linux-kernel - Re: [PATCH v10 8/9] arm64: dts: qcom: ipq9574: Add LDO regulator node

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Date:   Fri, 5 May 2023 12:29:54 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Varadarajan Narayanan <quic_varada@...cinc.com>
Cc:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        vkoul@...nel.org, kishon@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, gregkh@...uxfoundation.org,
        mturquette@...libre.com, sboyd@...nel.org, quic_wcheng@...cinc.com,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v10 8/9] arm64: dts: qcom: ipq9574: Add LDO regulator node

On Fri, 5 May 2023 at 11:23, Varadarajan Narayanan
<quic_varada@...cinc.com> wrote:
>
> Add LDO regulator node

As this LDO is provided by the PMIC, it would be nice to know why it
is modelled as an always-on regulator instead of the proper PMIC
regulator. Up to now we were doing this only for the outstanding power
rails like CX/MX or EBI.

>
> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> ---
>  Changes in v10:
>         - Add LDO regulator node
> ---
>  arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> index bdc1434..1f5d14f 100644
> --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> @@ -60,6 +60,13 @@
>                         regulator-min-microvolt = <725000>;
>                         regulator-max-microvolt = <1075000>;
>                 };
> +
> +               mp5496_l2: l2 {
> +                       regulator-min-microvolt = <1800000>;
> +                       regulator-max-microvolt = <1800000>;
> +                       regulator-boot-on;
> +                       regulator-always-on;
> +               };
>         };
>  };
>
> --
> 2.7.4
>


-- 
With best wishes
Dmitry