diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/gpio.txt | 10 | ||||
| -rw-r--r-- | Documentation/zh_CN/gpio.txt | 8 |
2 files changed, 9 insertions, 9 deletions
diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt index 77a1d11af723..6f83fa965b4b 100644 --- a/Documentation/gpio.txt +++ b/Documentation/gpio.txt @@ -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> diff --git a/Documentation/zh_CN/gpio.txt b/Documentation/zh_CN/gpio.txt index 4fa7b4e6f856..d5b8f01833f4 100644 --- a/Documentation/zh_CN/gpio.txt +++ b/Documentation/zh_CN/gpio.txt @@ -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> |