diff options
Diffstat (limited to 'Documentation/gpio.txt')
| -rw-r--r-- | Documentation/gpio.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt index 77a1d11af72..6f83fa965b4 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> |