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2021-02-12i2c: testunit: add support for block process callsWolfram Sang1-2/+21
Devices offering SMBus block process calls are rare, so add it to the testunit. This is also a good test case for testing proper I2C_M_RECV_LEN flag handling of I2C bus masters emulating SMBus. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-10-05Documentation: i2c: add testunit docs to indexWolfram Sang1-0/+1
Fixes: a8335c64c5f0 ("i2c: add slave testunit driver") Reported-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-10-05i2c: testunit: improve documentationWolfram Sang1-5/+8
Mention that new CMDs will be NACKed while the old one is still on-going, that the I2C address parameter of READ_BYTES is 7 bit only, and reword one paragraph to be more precise. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-29i2c: i801: Add support for Intel Alder Lake PCH-SJarkko Nikula1-0/+1
Add PCI ID of SMBus controller on Intel Alder Lake PCH-S Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-21i2c: add slave testunit driverWolfram Sang1-0/+66
Here is an I2C slave backend driver which allows to test some uncommon functionalities of the I2C and SMBus world. Usually, you need specific devices to test e.g. SMBus Host Notify and such. With this driver you just need the slave interface of another I2C controller. This initial version has testcases for multi-master and SMBus Host Notify. Already planned but not yet implemented are SMBus Alert and messages with I2C_M_RECV_LEN. Please read the documentation for further details. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-08-13Merge branch 'i2c/for-5.9' of ↵Linus Torvalds2-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: - bus recovery can now be given a pinctrl handle and the I2C core will do all the steps to switch to/from GPIO which can save quite some boilerplate code from drivers - "fallthrough" conversion - driver updates, mostly ID additions * 'i2c/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (32 commits) i2c: iproc: fix race between client unreg and isr i2c: eg20t: use generic power management i2c: eg20t: Drop PCI wakeup calls from .suspend/.resume i2c: mediatek: Fix i2c_spec_values description i2c: mediatek: Add i2c compatible for MediaTek MT8192 dt-bindings: i2c: update bindings for MT8192 SoC i2c: mediatek: Add access to more than 8GB dram in i2c driver i2c: mediatek: Add apdma sync in i2c driver i2c: i801: Add support for Intel Tiger Lake PCH-H i2c: i801: Add support for Intel Emmitsburg PCH i2c: bcm2835: Replace HTTP links with HTTPS ones Documentation: i2c: dev: 'block process call' is supported i2c: at91: Move to generic GPIO bus recovery i2c: core: treat EPROBE_DEFER when acquiring SCL/SDA GPIOs i2c: core: add generic I2C GPIO recovery dt-bindings: i2c: add generic properties for GPIO bus recovery i2c: rcar: avoid race when unregistering slave i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c i2c: tegra: Fix runtime resume to re-init VI I2C i2c: tegra: Fix the error path in tegra_i2c_runtime_resume ...
2020-08-13Merge tag 'docs-5.9-2' of git://git.lwn.net/linuxLinus Torvalds2-286/+0
Pull documentation fixes from Jonathan Corbet: "A handful of obvious fixes that wandered in during the merge window" * tag 'docs-5.9-2' of git://git.lwn.net/linux: Documentation/locking/locktypes: fix the typo doc/zh_CN: resolve undefined label warning in admin-guide index doc/zh_CN: fix title heading markup in admin-guide cpu-load docs: remove the 2.6 "Upgrading I2C Drivers" guide docs: Correct the release date of 5.2 stable mailmap: Update comments for with format and more detalis docs: cdrom: Fix a typo and rst markup Doc: admin-guide: use correct legends in kernel-parameters.txt Documentation/features: refresh RISC-V arch support files documentation: coccinelle: Improve command example for make C={1,2} Core-api: Documentation: Replace deprecated :c:func: Usage Dev-tools: Documentation: Replace deprecated :c:func: Usage Filesystems: Documentation: Replace deprecated :c:func: Usage docs: trace: fix a typo
2020-08-11docs: remove the 2.6 "Upgrading I2C Drivers" guideStephen Kitt2-286/+0
All the drivers have long since been upgraded, and all the important information here is also included in the "Implementing I2C device drivers" guide. Signed-off-by: Stephen Kitt <steve@sk2.org> Reviewed-by: Wolfram Sang <wsa@kernel.org> Link: https://lore.kernel.org/r/20200806161456.8680-1-steve@sk2.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-08-05i2c: i801: Add support for Intel Emmitsburg PCHMika Westerberg1-0/+1
Add support for SMBus controller on Intel Emmitsburg PCH. This is the same IP as used in Cannon Lake and derivatives. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-08-05Documentation: i2c: dev: 'block process call' is supportedWolfram Sang1-0/+2
And it has been for a while (since 2012 at least), only it was not documented. Add it. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-08-04Merge tag 'docs-5.9' of git://git.lwn.net/linuxLinus Torvalds1-1/+1
Pull documentation updates from Jonathan Corbet: "It's been a busy cycle for documentation - hopefully the busiest for a while to come. Changes include: - Some new Chinese translations - Progress on the battle against double words words and non-HTTPS URLs - Some block-mq documentation - More RST conversions from Mauro. At this point, that task is essentially complete, so we shouldn't see this kind of churn again for a while. Unless we decide to switch to asciidoc or something...:) - Lots of typo fixes, warning fixes, and more" * tag 'docs-5.9' of git://git.lwn.net/linux: (195 commits) scripts/kernel-doc: optionally treat warnings as errors docs: ia64: correct typo mailmap: add entry for <alobakin@marvell.com> doc/zh_CN: add cpu-load Chinese version Documentation/admin-guide: tainted-kernels: fix spelling mistake MAINTAINERS: adjust kprobes.rst entry to new location devices.txt: document rfkill allocation PCI: correct flag name docs: filesystems: vfs: correct flag name docs: filesystems: vfs: correct sync_mode flag names docs: path-lookup: markup fixes for emphasis docs: path-lookup: more markup fixes docs: path-lookup: fix HTML entity mojibake CREDITS: Replace HTTP links with HTTPS ones docs: process: Add an example for creating a fixes tag doc/zh_CN: add Chinese translation prefer section doc/zh_CN: add clearing-warn-once Chinese version doc/zh_CN: add admin-guide index doc:it_IT: process: coding-style.rst: Correct __maybe_unused compiler label futex: MAINTAINERS: Re-add selftests directory ...
2020-07-13Documentation: i2c: eliminate duplicated wordRandy Dunlap1-1/+1
Drop doubled word "new". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Wolfram Sang <wsa@kernel.org> Cc: linux-i2c@vger.kernel.org Link: https://lore.kernel.org/r/20200707180414.10467-10-rdunlap@infradead.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-07-04i2c: slave-eeprom: update documentationWolfram Sang1-5/+17
Add more details which have either been missing ever since or describe recent additions. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-06-19Documentation/i2c: SMBus start signal is S not ADaniel Schaefer1-1/+1
Just like all other I2C/SMBus commands, the start signal for the SMBus Quick Command is S, not A. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Daniel Schaefer <git@danielschaefer.me> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-04-20docs: i2c: rename i2c.svg to i2c_bus.svgMauro Carvalho Chehab2-2/+2
When generating the PDF output, the Documentation/i2c dir will generate an i2c.pdf. The same happens with i2c.svg: it will also produce a file with the same name, at the same dir. This causes errors when building the PDF output. So, rename the image to i2c_bus.svg. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Link: https://lore.kernel.org/r/ecf3d51909ce46b3e84a1df4b36f07d76989e5da.1586881715.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10i2c: convert SMBus alert setup function to return an ERRPTRWolfram Sang1-1/+1
Only few drivers use this call, so drivers and I2C core are converted at once with this patch. By simply using i2c_new_client_device() instead of i2c_new_device(), we easily can return an ERRPTR for this function as well. To make out of tree users aware that something changed, the function is renamed to i2c_new_smbus_alert_device(). Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: writing-clients: properly name the stop conditionLuca Ceresoli1-3/+3
In I2C there is no such thing as a "stop bit". Use the proper naming: "stop condition". Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reported-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: i2c-protocol: use same wording as smbus-protocolLuca Ceresoli1-3/+3
In smbus-protocol.rst we use the text "Implemented by" for the same meaning as "This corresponds to". Change everything to "Implemented by" for coherency. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reported-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: rename sections so the overall picture is clearerLuca Ceresoli7-21/+21
Some of the section names are not very clear. Reading those names in the index.rst page does not help much in grasping what the content is supposed to be. Rename those sections to clarify their content, especially when reading the index page. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Acked-by: Peter Rosin <peda@axentia.se> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: old-module-parameters: use monospace instead of ""Luca Ceresoli1-5/+5
Use a monospace (literal) formatting for better readability of sysfs attributes and the "dummy" client name. This looks much more readable in ReST-generated output. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: old-module-parameters: clarify this is for obsolete kernelsLuca Ceresoli1-0/+5
This section applies only to code for very old kernels. Avoid people reading this unnecessarily. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: old-module-parameters: fix internal hyperlinkLuca Ceresoli1-2/+2
Use ReST syntax so that a proper hyperlink is generated. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: instantiating-devices: use monospace for sysfs attributesLuca Ceresoli1-7/+7
Use a monospace (literal) formatting for better readability of sysfs attributes. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: instantiating-devices: rearrange static instatiationLuca Ceresoli1-43/+54
Among the "static" instantiation methods the "board file" method is described first. Move it as last, since it is being replaced by the other methods. Also fix subsubsection heading syntax and remove the "Method 1[abc]" prefix as the subsubsection structure clarifies the logical hierarchy. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: instantiating-devices: fix internal hyperlinkLuca Ceresoli1-1/+1
Use ReST syntax so that a proper hyperlink is generated. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: improve I2C Block transactions descriptionLuca Ceresoli1-3/+4
Clarify from the beginning what these transactions are, and specifically how they differ from the SMBus counterparts, i.e. the lack of a Count byte. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: fix punctuationLuca Ceresoli1-1/+1
Remove misplaced dot before colon. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: fix typoLuca Ceresoli1-1/+1
The subject is plural, fix the verb. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: fix kernel-doc function syntaxLuca Ceresoli1-2/+2
This clarifies these are functions (and would/will adds a hyperlink to the function documentation if/when documented). Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: enable kernel-doc function syntaxLuca Ceresoli1-22/+42
Hyperlinks from function names are not generated in headings. Move them in the plain text so they are rendered as clickable hyperlinks. While there also remove an unneeded colon in a heading. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: use proper names for ACK and NACKLuca Ceresoli1-1/+1
Use the proper ACK and NACK naming from the I2C specification instead of "accept" and "reverse accept". Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: remove unneeded colons from tableLuca Ceresoli1-9/+9
These colons are not needed: the columns already nicely separate the symbols from their description. They are also inconsistently preceded by whitespace. Remove the colons completely to simplify and clean up. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: properly name start and stop conditionsLuca Ceresoli1-2/+2
In I2C there is no such thing as a "start bit" or a "stop bit". Use the proper naming: "start condition" and "stop condition". Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: smbus-protocol: fix link syntaxLuca Ceresoli1-2/+2
Use the proper ReST syntax to generate a valid hyperlink. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: i2c-protocol: use proper names for ACK and NACKLuca Ceresoli1-1/+1
Use the proper ACK and NACK naming from the I2C specification instead of "accept" and "reverse accept". Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: i2c-protocol: remove unneeded colons from tableLuca Ceresoli1-9/+9
These colons are not needed: the columns already nicely separate the symbols from their description. They are also inconsistently preceded by whitespace. Remove the colons completely to simplify and clean up. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: i2c-protocol: properly name start and stop conditionsLuca Ceresoli1-7/+8
In I2C there is no such thing as a "start bit" or a "stop bit". Use the proper naming: "start condition" and "stop condition". Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: i2c-protocol: fix kernel-doc function syntaxLuca Ceresoli1-3/+3
This clarifies these are functions and adds a hyperlink to the function documentation. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: replace "I2C-transfer" -> "I2C transfer" consistentlyLuca Ceresoli1-12/+12
"I2C transfer" is a legitimate english sentence, no need for a hyphen between the two words, as as such it is used in most of the documentation. Remove the hyphen in the few places where it is present. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Acked-by: Peter Rosin <peda@axentia.se> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: fix typoLuca Ceresoli1-1/+1
Fix "issus" -> "issues". Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Acked-by: Peter Rosin <peda@axentia.se> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: call it "I2C" consistentlyLuca Ceresoli8-53/+53
Uppercase "I2C" is used almost everywhere in the docs, but the lowercase version "i2c" is used somewhere. Use the uppercase form consistently. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Acked-by: Peter Rosin <peda@axentia.se> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: summary: rewrite the "terminology" sectionLuca Ceresoli2-14/+1363
This section, partly dating back to the pre-git era, is somewhat unclear and partly incorrect. Rewrite it almost completely including a reference figure, concise but precise definition of each term and the paths where drivers are found. Particular care has been put in clarifying the relation between adapter and algorithm, which has no correspondence in the I2C spec terminology. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: summary: extend introductionLuca Ceresoli1-6/+12
- state the "official" name (I²C, not I2C, according to the spec) at the beginning but keep using the more practical I2C elsewhere - mention some known different names - add link to the specification document Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-29docs: i2c: sort index logicallyLuca Ceresoli1-11/+47
The index page currently lists sections in alphabetical file order without caring about their content. Sort sections based on their content logically, according to the following structure: * Intro to I2C/SMBus and their usage in Linux: summary, i2c-protocol, smbus-protocol, instantiating-devices, busses/index, i2c-topology, muxes/i2c-mux-gpio * Implementing drivers: writing-clients, dev-interface, dma-considerations, fault-codes, functionality * Debugging: gpio-fault-injection, i2c-stub * Slave I2C: slave-interface, slave-eeprom-backend * Advanced: ten-bit-addresses * Obsolete info: upgrading-clients, old-module-parameters Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-15docs: i2c: use the new API in 'writing-clients'Wolfram Sang1-10/+10
i2c_new_device is deprecated, use i2c_new_client_device. Also, align a paragraph while here. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-15docs: i2c: use the new API in 'instantiating-devices.rst'Wolfram Sang1-4/+4
i2c_new_device is deprecated, use i2c_new_client_device. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2020-01-15i2c: parport-light: remove driverWolfram Sang2-25/+0
The justification of a light version of the parport driver was less overhead for embedded systems. Well, today, even if an embedded system still has a parport, it surely can handle the fully-fledged parport driver. Remove it to reduce the maintenance burden. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-12-02Merge tag 'docs-5.5a' of git://git.lwn.net/linuxLinus Torvalds2-2/+2
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 ...
2019-11-28i2c: replace i2c_new_probed_device with an ERR_PTR variantWolfram Sang2-9/+9
In the general move to have i2c_new_*_device functions which return ERR_PTR instead of NULL, this patch converts i2c_new_probed_device(). There are only few users, so this patch converts the I2C core and all users in one go. The function gets renamed to i2c_new_scanned_device() so out-of-tree users will get a build failure to understand they need to adapt their error checking code. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: Max Staudt <max@enpas.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-11-25i2c: i801: Correct Intel Jasper Lake SOC namingAndy Shevchenko1-1/+1
There is no suffix applied to Intel Jasper Lake SOC. Remove it from the comments and definitions. Besides that, it's a SOC, thus replace PCH with SOC where it appropriate. Fixes: e0c61c04791a ("i2c: i801: Add support for Intel Jasper Lake") Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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