From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Akash Kumar <akash.kumar@oss.qualcomm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH v2] arm64: dts: qcom: qcs6490-rb3gen2: Enable USB2 controller Micro-USB OTG
Date: Thu, 12 Feb 2026 10:03:33 +0100 [thread overview]
Message-ID: <0d707127-4f86-4e53-ac6f-a5c85c531e08@oss.qualcomm.com> (raw)
In-Reply-To: <20260211052146.3760500-1-akash.kumar@oss.qualcomm.com>
On 2/11/26 6:18 AM, Akash Kumar wrote:
> Enable the secondary USB controller (USB2) and its High-Speed PHY to
> support OTG functionality via a Micro-USB connector.
>
> Define a dedicated 'usb2-connector' node using the 'gpio-usb-b-connector'
> compatible to handle ID and VBUS detection. Link this connector to the
> DWC3 controller via OF graph ports to satisfy schema requirements and
> enable role switching.
>
> Specific hardware configuration:
> - ID pin: TLMM 61
> - VBUS detection: PM7325 GPIO 9
> - VBUS supply: Fixed regulator controlled by TLMM 63
> - Define a gpio-usb-b-connector node for Micro-USB support, mapping the
> ID pin to TLMM 61 and VBUS detection to PM7325 GPIO 9.
> - Add the 'vdd_micro_usb_vbus' fixed regulator (controlled by TLMM 63) to
> supply VBUS to the connector.
> - Add the 'usb2_id_detect' pinctrl state to configure GPIO 61 for ID
> detection.
> - Enable &usb_2_hsphy and populate necessary voltage supplies (VDDA PLL,
> VDDA 1.8V, VDDA 3.3V).
>
> Signed-off-by: Akash Kumar <akash.kumar@oss.qualcomm.com>
> ---
> v2: Fixed minor comments on v1: https://lore.kernel.org/all/ad294a50-027f-4caa-a9b4-e145f709b50a@oss.qualcomm.com/
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
prev parent reply other threads:[~2026-02-12 9:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-11 5:18 Akash Kumar
2026-02-11 6:12 ` Dmitry Baryshkov
2026-02-12 9:03 ` Konrad Dybcio [this message]
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