ARM: dts: stm32: add pin map for CAN controller on stm32f7

Add pin configurations for using CAN controller on stm32f7.
Signed-off-by: NDario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/all/20230427204540.3126234-4-dario.binacchi@amarulasolutions.comSigned-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>

arch/arm/boot/dts/stm32f7-pinctrl.dtsi

@@ -283,6 +283,88 @@
 					slew-rate = <2>;
 				};
 			};
+
+			can1_pins_a: can1-0 {
+				pins1 {
+					pinmux = <STM32_PINMUX('A', 12, AF9)>; /* CAN1_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('A', 11, AF9)>; /* CAN1_RX */
+					bias-pull-up;
+				};
+			};
+
+			can1_pins_b: can1-1 {
+				pins1 {
+					pinmux = <STM32_PINMUX('B', 9, AF9)>; /* CAN1_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('B', 8, AF9)>; /* CAN1_RX */
+					bias-pull-up;
+				};
+			};
+
+			can1_pins_c: can1-2 {
+				pins1 {
+					pinmux = <STM32_PINMUX('D', 1, AF9)>; /* CAN1_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('D', 0, AF9)>; /* CAN1_RX */
+					bias-pull-up;
+
+				};
+			};
+
+			can1_pins_d: can1-3 {
+				pins1 {
+					pinmux = <STM32_PINMUX('H', 13, AF9)>; /* CAN1_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('H', 14, AF9)>; /* CAN1_RX */
+					bias-pull-up;
+
+				};
+			};
+
+			can2_pins_a: can2-0 {
+				pins1 {
+					pinmux = <STM32_PINMUX('B', 6, AF9)>; /* CAN2_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('B', 5, AF9)>; /* CAN2_RX */
+					bias-pull-up;
+				};
+			};
+
+			can2_pins_b: can2-1 {
+				pins1 {
+					pinmux = <STM32_PINMUX('B', 13, AF9)>; /* CAN2_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('B', 12, AF9)>; /* CAN2_RX */
+					bias-pull-up;
+				};
+			};
+
+			can3_pins_a: can3-0 {
+				pins1 {
+					pinmux = <STM32_PINMUX('A', 15, AF11)>; /* CAN3_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('A', 8, AF11)>; /* CAN3_RX */
+					bias-pull-up;
+				};
+			};
+
+			can3_pins_b: can3-1 {
+				pins1 {
+					pinmux = <STM32_PINMUX('B', 4, AF11)>;  /* CAN3_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('B', 3, AF11)>; /* CAN3_RX */
+					bias-pull-up;
+				};
+			};
 		};
 	};
 };