From: Jiaxing Hu <gahing@gahingwoo.com>
To: Heiko Stuebner <heiko@sntech.de>
Cc: Jiaxing Hu <gahing@gahingwoo.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH RESEND] arm64: dts: rockchip: let TCPM own the USB-C VBUS on CM5-IO
Date: Sat, 24 Oct 2026 21:39:42 +1300 [thread overview]
Message-ID: <20261024083942.148860-1-gahing@gahingwoo.com> (raw)
vcc_5v0_typec0 is the switched VBUS of the USB-C port. It is the
vbus-supply of the FUSB302, but also the phy-supply of u2phy0_otg.
The PHY enables it at boot and keeps it on, so TCPM never sees
vSafe0V and a sink partner stays in SRC_ATTACH_WAIT. A USB-C dock is
not detected.
Drop the phy-supply and leave VBUS to TCPM.
Fixes: 44a48a23974b ("arm64: dts: rockchip: Add ArmSoM CM5 and CM5-IO")
Cc: stable@vger.kernel.org
Signed-off-by: Jiaxing Hu <gahing@gahingwoo.com>
---
Resent with the lists on Cc. The first copy went to Heiko only.
arch/arm64/boot/dts/rockchip/rk3576-armsom-cm5-io.dts | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3576-armsom-cm5-io.dts b/arch/arm64/boot/dts/rockchip/rk3576-armsom-cm5-io.dts
index 5958b391e..72ca49ec3 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-armsom-cm5-io.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-armsom-cm5-io.dts
@@ -306,7 +306,6 @@ &u2phy0 {
};
&u2phy0_otg {
- phy-supply = <&vcc_5v0_typec0>;
status = "okay";
};
--
2.43.0
reply other threads:[~2026-10-24 8:39 UTC|newest]
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