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

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Message-ID: <CAD=FV=VY-n2maPD6Pyy-XQqppPrTnN2yM9SxsFEhmY0FZ9U8mg@mail.gmail.com>
Date:   Wed, 22 Aug 2018 10:38:28 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Andy Gross <andy.gross@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Tomasz Figa <tfiga@...omium.org>,
        Manu Gautam <mgautam@...eaurora.org>,
        David Collins <collinsd@...eaurora.org>,
        Vivek Gautam <vivek.gautam@...eaurora.org>,
        devicetree@...r.kernel.org,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        LKML <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>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-soc@...r.kernel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/3] arm64: dts: qcom: sdm845-mtp: Add RPMh VRM/XOB regulators

Hi,

On Mon, Aug 20, 2018 at 11:18 AM, Stephen Boyd <swboyd@...omium.org> wrote:
> 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.

Yes, good suggestion.  Fixed in v3.

-Doug