linux-kernel - Re: [PATCH v3 3/4] ARM: dts: imxrt1050: increase mmc max-frequency property

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Message-ID: <3149ce35-14bb-7df0-b578-b426b8e365fa@benettiengineering.com>
Date:   Wed, 16 Nov 2022 21:41:15 +0100
From:   Giulio Benetti <giulio.benetti@...ettiengineering.com>
To:     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>,
        Jesse Taube <mr.bossman075@...il.com>
Subject: Re: [PATCH v3 3/4] ARM: dts: imxrt1050: increase mmc max-frequency
 property

On 16/11/22 21:35, 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>
> Acked-by: Jesse Taube <mr.bossman075@...il.com>
> ---
> V1->V2:
> * nothing done

Pardon:
V1->V2:
* set max-frequency to 200Mhz instead of removing it as suggested by
   Bough Chen

-- 
Giulio Benetti
CEO/CTO@...etti Engineering sas

> V2->V3:
> * added Jesse Taube's Acked-by:
> ---
>   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";