From: sashiko-bot@kernel.org
To: "Arun Iyengar" <aiyengar1990@gmail.com>
Cc: linux-usb@vger.kernel.org
Subject: Re: [PATCH 4/4] arm64: dts: rockchip: Describe the USB3 Type-A connector on Orange Pi 5/5B
Date: Tue, 10 Nov 2026 08:31:15 +0000 [thread overview]
Message-ID: <sashiko-outbox-206624@kernel.org> (raw)
In-Reply-To: <20261110-usb-port-pairing-v1-4-9307e29d2ed2@gmail.com>
> From: Arun Iyengar <aiyengar1990@gmail.com>
>
> The upper Type-A port of the Orange Pi 5 and 5B has its USB 2.0 lines
> on USB 2.0 host 1 (EHCI/OHCI) and its SuperSpeed lanes on the
> SuperSpeed-only USB 3.0 host 2 (xHCI). The lower Type-A port is USB 2.0
> only, on host 0.
>
> Describe the upper port as a usb-a-connector linked to both
> controllers, so that the USB core pairs the EHCI root hub port with the
> xHCI SuperSpeed port. Without that, a USB 3 device plugged in at boot
> is enumerated by the EHCI before the xHCI is up and stays at high
> speed.
>
> VBUS of the port is not switched (the vendor DT has it on an always-on
> 5 V rail), so it is described as coming from vcc5v0_sys.
>
> Signed-off-by: Arun Iyengar <aiyengar1990@gmail.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261110-usb-port-pairing-v1-0-9307e29d2ed2@gmail.com?part=4
next prev parent reply other threads:[~2026-11-10 8:31 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-10 7:20 [PATCH 0/4] usb: core: Pair ports of different host controllers through their connector Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar
2026-11-10 7:20 ` [PATCH 1/4] dt-bindings: usb: generic-ehci: Allow describing the root hub ports Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar
2026-11-10 7:30 ` sashiko-bot
2026-11-11 2:35 ` Chen-Yu Tsai
2026-11-11 2:35 ` Chen-Yu Tsai
2026-11-12 7:59 ` Arun Iyengar
2026-11-12 7:59 ` Arun Iyengar
2026-11-12 8:08 ` Chen-Yu Tsai
2026-11-12 8:08 ` Chen-Yu Tsai
2026-11-10 7:20 ` [PATCH 2/4] usb: core: Pair ports of different hubs through their connector Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar
2026-11-10 7:51 ` sashiko-bot
2026-11-10 7:20 ` [PATCH 3/4] usb: hub: Retry SuperSpeed for a device stuck on its USB 2.0 peer Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar
2026-11-10 8:25 ` sashiko-bot
2026-11-10 7:20 ` [PATCH 4/4] arm64: dts: rockchip: Describe the USB3 Type-A connector on Orange Pi 5/5B Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar via B4 Relay
2026-11-10 7:20 ` Arun Iyengar
2026-11-10 8:31 ` sashiko-bot [this message]
2026-11-10 10:41 ` Krzysztof Kozlowski
2026-11-10 10:41 ` Krzysztof Kozlowski
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