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Thu, 01 Oct 2026 12:03:52 -0700 (PDT) Received: from [127.0.1.1] ([92.241.23.201]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48b380fada5sm222539f8f.24.2026.10.01.12.03.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Oct 2026 12:03:51 -0700 (PDT) From: Fil Dunsky To: Conor Dooley Cc: Arnd Bergmann , 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 06/10] dt-bindings: serial: Add Cortina Systems CS7542 UART In-Reply-To: <20261001-depose-jawed-f58674109fe7@spud> References: <20260930-b4-cs75xx-v1-0-4617c4463529@gmail.com> <20260930-b4-cs75xx-v1-6-4617c4463529@gmail.com> <20261001-depose-jawed-f58674109fe7@spud> Date: Thu, 01 Oct 2026 22:03:49 +0300 Message-ID: <179088142900.827715.5924606072568297915@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-20261001_120354_737686_BD224B12 X-CRM114-Status: GOOD ( 11.93 ) 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 07:48:03PM +0100, Conor Dooley wrote: > > +description: > > + The UART found in the Cortina Systems CS75xx (Goldengate G2) SoCs. It has > > Different SoCs need specific compatibles. > They can fall back to the cs7542. Right, the text reads as if the one compatible covered the whole family. The binding only describes the CS7542, which is the only part I can test, so in v2 the description says just that, and that the other CS75xx parts and the Cortina Access ones (the same block, see the discussion on patch 7) are to be added with their own compatible and "cortina,cs7542-uart" as the fallback. The compatible stays a single const until one of them is added. Thanks, Fil