From patchwork Thu Apr 24 06:21:54 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Icenowy Zheng X-Patchwork-Id: 885121 Received: from sender4-op-o12.zoho.com (sender4-op-o12.zoho.com [136.143.188.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 58409207DFE; Thu, 24 Apr 2025 06:22:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.12 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745475756; cv=pass; b=AvaGCkM411bL6anUYAkA/QGSZ6gEmvDLw2kYzLc4Wfk+vxmTAUY6GfnGTWLcoaOljiFpsxkarzLCFJZ6xaNHZuWa2ssypdATPJ0L9T4BtJcIifQsvzd9KgSAGOe0RkcGpGFCRYbqUkFlO8k/XVB3YUEwBcnDsMXTDxlZlygipNI= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745475756; c=relaxed/simple; bh=Hsya3hwoUK8Ds+oFmJkETUofzArkqVuMq/FiU0wxbT0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MvhrRn4PSs/RA9KSZLGC1NU/9HID8GBtpUUxVRrr5ypQ2DZeQzPgtVTfkYvqwhSG2JP/GiW6epaWhS12N8CUul50i5A8iuPa3MP1TaTk4LHgXZh4qXumaCq9HugaKV/JmfyfBpa0vbSBqFpku2SmLl4cs1OqOBB/9oEa0gnspdA= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=icenowy.me; spf=pass smtp.mailfrom=icenowy.me; dkim=pass (2048-bit key) header.d=icenowy.me header.i=uwu@icenowy.me header.b=aTmw7cA0; arc=pass smtp.client-ip=136.143.188.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=icenowy.me Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=icenowy.me Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=icenowy.me header.i=uwu@icenowy.me header.b="aTmw7cA0" ARC-Seal: i=1; a=rsa-sha256; t=1745475729; cv=none; d=zohomail.com; s=zohoarc; b=kDArssAjro99bi32ehmZfpQjev/z2RBPR3f4PwgXnYPpQjWPxuGrhX2gTQhwX6DeyIm9kTYxhi/klXB+pi+hwHPBx17ODPMIw2JS3r/E7K+0LtlLu9aknopkwB8NM2b3Fs1Sdr9sJFOlq9XbgsFP/+w9pC7SYN1eNwg6/zDSF2A= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1745475729; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=xVNOvXEvdW6leQE28c3jHe0aUAqH+GUjgXBsNd/0dtY=; b=Xbqexsx+Y827fYArushI327qEhT+N+Q32WMJPDdq94wAAWWWujOiHtONtYGU1LAP49Lp00f08EpXOVPkZwAnRrBaY+M2iNNlg+wtf1KJEm90dI+wdMo0Em49jYrE7Fx2c7FPOhFxJsanfBRvai6C+f7N+NgD0hZtSSmD3EeN7HU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=icenowy.me; spf=pass smtp.mailfrom=uwu@icenowy.me; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1745475729; s=zmail2; d=icenowy.me; i=uwu@icenowy.me; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=xVNOvXEvdW6leQE28c3jHe0aUAqH+GUjgXBsNd/0dtY=; b=aTmw7cA0A0R7yGwvidNysZ7lVbcK8j3iS0tYCpm6FjiTxXMnaR9ptnsGRb1kzUMC V3JtyIIZ1XuzwEuN7Gz0sHdJYzzGQb5T65nideQk+BM00P1mp292UrO9bVXvF9cwB5y Ihuc7dxMXSGibLBQJZpmBEV/2bXLS487kXHyYbj9P03roC7UYmkuxzU8Ji3dJsz9MCl uRogeAoqAEEvn6mBfxWIJTIgH3wm3VpcZakcs6QmT6gvhqVAlgalOYQy+EVWwCTELyI HhCyx1COuaqz6odjBcY9ScWA0CZEMssyVF1ylHqaI/Jf5TYtrqwKSgezprny/F0I7Qh bdIfjBFarA== Received: by mx.zohomail.com with SMTPS id 1745475727228758.2441586398901; Wed, 23 Apr 2025 23:22:07 -0700 (PDT) From: Icenowy Zheng To: Emil Renner Berthing , Jianlong Huang , Hal Feng , Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Icenowy Zheng Subject: [PATCH v2 3/3] riscv: dts: starfive: jh7110-pine64-star64: force no USB overcurrent Date: Thu, 24 Apr 2025 14:21:54 +0800 Message-ID: <20250424062154.655128-1-uwu@icenowy.me> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250424062017.652969-1-uwu@icenowy.me> References: <20250424062017.652969-1-uwu@icenowy.me> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ZohoMailClient: External The Star64 board has no GPIOs to indicate USB overcurrent, however the USB controller would stop to work if the overcurrent_n signal it gets is low (which means overcurrent situations happening because of the _n). Use the pin controller to force the overcurrent_n signal to be high in order to ensure stable behavior of the USB controller. Signed-off-by: Icenowy Zheng --- This patch depends on [1] for including the necessary header file. [1] https://lore.kernel.org/linux-riscv/20250424060605.638678-1-uwu@icenowy.me/T/#u arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts b/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts index 31e825be2065a..4fb522d127e21 100644 --- a/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts +++ b/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts @@ -91,6 +91,13 @@ GPOEN_ENABLE, input-schmitt-disable; slew-rate = <0>; }; + + overcurrent-pins { + pinmux = ; + }; }; };