linux-kernel - Re: [PATCH] arm64: dts: qcom: sc7280: Add ldo

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Date:   Mon, 25 Apr 2022 10:47:18 +0530
From:   Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
CC:     <agross@...nel.org>, <robh+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_rohkumar@...cinc.com>,
        <srinivas.kandagatla@...aro.org>, <dianders@...omium.org>,
        <swboyd@...omium.org>, <judyhsiao@...omium.org>,
        <quic_rjendra@...cinc.com>,
        Venkata Prasad Potturu <quic_potturu@...cinc.com>
Subject: Re: [PATCH] arm64: dts: qcom: sc7280: Add ldo_l17b regulator node


On 4/23/2022 9:28 PM, Bjorn Andersson wrote:
Thanks for your time Bjorn!!
> On Thu 21 Apr 09:19 CDT 2022, Srinivasa Rao Mandadapu wrote:
>
>> Add ldo_l17b in pm7325 regulator, which is required for
>> wcd codec vdd buck supply.
>>
>> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
>> Co-developed-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
>> Signed-off-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
>> ---
>>   arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi | 5 +++++
>>   1 file changed, 5 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi b/arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi
>> index b833ba1..17d0c05 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi
>> @@ -113,6 +113,11 @@
>>   			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
>>   		};
>>   
>> +		vreg_l17b_1p8: ldo17 {
>> +			regulator-min-microvolt = <1700000>;
>> +			regulator-max-microvolt = <1900000>;
> Can you confirm that this doesn't need to be in HPM mode?
HPM mode included and sent V2 patch.
>
> Thanks,
> Bjorn
>
>> +		};
>> +
>>   		vdd_px_wcd9385:
>>   		vdd_txrx:
>>   		vddpx_0:
>> -- 
>> 2.7.4
>>