linux-kernel - Re: [PATCH] phy: qcom-qmp-usb: Set regulator load before enabling

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Message-ID: <775169af-7e03-41b8-a451-e5332e1ef2fc@oss.qualcomm.com>
Date: Thu, 18 Dec 2025 10:05:10 +0530
From: Faisal Hassan <faisal.hassan@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Vinod Koul <vkoul@...nel.org>
Cc: Kishon Vijay Abraham I <kishon@...nel.org>,
        Krishna Kurapati <quic_kriskura@...cinc.com>,
        Johan Hovold <johan+linaro@...nel.org>,
        Chenyuan Yang
 <chenyuan0y@...il.com>,
        Varadarajan Narayanan <quic_varada@...cinc.com>,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] phy: qcom-qmp-usb: Set regulator load before enabling



On 9/5/2025 7:16 PM, Dmitry Baryshkov wrote:
> On Fri, Sep 05, 2025 at 03:42:43PM +0530, Faisal Hassan wrote:
>> Set the regulator load before enabling the regulators to ensure stable
>> operation and proper power management on platforms where regulators are
>> shared between the QMP USB PHY and other IP blocks.
>>
>> Introduce a regulator data structure with explicit enable load values and
>> use the regulator framework's `init_load_uA` field along with
>> `devm_regulator_bulk_get_const()` to ensure that `regulator_set_load()` is
>> applied automatically before the first enable, providing consistent power
>> management behavior across platforms.
>>
>> Signed-off-by: Faisal Hassan <faisal.hassan@....qualcomm.com>
>> ---
>>  drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 27 ++++++-------------------
>>  1 file changed, 6 insertions(+), 21 deletions(-)
>>
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> 
> 

Hi Vinod,

Gentle ping on this.

Is this ready to be applied, or do you need anything else from me?

Thanks,
Faisal