2021-10-20 15:06:31

by Erwan Le Ray

Subject: [PATCH 1/1] ARM: dts: stm32: add pull-up to USART3 and UART7 RX pins on DKx boards

Add pull-up to USART3 and UART7 RX pins to allow loop tests between USART3
and UART7 on stm32mp15 DKx boards.

Signed-off-by: Erwan Le Ray <[email protected]>

diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index e13c2a9762b8..fe6e6f50151d 100644
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -1816,7 +1816,7 @@
};
pins2 {
pinmux = <STM32_PINMUX('E', 7, AF7)>; /* UART7_RX */
- bias-disable;
+ bias-pull-up;
};
};

@@ -1826,7 +1826,7 @@
};
pins2 {
pinmux = <STM32_PINMUX('E', 7, AF7)>; /* UART7_RX */
- bias-disable;
+ bias-pull-up;
};
};

@@ -1971,7 +1971,7 @@
pins2 {
pinmux = <STM32_PINMUX('B', 12, AF8)>, /* USART3_RX */
<STM32_PINMUX('I', 10, AF8)>; /* USART3_CTS_NSS */
- bias-disable;
+ bias-pull-up;
};
};

@@ -1988,7 +1988,7 @@
};
pins3 {
pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */
- bias-disable;
+ bias-pull-up;
};
};

@@ -2012,7 +2012,7 @@
pins2 {
pinmux = <STM32_PINMUX('B', 12, AF8)>, /* USART3_RX */
<STM32_PINMUX('B', 13, AF7)>; /* USART3_CTS_NSS */
- bias-disable;
+ bias-pull-up;
};
};

@@ -2029,7 +2029,7 @@
};
pins3 {
pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */
- bias-disable;
+ bias-pull-up;
};
};

--
2.17.1

2021-11-25 15:12:50

by Alexandre TORGUE

Subject: Re: [PATCH 1/1] ARM: dts: stm32: add pull-up to USART3 and UART7 RX pins on DKx boards

On 10/20/21 5:03 PM, Erwan Le Ray wrote:
> Add pull-up to USART3 and UART7 RX pins to allow loop tests between USART3
> and UART7 on stm32mp15 DKx boards.
>
> Signed-off-by: Erwan Le Ray <[email protected]>

Applied on stm32-next.

thanks
Alex


>
> diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
> index e13c2a9762b8..fe6e6f50151d 100644
> --- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
> +++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
> @@ -1816,7 +1816,7 @@
> };
> pins2 {
> pinmux = <STM32_PINMUX('E', 7, AF7)>; /* UART7_RX */
> - bias-disable;
> + bias-pull-up;
> };
> };
>
> @@ -1826,7 +1826,7 @@
> };
> pins2 {
> pinmux = <STM32_PINMUX('E', 7, AF7)>; /* UART7_RX */
> - bias-disable;
> + bias-pull-up;
> };
> };
>
> @@ -1971,7 +1971,7 @@
> pins2 {
> pinmux = <STM32_PINMUX('B', 12, AF8)>, /* USART3_RX */
> <STM32_PINMUX('I', 10, AF8)>; /* USART3_CTS_NSS */
> - bias-disable;
> + bias-pull-up;
> };
> };
>
> @@ -1988,7 +1988,7 @@
> };
> pins3 {
> pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */
> - bias-disable;
> + bias-pull-up;
> };
> };
>
> @@ -2012,7 +2012,7 @@
> pins2 {
> pinmux = <STM32_PINMUX('B', 12, AF8)>, /* USART3_RX */
> <STM32_PINMUX('B', 13, AF7)>; /* USART3_CTS_NSS */
> - bias-disable;
> + bias-pull-up;
> };
> };
>
> @@ -2029,7 +2029,7 @@
> };
> pins3 {
> pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */
> - bias-disable;
> + bias-pull-up;
> };
> };
>
>