From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D01C6CA5FB3 for ; Thu, 1 Oct 2026 06:19:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:Subject:References:In-Reply-To:Message-Id:Cc:To:From:Date: MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=WSGgZzQnESEoMyPhtWMXXdXD9xVOiDbP1Nsb3ROZGMs=; b=aLSTlnnVYDE6a3AMCTpu5ZT6kN oiuuUUt4c9BXTbYhbBIqwmNFQiD0V+Uhzo3OHjYExellhahTGzCB+0ShBWc5acNLniRAYxQ6mqn25 YwaV8vX1QACQMyBjbvOapsVwWSecDtzf2gnbxUMaj6cBl1aX5gt0PtBShgEuv+3/BwczpSM7UfZ1J 9VOEndzaPc0MenOYZmoNjsX9z6BSTTO6t8Ah9ll6pWUtxCANSoaEZZhMfzkhFQVQQszF2BvKT2S5C 8m+KH2Ov2UCz5tjsFcDp/0HmHJXOoXhrXfzWjFnWjo45H1CkJJPAnGmKPTjFef/q4yq4y6lRM7DMs 4ZDjtJTg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCA8e-00000007sab-2J3H; Thu, 01 Oct 2026 06:19:28 +0000 Received: from fhigh-b4-smtp.messagingengine.com ([202.12.124.155]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCA8b-00000007saC-0sYT for linux-arm-kernel@lists.infradead.org; Thu, 01 Oct 2026 06:19:26 +0000 Received: from ams-compute-02.internal (ams-compute-02.internal [10.64.2.62]) by mailfhigh.stl.internal (Postfix) with ESMTP id 4A4967A0032; Thu, 1 Oct 2026 02:19:22 -0400 (EDT) Received: from ams-imap-03 ([10.64.2.23]) by ams-compute-02.internal (MEProxy); Thu, 01 Oct 2026 02:19:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arndb.de; h=cc :cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to; s=fm1; t=1790835561; x=1790921961; bh=WSGgZzQnESEoMyPhtWMXXdXD9xVOiDbP1Nsb3ROZGMs=; b= OpX6Fux2Un0TEJSycfB5lJgiM3lkZnmrQRdIJl73OGGdRZRKq0pIPbPbgC4f8Kwf 980L+shNFWWrADbtRrcNonFXo1NSjDrTqPQayXxidLH2QiVVzWbIl4QS6oiNyog7 clNJ4sendjW4+F0mKCfeipargTZ3QNsTRmaxfHU6ZoEiK2y2SkhesbTIAKvj94zU 8wtSnEyFtXyzVTKiE6FnLKH1Wxp7pQJbBOYb6d4Qf4iUvCt3fKV0iVfXrdDFD+ow pbQ9tOF2nbUQ75bRXFEJ7i9l520ABLc+rfP3eszC9RGXBwirvLKGxIKwkmlmsY+T Ile7Zm6QXTmkVgbtV9FhKQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t=1790835561; x= 1790921961; bh=WSGgZzQnESEoMyPhtWMXXdXD9xVOiDbP1Nsb3ROZGMs=; b=B E+3gW+IIdnyC+klq4hqg/lQ/QtNWQ5SsifeM7mwu4XbP3/UAeZ6WNUB8Gb+Z71YZ ilZjHZaFodsKzhOzd0GdbNyhtOubLso8GfOWqHi46fXmRnGLM36E8Beua67/0+Xq 5Xy1iiHXWfJAcRktu7mEbEhL5daqbeZK3qjxqx0vEa2Kysqt3+7eAdiAUnh/iGIy QobUVgHDN48qcRBTK0RwfzNL/Axg+RsPJimyhxgN3dvd9NaggYQgFVFBsdCkUx/p 6zv6KBP4+z9dBganQmZQ5wsQDDpQh68+p0aBXPXmDDnSvEQHGLrh6HoUwSfkCISw IX2BYk8hBI07W/Zq2T9Rg== X-ME-Sender: X-ME-Proxy-Cause: dmFkZTE+kwCH61hB0/aBEMlYN1ECNGWRt1yz1v3KEVbjyO+0syRCfpET9a60dxxUGUJFZL 5nzEOEC+jb7ym3HdioM8/YP/gmeYmjv4adlMH5/FeC0SzoL73OrlnPnlm2dYmbp3AXPYfz ISp2FqssZJbOV7FKeOgAlOfoCjZjiMST1Sn4np4FG2gREjqq/n/1PzwCTOGXyhAAkFanBM voE6gw1R9RrqENqPDlMUNAwE3oM5Km0uReGVfkaQRvOEOBJf4ZuBw1Jszazn9z0Smnr/K/ Td0ryNAUPBo3mAH2GuwXcm3NaXqV7xqTjeLO7S6LMAHIxIeRg68CO7UKg5nOMf0kAhUytj Rlou6p0FVSlrvMpSuy/vmLQXk1NpwSP2WHNq7c7CFmnquJAClqMHqPkcOgaCTdDM6l0lig 5l9c607x8QX4VvEP77Gm/SA3htjjq+jGJ2aQUnFLdkyEnShAI9FJ/5GETbe2+jMg5s+pPl AftF1PkDMz3dccMHFPz5nzl9zHQG7F4vsgpP/46tm2MtZ99HWHtpg/A3+6y9AHAIQI4AZk ShwnZWBDd8nXRNLa92ORi3VJvbhgv/uCbZowIA06aL0cRMI8ellxsuz2LqfyI1iq6JGJJX WZu7YhpQUWQYIGVyewfA/3nkDQiQNp4HXSQw+RQmh7KXviF8ucO/pumuVZBw X-ME-Proxy: Feedback-ID: i56a14606:Fastmail Received: by mailuser.ams.internal (Postfix, from userid 501) id AB56F32A008A; Thu, 1 Oct 2026 02:19:16 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface MIME-Version: 1.0 X-ThreadId: AxcX56erMFXV Date: Thu, 01 Oct 2026 08:18:56 +0200 From: "Arnd Bergmann" To: "Fil Dunsky" , "Jason Li" Cc: "Linus Walleij" , "Krzysztof Kozlowski" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Greg Kroah-Hartman" , "Jiri Slaby" , "Russell King" , "Alexandre Belloni" , "Drew Fustini" , "Lorenzo Pieralisi" , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-serial@vger.kernel.org" Message-Id: <3ddf4b8e-14b7-442b-9d4f-5167875e3d64@app.fastmail.com> In-Reply-To: <179083239972.193541.4791387611943615705@gmail.com> References: <20260930-b4-cs75xx-v1-0-4617c4463529@gmail.com> <20260930-b4-cs75xx-v1-7-4617c4463529@gmail.com> <1d81c2ef-7a5b-4306-83d2-ff96b0eb6a06@app.fastmail.com> <179076749140.3134070.3869742286743401078@gmail.com> <179082517588.138645.14615134489246049313@gmail.com> <179083239972.193541.4791387611943615705@gmail.com> Subject: Re: [PATCH RFC 07/10] tty: serial: Add Cortina Systems CS75xx UART driver Content-Type: text/plain Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260930_231925_637947_D005CB78 X-CRM114-Status: GOOD ( 14.51 ) 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 Thu, Oct 1, 2026, at 07:26, Fil Dunsky wrote: > On Thu, Oct 01, 2026 at 05:14:59AM +0000, Jason Li wrote: >> We agree with the approach of using a single UART driver since the >> CS75xx and CA series share the same UART hardware implementation. >> For the Device Tree compatible strings, we would prefer using the >> "cortina-access" vendor prefix for the CA SoCs (e.g. >> "cortina-access,-uart"). >> We do not have concerns with using a neutral driver name such as >> cortina-uart. However, for DT bindings and related documentation >> describing the CA devices, we would prefer the wording "Cortina >> Access" to distinguish them from the legacy Cortina/Marvell branded >> devices. > > - drivers/tty/serial/cortina-uart.c, SERIAL_CORTINA, > SERIAL_CORTINA_CONSOLE; > - the CS75xx parts keep the existing "cortina" prefix > ("cortina,cs7542-uart"), the CA parts get "cortina-access,-uart" > when they are added; > - the binding and the Kconfig help name both families, as "Cortina > Systems CS75xx" and "Cortina Access CAxxxx". > > Arnd, this also answers the prefix question from patch 4 for me: I > would leave the CS75xx compatibles and the dts directory on "cortina" > then, and use "cortina-access" only for the parts that Cortina Access > made. Please shout if you or the DT maintainers see it differently. No objections from me either way, but I don't quite understand what that will mean for the older parts that that are still sold by Cortina Access: cs8032, cs8022 and cs8124. If someone later adds DT support for those, would we use 'cortina,cs8032' or 'cortina-access,cs8032'? Arnd