[PATCH 1/6] ARM: dts: stm32: Add alternate pinmux for UART3 pins

Patrice CHOTARD patrice.chotard at foss.st.com
Wed Jun 15 08:35:21 CEST 2022


Hi Marek

On 6/13/22 11:55, Marek Vasut wrote:
> Add another mux option for UART3 pins, this is used on DRC Compact board.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
>  arch/arm/dts/stm32mp15-pinctrl.dtsi | 41 +++++++++++++++++++++++++++++
>  1 file changed, 41 insertions(+)
> 
> diff --git a/arch/arm/dts/stm32mp15-pinctrl.dtsi b/arch/arm/dts/stm32mp15-pinctrl.dtsi
> index f0d66d8c6e3..823ef2e2aab 100644
> --- a/arch/arm/dts/stm32mp15-pinctrl.dtsi
> +++ b/arch/arm/dts/stm32mp15-pinctrl.dtsi
> @@ -2134,6 +2134,47 @@
>  		};
>  	};
>  
> +	usart3_pins_e: usart3-4 {
> +		pins1 {
> +			pinmux = <STM32_PINMUX('B', 10, AF7)>, /* USART3_TX */
> +				 <STM32_PINMUX('G', 8, AF8)>; /* USART3_RTS */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <0>;
> +		};
> +		pins2 {
> +			pinmux = <STM32_PINMUX('B', 11, AF7)>, /* USART3_RX */
> +				 <STM32_PINMUX('D', 11, AF7)>; /* USART3_CTS_NSS */
> +			bias-pull-up;
> +		};
> +	};
> +
> +	usart3_idle_pins_e: usart3-idle-4 {
> +		pins1 {
> +			pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */
> +				 <STM32_PINMUX('D', 11, ANALOG)>; /* USART3_CTS_NSS */
> +		};
> +		pins2 {
> +			pinmux = <STM32_PINMUX('G', 8, AF8)>; /* USART3_RTS */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <0>;
> +		};
> +		pins3 {
> +			pinmux = <STM32_PINMUX('B', 11, AF7)>; /* USART3_RX */
> +			bias-pull-up;
> +		};
> +	};
> +
> +	usart3_sleep_pins_e: usart3-sleep-4 {
> +		pins {
> +			pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */
> +				 <STM32_PINMUX('G', 8, ANALOG)>, /* USART3_RTS */
> +				 <STM32_PINMUX('D', 11, ANALOG)>, /* USART3_CTS_NSS */
> +				 <STM32_PINMUX('B', 11, ANALOG)>; /* USART3_RX */
> +		};
> +	};
> +
>  	usbotg_hs_pins_a: usbotg-hs-0 {
>  		pins {
>  			pinmux = <STM32_PINMUX('A', 10, ANALOG)>; /* OTG_ID */
Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>

Thanks
Patrice


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