linux-kernel - Re: [PATCH v4 8/8] arm64: dts: qcom: sc7180: Update QUSB2 V2 Phy params for SC7180 IDP device

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Date:   Mon, 03 Feb 2020 16:53:37 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Doug Anderson <dianders@...omium.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sandeep Maheswaram <sanm@...eaurora.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Sandeep Maheswaram <sanm@...eaurora.org>
Subject: Re: [PATCH v4 8/8] arm64: dts: qcom: sc7180: Update QUSB2 V2 Phy params for SC7180 IDP device

Quoting Sandeep Maheswaram (2020-01-29 05:51:59)
> Overriding the QUSB2 V2 Phy tuning parameters for SC7180 IDP device.
> 
> Signed-off-by: Sandeep Maheswaram <sanm@...eaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7180-idp.dts | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> index 388f50a..826cf02 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> +++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> @@ -276,9 +276,11 @@
>         vdda-pll-supply = <&vreg_l11a_1p8>;
>         vdda-phy-dpdm-supply = <&vreg_l17a_3p0>;
>         qcom,imp-res-offset-value = <8>;
> -       qcom,hstx-trim-value = <QUSB2_V2_HSTX_TRIM_21_6_MA>;
> -       qcom,preemphasis-level = <QUSB2_V2_PREEMPHASIS_5_PERCENT>;
> +       qcom,preemphasis-level = <QUSB2_V2_PREEMPHASIS_15_PERCENT>;
>         qcom,preemphasis-width = <QUSB2_V2_PREEMPHASIS_WIDTH_HALF_BIT>;
> +       qcom,bias-ctrl-value = <0x22>;
> +       qcom,charge-ctrl-value = <3>;
> +       qcom,hsdisc-trim-value = <0>;

Actually, I'd prefer it uses /bits/ 8 here if it's just 8 bits.