linux-kernel - Re: [PATCH 09/14] arm64: dts: qcom: sm6350: add refgen regulator and use it for DSI

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Message-ID: <4d815ed8-18db-462b-80d9-9768b51a9788@oss.qualcomm.com>
Date: Fri, 26 Sep 2025 15:27:24 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Luca Weiss <luca.weiss@...rphone.com>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        cros-qcom-dts-watchers@...omium.org
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 09/14] arm64: dts: qcom: sm6350: add refgen regulator and
 use it for DSI

On 9/23/25 9:17 AM, Luca Weiss wrote:
> Hi Dmitry,
> 
> On Sun Sep 21, 2025 at 9:09 AM CEST, Dmitry Baryshkov wrote:
>> Add the refgen regulator block and use it for the DSI controller.
>>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
>> ---
>>  arch/arm64/boot/dts/qcom/sm6350.dtsi | 8 ++++++++
>>  1 file changed, 8 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
>> index 8459b27cacc72a4827a2e289e669163ad6250059..dd009569a6683a25f13b068e3e0bd8746b2ac501 100644
>> --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
>> @@ -1768,6 +1768,12 @@ usb_1_hsphy: phy@...3000 {
>>  			resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
>>  		};
>>  
>> +		refgen: regulator@...7000 {
>> +			compatible = "qcom,sm6350-refgen-regulator",
>> +				     "qcom,sm8250-refgen-regulator";
>> +			reg = <0x0 0x088e7000 0x0 0x84>;
> 
> Are you sure the size is 0x84? Downstream and hwio_bitra_V1.cmm would
> suggest size to be 0x60.
> 
> For sc7280, hwio_kodiak_E5.0.cmm does say 0x84 for refgen.

0x60

moreover, I see that there are two refgen regulators..

Konrad