From: Paul Walmsley <pjw@kernel.org>
To: "Frédéric Mahé" <frederic.mahe@cirad.fr>
Cc: Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>,
linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] riscv: defconfig: enable onboard USB hub support
Date: Tue, 10 Nov 2026 18:13:52 -0700 (MST) [thread overview]
Message-ID: <857db758-8aeb-178f-6acc-b163ba636863@kernel.org> (raw)
In-Reply-To: <20261109175555.323067-1-frederic.mahe@cirad.fr>
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On Mon, 9 Nov 2026, Frédéric Mahé wrote:
> The Banana Pi BPI-F3 (SpacemiT K1) has a VL817 USB 3.0 hub behind its
> DWC3 controller. The hub's power and reset come from the
> "usb2109,2817" and "usb2109,817" nodes in the device tree, which need
> the onboard_usb_dev driver. Without it, the hub regulator (USB30_HUB)
> stays off and the board's four USB-A ports are dead.
>
> Enable USB_ONBOARD_DEV as a module, as arm64 defconfig does.
>
> Tested on a Banana Pi BPI-F3 with v7.4-rc1 (dwc3 enabled as a module):
> the module autoloads, the hub comes up on both buses and a USB mouse
> on a USB-A port works. Without it, only the root hubs are seen.
>
> This patch was prepared with the help of an AI assistant (Claude),
> which also ran the build and boot tests.
>
> Signed-off-by: Frédéric Mahé <frederic.mahe@cirad.fr>
Thanks, queued for v7.4-rc.
- Paul
prev parent reply other threads:[~2026-11-11 1:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-09 17:55 Frédéric Mahé
2026-11-11 1:13 ` Paul Walmsley [this message]
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