linux-kernel - Re: [PATCH v2 3/4] ARM: dts: imxrt1050: increase mmc max-frequency property

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Date:   Tue, 15 Nov 2022 15:45:54 -0500
From:   Jesse Taube <mr.bossman075@...il.com>
To:     Giulio Benetti <giulio.benetti@...ettiengineering.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Abel Vesa <abelvesa@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Bough Chen <haibo.chen@....com>
Subject: Re: [PATCH v2 3/4] ARM: dts: imxrt1050: increase mmc max-frequency
 property



On 11/15/22 14:32, Giulio Benetti wrote:
> According to i.MXRT1050 Datasheet usdhc supports up to 200Mhz clock so
> let's increase max-frequency property to 200Mhz.
> 
> Cc: Jesse Taube <mr.bossman075@...il.com>
> Signed-off-by: Giulio Benetti <giulio.benetti@...ettiengineering.com>
> ---
> V1->V2:
> * set max-frequency to 200Mhz instead of removing it as suggested by
>    Bough Chen
> ---
>   arch/arm/boot/dts/imxrt1050.dtsi | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/imxrt1050.dtsi b/arch/arm/boot/dts/imxrt1050.dtsi
> index 114465e4dde6..5b1991c32748 100644
> --- a/arch/arm/boot/dts/imxrt1050.dtsi
> +++ b/arch/arm/boot/dts/imxrt1050.dtsi
> @@ -93,7 +93,7 @@ usdhc1: mmc@...c0000 {
>   			bus-width = <4>;
>   			fsl,wp-controller;
>   			no-1-8-v;
> -			max-frequency = <4000000>;
> +			max-frequency = <200000000>;
>   			fsl,tuning-start-tap = <20>;
>   			fsl,tuning-step = <2>;
>   			status = "disabled";

Acked-by: Jesse Taube <mr.bossman075@...il.com>