linux-kernel - Re: [PATCH V1 4/4] arm64: dts: qcom: hamoa-iot-evk: Enable UFS

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Message-ID: <80529f8d-8db0-4b3c-b79e-8d5a3004241e@oss.qualcomm.com>
Date: Tue, 30 Dec 2025 15:19:21 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Pradeep Pragallapati <pradeep.pragallapati@....qualcomm.com>,
        vkoul@...nel.org, neil.armstrong@...aro.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, martin.petersen@...cle.com,
        andersson@...nel.org, konradybcio@...nel.org,
        taniya.das@....qualcomm.com, dmitry.baryshkov@....qualcomm.com
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org, nitin.rawat@....qualcomm.com
Subject: Re: [PATCH V1 4/4] arm64: dts: qcom: hamoa-iot-evk: Enable UFS

On 12/30/25 9:58 AM, Pradeep Pragallapati wrote:
> 
> On 12/29/2025 5:47 PM, Konrad Dybcio wrote:
>> On 12/29/25 7:06 AM, Pradeep P V K wrote:
>>> Enable UFS for HAMOA-IOT-EVK board.
>>>
>>> Signed-off-by: Pradeep P V K <pradeep.pragallapati@....qualcomm.com>
>>> ---
>> [...]
>>
>>> +&ufs_mem_hc {
>>> +    reset-gpios = <&tlmm 238 GPIO_ACTIVE_LOW>;
>>> +
>>> +    vcc-supply = <&vreg_l17b_2p5>;
>>> +    vcc-max-microamp = <1300000>;
>> I think they should both be 1.2 A peak
>>
>> Konrad
> This (1.3 A) is as per Hamoa power grid, which is same as SM8550.

Please check again, I opened the power grid tab in the internal
documentation source that shall remain nameless and it said 1200 mA
for both regulators

Konrad