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Mon, 04 Dec 2023 06:44:53 -0800 (PST) Received: from localhost.localdomain ([49.205.242.26]) by smtp.gmail.com with ESMTPSA id l6-20020a170902d34600b001cfb99d8b82sm6446815plk.136.2023.12.04.06.44.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Dec 2023 06:44:52 -0800 (PST) From: Anand Moon To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl Cc: Anand Moon , linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 2/2] arm64: dts: amlogic: Used onboard usb hub reset on odroid n2 Date: Mon, 4 Dec 2023 20:14:26 +0530 Message-ID: <20231204144429.45197-3-linux.amoon@gmail.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231204144429.45197-1-linux.amoon@gmail.com> References: <20231204144429.45197-1-linux.amoon@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231204_064456_293331_1FA8F6FD X-CRM114-Status: GOOD ( 16.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Odroid n2/n2+ previously use gpio-hog to reset the usb hub, switch to used on-board usb hub reset to enable the usb hub and enable power to hub. Signed-off-by: Anand Moon --- V6:none V5:none V4:none V3:none V2:none V1:none --- .../dts/amlogic/meson-g12b-odroid-n2.dtsi | 36 ++++++++++++------- 1 file changed, 24 insertions(+), 12 deletions(-) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi index 91c9769fda20..9e671444eca6 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi @@ -31,6 +31,30 @@ hub_5v: regulator-hub_5v { enable-active-high; }; + /* USB hub supports both USB 2.0 and USB 3.0 root hub */ + usb-hub { + dr_mode = "host"; + #address-cells = <1>; + #size-cells = <0>; + + /* 2.0 hub on port 1 */ + hub_2_0: hub@1 { + compatible = "usb5e3,610"; + reg = <1>; + peer-hub = <&hub_3_0>; + vdd-supply = <&usb_pwr_en>; + }; + + /* 3.0 hub on port 4 */ + hub_3_0: hub@2 { + compatible = "usb5e3,620"; + reg = <2>; + peer-hub = <&hub_2_0>; + reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>; + vdd-supply = <&vcc_5v>; + }; + }; + sound { compatible = "amlogic,axg-sound-card"; model = "ODROID-N2"; @@ -234,18 +258,6 @@ &gpio { "PIN_3", /* GPIOX_17 */ "PIN_5", /* GPIOX_18 */ "PIN_36"; /* GPIOX_19 */ - /* - * WARNING: The USB Hub on the Odroid-N2 needs a reset signal - * to be turned high in order to be detected by the USB Controller - * This signal should be handled by a USB specific power sequence - * in order to reset the Hub when USB bus is powered down. - */ - usb-hub-hog { - gpio-hog; - gpios = ; - output-high; - line-name = "usb-hub-reset"; - }; }; &i2c3 {