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Tue, 10 Nov 2026 03:23:58 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface X-Archived-By: MIME-Version: 1.0 X-ThreadId: A4QaHkHhrVgc Date: Tue, 10 Nov 2026 09:23:27 +0100 From: "Arnd Bergmann" To: "Krzysztof Kozlowski" , "Brian Masney" Cc: "Long Zhao" , "Alexandre Belloni" , soc@lists.linux.dev, linux-arm-kernel@lists.infradead.org, "Michael Turquette" , "Stephen Boyd" , "Jerome Brunet" , linux-clk@vger.kernel.org, "Andy Shevchenko" , "Rob Herring" , "Krzysztof Kozlowski" , "Krzysztof Kozlowski" , "Conor Dooley" , "Catalin Marinas" , "Will Deacon" , devicetree@vger.kernel.org, "Long Zhao" , linux-kernel@vger.kernel.org, "Linus Walleij" Message-Id: <7eeaf54d-2d7d-420c-a34e-eebc6dd0effe@app.fastmail.com> In-Reply-To: <20261110-interesting-hilarious-shark-2dbfc0@quoll> References: <20261105-cv75-soc-v11-0-aa6ee0b2380d@ambarella.com> <179427375370.1061670.4050288038934218487.b4-review@b4> <20261110-interesting-hilarious-shark-2dbfc0@quoll> Subject: Re: [PATCH v11 0/5] arm64: add Ambarella CV75 SoC support Content-Type: text/plain Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261110_002415_628161_D0F647ED X-CRM114-Status: GOOD ( 18.98 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-5.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Tue, Nov 10, 2026, at 09:02, Krzysztof Kozlowski wrote: > On Mon, Nov 09, 2026 at 08:22:33PM -0500, Brian Masney wrote: >> - I can then merge patches 3 and 5 into clk-pile. > > You will have code depending on non-exisitng ARCH_AMBARELLA symbol, but > if that's fine for you then sure. > >> >> - The DTS folks will take patch 4. > > The entire platform is for SoC tree. This sounds ok for > me, but I am not sure if Arnd was merging pulls with > dependencies. If not, then worse case the arm64 bits will > wait a cycle. Anyway, I guess you can take clock bits. The way I usually handle new SoC families is to have a separate branch for those beside the usual dt/driver/defconfig updates, possibly for multiple new SoC families, and possibly including required drivers. The idea is that whatever we merge here has at least a chance to boot into an initramfs with a console. If it can boot without the clk driver, the easiest way would be to just keep the clk and arch/arm64 bits separate. If the clk driver is required to boot, I would suggest having a branch with the two clk patches that can get merged (not applied) into both the clk tree and the soc/newsoc branch to put the other patches on top. This would make sure we only have each commit once, but still have a clean history that includes the driver in both sides. Arnd