linux-kernel - Re: [PATCH 2/3] arm64: dts: qcom: sdm845-mtp: Add RPMh VRM/XOB regulators

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Message-ID: <153478912722.28926.1278085207557745493@swboyd.mtv.corp.google.com>
Date:   Mon, 20 Aug 2018 11:18:47 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andy Gross <andy.gross@...aro.org>,
        Douglas Anderson <dianders@...omium.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>, tfiga@...omium.org,
        Manu Gautam <mgautam@...eaurora.org>,
        David Collins <collinsd@...eaurora.org>,
        Vivek Gautam <vivek.gautam@...eaurora.org>,
        Douglas Anderson <dianders@...omium.org>,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        David Brown <david.brown@...aro.org>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>, linux-soc@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/3] arm64: dts: qcom: sdm845-mtp: Add RPMh VRM/XOB regulators

Quoting Douglas Anderson (2018-08-10 14:51:49)
> @@ -20,6 +21,450 @@
>         chosen {
>                 stdout-path = "serial0:115200n8";
>         };
> +
> +       vph_pwr: vph-pwr-regulator {
> +               compatible = "regulator-fixed";
> +               regulator-name = "vph_pwr";
> +               regulator-min-microvolt = <3700000>;
> +               regulator-max-microvolt = <3700000>;
> +       };
> +
> +       /*
> +        * Apparently RPMh does not provide support for PM8998 S4 because it
> +        * is always-on; model it as a fixed regulator.
> +        */
> +       vreg_s4a_1p8: pm8998-smps4 {
> +               compatible = "regulator-fixed";
> +               regulator-name = "vreg_s4a_1p8";
> +
> +               regulator-min-microvolt = <1800000>;
> +               regulator-max-microvolt = <1800000>;
> +
> +               regulator-always-on;
> +               regulator-boot-on;

Can vin be vph_pwr? That would properly model this.

> +       };
> +};