From: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Subject: Re: [PATCH v2] arm64: dts: qcom: hamoa-iot-evk: Add vbus regulator support for Type-A ports
Date: Tue, 9 Dec 2025 13:31:10 +0530 [thread overview]
Message-ID: <34aabb90-c81c-43eb-ba95-024f97d91afb@oss.qualcomm.com> (raw)
In-Reply-To: <6awlcjah2ajwzxzdvoch5e3vn2ztvxyjdbikffhp6efti3f4wt@swhugoqsmf6z>
On 12/9/2025 1:22 PM, Dmitry Baryshkov wrote:
> On Tue, Dec 09, 2025 at 09:47:01AM +0530, Krishna Kurapati wrote:
>> The Multiport controller on Hamoa EVK platform is connected to Two Type-A
>> ports. VBUS for each of these ports are provided by a TPS2559QWDRCTQ1
>> regulator, controlled from PMIC GPIOs.
>>
>> Add the necessary regulators and GPIO configuration to power these.
>
> Should this also include corresponding USB-A connector devices? See
> qcs6490-radxa-dragon-q6a.dts for the example of how to describe them.
>
Hi Dmitry,
I see same discussion that came up when we were trying to upstream
TypeA connectors of SA8295:
https://lore.kernel.org/all/CAA8EJppf+j6H8vPOrer1Oj6SuM=qHKXoBahtCaCr7an-cbpyOQ@mail.gmail.com/
There is no entity (either phy or dwc3) as of today that can read the
vbus from connector-A node and use it. So keeping these regulators
always on for now.
Regards,
Krishna,
>>
>> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>> Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
>> ---
>> Changes in v2:
>> - Re-ordered nodes to be in sorted order.
>>
>> Link to v1:
>> https://lore.kernel.org/all/20251208085152.2597818-1-krishna.kurapati@oss.qualcomm.com/
>>
>> arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 37 ++++++++++++++++++++++
>> 1 file changed, 37 insertions(+)
>>
>
next prev parent reply other threads:[~2025-12-09 8:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-09 4:17 Krishna Kurapati
2025-12-09 7:52 ` Dmitry Baryshkov
2025-12-09 8:01 ` Krishna Kurapati [this message]
2025-12-09 15:19 ` Dmitry Baryshkov
2025-12-09 15:31 ` Krishna Kurapati
2025-12-09 15:54 ` Dmitry Baryshkov
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