October 2020 - Alsa-devel - mailman.alsa-project.org

[PATCH v6 23/80] docs: get rid of :c:type explicit declarations for structs
by Mauro Carvalho Chehab 13 Oct '20

13 Oct '20

The :c:type:`foo` only works properly with structs before Sphinx 3.x. On Sphinx 3.x, structs should now be declared using the .. c:struct, and referenced via :c:struct tag. As we now have the automarkup.py macro, that automatically convert: struct foo into cross-references, let's get rid of that, solving several warnings when building docs with Sphinx 3.x. Reviewed-by: André Almeida <andrealmeid(a)collabora.com> # blk-mq.rst Reviewed-by: Takashi Iwai <tiwai(a)suse.de> # sound Reviewed-by: Mike Rapoport <rppt(a)linux.ibm.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org> --- Documentation/block/blk-mq.rst | 8 +++---- Documentation/block/inline-encryption.rst | 8 +++---- Documentation/driver-api/fpga/fpga-bridge.rst | 4 ++-- Documentation/driver-api/fpga/fpga-mgr.rst | 4 ++-- Documentation/driver-api/fpga/fpga-region.rst | 2 +- Documentation/driver-api/iio/buffers.rst | 2 +- Documentation/driver-api/iio/core.rst | 6 ++--- Documentation/driver-api/iio/hw-consumer.rst | 2 +- .../driver-api/iio/triggered-buffers.rst | 2 +- Documentation/driver-api/iio/triggers.rst | 4 ++-- .../driver-api/media/dtv-frontend.rst | 4 ++-- Documentation/driver-api/media/mc-core.rst | 24 +++++++++---------- .../driver-api/media/v4l2-controls.rst | 2 +- Documentation/driver-api/media/v4l2-dev.rst | 8 +++---- .../driver-api/media/v4l2-device.rst | 6 ++--- Documentation/driver-api/media/v4l2-event.rst | 10 ++++---- Documentation/driver-api/media/v4l2-fh.rst | 16 ++++++------- .../driver-api/media/v4l2-subdev.rst | 2 +- Documentation/driver-api/regulator.rst | 4 ++-- Documentation/driver-api/usb/URB.rst | 2 +- Documentation/driver-api/usb/gadget.rst | 10 ++++---- Documentation/driver-api/usb/hotplug.rst | 2 +- Documentation/filesystems/fscrypt.rst | 14 +++++------ Documentation/filesystems/fsverity.rst | 2 +- Documentation/sound/designs/tracepoints.rst | 22 ++++++++--------- Documentation/sphinx/parse-headers.pl | 2 +- Documentation/vm/ksm.rst | 2 +- Documentation/vm/memory-model.rst | 6 ++--- mm/ksm.c | 2 +- mm/memblock.c | 4 ++-- 30 files changed, 93 insertions(+), 93 deletions(-) diff --git a/Documentation/block/blk-mq.rst b/Documentation/block/blk-mq.rst index 88c56afcb070..86a632af02b0 100644 --- a/Documentation/block/blk-mq.rst +++ b/Documentation/block/blk-mq.rst @@ -63,10 +63,10 @@ Software staging queues ~~~~~~~~~~~~~~~~~~~~~~~ The block IO subsystem adds requests in the software staging queues -(represented by struct :c:type:`blk_mq_ctx`) in case that they weren't sent +(represented by struct blk_mq_ctx) in case that they weren't sent directly to the driver. A request is one or more BIOs. They arrived at the -block layer through the data structure struct :c:type:`bio`. The block layer -will then build a new structure from it, the struct :c:type:`request` that will +block layer through the data structure struct bio. The block layer +will then build a new structure from it, the struct request that will be used to communicate with the device driver. Each queue has its own lock and the number of queues is defined by a per-CPU or per-node basis. @@ -102,7 +102,7 @@ hardware queue will be drained in sequence according to their mapping. Hardware dispatch queues ~~~~~~~~~~~~~~~~~~~~~~~~ -The hardware queue (represented by struct :c:type:`blk_mq_hw_ctx`) is a struct +The hardware queue (represented by struct blk_mq_hw_ctx) is a struct used by device drivers to map the device submission queues (or device DMA ring buffer), and are the last step of the block layer submission code before the low level device driver taking ownership of the request. To run this queue, the diff --git a/Documentation/block/inline-encryption.rst b/Documentation/block/inline-encryption.rst index 354817b80887..e75151e467d3 100644 --- a/Documentation/block/inline-encryption.rst +++ b/Documentation/block/inline-encryption.rst @@ -52,7 +52,7 @@ Constraints and notes Design ====== -We add a :c:type:`struct bio_crypt_ctx` to :c:type:`struct bio` that can +We add a struct bio_crypt_ctx to struct bio that can represent an encryption context, because we need to be able to pass this encryption context from the upper layers (like the fs layer) to the device driver to act upon. @@ -85,7 +85,7 @@ blk-mq changes, other block layer changes and blk-crypto-fallback ================================================================= We add a pointer to a ``bi_crypt_context`` and ``keyslot`` to -:c:type:`struct request`. These will be referred to as the ``crypto fields`` +struct request. These will be referred to as the ``crypto fields`` for the request. This ``keyslot`` is the keyslot into which the ``bi_crypt_context`` has been programmed in the KSM of the ``request_queue`` that this request is being sent to. @@ -118,7 +118,7 @@ of the algorithm being used adheres to spec and functions correctly). If a ``request queue``'s inline encryption hardware claimed to support the encryption context specified with a bio, then it will not be handled by the ``blk-crypto-fallback``. We will eventually reach a point in blk-mq when a -:c:type:`struct request` needs to be allocated for that bio. At that point, +struct request needs to be allocated for that bio. At that point, blk-mq tries to program the encryption context into the ``request_queue``'s keyslot_manager, and obtain a keyslot, which it stores in its newly added ``keyslot`` field. This keyslot is released when the request is completed. @@ -188,7 +188,7 @@ keyslots supported by the hardware. The device driver also needs to tell the KSM how to actually manipulate the IE hardware in the device to do things like programming the crypto key into the IE hardware into a particular keyslot. All this is achieved through the -:c:type:`struct blk_ksm_ll_ops` field in the KSM that the device driver +struct blk_ksm_ll_ops field in the KSM that the device driver must fill up after initing the ``blk_keyslot_manager``. The KSM also handles runtime power management for the device when applicable diff --git a/Documentation/driver-api/fpga/fpga-bridge.rst b/Documentation/driver-api/fpga/fpga-bridge.rst index ccd677ba7d76..198aadafd3e7 100644 --- a/Documentation/driver-api/fpga/fpga-bridge.rst +++ b/Documentation/driver-api/fpga/fpga-bridge.rst @@ -4,8 +4,8 @@ FPGA Bridge API to implement a new FPGA bridge ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -* struct :c:type:`fpga_bridge` — The FPGA Bridge structure -* struct :c:type:`fpga_bridge_ops` — Low level Bridge driver ops +* struct fpga_bridge — The FPGA Bridge structure +* struct fpga_bridge_ops — Low level Bridge driver ops * devm_fpga_bridge_create() — Allocate and init a bridge struct * fpga_bridge_register() — Register a bridge * fpga_bridge_unregister() — Unregister a bridge diff --git a/Documentation/driver-api/fpga/fpga-mgr.rst b/Documentation/driver-api/fpga/fpga-mgr.rst index af5382af1379..22f7885b32c9 100644 --- a/Documentation/driver-api/fpga/fpga-mgr.rst +++ b/Documentation/driver-api/fpga/fpga-mgr.rst @@ -102,8 +102,8 @@ API for implementing a new FPGA Manager driver ---------------------------------------------- * ``fpga_mgr_states`` — Values for :c:member:`fpga_manager->state`. -* struct :c:type:`fpga_manager` — the FPGA manager struct -* struct :c:type:`fpga_manager_ops` — Low level FPGA manager driver ops +* struct fpga_manager — the FPGA manager struct +* struct fpga_manager_ops — Low level FPGA manager driver ops * devm_fpga_mgr_create() — Allocate and init a manager struct * fpga_mgr_register() — Register an FPGA manager * fpga_mgr_unregister() — Unregister an FPGA manager diff --git a/Documentation/driver-api/fpga/fpga-region.rst b/Documentation/driver-api/fpga/fpga-region.rst index 31118a8ba218..3e52be7e2968 100644 --- a/Documentation/driver-api/fpga/fpga-region.rst +++ b/Documentation/driver-api/fpga/fpga-region.rst @@ -45,7 +45,7 @@ An example of usage can be seen in the probe function of [#f2]_. API to add a new FPGA region ---------------------------- -* struct :c:type:`fpga_region` — The FPGA region struct +* struct fpga_region — The FPGA region struct * devm_fpga_region_create() — Allocate and init a region struct * fpga_region_register() — Register an FPGA region * fpga_region_unregister() — Unregister an FPGA region diff --git a/Documentation/driver-api/iio/buffers.rst b/Documentation/driver-api/iio/buffers.rst index dd64c9c5fb1e..3ddebddc02ca 100644 --- a/Documentation/driver-api/iio/buffers.rst +++ b/Documentation/driver-api/iio/buffers.rst @@ -2,7 +2,7 @@ Buffers ======= -* struct :c:type:`iio_buffer` — general buffer structure +* struct iio_buffer — general buffer structure * :c:func:`iio_validate_scan_mask_onehot` — Validates that exactly one channel is selected * :c:func:`iio_buffer_get` — Grab a reference to the buffer diff --git a/Documentation/driver-api/iio/core.rst b/Documentation/driver-api/iio/core.rst index 51b21e002396..715cf29482a1 100644 --- a/Documentation/driver-api/iio/core.rst +++ b/Documentation/driver-api/iio/core.rst @@ -10,7 +10,7 @@ applications manipulating sensors. The implementation can be found under Industrial I/O Devices ---------------------- -* struct :c:type:`iio_dev` - industrial I/O device +* struct iio_dev - industrial I/O device * iio_device_alloc() - allocate an :c:type:`iio_dev` from a driver * iio_device_free() - free an :c:type:`iio_dev` from a driver * iio_device_register() - register a device with the IIO subsystem @@ -66,7 +66,7 @@ Common attributes are: IIO device channels =================== -struct :c:type:`iio_chan_spec` - specification of a single channel +struct iio_chan_spec - specification of a single channel An IIO device channel is a representation of a data channel. An IIO device can have one or multiple channels. For example: @@ -77,7 +77,7 @@ have one or multiple channels. For example: * an accelerometer can have up to 3 channels representing acceleration on X, Y and Z axes. -An IIO channel is described by the struct :c:type:`iio_chan_spec`. +An IIO channel is described by the struct iio_chan_spec. A thermometer driver for the temperature sensor in the example above would have to describe its channel as follows:: diff --git a/Documentation/driver-api/iio/hw-consumer.rst b/Documentation/driver-api/iio/hw-consumer.rst index 819fb9edc005..76133a3796f2 100644 --- a/Documentation/driver-api/iio/hw-consumer.rst +++ b/Documentation/driver-api/iio/hw-consumer.rst @@ -8,7 +8,7 @@ software buffer for data. The implementation can be found under :file:`drivers/iio/buffer/hw-consumer.c` -* struct :c:type:`iio_hw_consumer` — Hardware consumer structure +* struct iio_hw_consumer — Hardware consumer structure * :c:func:`iio_hw_consumer_alloc` — Allocate IIO hardware consumer * :c:func:`iio_hw_consumer_free` — Free IIO hardware consumer * :c:func:`iio_hw_consumer_enable` — Enable IIO hardware consumer diff --git a/Documentation/driver-api/iio/triggered-buffers.rst b/Documentation/driver-api/iio/triggered-buffers.rst index 0db12660cc90..417555dbbdf4 100644 --- a/Documentation/driver-api/iio/triggered-buffers.rst +++ b/Documentation/driver-api/iio/triggered-buffers.rst @@ -10,7 +10,7 @@ IIO triggered buffer setup * :c:func:`iio_triggered_buffer_setup` — Setup triggered buffer and pollfunc * :c:func:`iio_triggered_buffer_cleanup` — Free resources allocated by :c:func:`iio_triggered_buffer_setup` -* struct :c:type:`iio_buffer_setup_ops` — buffer setup related callbacks +* struct iio_buffer_setup_ops — buffer setup related callbacks A typical triggered buffer setup looks like this:: diff --git a/Documentation/driver-api/iio/triggers.rst b/Documentation/driver-api/iio/triggers.rst index dfd7ba3eabde..288625e40672 100644 --- a/Documentation/driver-api/iio/triggers.rst +++ b/Documentation/driver-api/iio/triggers.rst @@ -2,7 +2,7 @@ Triggers ======== -* struct :c:type:`iio_trigger` — industrial I/O trigger device +* struct iio_trigger — industrial I/O trigger device * :c:func:`devm_iio_trigger_alloc` — Resource-managed iio_trigger_alloc * :c:func:`devm_iio_trigger_register` — Resource-managed iio_trigger_register iio_trigger_unregister @@ -63,7 +63,7 @@ Let's see a simple example of how to setup a trigger to be used by a driver:: IIO trigger ops =============== -* struct :c:type:`iio_trigger_ops` — operations structure for an iio_trigger. +* struct iio_trigger_ops — operations structure for an iio_trigger. Notice that a trigger has a set of operations attached: diff --git a/Documentation/driver-api/media/dtv-frontend.rst b/Documentation/driver-api/media/dtv-frontend.rst index b362109bb131..91f77fe58e83 100644 --- a/Documentation/driver-api/media/dtv-frontend.rst +++ b/Documentation/driver-api/media/dtv-frontend.rst @@ -125,7 +125,7 @@ responsible for tuning the device. It supports multiple algorithms to detect a channel, as defined at enum :c:func:`dvbfe_algo`. The algorithm to be used is obtained via ``.get_frontend_algo``. If the driver -doesn't fill its field at struct :c:type:`dvb_frontend_ops`, it will default to +doesn't fill its field at struct dvb_frontend_ops, it will default to ``DVBFE_ALGO_SW``, meaning that the dvb-core will do a zigzag when tuning, e. g. it will try first to use the specified center frequency ``f``, then, it will do ``f`` + |delta|, ``f`` - |delta|, ``f`` + 2 x |delta|, @@ -140,7 +140,7 @@ define a ``.get_frontend_algo`` function that would return ``DVBFE_ALGO_HW``. a third type (``DVBFE_ALGO_CUSTOM``), in order to allow the driver to define its own hardware-assisted algorithm. Very few hardware need to use it nowadays. Using ``DVBFE_ALGO_CUSTOM`` require to provide other - function callbacks at struct :c:type:`dvb_frontend_ops`. + function callbacks at struct dvb_frontend_ops. Attaching frontend driver to the bridge driver ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/Documentation/driver-api/media/mc-core.rst b/Documentation/driver-api/media/mc-core.rst index 05bba0b61748..57b5bbba944e 100644 --- a/Documentation/driver-api/media/mc-core.rst +++ b/Documentation/driver-api/media/mc-core.rst @@ -36,7 +36,7 @@ pad to a sink pad. Media device ^^^^^^^^^^^^ -A media device is represented by a struct :c:type:`media_device` +A media device is represented by a struct media_device instance, defined in ``include/media/media-device.h``. Allocation of the structure is handled by the media device driver, usually by embedding the :c:type:`media_device` instance in a larger driver-specific @@ -49,7 +49,7 @@ and unregistered by calling :c:func:`media_device_unregister()`. Entities ^^^^^^^^ -Entities are represented by a struct :c:type:`media_entity` +Entities are represented by a struct media_entity instance, defined in ``include/media/media-entity.h``. The structure is usually embedded into a higher-level structure, such as :c:type:`v4l2_subdev` or :c:type:`video_device` @@ -67,10 +67,10 @@ Interfaces ^^^^^^^^^^ Interfaces are represented by a -struct :c:type:`media_interface` instance, defined in +struct media_interface instance, defined in ``include/media/media-entity.h``. Currently, only one type of interface is defined: a device node. Such interfaces are represented by a -struct :c:type:`media_intf_devnode`. +struct media_intf_devnode. Drivers initialize and create device node interfaces by calling :c:func:`media_devnode_create()` @@ -79,7 +79,7 @@ and remove them by calling: Pads ^^^^ -Pads are represented by a struct :c:type:`media_pad` instance, +Pads are represented by a struct media_pad instance, defined in ``include/media/media-entity.h``. Each entity stores its pads in a pads array managed by the entity driver. Drivers usually embed the array in a driver-specific structure. @@ -87,8 +87,8 @@ a driver-specific structure. Pads are identified by their entity and their 0-based index in the pads array. -Both information are stored in the struct :c:type:`media_pad`, -making the struct :c:type:`media_pad` pointer the canonical way +Both information are stored in the struct media_pad, +making the struct media_pad pointer the canonical way to store and pass link references. Pads have flags that describe the pad capabilities and state. @@ -104,7 +104,7 @@ Pads have flags that describe the pad capabilities and state. Links ^^^^^ -Links are represented by a struct :c:type:`media_link` instance, +Links are represented by a struct media_link instance, defined in ``include/media/media-entity.h``. There are two types of links: **1. pad to pad links**: @@ -187,7 +187,7 @@ Use count and power handling Due to the wide differences between drivers regarding power management needs, the media controller does not implement power management. However, -the struct :c:type:`media_entity` includes a ``use_count`` +the struct media_entity includes a ``use_count`` field that media drivers can use to track the number of users of every entity for power management needs. @@ -213,11 +213,11 @@ prevent link states from being modified during streaming by calling The function will mark all entities connected to the given entity through enabled links, either directly or indirectly, as streaming. -The struct :c:type:`media_pipeline` instance pointed to by +The struct media_pipeline instance pointed to by the pipe argument will be stored in every entity in the pipeline. -Drivers should embed the struct :c:type:`media_pipeline` +Drivers should embed the struct media_pipeline in higher-level pipeline structures and can then access the -pipeline through the struct :c:type:`media_entity` +pipeline through the struct media_entity pipe field. Calls to :c:func:`media_pipeline_start()` can be nested. diff --git a/Documentation/driver-api/media/v4l2-controls.rst b/Documentation/driver-api/media/v4l2-controls.rst index 5129019afb49..77f42ea3bac7 100644 --- a/Documentation/driver-api/media/v4l2-controls.rst +++ b/Documentation/driver-api/media/v4l2-controls.rst @@ -27,7 +27,7 @@ V4L2 specification with respect to controls in a central place. And to make life as easy as possible for the driver developer. Note that the control framework relies on the presence of a struct -:c:type:`v4l2_device` for V4L2 drivers and struct :c:type:`v4l2_subdev` for +:c:type:`v4l2_device` for V4L2 drivers and struct v4l2_subdev for sub-device drivers. diff --git a/Documentation/driver-api/media/v4l2-dev.rst b/Documentation/driver-api/media/v4l2-dev.rst index 63c064837c00..666330af31ed 100644 --- a/Documentation/driver-api/media/v4l2-dev.rst +++ b/Documentation/driver-api/media/v4l2-dev.rst @@ -67,7 +67,7 @@ You should also set these fields of :c:type:`video_device`: file operation is called this lock will be taken by the core and released afterwards. See the next section for more details. -- :c:type:`video_device`->queue: a pointer to the struct :c:type:`vb2_queue` +- :c:type:`video_device`->queue: a pointer to the struct vb2_queue associated with this device node. If queue is not ``NULL``, and queue->lock is not ``NULL``, then queue->lock is used for the queuing ioctls (``VIDIOC_REQBUFS``, ``CREATE_BUFS``, @@ -81,7 +81,7 @@ You should also set these fields of :c:type:`video_device`: - :c:type:`video_device`->prio: keeps track of the priorities. Used to implement ``VIDIOC_G_PRIORITY`` and ``VIDIOC_S_PRIORITY``. - If left to ``NULL``, then it will use the struct :c:type:`v4l2_prio_state` + If left to ``NULL``, then it will use the struct v4l2_prio_state in :c:type:`v4l2_device`. If you want to have a separate priority state per (group of) device node(s), then you can point it to your own struct :c:type:`v4l2_prio_state`. @@ -95,7 +95,7 @@ You should also set these fields of :c:type:`video_device`: but it is used by both a raw video PCI device (cx8800) and a MPEG PCI device (cx8802). Since the :c:type:`v4l2_device` cannot be associated with two PCI devices at the same time it is setup without a parent device. But when the - struct :c:type:`video_device` is initialized you **do** know which parent + struct video_device is initialized you **do** know which parent PCI device to use and so you set ``dev_device`` to the correct PCI device. If you use :c:type:`v4l2_ioctl_ops`, then you should set @@ -138,7 +138,7 @@ ioctls and locking ------------------ The V4L core provides optional locking services. The main service is the -lock field in struct :c:type:`video_device`, which is a pointer to a mutex. +lock field in struct video_device, which is a pointer to a mutex. If you set this pointer, then that will be used by unlocked_ioctl to serialize all ioctls. diff --git a/Documentation/driver-api/media/v4l2-device.rst b/Documentation/driver-api/media/v4l2-device.rst index 5e25bf182c18..7bd9c45f551b 100644 --- a/Documentation/driver-api/media/v4l2-device.rst +++ b/Documentation/driver-api/media/v4l2-device.rst @@ -3,7 +3,7 @@ V4L2 device instance -------------------- -Each device instance is represented by a struct :c:type:`v4l2_device`. +Each device instance is represented by a struct v4l2_device. Very simple devices can just allocate this struct, but most of the time you would embed this struct inside a larger struct. @@ -18,9 +18,9 @@ dev->driver_data field is ``NULL``, it will be linked to Drivers that want integration with the media device framework need to set dev->driver_data manually to point to the driver-specific device structure -that embed the struct :c:type:`v4l2_device` instance. This is achieved by a +that embed the struct v4l2_device instance. This is achieved by a ``dev_set_drvdata()`` call before registering the V4L2 device instance. -They must also set the struct :c:type:`v4l2_device` mdev field to point to a +They must also set the struct v4l2_device mdev field to point to a properly initialized and registered :c:type:`media_device` instance. If :c:type:`v4l2_dev <v4l2_device>`\ ->name is empty then it will be set to a diff --git a/Documentation/driver-api/media/v4l2-event.rst b/Documentation/driver-api/media/v4l2-event.rst index a4b7ae2b94d8..5b8254eba7da 100644 --- a/Documentation/driver-api/media/v4l2-event.rst +++ b/Documentation/driver-api/media/v4l2-event.rst @@ -44,18 +44,18 @@ such objects. So to summarize: -- struct :c:type:`v4l2_fh` has two lists: one of the ``subscribed`` events, +- struct v4l2_fh has two lists: one of the ``subscribed`` events, and one of the ``available`` events. -- struct :c:type:`v4l2_subscribed_event` has a ringbuffer of raised +- struct v4l2_subscribed_event has a ringbuffer of raised (pending) events of that particular type. -- If struct :c:type:`v4l2_subscribed_event` is associated with a specific +- If struct v4l2_subscribed_event is associated with a specific object, then that object will have an internal list of - struct :c:type:`v4l2_subscribed_event` so it knows who subscribed an + struct v4l2_subscribed_event so it knows who subscribed an event to that object. -Furthermore, the internal struct :c:type:`v4l2_subscribed_event` has +Furthermore, the internal struct v4l2_subscribed_event has ``merge()`` and ``replace()`` callbacks which drivers can set. These callbacks are called when a new event is raised and there is no more room. diff --git a/Documentation/driver-api/media/v4l2-fh.rst b/Documentation/driver-api/media/v4l2-fh.rst index 4c62b19af744..3eeaa8da0c9e 100644 --- a/Documentation/driver-api/media/v4l2-fh.rst +++ b/Documentation/driver-api/media/v4l2-fh.rst @@ -3,11 +3,11 @@ V4L2 File handlers ------------------ -struct :c:type:`v4l2_fh` provides a way to easily keep file handle specific +struct v4l2_fh provides a way to easily keep file handle specific data that is used by the V4L2 framework. .. attention:: - New drivers must use struct :c:type:`v4l2_fh` + New drivers must use struct v4l2_fh since it is also used to implement priority handling (:ref:`VIDIOC_G_PRIORITY`). @@ -16,11 +16,11 @@ whether a driver uses :c:type:`v4l2_fh` as its ``file->private_data`` pointer by testing the ``V4L2_FL_USES_V4L2_FH`` bit in :c:type:`video_device`->flags. This bit is set whenever :c:func:`v4l2_fh_init` is called. -struct :c:type:`v4l2_fh` is allocated as a part of the driver's own file handle +struct v4l2_fh is allocated as a part of the driver's own file handle structure and ``file->private_data`` is set to it in the driver's ``open()`` function by the driver. -In many cases the struct :c:type:`v4l2_fh` will be embedded in a larger +In many cases the struct v4l2_fh will be embedded in a larger structure. In that case you should call: #) :c:func:`v4l2_fh_init` and :c:func:`v4l2_fh_add` in ``open()`` @@ -102,18 +102,18 @@ Below is a short description of the :c:type:`v4l2_fh` functions used: memory can be freed. -If struct :c:type:`v4l2_fh` is not embedded, then you can use these helper functions: +If struct v4l2_fh is not embedded, then you can use these helper functions: :c:func:`v4l2_fh_open <v4l2_fh_open>` (struct file \*filp) -- This allocates a struct :c:type:`v4l2_fh`, initializes it and adds it to - the struct :c:type:`video_device` associated with the file struct. +- This allocates a struct v4l2_fh, initializes it and adds it to + the struct video_device associated with the file struct. :c:func:`v4l2_fh_release <v4l2_fh_release>` (struct file \*filp) -- This deletes it from the struct :c:type:`video_device` associated with the +- This deletes it from the struct video_device associated with the file struct, uninitialised the :c:type:`v4l2_fh` and frees it. These two functions can be plugged into the v4l2_file_operation's ``open()`` diff --git a/Documentation/driver-api/media/v4l2-subdev.rst b/Documentation/driver-api/media/v4l2-subdev.rst index 6248ea99e979..bb5b1a7cdfd9 100644 --- a/Documentation/driver-api/media/v4l2-subdev.rst +++ b/Documentation/driver-api/media/v4l2-subdev.rst @@ -110,7 +110,7 @@ pads: err = media_entity_pads_init(&sd->entity, npads, pads); The pads array must have been previously initialized. There is no need to -manually set the struct :c:type:`media_entity` function and name fields, but the +manually set the struct media_entity function and name fields, but the revision field must be initialized if needed. A reference to the entity will be automatically acquired/released when the diff --git a/Documentation/driver-api/regulator.rst b/Documentation/driver-api/regulator.rst index 520da0a5251d..b43c78eb24d8 100644 --- a/Documentation/driver-api/regulator.rst +++ b/Documentation/driver-api/regulator.rst @@ -116,7 +116,7 @@ core, providing operations structures to the core. A notifier interface allows error conditions to be reported to the core. Registration should be triggered by explicit setup done by the platform, -supplying a struct :c:type:`regulator_init_data` for the regulator +supplying a struct regulator_init_data for the regulator containing constraint and supply information. Machine interface @@ -144,7 +144,7 @@ a given system, for example supporting higher supply voltages than the consumers are rated for. This is done at driver registration time` by providing a -struct :c:type:`regulation_constraints`. +struct regulation_constraints. The constraints may also specify an initial configuration for the regulator in the constraints, which is particularly useful for use with diff --git a/Documentation/driver-api/usb/URB.rst b/Documentation/driver-api/usb/URB.rst index 1e4abc896a0d..a182c0f5e38a 100644 --- a/Documentation/driver-api/usb/URB.rst +++ b/Documentation/driver-api/usb/URB.rst @@ -47,7 +47,7 @@ called USB Request Block, or URB for short. The URB structure ================= -Some of the fields in struct :c:type:`urb` are:: +Some of the fields in struct urb are:: struct urb { diff --git a/Documentation/driver-api/usb/gadget.rst b/Documentation/driver-api/usb/gadget.rst index 3e8a3809c0b8..09396edd6131 100644 --- a/Documentation/driver-api/usb/gadget.rst +++ b/Documentation/driver-api/usb/gadget.rst @@ -176,9 +176,9 @@ Kernel Mode Gadget API Gadget drivers declare themselves through a struct :c:type:`usb_gadget_driver`, which is responsible for most parts of enumeration -for a struct :c:type:`usb_gadget`. The response to a set_configuration usually -involves enabling one or more of the struct :c:type:`usb_ep` objects exposed by -the gadget, and submitting one or more struct :c:type:`usb_request` buffers to +for a struct usb_gadget. The response to a set_configuration usually +involves enabling one or more of the struct usb_ep objects exposed by +the gadget, and submitting one or more struct usb_request buffers to transfer data. Understand those four data types, and their operations, and you will understand how this API works. @@ -339,8 +339,8 @@ multi-configuration devices (also more than one function, but not necessarily sharing a given configuration). There is however an optional framework which makes it easier to reuse and combine functions. -Devices using this framework provide a struct :c:type:`usb_composite_driver`, -which in turn provides one or more struct :c:type:`usb_configuration` +Devices using this framework provide a struct usb_composite_driver, +which in turn provides one or more struct usb_configuration instances. Each such configuration includes at least one struct :c:type:`usb_function`, which packages a user visible role such as "network link" or "mass storage device". Management functions may also exist, diff --git a/Documentation/driver-api/usb/hotplug.rst b/Documentation/driver-api/usb/hotplug.rst index 79663e653ca1..c1e13107c50e 100644 --- a/Documentation/driver-api/usb/hotplug.rst +++ b/Documentation/driver-api/usb/hotplug.rst @@ -122,7 +122,7 @@ and their quirks, might have a MODULE_DEVICE_TABLE like this:: Most USB device drivers should pass these tables to the USB subsystem as well as to the module management subsystem. Not all, though: some driver frameworks connect using interfaces layered over USB, and so they won't -need such a struct :c:type:`usb_driver`. +need such a struct usb_driver. Drivers that connect directly to the USB subsystem should be declared something like this:: diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst index 423c5a0daf45..4f858b38a412 100644 --- a/Documentation/filesystems/fscrypt.rst +++ b/Documentation/filesystems/fscrypt.rst @@ -437,7 +437,7 @@ FS_IOC_SET_ENCRYPTION_POLICY The FS_IOC_SET_ENCRYPTION_POLICY ioctl sets an encryption policy on an empty directory or verifies that a directory or regular file already has the specified encryption policy. It takes in a pointer to a -:c:type:`struct fscrypt_policy_v1` or a :c:type:`struct +struct fscrypt_policy_v1 or a :c:type:`struct fscrypt_policy_v2`, defined as follows:: #define FSCRYPT_POLICY_V1 0 @@ -508,7 +508,7 @@ This structure must be initialized as follows: replaced with ``master_key_identifier``, which is longer and cannot be arbitrarily chosen. Instead, the key must first be added using `FS_IOC_ADD_ENCRYPTION_KEY`_. Then, the ``key_spec.u.identifier`` - the kernel returned in the :c:type:`struct fscrypt_add_key_arg` must + the kernel returned in the struct fscrypt_add_key_arg must be used as the ``master_key_identifier`` in the :c:type:`struct fscrypt_policy_v2`. @@ -590,7 +590,7 @@ FS_IOC_GET_ENCRYPTION_POLICY_EX The FS_IOC_GET_ENCRYPTION_POLICY_EX ioctl retrieves the encryption policy, if any, for a directory or regular file. No additional permissions are required beyond the ability to open the file. It -takes in a pointer to a :c:type:`struct fscrypt_get_policy_ex_arg`, +takes in a pointer to a struct fscrypt_get_policy_ex_arg, defined as follows:: struct fscrypt_get_policy_ex_arg { @@ -680,7 +680,7 @@ the filesystem, making all files on the filesystem which were encrypted using that key appear "unlocked", i.e. in plaintext form. It can be executed on any file or directory on the target filesystem, but using the filesystem's root directory is recommended. It takes in -a pointer to a :c:type:`struct fscrypt_add_key_arg`, defined as +a pointer to a struct fscrypt_add_key_arg, defined as follows:: struct fscrypt_add_key_arg { @@ -710,7 +710,7 @@ follows:: __u8 raw[]; }; -:c:type:`struct fscrypt_add_key_arg` must be zeroed, then initialized +struct fscrypt_add_key_arg must be zeroed, then initialized as follows: - If the key is being added for use by v1 encryption policies, then @@ -860,7 +860,7 @@ The FS_IOC_REMOVE_ENCRYPTION_KEY ioctl removes a claim to a master encryption key from the filesystem, and possibly removes the key itself. It can be executed on any file or directory on the target filesystem, but using the filesystem's root directory is recommended. -It takes in a pointer to a :c:type:`struct fscrypt_remove_key_arg`, +It takes in a pointer to a struct fscrypt_remove_key_arg, defined as follows:: struct fscrypt_remove_key_arg { @@ -1149,7 +1149,7 @@ Encryption context ------------------ An encryption policy is represented on-disk by a :c:type:`struct -fscrypt_context_v1` or a :c:type:`struct fscrypt_context_v2`. It is +fscrypt_context_v1` or a struct fscrypt_context_v2. It is up to individual filesystems to decide where to store it, but normally it would be stored in a hidden extended attribute. It should *not* be exposed by the xattr-related system calls such as getxattr() and diff --git a/Documentation/filesystems/fsverity.rst b/Documentation/filesystems/fsverity.rst index 6c8944f6f0f7..895e9711ed88 100644 --- a/Documentation/filesystems/fsverity.rst +++ b/Documentation/filesystems/fsverity.rst @@ -84,7 +84,7 @@ FS_IOC_ENABLE_VERITY -------------------- The FS_IOC_ENABLE_VERITY ioctl enables fs-verity on a file. It takes -in a pointer to a :c:type:`struct fsverity_enable_arg`, defined as +in a pointer to a struct fsverity_enable_arg, defined as follows:: struct fsverity_enable_arg { diff --git a/Documentation/sound/designs/tracepoints.rst b/Documentation/sound/designs/tracepoints.rst index 78bc5572f829..b0a7e3010187 100644 --- a/Documentation/sound/designs/tracepoints.rst +++ b/Documentation/sound/designs/tracepoints.rst @@ -34,20 +34,20 @@ substream. In this procedure, PCM hardware parameters are decided by interaction between applications and ALSA PCM core. Once decided, runtime of the PCM substream keeps the parameters. -The parameters are described in :c:type:`struct snd_pcm_hw_params`. This +The parameters are described in struct snd_pcm_hw_params. This structure includes several types of parameters. Applications set preferable value to these parameters, then execute ioctl(2) with SNDRV_PCM_IOCTL_HW_REFINE or SNDRV_PCM_IOCTL_HW_PARAMS. The former is used just for refining available set of parameters. The latter is used for an actual decision of the parameters. -The :c:type:`struct snd_pcm_hw_params` structure has below members: +The struct snd_pcm_hw_params structure has below members: ``flags`` Configurable. ALSA PCM core and some drivers handle this flag to select convenient parameters or change their behaviour. ``masks`` Configurable. This type of parameter is described in - :c:type:`struct snd_mask` and represent mask values. As of PCM protocol + struct snd_mask and represent mask values. As of PCM protocol v2.0.13, three types are defined. - SNDRV_PCM_HW_PARAM_ACCESS @@ -55,7 +55,7 @@ The :c:type:`struct snd_pcm_hw_params` structure has below members: - SNDRV_PCM_HW_PARAM_SUBFORMAT ``intervals`` Configurable. This type of parameter is described in - :c:type:`struct snd_interval` and represent values with a range. As of + struct snd_interval and represent values with a range. As of PCM protocol v2.0.13, twelve types are defined. - SNDRV_PCM_HW_PARAM_SAMPLE_BITS @@ -78,7 +78,7 @@ The :c:type:`struct snd_pcm_hw_params` structure has below members: are going to be changed. ``cmask`` Read-only. After returning from ioctl(2), buffer in user space for - :c:type:`struct snd_pcm_hw_params` includes result of each operation. + struct snd_pcm_hw_params includes result of each operation. This mask represents which mask/interval parameter is actually changed. ``info`` Read-only. This represents hardware/driver capabilities as bit flags @@ -110,10 +110,10 @@ The :c:type:`struct snd_pcm_hw_params` structure has below members: value to this parameter but some drivers intentionally set zero with a care of hardware design or data transmission protocol. -ALSA PCM core handles buffer of :c:type:`struct snd_pcm_hw_params` when +ALSA PCM core handles buffer of struct snd_pcm_hw_params when applications execute ioctl(2) with SNDRV_PCM_HW_REFINE or SNDRV_PCM_HW_PARAMS. Parameters in the buffer are changed according to -:c:type:`struct snd_pcm_hardware` and rules of constraints in the runtime. The +struct snd_pcm_hardware and rules of constraints in the runtime. The structure describes capabilities of handled hardware. The rules describes dependencies on which a parameter is decided according to several parameters. A rule has a callback function, and drivers can register arbitrary functions @@ -121,17 +121,17 @@ to compute the target parameter. ALSA PCM core registers some rules to the runtime as a default. Each driver can join in the interaction as long as it prepared for two stuffs -in a callback of :c:type:`struct snd_pcm_ops.open`. +in a callback of struct snd_pcm_ops.open. 1. In the callback, drivers are expected to change a member of - :c:type:`struct snd_pcm_hardware` type in the runtime, according to + struct snd_pcm_hardware type in the runtime, according to capacities of corresponding hardware. 2. In the same callback, drivers are also expected to register additional rules of constraints into the runtime when several parameters have dependencies due to hardware design. The driver can refers to result of the interaction in a callback of -:c:type:`struct snd_pcm_ops.hw_params`, however it should not change the +struct snd_pcm_ops.hw_params, however it should not change the content. Tracepoints in this category are designed to trace changes of the @@ -163,7 +163,7 @@ fields are different according to type of the parameter. For parameters of mask type, the fields represent hexadecimal dump of content of the parameter. For parameters of interval type, the fields represent values of each member of ``empty``, ``integer``, ``openmin``, ``min``, ``max``, ``openmax`` in -:c:type:`struct snd_interval` in this order. +struct snd_interval in this order. Tracepoints in drivers ====================== diff --git a/Documentation/sphinx/parse-headers.pl b/Documentation/sphinx/parse-headers.pl index 00a69aceff44..1910079f984f 100755 --- a/Documentation/sphinx/parse-headers.pl +++ b/Documentation/sphinx/parse-headers.pl @@ -110,7 +110,7 @@ while (<IN>) { ) { my $s = $1; - $structs{$s} = "struct :c:type:`$s`\\ "; + $structs{$s} = "struct $s\\ "; next; } } diff --git a/Documentation/vm/ksm.rst b/Documentation/vm/ksm.rst index d1b7270ad55c..9e37add068e6 100644 --- a/Documentation/vm/ksm.rst +++ b/Documentation/vm/ksm.rst @@ -26,7 +26,7 @@ tree. If a KSM page is shared between less than ``max_page_sharing`` VMAs, the node of the stable tree that represents such KSM page points to a -list of :c:type:`struct rmap_item` and the ``page->mapping`` of the +list of struct rmap_item and the ``page->mapping`` of the KSM page points to the stable tree node. When the sharing passes this threshold, KSM adds a second dimension to diff --git a/Documentation/vm/memory-model.rst b/Documentation/vm/memory-model.rst index 769449734573..9daadf9faba1 100644 --- a/Documentation/vm/memory-model.rst +++ b/Documentation/vm/memory-model.rst @@ -24,7 +24,7 @@ whether it is possible to manually override that default. although it is still in use by several architectures. All the memory models track the status of physical page frames using -:c:type:`struct page` arranged in one or more arrays. +struct page arranged in one or more arrays. Regardless of the selected memory model, there exists one-to-one mapping between the physical page frame number (PFN) and the @@ -111,7 +111,7 @@ maps for non-volatile memory devices and deferred initialization of the memory map for larger systems. The SPARSEMEM model presents the physical memory as a collection of -sections. A section is represented with :c:type:`struct mem_section` +sections. A section is represented with struct mem_section that contains `section_mem_map` that is, logically, a pointer to an array of struct pages. However, it is stored with some other magic that aids the sections management. The section size and maximal number @@ -172,7 +172,7 @@ management. The virtually mapped memory map allows storing `struct page` objects for persistent memory devices in pre-allocated storage on those -devices. This storage is represented with :c:type:`struct vmem_altmap` +devices. This storage is represented with struct vmem_altmap that is eventually passed to vmemmap_populate() through a long chain of function calls. The vmemmap_populate() implementation may use the `vmem_altmap` along with :c:func:`vmemmap_alloc_block_buf` helper to diff --git a/mm/ksm.c b/mm/ksm.c index 9afccc36dbd2..0960750bb316 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -81,7 +81,7 @@ * different KSM page copy of that content * * Internally, the regular nodes, "dups" and "chains" are represented - * using the same :c:type:`struct stable_node` structure. + * using the same struct stable_node structure. * * In addition to the stable tree, KSM uses a second data structure called the * unstable tree: this tree holds pointers to pages which have been found to diff --git a/mm/memblock.c b/mm/memblock.c index 45f198750be9..670216826940 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -48,12 +48,12 @@ * boot regardless of the possible restrictions and memory hot(un)plug; * the ``physmem`` type is only available on some architectures. * - * Each region is represented by :c:type:`struct memblock_region` that + * Each region is represented by struct memblock_region that * defines the region extents, its attributes and NUMA node id on NUMA * systems. Every memory type is described by the :c:type:`struct * memblock_type` which contains an array of memory regions along with * the allocator metadata. The "memory" and "reserved" types are nicely - * wrapped with :c:type:`struct memblock`. This structure is statically + * wrapped with struct memblock. This structure is statically * initialized at build time. The region arrays are initially sized to * %INIT_MEMBLOCK_REGIONS for "memory" and %INIT_MEMBLOCK_RESERVED_REGIONS * for "reserved". The region array for "physmem" is initially sized to -- 2.26.2

1 0

[PATCH] ASoC: fsl_spdif: Add support for higher sample rates
by Shengjiu Wang 13 Oct '20

13 Oct '20

Add 88200Hz and 176400Hz sample rates support for TX. Add 88200Hz, 176400Hz, 192000Hz sample rates support for RX. Signed-off-by: Shengjiu Wang <shengjiu.wang(a)nxp.com> Signed-off-by: Viorel Suman <viorel.suman(a)nxp.com> --- sound/soc/fsl/fsl_spdif.c | 16 +++++++++++++--- sound/soc/fsl/fsl_spdif.h | 9 ++++++++- 2 files changed, 21 insertions(+), 4 deletions(-) diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index b0f643fefe1e..f41496cf5b63 100644 --- a/sound/soc/fsl/fsl_spdif.c +++ b/sound/soc/fsl/fsl_spdif.c @@ -429,10 +429,18 @@ static int spdif_set_sample_rate(struct snd_pcm_substream *substream, rate = SPDIF_TXRATE_48000; csfs = IEC958_AES3_CON_FS_48000; break; + case 88200: + rate = SPDIF_TXRATE_88200; + csfs = IEC958_AES3_CON_FS_88200; + break; case 96000: rate = SPDIF_TXRATE_96000; csfs = IEC958_AES3_CON_FS_96000; break; + case 176400: + rate = SPDIF_TXRATE_176400; + csfs = IEC958_AES3_CON_FS_176400; + break; case 192000: rate = SPDIF_TXRATE_192000; csfs = IEC958_AES3_CON_FS_192000; @@ -827,7 +835,7 @@ static int fsl_spdif_rxrate_info(struct snd_kcontrol *kcontrol, uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 1; uinfo->value.integer.min = 16000; - uinfo->value.integer.max = 96000; + uinfo->value.integer.max = 192000; return 0; } @@ -1145,7 +1153,8 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv, struct clk *clk, u64 savesub, enum spdif_txrate index, bool round) { - static const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 }; + static const u32 rate[] = { 32000, 44100, 48000, 88200, 96000, 176400, + 192000, }; bool is_sysclk = clk_is_match(clk, spdif_priv->sysclk); u64 rate_ideal, rate_actual, sub; u32 arate; @@ -1205,7 +1214,8 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv, static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv, enum spdif_txrate index) { - static const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 }; + static const u32 rate[] = { 32000, 44100, 48000, 88200, 96000, 176400, + 192000, }; struct platform_device *pdev = spdif_priv->pdev; struct device *dev = &pdev->dev; u64 savesub = 100000, ret; diff --git a/sound/soc/fsl/fsl_spdif.h b/sound/soc/fsl/fsl_spdif.h index e6c61e07bc1a..d5f1dfd58740 100644 --- a/sound/soc/fsl/fsl_spdif.h +++ b/sound/soc/fsl/fsl_spdif.h @@ -163,7 +163,9 @@ enum spdif_txrate { SPDIF_TXRATE_32000 = 0, SPDIF_TXRATE_44100, SPDIF_TXRATE_48000, + SPDIF_TXRATE_88200, SPDIF_TXRATE_96000, + SPDIF_TXRATE_176400, SPDIF_TXRATE_192000, }; #define SPDIF_TXRATE_MAX (SPDIF_TXRATE_192000 + 1) @@ -177,15 +179,20 @@ enum spdif_txrate { #define FSL_SPDIF_RATES_PLAYBACK (SNDRV_PCM_RATE_32000 | \ SNDRV_PCM_RATE_44100 | \ SNDRV_PCM_RATE_48000 | \ + SNDRV_PCM_RATE_88200 | \ SNDRV_PCM_RATE_96000 | \ + SNDRV_PCM_RATE_176400 | \ SNDRV_PCM_RATE_192000) #define FSL_SPDIF_RATES_CAPTURE (SNDRV_PCM_RATE_16000 | \ SNDRV_PCM_RATE_32000 | \ SNDRV_PCM_RATE_44100 | \ SNDRV_PCM_RATE_48000 | \ + SNDRV_PCM_RATE_88200 | \ SNDRV_PCM_RATE_64000 | \ - SNDRV_PCM_RATE_96000) + SNDRV_PCM_RATE_96000 | \ + SNDRV_PCM_RATE_176400 | \ + SNDRV_PCM_RATE_192000) #define FSL_SPDIF_FORMATS_PLAYBACK (SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_3LE | \ -- 2.27.0

4 5

error(no sound) over boundary time [src/pcm/pcm_dshare.c]
by GitHub issues - opened 13 Oct '20

13 Oct '20

alsa-project/alsa-lib issue #84 was opened from syuuha: there is an issue when we use pcm_dshare over boundary time, eg. will be no sound after 12 hours [src/pcm/pcm_dshare.c] Line 114: [before] /* calculate the size to transfer */ size = dshare->appl_ptr - dshare->last_appl_ptr; [after] /* calculate the size to transfer */ if (dshare->appl_ptr < dshare->last_appl_ptr) size = dshare->appl_ptr + (pcm->boundary - dshare->last_appl_ptr); else size = dshare->appl_ptr - dshare->last_appl_ptr; Issue URL : https://github.com/alsa-project/alsa-lib/issues/84 Repository URL: https://github.com/alsa-project/alsa-lib

1 0

[PATCH v7 00/14] Add Allwinner H3/H5/H6/A64 HDMI audio
by Clément Péron 12 Oct '20

12 Oct '20

Hi, Just some minor changes compare to v6. As explain in v6 there is no more HDMI soundcard, I will try to introduce a dedicated Allwinner soundcard in a next series. Clément Change since v6: - move set_channel_cfg() in first position - convert return value to decimal Change since v5: - Drop HDMI simple soundcard - Collect Chen-Yu Tsai tags - Configure channels from 9 to 15. - Remove DMA RX for H3/H5 - Fix Documentation for H3/H5 Change since v4: - add more comment on get_wss() and set_channel_cfg() patch - merge soundcard and DAI HDMI patches Change since v3: - add Samuel Holland patch to reconfigure FIFO_TX_REG when suspend is enabled - readd inversion to H6 LRCK sun50i_h6_i2s_set_soc_fmt() - Fix get_wss() for sun4i - Add a commit to fix checkpatch warning Change since v2: - rebase on next-20200918 - drop revert LRCK polarity patch - readd simple-audio-card,frame-inversion in dts - Add patch for changing set_chan_cfg params Change since v1: - rebase on next-20200828 - add revert LRCK polarity - remove all simple-audio-card,frame-inversion in dts - add Ondrej patches for Orange Pi board - Add arm64 defconfig patch Clément Péron (6): ASoC: sun4i-i2s: Change set_chan_cfg() params ASoC: sun4i-i2s: Change get_sr() and get_wss() to be more explicit ASoC: sun4i-i2s: Fix sun8i volatile regs ASoC: sun4i-i2s: fix coding-style for callback definition arm64: defconfig: Enable Allwinner i2s driver dt-bindings: sound: sun4i-i2s: Document H3 with missing RX channel possibility Jernej Skrabec (3): ASoC: sun4i-i2s: Add support for H6 I2S dt-bindings: ASoC: sun4i-i2s: Add H6 compatible arm64: dts: allwinner: h6: Add I2S1 node Marcus Cooper (4): ASoC: sun4i-i2s: Set sign extend sample ASoc: sun4i-i2s: Add 20 and 24 bit support arm64: dts: allwinner: a64: Add I2S2 node arm: dts: sunxi: h3/h5: Add I2S2 node Samuel Holland (1): ASoC: sun4i-i2s: Fix setting of FIFO modes .../sound/allwinner,sun4i-a10-i2s.yaml | 6 +- arch/arm/boot/dts/sunxi-h3-h5.dtsi | 13 + arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 14 + arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 13 + arch/arm64/configs/defconfig | 1 + sound/soc/sunxi/sun4i-i2s.c | 376 +++++++++++++++--- 6 files changed, 368 insertions(+), 55 deletions(-) -- 2.25.1

2 15

[PATCH v2 00/13] ASoC: Intel: Remove obsolete solutions and components
by Cezary Rojewski 12 Oct '20

12 Oct '20

Follow up to catpt series as mentioned in: [PATCH v10 00/14] ASoC: Intel: Catpt - Lynx and Wildcat point https://www.spinics.net/lists/alsa-devel/msg116440.html As catpt is a direct replacement to sound/soc/intel/haswell, it leaves a lot of code redudant. The second legacy solution - baytrail - is deprecated for a long time by sound/soc/intel/atom with SOF flavor available too. This series addresses the redudancy and removes obsolete code. Along with the legacy solutions, all orphaned components are removed too. As a consequence, further cleanups are unlocked: sound/soc/intel/skylake becomes the sole user of processing code found in sound/soc/intel/common. Those are not part of this series. Changes in v2: - just a rebase so patch 04/13 applies cleanly - left the tags as no actual changes done in between Cezary Rojewski (13): ASoC: Intel: Remove haswell solution ASoC: Intel: Remove max98090 support for baytrail solution ASoC: Intel: Remove rt5640 support for baytrail solution ASoC: Intel: Remove baytrail solution ASoC: Intel: Remove SST ACPI component ASoC: Intel: Remove SST firmware components ASoC: Intel: Skylake: Unassign ram_read and read_write ops ASoC: Intel: Remove unused DSP operations ASoC: Intel: Remove unused DSP interface fields ASoC: Intel: Remove SST-legacy specific constants ASoC: Intel: Make atom components independent of sst-dsp ASoC: Intel: Remove sst_pdata structure ASoC: Intel: Remove sst_dsp_get_thread_context include/sound/soc-acpi-intel-match.h | 1 - include/trace/events/hswadsp.h | 385 --- sound/soc/intel/Kconfig | 26 - sound/soc/intel/Makefile | 1 - sound/soc/intel/atom/sst/sst.c | 1 - sound/soc/intel/atom/sst/sst.h | 7 + sound/soc/intel/atom/sst/sst_acpi.c | 1 - sound/soc/intel/atom/sst/sst_drv_interface.c | 3 - sound/soc/intel/atom/sst/sst_ipc.c | 1 - sound/soc/intel/atom/sst/sst_loader.c | 1 - sound/soc/intel/atom/sst/sst_pvt.c | 1 - sound/soc/intel/atom/sst/sst_stream.c | 1 - sound/soc/intel/baytrail/Makefile | 5 - sound/soc/intel/baytrail/sst-baytrail-dsp.c | 358 --- sound/soc/intel/baytrail/sst-baytrail-ipc.c | 772 ------ sound/soc/intel/baytrail/sst-baytrail-ipc.h | 64 - sound/soc/intel/baytrail/sst-baytrail-pcm.c | 459 ---- sound/soc/intel/boards/Kconfig | 25 - sound/soc/intel/boards/Makefile | 4 - sound/soc/intel/boards/byt-max98090.c | 182 -- sound/soc/intel/boards/byt-rt5640.c | 224 -- sound/soc/intel/boards/bytcht_es8316.c | 1 - sound/soc/intel/boards/bytcr_rt5640.c | 1 - sound/soc/intel/common/Makefile | 4 - .../intel/common/soc-acpi-intel-byt-match.c | 15 - sound/soc/intel/common/sst-acpi.c | 236 -- sound/soc/intel/common/sst-dsp-priv.h | 284 +-- sound/soc/intel/common/sst-dsp.c | 162 -- sound/soc/intel/common/sst-dsp.h | 222 -- sound/soc/intel/common/sst-firmware.c | 1273 ---------- sound/soc/intel/common/sst-ipc.c | 27 - sound/soc/intel/common/sst-ipc.h | 3 - sound/soc/intel/haswell/Makefile | 5 - sound/soc/intel/haswell/sst-haswell-dsp.c | 705 ------ sound/soc/intel/haswell/sst-haswell-ipc.c | 2222 ----------------- sound/soc/intel/haswell/sst-haswell-ipc.h | 527 ---- sound/soc/intel/haswell/sst-haswell-pcm.c | 1369 ---------- sound/soc/intel/skylake/bxt-sst.c | 2 - sound/soc/intel/skylake/cnl-sst.c | 4 +- sound/soc/intel/skylake/skl-sst-dsp.c | 2 +- sound/soc/intel/skylake/skl-sst-ipc.c | 2 +- sound/soc/intel/skylake/skl-sst.c | 2 - 42 files changed, 11 insertions(+), 9579 deletions(-) delete mode 100644 include/trace/events/hswadsp.h delete mode 100644 sound/soc/intel/baytrail/Makefile delete mode 100644 sound/soc/intel/baytrail/sst-baytrail-dsp.c delete mode 100644 sound/soc/intel/baytrail/sst-baytrail-ipc.c delete mode 100644 sound/soc/intel/baytrail/sst-baytrail-ipc.h delete mode 100644 sound/soc/intel/baytrail/sst-baytrail-pcm.c delete mode 100644 sound/soc/intel/boards/byt-max98090.c delete mode 100644 sound/soc/intel/boards/byt-rt5640.c delete mode 100644 sound/soc/intel/common/sst-acpi.c delete mode 100644 sound/soc/intel/common/sst-firmware.c delete mode 100644 sound/soc/intel/haswell/Makefile delete mode 100644 sound/soc/intel/haswell/sst-haswell-dsp.c delete mode 100644 sound/soc/intel/haswell/sst-haswell-ipc.c delete mode 100644 sound/soc/intel/haswell/sst-haswell-ipc.h delete mode 100644 sound/soc/intel/haswell/sst-haswell-pcm.c -- 2.17.1

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[PATCH 00/25] ASoC: sun8i-codec: support for AIF2 and AIF3
by Samuel Holland 12 Oct '20

12 Oct '20

This series adds support the other two AIFs present in the sun8i codec, which can be used for codec2codec DAI links. This series first cleans up the DAPM component driver so there is an organized place to put the new widgets. Then it fills out the DAI driver, removing assumptions that were made for AIF1 (16 bits, 2 channels, certain clock inversions). Some new logic is required to handle 3 DAIs and the ADC/DAC sharing the same clock. Finally, it adds the new DAIs, and hooks them up with DAPM widgets and routes per the hardware topology. To minimize the number of patches in this series, related device tree patches (increasing #sound-dai-cells, adding new DAI links) will be sent separately. Samuel Holland (25): ASoC: sun8i-codec: Set up clock tree at probe time ASoC: sun8i-codec: Swap module clock/reset dependencies ASoC: sun8i-codec: Sort DAPM controls, widgets, and routes ASoC: sun8i-codec: Consistently name DAPM widgets and routes ASoC: sun8i-codec: Correct DAPM widget types ASoC: sun8i-codec: Fix AIF widget channel references ASoC: sun8i-codec: Enable AIF mono/stereo control ASoC: sun8i-codec: Use snd_soc_dai_get_drvdata ASoC: sun8i-codec: Prepare to extend the DAI driver ASoC: sun8i-codec: Program format before clock inversion ASoC: sun8i-codec: Enable all supported clock inversions ASoC: sun8i-codec: Program the correct word size ASoC: sun8i-codec: Round up the LRCK divisor ASoC: sun8i-codec: Correct the BCLK divisor calculation ASoC: sun8i-codec: Support the TDM slot binding ASoC: sun8i-codec: Enforce symmetric DAI parameters ASoC: sun8i-codec: Enable all supported sample rates ASoC: sun8i-codec: Automatically set the system sample rate ASoC: sun8i-codec: Constrain to compatible sample rates ASoC: sun8i-codec: Protect the clock rate while streams are open ASoC: sun8i-codec: Require an exact BCLK divisor match ASoC: sun8i-codec: Enable all supported PCM formats ASoC: sun8i-codec: Generalize AIF clock control ASoC: sun8i-codec: Add a DAI, widgets, and routes for AIF2 ASoC: sun8i-codec: Add a DAI, widgets, and routes for AIF3 sound/soc/sunxi/sun8i-codec.c | 1135 ++++++++++++++++++++++++++------- 1 file changed, 894 insertions(+), 241 deletions(-) -- 2.26.2

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[PATCH v2] ALSA: hda: fix jack detection with Realtek codecs when in D3
by Kai Vehmanen 12 Oct '20

12 Oct '20

In case HDA controller becomes active, but codec is runtime suspended, jack detection is not successful and no interrupt is raised. This has been observed with multiple Realtek codecs and HDA controllers from different vendors. Bug does not occur if both codec and controller are active, or both are in suspend. Bug can be easily hit on desktop systems with no built-in speaker. The problem can be fixed by powering up the codec once after every controller runtime resume. Even if codec goes back to suspend later, the jack detection will continue to work. Add a flag to 'hda_codec' to describe codecs that require this flow from the controller driver. Modify __azx_runtime_resume() to use pm_request_resume() to make the intent clearer. Mark all Realtek codecs with the new forced_resume flag. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209379 Cc: Kailang Yang <kailang(a)realtek.com> Co-developed-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> Signed-off-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> Signed-off-by: Kai Vehmanen <kai.vehmanen(a)linux.intel.com> --- include/sound/hda_codec.h | 1 + sound/pci/hda/hda_intel.c | 14 ++++++++------ sound/pci/hda/patch_realtek.c | 1 + 3 files changed, 10 insertions(+), 6 deletions(-) v1->v2: - simplified the for_each_codec block as per feedback from Takashi - clarified commit message that bug occurs when controller is resumed (feedback from Pierre) - moved forced_resume setting from alc_pre_init to alc_alloc_spec which seems more appropriate and removed the inline comments as those seem out-of-place in patch_realtek (other drivers may use the flag as well) diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h index 0fea49bfc5e8..73827b7d17e0 100644 --- a/include/sound/hda_codec.h +++ b/include/sound/hda_codec.h @@ -253,6 +253,7 @@ struct hda_codec { unsigned int force_pin_prefix:1; /* Add location prefix */ unsigned int link_down_at_suspend:1; /* link down at runtime suspend */ unsigned int relaxed_resume:1; /* don't resume forcibly for jack */ + unsigned int forced_resume:1; /* forced resume for jack */ unsigned int mst_no_extra_pcms:1; /* no backup PCMs for DP-MST */ #ifdef CONFIG_PM diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 61e495187b1a..749b88090970 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1002,12 +1002,14 @@ static void __azx_runtime_resume(struct azx *chip, bool from_rt) azx_init_pci(chip); hda_intel_init_chip(chip, true); - if (status && from_rt) { - list_for_each_codec(codec, &chip->bus) - if (!codec->relaxed_resume && - (status & (1 << codec->addr))) - schedule_delayed_work(&codec->jackpoll_work, - codec->jackpoll_interval); + if (from_rt) { + list_for_each_codec(codec, &chip->bus) { + if (codec->relaxed_resume) + continue; + + if (codec->forced_resume || (status & (1 << codec->addr))) + pm_request_resume(hda_codec_dev(codec)); + } } /* power down again for link-controlled chips */ diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index f89506dffd5b..f2398721ac1e 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1150,6 +1150,7 @@ static int alc_alloc_spec(struct hda_codec *codec, hda_nid_t mixer_nid) codec->single_adc_amp = 1; /* FIXME: do we need this for all Realtek codec models? */ codec->spdif_status_reset = 1; + codec->forced_resume = 1; codec->patch_ops = alc_patch_ops; err = alc_codec_rename_from_preset(codec); -- 2.28.0

2 1

[bug report] ASoC: Intel: catpt: Firmware loading and context restore
by Dan Carpenter 12 Oct '20

12 Oct '20

Hello Cezary Rojewski, The patch a9aa6fb3eb6c: "ASoC: Intel: catpt: Firmware loading and context restore" from Sep 29, 2020, leads to the following static checker warning: sound/soc/intel/catpt/loader.c:654 catpt_first_boot_firmware() warn: consider using resource_size() here sound/soc/intel/catpt/loader.c 638 int catpt_first_boot_firmware(struct catpt_dev *cdev) 639 { 640 struct resource *res; 641 int ret; 642 643 ret = catpt_boot_firmware(cdev, false); 644 if (ret) { 645 dev_err(cdev->dev, "basefw boot failed: %d\n", ret); 646 return ret; 647 } 648 649 /* restrict FW Core dump area */ 650 __request_region(&cdev->dram, 0, 0x200, NULL, 0); 651 /* restrict entire area following BASE_FW - highest offset in DRAM */ 652 for (res = cdev->dram.child; res->sibling; res = res->sibling) 653 ; 654 __request_region(&cdev->dram, res->end + 1, 655 cdev->dram.end - res->end, NULL, 0); ^^^^^^^^^^^^^^^^^^^^^^^^^ It's been years since I have seen one of these warnings. Back in the day we used have have a lot of off by one warnings because resource_size() is supposed to be calculated as "end - start + 1". But here we are calculating "dram.end - res->end" so I'm not sure if the math is correct or not. This is very new code so hopefully you know the answer off the top of your head? 656 657 ret = catpt_ipc_get_mixer_stream_info(cdev, &cdev->mixer); 658 if (ret) 659 return CATPT_IPC_ERROR(ret); 660 661 ret = catpt_arm_stream_templates(cdev); 662 if (ret) { 663 dev_err(cdev->dev, "arm templates failed: %d\n", ret); 664 return ret; 665 } 666 667 /* update dram pg for scratch and restricted regions */ 668 catpt_dsp_update_srampge(cdev, &cdev->dram, cdev->spec->dram_mask); 669 670 return 0; 671 } regards, dan carpenter

2 1

[PATCH] dt-bindings: sound: sun8i-a33-codec: Add Allwinner A64 codec compatible fallback
by Clément Péron 12 Oct '20

12 Oct '20

make dtbs_check report a warning because the documentation for the A64 codec compatible is missing. The A64 codec compatible is actually a simple fallback to the A33. Reflect this in the dt-bindings Documentation. Signed-off-by: Clément Péron <peron.clem(a)gmail.com> --- .../bindings/sound/allwinner,sun8i-a33-codec.yaml | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml index 55d28268d2f4..e78a22496e7c 100644 --- a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml +++ b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml @@ -15,7 +15,11 @@ properties: const: 0 compatible: - const: allwinner,sun8i-a33-codec + oneOf: + - const: allwinner,sun8i-a33-codec + - items: + - const: allwinner,sun50i-a64-codec + - const: allwinner,sun8i-a33-codec reg: maxItems: 1 -- 2.25.1

2 2

Can't aplay/arecord simultaneously inside and outside of linux container
by GitHub issues - opened 12 Oct '20

12 Oct '20

alsa-project/alsa-utils issue #62 was opened from fearless-fan: Hi, I run into a problem that can't aplay/arecord simultaneously inside and outside of linux container. Steps to reproduce: 1. go into container's shell and exec a record command. ~ # lxc-attach -n Default -P /tmp/run/lxc / # arecord -d 60 /tmp/test.wav & / # Recording WAVE '/tmp/test.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono / # ps PID USER TIME COMMAND 1 root 0:00 /sbin/init 3 root 0:00 /bin/sh 1519 root 0:00 arecord -d 60 /tmp/test.wav 1520 root 0:00 /bin/ash 1521 root 0:00 ps 2. exit and exec another record command outside of container / # exit ~ # arecord -d 60 /tmp/test.wav & ~ # ALSA lib pcm_dsnoop.c:641:(snd_pcm_dsnoop_open) unable to open slave arecord: main:830: audio open error: Device or resource busy [1]+ Done(1) arecord -d 60 /tmp/test.wav 3. playback has same problem as below ALSA lib pcm_dmix.c:1089:(snd_pcm_dmix_open) unable to open slave aplay: main:830: audio open error: Device or resource busy Expect: It should be allowed to play/record simultaneously inside and outside of linux container. Here's my asound.conf: ~ # cat etc/asound.conf pcm.asymed { type asym playback.pcm "dmix:0,0" capture.pcm "dsnoop:0,0" } pcm.!default { type plug slave.pcm "asymed" } ctl.!default { type hw card 0 } Is there anyone has experience of how to address it? Thank you. Issue URL : https://github.com/alsa-project/alsa-utils/issues/62 Repository URL: https://github.com/alsa-project/alsa-utils

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