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Fri, 03 Apr 2026 04:37:24 -0700 (PDT) From: Anand Moon To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-riscv@lists.infradead.org (open list:RISC-V ARCHITECTURE), spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC Support), linux-kernel@vger.kernel.org (open list) Cc: Anand Moon , Han Gao , Ze Huang , Chukun Pan Subject: [PATCH linux-next v1 3/3] riscv: dts: spacemit: k1-bananapi-f3: Correct USB hub power hierarchy Date: Wed, 25 Mar 2026 13:46:10 +0530 Message-ID: <20260325081700.1502-4-linux.amoon@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260325081700.1502-1-linux.amoon@gmail.com> References: <20260325081700.1502-1-linux.amoon@gmail.com> Precedence: bulk X-Mailing-List: spacemit@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Link the usb3_hub_5v regulator to the USB controller’s vbus-supply to ensure the USB 3.0 stack is properly powered as per the schematics. In addition, align the USB hub regulator with the board schematics by renaming it to VCC5V0_HUB and marking it as regulator-always-on to maintain power stability. Cc: Han Gao Cc: Ze Huang Cc: Chukun Pan Signed-off-by: Anand Moon --- arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts index c35f4763c800..3dbdf53b6d8e 100644 --- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts +++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts @@ -83,9 +83,10 @@ reg_5v_vbus: regulator-usb3-vbus-5v { usb3_hub_5v: regulator-usb3-hub-5v { compatible = "regulator-fixed"; - regulator-name = "USB30_HUB"; + regulator-name = "VCC5V0_HUB"; regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; + regulator-always-on; vin-supply = <®_vcc5v0_sys>; gpio = <&gpio K1_GPIO(123) GPIO_ACTIVE_HIGH>; enable-active-high; @@ -361,6 +362,7 @@ &usb_dwc3 { dr_mode = "host"; #address-cells = <1>; #size-cells = <0>; + vbus-supply = <&usb3_hub_5v>; status = "okay"; hub_2_0: hub@1 { -- 2.53.0