From: Krzysztof Kozlowski <krzk@kernel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Alexander Stein <alexander.stein@ew.tq-group.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Oleksij Rempel <o.rempel@pengutronix.de>,
Matthias Kaehlcke <mka@chromium.org>,
Fabio Estevam <festevam@gmail.com>,
linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH 4/8] dt-bindings: usb: microchip,usb2514: document the USB4604 hub
Date: Thu, 13 Aug 2026 11:53:43 +0200 [thread overview]
Message-ID: <20260813-visionary-fiery-saluki-ef86b5@quoll> (raw)
In-Reply-To: <20260810-msm8974-onboard-usb-v1-4-08a805768328@oss.qualcomm.com>
On Mon, Aug 10, 2026 at 03:42:35AM +0300, Dmitry Baryshkov wrote:
> The SMSC/Microchip USB4604 HSIC hub on the APQ8074 Dragonboard has its
> RESET_N pin wired to a PMIC GPIO. On this board the hub SMBus
> configuration interface is not usable (the bus pull-ups are referenced
> to 1.8V while the hub samples the strap against its 3.3V rail), so the
> hub runs in standalone mode and only needs its reset released, which
> has to be described in DT.
>
> Document the USB4604 device ID (0424:4604, the ID used when the
> upstream port operates in HSIC mode) in the onboard hub schema.
>
> Assisted-by: Claude:claude-fable-5
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-08-13 9:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-10 0:42 [PATCH 0/8] usb: misc: onboard_usb_dev: support several devices Dmitry Baryshkov
2026-08-10 0:42 ` [PATCH 1/8] dt-bindings: usb: ti,usb8041: document the TUSB8040A hub Dmitry Baryshkov
2026-08-13 9:45 ` Krzysztof Kozlowski
2026-08-10 0:42 ` [PATCH 2/8] dt-bindings: net: asix,ax88178: document the AX88179 Dmitry Baryshkov
2026-08-13 9:50 ` Krzysztof Kozlowski
2026-08-10 0:42 ` [PATCH 3/8] dt-bindings: usb: document the Prolific PL2775 USB-SATA bridge Dmitry Baryshkov
2026-08-13 9:53 ` Krzysztof Kozlowski
2026-08-10 0:42 ` [PATCH 4/8] dt-bindings: usb: microchip,usb2514: document the USB4604 hub Dmitry Baryshkov
2026-08-13 9:53 ` Krzysztof Kozlowski [this message]
2026-08-10 0:42 ` [PATCH 5/8] usb: misc: onboard_usb_dev: add support for the TI TUSB8040A hub Dmitry Baryshkov
2026-08-10 0:42 ` [PATCH 6/8] usb: misc: onboard_usb_dev: add support for the ASIX AX88179 Dmitry Baryshkov
2026-08-10 0:42 ` [PATCH 7/8] usb: misc: onboard_usb_dev: add support for the Prolific PL2775 Dmitry Baryshkov
2026-08-10 0:42 ` [PATCH 8/8] usb: misc: onboard_usb_dev: add support for the SMSC USB4604 Dmitry Baryshkov
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