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From: Lukasz Czechowski <lukasz.czechowski@thaumatec.com>
To: Matthias Kaehlcke <mka@chromium.org>,
	 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	 Benjamin Bara <benjamin.bara@skidata.com>,
	Rob Herring <robh@kernel.org>,
	 Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	 Klaus Goger <klaus.goger@theobroma-systems.com>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	 devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	 linux-rockchip@lists.infradead.org,
	 Lukasz Czechowski <lukasz.czechowski@thaumatec.com>,
	 Quentin Schulz <quentin.schulz@cherry.de>
Subject: [PATCH v2 4/5] arm64: dts: rockchip: disable unrouted USB controllers and PHY on RK3399 Puma
Date: Fri, 25 Apr 2025 17:18:09 +0200	[thread overview]
Message-ID: <20250425-onboard_usb_dev-v2-4-4a76a474a010@thaumatec.com> (raw)
In-Reply-To: <20250425-onboard_usb_dev-v2-0-4a76a474a010@thaumatec.com>

From: Quentin Schulz <quentin.schulz@cherry.de>

The u2phy1_host port is the part of the USB PHY1 (namely the
HOST1_DP/DM lanes) which routes directly to the USB2.0 HOST
controller[1]. The other lanes of the PHY are routed to the USB3.0 OTG
controller (dwc3), which we do use.

The HOST1_DP/DM lanes aren't routed on RK3399 Puma so let's simply
disable the USB2.0 controllers and associated part in USB2.0 PHY.

No intended functional change.

[1] https://rockchip.fr/Rockchip%20RK3399%20TRM%20V1.3%20Part2.pdf
    Chapter 2 USB2.0 PHY
Fixes: 2c66fc34e945 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Lukasz Czechowski <lukasz.czechowski@thaumatec.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index dd5a9bca26d1d221607e73071685d5774330d760..5c1162e2f34f9c9786da1f774dffa71adda23dbc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -579,10 +579,6 @@ &u2phy1 {
 	u2phy1_otg: otg-port {
 		status = "okay";
 	};
-
-	u2phy1_host: host-port {
-		status = "okay";
-	};
 };
 
 &usbdrd3_1 {
@@ -616,11 +612,3 @@ hub_3_0: hub@2 {
 		vdd2-supply = <&vcc3v3_sys>;
 	};
 };
-
-&usb_host1_ehci {
-	status = "okay";
-};
-
-&usb_host1_ohci {
-	status = "okay";
-};

-- 
2.43.0


  parent reply	other threads:[~2025-04-25 15:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-25 15:18 [PATCH v2 0/5] Fix onboard USB hub instability on RK3399 Puma SoM Lukasz Czechowski
2025-04-25 15:18 ` [PATCH v2 1/5] usb: misc: onboard_usb_dev: fix support for Cypress HX3 hubs Lukasz Czechowski
2025-05-13 16:12   ` Heiko Stübner
2025-04-25 15:18 ` [PATCH v2 2/5] dt-bindings: usb: cypress,hx3: Add support for all variants Lukasz Czechowski
2025-05-09 18:38   ` Rob Herring (Arm)
2025-05-15 11:43   ` Heiko Stübner
2025-05-15 11:49     ` Greg Kroah-Hartman
2025-05-15 12:42       ` Heiko Stübner
2025-04-25 15:18 ` [PATCH v2 3/5] arm64: dts: rockchip: fix internal USB hub instability on RK3399 Puma Lukasz Czechowski
2025-04-25 15:18 ` Lukasz Czechowski [this message]
2025-04-25 15:18 ` [PATCH v2 5/5] arm64: dts: rockchip: disable unrouted USB controllers and PHY on RK3399 Puma with Haikou Lukasz Czechowski
2025-05-15 12:50 ` (subset) [PATCH v2 0/5] Fix onboard USB hub instability on RK3399 Puma SoM Heiko Stuebner

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