linux-kernel - Re: [PATCH] arm64: dts: ipq8074: add reset to SDHCI

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Message-ID: <7cb6fd46-ac80-fbc5-67f7-920934bb801c@linaro.org>
Date:   Mon, 4 Jul 2022 14:29:27 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Robert Marko <robimarko@...il.com>, agross@...nel.org,
        bjorn.andersson@...aro.org, konrad.dybcio@...ainline.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: ipq8074: add reset to SDHCI

On 04/07/2022 13:44, Robert Marko wrote:
> Add reset to SDHCI controller so it can be reset to avoid timeout issues
> after software reset due to bootloader set configuration.
> 
> Signed-off-by: Robert Marko <robimarko@...il.com>
> ---
>  arch/arm64/boot/dts/qcom/ipq8074.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> index ddafc7de6c5f..d685ca1969a3 100644
> --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> @@ -482,6 +482,7 @@ sdhc_1: mmc@...4900 {
>  				 <&gcc GCC_SDCC1_APPS_CLK>,
>  				 <&xo>;
>  			clock-names = "iface", "core", "xo";
> +			resets = <&gcc GCC_SDCC1_BCR>;

I looked at the bindings and they do not allow reset property, so does
it depend on anything?


Best regards,
Krzysztof