linux-kernel - Re: [PATCH 2/2] ARM: dts: imx6: pfla02: Fix SD card reboot problem

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Message-ID: <20230704081712.7dyj2mspj2m25rp7@pengutronix.de>
Date:   Tue, 4 Jul 2023 10:17:12 +0200
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     Andrej Picej <andrej.picej@...ik.com>
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, upstream@...tec.de
Subject: Re: [PATCH 2/2] ARM: dts: imx6: pfla02: Fix SD card reboot problem

On 23-07-04, Andrej Picej wrote:
> If regulator is not marked as always-on the regulator gets disabled on
> reboot breaking the next boot.
> 
> Signed-off-by: Andrej Picej <andrej.picej@...ik.com>
> ---
>  arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
> index 80adb2a02cc9..25d6a036d5b8 100644
> --- a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
> @@ -192,6 +192,7 @@ vdd_3v3_pmic_io_reg: ldo6 {
>  			vdd_sd0_reg: ldo9 {
>  				regulator-min-microvolt = <3300000>;
>  				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;

I think this is the supply for the sd-card, so you can make use of
'vmmc-supply'.

Regards,
  Marco

>  			};
>  
>  			vdd_sd1_reg: ldo10 {
> -- 
> 2.25.1
> 
> 
>