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-rw-r--r--src/include/gpio.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/src/include/gpio.h b/src/include/gpio.h
index 3a8951ca73..3160242562 100644
--- a/src/include/gpio.h
+++ b/src/include/gpio.h
@@ -29,7 +29,7 @@ void gpio_input_pulldown(gpio_t gpio);
void gpio_input_pullup(gpio_t gpio);
void gpio_input(gpio_t gpio);
void gpio_output(gpio_t gpio, int value);
-int _gpio_base3_value(gpio_t gpio[], int num_gpio, int binary_first);
+int _gpio_base3_value(const gpio_t gpio[], int num_gpio, int binary_first);
/*
* This function may be implemented by SoC/board code to provide
@@ -60,9 +60,9 @@ uint16_t gpio_acpi_pin(gpio_t gpio);
* There are also pulldown and pullup variants which default each gpio to
* be configured with an internal pulldown and pullup, respectively.
*/
-int gpio_base2_value(gpio_t gpio[], int num_gpio);
-int gpio_pulldown_base2_value(gpio_t gpio[], int num_gpio);
-int gpio_pullup_base2_value(gpio_t gpio[], int num_gpio);
+int gpio_base2_value(const gpio_t gpio[], int num_gpio);
+int gpio_pulldown_base2_value(const gpio_t gpio[], int num_gpio);
+int gpio_pullup_base2_value(const gpio_t gpio[], int num_gpio);
/*
* Read the value presented by the set of GPIOs, when each pin is interpreted
@@ -73,7 +73,7 @@ int gpio_pullup_base2_value(gpio_t gpio[], int num_gpio);
* gpio[]: pin positions to read. gpio[0] is less significant than gpio[1].
* num_gpio: number of pins to read.
*/
-static inline int gpio_base3_value(gpio_t gpio[], int num_gpio)
+static inline int gpio_base3_value(const gpio_t gpio[], int num_gpio)
{
return _gpio_base3_value(gpio, num_gpio, 0);
}
@@ -103,7 +103,8 @@ static inline int gpio_base3_value(gpio_t gpio[], int num_gpio)
* gpio[]: pin positions to read. gpio[0] is less significant than gpio[1].
* num_gpio: number of pins to read.
*/
-static inline int gpio_binary_first_base3_value(gpio_t gpio[], int num_gpio)
+static inline int gpio_binary_first_base3_value(const gpio_t gpio[],
+ int num_gpio)
{
return _gpio_base3_value(gpio, num_gpio, 1);
}