linux-kernel - Re: [PATCH v4] arm64: dts: rockchip: add usb typec host support to rk3588-jaguar

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Message-ID: <c44c06ef-8a21-4e2f-9230-f30cea024baf@cherry.de>
Date: Fri, 28 Feb 2025 16:31:24 +0100
From: Quentin Schulz <quentin.schulz@...rry.de>
To: Heiko Stuebner <heiko@...ech.de>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
 dse@...umatec.com, Heiko Stuebner <heiko.stuebner@...rry.de>
Subject: Re: [PATCH v4] arm64: dts: rockchip: add usb typec host support to
 rk3588-jaguar

Hi Heiko,

On 2/28/25 4:08 PM, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner@...rry.de>
> 
> Jaguar has two type-c ports connected to fusb302 controllers that can
> work both in host and device mode and can also run in display-port
> altmode.
> 
> While these ports can work in dual-role data mode, they do not support
> powering the device itself as power-sink. This causes issues because
> the current infrastructure does not cope well with dual-role data
> without dual-role power.
> 
> So add the necessary nodes for the type-c controllers as well as enable
> the relevant core usb nodes. So far host modes works reliably, but
> device-mode does not. So devicemode needs more investigation.
> 
> Signed-off-by: Heiko Stuebner <heiko.stuebner@...rry.de>
> Tested-by: Quentin Schulz <quentin.schulz@...rry.de>

Reviewed-by: Quentin Schulz <quentin.schulz@...rry.de>

Thanks!
Quentin