From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx.nabladev.com (mx.nabladev.com [178.251.229.89]) (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 43D9339DBD0; Sat, 22 Aug 2026 07:56:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.251.229.89 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787385400; cv=none; b=OaHnPcNj2DFpe7jWChZvzpxs2PbR72ateKdwFnimzZtG/sGq1+uS+DbOYECIIc29txQ84h8a7j2XbR/IjGKjN33utVDqIVnUN56p8eGCrmaVZig0CNRGd3qHJBMqasHAvitBHXW6RzaWWlWhV6FW6jGt3AxVj8jRUZncy03Dv20= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787385400; c=relaxed/simple; bh=WsFnlg4/CTuCJRq0QbupnXzJgfkH1Sydo3piWrjffmM=; h=Message-ID:Date:MIME-Version:From:Subject:To:Cc:References: In-Reply-To:Content-Type; b=JuG0QPPDLG26ktMjkXMaoKSZWfRdBeoDz3jwS6oSDjQfMi2y7SgS4wibHtXq3p1LTafNw1RWtYvTkToBxFw+rW1XUizyzpKY1Dc6kHO152wRG7drOaP1J544d70Ztosk37K/lL6NFCVNS94I9HxcPjX8XvSKUCy7eXB05CHs4cA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nabladev.com; spf=pass smtp.mailfrom=nabladev.com; dkim=pass (2048-bit key) header.d=nabladev.com header.i=@nabladev.com header.b=A//luhdo; arc=none smtp.client-ip=178.251.229.89 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nabladev.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nabladev.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=nabladev.com header.i=@nabladev.com header.b="A//luhdo" Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 188A611C824; Sat, 22 Aug 2026 09:56:30 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nabladev.com; s=dkim; t=1787385391; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:content-language:in-reply-to:references; bh=zT4ZfaeeW+xDfLKh1vH6ykikxBYlIkfGuYnlJdpbz6Q=; b=A//luhdogAjSYjMVwX87YwUv29JcAAwGxvKY2UWLDydr+E4gK62XFHe4re2rrfIasUebo6 XQ4R2bHaiDNiS/Pn/2EPtBcWquGqkB7/8LYYtSbWJmWvR5X/boRRTZ/t5QV9kMeKN/jXjC cFJ6CLNaS0DVAzaBvyojmqhhYTF27IbsOSe+kBw0FWcmKS5XDKxChXz5cA+ab1dKScaDkL tt6QLtLbMjUri8j9w8sLHD8O+bCNIi3svcUPdtMGyZthWTOFHfIeX/jWCgV2hw0Zb9UbNj 4xSX5q2XqMzu8ecYGPO8BILvWm1qA2Z+BMLg7iNKY9oRZJYHJ3tAp2PaGfUuQQ== Message-ID: <225f1704-399d-47d0-8bca-73a27a59bbd4@nabladev.com> Date: Sat, 22 Aug 2026 06:51:43 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Marek Vasut Subject: Re: [PATCH 1/4] dt-bindings: usb: Document ST UCPD To: Fabrice Gasnier , linux-usb@vger.kernel.org Cc: Alexandre Torgue , Conor Dooley , Greg Kroah-Hartman , Heikki Krogerus , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , Sebastian Reichel , devicetree@vger.kernel.org, kernel@dh-electronics.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com References: <20260819163410.119755-1-marex@nabladev.com> Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Last-TLS-Session-Version: TLSv1.3 On 8/21/26 6:27 PM, Fabrice Gasnier wrote: > On 8/19/26 18:33, Marek Vasut wrote: >> Document ST UCPD Type-C block. The UCPD integrates the physical >> layer of the Power Delivery (PD), with CC signaling method, for >> operation with Type-C cables. Vbus and Vconn control is performed >> using an external chip, usually ST TCPP01/TCPP02/TCPP03 or similar. > > Hi Marek, All, > > I've sent a series for the complete case. Please check and review here: > https://lore.kernel.org/linux-usb/20260821-ucpd-host-fusb340-v7-2-rfc-v1-0-c5e27cbc0795@foss.st.com/ What is the difference between this driver and the ^ driver ? Why is this driver not covering "the complete case" , what is missing here and not missing there ?