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Wed, 30 Sep 2026 23:29:22 -0700 (PDT) Received: from [127.0.1.1] ([92.241.26.38]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48b068ff891sm4026217f8f.9.2026.09.30.23.29.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Sep 2026 23:29:21 -0700 (PDT) From: Fil Dunsky To: Arnd Bergmann Cc: Jason Li , 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" Subject: Re: [PATCH RFC 07/10] tty: serial: Add Cortina Systems CS75xx UART driver In-Reply-To: <3ddf4b8e-14b7-442b-9d4f-5167875e3d64@app.fastmail.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> <3ddf4b8e-14b7-442b-9d4f-5167875e3d64@app.fastmail.com> Date: Thu, 01 Oct 2026 09:29:19 +0300 Message-ID: <179083615914.311026.2458351803214458859@gmail.com> Content-Transfer-Encoding: 8bit MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format="fixed" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260930_232924_045733_C635A981 X-CRM114-Status: GOOD ( 10.96 ) 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 01, 2026 at 08:18:56AM +0200, Arnd Bergmann wrote: > 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'? I would go by the part number, the way fsl/nxp is handled: the parts that came out of Cortina Systems with a CSxxxx number keep "cortina", so "cortina,cs8032", and the CAxxxx parts that Cortina Access designed use "cortina-access". That gives a rule a later submitter can apply without knowing who sells the chip today. Jason, if Cortina Access would rather see its current CS80xx/CS81xx parts under "cortina-access", now would be the time to say so; I have no stake in those and only need a rule for the CS75xx. Thanks, Fil