linux-kernel - Re: [PATCH v3 07/21] ARM: dts: imx7-colibri: fix 1.8V/UHS support

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Date:   Fri, 9 Aug 2019 14:48:31 +0000
From:   Marcel Ziswiler <marcel.ziswiler@...adex.com>
To:     Max Krummenacher <max.krummenacher@...adex.com>,
        "stefan@...er.ch" <stefan@...er.ch>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "michal.vokac@...ft.com" <michal.vokac@...ft.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "festevam@...il.com" <festevam@...il.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        Stefan Agner <stefan.agner@...adex.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-imx@....com" <linux-imx@....com>
Subject: Re: [PATCH v3 07/21] ARM: dts: imx7-colibri: fix 1.8V/UHS support

On Wed, 2019-08-07 at 08:26 +0000, Philippe Schenker wrote:
> From: Stefan Agner <stefan.agner@...adex.com>
> 
> Add pinmuxing and do not specify voltage restrictions for the usdhc
> instance available on the modules edge connector. This allows to use
> SD-cards with higher transfer modes if supported by the carrier
> board.
> 
> Signed-off-by: Stefan Agner <stefan.agner@...adex.com>
> Signed-off-by: Philippe Schenker <philippe.schenker@...adex.com>

Acked-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>

> ---
> 
> Changes in v3:
> - Add new commit message from Stefan's proposal on ML
> 
> Changes in v2: None
> 
>  arch/arm/boot/dts/imx7-colibri.dtsi | 23 ++++++++++++++++++++++-
>  1 file changed, 22 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi
> b/arch/arm/boot/dts/imx7-colibri.dtsi
> index 16d1a1ed1aff..67f5e0c87fdc 100644
> --- a/arch/arm/boot/dts/imx7-colibri.dtsi
> +++ b/arch/arm/boot/dts/imx7-colibri.dtsi
> @@ -326,7 +326,6 @@
>  &usdhc1 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_cd_usdhc1>;
> -	no-1-8-v;
>  	cd-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
>  	disable-wp;
>  	vqmmc-supply = <&reg_LDO2>;
> @@ -671,6 +670,28 @@
>  		>;
>  	};
>  
> +	pinctrl_usdhc1_100mhz: usdhc1grp_100mhz {
> +		fsl,pins = <
> +			MX7D_PAD_SD1_CMD__SD1_CMD	0x5a
> +			MX7D_PAD_SD1_CLK__SD1_CLK	0x1a
> +			MX7D_PAD_SD1_DATA0__SD1_DATA0	0x5a
> +			MX7D_PAD_SD1_DATA1__SD1_DATA1	0x5a
> +			MX7D_PAD_SD1_DATA2__SD1_DATA2	0x5a
> +			MX7D_PAD_SD1_DATA3__SD1_DATA3	0x5a
> +		>;
> +	};
> +
> +	pinctrl_usdhc1_200mhz: usdhc1grp_200mhz {
> +		fsl,pins = <
> +			MX7D_PAD_SD1_CMD__SD1_CMD	0x5b
> +			MX7D_PAD_SD1_CLK__SD1_CLK	0x1b
> +			MX7D_PAD_SD1_DATA0__SD1_DATA0	0x5b
> +			MX7D_PAD_SD1_DATA1__SD1_DATA1	0x5b
> +			MX7D_PAD_SD1_DATA2__SD1_DATA2	0x5b
> +			MX7D_PAD_SD1_DATA3__SD1_DATA3	0x5b
> +		>;
> +	};
> +
>  	pinctrl_usdhc3: usdhc3grp {
>  		fsl,pins = <
>  			MX7D_PAD_SD3_CMD__SD3_CMD		0x59