diff --git a/drivers/gdisp/ILI9320/gdisp_lld_board_example.h b/drivers/gdisp/ILI9320/gdisp_lld_board_example.h
index 3571e2b4..2f762c42 100644
--- a/drivers/gdisp/ILI9320/gdisp_lld_board_example.h
+++ b/drivers/gdisp/ILI9320/gdisp_lld_board_example.h
@@ -37,6 +37,14 @@ static inline void gdisp_lld_reset_pin(bool_t state) {
 	#error "ILI9320: You must implement setpin_reset routine for your board"
 }
 
+static inline void acquire_bus(void) {
+	#error "ILI9320: You must implement setpin_reset routine for your board"
+}
+
+static inline void release_bus(void) {
+	#error "ILI9320: You must implement setpin_reset routine for your board"
+}
+
 static inline void gdisp_lld_write_index(uint16_t data) {
 	#error "ILI9320: You must implement write_index routine for your board"
 }
diff --git a/drivers/gdisp/ILI9320/gdisp_lld_board_olimex_stm32_lcd.h b/drivers/gdisp/ILI9320/gdisp_lld_board_olimex_stm32_lcd.h
index c8a518c3..7e15a2e0 100644
--- a/drivers/gdisp/ILI9320/gdisp_lld_board_olimex_stm32_lcd.h
+++ b/drivers/gdisp/ILI9320/gdisp_lld_board_olimex_stm32_lcd.h
@@ -61,6 +61,14 @@ static inline void gdisp_lld_reset_pin(bool_t state) {
 		palSetPad(GPIOE, GPIOE_TFT_RST);
 }
 
+static inline void acquire_bus(void) {
+			/* Nothing to do here since LCD is the only device on that bus */
+}
+
+static inline void release_bus(void) {
+			/* Nothing to do here since LCD is the only device on that bus */
+}
+
 static inline void gdisp_lld_write_index(uint16_t reg) {
 	GDISP_REG = reg;
 }