linux-kernel - Re: [PATCH v2] arm64: dts: qcom: msm8996: Move UFS

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Date:   Tue, 29 May 2018 16:31:00 +0530
From:   Vivek Gautam <vivek.gautam@...eaurora.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <andy.gross@...aro.org>,
        Manu Gautam <mgautam@...eaurora.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        linux-soc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] arm64: dts: qcom: msm8996: Move UFS_GDSC to UFS HCD

On Sat, May 26, 2018 at 12:15 AM, Bjorn Andersson
<bjorn.andersson@...aro.org> wrote:
> The UFS_GDSC backs the resources needed by the UFS HCD, rather than the
> PHY. This results in the UFS HCD occationally failing to enable some of
> its clocks.
>
> Move the UFS_GDSC reference to the UFS HCD node instead, to correct
> this.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>
> Changes since v1:
> - Dropped UFS_GDSC from phy node
>
>  arch/arm64/boot/dts/qcom/msm8996.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index 380e14591686..8c7f9ca25b53 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -654,8 +654,6 @@
>                         clocks = <&rpmcc RPM_SMD_LN_BB_CLK>,
>                                  <&gcc GCC_UFS_CLKREF_CLK>;
>                         status = "disabled";
> -
> -                       power-domains = <&gcc UFS_GDSC>;
>                 };
>
>                 ufshc@...000 {
> @@ -674,6 +672,8 @@
>                         vccq-max-microamp = <450000>;
>                         vccq2-max-microamp = <450000>;
>
> +                       power-domains = <&gcc UFS_GDSC>;
> +

Looks good.
Reviewed-by: Vivek Gautam <vivek.gautam@...eaurora.org>

Regards
Vivek
>                         clock-names =
>                                 "core_clk_src",
>                                 "core_clk",
> --
> 2.17.0
>
> --
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