linux-kernel - [PATCH 1/8] ARM: dts: stm32h7-pinctrl: add _a suffix to u[s]art

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Message-ID: <20250427074404.3278732-2-dario.binacchi@amarulasolutions.com>
Date: Sun, 27 Apr 2025 09:43:20 +0200
From: Dario Binacchi <dario.binacchi@...rulasolutions.com>
To: linux-kernel@...r.kernel.org
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
	linux-amarula@...rulasolutions.com,
	Dario Binacchi <dario.binacchi@...rulasolutions.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Rob Herring <robh@...nel.org>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com
Subject: [PATCH 1/8] ARM: dts: stm32h7-pinctrl: add _a suffix to u[s]art_pins phandles

Allow expanding possible configurations for the same peripheral,
consistent with the scheme adopted in Linux.

Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
---

 arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi  | 8 ++++----
 arch/arm/boot/dts/st/stm32h743i-disco.dts  | 2 +-
 arch/arm/boot/dts/st/stm32h743i-eval.dts   | 2 +-
 arch/arm/boot/dts/st/stm32h750i-art-pi.dts | 6 +++---
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi b/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
index 7f1d234e1024..ad00c1080a96 100644
--- a/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
+++ b/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
@@ -198,7 +198,7 @@ pins2 {
 		};
 	};
 
-	uart4_pins: uart4-0 {
+	uart4_pins_a: uart4-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('A', 0, AF8)>; /* UART4_TX */
 			bias-disable;
@@ -211,7 +211,7 @@ pins2 {
 		};
 	};
 
-	usart1_pins: usart1-0 {
+	usart1_pins_a: usart1-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('B', 14, AF4)>; /* USART1_TX */
 			bias-disable;
@@ -224,7 +224,7 @@ pins2 {
 		};
 	};
 
-	usart2_pins: usart2-0 {
+	usart2_pins_a: usart2-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('D', 5, AF7)>; /* USART2_TX */
 			bias-disable;
@@ -237,7 +237,7 @@ pins2 {
 		};
 	};
 
-	usart3_pins: usart3-0 {
+	usart3_pins_a: usart3-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('B', 10, AF7)>, /* USART3_TX */
 				 <STM32_PINMUX('D', 12, AF7)>; /* USART3_RTS_DE */
diff --git a/arch/arm/boot/dts/st/stm32h743i-disco.dts b/arch/arm/boot/dts/st/stm32h743i-disco.dts
index 2b452883a708..8451a54a9a08 100644
--- a/arch/arm/boot/dts/st/stm32h743i-disco.dts
+++ b/arch/arm/boot/dts/st/stm32h743i-disco.dts
@@ -105,7 +105,7 @@ &sdmmc1 {
 };
 
 &usart2 {
-	pinctrl-0 = <&usart2_pins>;
+	pinctrl-0 = <&usart2_pins_a>;
 	pinctrl-names = "default";
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/st/stm32h743i-eval.dts b/arch/arm/boot/dts/st/stm32h743i-eval.dts
index 5c5d8059bdc7..4b0ced27b80e 100644
--- a/arch/arm/boot/dts/st/stm32h743i-eval.dts
+++ b/arch/arm/boot/dts/st/stm32h743i-eval.dts
@@ -145,7 +145,7 @@ &sdmmc1 {
 };
 
 &usart1 {
-	pinctrl-0 = <&usart1_pins>;
+	pinctrl-0 = <&usart1_pins_a>;
 	pinctrl-names = "default";
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/st/stm32h750i-art-pi.dts b/arch/arm/boot/dts/st/stm32h750i-art-pi.dts
index 44c307f8b09c..00d195d52a45 100644
--- a/arch/arm/boot/dts/st/stm32h750i-art-pi.dts
+++ b/arch/arm/boot/dts/st/stm32h750i-art-pi.dts
@@ -197,14 +197,14 @@ partition@0 {
 };
 
 &usart2 {
-	pinctrl-0 = <&usart2_pins>;
+	pinctrl-0 = <&usart2_pins_a>;
 	pinctrl-names = "default";
 	status = "disabled";
 };
 
 &usart3 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&usart3_pins>;
+	pinctrl-0 = <&usart3_pins_a>;
 	dmas = <&dmamux1 45 0x400 0x05>,
 	       <&dmamux1 46 0x400 0x05>;
 	dma-names = "rx", "tx";
@@ -221,7 +221,7 @@ bluetooth {
 };
 
 &uart4 {
-	pinctrl-0 = <&uart4_pins>;
+	pinctrl-0 = <&uart4_pins_a>;
 	pinctrl-names = "default";
 	status = "okay";
 };
-- 
2.43.0