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Message-ID: <20230327153943.275124-1-valentin.caron@foss.st.com>
Date: Mon, 27 Mar 2023 17:39:38 +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 2/7] ARM: dts: stm32: fix slew-rate of USART2 on stm32mp15xx-dkx
On stm32mp15xx-dkx boards:
- Fix slew-rate of USART 2 to 0 like other USARTs, because frequency of
USART pins doesn't exceed 10Mhz.
Signed-off-by: Valentin Caron <valentin.caron@...s.st.com>
---
arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index a9d2bec99014..af5ce19794e3 100644
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -2163,7 +2163,7 @@ pins1 {
<STM32_PINMUX('D', 4, AF7)>; /* USART2_RTS */
bias-disable;
drive-push-pull;
- slew-rate = <3>;
+ slew-rate = <0>;
};
pins2 {
pinmux = <STM32_PINMUX('D', 6, AF7)>, /* USART2_RX */
@@ -2181,7 +2181,7 @@ pins2 {
pinmux = <STM32_PINMUX('D', 4, AF7)>; /* USART2_RTS */
bias-disable;
drive-push-pull;
- slew-rate = <3>;
+ slew-rate = <0>;
};
pins3 {
pinmux = <STM32_PINMUX('D', 6, AF7)>; /* USART2_RX */
--
2.25.1
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