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Removal of GENERIC_GPIO for v3.10

Browse source 
GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid
 cases for enableing GENERIC_GPIO without GPIOLIB, even though it is
 possible to do so which has been causing confusion and breakage. This
 branch does the work to completely eliminate GENERIC_GPIO.
 
 However, it is not trivial to just create a branch to remove it. Over
 the course of the v3.9 cycle more code referencing GENERIC_GPIO has been
 added to linux-next that conflicts with this branch. The following must
 be done to resolve the conflicts when merging this branch into mainline:
 
 * "git grep CONFIG_GENERIC_GPIO" should return 0 hits. Matches should be
   replaced with CONFIG_GPIOLIB
 * "git grep '\bGENERIC_GPIO\b'" should return 1 hit in the Chinese
   documentation.
 * Selectors of GENERIC_GPIO should be turned into selectors of GPIOLIB
 * definitions of the option in architecture Kconfig code should be deleted.
 
 Stephen has 3 merge fixup patches[1] that do the above. They are currently
 applicable on mainline as of May 2nd.
 
 [1] http://www.mail-archive.com/[email protected]/msg428056.html
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux

Pull removal of GENERIC_GPIO from Grant Likely:
 "GENERIC_GPIO now synonymous with GPIOLIB.  There are no longer any
  valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
  is possible to do so which has been causing confusion and breakage.
  This branch does the work to completely eliminate GENERIC_GPIO."

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
  gpio: update gpio Chinese documentation
  Remove GENERIC_GPIO config option
  Convert selectors of GENERIC_GPIO to GPIOLIB
  blackfin: force use of gpiolib
  m68k: coldfire: use gpiolib
  mips: pnx833x: remove requirement for GENERIC_GPIO
  openrisc: default GENERIC_GPIO to false
  avr32: default GENERIC_GPIO to false
  xtensa: remove explicit selection of GENERIC_GPIO
  sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
  powerpc: remove redundant GENERIC_GPIO selection
  unicore32: default GENERIC_GPIO to false
  unicore32: remove unneeded select GENERIC_GPIO
  arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
  arm: remove redundant GENERIC_GPIO selection
  mips: alchemy: require gpiolib
  mips: txx9: change GENERIC_GPIO to GPIOLIB
  mips: loongson: use GPIO driver on CONFIG_GPIOLIB
  mips: remove redundant GENERIC_GPIO select
This commit is contained in:
Linus Torvalds 2013-05-09 09:59:16 -07:00
commit 5647ac0ad4
64 changed files with 76 additions and 155 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Documentation/gpio.txt
View file

@ -72,11 +72,11 @@ in this document, but drivers acting as clients to the GPIO interface must
not care how it's implemented.)
That said, if the convention is supported on their platform, drivers should
use it when possible. Platforms must declare GENERIC_GPIO support in their
Kconfig (boolean true), and provide an <asm/gpio.h> file. Drivers that can't
work without standard GPIO calls should have Kconfig entries which depend
on GENERIC_GPIO. The GPIO calls are available, either as "real code" or as
optimized-away stubs, when drivers use the include file:
use it when possible. Platforms must select ARCH_REQUIRE_GPIOLIB or
ARCH_WANT_OPTIONAL_GPIOLIB in their Kconfig. Drivers that can't work without
standard GPIO calls should have Kconfig entries which depend on GPIOLIB. The
GPIO calls are available, either as "real code" or as optimized-away stubs,
when drivers use the include file:
#include <linux/gpio.h>

8
Documentation/zh_CN/gpio.txt
View file

@ -84,10 +84,10 @@ GPIO 公约
控制器的抽象函数来实现它。(有一些可选的代码能支持这种策略的实现,本文档
后面会介绍，但作为 GPIO 接口的客户端驱动程序必须与它的实现无关。)
也就是说,如果在他们的平台上支持这个公约，驱动应尽可能的使用它。平台
必须在 Kconfig 中声明对 GENERIC_GPIO的支持 (布尔型 true)，并提供
一个 <asm/gpio.h> 文件。那些调用标准 GPIO 函数的驱动应该在 Kconfig
入口中声明依赖GENERIC_GPIO。当驱动包含文件:
也就是说,如果在他们的平台上支持这个公约，驱动应尽可能的使用它。同时，平台
必须在 Kconfig 中选择 ARCH_REQUIRE_GPIOLIB 或者 ARCH_WANT_OPTIONAL_GPIOLIB
选项。那些调用标准 GPIO 函数的驱动应该在 Kconfig 入口中声明依赖GENERIC_GPIO。
当驱动包含文件:
#include <linux/gpio.h>