Merge 5.9-rc5 into char-misc-next

We want the char/misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
2020-09-14 10:07:08 +02:00
586 changed files with 5480 additions and 2689 deletions

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@@ -179,7 +179,7 @@ DMA Fence uABI/Sync File
:internal:
Indefinite DMA Fences
~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~
At various times &dma_fence with an indefinite time until dma_fence_wait()
finishes have been proposed. Examples include:

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@@ -6,9 +6,9 @@ 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
* :c:func:`devm_fpga_bridge_create()` — Allocate and init a bridge struct
* :c:func:`fpga_bridge_register()` — Register a bridge
* :c:func:`fpga_bridge_unregister()` — Unregister a bridge
* devm_fpga_bridge_create() — Allocate and init a bridge struct
* fpga_bridge_register() — Register a bridge
* fpga_bridge_unregister() — Unregister a bridge
.. kernel-doc:: include/linux/fpga/fpga-bridge.h
:functions: fpga_bridge

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@@ -104,9 +104,9 @@ 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
* :c:func:`devm_fpga_mgr_create` — Allocate and init a manager struct
* :c:func:`fpga_mgr_register` — Register an FPGA manager
* :c:func:`fpga_mgr_unregister` — Unregister an FPGA manager
* devm_fpga_mgr_create() — Allocate and init a manager struct
* fpga_mgr_register() — Register an FPGA manager
* fpga_mgr_unregister() — Unregister an FPGA manager
.. kernel-doc:: include/linux/fpga/fpga-mgr.h
:functions: fpga_mgr_states

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@@ -6,9 +6,9 @@ Overview
The in-kernel API for FPGA programming is a combination of APIs from
FPGA manager, bridge, and regions. The actual function used to
trigger FPGA programming is :c:func:`fpga_region_program_fpga()`.
trigger FPGA programming is fpga_region_program_fpga().
:c:func:`fpga_region_program_fpga()` uses functionality supplied by
fpga_region_program_fpga() uses functionality supplied by
the FPGA manager and bridges. It will:
* lock the region's mutex
@@ -20,8 +20,8 @@ the FPGA manager and bridges. It will:
* release the locks
The struct fpga_image_info specifies what FPGA image to program. It is
allocated/freed by :c:func:`fpga_image_info_alloc()` and freed with
:c:func:`fpga_image_info_free()`
allocated/freed by fpga_image_info_alloc() and freed with
fpga_image_info_free()
How to program an FPGA using a region
-------------------------------------
@@ -84,10 +84,10 @@ will generate that list. Here's some sample code of what to do next::
API for programming an FPGA
---------------------------
* :c:func:`fpga_region_program_fpga` — Program an FPGA
* :c:type:`fpga_image_info` — Specifies what FPGA image to program
* :c:func:`fpga_image_info_alloc()` — Allocate an FPGA image info struct
* :c:func:`fpga_image_info_free()` — Free an FPGA image info struct
* fpga_region_program_fpga() — Program an FPGA
* fpga_image_info() — Specifies what FPGA image to program
* fpga_image_info_alloc() — Allocate an FPGA image info struct
* fpga_image_info_free() — Free an FPGA image info struct
.. kernel-doc:: drivers/fpga/fpga-region.c
:functions: fpga_region_program_fpga

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@@ -46,18 +46,18 @@ API to add a new FPGA region
----------------------------
* struct :c:type:`fpga_region` — The FPGA region struct
* :c:func:`devm_fpga_region_create` — Allocate and init a region struct
* :c:func:`fpga_region_register` — Register an FPGA region
* :c:func:`fpga_region_unregister` — Unregister an FPGA region
* devm_fpga_region_create() — Allocate and init a region struct
* fpga_region_register() — Register an FPGA region
* fpga_region_unregister() — Unregister an FPGA region
The FPGA region's probe function will need to get a reference to the FPGA
Manager it will be using to do the programming. This usually would happen
during the region's probe function.
* :c:func:`fpga_mgr_get` — Get a reference to an FPGA manager, raise ref count
* :c:func:`of_fpga_mgr_get` — Get a reference to an FPGA manager, raise ref count,
* fpga_mgr_get() — Get a reference to an FPGA manager, raise ref count
* of_fpga_mgr_get() — Get a reference to an FPGA manager, raise ref count,
given a device node.
* :c:func:`fpga_mgr_put` — Put an FPGA manager
* fpga_mgr_put() — Put an FPGA manager
The FPGA region will need to specify which bridges to control while programming
the FPGA. The region driver can build a list of bridges during probe time
@@ -66,11 +66,11 @@ the list of bridges to program just before programming
(:c:member:`fpga_region->get_bridges`). The FPGA bridge framework supplies the
following APIs to handle building or tearing down that list.
* :c:func:`fpga_bridge_get_to_list` — Get a ref of an FPGA bridge, add it to a
* fpga_bridge_get_to_list() — Get a ref of an FPGA bridge, add it to a
list
* :c:func:`of_fpga_bridge_get_to_list` — Get a ref of an FPGA bridge, add it to a
* of_fpga_bridge_get_to_list() — Get a ref of an FPGA bridge, add it to a
list, given a device node
* :c:func:`fpga_bridges_put` — Given a list of bridges, put them
* fpga_bridges_put() — Given a list of bridges, put them
.. kernel-doc:: include/linux/fpga/fpga-region.h
:functions: fpga_region

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@@ -11,10 +11,10 @@ Industrial I/O Devices
----------------------
* struct :c:type:`iio_dev` - industrial I/O device
* :c:func:`iio_device_alloc()` - allocate an :c:type:`iio_dev` from a driver
* :c:func:`iio_device_free()` - free an :c:type:`iio_dev` from a driver
* :c:func:`iio_device_register()` - register a device with the IIO subsystem
* :c:func:`iio_device_unregister()` - unregister a device from the IIO
* 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
* iio_device_unregister() - unregister a device from the IIO
subsystem
An IIO device usually corresponds to a single hardware sensor and it
@@ -34,17 +34,17 @@ A typical IIO driver will register itself as an :doc:`I2C <../i2c>` or
At probe:
1. Call :c:func:`iio_device_alloc()`, which allocates memory for an IIO device.
1. Call iio_device_alloc(), which allocates memory for an IIO device.
2. Initialize IIO device fields with driver specific information (e.g.
device name, device channels).
3. Call :c:func:`iio_device_register()`, this registers the device with the
3. Call iio_device_register(), this registers the device with the
IIO core. After this call the device is ready to accept requests from user
space applications.
At remove, we free the resources allocated in probe in reverse order:
1. :c:func:`iio_device_unregister()`, unregister the device from the IIO core.
2. :c:func:`iio_device_free()`, free the memory allocated for the IIO device.
1. iio_device_unregister(), unregister the device from the IIO core.
2. iio_device_free(), free the memory allocated for the IIO device.
IIO device sysfs interface
==========================