Re: [PATCH 7/9] arm64: dts: imx8ulp-evk: Enable LPUART7

[Frank Li]

On Wed, Jul 15, 2026 at 08:33:08PM +0800, Peng Fan (OSS) wrote:
> From: Sherry Sun <sherry.sun@xxxxxxx>
>
> The i.MX 8ULP EVK proto1B revision routes LPUART7 TX/RX to the FT4232
> PortD connector (J25/J26 pins 2-3). Enable the port by default so the
> additional serial console is available out of the box.
>
> Signed-off-by: Sherry Sun <sherry.sun@xxxxxxx>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
>  arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
> index 66e99cd24040f..938ead54ff50c 100644
> --- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
> @@ -179,6 +179,14 @@ bluetooth {
>  	};
>  };
>
> +&lpuart7 {
> +	/* FT4232 PortD: need to connect J25/J26 2-3 */
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&pinctrl_lpuart7>;
> +	pinctrl-1 = <&pinctrl_lpuart7>;

The same question here?

why need sleep state

Frank

> +	status = "okay";
> +};
> +
>  &lpi2c7 {
>  	#address-cells = <1>;
>  	#size-cells = <0>;
> @@ -370,6 +378,13 @@ MX8ULP_PAD_PTE8__LPUART6_CTS_B	0x3
>  		>;
>  	};
>
> +	pinctrl_lpuart7: lpuart7grp {
> +		fsl,pins = <
> +			MX8ULP_PAD_PTF22__LPUART7_TX	0x3
> +			MX8ULP_PAD_PTF23__LPUART7_RX	0x3
> +		>;
> +	};
> +
>  	pinctrl_lpi2c7: lpi2c7grp {
>  		fsl,pins = <
>  			MX8ULP_PAD_PTE12__LPI2C7_SCL	0x20
>
> --
> 2.34.1
>
>