delete unused GPIO_SET_ALT_1

src/drivers/drv_gpio.h

@@ -71,9 +71,6 @@
 /** configure the board GPIOs in (arg) as inputs */
 #define GPIO_SET_INPUT	GPIOC(2)
 
-/** configure the board GPIOs in (arg) for the first alternate function (if supported) */
-#define GPIO_SET_ALT_1	GPIOC(3)
-
 /** configure the board GPIO (arg) for the second alternate function (if supported) */
 #define GPIO_SET_ALT_2	GPIOC(4)
 

src/drivers/pwm_out_sim/pwm_out_sim.cpp

@@ -900,10 +900,6 @@ hil_new_mode(PortMode new_mode)
 		break;
 	}
 
-//	/* adjust GPIO config for serial mode(s) */
-//	if (gpio_bits != 0)
-//		g_pwm_sim->ioctl(0, GPIO_SET_ALT_1, gpio_bits);
-
 	/* (re)set the PWM output mode */
 	g_pwm_sim->set_mode(servo_mode);
 

src/drivers/px4fmu/fmu.cpp

@@ -2699,12 +2699,6 @@ PX4FMU::gpio_set_function(uint32_t gpios, int function)
 
 				break;
 
-			case GPIO_SET_ALT_1:
-				if (_gpio_tab[i].alt != 0) {
-					px4_arch_configgpio(_gpio_tab[i].alt);
-				}
-
-				break;
 			}
 		}
 	}
@@ -2913,7 +2907,6 @@ PX4FMU::gpio_ioctl(struct file *filp, int cmd, unsigned long arg)
 	case GPIO_SET_OUTPUT_LOW:
 	case GPIO_SET_OUTPUT_HIGH:
 	case GPIO_SET_INPUT:
-	case GPIO_SET_ALT_1:
 		ret = gpio_set_function(arg, cmd);
 		break;