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Fri, 25 Apr 2025 08:18:49 -0700 (PDT) Received: from [127.0.1.1] ([185.164.142.188]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ace6e59649fsm151099766b.85.2025.04.25.08.18.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Apr 2025 08:18:48 -0700 (PDT) From: Lukasz Czechowski Date: Fri, 25 Apr 2025 17:18:09 +0200 Subject: [PATCH v2 4/5] arm64: dts: rockchip: disable unrouted USB controllers and PHY on RK3399 Puma MIME-Version: 1.0 Message-Id: <20250425-onboard_usb_dev-v2-4-4a76a474a010@thaumatec.com> References: <20250425-onboard_usb_dev-v2-0-4a76a474a010@thaumatec.com> In-Reply-To: <20250425-onboard_usb_dev-v2-0-4a76a474a010@thaumatec.com> To: Matthias Kaehlcke , Greg Kroah-Hartman , Benjamin Bara , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Klaus Goger 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 , Quentin Schulz X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250425_081850_975651_A722BA47 X-CRM114-Status: GOOD ( 10.38 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org From: Quentin Schulz 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 Signed-off-by: Lukasz Czechowski --- 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 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip