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Driver-API: Documentation: Replace deprecated :c:func: Usage 

Replace :c:func: with func() as the previous usage is deprecated.

Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Link: https://lore.kernel.org/r/20200707053252.32703-1-puranjay12@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Puranjay Mohan 2020-07-07 11:02:52 +05:30 committed by Jonathan Corbet
parent 8b1a17c7c5
commit 3a63e9fcc8
1 changed files with 11 additions and 11 deletions
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22
Documentation/driver-api/device-io.rst
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@ -36,14 +36,14 @@ are starting with one. Physical addresses are of type unsigned long.
This address should not be used directly. Instead, to get an address This address should not be used directly. Instead, to get an address
suitable for passing to the accessor functions described below, you suitable for passing to the accessor functions described below, you
should call :c:func:`ioremap()`. An address suitable for accessing should call ioremap(). An address suitable for accessing
the device will be returned to you. the device will be returned to you.
After you've finished using the device (say, in your module's exit After you've finished using the device (say, in your module's exit
routine), call :c:func:`iounmap()` in order to return the address routine), call iounmap() in order to return the address
space to the kernel. Most architectures allocate new address space each space to the kernel. Most architectures allocate new address space each
time you call :c:func:`ioremap()`, and they can run out unless you time you call ioremap(), and they can run out unless you
call :c:func:`iounmap()`. call iounmap().
Accessing the device Accessing the device
-------------------- --------------------
@ -60,8 +60,8 @@ readb_relaxed(), readw_relaxed(), readl_relaxed(), readq_relaxed(),
writeb(), writew(), writel() and writeq(). writeb(), writew(), writel() and writeq().
Some devices (such as framebuffers) would like to use larger transfers than Some devices (such as framebuffers) would like to use larger transfers than
8 bytes at a time. For these devices, the :c:func:`memcpy_toio()`, 8 bytes at a time. For these devices, the memcpy_toio(),
:c:func:`memcpy_fromio()` and :c:func:`memset_io()` functions are memcpy_fromio() and memset_io() functions are
provided. Do not use memset or memcpy on IO addresses; they are not provided. Do not use memset or memcpy on IO addresses; they are not
guaranteed to copy data in order. guaranteed to copy data in order.
@ -135,15 +135,15 @@ Accessing Port Space
Accesses to this space are provided through a set of functions which Accesses to this space are provided through a set of functions which
allow 8-bit, 16-bit and 32-bit accesses; also known as byte, word and allow 8-bit, 16-bit and 32-bit accesses; also known as byte, word and
long. These functions are :c:func:`inb()`, :c:func:`inw()`, long. These functions are inb(), inw(),
:c:func:`inl()`, :c:func:`outb()`, :c:func:`outw()` and inl(), outb(), outw() and
:c:func:`outl()`. outl().
Some variants are provided for these functions. Some devices require Some variants are provided for these functions. Some devices require
that accesses to their ports are slowed down. This functionality is that accesses to their ports are slowed down. This functionality is
provided by appending a ``_p`` to the end of the function. provided by appending a ``_p`` to the end of the function.
There are also equivalents to memcpy. The :c:func:`ins()` and There are also equivalents to memcpy. The ins() and
:c:func:`outs()` functions copy bytes, words or longs to the given outs() functions copy bytes, words or longs to the given
port. port.
Public Functions Provided Public Functions Provided