing extra spaces staging: most: cdev: fix chrdev_region leak in mod_exit staging: wlan-ng: Fix improper SPDX comment style staging: rtl8192u: ieee80211: Resolve ERROR reported by checkpatch staging: vc04_services: bcm2835-camera: Compress two lines into one line staging: rtl8723bs: core: Use !x in place of NULL comparison. staging: rtl8723bs: core: Prefer using the BIT Macro. staging: fieldbus: anybus-s: fix wait_for_completion_timeout return handling staging: kpc2000: fix up build problems with readq() staging: rtlwifi: move remaining phydm .h files staging: rtlwifi: strip down phydm .h files staging: rtlwifi: delete the staging driver staging: fieldbus: anybus-s: rename bus id field to avoid confusion staging: fieldbus: anybus-s: keep device bus id in bus endianness Staging: sm750fb: Change *array into *const array staging: rtl8192u: ieee80211: Fix spelling mistake staging: rtl8192u: ieee80211: Replace bit shifting with BIT macro ...
2019-04-25Documentation: add Linux ACPI to Sphinx TOC treeChangbin Du1-0/+1
Add below index.rst files for ACPI subsystem. More docs will be added later. o admin-guide/acpi/index.rst o driver-api/acpi/index.rst o firmware-guide/index.rst Signed-off-by: Changbin Du <changbin.du@gmail.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-25docs: Add Generic Counter interface documentationWilliam Breathitt Gray1-0/+1
This patch adds high-level documentation about the Generic Counter interface. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-08component: Add documentationDaniel Vetter1-0/+1
While typing these I think doing an s/component_master/aggregate/ would be useful: - it's shorter :-) - I think component/aggregate is much more meaningful naming than component/puppetmaster or something like that. At least to my English ear "aggregate" emphasizes much more the "assemble a pile of things into something bigger" aspect, and there's not really much of a control hierarchy between aggregate and constituing components. But that's way more than a quick doc typing exercise ... Thanks to Ram for commenting on an initial draft of these docs. v2: Review from Rafael: - git add Documenation/driver-api/component.rst - lots of polish to the wording + spelling fixes. v3: Review from Russell: - s/framework/helper - clarify the documentation for component_match_add functions. v4: Remove a few superflous "This". Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: "C, Ramalingam" <ramalingam.c@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190207232759.14553-1-daniel.vetter@ffwll.ch
2018-11-12docs: driver-api: Add I3C documentationBoris Brezillon1-0/+1
Add the I3C documentation describing the protocol, the master driver API and the device driver API. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-25Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds1-1/+1
Pull PCI updates from Bjorn Helgaas: - Fix ASPM link_state teardown on removal (Lukas Wunner) - Fix misleading _OSC ASPM message (Sinan Kaya) - Make _OSC optional for PCI (Sinan Kaya) - Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set (Patrick Talbert) - Remove x86 and arm64 node-local allocation for host bridge structures (Punit Agrawal) - Pay attention to device-specific _PXM node values (Jonathan Cameron) - Support new Immediate Readiness bit (Felipe Balbi) - Differentiate between pciehp surprise and safe removal (Lukas Wunner) - Remove unnecessary pciehp includes (Lukas Wunner) - Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner) - Tolerate PCIe Slot Presence Detect being hardwired to zero to workaround broken hardware, e.g., the Wilocity switch/wireless device (Lukas Wunner) - Unify pciehp controller & slot structs (Lukas Wunner) - Constify hotplug_slot_ops (Lukas Wunner) - Drop hotplug_slot_info (Lukas Wunner) - Embed hotplug_slot struct into users instead of allocating it separately (Lukas Wunner) - Initialize PCIe port service drivers directly instead of relying on initcall ordering (Keith Busch) - Restore PCI config state after a slot reset (Keith Busch) - Save/restore DPC config state along with other PCI config state (Keith Busch) - Reference count devices during AER handling to avoid race issue with concurrent hot removal (Keith Busch) - If an Upstream Port reports ERR_FATAL, don't try to read the Port's config space because it is probably unreachable (Keith Busch) - During error handling, use slot-specific reset instead of secondary bus reset to avoid link up/down issues on hotplug ports (Keith Busch) - Restore previous AER/DPC handling that does not remove and re-enumerate devices on ERR_FATAL (Keith Busch) - Notify all drivers that may be affected by error recovery resets (Keith Busch) - Always generate error recovery uevents, even if a driver doesn't have error callbacks (Keith Busch) - Make PCIe link active reporting detection generic (Keith Busch) - Support D3cold in PCIe hierarchies during system sleep and runtime, including hotplug and Thunderbolt ports (Mika Westerberg) - Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots are empty or occupied (Jon Derrick) - Remove duplicated include from pci/pcie/err.c and unused variable from cpqphp (YueHaibing) - Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza Pawandeep) - Uninline PCI bus accessors for better ftracing (Keith Busch) - Remove unused AER Root Port .error_resume method (Keith Busch) - Use kfifo in AER instead of a local version (Keith Busch) - Use threaded IRQ in AER bottom half (Keith Busch) - Use managed resources in AER core (Keith Busch) - Reuse pcie_port_find_device() for AER injection (Keith Busch) - Abstract AER interrupt handling to disconnect error injection (Keith Busch) - Refactor AER injection callbacks to simplify future improvments (Keith Busch) - Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski) - Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko) - Add switch fall-through annotations (Gustavo A. R. Silva) - Remove unused Switchtec quirk variable (Joshua Abraham) - Fix pci.c kernel-doc warning (Randy Dunlap) - Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig) - Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng) - Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid useless dmesg errors (Logan Gunthorpe) - Update Switchtec NTB documentation (Wesley Yung) - Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz) - Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang) - Add PCI support for peer-to-peer DMA (Logan Gunthorpe) - Add sysfs group for PCI peer-to-peer memory statistics (Logan Gunthorpe) - Add PCI peer-to-peer DMA scatterlist mapping interface (Logan Gunthorpe) - Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan Gunthorpe) - Add PCI peer-to-peer DMA driver writer's documentation (Logan Gunthorpe) - Add block layer flag to indicate driver support for PCI peer-to-peer DMA (Logan Gunthorpe) - Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P memory (Logan Gunthorpe) - Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan Gunthorpe) - Add nvme-pci support for PCI peer-to-peer memory in requests (Logan Gunthorpe) - Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise, Christoph Hellwig, Logan Gunthorpe) - Cache VF config space size to optimize enumeration of many VFs (KarimAllah Ahmed) - Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas) - Fix VMD AERSID quirk Device ID matching (Jon Derrick) - Fix Cadence PHY handling during probe (Alan Douglas) - Signal Cadence Endpoint interrupts via AXI region 0 instead of last region (Alan Douglas) - Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan Douglas) - Remove redundant controller tests for "device_type == pci" (Rob Herring) - Document R-Car E3 (R8A77990) bindings (Tho Vu) - Add device tree support for R-Car r8a7744 (Biju Das) - Drop unused mvebu PCIe capability code (Thomas Petazzoni) - Add shared PCI bridge emulation code (Thomas Petazzoni) - Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni) - Add aardvark Root Port emulation (Thomas Petazzoni) - Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach) - Add initial power management for i.MX7 (Leonard Crestez) - Add PME_Turn_Off support for i.MX7 (Leonard Crestez) - Fix qcom runtime power management error handling (Bjorn Andersson) - Update TI dra7xx unaligned access errata workaround for host mode as well as endpoint mode (Vignesh R) - Fix kirin section mismatch warning (Nathan Chancellor) - Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare) - Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I) - Update Keystone to use MRRS quirk for host bridge instead of open coding (Kishon Vijay Abraham I) - Refactor Keystone link establishment (Kishon Vijay Abraham I) - Simplify and speed up Keystone link training (Kishon Vijay Abraham I) - Remove unused Keystone host_init argument (Kishon Vijay Abraham I) - Merge Keystone driver files into one (Kishon Vijay Abraham I) - Remove redundant Keystone platform_set_drvdata() (Kishon Vijay Abraham I) - Rename Keystone functions for uniformity (Kishon Vijay Abraham I) - Add Keystone device control module DT binding (Kishon Vijay Abraham I) - Use SYSCON API to get Keystone control module device IDs (Kishon Vijay Abraham I) - Clean up Keystone PHY handling (Kishon Vijay Abraham I) - Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I) - Clean up Keystone config space access checks (Kishon Vijay Abraham I) - Get Keystone outbound window count from DT (Kishon Vijay Abraham I) - Clean up Keystone outbound window configuration (Kishon Vijay Abraham I) - Clean up Keystone DBI setup (Kishon Vijay Abraham I) - Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I) - Fix Keystone IRQ status checking (Kishon Vijay Abraham I) - Add debug messages for all Keystone errors (Kishon Vijay Abraham I) - Clean up Keystone includes and macros (Kishon Vijay Abraham I) - Fix Mediatek unchecked return value from devm_pci_remap_iospace() (Gustavo A. R. Silva) - Fix Mediatek endpoint/port matching logic (Honghui Zhang) - Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui Zhang) - Remove redundant Mediatek PM domain check (Honghui Zhang) - Convert Mediatek to pci_host_probe() (Honghui Zhang) - Fix Mediatek MSI enablement (Honghui Zhang) - Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang) - Add Mediatek loadable module support (Honghui Zhang) - Detach VMD resources after stopping root bus to prevent orphan resources (Jon Derrick) - Convert pcitest build process to that used by other tools (iio, perf, etc) (Gustavo Pimentel) * tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits) PCI/AER: Refactor error injection fallbacks PCI/AER: Abstract AER interrupt handling PCI/AER: Reuse existing pcie_port_find_device() interface PCI/AER: Use managed resource allocations PCI: pcie: Remove redundant 'default n' from Kconfig PCI: aardvark: Implement emulated root PCI bridge config space PCI: mvebu: Convert to PCI emulated bridge config space PCI: mvebu: Drop unused PCI express capability code PCI: Introduce PCI bridge emulated config space common logic PCI: vmd: Detach resources after stopping root bus nvmet: Optionally use PCI P2P memory nvmet: Introduce helper functions to allocate and free request SGLs nvme-pci: Add support for P2P memory in requests nvme-pci: Use PCI p2pmem subsystem to manage the CMB IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() block: Add PCI P2P flag for request queue PCI/P2PDMA: Add P2P DMA driver writer's documentation docs-rst: Add a new directory for PCI documentation PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset ...
2018-10-17docs-rst: Add a new directory for PCI documentationLogan Gunthorpe1-1/+1
Add a new directory in the driver API guide for PCI-specific documentation. This is in preparation for adding a new PCI P2P DMA driver writers guide which will go in this directory. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Logan Gunthorpe <logang@deltatee.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Sanyog Kale <sanyog.r.kale@intel.com> Cc: Sagar Dharia <sdharia@codeaurora.org>
2018-09-06FireWire: add a Documentation driver-api chapterRandy Dunlap1-0/+1
Add a basic Firewire/IEEE 1394 driver API chapter to the Linux kernel documentation. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: linux-doc@vger.kernel.org Cc: linux-scsi@vger.kernel.org Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-06-10Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds1-0/+1
Pull SCSI updates from James Bottomley: "This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc, xfcp, hisi_sas, cxlflash, qla2xxx. In the absence of Nic, we're also taking target updates which are mostly minor except for the tcmu refactor. The only real core change to worry about is the removal of high page bouncing (in sas, storvsc and iscsi). This has been well tested and no problems have shown up so far" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (268 commits) scsi: lpfc: update driver version to 12.0.0.4 scsi: lpfc: Fix port initialization failure. scsi: lpfc: Fix 16gb hbas failing cq create. scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfc scsi: lpfc: correct oversubscription of nvme io requests for an adapter scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx) scsi: hisi_sas: Mark PHY as in reset for nexus reset scsi: hisi_sas: Fix return value when get_free_slot() failed scsi: hisi_sas: Terminate STP reject quickly for v2 hw scsi: hisi_sas: Add v2 hw force PHY function for internal ATA command scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot scsi: hisi_sas: Try wait commands before before controller reset scsi: hisi_sas: Init disks after controller reset scsi: hisi_sas: Create a scsi_host_template per HW module scsi: hisi_sas: Reset disks when discovered scsi: hisi_sas: Add LED feature for v3 hw scsi: hisi_sas: Change common allocation mode of device id scsi: hisi_sas: change slot index allocation mode scsi: hisi_sas: Introduce hisi_sas_phy_set_linkrate() scsi: hisi_sas: fix a typo in hisi_sas_task_prep() ...
2018-06-05Merge tag 'char-misc-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds1-0/+1
Pull char/misc driver updates from Greg KH: "Here is the "big" char and misc driver patches for 4.18-rc1. It's not a lot of stuff here, but there are some highlights: - coreboot driver updates - soundwire driver updates - android binder updates - fpga big sync, mostly documentation - lots of minor driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (81 commits) vmw_balloon: fixing double free when batching mode is off MAINTAINERS: Add driver-api/fpga path fpga: clarify that unregister functions also free documentation: fpga: move fpga-region.txt to driver-api documentation: fpga: add bridge document to driver-api documentation: fpga: move fpga-mgr.txt to driver-api Documentation: fpga: move fpga overview to driver-api fpga: region: kernel-doc fixes fpga: bridge: kernel-doc fixes fpga: mgr: kernel-doc fixes fpga: use SPDX fpga: region: change api, add fpga_region_create/free fpga: bridge: change api, don't use drvdata fpga: manager: change api, don't use drvdata fpga: region: don't use drvdata in common fpga code Drivers: hv: vmbus: Removed an unnecessary cast from void * ver_linux: Drop redundant calls to system() to test if file is readable ver_linux: Move stderr redirection from function parameter to function body misc: IBM Virtual Management Channel Driver (VMC) rpmsg: Correct support for MODULE_DEVICE_TABLE() ...
2018-05-25Documentation: fpga: move fpga overview to driver-apiAlan Tull1-0/+1
Start of moving Documentation/fpga/*.txt to driver-api, including: - Add new directory driver-api/fpga - Add new file driver-api/fpga/index.rst - Add driver-api/fpga to driver-api/index.rst - Move Documentation/fpga/overview.txt to driver-api/fpga/intro.rst - Formatting and rewrites so that intro.rst will build cleanly and form a good introduction to the rest of the docs to be added. Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-08docs: driver-api: add clk documentationMauro Carvalho Chehab1-0/+1
The clk.rst is already in ReST format. So, move it to the driver-api guide, where it belongs. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-05-08docs: */index.rst: Add newer documents to their respective index.rstMauro Carvalho Chehab1-0/+1
A number of new docs were added, but they're currently not on the index.rst from the session they're supposed to be, causing Sphinx warnings. Add them. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-04-20scsi: target: add driver-api documentRandy Dunlap1-0/+1
Add a driver-api document for target/iSCSI interfaces. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> To: "Nicholas A. Bellinger" <nab@linux-iscsi.org> Cc: linux-scsi@vger.kernel.org Cc: target-devel@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-03-23Documentation: driver-api: Move gpio.rst to gpio/index.rstJonathan Neuschäfer1-1/+1
To make space for more files in the GPIO section, create a Documentation/driver-api/gpio/ directory. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-12-19Documentation: Add SoundWire summarySanyog Kale1-0/+1
SoundWire is a new Linux bus which implements a new MIPI bus protocol 'SoundWire'. The summary of SoundWire bus and API is documented in the 'summary' file. Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19Documentation: Add SLIMbus summarySagar Dharia1-0/+1
SLIMbus (Serial Low Power Interchip Media Bus) is a specification developed by MIPI (Mobile Industry Processor Interface) alliance. SLIMbus is a 2-wire implementation, which is used to communicate with peripheral components like audio-codec. The summary of SLIMbus and API is documented in the 'summary' file. Signed-off-by: Sagar Dharia <sdharia@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-05dmaengine: doc: Add ReST style dmaengine documentVinod Koul1-0/+1
This removes the index file and adds the index.rst as placeholder and update driver-api index to add dmaengine. As a consequence dmaengine documentation will be in driver-api/ Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-08-14docs: driver-api: Add GPIO sectionThierry Reding1-0/+1
This adds a section about the various parts of the GPIO subsystem to the driver API documentation. Note that this isn't exhaustive documentation, but rather focusses on pulling in the kerneldoc from various sources, in order to improve coverage of kerneldoc processing. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-07-06Merge tag 'pinctrl-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds1-0/+1
Pull pin control updates from Linus Walleij: "This is the big bulk of pin control changes for the v4.13 series: Core: - The documentation is moved over to RST. - We now have agreed bindings for enabling input and output buffers without actually enabling input and/or output on a pin. We are chiseling out some details of pin control electronics. New drivers: - ZTE ZX - Renesas RZA1 - MIPS Ingenic JZ47xx: also switch over existing drivers in the tree to use this pin controller and consolidate earlier spread out code. - Microschip MCP23S08: this driver is migrated from the GPIO subsystem and totally rewritten to use proper pin control. All users are switched over. New subdrivers: - Renesas R8A7743 and R8A7745. - Allwinner Sunxi A83T R_PIO. - Marvell MVEBU Armada CP110 and AP806. - Intel Cannon Lake PCH. - Qualcomm IPQ8074. Notable improvements: - IRQ support on the Marvell MVEBU Armada 37xx. - Meson driver supports HDMI CEC, AO, I2S, SPDIF and PWM. - Rockchip driver now supports iomux-route switching for RK3228, RK3328 and RK3399. - Rockchip A10 and A20 are merged into a single driver. - STM32 has improved GPIO support. - Samsung Exynos drivers are split per ARMv7 and ARMv8. - Marvell MVEBU is converted to use regmap for register access. Maintenance: - Several Renesas SH-PFC refactorings and updates. - Serious code size cut for Mediatek MT7623. - Misc janitorial and MAINTAINERS fixes" * tag 'pinctrl-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (137 commits) pinctrl: samsung: Remove bogus irq_[un]mask from resource management pinctrl: rza1: make structures rza1_gpiochip_template and rza1_pinmux_ops static pinctrl: rza1: Remove unneeded wrong check for wrong variable pinctrl: qcom: Add ipq8074 pinctrl driver pinctrl: freescale: imx7d: make of_device_ids const. pinctrl: DT: extend the pinmux property to support integers array pinctrl: generic: Add output-enable property pinctrl: armada-37xx: Fix number of pin in sdio_sb pinctrl: armada-37xx: Fix uart2 group selection register mask pinctrl: bcm2835: Avoid warning from __irq_do_set_handler pinctrl: sh-pfc: r8a7795: Add PWM support MAINTAINERS: Add Qualcomm pinctrl drivers section arm: dts: dt-bindings: Add Renesas RZ/A1 pinctrl header dt-bindings: pinctrl: Add RZ/A1 bindings doc pinctrl: Renesas RZ/A1 pin and gpio controller pinctrl: sh-pfc: r8a7792: Add SCIF1 and SCIF2 pin groups pinctrl.txt: move it to the driver-api book pinctrl: ingenic: checking for NULL instead of IS_ERR() pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD20 pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD11 ...
2017-06-20pinctrl.txt: move it to the driver-api bookMauro Carvalho Chehab1-0/+1
As pinctrl describes a feature from drivers/base, place it at the right book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-16docs-rst: convert mtdnand book to ReSTMauro Carvalho Chehab1-0/+1
Use pandoc to convert documentation to ReST by calling Documentation/sphinx/tmplcvt script. The tables were manually adjusted to fit into 80 columns. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>