stm32f1 - Add missing prototype.
@@ -42,6 +42,12 @@ struct stm32f1_uart_cfg {
IRQn_Type suc_irqn; /* NVIC IRQn */
};
+/*
+ * Internal API for stm32f1xx mcu specific code.
+ */
+int hal_gpio_init_af(int pin, uint8_t af_type, enum hal_gpio_pull pull,
+ uint8_t od);
+
struct hal_flash;
extern struct hal_flash stm32f1_flash_dev;
