hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

m68k: define a local gpio_request_one() function 

Compiling for linux-3.9-rc1 and later fails with:

drivers/gpio/devres.c: In function 'devm_gpio_request_one':
drivers/gpio/devres.c:90:2: error: implicit declaration of function 'gpio_request_one' [-Werror=implicit-function-declaration]

So provide a local gpio_request_one() function. Code largely borrowed from
blackfin's local gpio_request_one() function.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Greg Ungerer 2013-04-08 14:21:31 +10:00
parent 31880c37c1
commit b2dfaa8d33
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
arch/m68k/include/asm/gpio.h
View File

@ -86,4 +86,24 @@ static inline int gpio_cansleep(unsigned gpio)
return gpio < MCFGPIO_PIN_MAX ? 0 : __gpio_cansleep(gpio);
}
static inline int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
{
int err;
err = gpio_request(gpio, label);
if (err)
return err;
if (flags & GPIOF_DIR_IN)
err = gpio_direction_input(gpio);
else
err = gpio_direction_output(gpio,
(flags & GPIOF_INIT_HIGH) ? 1 : 0);
if (err)
gpio_free(gpio);
return err;
}
#endif