- Nov 21, 2022
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Yang Yingliang authored
Add missing devm_pwmchip_add() to devres.rst. It's introduced by commit bcda91bf ("pwm: Add a device-managed function to add PWM chips"). Fixes: bcda91bf ("pwm: Add a device-managed function to add PWM chips") Cc: Thierry Reding <thierry.reding@gmail.com> Cc: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Acked-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221102024430.1444714-1-yangyingliang@huawei.com Signed-off-by:
Jonathan Corbet <corbet@lwn.net>
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- Nov 15, 2022
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Yang Yingliang authored
Add some missing device-managed helpers of led to devres.rst. devm_led_classdev_register_ext() is introduced by commit b2b998c0 ("leds: class: Improve LED and LED flash class registration API"). devm_led_trigger_register() is introduced by commit 9534cc31 ("leds: core: add managed version of led_trigger_register"). devm_of_led_get() is introduced by commit e389240a ("leds: Add managed API to get a LED from a device driver"). Signed-off-by:
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Albert Zhou authored
Fix a typo in the description of the kernel parameter eisa_bus.disable_dev within eisa.rst. Signed-off-by:
Albert Zhou <albert.zhou.50@gmail.com> Link: https://lore.kernel.org/r/20221105080653.4741-1-albert.zhou.50@gmail.com Signed-off-by:
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- Nov 09, 2022
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Yang Yingliang authored
Add some missing device-managed helpers of iio to devres.rst. devm_iio_kfifo_buffer_setup_ext() is introduced by commit 0a21526b ("iio: kfifo: add devm_iio_triggered_buffer_setup_ext variant"). devm_iio_triggered_buffer_setup_ext() is introduced by commit 5164c788 ("iio: triggered-buffer: add {devm_}iio_triggered_buffer_setup_ext variants"). devm_iio_hw_consumer_alloc() is introduced by b688c18d ("IIO: hw_consumer: add devm_iio_hw_consumer_alloc"). devm_fwnode_iio_channel_get_by_name() is introduced by commit 1e64b9c5 ("iio: inkern: move to fwnode properties"). Fixes: 0a21526b ("iio: kfifo: add devm_iio_triggered_buffer_setup_ext variant") Fixes: 5164c788 ("iio: triggered-buffer: add {devm_}iio_triggered_buffer_setup_ext variants") Fixes: b688c18d ("IIO: hw_consumer: add devm_iio_hw_consumer_alloc") Fixes: 1e64b9c5 ("iio: inkern: move to fwnode properties") Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20221103023402.1024437-1-yangyingliang@huawei.com Signed-off-by:
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Yang Yingliang authored
Add missing devm_kstrdup_const() to devres.rst. It's introduce by commit 09d1ea1c ("devres: provide devm_kstrdup_const()"). Fixes: 09d1ea1c ("devres: provide devm_kstrdup_const()") Cc: Bartosz Golaszewski <brgl@bgdev.pl> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Akira Yokosawa authored
Since merge of tty-6.0-rc1, "make htmldocs" with Sphinx >=3.1 emits a bunch of warnings indicating duplicate kernel-doc comments from drivers/tty/serial/serial_core.c. This is due to the kernel-doc directive for serial_core.c in serial/drivers.rst added in the merge. It conflicts with an existing kernel-doc directive in miscellaneous.rst. Remove the latter directive and resolve the duplicates. Signed-off-by:
Akira Yokosawa <akiyks@gmail.com> Fixes: 607ca0f7 ("Merge tag 'tty-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty" ) Cc: stable@vger.kernel.org # 6.0 Cc: Jiri Slaby <jslaby@suse.cz> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by:
Jiri Slaby <jirislaby@kernel.org> Link: https://lore.kernel.org/r/4e54c76a-138a-07e0-985a-dd83cb622208@gmail.com Signed-off-by:
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Yang Yingliang authored
Add devm_usb_get_phy_by_phandle() to devres.rst. It's introduced by commit 5d3c28b5 ("usb: otg: add device tree support to otg library"). Add devm_usb_get_phy_by_node() to devres.rst. It's introduced by commit e842b84c ("usb: phy: Add interface to get phy give of device_node.") Fixes: 5d3c28b5 ("usb: otg: add device tree support to otg library") Fixes: e842b84c ("usb: phy: Add interface to get phy give of device_node.") Signed-off-by:
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The example declares "struct pinctrl *p" but refers to "foo->p" which isn't declared in the context of the example. Signed-off-by:
Siarhei Volkau <lis8215@gmail.com> Link: https://lore.kernel.org/r/20221101205159.1468069-3-lis8215@gmail.com Signed-off-by:
Linus Walleij <linus.walleij@linaro.org>
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The function requires two arguments. Signed-off-by:
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- Nov 07, 2022
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Document the typical order of API calls to used by new drivers and controllers. Many existing controllers follow this order, but some do not. This is especially true for controllers designed to work with one particular PHY driver, which may not need a call to (for example) phy_init. Signed-off-by:
Sean Anderson <sean.anderson@seco.com> Link: https://lore.kernel.org/r/20221018175841.1906611-1-sean.anderson@seco.com Signed-off-by:
Vinod Koul <vkoul@kernel.org>
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- Nov 04, 2022
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Add missing devm_acpi_dma_controller_free() to devres.rst, it's introduced by commit 1b2e98bc ("dma: acpi-dma: introduce ACPI DMA helpers"). Fixes: 1b2e98bc ("dma: acpi-dma: introduce ACPI DMA helpers") Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20221102022701.1407289-1-yangyingliang@huawei.com Signed-off-by:
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- Nov 03, 2022
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Ilpo Järvinen authored
Tweak styling of names that come directly from the code. Suggested-by:
Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by:
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20221019093343.9546-6-ilpo.jarvinen@linux.intel.com Signed-off-by:
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Ilpo Järvinen authored
Use "struct serial_rs485" to get the references properly recognized. Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by:
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Ilpo Järvinen authored
Add to rs485 documentation that serial core prepares the struct serial_rs485 when uart_get_rs485_mode() is called. Remove the wrong claim that the driver must fill it by itself. Reviewed-by:
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Ilpo Järvinen authored
Link DT bindings reference properly. Reviewed-by:
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Ilpo Järvinen authored
Convert struct serial_rs485 comments to kernel doc format and include it into documentation. Suggested-by:
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Jiri Slaby (SUSE) authored
Many serial drivers do the same thing: * send x_char if set * keep sending from the xmit circular buffer until either - the loop reaches the end of the xmit buffer - TX is stopped - HW fifo is full * check for pending characters and: - wake up tty writers to fill for more data into xmit buffer - stop TX if there is nothing in the xmit buffer The only differences are: * how to write the character to the HW fifo * the check of the end condition: - is the HW fifo full? - is limit of the written characters reached? So unify the above into two helpers: * uart_port_tx_limited() -- it performs the above taking the written characters limit into account, and * uart_port_tx() -- the same as above, except it only checks the HW readiness, not the characters limit. The HW specific operations (as stated as "differences" above) are passed as arguments to the macros. They are: * tx_ready -- returns true if HW can accept more data. * put_char -- write a character to the device. * tx_done -- when the write loop is done, perform arbitrary action before potential invocation of ops->stop_tx() happens. Note that the above are macros. This means the code is generated in place and the above 3 arguments are "inlined". I.e. no added penalty by generating call instructions for every single character. Nor any indirect calls. (As in some previous versions of this patchset.) Reviewed-by:
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- Nov 02, 2022
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Yang Yingliang authored
Add missing devm_i2c_add_adapter() to devres.rst. It's introduced by commit 07740c92 ("i2c: core: add managed function for adding i2c adapters"). Fixes: 07740c92 ("i2c: core: add managed function for adding i2c adapters") Signed-off-by:
Yicong Yang <yangyicong@hisilicon.com> Reviewed-by:
Wolfram Sang <wsa@kernel.org>
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Yang Yingliang authored
Add missing devm_regulator_bulk_get_const() to devres.rst, it's introduced by commit 1de452a0 ("regulator: core: Allow drivers to define their init data as const"). Fixes: 1de452a0 ("regulator: core: Allow drivers to define their init data as const") Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: Douglas Anderson <dianders@chromium.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- Nov 01, 2022
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Jonathan Neuschäfer authored
struct spi_master has been renamed to struct spi_controller. Update the reference in spi.rst to make it clickable again. Fixes: 8caab75f ("spi: Generalize SPI "master" to "controller"") Signed-off-by:
Jonathan Neuschäfer <j.neuschaefer@gmx.net> Link: https://lore.kernel.org/r/20221101173252.1069294-1-j.neuschaefer@gmx.net Signed-off-by:
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- Oct 25, 2022
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Kees Cook authored
Fix the kern-doc markings for several of the overflow helpers and move their location into the core kernel API documentation, where it belongs (it's not driver-specific). Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: linux-hardening@vger.kernel.org Reviewed-by:
Kees Cook <keescook@chromium.org>
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- Oct 17, 2022
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Dmitry Osipenko authored
Add documentation for the dynamic locking convention. The documentation tells dma-buf API users when they should take the reservation lock and when not. Acked-by:
Sumit Semwal <sumit.semwal@linaro.org> Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221017172229.42269-20-dmitry.osipenko@collabora.com
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Christophe Leroy authored
ARCH_NR_GPIOS have been removed, clean up the documentation. After this patch, the only place when ARCH_NR_GPIOS remains is in translations/zh_CN/gpio.txt and translations/zh_TW/gpio.txt. I don't have the skills to update that, anyway those two files are already out of sync as they are still mentionning ARCH_REQUIRE_GPIOLIB which was removed by commit 65053e1a ("gpio: delete ARCH_[WANTS_OPTIONAL|REQUIRE]_GPIOLIB") Signed-off-by:
Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by:
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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- Oct 04, 2022
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Christoph Hellwig authored
Every driver just emits a string, simply add a method to the mdev_driver to return it and provide a standard sysfs show function. Remove the now unused types_attrs field in struct mdev_driver and the support code for it. Signed-off-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Jason Gunthorpe <jgg@nvidia.com> Reviewed-by:
Kevin Tian <kevin.tian@intel.com> Reviewed-by:
Kirti Wankhede <kwankhede@nvidia.com> Link: https://lore.kernel.org/r/20220923092652.100656-14-hch@lst.de Signed-off-by:
Alex Williamson <alex.williamson@redhat.com>
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Christoph Hellwig authored
Every driver just print a number, simply add a method to the mdev_driver to return it and provide a standard sysfs show function. Signed-off-by:
Eric Farman <farman@linux.ibm.com> Link: https://lore.kernel.org/r/20220923092652.100656-13-hch@lst.de Signed-off-by:
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Christoph Hellwig authored
Every driver just emits a static string, simply add a field to the mdev_type for the driver to fill out or fall back to the sysfs name and provide a standard sysfs show function. Signed-off-by:
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Jason Gunthorpe authored
Every driver just emits a static string, simply feed it through the ops and provide a standard sysfs show function. Signed-off-by:
Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by:
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Christoph Hellwig authored
Just open code the dereferences in the only user. Signed-off-by:
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Christoph Hellwig authored
Instead of abusing struct attribute_group to control initialization of struct mdev_type, just define the actual attributes in the mdev_driver, allocate the mdev_type structures in the caller and pass them to mdev_register_parent. This allows the caller to use container_of to get at the containing structure and thus significantly simplify the code. Signed-off-by:
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Christoph Hellwig authored
Simplify mdev_{un}register_device by requiring the caller to pass in a structure allocate as part of the parent device structure. This removes the need for a list of parents and the separate mdev_parent refcount as we can simplify rely on the reference to the parent device. Signed-off-by:
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- Sep 29, 2022
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Yang Yingliang authored
Add missing devm_request_free_mem_region() to devres.rst. It's introduced by commit 0092908d ("mm: factor out a devm_request_free_mem_region helper"). Signed-off-by:
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Yang Yingliang authored
devm_irq_sim_init() has been changed to devm_irq_domain_create_sim() in commit 337cbeb2 ("genirq/irq_sim: Simplify the API"). Signed-off-by:
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- Sep 27, 2022
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Yang Yingliang authored
Add devm_spi_alloc_master() and devm_spi_alloc_slave() to devres.rst. They are introduced by commit 5e844cc3 ("spi: Introduce device-managed SPI controller allocation"). Signed-off-by:
Lukas Wunner <lukas@wunner.de> Link: https://lore.kernel.org/r/20220923141803.75734-1-yangyingliang@huawei.com Signed-off-by:
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Yang Yingliang authored
Add devm_pinctrl_get_select() and devm_pinctrl_register_and_init() to devres.rst. Signed-off-by:
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Akhil Raj authored
I have removed repeated `the` inside the documentation Signed-off-by:
Akhil Raj <lf32.dev@gmail.com> Link: https://lore.kernel.org/r/20220827145359.32599-1-lf32.dev@gmail.com Signed-off-by:
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- Sep 24, 2022
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[Note: the code is mostly from Laurent but the patch description is from Tomi] The media_pipeline_start() and media_pipeline_stop() functions use the media graph walk API to traverse the graph and validate the pipeline. The graph walk traverses the media graph following links between the entities. Also, while the pipeline can't change between the start and stop calls, the graph is walked again from scratch at stop time, or any time a driver needs to inspect the pipeline. With the upcoming multiplexed streams support we will need a bit more intelligent pipeline construction, as e.g. two independent streams may be passing through a single entity via separate pads in which case those pads should not be part of the same pipeline. This patch essentially rewrites the media_pipeline_start/stop so that a pipeline is defined as a set of pads instead of entities and the media graph traversal considers the pad interdependencies when choosing which links to follow. Currently all the entity's pads are considered as interdependent. This means that the behavior with all the current drivers stays the same, but in the future we can define a more fine-grained pipeline construction. Additionally the media pipeline's pads are cached at media_pipeline_start() time, and re-used at media_pipeline_stop() which avoid the need to re-walk the whole graph as the previous implementation did. Also, caching pads in the pipeline can serve in the future as the foundation to provide a better API than the media graph walk to drivers to iterate over pads and entities in the pipeline. Note that the old media_pipeline_start/stop used the media graph walk API. The new version does not use the media graph walk API, but instead a new implementation. There are two reasons for not changing the graph walk: it proved to be rather difficult to change the graph walk to have the features implemented in this patch, and second, this keeps the backward compatibility of the graph walk as there are users of the graph walk API The long term plan is that all the existing code would be converted to use the new cached pipeline, thus allowing us to remove the graph walk. Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@kernel.org>
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The doc talks about streams and pipelines, but doesn't really define them. This is an attempt to define them according to my understanding. Signed-off-by:
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- Sep 19, 2022
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Andy Shevchenko authored
The devm_of_pwm_get() has recently lost its single user, drop the dead API as well. Note, the new code should use either plain pwm_get() or managed devm_pwm_get() or devm_fwnode_pwm_get() APIs. Signed-off-by:
Guenter Roeck <linux@roeck-us.net>
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- Sep 01, 2022
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Christoph Hellwig authored
devm_ioremap_np has never been used anywhere since it was added in early 2021, so remove it. Signed-off-by:
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- Aug 29, 2022
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The term 'videobuf' typically refers to the old videobuf version 1 framework. Avoid using this word in drivers that are converted to vb2. Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
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