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Blackfin: gpio: optimize free path a little

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When we aren't doing resource tracking, the gpio_free() function is a
stub that simply returns, so pull this logic up a level and make it an
inline stub in the header.  Now we don't have to waste time at any of
the call sites.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2011-05-10 12:56:58 -04:00
parent 272d2fc2f5
commit 95b4b9d97a
2 changed files with 4 additions and 1 deletions
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2
arch/blackfin/cpu/gpio.c
View File

@ -665,6 +665,7 @@ int bfin_gpio_request(unsigned gpio, const char *label)
return 0; return 0;
} }
#ifdef CONFIG_BFIN_GPIO_TRACK
void bfin_gpio_free(unsigned gpio) void bfin_gpio_free(unsigned gpio)
{ {
if (check_gpio(gpio) < 0) if (check_gpio(gpio) < 0)
@ -679,6 +680,7 @@ void bfin_gpio_free(unsigned gpio)
set_label(gpio, "free"); set_label(gpio, "free");
} }
#endif
#ifdef BFIN_SPECIAL_GPIO_BANKS #ifdef BFIN_SPECIAL_GPIO_BANKS
DECLARE_RESERVED_MAP(special_gpio, gpio_bank(MAX_RESOURCES)); DECLARE_RESERVED_MAP(special_gpio, gpio_bank(MAX_RESOURCES));

3
arch/blackfin/include/asm/gpio.h
View File

@ -142,8 +142,10 @@ struct gpio_port_t {
#ifdef CONFIG_BFIN_GPIO_TRACK #ifdef CONFIG_BFIN_GPIO_TRACK
void bfin_gpio_labels(void); void bfin_gpio_labels(void);
void bfin_gpio_free(unsigned gpio);
#else #else
#define bfin_gpio_labels() #define bfin_gpio_labels()
#define bfin_gpio_free(gpio)
#define bfin_gpio_request(gpio, label) bfin_gpio_request(gpio) #define bfin_gpio_request(gpio, label) bfin_gpio_request(gpio)
#define bfin_special_gpio_request(gpio, label) bfin_special_gpio_request(gpio) #define bfin_special_gpio_request(gpio, label) bfin_special_gpio_request(gpio)
#endif #endif
@ -154,7 +156,6 @@ int bfin_special_gpio_request(unsigned gpio, const char *label);
#endif #endif
int bfin_gpio_request(unsigned gpio, const char *label); int bfin_gpio_request(unsigned gpio, const char *label);
void bfin_gpio_free(unsigned gpio);
int bfin_gpio_direction_input(unsigned gpio); int bfin_gpio_direction_input(unsigned gpio);
int bfin_gpio_direction_output(unsigned gpio, int value); int bfin_gpio_direction_output(unsigned gpio, int value);
int bfin_gpio_get_value(unsigned gpio); int bfin_gpio_get_value(unsigned gpio);