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[212.71.14.70]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a01f957b83sm3700185e9.15.2026.09.30.12.07.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 30 Sep 2026 12:07:01 -0700 (PDT) Message-ID: Date: Wed, 30 Sep 2026 21:07:00 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 2/2] rtc: Add Raspberry Pi 5 RTC driver To: Stefan Wahren Cc: Alexandre Belloni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Jonathan Bell , linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, pbrobinson@gmail.com, Dom Cobley References: <20260930095203.492949-1-sander.speetjens@gmail.com> <20260930095203.492949-3-sander.speetjens@gmail.com> <7441de5b-e9a6-4080-b312-d6c7123fdcde@gmx.net> <2872a37d-4f24-4429-aba5-34f020740821@gmail.com> <550045ab-fe74-4445-8f6c-4a031f5b436b@gmx.net> Content-Language: en-US From: Sander Speetjens In-Reply-To: <550045ab-fe74-4445-8f6c-4a031f5b436b@gmx.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260930_200703_968346_DAF9413F X-CRM114-Status: GOOD ( 12.46 ) 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 >>>> +MODULE_ALIAS("platform:raspberrypi-rtc"); >>> Is this really necessary for module autoloading? >> I'm not sure, it was used in the previous versions when using the >> platform device register on the register_clk driver before it had a >> custom dt node. > You can test by removing the line and compile it as a module. In case > the RTC driver is still automatically loaded, we can drop it. There is no DT node for the RTC. The firmware driver registers us as a platform device at runtime (we deliberately avoid a child node per DT maintainer guidance). Therefore the platform alias is still needed for module auto-loading.