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-rw-r--r--target/linux/atheros/files/include/asm-mips/mach-atheros/gpio.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/target/linux/atheros/files/include/asm-mips/mach-atheros/gpio.h b/target/linux/atheros/files/include/asm-mips/mach-atheros/gpio.h
index 560b8cc0d..db7347c22 100644
--- a/target/linux/atheros/files/include/asm-mips/mach-atheros/gpio.h
+++ b/target/linux/atheros/files/include/asm-mips/mach-atheros/gpio.h
@@ -26,9 +26,8 @@ static inline int gpio_direction_input(unsigned gpio) {
return -ENXIO; \
} else { \
sysRegWrite(AR531X_GPIO_CR, \
- ( sysRegRead(AR531X_GPIO_CR) & \
- ~(AR531X_GPIO_CR_M(gpio)) ) | \
- AR531X_GPIO_CR_I(gpio) ); \
+ sysRegRead(AR531X_GPIO_CR) | \
+ AR531X_GPIO_CR_I(gpio) ); \
return 0; \
} \
)
@@ -42,6 +41,7 @@ static inline int gpio_direction_input(unsigned gpio) {
return 0; \
} \
)
+ return -ENXIO;
}
/* Sets a gpio to output with value, or returns ENXIO for non-existent gpio */
@@ -54,8 +54,8 @@ static inline int gpio_direction_output(unsigned gpio, int value) {
~(1 << gpio) ) | \
((value!=0) << gpio)) ); \
sysRegWrite(AR531X_GPIO_CR, \
- sysRegRead(AR531X_GPIO_CR) | \
- AR531X_GPIO_CR_O(gpio) ); \
+ ( sysRegRead(AR531X_GPIO_CR) & \
+ ~(AR531X_GPIO_CR_M(gpio)) )); \
return 0; \
} \
)
@@ -72,12 +72,14 @@ static inline int gpio_direction_output(unsigned gpio, int value) {
return 0; \
} \
)
+ return -ENXIO;
}
/* Reads the gpio pin. Unchecked function */
static inline int gpio_get_value(unsigned gpio) {
DO_AR5312(return (sysRegRead(AR531X_GPIO_DI) & (1 << gpio));)
DO_AR5315(return (sysRegRead(AR5315_GPIO_DI) & (1 << gpio));)
+ return 0;
}
/* Writes to the gpio pin. Unchecked function */