diff --git a/Marlin/src/HAL/DUE/HAL.h b/Marlin/src/HAL/DUE/HAL.h
index 5d1d2cf236d7..96a59fcf3cbe 100644
--- a/Marlin/src/HAL/DUE/HAL.h
+++ b/Marlin/src/HAL/DUE/HAL.h
@@ -131,8 +131,6 @@ typedef Servo hal_servo_t;
   #define analogInputToDigitalPin(p) ((p < 12U) ? (p) + 54U : -1)
 #endif
 
-#define HAL_ANALOG_SELECT(ch)
-
 //
 // Pin Mapping for M42, M43, M226
 //
diff --git a/Marlin/src/HAL/ESP32/HAL.h b/Marlin/src/HAL/ESP32/HAL.h
index 361c9032317d..138346b950a7 100644
--- a/Marlin/src/HAL/ESP32/HAL.h
+++ b/Marlin/src/HAL/ESP32/HAL.h
@@ -85,9 +85,6 @@ void noTone(const pin_t _pin);
 
 void analogWrite(pin_t pin, int value);
 
-// ADC
-#define HAL_ANALOG_SELECT(pin)
-
 //
 // Pin Mapping for M42, M43, M226
 //
diff --git a/Marlin/src/HAL/LINUX/HAL.h b/Marlin/src/HAL/LINUX/HAL.h
index c1b7a5499706..a2a9692cbdcd 100644
--- a/Marlin/src/HAL/LINUX/HAL.h
+++ b/Marlin/src/HAL/LINUX/HAL.h
@@ -82,7 +82,6 @@ extern MSerialT usb_serial;
 // ADC
 #define HAL_ADC_VREF           5.0
 #define HAL_ADC_RESOLUTION    10
-#define HAL_ANALOG_SELECT(ch) hal.adc_enable(ch)
 
 // ------------------------
 // Class Utilities
diff --git a/Marlin/src/HAL/LPC1768/HAL.h b/Marlin/src/HAL/LPC1768/HAL.h
index f1cdbe6f078d..e1ade3d9a72c 100644
--- a/Marlin/src/HAL/LPC1768/HAL.h
+++ b/Marlin/src/HAL/LPC1768/HAL.h
@@ -133,8 +133,6 @@ extern DefaultSerial1 USBSerial;
 #define HAL_ADC_RESOLUTION     12   // 15 bit maximum, raw temperature is stored as int16_t
 #define HAL_ADC_FILTERED            // Disable oversampling done in Marlin as ADC values already filtered in HAL
 
-#define HAL_ANALOG_SELECT(pin) hal.adc_enable(pin)
-
 //
 // Pin Mapping for M42, M43, M226
 //
diff --git a/Marlin/src/HAL/NATIVE_SIM/HAL.h b/Marlin/src/HAL/NATIVE_SIM/HAL.h
index 0798bdde393d..50da5af2eb92 100644
--- a/Marlin/src/HAL/NATIVE_SIM/HAL.h
+++ b/Marlin/src/HAL/NATIVE_SIM/HAL.h
@@ -117,7 +117,6 @@ extern MSerialT serial_stream_3;
 
 #define HAL_ADC_VREF           5.0
 #define HAL_ADC_RESOLUTION    10
-#define HAL_ANALOG_SELECT(ch) hal.adc_enable(ch)
 
 /* ---------------- Delay in cycles */
 
diff --git a/Marlin/src/HAL/SAMD51/HAL.h b/Marlin/src/HAL/SAMD51/HAL.h
index 9fcd73e9b64b..e9d4a70c3f19 100644
--- a/Marlin/src/HAL/SAMD51/HAL.h
+++ b/Marlin/src/HAL/SAMD51/HAL.h
@@ -106,8 +106,6 @@ typedef Servo hal_servo_t;
 // ADC
 //
 
-#define HAL_ANALOG_SELECT(pin)
-
 //#define HAL_ADC_FILTERED          // Disable Marlin's oversampling. The HAL filters ADC values.
 #define HAL_ADC_VREF         3.3
 #define HAL_ADC_RESOLUTION  10      // ... 12
diff --git a/Marlin/src/HAL/STM32/HAL.h b/Marlin/src/HAL/STM32/HAL.h
index c23ddf69bdaa..f9bf1c938aa5 100644
--- a/Marlin/src/HAL/STM32/HAL.h
+++ b/Marlin/src/HAL/STM32/HAL.h
@@ -142,8 +142,6 @@ typedef libServo hal_servo_t;
 // ADC
 // ------------------------
 
-#define HAL_ANALOG_SELECT(pin) pinMode(pin, INPUT)
-
 #ifdef ADC_RESOLUTION
   #define HAL_ADC_RESOLUTION ADC_RESOLUTION
 #else
@@ -240,7 +238,7 @@ class MarlinHAL {
   }
 
   // Called by Temperature::init for each sensor at startup
-  static void adc_enable(const pin_t pin);
+  static inline void adc_enable(const pin_t pin) { pinMode(pin, INPUT); }
 
   // Begin ADC sampling on the given channel
   static void adc_start(const pin_t pin) { adc_result = analogRead(pin); }
diff --git a/Marlin/src/HAL/STM32F1/HAL.h b/Marlin/src/HAL/STM32F1/HAL.h
index 8fb4c9299ff5..bdbf4a1885ae 100644
--- a/Marlin/src/HAL/STM32F1/HAL.h
+++ b/Marlin/src/HAL/STM32F1/HAL.h
@@ -188,8 +188,6 @@ extern uint16_t HAL_adc_result;
 // ADC
 // ------------------------
 
-#define HAL_ANALOG_SELECT(pin) pinMode(pin, INPUT_ANALOG);
-
 #ifdef ADC_RESOLUTION
   #define HAL_ADC_RESOLUTION ADC_RESOLUTION
 #else
diff --git a/Marlin/src/HAL/TEENSY31_32/HAL.h b/Marlin/src/HAL/TEENSY31_32/HAL.h
index a5f67a50f0aa..0661b55f53a9 100644
--- a/Marlin/src/HAL/TEENSY31_32/HAL.h
+++ b/Marlin/src/HAL/TEENSY31_32/HAL.h
@@ -105,8 +105,6 @@ uint32_t __get_PRIMASK(void); // CMSIS
 #define HAL_ADC_VREF         3.3
 #define HAL_ADC_RESOLUTION  10
 
-#define HAL_ANALOG_SELECT(pin)
-
 //
 // Pin Mapping for M42, M43, M226
 //
diff --git a/Marlin/src/HAL/TEENSY35_36/HAL.h b/Marlin/src/HAL/TEENSY35_36/HAL.h
index 8ca76dc6368b..1cc465c4bbf2 100644
--- a/Marlin/src/HAL/TEENSY35_36/HAL.h
+++ b/Marlin/src/HAL/TEENSY35_36/HAL.h
@@ -110,8 +110,6 @@ typedef int8_t pin_t;
 #define HAL_ADC_VREF         3.3
 #define HAL_ADC_RESOLUTION  10
 
-#define HAL_ANALOG_SELECT(pin)
-
 //
 // Pin Mapping for M42, M43, M226
 //
diff --git a/Marlin/src/HAL/TEENSY40_41/HAL.h b/Marlin/src/HAL/TEENSY40_41/HAL.h
index 10263ecb394a..7bad14317909 100644
--- a/Marlin/src/HAL/TEENSY40_41/HAL.h
+++ b/Marlin/src/HAL/TEENSY40_41/HAL.h
@@ -129,8 +129,6 @@ typedef int8_t pin_t;
 #define HAL_ADC_RESOLUTION  10
 #define HAL_ADC_FILTERED      // turn off ADC oversampling
 
-#define HAL_ANALOG_SELECT(pin)
-
 //
 // Pin Mapping for M42, M43, M226
 //