linux-kernel - [PATCH 6/7] ARM: dts: stm32: add pins for usart2/1/4/8 in stm32mp13-pinctrl

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Date:   Mon, 27 Mar 2023 17:39:42 +0200
From:   Valentin Caron <valentin.caron@...s.st.com>
To:     Alexandre Torgue <alexandre.torgue@...s.st.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 6/7] ARM: dts: stm32: add pins for usart2/1/4/8 in stm32mp13-pinctrl

Add pins for uart4, uart8, usart1 and usart2 in stm32mp13-pinctrl.dtsi
Theses pins have three states: default, sleep and idle.

Signed-off-by: Valentin Caron <valentin.caron@...s.st.com>
---
 arch/arm/boot/dts/stm32mp13-pinctrl.dtsi | 129 +++++++++++++++++++++++
 1 file changed, 129 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
index b2dce3a29f39..27e0c3826789 100644
--- a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
@@ -258,4 +258,133 @@ pins2 {
 			bias-disable;
 		};
 	};
+
+	uart4_idle_pins_a: uart4-idle-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('D', 6, ANALOG)>; /* UART4_TX */
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('D', 8, AF8)>; /* UART4_RX */
+			bias-disable;
+		};
+	};
+
+	uart4_sleep_pins_a: uart4-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('D', 6, ANALOG)>, /* UART4_TX */
+				 <STM32_PINMUX('D', 8, ANALOG)>; /* UART4_RX */
+		};
+	};
+
+	uart8_pins_a: uart8-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('E', 1, AF8)>; /* UART8_TX */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('F', 9, AF8)>; /* UART8_RX */
+			bias-pull-up;
+		};
+	};
+
+	uart8_idle_pins_a: uart8-idle-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('E', 1, ANALOG)>; /* UART8_TX */
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('F', 9, AF8)>; /* UART8_RX */
+			bias-pull-up;
+		};
+	};
+
+	uart8_sleep_pins_a: uart8-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('E', 1, ANALOG)>, /* UART8_TX */
+				 <STM32_PINMUX('F', 9, ANALOG)>; /* UART8_RX */
+		};
+	};
+
+	usart1_pins_a: usart1-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('C', 0, AF7)>, /* USART1_TX */
+				 <STM32_PINMUX('C', 2, AF7)>; /* USART1_RTS */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('B', 0, AF4)>, /* USART1_RX */
+				 <STM32_PINMUX('A', 7, AF7)>; /* USART1_CTS_NSS */
+			bias-pull-up;
+		};
+	};
+
+	usart1_idle_pins_a: usart1-idle-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('C', 0, ANALOG)>, /* USART1_TX */
+				 <STM32_PINMUX('A', 7, ANALOG)>; /* USART1_CTS_NSS */
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('C', 2, AF7)>; /* USART1_RTS */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins3 {
+			pinmux = <STM32_PINMUX('B', 0, AF4)>; /* USART1_RX */
+			bias-pull-up;
+		};
+	};
+
+	usart1_sleep_pins_a: usart1-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('C', 0, ANALOG)>, /* USART1_TX */
+				 <STM32_PINMUX('C', 2, ANALOG)>, /* USART1_RTS */
+				 <STM32_PINMUX('A', 7, ANALOG)>, /* USART1_CTS_NSS */
+				 <STM32_PINMUX('B', 0, ANALOG)>; /* USART1_RX */
+		};
+	};
+
+	usart2_pins_a: usart2-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('H', 12, AF1)>, /* USART2_TX */
+				 <STM32_PINMUX('D', 4, AF3)>; /* USART2_RTS */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('D', 15, AF1)>, /* USART2_RX */
+				 <STM32_PINMUX('E', 11, AF2)>; /* USART2_CTS_NSS */
+			bias-disable;
+		};
+	};
+
+	usart2_idle_pins_a: usart2-idle-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('H', 12, ANALOG)>, /* USART2_TX */
+				 <STM32_PINMUX('E', 11, ANALOG)>; /* USART2_CTS_NSS */
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('D', 4, AF3)>; /* USART2_RTS */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins3 {
+			pinmux = <STM32_PINMUX('D', 15, AF1)>; /* USART2_RX */
+			bias-disable;
+		};
+	};
+
+	usart2_sleep_pins_a: usart2-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('H', 12, ANALOG)>, /* USART2_TX */
+				 <STM32_PINMUX('D', 4, ANALOG)>, /* USART2_RTS */
+				 <STM32_PINMUX('D', 15, ANALOG)>, /* USART2_RX */
+				 <STM32_PINMUX('E', 11, ANALOG)>; /* USART2_CTS_NSS */
+		};
+	};
 };
-- 
2.25.1