linux-kernel - Re: [PATCH V3 2/2] arm64: dts: qcom: sc7280: Add reset entries for SDCC controllers

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Date:   Fri, 1 Apr 2022 17:09:58 -0500
From:   Stephen Boyd <swboyd@...omium.org>
To:     Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>, agross@...nel.org,
        bjorn.andersson@...aro.org, devicetree@...r.kernel.org,
        krzk+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
        robh+dt@...nel.org, ulf.hansson@...aro.org
Cc:     quic_rampraka@...cinc.com, quic_pragalla@...cinc.com,
        quic_sartgarg@...cinc.com, quic_nitirawa@...cinc.com,
        quic_sayalil@...cinc.com
Subject: Re: [PATCH V3 2/2] arm64: dts: qcom: sc7280: Add reset entries for
 SDCC controllers

Quoting Shaik Sajida Bhanu (2022-03-17 08:49:25)
> Add gcc hardware reset entries for eMMC and SD card.
>
> Signed-off-by: Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sc7280.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index c07765d..cd50ea3 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -881,6 +881,10 @@
>                         mmc-hs400-1_8v;
>                         mmc-hs400-enhanced-strobe;
>
> +                       /* gcc hardware reset entry for eMMC */

Please don't add this worthless comment.

> +                       resets = <&gcc GCC_SDCC1_BCR>;
> +                       reset-names = "core_reset";

A "_reset" postfix is redundant. In fact, reset-names shouldn't even be
required.

> +
>                         sdhc1_opp_table: opp-table {
>                                 compatible = "operating-points-v2";
>
> @@ -2686,6 +2690,10 @@
>
>                         qcom,dll-config = <0x0007642c>;
>
> +                       /* gcc hardware reset entry for SD card */

Please don't add this worthless comment.

> +                       resets = <&gcc GCC_SDCC2_BCR>;
> +                       reset-names = "core_reset";
> +
>                         sdhc2_opp_table: opp-table {
>                                 compatible = "operating-points-v2";
>