Re: [PATCH 1/4] ARM: dts: Activate pullups in the console pins on rv1108-elgin-r1【请注意，邮件由u-boot-bounces at lists.denx.de代发】

[Kever Yang]

Hi Otavio,


On 2020/3/14 上午1:42, Otavio Salvador wrote:
> In order to make the console pins more robust to noise, activate
> the pullups and increase its drive strength.
>
> Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>


Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
>
>   arch/arm/dts/rv1108-elgin-r1.dts | 11 +++++++++++
>   1 file changed, 11 insertions(+)
>
> diff --git a/arch/arm/dts/rv1108-elgin-r1.dts b/arch/arm/dts/rv1108-elgin-r1.dts
> index 32b95940b0..83e8b31838 100644
> --- a/arch/arm/dts/rv1108-elgin-r1.dts
> +++ b/arch/arm/dts/rv1108-elgin-r1.dts
> @@ -40,9 +40,20 @@
>   };
>   
>   &uart2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart2m0_xfer_pullup>;
>   	status = "okay";
>   };
>   
>   &usb20_otg {
>   	status = "okay";
>   };
> +
> +&pinctrl {
> +	uart2m0 {
> +		uart2m0_xfer_pullup: uart2m0-xfer-pullup {
> +			rockchip,pins = <2 RK_PD2 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
> +					<2 RK_PD1 RK_FUNC_1 &pcfg_pull_up_drv_8ma>;
> +		};
> +	};
> +};