From 3fd60a4f43509a9f0f0da04e5b2e10492a42cb2f Mon Sep 17 00:00:00 2001
From: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Date: Sun, 3 Sep 2023 22:33:51 +0200
Subject: [PATCH] ARM: dts: stm32: add pin map for CAN controller on stm32f4

commit 559a6e75b4bcf0fc9e41d34865e72cf742f67d8e Linux upstream.

Add pin configurations for using CAN controller on stm32f469-disco
board. They are located on the Arduino compatible connector CN5 (CAN1)
and on the extension connector CN12 (CAN2).

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/all/20230328073328.3949796-5-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
 arch/arm/dts/stm32f4-pinctrl.dtsi | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/dts/stm32f4-pinctrl.dtsi b/arch/arm/dts/stm32f4-pinctrl.dtsi
index 46815c965d..0adc41b2a4 100644
--- a/arch/arm/dts/stm32f4-pinctrl.dtsi
+++ b/arch/arm/dts/stm32f4-pinctrl.dtsi
@@ -412,6 +412,36 @@
 					slew-rate = <2>;
 				};
 			};
+
+			can1_pins_a: can1-0 {
+				pins1 {
+					pinmux = <STM32_PINMUX('B', 9, AF9)>; /* CAN1_TX */
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('B', 8, AF9)>; /* CAN1_RX */
+					bias-pull-up;
+				};
+			};
+
+			can2_pins_a: can2-0 {
+				pins1 {
+					pinmux = <STM32_PINMUX('B', 13, 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;
+				};
+			};
 		};
 	};
 };
-- 
2.39.5