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@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index e15a3b2a9b399bfa87a2a1209dcee66be5e24604..e86d989dd351d3677e3a6f067e2745aeb9ba6bcc 100644 (file)
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -2178,7 +2178,7 @@
                                 <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 */
@@ -2196,7 +2196,7 @@
                        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 */